CN109185692B - Fire extinguishing agent filling equipment - Google Patents
Fire extinguishing agent filling equipment Download PDFInfo
- Publication number
- CN109185692B CN109185692B CN201811120189.2A CN201811120189A CN109185692B CN 109185692 B CN109185692 B CN 109185692B CN 201811120189 A CN201811120189 A CN 201811120189A CN 109185692 B CN109185692 B CN 109185692B
- Authority
- CN
- China
- Prior art keywords
- extinguishing agent
- valve
- fire extinguisher
- fire extinguishing
- filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 133
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 127
- 238000003860 storage Methods 0.000 claims abstract description 89
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 60
- 230000001105 regulatory effect Effects 0.000 claims abstract description 39
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 230000003584 silencer Effects 0.000 claims abstract description 11
- 230000001276 controlling effect Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 7
- 238000005429 filling process Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/023—Special adaptations of indicating, measuring, or monitoring equipment having the mass as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0192—Propulsion of the fluid by using a working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/07—Applications for household use
- F17C2270/0754—Fire extinguishers
Abstract
The invention discloses a fire extinguishing agent filling device which can fill fire extinguishing agents into a fire extinguisher. The device comprises a nitrogen source interface, a filter, a nitrogen source pressure gauge, a nitrogen three-way valve, a fire extinguisher pressurization pressure regulating valve, a fire extinguisher pressurization pressure gauge, a fire extinguisher storage tank pressurization pressure regulating valve, a fire extinguisher storage tank pressurization pressure gauge, a fire extinguisher storage tank pipeline exhaust valve, a fire extinguisher storage tank outlet pressure gauge, a fire extinguisher storage tank air inlet interface, a fire extinguisher storage tank air outlet interface, a fire extinguisher-vacuumizing-filling three-way valve, a vacuum gauge, a vacuum pump, an exhaust silencer, an exhaust port, a filling quality controller, a pneumatic actuating mechanism, a limit switch, a weighing device, a fire extinguisher pressurization valve, an exhaust valve, a proportional unloading valve and a fire extinguisher interface. Compared with the prior art, the invention can vacuumize the fire extinguisher before filling, can automatically reduce the pressure in the fire extinguisher when the filling pressure of the fire extinguisher exceeds a set value, and can automatically control the quality of the filled fire extinguishing agent according to the set value.
Description
Technical Field
The invention relates to the technical field of fire extinguishment, in particular to fire extinguishing agent filling equipment.
Background
After the fire extinguisher is used, the fire extinguishing agent needs to be refilled. The design and performance of the fire suppressant charging device directly affects the accuracy of the charged fire suppressant dose, the operation and safety of the charging process.
The existing fire extinguishing agent filling equipment, such as the device described in the Chinese patent 'an aviation fire extinguisher ground filling device and a using method thereof' (CN 107398054A), cannot carry out vacuumizing operation before filling on the fire extinguisher, does not provide a technical method for accurately controlling the filling quality of the fire extinguishing agent, and lacks technical measures for ensuring that the filling pressure of the fire extinguisher does not exceed a set value.
The invention can fill fire extinguishing agent into the fire extinguisher, can carry out vacuumizing operation on the fire extinguisher before filling the fire extinguishing agent, can more accurately control the quality of the filled fire extinguishing agent, and effectively prevent filling higher pressure into the fire extinguisher.
Disclosure of Invention
In order to meet the need of accurately and safely filling fire extinguishing agent into a fire extinguisher, the present invention proposes a fire extinguishing agent filling apparatus. The invention can solve the problems that the prior fire extinguishing agent filling technical scheme cannot vacuumize before filling, the quality control technology of the filled fire extinguishing agent is behind, and the technical measures for effectively preventing the fire extinguisher from being filled with higher pressure are lacked.
The invention adopts the technical scheme that: a fire suppressant charging apparatus comprising: the fire extinguishing agent storage tank comprises a nitrogen source interface, a filter, a nitrogen source pressure gauge, a nitrogen three-way valve, a fire extinguisher pressurization pressure regulating valve, a fire extinguisher pressurization pressure gauge, a fire extinguishing agent storage tank pressurization pressure regulating valve, a fire extinguishing agent storage tank pressurization pressure gauge, a fire extinguishing agent storage tank pipeline exhaust valve, a fire extinguishing agent storage tank outlet pressure gauge, a fire extinguishing agent storage tank air inlet interface, a fire extinguishing agent storage tank air outlet interface, a fire extinguishing agent-vacuumizing-filling three-way valve, a vacuum gauge, a vacuum pump, an exhaust silencer, an exhaust port, a filling quality controller, a pneumatic actuator, a limit switch, weighing equipment, a fire extinguisher pressurization valve, an exhaust valve, a proportional unloading valve and a fire extinguisher interface, wherein the nitrogen source interface is connected with the filter; the filter is connected with the end 1 of the nitrogen three-way valve; a nitrogen source pressure gauge is arranged on a pipeline connected with the filter and the nitrogen three-way valve; the 2 end of the nitrogen three-way valve is connected with the high pressure side of the pressurizing and pressure regulating valve of the fire extinguisher; the 3 end of the nitrogen three-way valve is connected with a pressurizing and pressure regulating valve of the fire extinguishing agent storage tank; the low pressure side of the fire extinguisher pressurizing pressure regulating valve is connected with the fire extinguisher pressurizing valve; the fire extinguisher pressurizing pressure gauge is arranged on a pipeline between the low pressure side of the pressurizing nitrogen pressure regulating valve and the fire extinguisher pressurizing valve; the fire extinguishing agent storage tank pressurizing pressure regulating valve, the fire extinguishing agent storage tank pressurizing pressure gauge, the fire extinguishing agent storage tank air inlet port and the fire extinguishing agent storage tank pipeline exhaust valve are connected through a four-way pipeline; the exhaust valve of the fire extinguishing agent storage tank pipeline, the pressure gauge at the outlet of the fire extinguishing agent storage tank, the outlet port of the fire extinguishing agent storage tank and the end 2 of the fire extinguishing agent-vacuumizing-filling three-way valve are connected through a four-way pipeline; the 3 end of the fire extinguishing agent-vacuumizing-filling three-way valve is sequentially connected with a vacuum pump, an exhaust silencer and an exhaust port through pipelines; the vacuum meter is arranged on a pipeline between the end of the fire extinguishing agent-vacuumizing-filling three-way valve 3 and the vacuum pump; the fire extinguisher pressurizing valve, the exhaust valve and the fire extinguishing agent-vacuumizing-filling three-way valve are communicated with the fire extinguisher connector at the 1 end; the air inlet of the proportional unloading valve is arranged on a pipeline connected with the fire extinguisher pressurizing valve and the fire extinguisher connector, and the air outlet is arranged on a pipeline connected with the exhaust valve and the exhaust silencer; the weighing equipment outputs an electric signal to the filling quality controller, and the filling quality controller is connected with the pneumatic actuating mechanism and the limit switch through an electric circuit; the pneumatic actuating mechanism is arranged on a valve rod of the fire extinguishing agent-vacuumizing-filling three-way valve, wherein:
the nitrogen source interface is used for being connected with a nitrogen source for providing pressure;
the filter is used for filtering out particulate impurities in the nitrogen gas stream;
the pressurized nitrogen pressure gauge is used for measuring the pressure of a nitrogen source;
the nitrogen three-way valve is used for selectively switching the flow of nitrogen gas to a fire extinguisher or a fire extinguishing agent storage tank, the valve can be turned off, namely the end 1, the end 2 and the end 3 are not communicated with each other, the end 1 of the valve can also be respectively communicated with the end 2 or the end 3, but the end 2 and the end 3 of the valve cannot be communicated with each other;
the pressure regulating valve is used for regulating the pressure of pressurized nitrogen gas filled into the fire extinguisher;
the fire extinguisher pressurizing pressure gauge is used for displaying the pressure of pressurizing nitrogen filled into the fire extinguisher;
the fire extinguishing agent storage tank pressurizing and pressure regulating valve is used for regulating the pressure of pressurized nitrogen filled in the fire extinguishing agent storage tank;
the fire extinguishing agent storage tank pressurizing pressure gauge is used for displaying the pressure of pressurized nitrogen filled in the fire extinguishing agent storage tank;
the exhaust valve of the fire extinguishing agent storage tank pipeline is used for exhausting the pressure in the connecting pipeline of the fire extinguishing agent storage tank and the filling equipment when the fire extinguishing agent storage tank is replaced and the filling is finished;
the fire extinguishing agent storage tank outlet pressure gauge is used for displaying the pressure of the fire extinguishing agent output by the fire extinguishing agent storage tank;
the fire extinguishing agent storage tank air inlet port is used for connecting a fire extinguishing agent storage tank pressurizing air inlet valve;
the fire extinguishing agent storage tank air outlet interface is used for connecting an air outlet valve of the fire extinguishing agent storage tank;
the fire extinguishing agent-vacuumizing-filling three-way valve is used for switching the airflow flowing direction of the fire extinguisher filling fire extinguishing agent and the fire extinguisher vacuumizing, the valve can be switched off, namely the 1 end, the 2 end and the 3 end are not communicated with each other, the 1 end of the valve can be respectively communicated with the 2 end or the 3 end, but the 2 end and the 3 end of the valve cannot be communicated with each other;
the vacuum gauge is used for displaying the vacuum degree in the fire extinguisher during vacuumizing;
the vacuum pump is used for vacuumizing the fire extinguisher;
the exhaust silencer is used for eliminating noise during exhaust;
the exhaust port is used for exhausting gas in the filling equipment pipeline;
the filling quality controller is used for setting the quality of the filling fire extinguishing agent;
the pneumatic actuating mechanism is used for controlling the opening state of the fire extinguishing agent-vacuumizing-filling three-way valve;
the limit switch is used for displaying the opening state of the three-way valve for extinguishing agent-vacuumizing-filling;
the weighing equipment is used for weighing the mass of the filled fire extinguishing agent;
the fire extinguisher pressurizing valve is used for controlling filling nitrogen into the fire extinguisher so as to pressurize the fire extinguisher;
the exhaust valve is used for controlling the exhaust of the gas in the equipment pipeline;
the proportional unloading valve is used for automatically releasing pressure when the pressure is too high in the filling process of the fire extinguisher;
the fire extinguisher connector is used for being connected with a fire extinguisher filling valve.
The proportional unloading valve can be selected according to the filling pressure of the fire extinguisher, and the pressure of the proportional unloading valve is equal to the maximum filling pressure of the fire extinguisher.
The filling quality controller inputs the mass of the fire extinguishing agent to be filled into the fire extinguisher, and controls the pneumatic execution structure to open and close the fire extinguishing agent-vacuumizing-filling three-way valve according to the set filling quality, so as to control the filling process.
The vacuum pump is connected to the filling pipeline of the fire extinguisher, and the function of filling the fire extinguishing agent and the vacuumizing function are switched through the three-way valve.
Wherein, the pipeline connecting each valve assembly should be as short as possible without affecting the maintenance of the equipment.
Compared with the prior art, the invention has the advantages that:
(1) The invention can solve the problems that the prior fire extinguishing agent filling technical scheme can not vacuumize before filling, can automatically control the weight of the filled fire extinguishing agent, and lacks technical measures for effectively preventing the fire extinguisher from being filled with higher pressure, and the like.
(2) The invention can solve the problem of more residual gas in the pipeline in the prior fire extinguishing agent filling technical scheme, reduce the waste of gas and reduce the environmental pollution possibly caused.
Drawings
Fig. 1 is a schematic diagram of a fire extinguishing agent charging device according to the present invention, wherein 1 is a nitrogen source interface, 2 is a filter, 3 is a nitrogen source pressure gauge, 4 is a nitrogen three-way valve, 5 is a fire extinguisher pressurization pressure regulating valve, 6 is a fire extinguisher pressurization pressure gauge, 7 is a fire extinguishing agent tank pressurization pressure regulating valve, 8 is a fire extinguishing agent tank pressurization pressure gauge, 9 is a fire extinguishing agent tank pipeline exhaust valve, 10 is a fire extinguishing agent tank outlet pressure gauge, 11 is a fire extinguishing agent tank air inlet interface, 12 is a fire extinguishing agent tank air outlet interface, 13 is a fire extinguishing agent-vacuumizing-charging three-way valve, 14 is a vacuum gauge, 15 is a vacuum pump, 16 is an exhaust silencer, 17 is an exhaust port, 18 is a charging mass controller, 19 is a pneumatic actuator, 20 is a limit switch, 21 is a weighing device, 22 is a fire extinguisher pressurization valve, 23 is an exhaust valve, 24 is a proportional unloading valve, 25 is a fire extinguisher interface, 26 is a nitrogen source, 27 is a nitrogen source interface valve, 28 is a fire extinguishing agent tank pressurization air inlet valve, 29 is a fire extinguishing agent tank air outlet valve, 30 is a fire extinguishing agent tank air outlet valve, 14 is a fire extinguishing agent charging valve, 32 is a fire extinguishing agent tank air inlet, 16 is a fire extinguishing agent charging valve, 16 is a fire extinguishing agent charging device, and 32 is a fire extinguishing agent charging device.
Detailed Description
The invention will be further illustrated by way of example with reference to the accompanying drawings, but the scope of the invention is not limited to this arrangement.
As shown in figure 1, the fire extinguishing agent filling equipment comprises a nitrogen source interface, a filter, a nitrogen source pressure gauge, a nitrogen three-way valve, a fire extinguisher pressurizing pressure regulating valve, a fire extinguisher pressurizing pressure gauge, a fire extinguishing agent storage tank pressurizing pressure regulating valve, a fire extinguishing agent storage tank pressurizing pressure gauge, a fire extinguishing agent storage tank pipeline exhaust valve, a fire extinguishing agent storage tank outlet pressure gauge, a fire extinguishing agent storage tank air inlet interface, a fire extinguishing agent storage tank air outlet interface, a fire extinguishing agent-vacuumizing-filling three-way valve, a vacuum gauge, a vacuum pump, an exhaust silencer, an exhaust port, a filling quality controller, a pneumatic executing mechanism, a limit switch, weighing equipment, a fire extinguisher pressurizing valve, an exhaust valve, a proportional unloading valve and a fire extinguisher interface, wherein the above parts are connected with a process air path through mechanical connection and an electric cable to form experimental equipment.
In this example, all gas lines were selected from a 316L stainless steel bayonet tube having an outside diameter of 1/4 inch and a pressure resistance of 35MPa.
In the embodiment, the nitrogen source interface, the fire extinguishing agent storage tank air inlet interface, the fire extinguishing agent storage tank air outlet interface, the air outlet and the fire extinguisher interface are all double-clamping sleeve straight connectors made of 316L stainless steel.
In the embodiment, the nitrogen source pressure gauge, the fire extinguisher pressurizing pressure gauge, the fire extinguishing agent storage tank pressurizing pressure gauge and the fire extinguishing agent storage tank outlet pressure gauge are respectively connected with the pressure gauge in a range of 0-16 MPa and a 1/4 inch cutting sleeve pipe, and the installation mode is panel installation.
In the embodiment, the vacuum gauge is connected by a clamping sleeve pipe with the measuring range of-100 kPa to 150kPa and 1/4 inch, and the installation mode is panel installation.
In this example, a straight-through particulate filter was used as the filter, a 1/4 inch ferrule tube fitting was used at each end, the nominal pore size of the filter assembly was 0.5 microns, and the operating pressure was 20MPa in the range of-28 to 37 ℃.
In the embodiment, the three-way valve of nitrogen and the three-way valve of fire extinguishing agent-vacuumizing-filling are three-way switching ball valves, three ends of the three-way valve are connected with 1/4 inch ferrule tube connectors, working pressure at 37 ℃ is 17.2MPa, and Cv value is 0.9.
In the embodiment, the fire extinguisher pressurizing pressure regulating valve and the fire extinguishing agent storage tank pressurizing pressure regulating valve are panel-mounted compact pressure regulating valves, the maximum air inlet pressure is 24.8MPa, the outlet pressure is 0-10.3 MPa, the two ends are connected into 1/8 inch FNPT connection, and the Cv value is 0.06.
In the embodiment, the exhaust valve, the pressurizing valve and the exhaust valve of the fire extinguishing agent storage tank pipeline are ball valves, the two ends of the exhaust valve are 1/4 inch clamping sleeve connectors, the rated value of the room temperature (37 ℃) pressure is 17.2MPa, and the Cv value is 0.6.
In the embodiment, the proportional unloading valve is a proportional unloading valve with 1/4 inch sleeve joints at two ends, the rated room temperature pressure is 41.3MPa at 37 ℃, the rated highest temperature pressure is 121 ℃, the rated 33.8MPa, the unloading action pressure can be adjusted within a certain range, for example, the rated working pressure of a fire extinguisher is 4.5MPa, the adjustable action pressure range of the selected unloading valve is 2.41-5.17 MPa, and the pressure is manually adjusted to 4.5MPa in the base.
In the embodiment, the vacuum pump is a diaphragm oil-free vacuum pump, the limiting pressure is 3.3kPa, and the actual pumping speed is 120L/min.
In this embodiment, the filling quality controller is a PLC.
In the embodiment, the weighing equipment adopts a precise electronic balance, the measuring range is 0-56 kg, and the precision is 0.1g.
In this embodiment, the pneumatic actuator is selected from pneumatic actuators for three-way switching valves.
In this embodiment, the limit switch is a limit switch capable of outputting a normally closed signal and a switching signal at two ends.
The working flow is as follows, all valves of the fire extinguishing agent filling equipment are in a closed state, a nitrogen source interface valve is connected with a nitrogen source interface, a fire extinguishing agent storage tank pressurizing air inlet valve and a fire extinguishing agent storage tank air outlet valve of a fire extinguishing agent storage tank are respectively connected with a fire extinguishing agent storage tank air inlet interface and a fire extinguishing agent storage tank air outlet interface, a fire extinguisher is arranged on a weighing device, and the fire extinguisher is connected with a fire extinguisher interface. Firstly, vacuumizing operation is carried out on the fire extinguisher, the 1 end and the 3 end of the fire extinguishing agent-vacuumizing-filling three-way valve are communicated, a vacuum pump is started, and when the vacuum degree in the fire extinguisher meets the requirement, the fire extinguishing agent-vacuumizing-filling three-way valve is closed. Inputting the mass of the fire extinguishing agent to be filled into the fire extinguisher in the filling quality controller, communicating the 1 end and the 2 end of the fire extinguishing agent-vacuumizing-filling three-way valve, if the pressure in the fire extinguishing agent storage tank is higher, automatically flowing the fire extinguishing agent into the fire extinguisher due to the action of pressure difference, if the pressure in the fire extinguishing agent storage tank is lower, communicating the 1 end and the 3 end of the nitrogen three-way valve, regulating the pressurizing and pressure regulating valve of the fire extinguishing agent storage tank, stopping regulating the pressurizing and pressure regulating valve of the fire extinguishing agent storage tank when the indication of the pressurizing pressure gauge of the fire extinguishing agent storage tank and the pressure gauge of the outlet of the fire extinguishing agent storage tank meets the requirement, wherein the fire extinguishing agent can be influenced by the pressurizing nitrogen gas to flow into the fire extinguisher, and when the weighing equipment measures the mass of the fire extinguishing agent to reach the value set in the filling quality controller, controlling the action of the pneumatic actuating mechanism by the filling quality controller, switching off the fire extinguishing agent-vacuumizing-filling three-way valve, and feeding the open state of the pressurizing nitrogen gas-emptying-filling three-way valve by the limit switch back to the filling quality controller. And then, carrying out nitrogen pressurization on the fire extinguisher, communicating the 1 end and the 2 end of the nitrogen three-way valve, opening the fire extinguisher pressurization valve, regulating the fire extinguisher pressurization pressure regulating valve according to the pressure value of the fire extinguisher to be pressurized, stopping regulating the fire extinguisher pressurization pressure regulating valve when the number of the fire extinguisher pressurization pressure gauge reaches the requirement, closing the filling valve on the fire extinguisher, and closing the nitrogen three-way valve, wherein the filling of the fire extinguisher is finished. The residual gas in the pipeline is required to be exhausted, after an interface valve on a nitrogen source, an inlet valve of a fire extinguishing agent storage tank and an outlet valve of the fire extinguishing agent storage tank are closed, the 1 end and the 2 end of a nitrogen three-way valve are communicated, the 1 end and the 2 end of the fire extinguishing agent-vacuumizing-filling three-way valve are communicated, an exhaust valve of the fire extinguishing agent storage tank pipeline is opened, the exhaust valve is opened, residual gas in other pipelines in the equipment can be exhausted, and at the moment, the fire extinguisher filling valve and a fire extinguisher interface can be disconnected.
Claims (5)
1. A fire extinguishing agent charging apparatus, the apparatus comprising: the fire extinguisher comprises a nitrogen source interface, a filter, a nitrogen source pressure gauge, a nitrogen three-way valve, a fire extinguisher pressurization pressure regulating valve, a fire extinguisher pressurization pressure gauge, a fire extinguisher storage tank pressurization pressure regulating valve, a fire extinguisher storage tank pressurization pressure gauge, a fire extinguisher storage tank pipeline exhaust valve, a fire extinguisher storage tank outlet pressure gauge, a fire extinguisher storage tank air inlet interface, a fire extinguisher storage tank air outlet interface, a fire extinguisher-vacuumizing-filling three-way valve, a vacuum gauge, a vacuum pump, an exhaust silencer, an exhaust port, a filling quality controller, a pneumatic actuating mechanism, a limit switch, weighing equipment, a fire extinguisher pressurization valve, an exhaust valve, a proportional unloading valve and a fire extinguisher interface; the nitrogen source interface is connected with the filter; the filter is connected with the 1 st end of the nitrogen three-way valve; a nitrogen source pressure gauge is arranged on a pipeline connected with the filter and the nitrogen three-way valve; the 2 end of the nitrogen three-way valve is connected with the high pressure side of the pressurizing and pressure regulating valve of the fire extinguisher; the 3 end of the nitrogen three-way valve is connected with a pressurizing and pressure regulating valve of the fire extinguishing agent storage tank; the low pressure side of the fire extinguisher pressurizing pressure regulating valve is connected with the fire extinguisher pressurizing valve; the fire extinguisher pressurizing pressure gauge is arranged on a pipeline between the low pressure side of the fire extinguisher pressurizing pressure regulating valve and the fire extinguisher pressurizing valve; the fire extinguishing agent storage tank pressurizing pressure regulating valve, the fire extinguishing agent storage tank pressurizing pressure gauge, the fire extinguishing agent storage tank air inlet port and the fire extinguishing agent storage tank pipeline exhaust valve are connected through a four-way pipeline; the exhaust valve of the fire extinguishing agent storage tank pipeline, the pressure gauge at the outlet of the fire extinguishing agent storage tank, the outlet port of the fire extinguishing agent storage tank and the end 2 of the fire extinguishing agent-vacuumizing-filling three-way valve are connected through a four-way pipeline; the 3 end of the fire extinguishing agent-vacuumizing-filling three-way valve is sequentially connected with a vacuum pump, an exhaust silencer and an exhaust port through pipelines; the vacuum meter is arranged on a pipeline between the end of the fire extinguishing agent-vacuumizing-filling three-way valve 3 and the vacuum pump; the fire extinguisher pressurizing valve, the exhaust valve and the fire extinguishing agent-vacuumizing-filling three-way valve are communicated with the fire extinguisher connector at the 1 st end; the air inlet of the proportional unloading valve is arranged on a pipeline connected with the fire extinguisher pressurizing valve and the fire extinguisher connector, and the air outlet is arranged on a pipeline connected with the exhaust valve and the exhaust silencer; the weighing equipment outputs an electric signal to the filling quality controller, and the filling quality controller is connected with the pneumatic actuating mechanism and the limit switch through an electric circuit; the pneumatic actuating mechanism is arranged on a valve rod of the fire extinguishing agent-vacuumizing-filling three-way valve, wherein:
the nitrogen source interface is used for being connected with a nitrogen source for providing pressure;
the filter is used for filtering out particulate impurities in the nitrogen gas stream;
the nitrogen source pressure gauge is used for measuring the pressure of a nitrogen source;
the nitrogen three-way valve is used for selectively switching the flow of nitrogen gas to a fire extinguisher or a fire extinguishing agent storage tank, the valve can be turned off, namely the end 1, the end 2 and the end 3 are not communicated with each other, the end 1 of the valve can also be respectively communicated with the end 2 or the end 3, but the end 2 and the end 3 of the valve cannot be communicated with each other;
the pressure regulating valve is used for regulating the pressure of pressurized nitrogen gas filled into the fire extinguisher;
the fire extinguisher pressurizing pressure gauge is used for displaying the pressure of pressurizing nitrogen filled into the fire extinguisher;
the fire extinguishing agent storage tank pressurizing and pressure regulating valve is used for regulating the pressure of pressurized nitrogen filled in the fire extinguishing agent storage tank;
the fire extinguishing agent storage tank pressurizing pressure gauge is used for displaying the pressure of pressurized nitrogen filled in the fire extinguishing agent storage tank;
the exhaust valve of the fire extinguishing agent storage tank pipeline is used for exhausting the pressure in the connecting pipeline of the fire extinguishing agent storage tank and the filling equipment when the fire extinguishing agent storage tank is replaced and the filling is finished;
the fire extinguishing agent storage tank outlet pressure gauge is used for displaying the pressure of the fire extinguishing agent output by the fire extinguishing agent storage tank;
the fire extinguishing agent storage tank air inlet port is used for connecting a fire extinguishing agent storage tank pressurizing air inlet valve;
the fire extinguishing agent storage tank air outlet interface is used for connecting an air outlet valve of the fire extinguishing agent storage tank;
the fire extinguishing agent-vacuumizing-filling three-way valve is used for switching the airflow flowing direction of the fire extinguisher filling fire extinguishing agent and the fire extinguisher vacuumizing, the valve can be switched off, namely the 1 end, the 2 end and the 3 end are not communicated with each other, the 1 end of the valve can be respectively communicated with the 2 end or the 3 end, but the 2 end and the 3 end of the valve cannot be communicated with each other;
the vacuum gauge is used for displaying the vacuum degree in the fire extinguisher during vacuumizing;
the vacuum pump is used for vacuumizing the fire extinguisher;
the exhaust silencer is used for eliminating noise during exhaust;
the exhaust port is used for exhausting gas in the filling equipment pipeline;
the filling quality controller is used for setting the quality of the filling fire extinguishing agent;
the pneumatic actuating mechanism is used for controlling the opening state of the fire extinguishing agent-vacuumizing-filling three-way valve;
the limit switch is used for displaying the opening state of the three-way valve for extinguishing agent-vacuumizing-filling;
the weighing equipment is used for weighing the mass of the filled fire extinguishing agent;
the fire extinguisher pressurizing valve is used for controlling filling nitrogen into the fire extinguisher so as to pressurize the fire extinguisher;
the exhaust valve is used for controlling the exhaust of the gas in the equipment pipeline;
the proportional unloading valve is used for automatically releasing pressure when the pressure is too high in the filling process of the fire extinguisher;
the fire extinguisher connector is used for being connected with a fire extinguisher filling valve.
2. A fire extinguishing agent filling apparatus according to claim 1 wherein the proportional relief valve is selected in dependence upon the filling pressure of the fire extinguisher, the pressure of the proportional relief valve being equal to the maximum filling pressure of the fire extinguisher.
3. The fire extinguishing agent filling apparatus according to claim 1, wherein the filling quality controller inputs the mass of the fire extinguishing agent to be filled into the fire extinguisher, and the filling quality controller controls the pneumatic execution structure to open and close the fire extinguishing agent-vacuumizing-filling three-way valve according to the set filling quality, thereby controlling the filling process.
4. A fire extinguishing agent charging apparatus as claimed in claim 1, wherein the vacuum pump is connected to the fire extinguisher charging pipe, and the fire extinguishing agent charging function and the vacuum pumping function are switched by a three-way valve.
5. A fire extinguishing agent filling apparatus as claimed in claim 1 wherein the piping connecting the valve assemblies is as short as possible without affecting maintenance of the apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120189.2A CN109185692B (en) | 2018-09-26 | 2018-09-26 | Fire extinguishing agent filling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120189.2A CN109185692B (en) | 2018-09-26 | 2018-09-26 | Fire extinguishing agent filling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109185692A CN109185692A (en) | 2019-01-11 |
| CN109185692B true CN109185692B (en) | 2024-02-09 |
Family
ID=64909981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811120189.2A Active CN109185692B (en) | 2018-09-26 | 2018-09-26 | Fire extinguishing agent filling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185692B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357021A (en) * | 2019-06-24 | 2019-10-22 | 北京北机机电工业有限责任公司 | A kind of liquid-state extinguishing agent bottle placer |
| CN110778912B (en) * | 2019-11-05 | 2021-10-12 | 安徽英杰精工机械有限公司 | Fire extinguishing agent filling equipment and filling method thereof |
| CN113233399B (en) * | 2021-05-06 | 2022-12-27 | 中航飞机起落架有限责任公司 | Automatic fire extinguishing agent filling system with double filling and double control functions and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012021554A (en) * | 2010-07-13 | 2012-02-02 | Iwatani Industrial Gases Corp | Recovery and re-filling method of fire extinguishing halon gas and its device |
| CN205579145U (en) * | 2016-03-03 | 2016-09-14 | 天津施德科技有限公司 | Automatic dress device that fills of heptafluoro -propane |
| CN207078346U (en) * | 2017-07-07 | 2018-03-09 | 杭州新纪元安全产品有限公司 | A kind of fire extinguisher filling system |
| CN207814924U (en) * | 2017-11-30 | 2018-09-04 | 重庆君道消防设备有限公司 | A kind of heptafluoro-propane extinguishing chemical charging device |
| CN209146722U (en) * | 2018-09-26 | 2019-07-23 | 中国科学技术大学 | A kind of extinguishing chemical filling equipment |
-
2018
- 2018-09-26 CN CN201811120189.2A patent/CN109185692B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012021554A (en) * | 2010-07-13 | 2012-02-02 | Iwatani Industrial Gases Corp | Recovery and re-filling method of fire extinguishing halon gas and its device |
| CN205579145U (en) * | 2016-03-03 | 2016-09-14 | 天津施德科技有限公司 | Automatic dress device that fills of heptafluoro -propane |
| CN207078346U (en) * | 2017-07-07 | 2018-03-09 | 杭州新纪元安全产品有限公司 | A kind of fire extinguisher filling system |
| CN207814924U (en) * | 2017-11-30 | 2018-09-04 | 重庆君道消防设备有限公司 | A kind of heptafluoro-propane extinguishing chemical charging device |
| CN209146722U (en) * | 2018-09-26 | 2019-07-23 | 中国科学技术大学 | A kind of extinguishing chemical filling equipment |
Non-Patent Citations (1)
| Title |
|---|
| MSP型超低温泡沫灭火器的灌装工艺;王丛;消防技术与产品信息(05);60-62 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109185692A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109185692B (en) | Fire extinguishing agent filling equipment | |
| CN112923239B (en) | Hydrogen replacement purging device for hydrogenation station and use method thereof | |
| CN107271189B (en) | A kind of propellant sustainable supply system for electric propulsion engine test for a long time | |
| CN108398272A (en) | A kind of fuel system and method for the experiment of shock tunnel super burn engine inlets | |
| CN102464291A (en) | Ground direct and quantitative filling system and method | |
| CN104697775A (en) | Automatic precise debugging system of gas lift valve | |
| CN104641164A (en) | Method for performing a pressure test on a tank and tank filling apparatus | |
| CN209146722U (en) | A kind of extinguishing chemical filling equipment | |
| CN113586952A (en) | Automatic gas discharging system and method for hydrogenation station | |
| CN211182372U (en) | Gas supply control system for hydrogen fuel cell | |
| CN209354734U (en) | Operated pneumatic valve pneumatic system | |
| CN202056524U (en) | Gas pressure regulator | |
| CN204805954U (en) | Resident biotope gas pipe network superpressure safety arrangement | |
| CN110478841A (en) | A kind of gas extinguishing system electrically activated entirely | |
| CN113586945B (en) | Hydrogenation station is with automatic dress gas discharging device that fills | |
| CN110145687B (en) | Hydrogen supply system for small marine reactor | |
| CN205191220U (en) | Instrument air supply system | |
| CN211463584U (en) | Spray gun system capable of meeting pressure control requirements by utilizing three-way electromagnetic valve | |
| CN209084413U (en) | The suction vacuum air-channel system of equipment | |
| CN220743365U (en) | Engine oxygen supplementing system tester | |
| CN216497169U (en) | Fire extinguishing system and fire engine | |
| CN213655069U (en) | Integrated form vacuum unit | |
| CN214119686U (en) | Gas pipeline purging system | |
| CN213516326U (en) | Valve off-line pressure test tool | |
| JPH08291896A (en) | Gas supplying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |