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TECHNOLOGY CENTER

Communication room gas extinguishing system solution

First, comprehensive 1.jpg

    Firefighting episode in the development of informatization

    In recent years, the fire accidents in the communications room have never stopped: On February 27, 2002, the unattended local transmission room on the second floor of the Communication Building, Haifu Road, Haikou City, Hainan Province, due to the power placed under the cabling channel The fire caused by short-circuiting of the line aging caused a large-area relay blockage in the local call center of the Haifu Bureau. The incoming and outgoing calls, data communications, PHS networks, some financial system networks, and cable television networks were all affected to varying degrees, and triggered There is a panic outside. At the same time, 6500 users of the access network were disconnected and 52 Chinese mobile communication base stations were blocked. The large scale, long time, and high level of fire in the communication hub room are rare in the country. On May 25th, 2002, the telecommunication bureau of Jiangsu Suiyang County intruded into the computer room due to external strong electricity. It caused 120,000 program-controlled telephone calls in the county; on March 9, 2004, at around 1:00 a.m., an extremely large fire broke out in the computer control room on the 5th floor of the office building of the Qingyuan Meteorological Bureau. The number of meteorological equipment that was destroyed by the fire was worth about 5 million yuan. Meteorological observation and the Meteorological Daily work hard. The main reason is the aging of the wires.

    The number of large and small fires is too numerous to enumerate. With the rapid development of the information age in China, large and small computer rooms of all kinds are rapidly building around us. The size of these computer rooms is very small, but the equipment is very expensive. In the event of a fire, the losses are hundreds of times higher than the entire investment in fire protection in the computer room.

    Main factors of fire danger in the computer room

    (1) The fire safety of electrical room equipment must be fully considered during design. However, in terms of current computer room construction, many project owners are contracted to a professional computer room construction company in the form of a general contract covering all decoration and main equipment. Equipment, software, and firefighting facilities basically reach the turnkey project. The owner's requirement for firefighting is basically "acceptance by the fire department, and everything will be fine!" This concept of firefighting is basically at the level of passive consumption, and our country's fire management forces are Compared with other developed countries, it is very weak. The fire department cannot impeccablely supervise every project. The maximization of profits drives firefighting into difficult progress in the general contract. The lack of investment is only one of them. Second, most of the equipment in the equipment room is sophisticated equipment, but the firefighting facilities still remain at the level of “acceptance through acceptance!” Minimizing the damage may be the design realm that every fire protection designer wants to achieve. At present, many fire protection products on the market can do it. But once everyone mentions this problem, there is a problem immediately: money is not enough! Thirdly, computer room construction companies are very professional in computer and decoration, but they are unfamiliar with the science of firefighting applications. They are often overly deducted when estimating investments, making many projects undervalued, and computer room building companies should communicate with fire companies regularly. , And determine three to four fire fighting and working units for long-term cooperation, this can reduce the cost and improve the performance of fire engineering.

    (2) A short circuit, overload, or excessive contact resistance of the electrical circuit causes a fire accident. Such as: 1995 Guangdong Shantou Jinsha Posts and Telecommunications Building, a major fire, is due to aging wires, insulation properties caused by a short circuit; 2001 Hainan Telecom Corporation microwave building fire due to the power supply terminal contact resistance is too large;

    (3) Static electricity creates fire. The operation of communication equipment and the clothes worn by workers can generate static electricity. If the telecommunication equipment room is improperly grounded, the generated static electricity load can not be led to the earth soon but becomes more and more. Once a high potential is formed, static electricity will be generated, sparks will be generated, and ignition of nearby flammable materials will occur;

    (4) Lightning and other strong intrusion cause fire. The electrical effects generated during lightning discharge can generate surge voltages of up to several tens of thousands volts and even hundreds of thousands of volts, enough to burn down power lines and equipment, cause insulation breakdown, and cause short-circuit fires. The thermal effects, electrostatic induction, and electromagnetic induction generated during lightning discharge may all cause fires;

    (5) Long-term power-on of computers, air-conditioners, etc. in the telecommunication room, causing fires due to equipment failures. In May 2000, the operating terminal of the transmission room of the Beijing Branch of Daxing County Qingyundian Branch of Beijing Telecom Company caused a fire due to spontaneous combustion of the monitor due to long-time operation, resulting in transmission room crashes and 20,000 fixed-line telephone users failing to communicate properly. Since the power equipment in the telecommunications room is always in a 24-hour working state, it is prone to fatigue and aging.

    (6) The use of flammable finishing materials, especially air-conditioning insulation and duct insulation, is easily overlooked by people;

    (7) Inadequate management, flammable materials, or flammable and explosive cleaning solvents introduced during maintenance and repair;

    Firefighters’ awareness of the fire in the engine room crew

    In fact, each engine room project has more or less installed fire-fighting facilities, and it has also passed the acceptance of the fire department. However, whether or not it can play a role in the event of a fire is a problem. I think that most staff members in the computer room will have a question mark. A few years ago, I had witnessed the following things: The project was successfully accepted, and the fire department in charge sent a detailed inspection of the functions used. The project was perfect, but the room was not actually put into use. The electromagnetic execution required for gas extinguishing was not installed for the time being. The firefighting training was conducted for two days. It can be said that the staff in the room will be able to operate all fire-fighting equipment smoothly. However, after four months, the after-sales staff went to the routine inspection and found that the electromagnetic actuator was still in motion. At this time, the engine room has been put into operation for more than two months. In this case, the fire-fighting facilities have actually become furnishings. If the fire really occurs, the consequences are unimaginable. At this point, the fire inspection department has done its best! He is not likely to worry about the fire control of a company as it is with primary school students. The actual situation is impossible to do. The construction unit is also training hard, but has not received any phone calls or letters from the owners. Throughout this matter, the owner’s unit had a very weak sense of fire protection. There were many personnel trained in the engine room at the time, but since the acceptance was completed, no one had entered the firefighting equipment room and turned a deaf ear to some of the national regulations on how to use and maintain it.

    Improving fire safety awareness is actually saving investment for firefighting: Investing in the highest technology, the most advanced firefighting facilities = careful maintenance of due diligence + general firefighting facilities.

Second, ten points should be noticed in the design process of the gas fire extinguishing system in the computer room

1, the choice of fire detection methods

    Currently used in the fire room design of the computer room are generally used: point-type fixed-temperature and point-type smoke detectors are used in ceilings, because ceilings are generally equipped with lighting equipment, these devices can easily produce unsafe factors after aging; also used under the ceiling Point-type constant temperature and point-type smoke detectors; cable-type linear fixed-temperature detectors are generally arranged in the floor, because the point-type detector has not played its normal role in this working condition. This kind of design method is very common in China. There should be no problem in fire inspection and acceptance.

    From the aspect of detection speed, the above method is not optimal, and the working conditions in the equipment room are also very complicated. For example, a cable-type sensor is installed in the floor because the detector is “S” like in the floor. Arranged, after all, the exploration temperature is sparse, and a large number of cables in the floor are generally on fire and a large amount of smoke is emitted. Only then can there be enough temperature rise to touch the sensor cable temperature sensor. The detection speed is always unsatisfactory. Some people proposed to install point-type smoke in the floor, this method can only be mentioned in the floor under the premise of no ventilation, but also to consider the installation location of the smoke, the number, to consider the thickness of the detector itself (flue gas Up), but also to consider the false alarm of smoke. The most ideal way is to detect smoke using active smoke-inducing smoke detection device and make an important monitoring of the vent; temperature detection using a constant temperature cable temperature detector, in addition to the "S" arrangement of communication cables Make the same important arrangements for the vents. The use of point-type heat-sensing smoke detectors in the ceiling and under the ceiling also has the same problems as in the floor. The most ideal approach is to use the suction-type smoke detection method in the ceiling and under the ceiling to detect it faster. The suction pipe can be directly drilled into the cabinet for detection; the cable-type linear detection in the ceiling and under the ceiling is not good enough to handle the aesthetic problems first, so at this time, the fixed point temperature in the ceiling and under the ceiling is more realistic. A constant temperature cable temperature detector should be installed in the cabinet. This method is complicated and expensive, but the speed of detection and confirmation of fire are the fastest.

    Judging from the use of fire extinguishing agents, fire extinguishers can be extinguished as soon as the fire is detected, which in turn saves operating costs and minimizes equipment losses. Conversely, fires must be formed to a certain degree before they can be alarmed. The personnel are out of control, and the fire extinguishing agent will certainly be blown out eventually, but the fire damage to the equipment room is much greater.

2.jpg

2, the choice of fire extinguishing system

     Most of the extinguishing agents currently used in extinguishing rooms in the engine room are heptafluoropropane or mixed gases. Carbon dioxide is certainly not suitable because the temperature drop will cause damage to the heating machine. Heptafluoropropane can be used in the fire extinguishing of the machine room. There are all types of submerged fire extinguishing in the pipe network and no submerged fire extinguishing in the pipe network. Two forms can be used to compare the investment in a specific project. One problem is not obvious; the mixed gas extinguishing system There are also many applications for fire extinguishing in the engine room. Most of them use pipe network fire extinguishing methods because the number of high-pressure bottles used in the same-size machine room is less than half that of the mixed gas. The room area is generally very small, and the mixed gas is in the form of pipeless network. The number of tankless tanks is relatively large, and in addition, the starting current is a problem.

3.jpg

3, the amount of fire extinguishing agent storage device calculation

    The specification of the heptafluoropropane fire extinguishing system clearly stipulates that the fire extinguishing concentration in the protected area shall be checked for the maximum fire extinguishing concentration at the maximum ambient temperature, and shall comply with the following provisions: For a protected area that is often occupied by people, the maximum concentration in the protected area shall not be Exceeds the NOAEL value in Table 6.0.1; for a protection zone that is often left unattended, or a protection zone that can be evacuated before the end of the maximum delay of 30 seconds after the system alarm, although it is still working, the maximum concentration of fire extinguishing agent in the protection zone The LOAEL value in Table 6.0.1 should not be exceeded.

Physical toxicity index of heptafluoropropane (V/V%)

Extinguishing agent name NOAEL LOAEL

Heptafluoropropane 9.0 10.5

    But usually a lot of engineering design will ignore this issue, for two reasons: First, the designer does not understand this problem; Second, intends to avoid this problem in order to reduce costs. However, this issue is very important from a safety point of view. Fire extinguishing facilities were originally designed to ensure the safety of people and reduce property losses. Failure to consider this issue is equivalent to using money to introduce a risk factor that poses a threat to life safety. .

    Usually there is a calculation of physiological toxicity indicators in the pipe network system, and no pipe network fire extinguishing system can be used for accounting for physiological toxicity, because no pipe network itself stores fire extinguishing agents according to the actual usage.

    The following is an example of dose calculation and toxicity index calculation for a project:

Detailed calculation of dose calculation of heptafluoropropane automatic fire extinguishing system

Protected Area Division Protection Area Name Protective Area Structure Division High Area

(m2) Volume

(V) m3 total volume

(V)m3 coefficient K design concentration C specific volume S bottle size and quantity design volume kg pressure relief port area M2 injection time S flow rate QP/(KG/S)

Protected Area (1) 6th Floor Lab 1 Zone Ceiling 63.6 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 63.6 267.12 267.12 1 8 0.13716 120L×3 169.35 0.0917 8 21

Inside the floor 63.6 0.00 0.00 1 8 0.13716 0.00 0.0000 8

6-story shielded room 1 in the ceiling 11 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 11 46.20 46.20 1 8 0.13716 70L×1 without pipe 29.29 0.0159 8

Inside the floor 11 0.00 0.00 1 8 0.13716 0.00 0.0000 8

6-story shielded room 2 in the ceiling 11 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 11 46.20 46.20 1 8 0.13716 70L×1 without pipe 29.29 0.0159 8

Inside the floor 11 0.00 0.00 1 8 0.13716 0.00 0.0000 8

 227.93

Protected Area (2) 6-Floor Lab 2 Zone Ceiling 68.8 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 68.8 288.96 288.96 1 8 0.13716 120L×3 183.19 0.0992 8 22.8

Inside the floor 68.8 0.00 0.00 1 8 0.13716 0.00 0.0000 8

 183.19

Protected Area (3) Laboratory Floor 3, 7th Floor Ceiling 87.2 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 87.2 366.24 366.24 1 8 0.13716 120L×4 232.19 0.1257 8 29

Inside the floor 87.2 0.00 0.00 1 8 0.13716 0.00 0.0000 8

 232.19

Protected Area (4) 7th Floor of Lab 4 District Ceiling 68.8 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 68.8 288.96 288.96 1 8 0.13716 120L×3 183.19 0.0992 8 22.8

Inside the floor 68.8 0.00 0.00 1 8 0.13716 0.00 0.0000 8

 183.19

Protected Area (5) 6F-2 Laboratory (5 District) Ceiling Ceiling 90.64 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 90.64 380.69 380.69 1 8 0.13716 120L*3 241.35 0.1306 8 30.1

Inside the floor 90.64 0.00 0.00 1 8 0.13716 0.00 0.0000 8

 241.35

(warehouse) protected area (6) 1 within ceiling 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 78 327.60 327.60 1 8 0.13716 207.69 0.1124 8 25.9

Inside the floor 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

2 Inside the ceiling 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 9.75 40.95 40.95 1 8 0.13716 25.96 0.0141 8 3.2

Inside the floor 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

3 Inside the ceiling 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 9.75 40.95 40.95 1 8 0.13716 25.96 0.0141 8 3.2

Inside the floor 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

4 Inside the ceiling 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 9.75 40.95 40.95 1 8 0.13716 25.96 0.0141 8 3.2

Inside the floor 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

5 Within the ceiling 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 10 42.00 42.00 1 8 0.13716 26.63 0.0144 8 3.3

Inside the floor 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

6 Within the ceiling 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

Hollow 4.2 38.75 162.75 162.75 1 8 0.13716 103.18 0.0558 8 12.8

Inside the floor 0 0.00 0.00 1 8 0.13716 0.00 0.0000 8

 Subtotal dosage 655.20 120L*7 415.38 8 51.9

Test of Physiological Toxicity of Heptafluoropropane

Protected Area Design Quantity kg Open 120L Storage Bottle Quantity Each Bottle Dispensing Agent kg Total Dispensing Agent kg Multiple Dosing Agent kg Specified Maximum NOAEL Value % Actual NOAEL Value % Checking Result

(1) 169.35 3 61.34 184.02 14.67 9 8.633249208<9% pass

(2) 183.19 3 184.02 0.83 9 8.033153559<9% pass

(3) 232.19 4 245.36 13.17 9 8.41563343<9% pass

(4) 183.19 3 184.02 0.83 9 8.033153559<9% pass

(5) 241.35 4 245.36 4.01 9 8.122182137 < 9% pass

(6) 415.38 7 429.38 14.00 9 8.247342861<9% pass

note:

1. In order to qualify the NOAEL value, add 2 kg dose to each bottle. The total storage design dose is 429.38

2. The actual storage of pharmaceuticals to add the drug residue: 3.5 kg / bottle, so a total required agent: 453.88 kg

3, fire separation in the fire design process should pay attention to a number of issues

    Each gas fire extinguishing system must first be designated for fire extinguishing partition at the beginning of design. The result of fire extinguishing partition delineation will often directly affect the cost of the entire project. Since the actual use process flow of each project is not the same, the fire extinguishing partition is delimited. There is also a wide variety of specific examples of the following examples:

4.jpg

As shown above, two shielded rooms are housed in the main room. There are two different views on the partitioning of fire extinguishing zones. One view is to divide the three rooms into one zone and use an independent system to extinguish the fire. This means that three rooms simultaneously emit an alarm when a fire occurs in any one of the three zones and at the same time Another idea is to use these three rooms as three separate fire zones and use a combination to distribute the flooded fire extinguishing system. When a fire occurs in any one room, three rooms report the same time, but the system only fires. The area is fired with extinguishing agents. The former uses more doses than the latter, and the three rooms are actually treated as an independent fire-fighting zone. There is basically no dissent, but the investment is higher than the latter; the latter requires us to simulate the fire site and then set it. If room 1 is on fire, all rooms will be alarmed, all personnel will be evacuated, and the medicine will only be delivered to room 1. If a fire occurs in the main room, all rooms will be alarmed, all personnel will be evacuated, and the medicine will only be delivered to the main room. Basically, no dangerous situations will occur. Alarm area The scope is converted into an alarm area in accordance with 4.2.1.1 of the “Fire Automatic Alarm System Design Specification”. The fire extinguishing area is divided into three separate protection areas, and the external door and enclosure structure are set according to the requirements of the gas protection area. Therefore, the latter proposal is more reasonable in terms of use and investment.

4. Effect of Air Conditioning and Ventilation System on the Division of Fire Room in the Computer Room

    As shown in the figure below, if three rooms use independent air-conditioning systems from the ceiling to the floor, it is feasible to divide the room 1 and the machine room 2 into one area or two separate fire-fighting areas. However, if a three-room service with precision air conditioners is used, the three rooms “air-supply and under-floor air return” must be divided into one fire extinguishing area, and the chemical reserve should be 3 or 1.5 times that of the former. The impact on the investment in the project is relatively large. Except for fire extinguishing agent and discharge pipeline arrangement being considered as a protected area, the detection range should also be divided into blocks for detection, but it is also a detection area. The alarm area should also be set and linked in accordance with one area.

5.jpg

5. The role and requirements of fireproof glass in firefighting in the engine room

    The glass is often used as a partition or door and window during the construction of the machine room. The design of the gas extinguishing system requires that the envelope of the protected area be not less than 1200 Pa. Therefore, the fire designer and the decoration designer of the equipment room should perform the glass structure. Strength approval. Even if the glass adhesion strength requirements, the design of the relief port in the total flooded system is also essential.

Thickness/mm Glass's largest use area/m2

Ordinary tempered sandwich tempering

3 1.2 1.4~2.8 1.8~3.6

4 2 2.4~4.8 3.0~6.0

5 3 3.6~7.2 4.5~9.0

6 4.2 5.5~10.1 6.3~12.6

8 5.3 6.4~12.7 8.0~15.9

10 7.3 8.8~17.6 11.0~21.9

12 9.6 11.5~23.0 14.4~28.8 In some reconstruction projects, the fire resistance of glass should be improved by adding a fireproof film when the glass strength complies with the specified requirements. It is better to use fireproof glass for new construction projects.

6. The necessity of centralized management of fire alarm signals

    The computer room gas fire extinguishing system generally communicates with the building's general fire alarm system (middle control). The controller of the gas fire extinguishing system should provide three signals to the central control: fire alarm, discharge, and fault so that the central control can have certain To understanding. For gas fire extinguishing systems in high-rise buildings, there must be three signals communicating with fire alarms, discharges, and faults in the central control. Central Control does not control the gas fire extinguishing system. Even if the engine room is on duty 24 hours a day, it must communicate with the control center. Building Fire He is an overall system. Once a fire occurs in a certain part, related alarms and emergency measures in the building must be started. If there is no communication, this area will become a “blind area” for central control. The “blind area” is in a high-rise building. It is not allowed inside.

    In some projects, the detector in the engine room itself uses the bus detector in the control, and the control module transmits the alarm status signal to the fire extinguishing controller. This can only be said to be a direct communication of alarm signals, but the fire in the engine room after the start did not start the control of fire-fighting facilities is unknown, so it is necessary to carry out the discharge and fault status communication.

7, the uniqueness of the manual start button6.jpg

    In the design of gas fire extinguishing systems, it is common to encounter two or more outlets in a protected area. Generally, manual start and stop buttons are set at the outlet. However, this method should be the fastest in terms of convenience. In case of a fire, there may be a time when the judgment is not possible. For example, the following situations are likely to delay the extinguishing time and cause greater damage to the equipment:

    As shown in the figure on the right, people at the North Gate exit believed that the fire was out of control and pressed the start button. Then they left the scene in a hurry. People exiting the South Gate thought that the fire was not large. They should be extinguished with fire extinguishers. The stop button, of course, stopped the system during the delayed spray phase. After some efforts, the Nanmen found themselves unable to control the fire, and then after pressing the start button twice on the button of the South Gate position, the gas fire extinguishing system was started and the fire was immediately extinguished. From the North Gate start button was pressed to the South Gate twice to start the fire extinguishing system for a total of 2 minutes, each time in the fire situation is very precious. The fire was extinguished, but the burning time was extended by 2 minutes. Not to mention the degree of damage to the equipment, the threat of fire 2 minutes ago and the threat of fire 2 minutes later are very different. There is a big difference in terms of fire risk. This is a serious delay in extinguishing the fire and degrading the personnel.

    If only the "Start/Stop button" is arranged at the North Gate, the two staff members will definitely meet at the same exit, the "North Gate." At this point the two people's judgments will be unified: First, the fire can not be controlled, immediately start the fire extinguishing system; Second, the fire should be controlled, two fire extinguishers work at the same time.

    Therefore, it is necessary to emphasize the uniqueness of the manual start-up and stop button arrangement of the fire extinguishing area. It is also feasible to install a single starting device.

8, the installation location and the number of alarm devices

    Alarm devices generally use alarm bells and sound and light alarms. Some computer room gas fire extinguishing projects install alarm bells and audible and visual alarms outside the exits. This is obviously to warn outsiders that there is a fire in the equipment room. The inside of the equipment room is Not to be warned, in fact, the warning function of the gas proof indicator lamp is set repeatedly. The most ideal method is to set the alarm bell and audible and visual alarm in the machine room. The alarm bell is used to inform the engine room area that there is a fire, that is, one of the two detectors has been activated, and the audible and visual alarms have sounded. Informed that the fire has been confirmed by the system and is in the delayed spray phase. Connect an alarm bell in parallel outside the exit, ring inside and outside at the same time, and set “bleed light” outside the door. In this way, people in the equipment room were warned to warn people outside the computer room so that the progress of fire development was accurately recognized, which was beneficial to the fire extinguishing and personnel evacuation of the entire computer room.

    The alarm device has a “bleed light” in addition to the alarm bell and the audible and visual alarm. Some manufacturers of the “bleed air indication” are always on from the delay. Some manufacturers only light up when confirming the gas jet. Both types do not have a clear “delayed spray” or “sprayed” state, and the most reasonable one is that the “delayed spray” phase is bright and “sprayed” is always on.

9. Application of Access Control System in Computer Room Security Management

    Access control products are currently used in a large number of computer room security systems. Once a fire occurs, the machine room door should be disconnected so that personnel can be evacuated from the site. However, this problem has not been well resolved in some projects. Normally, once a fire occurs in the engine room, The fire extinguishing controller should give a signal to the access control system, and this signal should be kept until the fire alarm system is reset. The time for the release of the access control should also be synchronized with this signal, but the access control products sometimes selected by the owner do not have this function, or the owner is burglarproof. The purpose is simply not to allow the fire alarm signal to access. The level of human convulsions in fire situations is very different. The switch is in front of the hand, but it cannot be found. It is necessary to emphasize such issues here.

10. Emergency lighting and evacuation instructions

    The emergency lighting and evacuation instructions should be involved in the initial plan of the engine room construction company, and should be designed in strict accordance with national regulations. The decoration drawings of the engine room are generally not reviewed by the fire protection department. Therefore, the omissions are normal, but in case of fire It is required that lighting be immediately powered off, especially when the fire is confirmed manually and without warning, the environment is dark and the emergency lighting and evacuation instructions are particularly important.

11, fire extinguishing controller installation position selection

    Pipe network fire extinguishing systems generally have dedicated rooms to place fire extinguishing controllers, which can sometimes be placed in more duty stations for staff convenience. However, most of the controllers in the non-pipe network fire extinguishing system are embedded in the trunk of the non-pipe fire extinguishing device, and are placed in the protected area together with the pipeless fire extinguishing device. However, the placement position of the fire extinguishing device is generally affected by the spray angle and activities. The influence of many factors such as area and space obstruction makes the position of the controller not ideal, and it is often blocked behind the cabinet or the operating position and inconvenient. For this reason, it is recommended that in the absence of pipe network fire extinguishing, the controller should be set up at the most convenient position for operation. Do not install it with the cabinet. This will greatly improve the safety of the pipeless fire extinguishing system.

Third, the fire system training, maintenance and fire management system7.jpg management

    Fire education and training is the most important in the construction of the entire gas fire extinguishing system. It is related to the safe and effective operation of the fire protection system. However, it is also the weakest link in the current domestic fire protection construction and the most untestable one. The original design drawings are designed by a design department with a design qualification. After the design of the drawings is completed, they will be reviewed by the fire station or a professional plan approval company. During the construction of the project, the supervision unit or the owner directly controls the quality of the project. A professional fire-fighting inspection company is invited to conduct a third-party inspection, and then the fire department in charge makes a final acceptance. It can be said that all layers of water are leak proof. It is a question of who will come to supervise the fire education and training, and who will confirm the results and quality of the training. A "certificate of training" with a legal person's seal of the construction unit is far from enough, and it is also very rigorous.

    We can refer to the mode of operation of the plan approval company in Shanghai to institutionalize and supervise the fire education and training. The specific measures can allow the fire detection department to take on this responsibility: after the completion of the fire education routine, the construction organization will organize and study it earnestly. The trainee must have the company's safety officer to participate (the safety officer should have the record in the fire control department). The construction unit will then invite the fire detection company to inspect the project if there is no problem with the training, and perform the professional examination on the personnel participating in the training. (Because the form of gas extinguishing products is very small, they are basically the same, the inspection company should be able to test it, and it can be tested). Only after passing the examination can a qualified inspection report be issued, and then the fire department in charge will perform a “sampling inspection” on registered safety personnel. . In this way, I believe that the real purpose of training can be implemented.

Fourth, the end of qualified

    There is no “holiday” in the engine room, and the operation is not ceaseless all year round. With the increasing automation of communication equipment, the computer room is the hub of modern communications, and its safety has become a top priority. Once a fire occurs, it will cause paralysis in the entire communications network. Cause serious property damage and social impact. There are still many technical problems in the engine room firefighting that need further exploration and research. It needs the efforts of all sectors of the society to continuously improve.


Address: RM. 1103, Lihe Building, NO.59 Suli Road, Suzhou, Jiangsu, China

Tel:13862166059

Email:sales@licornechina.com

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