CN212594080U - Deep cooling oil gas recovery device of positive pressure explosion-proof type - Google Patents
Deep cooling oil gas recovery device of positive pressure explosion-proof type Download PDFInfo
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- CN212594080U CN212594080U CN202020654906.6U CN202020654906U CN212594080U CN 212594080 U CN212594080 U CN 212594080U CN 202020654906 U CN202020654906 U CN 202020654906U CN 212594080 U CN212594080 U CN 212594080U
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Abstract
The utility model relates to the technical field of oil gas recovery, and discloses a positive-pressure explosion-proof type cryogenic oil gas recovery device, which comprises an oil gas pipeline, wherein a draught fan is arranged on the oil gas pipeline; the medium flows out of the expansion condenser, flows through the compressor, the air cooler and the expansion valve in sequence, and then flows into the expansion condenser through an inlet of the expansion condenser; the system also comprises an explosion-proof cabin, wherein the compressor and the expansion valve are positioned in the explosion-proof cabin; the expansion condenser cools the oil-gas pipeline to realize oil-gas condensation; the explosion-proof cabin is provided with an air inlet valve and an air outlet valve, and the air inlet valve is communicated with a positive pressure air source. The explosion-proof cabin is designed, the compressor and the electrical equipment are placed in the explosion-proof cabin, the explosion-proof cabin is kept in a positive pressure state all the time, combustible oil gas is prevented from entering the cabin, the purpose of isolating the electrical control system and the compressor system equipment from explosive gas is achieved, and the purpose of overall explosion prevention is achieved.
Description
Technical Field
The utility model relates to an oil gas recovery technical field especially indicates a cryrogenic vapor recovery system device of malleation explosion-proof type.
Background
At present, the domestic compressor is generally difficult to realize explosion-proof type, and in a large-scale oil-gas recovery device, the most used compressor is a semi-closed piston compressor which cannot be completely explosion-proof. Therefore, an oil gas recovery device which overcomes the problem of poor explosion-proof performance of the existing compressor and meets the explosion-proof requirement of oil gas recovery is urgently needed to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cryrogenic vapor recovery system device of explosion-proof type of malleation has solved the poor problem of compressor explosion-proof ability among the prior art.
The technical scheme of the utility model is realized like this: a positive-pressure explosion-proof type deep-cooling oil gas recovery device comprises an oil gas pipeline, wherein an induced draft fan is arranged on the oil gas pipeline; the device is characterized by also comprising an expansion condenser, wherein the outlet of the expansion condenser is communicated with a circulating pipe, the circulating pipe is sequentially provided with a compressor, an air cooler and an expansion valve, and a medium flows out of the expansion condenser, sequentially flows through the compressor, the air cooler and the expansion valve and then flows in through the inlet of the expansion condenser; the expansion valve is arranged in the explosion-proof cabin, and the compressor and the expansion valve are positioned in the explosion-proof cabin; the expansion condenser cools the oil-gas pipeline to realize oil-gas condensation; the explosion-proof cabin is provided with an air inlet valve and an air outlet valve, and the air inlet valve is communicated with a positive pressure air source.
According to a preferable technical scheme, the positive pressure gas source comprises an air inlet cylinder, the air inlet cylinder is communicated with the air inlet valve, and an axial flow fan is arranged in the air inlet cylinder.
As a preferred technical scheme, a pressure detector is arranged in the explosion-proof cabin.
Preferably, the air inlet valve is provided with an air filter.
Preferably, the air inlet valve is located on a side wall or a top wall of the explosion-proof cabin, and the air outlet valve is located on a side wall or a top wall of the explosion-proof cabin.
As a preferable technical scheme, a combustible gas detection alarm instrument is arranged in the explosion-proof cabin.
As the preferred technical scheme, the oil-gas pipeline system further comprises an oil storage tank, and the oil storage tank collects liquid oil condensed by the oil-gas pipeline.
As a preferred technical scheme, a flame arrester is arranged at the downstream end of the oil and gas pipeline.
The beneficial effects of the utility model reside in that: a positive-pressure explosion-proof type deep-cooling oil gas recovery device is characterized in that an explosion-proof cabin is designed, a compressor and electrical equipment are placed in the explosion-proof cabin, the explosion-proof cabin is constantly kept in a positive-pressure state, combustible oil gas is prevented from entering the cabin, the purpose of isolating an electrical control system and compressor system equipment from explosive gas is achieved, and the purpose of overall explosion prevention is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-explosion-proof cabin; 2-an air inlet valve; 3-a pressure transmitter; 4-an axial flow fan; 5-combustible gas detection alarm; 6-exhaust valve; 7-a compressor; 8-a condenser; 9-an expansion valve; 10-a flame arrester; 11-an expansion condenser; 12-a draught fan; 13-oil storage tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and the descriptions of these embodiments are used to help understanding the present invention, but do not constitute a limitation of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
A positive pressure explosion-proof type deep cooling oil gas recovery device is shown in figure 1 and comprises an oil gas pipeline, wherein an induced draft fan 12 is arranged on the oil gas pipeline. Preferably, a flame arrestor 10 is provided at the downstream end of the oil and gas pipeline.
The device also comprises an expansion condenser 11, wherein an outlet of the expansion condenser 11 is communicated with a circulating pipe, a compressor 7, an air cooler 8 and an expansion valve 9 are sequentially arranged on the circulating pipe, and a medium flows out of the expansion condenser, then sequentially flows through the compressor 7, the air cooler 8 and the expansion valve 9, and then flows in through an inlet of the expansion condenser 11.
The explosion-proof cabin 1 is also included, and the compressor 7 and the expansion valve 9 are positioned in the explosion-proof cabin 1; the expansion condenser 11 and the air cooler 8 are arranged outside the explosion-proof cabin 1.
Explosion-proof cabin 1 can adopt 10# channel-section steel and 10# I-steel to constitute for the roofing for the structure skeleton to 2mm thick corrosion resistant plate, electric welding concatenation between the steel sheet, and with rivet fixation between the structure skeleton, the crack is sealed with the rubber strip, in order to guarantee the leakproofness when closing.
The explosion-proof cabin 1 is provided with an air inlet valve 2 and an air outlet valve 6, and the air inlet valve 2 is communicated with a positive pressure air source. The air inlet valve 2 is positioned on the side wall or the top wall of the explosion-proof cabin 1, and the air outlet valve 6 is positioned on the side wall or the top wall of the explosion-proof cabin 1. The exhaust valve 6 can be used as an overhaul operation door and used for gas replacement and exhaust after overhaul is finished.
The explosion-proof cabin 1 is internally provided with a pressure detector, and preferably, the pressure detector selects the pressure transmitter 3 for detecting the pressure in the explosion-proof cabin 1. The pressure transmitter 3 is arranged in the positive pressure explosion-proof cabin 1 and displays the pressure in the explosion-proof cabin 1 in real time.
The pressure transmitter 3 controls the air supply and the air stop of the positive pressure air source, and when the pressure in the explosion-proof cabin 1 is lower than a set value, the positive pressure air source is started to supply air to the explosion-proof cabin 1; and stopping air supply when the pressure in the explosion-proof cabin 1 reaches a set value.
The positive pressure air source can be set according to actual needs. As one embodiment, the air inlet valve 2 of the explosion-proof cabin 1 is directly communicated with a compressed air pipeline, the compressed air pipeline is provided with a switch valve, the switch valve is linked with the pressure transmitter 3, the set pressure in the explosion-proof cabin 1 is higher than the atmospheric pressure by 50Pa, and when the pressure in the explosion-proof cabin 1 is lower than the set pressure, the switch valve is opened to supplement the pressure; when the pressure in the explosion-proof cabin 1 reaches a set value, the switch valve is closed, the indoor pressure is always kept within the range of the set value, and the pressure in the explosion-proof cabin 1 is maintained.
If no compressed air pipeline is provided, an air inlet cylinder can be additionally arranged on the air inlet valve 2, and an axial flow fan 4 is arranged on the air inlet cylinder. The axial flow fan 4 is linked with the pressure transmitter 3. The pressure in the explosion-proof cabin 1 is set to be higher than the atmospheric pressure by 50Pa, when the pressure in the explosion-proof cabin 1 is lower than the set value, the axial flow fan 4 is opened to supplement the pressure, when the pressure in the explosion-proof cabin 1 reaches the set value, the axial flow fan 4 is closed, and the pressure in the explosion-proof cabin 1 is always kept within the set value range.
The expansion condenser 11 cools the oil-gas pipeline to realize oil-gas condensation; the oil storage tank 13 is further included, and the oil storage tank 13 collects liquid oil condensed by the oil-gas pipeline.
Preferably, the air intake valve 2 is provided with an air filter.
The explosion-proof cabin 1 is internally provided with a combustible gas detection alarm instrument 5, the combustible gas alarm instrument 5 is linked with the axial flow fan 4 and the exhaust valve, when the concentration of the combustible gas in the explosion-proof cabin 1 reaches a set value, for example, 5%, the alarm is stopped, and the exhaust valve is opened for gas replacement.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a cryrogenic vapor recovery system device of explosion-proof type of malleation which characterized in that: the system comprises an oil gas pipeline, wherein an induced draft fan is arranged on the oil gas pipeline; the device is characterized by also comprising an expansion condenser, wherein the outlet of the expansion condenser is communicated with a circulating pipe, the circulating pipe is sequentially provided with a compressor, an air cooler and an expansion valve, and a medium flows out of the expansion condenser, sequentially flows through the compressor, the air cooler and the expansion valve and then flows in through the inlet of the expansion condenser; the expansion valve is arranged in the explosion-proof cabin, and the compressor and the expansion valve are positioned in the explosion-proof cabin; the expansion condenser cools the oil-gas pipeline to realize oil-gas condensation; the explosion-proof cabin is provided with an air inlet valve and an air outlet valve, and the air inlet valve is communicated with a positive pressure air source.
2. The deep cooling oil gas recovery device of the positive pressure explosion-proof type according to claim 1, characterized in that: the positive pressure gas source comprises an air inlet cylinder, the air inlet cylinder is communicated with the air inlet valve, and an axial flow fan is arranged in the air inlet cylinder.
3. The deep cooling oil gas recovery device of the positive pressure explosion-proof type according to claim 1, characterized in that: and a pressure detector is arranged in the explosion-proof cabin.
4. The deep cooling oil gas recovery device of the positive pressure explosion-proof type according to claim 1, characterized in that: the air inlet valve is provided with an air filter.
5. The deep cooling oil gas recovery device of the positive pressure explosion-proof type according to claim 1, characterized in that: the air inlet valve is positioned on the side wall or the top wall of the explosion-proof cabin, and the air outlet valve is positioned on the side wall or the top wall of the explosion-proof cabin.
6. The deep cooling oil gas recovery device of the positive pressure explosion-proof type according to claim 1, characterized in that: and a combustible gas detection alarm instrument is arranged in the explosion-proof cabin.
7. The deep cooling oil gas recovery device of the positive pressure explosion-proof type according to claim 1, characterized in that: still include the batch oil tank, the batch oil tank collects the liquid oil of oil gas pipeline condensation.
8. The deep cooling oil gas recovery device of the positive pressure explosion-proof type according to claim 1, characterized in that: and a flame arrester is arranged at the downstream end of the oil and gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020654906.6U CN212594080U (en) | 2020-04-26 | 2020-04-26 | Deep cooling oil gas recovery device of positive pressure explosion-proof type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020654906.6U CN212594080U (en) | 2020-04-26 | 2020-04-26 | Deep cooling oil gas recovery device of positive pressure explosion-proof type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212594080U true CN212594080U (en) | 2021-02-26 |
Family
ID=74710698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020654906.6U Expired - Fee Related CN212594080U (en) | 2020-04-26 | 2020-04-26 | Deep cooling oil gas recovery device of positive pressure explosion-proof type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212594080U (en) |
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2020
- 2020-04-26 CN CN202020654906.6U patent/CN212594080U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |