Performance introduction of water-based fire extinguisher

2021-09-15


Test standard for vehicle water-based fire extinguishers
Wheel-type water-based fire extinguisher: GB8109-2005
Main test items Main test items of firearms:
7.1 Injection performance test
7.1.1 Effective spraying time and spraying distance test
7.1.2 Temperature change resistance spray performance test
7.1.3 Intermittent injection performance test
7.2A fire extinguishing test
7.3 Class B fire extinguishing test
7. Sealing performance test
7. Driving performance test
7.6 Corrosion resistance test
7.6.1 External corrosion test
7.6. Internal corrosion test
Delivery inspection of vehicle water-based fire extinguisher
Before leaving the factory, the enterprise shall check the following test items for the controller:
The fire extinguisher shall be inspected by the technical inspection department of the manufacturer to ensure that the quality of the fire extinguisher meets the requirements of this standard.
Type test, import and export test and arbitration test shall be conducted according to the test methods specified in this standard.
The method of GB/T4351.3 shall be evaluated according to the sampling and inspection results of fire extinguishers.
Ex-factory inspection of fire extinguisher bottle
Delivery inspection
Inspection one by one: each bottle body shall be inspected one by one according to the items specified in Table 5.
Batch inspection: ex-factory bottles shall be subject to batch inspection according to the items specified in Table 5.
Sampling and re-inspection rules shall comply with the following provisions:
a) The material of the bottle body shall comply with the provisions of the corresponding standards and have the quality certificate;
b) The bottle body material shall be inspected according to 5. Three bottles shall be randomly selected according to the requirements of 3. 6.2 for various performance checks
One is used for material mechanical properties, metallography and bottom anatomy; The other shall be subject to bursting test; There is also a flattening test;
c) If the inspection result of the sampling bottle body does not meet the requirements, the unqualified items shall be re-inspected. If the re-inspection is still unqualified,
If it is confirmed that the disqualification is caused by heat treatment, this batch of bottles shall be allowed to undergo reheat treatment, but the number of repeated heat treatment shall not exceed two;
d) Batch inspection shall be carried out again for bottles subject to repeated heat treatment. The number, reason and conclusion of bottles subject to repeated heat treatment shall be indicated in the quality record.
Type inspection of vehicle water-based fire extinguisher
In case of any of the following circumstances, type inspection shall be carried out:
a) Newly designed bottle body
b) Change the original manufacturing process;
c) Change the bottle material;
d) Different heat treatment methods are used
e) Change the bottom structure of the bottle body, change the diameter of the bottle body, and design the wall thickness.
The type inspection items shall be carried out according to the provisions of Table 5. Among them, three representative bottles shall be selected for cyclic fatigue test. One of the following cases shall be selected for flattening test.
a) Change the material of the bottle body or the material performance fluctuates;
b) A batch of bottle bodies will resume production after 3 months of new production or intermittent production
c) Under normal production conditions, the bottle body shall undergo a flattening test every six months.
If the type inspection is unqualified, batch production is not allowed, and the bottle body is not allowed to be put into use.


Key word:

Fire extinguishers