CN212262432U - Fire extinguishing agent multi-stage separation recovery system disappears - Google Patents
Fire extinguishing agent multi-stage separation recovery system disappears Download PDFInfo
- Publication number
- CN212262432U CN212262432U CN202020765084.9U CN202020765084U CN212262432U CN 212262432 U CN212262432 U CN 212262432U CN 202020765084 U CN202020765084 U CN 202020765084U CN 212262432 U CN212262432 U CN 212262432U
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- Prior art keywords
- cold
- liquefaction
- fire extinguishing
- extinguishing agent
- separation
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- 238000000926 separation method Methods 0.000 title claims abstract description 39
- 238000011084 recovery Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000004064 recycling Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 47
- 239000007789 gas Substances 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000009835 boiling Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 5
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 4
- NSGXIBWMJZWTPY-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropane Chemical compound FC(F)(F)CC(F)(F)F NSGXIBWMJZWTPY-UHFFFAOYSA-N 0.000 description 3
- 229920004449 Halon® Polymers 0.000 description 3
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model relates to a fire extinguishing agent multi-stage separation and recovery system, which belongs to the technical field of fire fighting application equipment, and comprises a purifier and a plurality of cold-exchange liquefaction separation units, wherein the purifier is communicated with a first-stage cold-exchange liquefaction separation unit pipeline, and all stages of cold-exchange liquefaction separation units are connected in series through a pipeline; the cold liquefaction separation unit that trades includes cold liquefaction separator, balanced recycling bin, liquid level controller, pressure controller, flowing back solenoid valve, exhaust solenoid valve of trading, cold liquefaction separator includes withstand voltage shell, high-efficient heat exchanger and defroster, balanced recycling bin links to each other with cold liquefaction separator bottom of trading, cold liquefaction separator upper portion of trading sets up pressure controller, cold liquefaction separator lower part of trading sets up liquid level controller. The utility model discloses a multistage cold liquefaction separation element that trades can be applicable to the separation of multiple fire extinguishing agent and retrieve, can be applicable to the high-efficient of single fire prevention fire extinguishing agent again and retrieve, reduces the harm that the fire extinguishing agent discharged the environment.
Description
Technical Field
The utility model belongs to the technical field of fire control application apparatus, specifically speaking relates to a fire control fire extinguishing agent multistage separation recovery system.
Background
In the field of fire fighting, gas fire extinguishing agents such as heptafluoropropane, hexafluoropropane and halon (1211, 1301) are used for extinguishing fire by pressing out the fire extinguishing agent stored in a steel cylinder by means of high-pressure nitrogen. When the inspection of gaseous fire extinguishing systems, need to discharge the fire extinguishing agent, the direct discharge can produce certain harm to the environment after discharging, has also caused a large amount of wastes of fire extinguishing agent moreover, consequently, can carry out the recovery of fire extinguishing agent usually. In the prior art, a patent 201820183921.X discloses a Halon fire extinguishing agent recovery system, a patent 2013208766842 discloses a heptafluoropropane recovery device, which are recovery devices for a gaseous fire extinguishing agent, but in the process of recovering the fire extinguishing agent, the gas pressure is different, the liquefaction temperature of the gaseous fire extinguishing agent is different, so that the recovery rate is influenced, the recovery rate is not high by adopting primary liquefaction separation recovery, and the consumption of a refrigerant is large; in addition, the fire extinguishing agent discharged on site may be a mixed gas of a plurality of gas fire extinguishing agents, nitrogen and carbon dioxide, so that the plurality of fire extinguishing agents cannot be separated, and the recovery effect is poor.
Therefore, there is a need for a multi-stage separation and recovery system for fire extinguishing agents, which is suitable for the separation and recovery of multiple fire extinguishing agents and the efficient recovery of a single fire extinguishing agent.
Disclosure of Invention
In order to overcome the problem that exists among the background art, the utility model provides a fire prevention fire extinguishing agent multistage separation recovery system utilizes the physical characteristic of gaseous fire extinguishing agent low temperature liquefaction, adopts multistage cold to trade liquefaction the separating unit, can be applicable to the separation recovery of multiple fire extinguishing agent, can be applicable to the high-efficient of single fire prevention fire extinguishing agent again and retrieve, reduces the fire extinguishing agent and discharges the harm to the environment, reduces the use amount of cold medium.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a fire extinguishing agent multi-stage separation and recovery system comprises a purifier and a plurality of cold-exchange liquefaction separation units, wherein the purifier is communicated with a first-stage cold-exchange liquefaction separation unit through a pipeline, and all cold-exchange liquefaction separation units are connected in series through a pipeline; cold trade liquefaction separation unit include cold trade liquefaction separator, balanced recycling bin, liquid level controller, pressure controller, flowing back solenoid valve, exhaust solenoid valve, cold trade liquefaction separator includes withstand voltage shell, high-efficient heat exchanger and defroster, set up high-efficient heat exchanger and defroster in the withstand voltage shell, and the defroster setting is in high-efficient heat exchanger's top, balanced recycling bin links to each other with cold trade liquefaction separator bottom, cold trade liquefaction separator upper portion sets up pressure controller, pressure controller's signal terminal links to each other with exhaust solenoid valve, cold trade liquefaction separator lower part sets up liquid level controller, liquid level controller's signal terminal links to each other with the flowing back solenoid valve.
Preferably, the cold-exchange liquefaction separation unit has at least two stages.
Preferably, the pressure-resistant shell of the cold-exchange liquefaction separator is externally provided with a heat-insulating layer, and the heat-insulating layer is externally wound with a cold-insulation coil pipe
The utility model has the advantages that: the utility model utilizes the physical characteristics of different liquefaction temperatures of different gaseous extinguishing agents, adopts a multi-stage cold-exchange liquefaction separation unit, and separates and recovers the different gaseous extinguishing agents; simultaneously, utilize the different physical characteristics of liquefaction temperature of gaseous fire extinguishing agent under different concentration and pressure condition, the utility model discloses still be applicable to single high-efficient recovery of fire extinguishing agent that disappears, through multistage recovery, the rate of recovery is high, and can reduce the use amount of cold medium.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1-a purifier, 2-a cold exchange liquefaction separator, 3-a high-efficiency heat exchanger, 4-a demister, 5-a balance recovery barrel, 6-a cold insulation coil, 7-a liquid level controller, 8-a liquid discharge electromagnetic valve, 9-a pressure controller and 10-an exhaust electromagnetic valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in figure 1, the fire extinguishing agent multi-stage separation and recovery system comprises a purifier 1 and a plurality of cold-exchange liquefaction separation units, wherein the purifier 1 is communicated with the first-stage cold-exchange liquefaction separation unit through a pipeline, the discharged fire extinguishing agent gas possibly contains moisture, the moisture is condensed into solid at low temperature in the cold-exchange liquefaction separation unit, the solid can block the pipeline, the valve and the like in the cold-exchange liquefaction separator, and the purifier 1 is designed to adsorb and remove impurities such as the moisture and the like, so that the smoothness of a subsequent pipeline is ensured.
Cold change through the pipeline series connection between liquefaction the separation element, cold change liquefaction the separation element and include cold change liquefaction separator 2, balanced recycling bin 5, liquid level controller 7, pressure controller 9, flowing back solenoid valve 8, exhaust solenoid valve 10, cold change liquefaction separator 2 includes withstand voltage shell, high-efficient heat exchanger 3 and defroster 4, withstand voltage shell outside is equipped with the heat preservation, the winding sets up cold insulation coil 6 outside the heat preservation, let in cold medium in the cold insulation coil 6, enable the temperature maintenance in cold change liquefaction separator 2 at predetermined temperature, be favorable to fire extinguishing agent low-temperature liquefaction. Set up high-efficient heat exchanger 3 and defroster 4 in the withstand voltage shell, and defroster 4 sets up the top at high-efficient heat exchanger 3, let in cold medium in high-efficient heat exchanger 3's the pipeline, build the cold low temperature environment who trades liquefaction separator 2, the gas that lets in is behind high-efficient heat exchanger 3, fall to cold 2 bottoms of trading liquefaction separator after the fire extinguishing agent liquefaction, a small amount of smuggleing the fire extinguishing agent liquid drop secretly in the mist of fire extinguishing agent that does not liquefy and nitrogen gas, it can block the liquid drop to set up defroster 4, the liquid drop of entrapment can be retrieved.
The balance recovery barrel 5 is connected with the bottom of the cold-exchange liquefaction separator 2, the liquefied fire extinguishing agent is discharged into the balance recovery barrel 5 for storage, the pressure controller 9 is arranged at the upper part of the cold-exchange liquefaction separator 2, the signal end of the pressure controller 9 is connected with the exhaust electromagnetic valve 10, the pressure controller 9 sets the upper and lower pressure values, when the pressure is lower than the set value, the pressure controller 9 controls the exhaust electromagnetic valve 10 to be closed, when the pressure is higher than the set value, the pressure controller 9 controls the exhaust electromagnetic valve 10 to be opened, and the gas treated by the previous stage is discharged into the next stage of cold-exchange liquefaction separator 2; the lower part of the cold-exchange liquefaction separator 2 is provided with a liquid level controller 7, the signal end of the liquid level controller 7 is connected with a liquid discharge electromagnetic valve 8, the liquid level controller 7 sets an upper pressure value and a lower pressure value, when the liquid level is higher than the upper liquid level value, the liquid discharge electromagnetic valve 8 is controlled to be opened by the liquid level controller 7, the liquid fire extinguishing agent is discharged into the balance recovery barrel 5, and when the liquid level is lower than the set lower liquid level value, the liquid discharge electromagnetic valve 8 is controlled to be closed by the liquid level controller 7. The pressure controller 9 and the liquid level controller 7 are commercially available mature components, and parameters are set as required.
Common gas fire extinguishing agents include heptafluoropropane, hexafluoropropane, halon (1211, 1301) and the like, and when the fire extinguishing agent is used, the fire extinguishing agent is pressed out by high-pressure nitrogen to extinguish fire, and the physical properties of the heptafluoropropane are as follows: the boiling point is-16.4 ℃, the freezing point is-131 ℃, the critical temperature is 101.7 ℃ and the critical pressure is 2.912 MPa.
Physical properties of hexafluoropropane: boiling point is-1.4 deg.C, solidifying point is-93.6 deg.C, critical temperature is 124.9 deg.C, and critical pressure is 3.20 MPa.
1211 physical properties: the boiling point was-2.55 ℃.
1301 physical properties: the boiling point was-57.85 ℃.
Physical properties of nitrogen: the boiling point was-195.55 ℃.
The utility model discloses a working process:
(1) when a plurality of fire extinguishing agent mixed gases are treated, the collected mixed gases are conveyed into a purifier 1, the gases absorbed by the purifier 1 are conveyed into a primary cold-exchange liquefaction separator 2, and the type of a cold medium in the primary cold-exchange liquefaction separator 2 is selected according to the components of the mixed gases, so that the fire extinguishing agent with a higher boiling point is liquefied and separated firstly; and the unliquefied mixed gas enters the next-stage cold-liquid exchange separator 2 for liquefaction and separation, and the rest is done in the same way until various fire extinguishing agents are separated from the nitrogen, and finally the nitrogen is discharged.
(2) When a single fire extinguishing agent is recovered, the collected mixed gas is conveyed into a purifier 1, the gas after adsorption treatment by the purifier is conveyed into a first-stage cold exchange liquefaction separator 2, and a cold medium is selected according to the type of the fire extinguishing agent, so that most of the fire extinguishing agent is liquefied and separated; the concentration of the fire extinguishing agent in the residual gas is reduced, the fire extinguishing agent enters the next-stage cold liquid-exchanging separator 2 for liquefaction and separation, the cold medium is replaced or the temperature of the cold medium is adjusted, so that the fire extinguishing agent in the gas is further liquefied, the process is analogized in sequence, multi-stage recovery is carried out as required, and finally nitrogen is discharged.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (3)
1. The multistage separation and recovery system for fire extinguishing agents is characterized in that: the fire extinguishing agent multi-stage separation and recovery system comprises a purifier and a plurality of cold-exchange liquefaction separation units, wherein the purifier is communicated with the first-stage cold-exchange liquefaction separation unit through a pipeline, and the cold-exchange liquefaction separation units are connected in series through pipelines; cold trade liquefaction separation unit include cold trade liquefaction separator, balanced recycling bin, liquid level controller, pressure controller, flowing back solenoid valve, exhaust solenoid valve, cold trade liquefaction separator includes withstand voltage shell, high-efficient heat exchanger and defroster, set up high-efficient heat exchanger and defroster in the withstand voltage shell, and the defroster setting is in high-efficient heat exchanger's top, balanced recycling bin links to each other with cold trade liquefaction separator bottom, cold trade liquefaction separator upper portion sets up pressure controller, pressure controller's signal terminal links to each other with exhaust solenoid valve, cold trade liquefaction separator lower part sets up liquid level controller, liquid level controller's signal terminal links to each other with the flowing back solenoid valve.
2. The fire extinguishing agent multi-stage separation and recovery system according to claim 1, wherein: the cold exchange liquefaction separation unit is at least two stages.
3. The fire extinguishing agent multi-stage separation and recovery system according to claim 1, wherein: and a heat-insulating layer is arranged outside a pressure-resistant shell of the cold-exchange liquefaction separator, and a cold insulation coil is wound outside the heat-insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020765084.9U CN212262432U (en) | 2020-05-11 | 2020-05-11 | Fire extinguishing agent multi-stage separation recovery system disappears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020765084.9U CN212262432U (en) | 2020-05-11 | 2020-05-11 | Fire extinguishing agent multi-stage separation recovery system disappears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212262432U true CN212262432U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020765084.9U Expired - Fee Related CN212262432U (en) | 2020-05-11 | 2020-05-11 | Fire extinguishing agent multi-stage separation recovery system disappears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212262432U (en) |
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2020
- 2020-05-11 CN CN202020765084.9U patent/CN212262432U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |