CN104390425A - Liquefaction and recovery system - Google Patents
Liquefaction and recovery system Download PDFInfo
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- CN104390425A CN104390425A CN201410653574.9A CN201410653574A CN104390425A CN 104390425 A CN104390425 A CN 104390425A CN 201410653574 A CN201410653574 A CN 201410653574A CN 104390425 A CN104390425 A CN 104390425A
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- heat exchanger
- ball valve
- compressor
- valve
- recycling
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Abstract
The invention relates to a liquefaction and recovery system, which comprises a compressor, a heat exchanger, a refrigerating unit and recovery tanks, the inlet of the compressor is connected with a first ball valve, the outlet of the compressor is connected with the inlet of the product flow passage of the heat exchanger sequentially through a pipeline safety valve, a relief valve, a second ball valve and a check valve, the outlet of the product flow passage of the heat exchanger is connected with the recovery tanks through a third ball valve, the tops of the recovery tanks are provided with gas outlets, the gas outlets are connected with the inlet of the compressor sequentially through a fourth ball valve and the first ball valve, and the refrigerating unit communicates with the refrigerant flow passage of the heat exchanger. The system can liquefy and recover liquefied petroleum gas and like poisonous, harmful, flammable and explosive gaseous media, so that the volume and pressure of the recovered substance are greatly reduced, consequently, a user can recover the residual gas of the liquid substance with a small storage space, and thereby the residual gas can be conveniently recycled; moreover, the emptying operation method is avoided, both economy and environment protection win, and potential safety hazards are greatly reduced.
Description
Technical field
The present invention relates to a kind of recovery device of liquefied for liquefied petroleum gas and the similar gaseous medium such as poisonous, harmful and inflammable and explosive.
Background technology
Now at liquefied petroleum gas and the similar gas industry such as poisonous, harmful and inflammable and explosive, (characteristic of this type of gas is being liquidly to exist in some cases, and be not liquid existence in some cases), relate in particular to the units such as the inspection of this type of hazardous materials transportation and hazardous materials transportation vehicle, the residual gaseous product in container is often needed to reclaim or find time, recovery or gaseous product of finding time are wanted minimum and are met two conditions: one is to have the equipment of bleeding, and two is will have the pressure vessel of enough large spaces to be deposited by the gaseous product of extraction.Mostly the air-extractor that now in industry can use is compressor or vavuum pump, and most unit cannot meet second condition, namely the pressure vessel of enough large spaces is not had, this is because, the pressure vessel of enough large spaces is had just to have relatively large economic investment and enough production sites (to exist because the product in container to be found time is gaseous state, gaseous state and liquid maximum difference are exactly that the material mass that can deposit of same volume differs widely, pressure also differs widely), and want the gaseous product in evacuated vellel to accomplish by existing equipment but cannot reclaim, so the most units in industry adopt the form of extracting rear emptying out to carry out operation, economic waste and the pollution of environment can be caused like this, and easily form great potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of liquefied petroleum gas and the similar gaseous medium such as poisonous, harmful and inflammable and explosive can liquefactions and the recovery device of liquefied reclaimed.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: recovery device of liquefied, it comprises compressor, heat exchanger, refrigeration unit and recycling can, the import of compressor is connected with the first ball valve, the outlet of compressor is successively through in-line relief valve, diffusion valve, second ball valve, check-valves is connected with the import of the product runner of heat exchanger, the outlet of the product runner of heat exchanger is connected with recycling can through the 3rd ball valve, the top of recycling can has gas outlet, described gas outlet is successively through the 4th ball valve, first ball valve is connected with the import of compressor, refrigeration unit is connected with the refrigerant flow path of heat exchanger.
By refrigeration unit, cold-producing medium is circulated in the refrigerant flow path of heat exchanger, to realize the reduction of the temperature of heat exchanger.
For the purpose of succinctly describing, recovery device of liquefied of the present invention is referred to as this device below.
The technological process utilizing the liquefaction of this device to reclaim gaseous medium is: will pass in compressor through the first ball valve from being taken out the gaseous medium extracted out in container, compressor carries out supercharging to gaseous medium and carries out 2 grades of water coolings, after cooling, gaseous medium temperature is between 20-30 DEG C, gaseous medium after compressor process enters heat exchanger, by the 3rd ball valve, the gas pressure in heat exchanger is adjusted to 12kg, gaseous medium expands when entering heat exchanger, thus can fully absorption refrigeration temperature, and temperature in heat exchanger is dropped between 0 DEG C to-55 DEG C by refrigeration unit and (needs to regulate temperature according to user), gas is in volume and pressure reduction after supercharging and cooling in heat exchanger, form becomes liquid state from gaseous state, flow in recycling can through the 3rd ball valve after becoming liquid, if gas does not liquefy completely in heat exchanger, gas then in recycling can have gas outlet and again enter compressor through the 4th ball valve and the first ball valve successively and carry out liquefaction flow path from top, until complete the Degree of Liquefaction reaching user and require.
To sum up, liquefied petroleum gas and the similar gaseous medium such as poisonous, harmful and inflammable and explosive can liquefy and reclaim by this device, after such recovery, the volume of material and pressure diminish greatly, enable user just can the residual air of recovering liquid material with little storage area, thus convenient recycling, and avoid the mode using emptying operation, reach the doulbe-sides' victory of economy and environmental protection, and significantly reduce potential safety hazard.
As improvement of the present invention, the quantity of described recycling can is two, and is connected with the 5th ball valve between one of them recycling can and the 3rd ball valve.Adopt above structure, the medium that first flow process can be made not liquefy completely liquefies again through second time flow process.
As improvement of the present invention, the product runner of described heat exchanger is nested in the refrigerant flow path of heat exchanger, and the flow direction of the product runner of heat exchanger is contrary with the flow direction of refrigerant flow path.Adopt above structure, the heat transference efficiency of heat exchanger can be increased.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the use schematic diagram of one embodiment of the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
See Fig. 1 and Fig. 2.
In figure, dotted line represents gas passage, and single solid line express liquid passage, double solid line represents coolant channel.
Recovery device of liquefied, it comprises compressor 1, heat exchanger 2, refrigeration unit 3, first recycling can 41 and the second recycling can 42, the import of compressor 1 is connected with the first ball valve 51, the outlet of compressor 1 is successively through in-line relief valve 6, diffusion valve 7, second ball valve 52, check-valves 8 is connected with the import of the product runner of heat exchanger 2, the outlet of the product runner of heat exchanger 2 is connected with the second recycling can 42 with the first recycling can 41 through the 3rd ball valve 53, the 5th ball valve 55 is connected with between second recycling can 42 and the 3rd ball valve 53, the top of the first recycling can 41 and the second recycling can 42 has gas outlet, described gas outlet is successively through the 4th ball valve 54, first ball valve 51 is connected with the import of compressor 1, refrigeration unit 2 is connected with the refrigerant flow path of heat exchanger 2, the product runner of described heat exchanger 2 is nested in the refrigerant flow path of heat exchanger 2, and the flow direction of the product runner of heat exchanger 2 is contrary with the flow direction of refrigerant flow path, each connection branch road is also provided with Pressure gauge 9, to check the pressure of material at any time.
During use, by vavuum pump 10 by the residual air suction compressor 1 in lng tanker 11, residual air can enter liquefaction recovery process.
Be to be understood that example as herein described and embodiment only in order to illustrate, those skilled in the art can make various amendment or change according to it, when not departing from Spirit Essence of the present invention, all belong to protection scope of the present invention.
Claims (3)
1. recovery device of liquefied, it is characterized in that: it comprises compressor, heat exchanger, refrigeration unit and recycling can, the import of compressor is connected with the first ball valve, the outlet of compressor is connected with the import of the product runner of heat exchanger through in-line relief valve, diffusion valve, the second ball valve, check-valves successively, the outlet of the product runner of heat exchanger is connected with recycling can through the 3rd ball valve, the top of recycling can has gas outlet, described gas outlet is connected with the import of compressor through the 4th ball valve, the first ball valve successively, and refrigeration unit is connected with the refrigerant flow path of heat exchanger.
2. recovery device of liquefied as claimed in claim 1, is characterized in that: the quantity of described recycling can is two, and is connected with the 5th ball valve between one of them recycling can and the 3rd ball valve.
3. recovery device of liquefied as claimed in claim 1 or 2, it is characterized in that: the product runner of described heat exchanger is nested in the refrigerant flow path of heat exchanger, and the flow direction of the product runner of heat exchanger is contrary with the flow direction of refrigerant flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653574.9A CN104390425A (en) | 2014-11-17 | 2014-11-17 | Liquefaction and recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653574.9A CN104390425A (en) | 2014-11-17 | 2014-11-17 | Liquefaction and recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390425A true CN104390425A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410653574.9A Pending CN104390425A (en) | 2014-11-17 | 2014-11-17 | Liquefaction and recovery system |
Country Status (1)
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| CN (1) | CN104390425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177123A1 (en) * | 2016-04-07 | 2017-10-12 | Worthington Industries, Inc. | System for reclaiming liquefied petroleum gas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202836059U (en) * | 2012-06-19 | 2013-03-27 | 王成东 | Intelligent recovery system for recycling CO2 (carbon dioxide) in exhaust |
| CN103673505A (en) * | 2013-11-15 | 2014-03-26 | 苏州金宏气体股份有限公司 | Method for recycling ammonia gas exhausted in LED production |
| CN203605641U (en) * | 2013-11-15 | 2014-05-21 | 国家电网公司 | Cryogenic gas separation system for sulfur hexafluoride recovery |
| CN204254971U (en) * | 2014-11-17 | 2015-04-08 | 蚌埠市金鹏燃气设备制造有限公司 | Recovery device of liquefied |
-
2014
- 2014-11-17 CN CN201410653574.9A patent/CN104390425A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202836059U (en) * | 2012-06-19 | 2013-03-27 | 王成东 | Intelligent recovery system for recycling CO2 (carbon dioxide) in exhaust |
| CN103673505A (en) * | 2013-11-15 | 2014-03-26 | 苏州金宏气体股份有限公司 | Method for recycling ammonia gas exhausted in LED production |
| CN203605641U (en) * | 2013-11-15 | 2014-05-21 | 国家电网公司 | Cryogenic gas separation system for sulfur hexafluoride recovery |
| CN204254971U (en) * | 2014-11-17 | 2015-04-08 | 蚌埠市金鹏燃气设备制造有限公司 | Recovery device of liquefied |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177123A1 (en) * | 2016-04-07 | 2017-10-12 | Worthington Industries, Inc. | System for reclaiming liquefied petroleum gas |
| US10760007B2 (en) | 2016-04-07 | 2020-09-01 | Worthington Industries, Inc. | System for reclaiming liquefied petroleum gas |
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Application publication date: 20150304 |
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| RJ01 | Rejection of invention patent application after publication |