1 Scope

This standard specifies the kitchen equipment fire extinguishing equipment (hereinafter referred to as the device) model, basic parameters, requirements, test methods, inspection rules, packaging, transportation, storage and instruction manual preparation requirements.

This standard applies to kitchen equipment fire extinguishing device.

2 normative references

The following documents in the provisions of this standard through the reference to become the terms of this standard. All subsequent change orders (excluding errata) or revisions of dated referenced documents do not apply to this standard; however, parties who have entered into agreements based on this standard are encouraged to investigate whether the latest versions of these documents may be used. Where a document is cited without date, the latest version applies to this standard.

GB5099-1994 Steel Seamless Gas Cylinders

GB5100-1994 Steel Welded Gas Cylinders

GB5135.1 Automatic Sprinkler Systems Part 1: Sprinkler Heads

GB9969.1 industrial product instruction manual general rules

GA400-2002 gas fire extinguishing systems and components performance requirements and test methods

3 Terminology and Definitions

The following terminology and definitions are applicable to this standard .

3.1 Kitchen equipment fire suppression devicerestaurantfiresuppressiondevice fixed installation in the kitchen and other high humidity and heat environment, by the extinguishing agent storage container components, drive gas container components, piping, nozzles, valves, valve actuators, fire detection components, control devices, etc., composed of the ability to automatically detect and implement the Box-type fire extinguishing device.

3.2 gas valve gasshutoffvalve installed in the kitchen stove gas pipeline, when the device can be immediately closed when the start of the valve.

3.3 waterflowvalve

Installed in the device pipeline and connected to the water source, when the device is activated to extinguish the fire agent can be opened immediately after the complete injection of the valve.

3.4 fire extinguishing agent storage container assembly agentstoragecontainerassembly

By the fire extinguishing agent containers, container valves, siphons, etc., used to encapsulate the fire extinguishing agent assembly.

3.5 driving gas container assembly expellantgascartridgeassembly consists of gas storage containers, container valves, etc. used to encapsulate and store driving gas assembly.

3.6 working pressure operativepressure stored-pressure extinguishing agent storage container assembly and drive gas container assembly according to the rated filling and pressurization in the environment at 20 ℃ after the equilibrium pressure.

3.7GA498-2004 maximum working pressure maximunworkingpressure stored-pressure extinguishing agent storage container components and drive gas container components according to the rated filling and pressurization in the maximum working temperature environment in the equilibrium pressure.

3.8Spray ratedischargerate the mass of extinguishing agent sprayed from the nozzle in a unit of time, kg/s.

4Model number and basic parameters

4.1Model number

Device model numbering is prepared in accordance with the following provisions.

ZC××××/×

Table 1 Designation

Fire extinguishing agent category designation designation designation designation of fire extinguishing agent storage type designation of flue fire extinguishing designation

Water-type foam other storage pressure type storage cylinder driven type with flue fire extinguishing function not with flue fire extinguishing function

SPQZ is not labeled Y is not labeled

Example: ZCPZY8 indicates that 8 nozzles have a flue fire extinguishing function of the storage pressure foam fire extinguishing agent kitchen equipment fire extinguishing device.

4.2 Basic Parameters

4.2.1 Operating Temperature Range

The working temperature range of the device: 0 ℃ ~ 55 ℃ when the product design working temperature range exceeds the above temperature limits, should be made in the product labeling of the obvious permanent sign.

4.2.2 Working Pressure

According to the extinguishing agent storage type, by the production unit to give the storage pressure device or storage cylinder driven device working pressure.

5 Requirements

5.1 Appearance quality

Flue extinguishing designator: see table 1

Fire extinguishing agent storage type designator: see table 1

Fire extinguishing agent category designator: see table 1

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

Manufacturer's identification

Number of nozzles

GA498 -2004

5.1.1 device components should be no obvious processing defects or mechanical damage, the external surface of the components shall be anticorrosion treatment, anticorrosion coating

Layer, plating should be complete and uniform, fasteners should be no loosening.

5.1.2 fire extinguishing agent storage containers should be labeled on the front of the appearance of the name of the fire extinguishing agent, weight and expiration date, the handwriting should be obvious and clear.

Driven gas cylinders should also be labeled with the name of the driving gas.

5.1.3 device nameplate should be firmly set in the obvious parts of the device, and should be labeled with the product name, model specifications, the implementation of the standard

Code, stored pressure extinguishing agent storage pressure or drive the gas cylinder gas storage pressure, the amount of extinguishing agent, the use of the temperature range, the unit of production, date of delivery and other content.

5.2 Materials

5.2.1 Steel seamless container materials should be consistent with the provisions of Chapter 5 of GB5099, steel welded container materials should be consistent with the provisions of Chapter 5 of GB5100.

5.2.2 container valves, water flow valves, pressure reducing valves, nozzles should be made of stainless steel, copper alloy, gas valves should be made of copper alloy, aluminum alloy, but also can be used for strength, corrosion resistance is not less than the above material of other metal materials.

5.2.3 elastic gaskets, sealants and related components should be used for long-term contact with the corresponding extinguishing agent without damage or deformation of the material manufacturing.

5.2.4 Connection pipe should be selected to use media corrosion-resistant materials. Connection pipe should be used for high-pressure hose, can also be used for pressure strength, shock vibration resistance of comparable metal tubing.

5.2.5 pipeline should be seamless steel pipe, the material should have corrosion resistance. Pipe fittings should be made of corrosion-resistant metal materials, shall not use cast iron parts.

5.3 Start-up mode

5.3.1 The device shall have automatic, manual and mechanical emergency start-up function.

5.3.2 Manual start and mechanical emergency start should have a safety device to prevent malfunction, and use text or graphic symbols to indicate the method of operation, and its release force should be greater than 20N, less than 100N.

5.3.3 Mechanical emergency operation mechanism operating force should meet the following requirements:

a (a) The manual operation force shall not be greater than 150N;

b) The finger pull operation force shall not be greater than 50N;

c) The finger push operation force shall not be greater than 10N;

d) All the manual operation displacements shall not be greater than 300mm.

5.4 Linkage Performance

5.3.4 Linkage Performance<

5.4.1 The device is started in different ways, and its operation should be accurate, reliable and trouble-free.

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

5.4.3 device start-up extinguishing agent completely sprayed, the water flow valve should be able to immediately open the water spray. (With water cooling function of the device)

5.4.4 control panel should be able to correctly display the working status of the device, send out fire control instructions.

5.4.5 The sealing parts of the device should not leak.

5.5 fire extinguishing performance

5.5.1 deep fryer and wok fire extinguishing performance

According to the test requirements and test methods specified in 6.4.3, 6.4.4 cooking oil fire extinguishing test, the device sprayed after the flame should be completely extinguished. Flame extinguished within 20min can not appear re-ignition, or the temperature of the grease in the pot should be lower than the spontaneous combustion point of the grease itself 33 ℃.

5.5.2 Smoking hood and exhaust pipe fire extinguishing performance

According to the test requirements and test methods stipulated in 6.4.5 and 6.4.6 for fire extinguishing test, the flame shall be extinguished after the device is sprayed. The temperature in the smoke pipe should drop sharply and there should be no temperature rebound. If a small amount of residual small flame is not extinguished, it should be able to extinguish itself without the use of extinguishing agent.

5.6 Splash performance

5.6.1 Splash performance when extinguishing the fire

GA498-2004

According to the test requirements and test methods stipulated in 6.5.2 to carry out the splash test when extinguishing the fire, the device Start the fire extinguishing agent spraying process shall not have burning oil splash out, that is, outside the cooking utensils shall not have burning oil spots exist.

5.6.2 Cooking temperature splash performance

According to the method specified in 6.5.3 cooking temperature splash performance test, the test shall not be greater than the diameter of the 4.8mm oil splash out.

5.7 Vibration resistance

Vibration test in accordance with the method specified in 6.6, any part of the container assembly shall not be structurally damaged; extinguishing agent storage container assembly of the extinguishing agent net loss shall not be greater than 0.5% of the extinguishing agent charging capacity; pressure storage type extinguishing agent storage container assembly and driving gas container assembly internal pressure loss shall not exceed the filling pressure of 1.5%. Loss of pressure loss shall not exceed 1.5% of the filling pressure; the alarm and fire extinguishing control function of the control panel shall comply with the provisions of 5.15.2 and

5.15.3.

5.8 Corrosion resistance

5.8.1 Salt spray corrosion resistance

Salt spray corrosion test according to the test method specified in 6.7.1, container valves, water flow valves, gas valves, pressure reducing valves, nozzles, sensors and their accessories shall not be obvious corrosion damage. After the test container valve, water flow valve, gas valve and pressure reducing valve sealing performance should be consistent with the provisions of 5.10.1, the valve should be flexible and accurate opening. The action temperature of the thermostat shall comply with the provisions of 5.13.1.

5.8.2 Ammonia stress corrosion resistance

Ammonia stress corrosion test shall be conducted in accordance with the method stipulated in 6.7.2, and there shall be no cracks or damages on the container valves, water flow valves, gas valves, pressure reducing valves, nozzles and their accessories. The strength of container valve, water flow valve, gas valve and pressure reducing valve after the test shall comply with the provisions of 5.10.2.

5.8.3 Resistance to corrosive properties of the medium used

Storage of fire extinguishing agent containers should be in accordance with the test methods specified in 6.7.3 internal corrosion test, after the test containers should not be peeling off the internal coating, cracking and bubbles and other phenomena; if there is no internal coating, there should be no visible rust spots on the surface of the inner wall; and the extinguishing agent has no obvious discoloration phenomenon.

5.9 High and low temperature resistance

Device in normal operating conditions, should be able to withstand the maximum operating temperature and the minimum operating temperature specified in 4.2.1 each 24h temperature test, test after the test start-up operation test, and the results should be consistent with the provisions of 5.4.1. The alarm and fire extinguishing control function 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 shall not be deformed, cracked or damaged.

5.10 Strength sealing performance

5.10.1 Sealing performance

Pressure-storage type fire extinguishing agent storage container assembly, driving gas container assembly, container valve, gas valve, pressure reducing valve according to the test method specified in 6.9.1.1 to carry out the airtightness test, the container should be no leakage. Container valve shall have no bubble leakage under closed state; the bubble leakage of each connection sealing part of container valve under open state shall not exceed 10 per minute. Gas valve, pressure reducing valve should be no bubble leakage. Non-pressure extinguishing agent storage container components, water flow valve, connecting pipe according to the test method specified in 6.9.1.2 hydraulic sealing test, the test should not leakage and visible deformation. The test pressure is the maximum working pressure, and the pressure holding time is 5min.

5.10.2 Strength performance

Fire extinguishing agent storage containers, driving gas containers, container valves, gas valves, water flow valves, pressure reducing valves, connecting pipes are subjected to hydraulic strength test in accordance with the test methods specified in 6.9.2, and the containers shall not leak and their The residual deformation rate of the volume shall not be more than 3%. Container valves, gas valves, pressure reducing valves, water flow valves, connecting pipes and their accessories shall not leak, deform or be damaged. Test pressure is 1.5 times the maximum working pressure, pressure holding time is 5min.

5.10.3 overpressure performance

GA498-2004 fire extinguishing agent storage container components, drive gas container components, gas valves, water flow valves, pressure reducing valves in accordance with the test method specified in 6.9.3 hydraulic overpressure test, shall not be more than 3%. Method of hydraulic overpressure test, there shall be no rupture. The test pressure is 3 times the maximum working pressure, the pressure holding time is 5min.

5.11 Work Reliability

Working Reliability Test according to the test method specified in 6.10, the container valve and its auxiliary control and driving device, the water flow valve, the gas valve should be flexible and reliable, there shall be no malfunctions or structural damage (except for parts that are allowed to be damaged during normal operation). Except for the parts allowed to be damaged during normal operation), the sealing performance of each valve after the test shall comply with the provisions of 5.10.1.

5.12 Nozzle

5.12.1 Structure

Nozzle should be equipped with a protective cap to prevent the nozzle hole from being blocked by external substances. Spraying shall not interfere with the normal spraying of the nozzle.

5.12.2 Impact resistance

Mechanical impact test according to the method specified in 6.11, the nozzle shall not be deformed, cracked or damaged.

5.13 Thermostat

5.13.1 Action temperature

The nominal action temperature of the thermostat should be in accordance with the provisions of GB5135.1. Its action temperature according to the method specified in 6.12.1 test, should not exceed the range specified in the following formula. x ± (0.035X + 0.62) where: X - nominal action temperature (given by the production unit in its product specification), the unit is degrees Celsius (℃).

5.13.2 Thermal stability

The thermostat should not be operated when tested according to the method specified in 6.12.2.

5.14 Actuator

5.14.1 Driving force requirement

The driving force output from the pneumatic type actuator shall not be less than twice the operating force required under maximum load conditions at the lowest operating temperature. Electromagnetic type actuator driving force should not be less than twice the required operating force under maximum load conditions. Detonation type drive in the detonation parts use the validity of the drive output force should not be less than three times the maximum load conditions required to operate force.

d) Mechanical actuator drive force should not be less than twice the required operating force under maximum load conditions.

5.14.2 Requirements for operating reliability

Reliability test in accordance with the method specified in 6.10.4, the drive action should be accurate and flexible, and there shall not be any failure or structural damage (except for parts allowed to be damaged during normal operation). The reduction in drive power after the test shall not exceed 10% of that before the test.

5.15 control panel

5.15.1 Power requirements

The main power supply of the control panel should be able to work reliably under the condition that the voltage is 220V±33V and 50Hz. Control panel backup power supply capacity should meet the normal monitoring state of continuous operation for 24h, during which the device should be guaranteed to start reliably. Main and standby power supply should be working instructions.

5.15.2 Alarm Function

The control panel should be able to receive the fire alarm signal from the thermistor, sound and light alarm signal. Under the rated operating voltage, 1m away from the control panel, the sound pressure level (A-weighted) of the internal and external audio devices should be 65dB and 85dB or more than 115dB or less, respectively.

The control panel should have its own (including detection, control loop) fault alarm function.

5.15.3 control function

GA498-2004

5.15.3.1 The control panel should be automatic, manual start fire extinguishing device function, the automatic state, the manual state should be clearly marked and can be converted to each other. Whether the control panel in automatic or manual state, manual operation start must always be effective.

5.15.3.2 control panel should be delayed start function, delay time 0 ~ 30s adjustable.

5.15.3.3 The control panel should have "emergency interrupt" control, the button should be placed in easy to operate parts.

5.15.3.4 The control panel should have a fire extinguishing device after the start of the feedback signal and fuel valve shutdown signal display function.

5.15.3.5 The control panel shall provide contacts to control external equipment.

5.15.4 Voltage withstand performance

The voltage withstand performance between the terminals of the control panel and the enclosure shall be tested in accordance with the method stipulated in 6.14.3, and there shall be no surface flying arcs, sweeping discharges, corona, or breakdown phenomena.

When the rated working voltage is greater than 50V, the test voltage is 1500V (rms), 50Hz; when the rated working voltage is less than or equal to 50V, the test voltage is 500V (rms), 50Hz.

5.15.5 Insulation Requirements

Under normal atmospheric conditions

5.15.5 Insulation requirements

5.15.5 Insulation requirements

5.15.6 Damp heat resistance

Control panels in the normal state of monitoring, the control panel should be able to withstand a temperature of 40 ° C ± 2 ° C, relative humidity of 90% to 95%, 24h constant Damp heat test. Alarm control function of the control panel after the test shall comply with the provisions of 5.15.2 and 5.15.3.

5.16 Pressure Reducing Characteristics of Pressure Reducing Valve

According to the test method specified in 6.15, the pressure reducing characteristics of the pressure reducing valve measured within the specified flow rate compared with the published value of the production unit, the deviation value should not be more than ± 10% of the published value.

6 test methods

The performance test of the device and components should be based on the design drawings of the sample being examined and the relevant technical conditions, in accordance with the test methods specified in this standard. Any components of the air tightness test items, should be carried out after the hydraulic strength test. Unless otherwise specified, the tests shall be conducted under normal atmospheric conditions, i.e.

Ambient temperature: 15℃~35℃;

Relative humidity: 45%~75%;

Atmospheric pressure: 86kPa~106kPa.

6.1 Appearance Inspection

6.1.1 Against the design drawings and related technical documents and information, visual inspection or checking with general-purpose measuring instruments, the model of the device under test, the range of operating temperatures and other basic parameters should be consistent with the provisions of Chapter 4.

6.1.2 Visual inspection of the device under test, the content of the sign, component marking, and processing, coating quality should be consistent with the provisions of 5.1.

6.2 Manual operation test

The valve under test is at maximum working pressure, and the accuracy of the force gauge shall be not less than 2.5 grade. The mechanical emergency operation mechanism of the valve under test is connected to the force gauge, and the valve under test is started through the force gauge. Record the maximum operating force, measure and record the maximum operating stroke. The test results shall comply with the provisions of 5.3.

6.3 device linkage test

The test should be at 20 ℃ ± 5 ℃ under the environmental conditions, each time before the test to check whether the device is well installed, in accordance with the design drawings provided by the production unit, assembling a device including all the constituent parts.

6.3.1 Automatic control of the state of the linkage test

To the thermistor to impose a fire simulation signal to the control panel to send out a fire command to stop, so that the control panel to automatically start the fire extinguishing device of the GA498-2004 drive, open the fire extinguishing agent storage container valve spraying fire extinguishing agent. During and after the test, the device is checked, the results should be consistent with the provisions of 5.4. The test can be carried out simultaneously with 6.5 splash test.

6.3.2 Linkage test under manual control

The control panel switch from "automatic" to "manual" on the thermostat to impose a fire simulation signal so that the control panel sends out a fire extinguishing signal for 1min. Fire extinguishing signal for 1min, the driver of the fire extinguishing device should not automatically start, press the manual button by hand to start the driver, open the fire extinguishing agent storage container valve spray extinguishing agent. During and after the test, the device shall be inspected and the results shall comply with 5.4. The test can be conducted simultaneously with 6.4 fire extinguishing test or 6.5 splash test.

6.3.3 Linkage test under mechanical emergency operation

Activate the mechanical emergency operation mechanism so that the extinguishing agent storage container valve is operated to spray extinguishing agent. During and after the test, the device is inspected and the results shall comply with 5.4. The test can be conducted simultaneously with 6.4 fire extinguishing test or 6.5 splash test.

6.4 Fire extinguishing test

6.4.1 Preparation for the test

a) The test shall be conducted indoors. The ambient temperature is 0°C to 55°C.

b)Before the test, the fire extinguishing agent storage container assembly and the driving gas container assembly, which are filled according to the rated charge and working pressure, shall be placed at the lowest storage temperature for more than 16h.

c)Device piping, fittings, extinguishing agent charge, nozzle arrangement, the number of nozzles and installation height and other values should be installed in accordance with the production unit to provide the design drawings and instructions.

d)Nozzles should be installed according to the maximum installation height and the most unfavorable angle allowed in the design instructions.

e)The test shall be conducted under the conditions of maximum pipe diameter, maximum number of branches, and longest line allowed by the unit design.

f)The test cooker shall be placed below a nozzle at the most unfavorable point, i.e., below the minimum spray rate nozzle.

g) Temperature measurements are made by a thermocouple submerged in grease.

6.4.2 Test of nozzle spray rate

The device will be installed in accordance with the design drawings provided by the production unit and the instructions for use, and a container used to collect extinguishing agent will be placed under each nozzle to start the device, and the containers with extinguishing agent will be weighed under each nozzle when the extinguishing agent is finished being sprayed and the extinguishing agent will be weighed separately. The container with the smallest weight of extinguishing agent corresponds to the nozzle for the minimum spray rate nozzle; the container with the largest weight of extinguishing agent corresponds to the nozzle for the maximum spray rate nozzle. This test can be conducted simultaneously with the linkage test.

6.4.3 deep fryer oil fire extinguishing test

6.4.3.1 the size of the test cooker by the production unit in the design drawings and instructions for the use of the provision of the depth of the pot should be not less than 230mm; the heating source of natural gas stove or propane stove; the fuel medium for the spontaneous combustion point of not less than 357 ℃ cooking oil.

6.4.3.2 Add cooking oil to the test pot, so that the oil surface from the pot edge 76mm (oil surface measurement should be carried out when the oil is heated to 288 ° C ~ 315 ° C); and then place the thermocouple in the oil surface 25mm below the pot edge of the side wall at 76mm, turn on the temperature instrumentation, so that it is in the normal operating state. Turn on the heating source to the maximum, so that the oil heating rate is not less than 7 ℃ / min, under these conditions heating to cooking oil spontaneous combustion, combustion of cooking oil temperature is greater than 363 ℃ to start timing, continued for 2min, close the gas valve, manually start the fire extinguishing device to extinguish the fire.

6.4.3.3 Observe and record the temperature change of cooking oil in the test pot; fire extinguishing device injection delay time and injection time; extinguishing

Time; test results should be consistent with the provisions of 5.5.1.

6.4.4 Stir-fry pan oil fire extinguishing test

6.4.4.1 test cooker for the largest and smallest size of the two stir-frying pans (by the production unit in accordance with the decision of the product design); the heating source is a natural gas stove or propane stove; the fuel medium for the spontaneous combustion point of not less than 357 ℃ cooking oil.

6.4.4.2 Place the smallest sized wok on the stove at the most unfavorable point of the fire extinguishing device, and the largest sized wok on the stove adjacent to its GA498-2004 counterpart.

6.4.4.3 Add edible salad oil to the two test pots, so that the oil surface is 76mm from the edge of the pot, and from the bottom of the pot is not less than 25mm (oil

Surface height measurements should be carried out when the oil is heated to 288 ° C to 315 ° C); and then placed in the oil surface of the thermocouples under the surface of the 13mm from the pot along the side wall of the 76mm, open the temperature measurement Instrumentation, so that it is in a normal working condition. Turn on the heating source to the maximum, heating to cooking oil spontaneous combustion, combustion of cooking oil temperature is greater than 363 ℃ when the start of the timer, continued for 2min, close the gas valve, manually start the fire extinguishing device to extinguish the fire.

6.4.4.4 Observe and record the temperature change of cooking oil in the test pot; the delay time and spray time of the fire extinguishing device spray; extinguish the fire

Time; the results of the test shall be in accordance with the provisions of 5.5.1.

6.4.5 Fire extinguishing test of smoking hoods and smoke exhaust ducts

6.4.5.1 The structure and dimensions of the smoking hoods and smoke exhaust ducts shall be given by the manufacturing units in the design drawings and instruction manuals. The fire extinguishing test shall be conducted in accordance with the maximum value specified therein.

6.4.5.2 This test shall be carried out at the same time as the deep fryer oil fire extinguishing test. After arranging the piping and nozzles according to the design drawings and instruction manual of the manufacturing unit, the test fuel (vegetable oil or animal oil) shall be evenly sprayed or coated on the inner surfaces of the smoking hood (filter) and the smoke exhaust pipe, and the quantity of spraying for the smoke exhaust pipe shall be 1.5kg/m2, and the quantity of spraying for the smoking hood (filter) shall be 3.7kg/m2.

6.4. 5.3 Set two thermocouples inside the smoke exhaust pipe, and the arrangement of thermocouples should be in the center of the smoke exhaust pipe section and connected with the temperature measuring instrument, and open the temperature measuring instrument so that it is in normal working condition.

6.4.5.4 Light the deep fryer oil fire at the same time, by the hand-held natural gas burner or propane burner to ignite the smoking hood and smoke exhaust pipe, at this time you can turn on the fan to help combustion. When the thermocouple temperature is greater than 871 ℃, that is, ignition is successful. The ignition source should be turned off immediately after the fire is ignited, and the fan should be turned off at the same time.

6.4.5.5 When the temperature of the thermocouple in the exhaust pipe is stabilized at 482 ℃ or more, close the end of the exhaust pipe and start timing, at this time, the deep fryer should be full of flames, and then manually activate the device to extinguish the fire after 30s. Test results should be consistent with the provisions of 5.5.2.

6.4.5.6 Repeat 6.4.5.1 to 6.4.5.4 test, when the temperature of the thermocouple in the exhaust pipe is stabilized at 482 ℃ or more, so that the end of the exhaust pipe is always open and start timing, at this time, the deep fat fryer should be full of flames, 30s after manually start the device to extinguish the fire. The test results shall comply with the provisions of 5.5.2.

6.4.6 Ventilation and fire extinguishing test of smoking hood and smoke exhaust pipe

Ventilation and fire extinguishing test is conducted on the basis of the above test conditions, and the end of the smoke exhaust pipe is opened with