CN116538697A - Single-machine multi-stage compression system and application method thereof - Google Patents

Single-machine multi-stage compression system and application method thereof Download PDF

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Publication number
CN116538697A
CN116538697A CN202310670174.8A CN202310670174A CN116538697A CN 116538697 A CN116538697 A CN 116538697A CN 202310670174 A CN202310670174 A CN 202310670174A CN 116538697 A CN116538697 A CN 116538697A
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CN
China
Prior art keywords
stage
vocs
condenser
valve
vocs condenser
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.)
Withdrawn
Application number
CN202310670174.8A
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Chinese (zh)
Inventor
秦黄辉
王宇轩
于世永
唐景远
惠泽
黄佳烽
李嘉锦
北洋铭
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Jiangsu Vocational and Technical Shipping College
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Jiangsu Vocational and Technical Shipping College
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Priority to CN202310670174.8A priority Critical patent/CN116538697A/en
Publication of CN116538697A publication Critical patent/CN116538697A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

The invention discloses a single-machine multi-stage compression system and a use method thereof, wherein a main body comprises a W-shaped slide valve, a driving compression screw is arranged on the inner side of the W-shaped slide valve, a slide valve piston is connected to the top end of the driving compression screw, the middle part of the driving compression screw is connected with the rotary drive on the outer side of the W-shaped slide valve through a gear, a plurality of air suction ports are arranged on the side face of the W-shaped slide valve, a condensation compression air outlet port is arranged on one side of the W-shaped slide valve, a filter and a check valve are sequentially connected to the plurality of air suction ports through a conduit, the other end of the check valve is connected with a refrigeration system through a pressurizing conduit, the refrigeration system comprises a first-stage VOCs condenser, a second-stage VOCs condenser, a third-stage VOCs condenser and a fourth-stage VOCs condenser, and the first-stage VOCs condenser, the second-stage VOCs condenser, the third-stage VOCs condenser and the fourth-stage VOCs condenser are sequentially connected end to end by end, and the device has simple structure, convenient operation and use, and can finally realize recovery of high-value gaseous medium under different condensation temperatures through a set of compression device.

Description

Single-machine multi-stage compression system and application method thereof
Technical Field
The invention relates to the technical field of compression system equipment, in particular to a single-machine multi-stage compression system and a use method thereof.
Background
The compressor can be divided into a plurality of types according to different purposes, wherein the reciprocating working principle is mainly utilized to compress gas into the storage tank, the compressor can be used in many places in the actual society, such as air conditioning refrigeration, automobile tire inflation, pigment spraying, liquefied oil gas collecting and split charging, and the like, the compressor is not only purely rated compressed air or compressed and recycled valuable gaseous media, the most basic air compressor does not need to consider excessive external factors, only the reciprocating compressor is needed, but the traditional compressor cannot be used when toxic gas or valuable gas is treated, the traditional compressor is accompanied by high temperature, the flammable gas is likely to be ignited to cause explosion, only an indirect compression collecting method is adopted, such as cooling before compression or the whole compression process equipment is in a low-temperature environment, but the quick and efficient recovery of the oil gas can not be realized in many times in the oil gas collecting process, a plurality of equipment are needed to work cooperatively in most cases, the actual working efficiency of the equipment is higher than that of the oil gas generated in real time, the problem that the equipment is needed to be treated for secondary work is solved in some cases, and the problem is solved.
Disclosure of Invention
The invention aims to provide a single-machine multistage compression system which is simple in structure and convenient to operate and use, can be matched with a plurality of condensers through a set of compression equipment, and can finally realize recovery of high-value gaseous medium under the condition of different condensation temperatures among partitions, and a use method thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions: a single-machine multi-stage compression system and its application method, its main body includes W-shaped slide valve, the inner side of the W-shaped slide valve is equipped with driving compression screw, the top end of the driving compression screw is connected with slide valve piston, the middle of the driving compression screw is connected with rotary driving of outer side of the W-shaped slide valve by means of gear, the side surface of the W-shaped slide valve is equipped with several air suction ports, one side of the W-shaped slide valve is equipped with condensing compression air outlet port, several air suction ports are sequentially connected with filter and check valve by means of conduit, another end of the check valve is connected with refrigeration system by means of supercharging conduit, the refrigeration system includes primary VOCs condenser, secondary VOCs condenser, tertiary VOCs condenser and quaternary VOCs condenser, the one-level VOCs condenser, the second grade VOCs condenser, tertiary VOCs condenser, four-level VOCs condenser end to end in proper order, one-level VOCs condenser, second grade VOCs condenser, tertiary VOCs condenser, four-level VOCs condenser bottom is connected with the storage tank through the solenoid valve respectively, refrigerating system one end is connected with the fan runner, one-level VOCs condenser, second grade VOCs condenser, tertiary VOCs condenser, four-level VOCs condenser outside is equipped with condensation circulation respectively and gives vent to anger the port, condensation circulation inlet port, inlet port and outlet port, condensation circulation inlet port outside is connected with the governing valve respectively, the governing valve is in the same place through condensation inlet pipeline is parallelly connected, condensation circulation outlet port connects the supercharging catheter.
Preferably, the inner side of the W-shaped slide valve is provided with two relatively independent screw working cavities, the middle part of each screw working cavity is provided with an air guide slot hole, one end of each screw working cavity is provided with a screw gear groove, the other end of each screw working cavity is provided with a slide valve piston groove, one side of each slide valve piston groove is provided with a piston pressurizing groove, the other side of each slide valve piston groove is communicated with a slide valve air outlet port, the side face of each screw working cavity is provided with a buffer air guide slot hole in a matched manner, and one side of each piston pressurizing groove is communicated with the air guide slot hole.
Preferably, one end of the driving compression screw is provided with a driven gear, the other end of the driving compression screw is provided with a double-lug boss, and the double-lug boss is connected with the slide valve piston in a sliding manner.
Preferably, one end of the slide valve piston is provided with a stress component corresponding to the double-lug boss, the top end of the slide valve piston is provided with a return spring, the side surface of the slide valve piston is provided with a piston ring, and the side surface of the piston ring is provided with a piston buffer air groove.
Preferably, a decompression air release valve is arranged at the top end of one side of the storage tank, a release port is arranged at the bottom end of the storage tank, and a storage scale is arranged on the side face of the storage tank.
Preferably, one end of the fan rotating wheel is connected with an exhaust gas release pipeline, the other end of the exhaust gas release pipeline is provided with a release air inlet port, and the exhaust gas release pipeline is sequentially connected with an air outlet low-pressure valve and an air outlet high-pressure valve from the release air inlet port to the fan rotating wheel.
Preferably, the specific implementation comprises the following steps: step one, high-value gas is led into a refrigerating system, a primary VOCs condenser, a secondary VOCs condenser, a tertiary VOCs condenser and a quaternary VOCs condenser start to work, and condensed gas is liquefied and recycled into a storage tank through an electromagnetic valve; step two, enabling the gaseous condensing medium to enter a W-shaped slide valve through a pressurizing guide pipe for compression by a first-stage VOCs condenser, a second-stage VOCs condenser, a third-stage VOCs condenser and a fourth-stage VOCs condenser, and enabling the gaseous condensing medium to flow back to the first-stage VOCs condenser, the second-stage VOCs condenser, the third-stage VOCs condenser and the fourth-stage VOCs condenser after treatment, wherein the condensing temperature of the first-stage VOCs condenser, the second-stage VOCs condenser, the third-stage VOCs condenser and the fourth-stage VOCs condenser is gradually reduced; and thirdly, after the four-stage VOCs condenser finishes processing the gas, discharging the gas without recovery value outdoors through the air outlet low-pressure valve and the air outlet high-pressure valve matched with a fan rotating wheel.
Preferably, in the first step, the check valve is opened unidirectionally; the solenoid valve is selectively opened and closed, liquid state enters the storage tank under the pressure effect after condensation, redundant gas is discharged through the decompression air release valve, the regulating valve is intermittently opened and closed, the regulating valve is opened when the pressure of recovered gas is insufficient, and when the reflux gas enters the VOCs condenser, the regulating valve corresponding to the VOCs condenser can be selectively closed or opened according to actual needs, or the air inflow is directly regulated, so that the split flow is realized.
Preferably, the second step is to cool down the introduced high value gas first if the temperature of the introduced high value gas is too high, the temperature of the first-stage VOCs condenser is controlled to be 20-0 ℃, the temperature of the second-stage VOCs condenser is controlled to be 0-30 ℃, the temperature of the third-stage VOCs condenser is controlled to be-30-40 ℃, and the temperature of the fourth-stage VOCs condenser is controlled to be-40-50 ℃.
Preferably, in the third step, if the recovered gas is dangerous, the recovered gas can be filtered or treated in other modes before being discharged into the air, for example, the recovered gas is still valuable, and can be additionally connected with corresponding equipment through a pipeline for reprocessing.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention has simple structure and convenient operation and use, can cooperate with a plurality of condensers through a set of compression equipment, and finally realize the recovery of high-value gaseous medium under the condition of different condensation temperatures among partitions, the W-shaped slide valve is respectively connected with the plurality of condensers through pipelines to carry out unified gas recovery, thus greatly improving the operation efficiency of the equipment, the condensation processes are respectively carried out, the smooth condensation of oil gas in the flowing process under the condition of different temperatures is not interfered with each other, the continuous recovery of valuable gaseous medium can be realized, the W-shaped slide valve can improve the air tightness of the rotor, and the loss of refrigerant and the loss of unit output power are reduced.
(2) The W-shaped slide valve can treat condensed gas generated by a plurality of condensers, so that the working efficiency of the condensed gas can be greatly improved, the space occupied by a condensing system is reduced, the refrigerating system condenses through the partition, the recovery efficiency of high-temperature gaseous media with recovery value can be greatly improved, and the recovery cost is reduced.
(3) The filter can purify condensing medium, avoid granule impurity to damage compressor and condenser, the check valve can prevent gaseous condensing medium backward flow, the governing valve can be opened according to the selectivity, actual working process can be according to actual need and adjust pressure value, avoid influencing the normal work of associated condenser, the air guide slotted hole cooperation screw rod cavity can form W shape cavity, the piston pressurized tank cooperation slide valve piston and the piston buffering gas tank in slide valve piston groove can improve condensing medium's compression efficiency, the buffering gas tank can make the pipeline supply gas more smoothly can reduce pipeline vibration efficiency greatly, through the whole output stability of equipment.
(4) The double-lug boss is matched with the stress component to drive the slide valve piston to do reciprocating motion so as to finish the work of compressing gaseous condensing medium, the decompression air release valve can lead out redundant gas after liquefying the gas with recovery value into the storage tank, the release port can facilitate the gas with recovery value to be led out after liquefying, the storage scale can facilitate the observation of recovery results by a user, the air outlet low-pressure valve and the air outlet high-pressure valve can prevent gas from flowing out quickly and keep the internal pressure of the four-stage VOCs condenser and other condensers, the air outlet low-pressure valve can be matched with the air outlet high-pressure valve in a low-pressure environment to keep a pipeline smooth, the air outlet low-pressure valve is closed when the pressure reaches a low-pressure critical value, the air outlet low-pressure valve is opened, the air outlet high-pressure valve is closed when the pressure reaches the high-pressure critical value, and the air outlet low-pressure valve and the air outlet high-pressure valve are closed quickly when the pressure is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the construction of the W-shaped spool valve of the present invention;
FIG. 3 is a schematic view of the structure of the driving compression screw of the present invention;
FIG. 4 is a schematic illustration of the construction of a spool valve piston of the present invention;
FIG. 5 is a schematic view of the structure of the material storage tank of the present invention;
FIG. 6 is a schematic view of a fan wheel according to the present invention.
In the figure: 1. a W-shaped slide valve; 2. driving a compression screw; 3. a spool valve piston; 4. a gear; 5. rotationally driving; 6. an air intake port; 7. condensing and compressing an air outlet port; 8. a conduit; 9. a filter; 10. a check valve; 11. a boost conduit; 12. a refrigeration system; 13. a primary VOCs condenser; 14. a secondary VOCs condenser; 15. three-stage VOCs condenser; 16. four-stage VOCs condenser; 17. an electromagnetic valve; 18. a storage tank; 19. a fan wheel; 20. a condensing cycle outlet port; 21. a condensing cycle inlet port; 22. an air inlet port; 23. an air outlet port; 24. a regulating valve; 25. condensing an air inlet pipeline; 26. an air guide slot; 27. a screw gear groove; 28. slide valve piston groove; 29. a piston pressurizing groove; 30. a buffer gas tank; 31. a driven gear; 32. a binaural boss; 33. a force-bearing component; 34. a return spring; 35. piston rings; 36. a piston buffer gas tank; 37. a pressure reducing air release valve; 38. releasing the port; 39. a storage scale; 40. an exhaust gas release line; 41. releasing the air inlet port; 42. a low pressure valve for air outlet; 43. a high pressure valve for air outlet; 44. a screw working cavity.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention. In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in figures 1-6, a single-machine multi-stage compression system and a using method thereof are provided, the main body of the single-machine multi-stage compression system comprises a W-shaped slide valve 1, a driving compression screw 2 is arranged on the inner side of the W-shaped slide valve 1, a slide valve piston 3 is connected to the top end of the driving compression screw 2, a plurality of air suction ports 6,W are arranged on the side surface of a rotary driving 5,W-shaped slide valve 1 which is connected to the outer side of the W-shaped slide valve 1 through a gear 4, a condensation compression air outlet port 7 is arranged on one side of the slide valve 1, a plurality of air suction ports 6 are sequentially connected with a filter 9 and a check valve 10 through a guide pipe 8, the other end of the check valve 10 is connected with a refrigerating system 12 through a supercharging guide pipe 11, the refrigerating system 12 comprises a first-stage VOCs condenser 13, a second-stage VOCs condenser 14, a third-stage VOCs condenser 15 and a fourth-stage VOCs condenser 16, the first-stage VOCs condenser 13, the second-stage VOCs condenser 14, the third-stage VOCs condenser 15 and the fourth-stage VOCs condenser 16 are sequentially connected end-to-end-to-end through a gear 4, the first-stage VOCs condenser 13, the second-stage VOCs condenser 14, the third-stage VOCs condenser 15 are sequentially connected with the fourth-stage VOCs condenser 16 are sequentially connected with the first-stage VOCs condenser 13, the third-stage VOCs condenser 14, the third-stage VOCs condenser 16 through the third-stage VOCs condenser 16, the air intake valve 11 and the fourth-stage condenser 11, the air-stage valve 11 and the air intake valve 11, the air valve 11 and the air-stage valve 11, the air-stage intake valve 11 and the air valve 11, the air-stage valve 11 and the air-stage valve 6, and the air by the air.
The inside of the W-shaped slide valve 1 is provided with two relatively independent screw working cavities 44, the middle part of each screw working cavity 44 is provided with an air guide slotted hole 26, one end of each screw working cavity 44 is provided with a screw gear groove 27, the other end of each screw working cavity 44 is provided with a slide valve piston groove 28, one side of each slide valve piston groove 28 is provided with a piston pressurizing groove 29, the other side of each slide valve piston groove 28 is communicated with a slide valve air outlet port 7, the side face of each screw working cavity 44 is matched with an air suction port 6 to be provided with a buffer air groove 30, one side of each piston pressurizing groove 29 is communicated with the air guide slotted hole 26, and the screw working cavities gradually extrude air flow to the bottom of each slide valve piston under the action of driving a compression screw.
One end of the driving compression screw 2 is provided with a driven gear 31, the other end of the driving compression screw 2 is provided with a double-lug boss 32, the double-lug boss 32 is connected with the slide valve piston 3 in a sliding way, the double-lug boss principle is similar to a cam, and when the slide valve piston reciprocates, compressed air flow enters a piston buffer air groove on the side surface of the slide valve piston.
One end of the slide valve piston 3 is provided with a stress component 33 corresponding to the double-lug boss 32, the top end of the slide valve piston 3 is provided with a return spring 34, the side surface of the slide valve piston 3 is provided with a piston ring 35, the side surface of the piston ring 35 is provided with a piston buffer air groove 36, the slide valve piston on one side guides compressed air flow into an air guide slotted hole, and the air guide slotted hole on the other side guides the compressed air flow out through an air outlet port of the slide valve.
The top of one side of the storage tank 18 is provided with a pressure reducing and discharging valve 37, the bottom of the storage tank 18 is provided with a release port 38, the side surface of the storage tank 18 is provided with a storage scale 39, the electromagnetic valve is opened intermittently, liquefied medium is produced, pressure under the action of pressure and gas enter the storage tank, and redundant gas is led out through the pressure reducing and discharging valve.
One end of the fan rotating wheel 19 is connected with an exhaust gas release pipeline 40, the other end of the exhaust gas release pipeline 40 is provided with a release air inlet port 41, the exhaust gas release pipeline 40 is sequentially connected with an air outlet low-pressure valve 42 and an air outlet high-pressure valve 43 from the release air inlet port 38 to the fan rotating wheel 19, the air outlet low-pressure valve can be matched with the air outlet high-pressure valve in a low-pressure environment to keep the pipeline smooth, the air outlet low-pressure valve and the air outlet high-pressure valve form a closed space, when the pressure reaches a low-pressure critical value, the air outlet low-pressure valve is opened, the air outlet high-pressure valve is closed, when the pressure reaches a high-pressure critical value, the air rapidly flows out, and when the pressure is reduced, the air outlet low-pressure valve and the air outlet high-pressure valve are rapidly closed.
The specific implementation method comprises the following steps: step one, high-value gas is led into a refrigerating system 12, a primary VOCs condenser 13, a secondary VOCs condenser 14, a tertiary VOCs condenser 15 and a quaternary VOCs condenser 16 start to work, and condensed gas is liquefied and recycled into a storage tank 18 through an electromagnetic valve 17; step two, a gaseous condensing medium enters a W-shaped slide valve 1 through a pressurizing conduit 11 to be compressed by a primary VOCs condenser 13, a secondary VOCs condenser 14, a tertiary VOCs condenser 15 and a quaternary VOCs condenser 16, and after treatment, the gaseous condensing medium flows back into the primary VOCs condenser 13, the secondary VOCs condenser 14, the tertiary VOCs condenser 15 and the quaternary VOCs condenser 16, and the condensing temperature of the primary VOCs condenser 13, the secondary VOCs condenser 14, the tertiary VOCs condenser 15 and the quaternary VOCs condenser 16 is gradually reduced; and step three, after the four-stage VOCs condenser 16 finishes processing the gas, the gas without recovery value is discharged outdoors through the low-pressure gas outlet valve 42 and the high-pressure gas outlet valve 43 in combination with the fan rotating wheel 19.
Step one, the check valve 10 is opened unidirectionally; the electromagnetic valve 17 is selectively opened and closed, when the condensed liquid enters the storage tank 18 under the pressure effect, the redundant gas is discharged through the pressure reducing and discharging valve 37, the regulating valve 23 is intermittently opened and closed, when the pressure of the recovered gas is insufficient, the regulating valve 23 is opened, when the returned gas enters the VOCs condenser, the regulating valve 23 corresponding to the VOCs condenser can be selectively closed or opened according to actual needs, or the air inflow is directly regulated, and the split flow is realized.
Step two, if the temperature of the introduced high-value gas is too high, the temperature of the first-stage VOCs condenser 13 is controlled to be 20-0 ℃, the temperature of the second-stage VOCs condenser 14 is controlled to be 0-30 ℃, the temperature of the third-stage VOCs condenser 15 is controlled to be-30-40 ℃, and the temperature of the fourth-stage VOCs condenser 16 is controlled to be-40-50 ℃.
In the third step, if the recovered gas is dangerous, the recovered gas can be filtered or treated in other modes before being discharged into the air, and if the recovered gas is still valuable, the recovered gas can be additionally connected with corresponding equipment through a pipeline for reprocessing.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A stand-alone multi-stage compression system, characterized by: the main part includes W shape slide valve (1), W shape slide valve (1) inboard is equipped with drive compression screw (2), drive compression screw (2) top is connected with slide valve piston (3), drive compression screw (2) middle part is connected rotatory drive (5) in W shape slide valve (1) outside through gear (4), W shape slide valve (1) side is equipped with a plurality of air suction ports (6), W shape slide valve (1) one side is equipped with condensation compression and goes out air port (7), and a plurality of air suction ports (6) are connected with filter (9) and check valve (10) through pipe (8) order, the check valve (10) other end is connected with refrigerating system (12) through booster duct (11), refrigerating system (12) are including one-level VOCs condenser (13), second grade VOCs condenser (14), tertiary VOCs condenser (15) and four-level VOCs condenser (16), one-level VOCs (13), second grade VOCs condenser (14), four-level VOCs condenser (16) end-of being connected in proper order, second grade VOCs condenser (13), second grade VOCs condenser (16) are connected through booster duct (11), refrigerating system (13) one end is connected with fan runner (19), one-level VOCs condenser (13), second grade VOCs condenser (14), tertiary VOCs condenser (15), four-level VOCs condenser (16) outside is equipped with condensation circulation respectively and gives vent to anger port (20), condensation circulation inlet port (21), inlet port (22) and outlet port (23), condensation circulation inlet port (21) outside is connected with governing valve (24) respectively, governing valve (24) are in parallel together through condensation inlet pipeline (25), condensation circulation outlet port (21) connect supercharging catheter (11).
2. A stand-alone multi-stage compression system according to claim 1, wherein: the novel water-saving type water pump is characterized in that two relatively independent screw working cavities (44) are arranged on the inner side of the W-shaped slide valve (1), an air guide slot hole (26) is formed in the middle of each screw working cavity (44), a screw gear groove (27) is formed in one end of each screw working cavity (44), a slide valve piston groove (28) is formed in the other end of each screw working cavity (44), a piston pressurizing groove (29) is formed in one side of each slide valve piston groove (28), a slide valve air outlet port (7) is communicated with the other side of each slide valve piston groove (28), a buffer air groove (30) is formed in the side face of each screw working cavity (44) in a matched mode, and one side of each piston pressurizing groove (29) is communicated with the air guide slot hole (26).
3. A stand-alone multi-stage compression system according to claim 1, wherein: one end of the driving compression screw (2) is provided with a driven gear (31), the other end of the driving compression screw (2) is provided with a double-lug boss (32), and the double-lug boss (32) is connected with the slide valve piston (3) through a sliding way.
4. A stand-alone multi-stage compression system according to claim 1, wherein: the sliding valve is characterized in that a stress component (33) is arranged at one end of the sliding valve piston (3) corresponding to the double-lug boss (32), a return spring (34) is arranged at the top end of the sliding valve piston (3), a piston ring (35) is arranged on the side face of the sliding valve piston (3), and a piston buffer air groove (36) is arranged on the side face of the piston ring (35).
5. A stand-alone multi-stage compression system according to claim 1, wherein: the top of one side of the storage tank (18) is provided with a pressure reducing and air discharging valve (37), the bottom of the storage tank (18) is provided with a release port (38), and the side of the storage tank (18) is provided with a storage scale (39).
6. A stand-alone multi-stage compression system according to claim 1, wherein: one end of the fan rotating wheel (19) is connected with an exhaust gas release pipeline (40), the other end of the exhaust gas release pipeline (40) is provided with a release air inlet port (41), and the exhaust gas release pipeline (40) is sequentially connected with an air outlet low-pressure valve (42) and an air outlet high-pressure valve (43) from the release air inlet port (41) to the fan rotating wheel (19).
7. The method of claim 1, wherein the method comprises the steps of: step one, high-value gas is led into a refrigerating system (12), a primary VOCs condenser (13), a secondary VOCs condenser (14), a tertiary VOCs condenser (15) and a quaternary VOCs condenser (16) start to work, and condensed gas is liquefied and recycled into a storage tank (18) through an electromagnetic valve (17); step two, a gaseous condensing medium enters a W-shaped slide valve (1) through a pressurizing guide pipe (11) to be compressed by a first-stage VOCs condenser (13), a second-stage VOCs condenser (14), a third-stage VOCs condenser (15) and a fourth-stage VOCs condenser (16), and after treatment, the gaseous condensing medium flows back into the first-stage VOCs condenser (13), the second-stage VOCs condenser (14), the third-stage VOCs condenser (15) and the fourth-stage VOCs condenser (16), and the condensing temperature of the first-stage VOCs condenser (13), the second-stage VOCs condenser (14), the third-stage VOCs condenser (15) and the fourth-stage VOCs condenser (16) is gradually reduced; and thirdly, after the four-stage VOCs condenser (16) finishes processing the gas, the gas without recovery value is discharged outdoors through the low-pressure gas outlet valve (42) and the high-pressure gas outlet valve (43) in combination with the fan rotating wheel (19).
8. The method of claim 1, wherein the step of using the stand-alone multi-stage compression system comprises: the first step, the check valve (10) is opened unidirectionally; the electromagnetic valve (17) is selectively opened and closed, when the liquid state after condensation enters the storage tank (18) under the pressure effect, redundant gas is discharged through the decompression air release valve (37), the regulating valve (23) is intermittently opened and closed, when the pressure of the recovered gas is insufficient, the regulating valve (23) is opened, when the reflux gas enters the VOCs condenser, the regulating valve (23) corresponding to the VOCs condenser can be selectively closed or opened according to actual needs, or the air inflow is directly regulated, and the split flow is realized.
9. The method of claim 1, wherein the step of using the stand-alone multi-stage compression system comprises: the second step is to cool down the high value gas when the temperature of the introduced high value gas is too high, the temperature of the first-stage VOCs condenser (13) is controlled to be 20-0 ℃, the temperature of the second-stage VOCs condenser (14) is controlled to be 0-30 ℃, the temperature of the third-stage VOCs condenser (15) is controlled to be-30-40 ℃, and the temperature of the fourth-stage VOCs condenser (16) is controlled to be-40-50 ℃.
10. The method of claim 1, wherein the step of using the stand-alone multi-stage compression system comprises: in the third step, if the recovered gas is dangerous, the recovered gas can be filtered or treated in other modes before being discharged into the air, and if the recovered gas is still valuable, the recovered gas can be additionally connected with corresponding equipment through a pipeline for reprocessing.
CN202310670174.8A 2023-06-07 2023-06-07 Single-machine multi-stage compression system and application method thereof Withdrawn CN116538697A (en)

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Application Number Priority Date Filing Date Title
CN202310670174.8A CN116538697A (en) 2023-06-07 2023-06-07 Single-machine multi-stage compression system and application method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310670174.8A CN116538697A (en) 2023-06-07 2023-06-07 Single-machine multi-stage compression system and application method thereof

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CN116538697A true CN116538697A (en) 2023-08-04

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