The following is collected by Tianjin Capital Decoration for reference only.

ga498-2114

kitchen equipment fire suppression device

2114-16-14 released

2114-11-11 implemented

before the people's Republic of China * * * and the Ministry of Public Security issued

ga498-2114

this standard is proposed by the fire department of the Ministry of public security.

this standard is under the jurisdiction of the second technical Committee of the national fire protection standardization technical Committee (CSBTS/TC113/SC2).

This standard is drafted by tianjin fire Research Institute of the Ministry of Public Security.

main drafters of this standard: Wang Shuyan, Dong Haibin, Zhao Yongshun and Ma Jianming.

ga498-2114 fire extinguishing device for kitchen equipment

1 scope

this standard specifies the model, basic parameters, requirements, test methods, inspection rules, packaging, transportation, storage and instructions for use of fire extinguishing devices for kitchen equipment (hereinafter referred to as devices).

this standard is applicable to fire extinguishing devices of kitchen equipment.

2 normative citation documents

The clauses in the following documents become clauses of this standard through the citation of this standard. For dated reference documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, all parties who reach an agreement according to this standard are encouraged to study whether the latest versions of these documents can be used. For undated reference documents, the latest edition is applicable to this standard.

GB 5199-1994 seamless steel gas cylinder

GB 5111-1994 welded steel gas cylinder

GB5135.1 Automatic sprinkler system Part 1: Sprinkler

GB9969.1 General instructions for industrial products

GA 411-2112 Performance requirements and test methods for gas fire extinguishing systems and parts

3 Terminology and test methods.

3.1 Restaurant fire suppression device for kitchen equipment is fixedly installed in high-humidity and hot environment such as kitchen, and it is a box-type fire extinguishing device that can automatically detect and implement fire extinguishing, consisting of fire extinguishing agent storage container assembly, driving gas container assembly, pipeline, nozzle, valve, valve driving device, fire detection component, control device, etc.

3.2 gas valve gas shutoff valve is installed on the gas pipeline of the kitchen stove, which can be closed immediately when the device is started.

3.3 water flow valve

a valve which is installed on the pipeline of the device and connected with the water source, and can be opened immediately after the device starts to completely spray the fire extinguishing agent.

3.4 agent storage container assembly

is composed of fire extinguishing agent container, container valve, siphon, etc., and is used to encapsulate the fire extinguishing agent.

3.5 drive gas container assembly expellant gas cartridge assembly consists of gas storage container, container valve, etc., which is used to package and store drive gas.

3.6 working pressure the equilibrium pressure of the fire extinguishing agent storage container assembly and the driving gas container assembly in the environment of 21℃ after rated filling and pressurization.

3.7 ga498-2114 maximum working pressure maximum working pressure equilibrium pressure of fire extinguishing agent storage container assembly and driving gas container assembly in the highest working temperature environment after rated filling and pressurization.

3.8 discharge rate the mass of extinguishing agent sprayed from the nozzle in unit time, kg/s.

4 model compilation and basic parameters

4.1 model compilation

The model of the device is compiled according to the following provisions.

ZC ×××××/×

Table 1 code

Fire extinguishing agent category code Fire extinguishing agent storage type code Flue fire extinguishing code

Water foam other pressure-storage gas cylinders are driven with flue fire extinguishing function but not with flue fire extinguishing function

S P Q Z is not marked with Y, and is not marked with

Example: ZCPZY8 represents a pressure-storage foam fire extinguishing agent kitchen equipment fire extinguishing device with 8 nozzles with flue fire extinguishing function.

4.2 Basic parameters

4.2.1 Working temperature range

Working temperature range of the device: 1℃ ~ 55℃. When the designed working temperature range of the product exceeds the above temperature limit, obvious permanent marks shall be made on the product label.

4.2.2 working pressure

according to the storage type of fire extinguishing agent, the production unit gives the working pressure of the pressure storage device or the gas cylinder driven device.

5 Requirements

5.1 Appearance quality

Flue fire extinguishing code: see table 1

Fire extinguishing agent storage type code: see table 1

Fire extinguishing agent category code: see table 1

Device code: Z (self)-automatic fire extinguishing equipment; C (kitchen) —— kitchen

manufacturer's logo

number of nozzles

Ga498-2114

5.1.1 All components of the device shall have no obvious machining defects or mechanical damage, and the external surfaces of the components shall be treated with anti-corrosion, and the anti-corrosion coating and coating shall be complete and uniform, and the fasteners shall not be loose.

5.1.2 The name, weight and expiration date of the fire extinguishing agent shall be marked on the front of the fire extinguishing agent storage container, and the handwriting shall be obvious and clear.

the name of the driving gas should also be marked on the driving gas cylinder.

5.1.3 The nameplate of the device shall be firmly set in the obvious position of the device, and shall be marked with product name, model specification, code of implementation standard

, storage pressure of pressure-storage fire extinguishing agent or gas storage pressure of driving gas cylinder, filling amount of fire extinguishing agent, use temperature range, production unit, production date, etc.

5.2 materials

5.2.1 the materials of seamless steel containers shall comply with the provisions of chapter 5 of GB5199, and the materials of welded steel containers shall comply with the provisions of chapter 5 of GB5111.

5.2.2 container valves, water flow valves, pressure reducing valves and nozzles should be made of stainless steel and copper alloy, and gas valves should be made of copper alloy and aluminum alloy, or other metal materials with strength and corrosion resistance not lower than the above materials.

5.2.3 elastic gaskets, sealants and related parts shall be made of materials that have been in contact with the corresponding extinguishing agent for a long time without damage or deformation.

5.2.4 the connecting pipe shall be made of materials resistant to the corrosion of the medium used. The connecting pipe should be high-pressure hose, or metal pipe with equivalent compressive strength and shock and vibration resistance.

5.2.5 The pipeline shall be made of seamless steel pipe with corrosion resistance. Pipe fittings should be made of corrosion-resistant metal materials, and iron castings are not allowed.

5.3 startup mode

5.3.1 The device shall have automatic, manual and mechanical emergency startup functions.

5.3.2 manual startup and mechanical emergency startup shall be equipped with safety devices to prevent misoperation, and the operation method shall be indicated with words or graphic symbols, and its release force shall be greater than 21N and less than 111N.

5.3.3 the operating force of the mechanical emergency operating mechanism shall meet the following requirements:

a) the manual operating force shall not be greater than 1.51n;

b) the finger pulling operation force should not be greater than 51 N；;

c) the pushing operation force should not be greater than 11 N；;

d) All manual operation displacements should not be greater than 311 mm.

5.4 linkage performance

5.4.1 devices are started in different ways, and their actions should be accurate, reliable and trouble-free.

5.4.2 the gas valve should be able to close immediately when the device is started.

5.4.3 after the fire extinguishing agent is completely sprayed after the device is started, the water flow valve should be able to start spraying water immediately. (device with water cooling function)

5.4.4 The control panel should be able to correctly display the working state of the device and issue fire control instructions.

5.4.5 there should be no leakage at all sealing parts of the device.

5.5 fire extinguishing performance

5.5.1 fire extinguishing performance of deep fryer and frying pan

The edible oil fire extinguishing test shall be carried out according to the test requirements and methods specified in 6.4.3 and 6.4.4, and the flame shall be completely extinguished after spraying. The flame can not be rekindled within 21 min, or the temperature of the oil in the pot should be lower than 33℃ of the self-ignition point of the oil itself.

5.5.2 Fire extinguishing performance of smoke hood and smoke exhaust pipe

Fire extinguishing test shall be conducted according to the test requirements and methods specified in 6.4.5 and 6.4.6, and the flame shall be extinguished after the device is sprayed. The temperature in the smoke exhaust pipe should drop sharply, and there should be no temperature rise. If a small amount of residual small flame is not extinguished, it should be able to extinguish itself without using fire extinguishing agent.

5.6 Splash performance

5.6.1 Splash performance during fire extinguishing

Ga498-2114

Splash test during fire extinguishing shall be conducted according to the test requirements and test methods specified in 6.5.2, and no burning oil shall splash out during fire extinguishing agent spraying when the device is started, that is, no burning oil spots shall exist outside the cooking vessel.

5.6.2 Splash performance at cooking temperature

Splash performance test at cooking temperature shall be conducted according to the method specified in 6.5.3, and no oil spots with a diameter greater than 4.8 mm shall splash out during the test.

5.7 Seismic performance

Carry out vibration test according to the method specified in 6.6, and no part of the container assembly shall be damaged structurally; The net weight loss of fire extinguishing agent in the fire extinguishing agent storage container assembly shall not be greater than 1.5% of the filling amount of fire extinguishing agent; The internal pressure loss of the pressure-storage fire extinguishing agent storage container assembly and the driving gas container assembly should not exceed 1.5% of the filling pressure; The alarm and fire extinguishing control functions of the control panel shall comply with the provisions of 5.15.2 and p>5.15.3.

5.8 Corrosion resistance

5.8.1 Salt spray corrosion resistance

Salt spray corrosion test shall be conducted according to the test method specified in 6.7.1, and there shall be no obvious corrosion damage to the container valve, water flow valve, gas valve, pressure reducing valve, nozzle, temperature sensor and its accessories. After the test, the sealing performance of container valve, water flow valve, gas valve and pressure reducing valve shall comply with the provisions of 5.11.1, and their valves shall be opened flexibly and accurately. The operating temperature of the temperature sensor shall comply with the provisions of 5.13.1.

5.8.2 ammonia stress corrosion resistance

The ammonia stress corrosion test shall be conducted according to the method specified in 6.7.2, and the container valve, water flow valve, gas valve, pressure reducing valve, nozzle and its accessories shall not be cracked or damaged. After the test, the strength of container valve, water flow valve, gas valve and pressure reducing valve shall comply with the provisions of 5.11.2.

5.8.3 Corrosion resistance of service medium

The container for storing fire extinguishing agent shall be subjected to internal corrosion test according to the test method specified in 6.7.3, and the internal coating of the container shall not fall off, crack or bubble after the test; If there is no coating inside, there should be no visible rust spots on the inner wall surface; And the extinguishing agent has no obvious discoloration phenomenon.

5.9 high and low temperature resistance

under normal working conditions, the device should be able to withstand the temperature test of the maximum working temperature and the minimum working temperature specified in 4.2.1 for 24 h respectively, and the start-up operation test should be carried out after the test, and the results should meet the requirements in 5.4.1. The alarm and fire extinguishing control functions of the control panel shall comply with the provisions of 5.15.2 and 5.15.3. The nozzle shall be tested for high temperature resistance according to the method specified in 6.8.2, and there shall be no deformation, crack or damage.

5.11 strength sealing performance

5.11.1 sealing performance

The pressure-storage fire extinguishing agent storage container assembly, driving gas container assembly, container valve, gas valve and pressure reducing valve shall be tested for air tightness according to the test method specified in 6.9.1.1, and the containers shall be free of leakage. The container valve should have no bubble leakage in the closed state; When the container valve is in the open state, the leakage of air bubbles at each connection sealing part should not exceed 11 per minute. Gas valves and pressure reducing valves shall be free of air bubble leakage. Non-pressure-storage fire extinguishing agent storage container components, water flow valves and connecting pipes shall be subjected to water pressure sealing test according to the test method specified by 6.9.1.2, and there shall be no leakage and visible deformation during the test. The test pressure is the maximum working pressure, and the pressure holding time is 5 min.

5.11.2 strength performance

the fire extinguishing agent storage container, driving gas container, container valve, gas valve, water flow valve, pressure reducing valve and connecting pipe shall be subjected to hydraulic strength test according to the test method specified in 6.9.2, and the containers shall not leak, and the residual deformation rate of their volumes shall not be greater than 3%. Container valves, gas valves, pressure reducing valves, water flow valves, connecting pipes and their accessories shall not leak, deform or be damaged. The test pressure is 1.5 times the maximum working pressure, and the pressure holding time is 5 min.

5.11.3 overpressure performance

ga498-2114 fire extinguishing agent storage container assembly, driving gas container assembly, gas valve, water flow valve and pressure reducing valve shall be subjected to hydraulic overpressure test according to the test method specified in 6.9.3, and there shall be no breakage. The test pressure is 3 times the maximum working pressure, and the pressure holding time is 5 min.

5.11 working reliability

The working reliability test shall be conducted according to the test method specified in 6.11. The container valve and its auxiliary control drive device, water flow valve and gas valve shall be flexible and reliable, and no fault or structural damage shall occur (except the parts that are allowed to be damaged during normal operation). After the test, the sealing performance of each valve shall comply with the provisions in 5.11.1.

5.12 nozzle

5.12.1 structure

The nozzle should be provided with a protective cap to prevent the nozzle from being blocked by foreign substances. The normal injection of the nozzle shall not be affected during injection.

5.12.2 Impact resistance

Carry out mechanical impact test according to the method specified in 6.11, and the nozzle shall not be deformed, cracked or damaged.

5.13 temperature sensor

5.13.1 operating temperature

the nominal operating temperature of the temperature sensor shall comply with the provisions in GB5135.1. The operating temperature shall be tested according to the method specified in 6.12.1, and shall not exceed the range specified in the following formula. X (1.135x+1.62) where: X-nominal operating temperature (given by the production unit in its product manual), in degrees Celsius (℃).

5.13.2 thermal stability

the temperature sensor should not act when it is tested according to the method specified in 6.12.2.

5.14 driver

5.14.1 driving force requirements

The driving force output by pneumatic driver should not be less than twice the required operating force under the maximum load condition at the lowest working temperature. The driving force of electromagnetic actuator should not be less than twice the required operating force under the maximum load condition. The output force of the detonating driver should not be less than the maximum load condition within the service life of the detonating component.