CN114183362A - Oil-gas separation device and oil injection screw compressor unit - Google Patents
Oil-gas separation device and oil injection screw compressor unit Download PDFInfo
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- CN114183362A CN114183362A CN202111294669.2A CN202111294669A CN114183362A CN 114183362 A CN114183362 A CN 114183362A CN 202111294669 A CN202111294669 A CN 202111294669A CN 114183362 A CN114183362 A CN 114183362A
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- 238000000926 separation method Methods 0.000 title claims abstract description 141
- 238000002347 injection Methods 0.000 title abstract description 9
- 239000007924 injection Substances 0.000 title abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims description 17
- 239000003921 oil Substances 0.000 description 64
- 230000009471 action Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
Abstract
The invention discloses an oil-gas separation device and an oil injection screw compressor unit, and relates to the technical field of gas-liquid separation equipment. The oil-gas separation device comprises a first shell, an inner cylinder and a first oil-gas separator, wherein the inner cylinder is vertically arranged in the first shell, an annular cavity is formed between the inner cylinder and the first shell, and the annular cavity is communicated with the space inside the inner cylinder. The first housing has a first inlet port in communication with the annular cavity. The first oil-gas separator is arranged in the inner cylinder and comprises a wire mesh separation unit and a blade separation unit. The silk screen separation unit is connected with the blade separation unit, and the oil-gas mixture enters the blade separation unit from the silk screen separation unit. The first shell is provided with a second exhaust port, the second exhaust port penetrates through the inner cylinder body, and the second exhaust port is connected with the blade separation unit. The problem that oil-gas separation device is not convenient for install can be solved to this scheme.
Description
Technical Field
The invention relates to the technical field of gas-liquid separation equipment, in particular to an oil-gas separation device and an oil injection screw compressor unit.
Background
The screw compressor is widely used in the fields of process gas pressurization, refrigeration and the like as low-pressure gas pressurization equipment, lubricating oil is used for lubricating friction pairs such as bearings and the like and reducing the exhaust temperature of a unit, but the oil content of an exhaust port of the compressor is generally required to be very low, and particularly the air supply compressor unit of a power plant, the refrigeration screw compressor unit and the unit with a rear-end designed dehydration device. Therefore, the screw compressor unit is generally designed and provided with an oil-gas separator for reducing the content of lubricating oil in the gas discharged by the screw compressor unit and recycling the collected lubricating oil.
In the related technology, the oil-gas separation device with a single separation mode has large volume and large occupied space.
Disclosure of Invention
The invention discloses an oil-gas separation device and an oil injection screw compressor unit, and aims to solve the problem that the oil-gas separation device is difficult to install.
In order to solve the problems, the invention adopts the following technical scheme:
the oil-gas separation device comprises a first shell, an inner cylinder and a first oil-gas separator, wherein the inner cylinder is vertically arranged in the first shell, an annular cavity is formed between the inner cylinder and the first shell, and the annular cavity is communicated with the space inside the inner cylinder; the first shell is provided with a first air inlet which is communicated with the annular cavity;
the first oil-gas separator is arranged in the inner cylinder and comprises a silk screen separation unit and a blade separation unit, the silk screen separation unit is connected with the blade separation unit, and the oil-gas mixture enters the blade separation unit from the silk screen separation unit;
the first shell is provided with a second exhaust port, the second exhaust port penetrates through the inner cylinder body, and the second exhaust port is connected with the blade separation unit.
Based on this application oil-gas separation device, this application still provides an oil spout screw compressor unit. This oil injection screw compressor unit includes oil injection screw compressor and this application the oil-gas separation device. The oil-gas separation device is used for separating oil-gas mixture discharged by the oil-injection screw compressor.
The technical scheme adopted by the invention can achieve the following beneficial effects:
in the oil-gas separation device disclosed by the embodiment of the invention, gas enters the annular cavity from the first gas inlet and flows along the annular cavity, and large-particle oil drops in the gas impact the inner wall of the first shell or the outer wall of the inner cylinder under the action of self inertia to realize oil-gas separation. And through set up net separation unit and blade separation unit in the barrel makes gas can realize separating the oil in the oil-gas mixture step by step. This scheme not only can separate the oil-gas mixture through the multiform, improves oil-gas separation device's separation precision, extension oil-gas separation device's clean cycle, still with the oil-gas separation unit integration of multiform within the first shell, and then in the in-process of oil-gas separation device installation only need to first shell fixed can, and need not to install respectively the oil-gas separation unit of each well form to reduce oil-gas separation device's the installation degree of difficulty, the oil-gas separation device installation of being convenient for.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic illustration of an oil injected screw compressor package according to an embodiment of the present disclosure;
FIG. 2 is a schematic illustration of a hydrocarbon separation apparatus disclosed in a first embodiment of the present application from a first perspective;
FIG. 3 is a schematic illustration of an oil and gas separation device disclosed in the first embodiment of the present application from a second perspective;
FIG. 4 is a schematic illustration of an oil and gas separation device disclosed in a second embodiment of the present application from a first perspective;
FIG. 5 is a schematic illustration of an oil and gas separation device disclosed in a second embodiment of the present application from a second perspective;
FIG. 6 is a schematic diagram of a first oil separator disclosed in an embodiment of the present application;
FIG. 7 is a schematic diagram of a second gas-oil separator disclosed in an embodiment of the present application;
FIG. 8 is a schematic view of an oil-gas separation panel according to an embodiment of the present disclosure.
In the figure: 100-a first housing; 110-an annular cavity; 120-a first air inlet; 130-an opening; 140-a liquid discharge port; 150-access hole; 160-outer cylinder; 170-a first cover; 180-a second cover; 200-inner cylinder; 300-a first oil-gas separator; 310-a wire mesh separation unit; 320-a blade separation unit; 321-a downcomer; 322-liquid seal cylinder; 323-fixed mount; 324-oil-gas separation plates; 3241-bending part; 325-a second baffle plate; 326-a second exhaust port; 400-a first baffle plate; 500-a second oil-gas separator; 510-a second housing; 520-a second air inlet; 530-coalescing filter element; 540-third exhaust port; 550-a buffer chamber; 560-a baffle; 600-oil injection screw compressor; 700-fixing plate; 800-mounting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to fig. 1 to 8.
Referring to fig. 1 to 4, an oil-gas separation device disclosed in an embodiment of the present application includes a first housing 100, an inner cylinder 200, and a first oil-gas separator 300. The first casing 100 is a basic structure and can provide a mounting base for the inner cylinder 200 and the first oil-gas separator 300.
Referring to fig. 2 and 4, the inner cylinder 200 is vertically disposed in the first housing 100, the annular cavity 110 is formed between the inner cylinder 200 and the first housing 100, and the annular cavity 110 is communicated with a space inside the inner cylinder 200. The first housing 100 has a first inlet port 120, the first inlet port 120 communicating with the annular cavity 110. The first oil separator 300 is disposed in the inner cylinder 200. The first oil separator 300 includes a wire separation unit 310 and a vane separation unit 320. The wire mesh separation unit 310 is connected to the vane separation unit 320, and the oil-gas mixture is introduced from the wire mesh separation unit 310 into the vane separation unit 320. The first casing 100 has a second exhaust port 326, the second exhaust port 326 penetrates the inner cylinder 200, and the second exhaust port 326 is connected to the vane separating unit 320. Illustratively, the gas separated by the vane separating unit 320 exits the oil-gas separating device through the second exhaust port 326.
It should be noted that, the inner cylinder 200 is vertically arranged in the first housing 100, which means that the inner cylinder 200 is arranged in the vertical direction, that is, the axis of the inner cylinder 200 is in the vertical direction, when the oil-gas separation device is in the working state.
Referring to fig. 1, in an alternative embodiment, the oil-gas separation device according to the embodiment of the present application may be used for separating an oil-gas mixture discharged from an oil-injected screw compressor. The oil-injected screw compressor has a first exhaust opening, through which the oil-injected screw compressor discharges an oil-gas mixture with a certain speed to the outside. Further, the first gas inlet 120 is connected to the first gas outlet, so that the gas-oil mixture generated by the oil-injected screw compressor can enter the gas-oil separation device from the first gas inlet 120.
Illustratively, after the oil-gas mixture enters the annular cavity 110 from the first gas inlet 120, the separation of large oil drops from gas can be realized through the action of gravity. The inner cylinder 200 is vertically disposed in the first casing 100, so that the oil-gas mixture can move in a vertical direction under the action between the inner cylinder 200 and the first casing 100 after entering the first casing 100 from the first gas inlet 120.
Illustratively, referring to fig. 2 and 4, the mixture moves from the first inlet port 120 to near the bottom of the first housing 100 in the annular cavity 110. It should be noted that the term "bottom" or "top" as used herein refers to the bottom or top of the first housing 100 when the oil and gas separation device is installed or placed as shown in fig. 1. After passing through the annular chamber 110, large oil droplets can be separated from the oil-gas mixture under the action of gravity.
Referring to fig. 2, 4 and 6, the wire mesh separation unit 310 and the vane separation unit 320 again separate the oil-gas mixture, thereby improving the separation accuracy of the oil-gas separation device. In addition, the wire mesh separation unit 310 and the vane separation unit 320 may be horizontally arranged in the first casing 100 to prevent oil drops, which are formed by the liquid oil separated by the wire mesh separation unit 310 and are collected, from flowing to the vane separation unit 320 under the action of gravity. The first oil-gas separator 300 is arranged in the inner cylinder 200, that is, in the process that the oil-gas mixture enters the first oil-gas separator 300 from the annular cavity 110, the flow direction of the oil-gas mixture is changed, and then the oil-gas mixture can be adsorbed on the inner cylinder 200 and/or the first shell 100 by utilizing the surface tension of the liquid oil, so that the separation precision of the oil-gas separation device is improved. And can prolong the displacement that the oil-gas mixture removed in oil-gas separation device to the liquid in the oil-gas mixture has can be better under the action of gravity deposit downwards, is of value to improving the separation precision of the utilization ratio of first shell 100 inner space and oil-gas separation device.
In the oil-gas separation device in the above embodiment, the wire mesh separation unit 310 and the vane separation unit 320 are disposed in the inner cylinder 200, and the inner cylinder 200 is disposed in the first casing 100, so that an annular space can be formed between the inner cylinder 200 and the first casing 100, and then separation of large oil droplets from gas can be achieved by using gravity or inertia of the large oil droplets. This scheme can be at the oil-gas separation unit of the integrated multiple different forms of first shell 100 in, and then only need with first shell 100 sled dress at the in-process of installation can, and then the oil-gas separation device installation of being convenient for. Moreover, the oil-gas separation units in different forms are integrated in the first housing 100, and the compactness of each oil-gas separation unit can be improved.
Referring to fig. 2, a first end of the inner cylinder 200 is hermetically connected to the top of the first casing 100, an opening 130 is formed between a second end of the inner cylinder 200 and the first casing 100, and the annular chamber 110 is communicated with the space inside the inner cylinder 200 through the opening 130. Illustratively, the first end of the inner cylinder 200 and the top of the first housing 100 may be directly or indirectly connected in a sealing manner. Further, the inner cylinder 200 may be directly fixed to the top of the first casing 100 by screws, and a sealing ring is disposed at a connection position of the inner cylinder 200 and the first casing 100, so as to achieve the sealing connection between the inner cylinder 200 and the first casing 100. The first end of the inner cylinder 200 is sealingly engaged with the top of the first housing 100 in a number of ways, for example: thread fit sealing, sealing with a sealing ring, welding sealing, etc. For this reason, the present embodiment does not limit the specific kind of the first end of the inner cylinder 200 sealingly engaged with the top of the first casing 100. Of course, a mounting bracket may be further provided at the top of the inner cylinder 200, and the first end of the inner cylinder 200 is hermetically connected to the top of the first housing 100 through the mounting bracket. Further, in the case where the inner cylinder 200 is directly and hermetically connected to the top of the first casing 100, the mounting plate 800 is provided inside the inner cylinder 200. Illustratively, the first oil separator 300 is fixedly disposed on the mounting plate 800. Specifically, the first oil separator 300 may be fixed to the mounting plate 800 by bolts.
The top of the first casing 100 is an end of the first casing 100 near the top when the oil-gas separation device is installed or placed in the posture shown in fig. 2 and 4, and is not limited to the end of the first casing 100, and may include a portion of the sidewall of the first casing 100 near the top end.
Referring to fig. 2 and 4, the first casing 100 includes an outer cylinder 160, a first cover 170, and a second cover 180, and the first cover 170 and the second cover 180 are hermetically connected to both ends of the outer cylinder 160, respectively. For example, the first cover 170 and the second cover 180 may be welded and sealed to both ends of the outer cylinder 160. Optionally, the first cover 170 and the second cover 180 are convex heads, conical heads, flat plate heads, or combination heads. For example, the outer cylinder 160 and the inner cylinder 200 may be coaxially disposed such that a gap width between the outer cylinder 160 and the inner cylinder 200 is equal everywhere.
Referring to fig. 2, the first end of the inner cylinder 200 is in sealing engagement with the first cover 170. Illustratively, the inner cylinder 200 is welded to the first cover 170. In another alternative embodiment, the first end of the inner cylinder 200 is provided with a fixing plate 700, and the fixing plate 700 is hermetically connected to the first end of the inner cylinder 200 and the inner sidewall of the outer cylinder 160, respectively. Illustratively, the fixing plate 700 is horizontally disposed.
Referring to fig. 2 and 3, the first gas inlet 120 is oriented tangentially to the first casing 100, so that the flow direction of the oil-gas mixture entering from the first gas inlet 120 can be tangential to the inner cylinder 200, and the oil-gas mixture can make a circular motion along the annular cavity 110, large-particle liquid oil in the oil-gas mixture is separated from gas by using centrifugal force, and the oil-gas mixture is separated in a rotating manner, so that the liquid oil can flow along the inner side wall of the first casing 100 and/or the outer side wall of the inner cylinder 200.
Referring to fig. 4 and 5, the oil-gas separation device further includes a first baffle 400, the first baffle 400 is located between the first casing 100 and the inner cylinder 200, the first baffle 400 is connected to the first casing 100, a first diversion channel is formed between the first baffle 400 and the first casing 100, the first diversion channel is communicated with the first gas inlet 120, and the direction of the gas outlet end of the first diversion channel is tangential to the outer sidewall of the inner cylinder 200. The oil-gas mixture can make a circular motion along the annular cavity 110 under the guidance of the first diversion channel formed by the first baffle plate 400 and the first casing 100, and then large-particle liquid oil in the oil-gas mixture can be separated from gas by using centrifugal force, so that the oil-gas mixture is separated in a rotating manner, and the liquid oil can flow along the inner side wall of the first casing 100 and/or the outer side wall of the inner cylinder 200. It should be noted that the air outlet end of the first flow guide channel refers to: the gas in the first flow guide channel enters one end of the annular cavity 110 from the first flow guide channel.
In an alternative embodiment, the first baffle 400 may be disposed in a spiral shape, and the first baffle 400, the first casing 100 and the inner cylinder 200 may enclose a spiral airflow channel, so as to perform a flow guiding function. Further, the first baffle 400 is inclined downward from a side near the first casing 100 to a side near the inner cylinder 200, so that the liquid attached to the first baffle 400 can flow toward the bottom of the first casing 100 along the connection between the first baffle 400 and the outer wall of the inner cylinder 200. Of course, the first baffle 400 is inclined upward from the side close to the first casing 100 to the side close to the inner cylinder 200, so that the liquid attached to the first baffle 400 can flow toward the bottom of the first casing 100 along the joint between the first baffle 400 and the inner wall of the first casing 100, thereby preventing the liquid droplets from being carried by the oil-gas mixture again.
Referring to fig. 2 and 4, the first gas inlet 120 is communicated with one end of the annular cavity 110 far away from the opening 130, so as to further fully utilize the annular cavity 110 between the inner cylinder 200 and the first outer shell 100, further extend the length of the flow path of the oil-gas mixture in the first outer shell 100, and improve the oil-gas separation precision of the oil-gas separation device. Further, the first oil-gas separator 300 is located at one end of the inner cylinder 200 far away from the opening 130, which not only can reserve enough space for the bottom of the first casing 100 to store separated liquid, but also can extend the length of the flow path of the oil-gas mixture in the first casing 100.
Referring to fig. 8, the vane separating unit 320 includes a plurality of oil-gas separating plates 324, the oil-gas separating plates 324 are arranged at intervals, and a second flow guiding channel is formed between two adjacent oil-gas separating plates 324. The oil-gas separation plate 324 has at least one bent portion 3241, the bent portion 3241 is provided with a second baffle 325, the second baffle 325 protrudes toward the second flow guide channel, and the second baffle 325 is inclined with respect to the flow guide direction of the second flow guide channel. Illustratively, the second baffle 325 has an arcuate groove oriented opposite to the direction of flow of the mixture in the second diversion passage so that the second baffle 325 can act on the flowing mixture and cause the mixture to swirl within the second diversion passage.
In the above embodiment, the oil-gas separation plate 324 can extend the length of the flow path of the oil-gas mixture in the first oil-gas separator 300 by providing the bent portion 3241. In addition, the second baffle 325 is disposed at the bent portion 3241, which is not only beneficial to the attachment of the liquid oil in the oil-gas mixture to the second baffle 325, but also can change the flow direction of the oil-gas mixture in the second flow guide channel through the second baffle 325 to form a vortex, thereby being beneficial to the separation of the liquid oil and the gas and improving the separation accuracy of the oil-gas separation device.
Referring to fig. 2 and 4, the vane separating unit 320 further includes a downcomer 321 and a hydraulic cylinder 322; the first end of the downcomer 321 is connected to the bottom shell of the vane separating unit 320, the second end of the downcomer 321 is inserted into the liquid sealing cylinder 322, and a liquid discharge cavity is formed between the downcomer 321 and the liquid sealing cylinder 322 and is communicated with the inner space of the first casing 100. Exemplarily, the vane separating unit 320 further includes a fixing frame 323, and the downcomer 321 and the hydraulic sealing cylinder 322 are fixed to the inner cylinder 200 and/or the first casing 100 by the fixing frame 323.
In the above embodiment, the second end of the downcomer 321 can be sealed by using the liquid in the liquid sealing cylinder 322, so as to prevent the oil-gas mixture from directly entering the blade separation unit 320 along the downcomer 321, and ensure that the oil-gas separation device gradually separates the oil-gas mixture.
In an alternative embodiment, the housing of the wire mesh separation unit 310 and the housing of the vane separation unit 320 are of an integral structure, and the oil drops separated by the wire mesh separation unit 310 can flow into the bottom of the housing of the vane separation unit 320 along the bottom of the housing of the wire mesh separation unit 310.
Referring to fig. 2 and 4, the first casing 100 has a liquid discharge port 140, and the liquid discharge port 140 is located at a lower portion of the first casing 100 to exclude the separated liquid from the first casing through the liquid discharge port 140. Further alternatively, the drain port 140 may be connected to an oil circulation pipe to realize oil recycling. For example, the drain port 140 may be connected to an oil circulation pipe in the oil-injected screw compressor to realize oil circulation.
In an alternative embodiment, the screen separating unit 310 includes a plurality of screen separating blocks, which are detachably connected to each other. The plurality of screen separation blocks are detachably connected to each other, so that the screen separation unit 310 can be conveniently cleaned and maintained.
In an alternative embodiment, the first casing 100 is provided with a service opening 150 at the top, and the service opening 150 is arranged opposite to the first gas-oil separator 300 so as to facilitate the service or replacement of the first gas-oil separator 300. Alternatively, the first cover 170 may be detachably coupled to the outer cylinder 160 to form the access opening 150 by opening the first cover 170. In another alternative embodiment, the access opening 150 is opened on the first cover 170.
In an alternative embodiment, the oil-gas separation device further comprises a second oil-gas separator 500, the second oil-gas separator 500 comprises a second housing 510, a second gas inlet 520, a coalescing filter element 530 and a third gas outlet 540, the coalescing filter element 530 is arranged in the second housing 510, the second gas inlet 520 is communicated with the second gas outlet 326, the oil-gas mixture enters the coalescing filter element 530 from the second gas inlet 520, and the gas passing through the coalescing filter element 530 enters the second housing 510; the third gas outlet 540 communicates with the second housing 510, and the third gas outlet 540 serves to discharge the gas inside the second housing 510. The oil-gas separation precision of the oil-gas separation device can be further improved by further arranging the second oil-gas separator 500 in the embodiment, so that the oil content of the gas discharged from the third gas outlet 540 can reach below 1 ppm.
In an alternative embodiment, the second gas-oil separator 500 further includes a buffer chamber 550, the buffer chamber 550 is located between the second gas inlet 520 and the coalescing filter element 530, and the second gas inlet 520 is communicated with the coalescing filter element 530 through the buffer chamber 550. The scheme can effectively reduce the impact force of the oil-gas mixture on the coalescing filter element 530, and the purpose of protecting the coalescing filter element 530 is achieved. In an alternative embodiment, the second gas inlet 520 is oriented to intersect the gas inlet direction of the coalescing filter element 530 to increase the resistance of the gas to entering the coalescing filter element 530, thereby reducing the impact of the gas-oil mixture on the coalescing filter element 530. Illustratively, the second air inlet 520 is oriented perpendicular to the air inlet direction of the coalescing filter element 530. Of course, a baffle plate can be arranged in the buffer chamber 550 to change the flow direction of the oil-gas mixture through the baffle plate, so as to reduce the impact force of the oil-gas mixture on the coalescing filter element 530. It should be noted that the air inlet direction of the coalescing filter element 530 refers to the flow direction of the air entering the coalescing filter element 530.
Further, the second gas-oil separator 500 includes a mounting bracket for mounting the coalescing filter element 530. Further, the mounting bracket is provided with a cavity to form a buffer chamber 550 with the second housing 510 through the mounting bracket, thereby achieving the purpose of slowing down the structure of the second gas-oil separator 500 and reducing the volume of the second gas-oil separator 500. In addition, the orientation of the second air inlet 520 is intersected with the air inlet direction of the coalescing filter element 530, which is beneficial to attaching liquid oil to the inner wall of the buffer chamber 550, thereby reducing the oil content in the oil-gas mixture entering the coalescing filter element 530 and prolonging the cleaning period of the coalescing filter element 530.
In an alternative embodiment, the second gas-oil separator 500 further includes a flow guide plate 560, the flow guide plate 560 is disposed in the second housing 510, the flow guide plate 560 and the second housing 510 enclose to form a third flow guide channel, the flow guide plate 560 is opposite to the end of the third gas outlet 540, which communicates with the second housing 510, and the flow guide direction of the third flow guide channel is perpendicular to the direction of the third gas outlet 540. The guide plate 560 not only can prevent the gas from discharging from the third exhaust opening 540 with liquid oil drops, but also is beneficial for the liquid oil to be attached to the guide plate 560, thereby improving the oil-gas separation precision of the oil-gas separation device.
Based on this application embodiment oil-gas separation device, this application still provides an oil spout screw compressor unit. The oil-injected screw compressor unit comprises an oil-injected screw compressor 600 and an oil-gas separation device according to any one of the embodiments of the present application, wherein the oil-injected screw compressor 600 is provided with a first exhaust port, the oil-gas separation device is connected with the first exhaust port, and the oil-gas separation device is used for separating an oil-gas mixture exhausted by the oil-injected screw compressor 600.
The embodiment can reduce the content of the lubricating oil in the exhaust gas of the screw compressor unit and recycle the collected lubricating oil.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (14)
1. The oil-gas separation device is characterized by comprising a first shell (100), an inner cylinder (200) and a first oil-gas separator (300), wherein the inner cylinder (200) is vertically arranged in the first shell (100), an annular cavity (110) is formed between the inner cylinder (200) and the first shell (100), and the annular cavity (110) is communicated with the space inside the inner cylinder (200); the first housing (100) having a first inlet port (120), the first inlet port (120) communicating with the annular cavity (110);
the first oil-gas separator (300) is arranged in the inner cylinder body (200), the first oil-gas separator (300) comprises a wire mesh separation unit (310) and a blade separation unit (320), the wire mesh separation unit (310) is connected with the blade separation unit (320), and oil-gas mixture enters the blade separation unit (320) from the wire mesh separation unit (310);
the first casing (100) has a second exhaust port (326), the second exhaust port (326) penetrates the inner cylinder (200), and the second exhaust port (326) is connected to the vane separating unit (320).
2. The oil-gas separation device according to claim 1, characterized in that the first end of the inner cylinder (200) is connected with the top of the first outer shell (100) in a sealing way, an opening (130) is formed between the second end of the inner cylinder (200) and the first outer shell (100), and the annular cavity (110) is communicated with the space inside the inner cylinder (200) through the opening (130).
3. The oil-gas separation device according to claim 2, wherein the first housing (100) comprises an outer cylinder (160), a first cover body (170) and a second cover body (180), the first cover body (170) and the second cover body (180) are respectively connected with two ends of the outer cylinder (160) in a sealing way,
the first end of the inner cylinder (200) is in sealing fit with the first cover body (170); or, a fixing plate (700) is arranged at the first end of the inner cylinder (200), and the fixing plate (700) is hermetically connected with the first end of the inner cylinder (200) and the inner side wall of the outer cylinder (160) respectively.
4. The oil-gas separation device according to claim 2, characterized in that the first gas inlet (120) is oriented tangentially to the first housing (100); alternatively, the first and second electrodes may be,
the oil-gas separation device further comprises a first baffle plate (400), wherein the first baffle plate (400) is located between the first shell (100) and the inner cylinder body (200), the first baffle plate (400) is connected with the first shell (100), a first diversion channel is formed between the first shell (100) and the first diversion channel (400), the first diversion channel is communicated with the first air inlet (120), and the direction of the air outlet end of the first diversion channel is tangent to the outer side wall of the inner cylinder body (200).
5. The oil-gas separation device according to claim 4, characterized in that the first inlet opening (120) communicates with an end of the annular cavity (110) remote from the opening (130).
6. The oil-gas separation device according to any one of claims 2-5, characterized in that the first oil-gas separator (300) is located at the end of the inner cylinder (200) remote from the opening (130).
7. The oil-gas separation device as claimed in claim 6, wherein the vane separation unit (320) comprises a plurality of oil-gas separation plates (324), the oil-gas separation plates (324) are arranged at intervals, and a second flow guide channel is formed between two adjacent oil-gas separation plates (324);
the oil-gas separation plate (324) is provided with at least one bent part (3241), a second baffle plate (325) is arranged on the bent part (3241), the second baffle plate (325) protrudes towards the second flow guide channel, and the second baffle plate (325) is arranged in an inclined mode relative to the flow guide direction of the second flow guide channel.
8. The oil-gas separation device according to claim 6, wherein the vane separating unit (320) further comprises a downcomer (321) and a hydraulic seal cylinder (322); the first end of the downcomer (321) is connected with the shell at the bottom of the blade separation unit (320), the second end of the downcomer (321) is inserted into the liquid sealing cylinder (322), and a liquid discharge cavity is formed between the downcomer (321) and the liquid sealing cylinder (322) and is communicated with the inner space of the first shell (100).
9. The oil-gas separation device according to claim 8, characterized in that the first housing (100) has a drain port (140), the drain port (140) being located at a lower portion of the first housing (100).
10. The oil-gas separation device according to any one of claims 1 to 5, characterized in that the wire mesh separation unit (310) comprises a plurality of wire mesh separation blocks, which are detachably connected to each other.
11. The oil-gas separation device according to any one of claims 1 to 5, characterized in that it further comprises a second oil-gas separator (500), said second oil-gas separator (500) comprising a second housing (510), a second gas inlet (520), a coalescing filter element (530) and a third gas outlet (540),
the coalescing filter element (530) is arranged in the second shell (510), the second air inlet (520) is communicated with the second air outlet (326), the oil-gas mixture enters the coalescing filter element (530) from the second air inlet (520), and the gas passing through the coalescing filter element (530) enters the second shell (510);
the third exhaust port (540) communicates with the second housing (510), and the third exhaust port (540) is used to exhaust the gas inside the second housing (510).
12. The oil-gas separation device according to claim 11, characterized in that the second oil-gas separator (500) further comprises a buffer chamber (550), the buffer chamber (550) is located between the second gas inlet (520) and the coalescing filter element (530), and the second gas inlet (520) communicates with the coalescing filter element (530) through the buffer chamber (550).
13. The oil-gas separation device according to claim 11, wherein the second oil-gas separator (500) further comprises a flow guide plate (560), the flow guide plate (560) is arranged in the second housing (510), the flow guide plate (560) and the second housing (510) enclose to form a third flow guide channel, the flow guide plate (560) is opposite to the end of the third exhaust port (540) communicated with the second housing (510), and the flow guide direction of the third flow guide channel is perpendicular to the orientation of the third exhaust port (540).
14. Oil-injected screw compressor unit, characterized in that, includes oil-injected screw compressor (600) and the oil-gas separation device of any one of claims 1 to 12, oil-injected screw compressor has first exhaust port, oil-gas separation device links to each other with first exhaust port, just oil-gas separation device is used for separating the oil-gas mixture that oil-injected screw compressor got rid of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294669.2A CN114183362A (en) | 2021-11-03 | 2021-11-03 | Oil-gas separation device and oil injection screw compressor unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294669.2A CN114183362A (en) | 2021-11-03 | 2021-11-03 | Oil-gas separation device and oil injection screw compressor unit |
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| CN114183362A true CN114183362A (en) | 2022-03-15 |
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| CN202111294669.2A Pending CN114183362A (en) | 2021-11-03 | 2021-11-03 | Oil-gas separation device and oil injection screw compressor unit |
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