CN113418137A - Liquid carbon dioxide fire extinguisher gas charging equipment - Google Patents
Liquid carbon dioxide fire extinguisher gas charging equipment Download PDFInfo
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- CN113418137A CN113418137A CN202110638107.9A CN202110638107A CN113418137A CN 113418137 A CN113418137 A CN 113418137A CN 202110638107 A CN202110638107 A CN 202110638107A CN 113418137 A CN113418137 A CN 113418137A
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- Prior art keywords
- inflation
- fire extinguisher
- valve
- gas
- pipe
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Classifications
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- 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
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
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- 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
-
- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses an inflation device of a liquid carbon dioxide fire extinguisher, and relates to the technical field of fire extinguishers; comprises a station for inflating the fire extinguisher, an air storage tank, a booster pump connected with the air outlet of the air storage tank, an air return pipe for connecting the air inlets of the booster pump and the air storage tank, and an automatic valve positioned on the air return pipe; the station comprises an inflation head used for connecting the fire extinguisher and inflating, an inflation tube with one end connected with the inflation head, an exhaust tube with one end connected with the inflation tube, an exhaust valve positioned on the exhaust tube and an inflation valve positioned on the inflation tube; a section of the air return pipe between the booster pump and the automatic valve is named as a first section, and one end of the inflation pipe, which is far away from the inflation head, is communicated with the first section; the charge valve is positioned at one side of the exhaust pipe close to the booster pump. When the air is not inflated, the air in the inflation tube flows, so that the over-high pressure of the inflation tube is avoided, and the pipeline is safe.
Description
Technical Field
The invention belongs to the technical field of fire extinguishers, and particularly relates to an inflation device of a liquid carbon dioxide fire extinguisher.
Background
When the carbon dioxide fire extinguisher is produced, the fire extinguisher needs to be inflated, when the fire extinguisher is inflated, the inflation head is in threaded connection with the inflation port of the fire extinguisher, then the inflation valve is opened, and after the inflation is finished, the inflation valve is closed. Meanwhile, after the inflation is finished, high-pressure gas still exists between the inflation head and the inflation opening, the inflation head is not easy to separate from the inflation opening, and the high-pressure gas is sprayed out after separation to cause potential safety hazards.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the liquid carbon dioxide fire extinguisher gas charging equipment. Meanwhile, after the inflation is finished, the gas between the inflation head and the inflation opening is discharged, the inflation head is easy to separate from the inflation opening, and potential safety hazards caused by high-pressure gas ejection after separation are avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a liquid carbon dioxide fire extinguisher inflation device comprises a station for inflating a fire extinguisher, a gas storage tank, a booster pump connected with a gas outlet of the gas storage tank, a gas return pipe for connecting the booster pump with a gas inlet of the gas storage tank, and an automatic valve positioned on the gas return pipe; the station comprises an inflation head used for connecting the fire extinguisher and inflating, an inflation tube with one end connected with the inflation head, an exhaust tube with one end connected with the inflation tube, an exhaust valve positioned on the exhaust tube and an inflation valve positioned on the inflation tube; a section of the air return pipe between the booster pump and the automatic valve is named as a first section, and one end of the inflation pipe, which is far away from the inflation head, is communicated with the first section; the charge valve is positioned at one side of the exhaust pipe close to the booster pump.
Preferably, a section of the return air pipe between the automatic valve and the air inlet of the air storage tank is named as a second section, the first section is provided with a first maintenance valve, the first maintenance valve is located between the automatic valve and the inflation pipe, the second section is provided with a second maintenance valve, the second section is connected with a pressure reducing pipe, one end of the pressure reducing pipe is connected with the second section and is located on one side, close to the air inlet of the air storage tank, of the second maintenance valve, the other end of the pressure reducing pipe is communicated with the inflation pipe, and the pressure reducing pipe is provided with a pressure reducing valve.
Preferably, the automatic valve is a low-temperature stainless steel pneumatic ball valve.
Preferably, the first maintenance valve, the second maintenance valve, and the pressure reducing valve are all manual valves.
Preferably, the number of stations is at least two.
Preferably, a safety relief valve is arranged on the inflation pipe.
Preferably, the inflation device further comprises a display screen used for detecting that the inflation pressure is the air pressure sensor and displaying the inflation parameters.
Preferably, the station further comprises a fixing mechanism for fixing the fire extinguisher and further inflating the fire extinguisher; the fixing mechanism comprises a support, a bracket detachably connected with the support and used for hanging a valve body of the fire extinguisher, a lower pressure cylinder positioned on the support and used for pressing down a pressure lifting handle of the fire extinguisher, and a pushing cylinder used for driving the inflation head to press the inflation inlet tightly so as to enable the inflation head and the bracket to be matched to clamp the fire extinguisher tightly; the pushing cylinder is connected with the bracket.
Preferably, the bracket is provided with a positioning groove for positioning the valve body of the fire extinguisher.
Preferably, the number of the hold-down cylinders of the station is two.
Preferably, the inflation head comprises a head body, a groove which is arranged on the head body and is used for inserting the inflation port of the fire extinguisher, and a sealing gasket which is arranged in the groove.
Preferably, the material of the sealing gasket is polyurethane.
Preferably, the fixing mechanism further comprises a foot switch for controlling the pushing cylinder.
Preferably, the fixing mechanism further comprises a weighing sensor connected with the bracket;
the inflating equipment further comprises an inflating key and a control host.
The invention has the beneficial effects that: when the air is not inflated, the air in the inflation tube flows, so that the phenomenon that the pressure of the inflation tube is too high and the pipeline is unsafe is avoided. Meanwhile, after the inflation is finished, the gas between the inflation head and the inflation opening is discharged, the inflation head is easy to separate from the inflation opening, and potential safety hazards caused by high-pressure gas ejection after separation are avoided. In addition, the multi-station staggered operation improves the working efficiency. The fixing mechanism replaces the traditional threaded connection, and the connection is more convenient. And after the inflation is finished, carrying out weight rechecking, and when the weight error is larger, having an alarm function. The automatic valve is convenient to maintain by arranging the first maintenance valve, the second maintenance valve and the pressure reducing valve. A plurality of air inflation modules are arranged in advance, each air inflation module corresponds to the air inflation pressure and the air inflation weight of a fire extinguisher of one model, and only the corresponding module is selected without inputting a plurality of air inflation parameters again.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
FIG. 2 is a schematic view of a fire extinguisher at a station;
FIG. 3 is a schematic view of another fire extinguisher at a station;
FIG. 4 is a carbon dioxide flow diagram when not aerated;
FIG. 5 is a carbon dioxide flow diagram during aeration;
fig. 6 is a carbon dioxide flow diagram during exhaust.
In the figure: the fire extinguisher comprises a fire extinguisher 1, an inflation head 2, an air storage tank 3, a booster pump 4, an air return pipe 5, an automatic valve 6, an inflation pipe 7, an exhaust pipe 8, an exhaust valve 9, an inflation valve 10, a first section 11, a second section 12, a first maintenance valve 13, a second maintenance valve 14, a pressure reducing pipe 15, a pressure reducing valve 16, a display screen 17, a support 19, a bracket 20, a lower pressure cylinder 21, a pushing cylinder 22, an inflation inlet 23, a head body 24, a groove 25, a sealing gasket 26, an inflation key 27, a control host 28, a safety pressure relief valve 29, a positioning groove 30, a valve body 31, a station 32 and a pressure lifting handle 33.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
example (b):
referring to fig. 1 to 6, the liquid carbon dioxide fire extinguisher inflation device comprises a station 32 for inflating a fire extinguisher 1, an air storage tank 3, a booster pump 4 connected with an air outlet of the air storage tank 3, an air return pipe 5 connected with air inlets of the booster pump 4 and the air storage tank 3, an automatic valve 6 arranged on the air return pipe 5, an air pressure sensor for detecting the inflation air pressure, a display screen 17 for displaying inflation parameters, an inflation key 27 and a control host 28.
The station comprises an inflation head 2 used for connecting the fire extinguisher 1 and inflating, an inflation tube 7 with one end connected with the inflation head 2, an exhaust tube 8 with one end connected with the inflation tube 7, an exhaust valve 9 positioned on the exhaust tube 8 and an inflation valve 10 positioned on the inflation tube 7; the fire extinguisher fixing device also comprises a fixing mechanism used for fixing the fire extinguisher 1 and further inflating the fire extinguisher 1;
a section of the air return pipe 5 between the booster pump 4 and the automatic valve 6 is named as a first section 11, and one end of the inflation pipe 7 far away from the inflation head 2 is communicated with the first section 11;
the charging valve 10 is positioned at one side of the exhaust pipe 8 close to the booster pump 4.
The section of the return air pipe 5 between the automatic valve 6 and the air inlet of the air storage tank 3 is named as a second section 12, a first maintenance valve 13 is arranged on a first section 11, the first maintenance valve 13 is located between the automatic valve 6 and the inflation pipe 7, a second maintenance valve 14 is arranged on the second section 12, a pressure reducing pipe 15 is connected onto the second section 12, one end of the pressure reducing pipe 15 is connected with the second section 12 and is located on one side, close to the air inlet of the air storage tank 3, of the second maintenance valve 14, the other end of the pressure reducing pipe 15 is communicated with the inflation pipe 7, and a pressure reducing valve 16 is arranged on the pressure reducing pipe 15.
The automatic valve 6 adopts a low-temperature stainless steel pneumatic ball valve. The first maintenance valve 13, the second maintenance valve 14, and the pressure reducing valve 16 are all manual valves.
The number of stations is at least two.
The inflation tube 7 is provided with a safety relief valve 29.
The fixing mechanism comprises a support 19, a bracket 20 detachably connected with the support 19 and used for hanging a valve body 31 of the fire extinguisher 1, a lower pressure cylinder 21 positioned on the support 19 and used for pressing a lifting handle 33 of the fire extinguisher 1, and a pushing cylinder 22 driving the inflation head 2 to press the inflation opening 23 so that the inflation head 2 is matched with the bracket 20 to clamp the fire extinguisher 1; a foot switch to control the push cylinder 22; a load cell connected with the bracket 19;
the pushing cylinder 22 is connected to the bracket 19.
The bracket 20 is provided with a positioning slot 30 for positioning a valve body 31 of the fire extinguisher 1.
The number of the lower cylinders 21 of the station is two.
The charging head 2 comprises a head body 24, a groove 25 positioned on the head body 24 for inserting the charging port 23 of the fire extinguisher 1, and a sealing gasket 26 positioned in the groove 25.
The material of the sealing gasket 26 is polyurethane.
Principle of embodiment:
in the case where the automatic valve 6 can normally operate: the first maintenance valve 13 is opened, the second maintenance valve 14 is opened, and the pressure reducing valve 16 is closed.
And (3) during inflation:
the display screen 17 is a touch screen, and an inflation module of a fire extinguisher to be inflated can be selected on the display screen (a plurality of inflation modules are arranged in advance, each inflation module corresponds to the inflation pressure and the inflation weight of one type of fire extinguisher, and a plurality of inflation parameters do not need to be input again as long as the corresponding module is selected). The weight and the inflation pressure measured by the weighing sensor are displayed on the display screen;
the fire extinguisher product batch number is input into the control host, and the input mode can adopt manual input or code scanning gun code scanning input.
The valve body 31 of the fire extinguisher 1 is partially hung on the bracket 20 (the lower side of the fire extinguisher is suspended so as to be suitable for fire extinguishers with different heights), and the valve body 31 is partially embedded into the positioning groove 30;
it is stated that the valve of the fire extinguisher 1 comprises a valve body 31 and a pressure lifting handle, and the charging port 23 is positioned at one side of the valve body 31; the valves on the market can be divided into two categories, one of them: the inflation port 23 is oriented opposite to the pressure lever, see FIG. 2; the other one is as follows: the orientation of the inflation port 23 is perpendicular to the orientation of the lifting handle, see fig. 3; the two lower pressure cylinders 21 on each station are respectively used for pressing down the lifting handles of two types of fire extinguishers.
In actual use, different brackets are replaced according to different types of fire extinguishers, after the fire extinguishers are hung on the brackets, the positions of the inflation head 2 correspond to the positions of the inflation ports 23.
Then, the foot switch is stepped on, the pushing cylinder 22 is extended, the inflation head 2 is pressed on the inflation port 23, and the inflation port 23 is inserted into the groove 25 and pressed on the sealing gasket 26 to realize sealing.
After the fire extinguisher is determined to be installed correctly, the inflation key 27 is pressed, the weight on the display screen is reset, then the corresponding lower pressure cylinder 21 presses the lifting and pressing handle downwards, the valve of the fire extinguisher is opened, the automatic valve 6 is closed, the exhaust valve 9 is closed, the inflation valve 10 is opened, carbon dioxide enters the fire extinguisher under the action of the booster pump 4, and the weight measured by the weighing sensor is increased (the increased weight is the weight charged by the carbon dioxide), which is shown in fig. 5.
When the charged weight reaches the required amount, the inflation valve 10 is closed, then the exhaust valve 9 is opened, high-pressure gas between the inflation head 2 and the inflation valve 10 is discharged to the outside (when the inflation head 2 and the fire extinguisher are prevented from being disconnected, the high-pressure gas hurts people), the push cylinder 22 retracts, and the inflation head 2 and the fire extinguisher are disconnected; at this time, since the gas charging pipe 7 is close to the first section 11 and the pressure in the first section 11 is high, in order to protect the pipeline, the automatic valve 6 is opened, the high-pressure gas in the first section 11 flows back to the gas storage tank 3 after passing through the automatic valve 6 and the second section 12, the pressure in the pipeline is reduced, and the pipeline is protected, see fig. 6; at the moment, the weighing sensor measures the weight again, and compares the measured weight with the set weight to be charged (the comparison is needed because although the exhaust valve 9 is automatically closed after reaching the weight and stops charging, a delay is used for continuously charging a part of carbon dioxide), if the error of the measured weight and the set weight exceeds a certain proportion (the proportion can be manually set), an alarm device gives an alarm to remind an operator to debug the machine again; the final weight is stored in the server and has traceability.
Then the exhaust valve 9 is closed, the lower pressure cylinder rises, the pushing cylinder retracts, the fire extinguisher is taken down and is ready for next inflation, see fig. 4;
this embodiment has two stations, but each station is independent each other, and crisscross inflation improves work efficiency.
When the automatic valve 6 is damaged and cannot be opened, at this time, the pressure of the first section 11 and the inflation pipe 7 is high, the valves of the air outlets of the booster pump 4 and the air storage tank 3 are closed, then the pressure reducing pipe 15 is opened, the air in the first section 11 and the inflation pipe 7 enters the air storage tank 3 through the air inlet of the air storage tank 3, the pressure in the first section 11 and the air storage pipe 7 is reduced, then the first maintenance valve 13 and the second maintenance valve 14 are closed, and the automatic valve 6 is maintained or replaced.
Claims (7)
1. The liquid carbon dioxide fire extinguisher gas filling equipment is characterized by comprising a station for filling gas to a fire extinguisher, a gas storage tank, a booster pump connected with a gas outlet of the gas storage tank, a first gas pipe for connecting the booster pump with a gas inlet of the gas storage tank, and an automatic valve positioned on the first gas pipe;
the station comprises an inflation head used for connecting the fire extinguisher and inflating, an inflation tube with one end connected with the inflation head, an exhaust tube with one end connected with the inflation tube, an exhaust valve positioned on the exhaust tube and an inflation valve positioned on the inflation tube;
a section of a first air pipe between the booster pump and the automatic valve is named as a first section, and one end of the air pipe, far away from the inflating head, is communicated with the first section;
the charging valve is positioned at one side of the exhaust pipe close to the booster pump;
the number of the stations is at least two.
2. The liquid carbon dioxide fire extinguisher inflation apparatus as claimed in claim 1, wherein a section of the first gas pipe between the automatic valve and the gas inlet of the gas storage tank is named as a second section, the first section is provided with a first maintenance valve, the first maintenance valve is located between the automatic valve and the gas charging pipe, the second section is provided with a second maintenance valve, the second section is connected with a pressure reducing pipe, one end of the pressure reducing pipe is connected with the second section and is located on one side of the second maintenance valve close to the gas inlet of the gas storage tank, the other end of the pressure reducing pipe is communicated with the gas charging pipe, and the pressure reducing pipe is provided with a pressure reducing valve.
3. The liquid carbon dioxide fire extinguisher inflation apparatus of claim 1, wherein said station further comprises a securing mechanism to secure a fire extinguisher for inflating the fire extinguisher;
the fixing mechanism comprises a support, a bracket detachably connected with the support and used for hanging a valve body of the fire extinguisher, a lower pressure cylinder positioned on the support and used for pressing down a pressure lifting handle of the fire extinguisher, and a pushing cylinder used for driving the inflation head to press the inflation inlet tightly so as to enable the inflation head and the bracket to be matched to clamp the fire extinguisher tightly;
the pushing cylinder is connected with the bracket.
4. The liquid carbon dioxide extinguisher inflator of claim 3, wherein the bracket is provided with a positioning slot for positioning a valve body of the extinguisher.
5. The liquid carbon dioxide extinguisher gas filling apparatus according to claim 4, wherein the number of the lower pressure cylinders of the station is two.
6. The liquid carbon dioxide fire extinguisher inflation apparatus as claimed in claim 3, wherein the inflation head comprises a head body, a groove on the head body for inserting the inflation inlet of the fire extinguisher, and a sealing gasket in the groove.
7. The liquid carbon dioxide extinguisher gas filling apparatus according to claim 3, wherein the fixing mechanism further comprises a load cell connected to the bracket;
the inflating equipment further comprises an inflating key and a control host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110638107.9A CN113418137B (en) | 2021-06-08 | 2021-06-08 | Liquid carbon dioxide fire extinguisher gas charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110638107.9A CN113418137B (en) | 2021-06-08 | 2021-06-08 | Liquid carbon dioxide fire extinguisher gas charging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113418137A true CN113418137A (en) | 2021-09-21 |
| CN113418137B CN113418137B (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110638107.9A Active CN113418137B (en) | 2021-06-08 | 2021-06-08 | Liquid carbon dioxide fire extinguisher gas charging equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003148693A (en) * | 2001-11-08 | 2003-05-21 | Nippon Tansan Gas Co Ltd | Method for filling container with high pressure gas and device used in the method |
| CN102141192A (en) * | 2010-12-15 | 2011-08-03 | 浙江欧伦泰防火设备有限公司 | Liquid CO2 extinguisher filling device |
| CN103375681A (en) * | 2012-04-11 | 2013-10-30 | 马格纳斯泰尔汽车技术两合公司 | Pressure storage assembly |
| CN206723822U (en) * | 2017-03-07 | 2017-12-08 | 武汉市图腾工贸发展有限公司 | A kind of carbon dioxide charging device |
| CN110017425A (en) * | 2019-04-16 | 2019-07-16 | 浙江冰尔新型制冷剂有限公司 | A kind of disposable cyclinder gas filling production lines and its production method |
-
2021
- 2021-06-08 CN CN202110638107.9A patent/CN113418137B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003148693A (en) * | 2001-11-08 | 2003-05-21 | Nippon Tansan Gas Co Ltd | Method for filling container with high pressure gas and device used in the method |
| CN102141192A (en) * | 2010-12-15 | 2011-08-03 | 浙江欧伦泰防火设备有限公司 | Liquid CO2 extinguisher filling device |
| CN103375681A (en) * | 2012-04-11 | 2013-10-30 | 马格纳斯泰尔汽车技术两合公司 | Pressure storage assembly |
| CN206723822U (en) * | 2017-03-07 | 2017-12-08 | 武汉市图腾工贸发展有限公司 | A kind of carbon dioxide charging device |
| CN110017425A (en) * | 2019-04-16 | 2019-07-16 | 浙江冰尔新型制冷剂有限公司 | A kind of disposable cyclinder gas filling production lines and its production method |
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| Publication number | Publication date |
|---|---|
| CN113418137B (en) | 2022-04-08 |
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