Membrane separation type oil gas recovery device for oil gas
By adopting a worm-shaped channel and a spiral V-shaped membrane structure in the membrane separation device, the problem of insufficient contact area between the mixed gas and the membrane is solved, efficient oil-gas separation is achieved and production difficulty and cost is reduced.
Patent Information
- Application Number
- CN202422027424.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The existing membrane separation device has insufficient contact area between the mixture and the membrane, resulting in low separation efficiency and excessive device volume.
The worm-like channel design is adopted to design the oil-gas selective permeable membrane in a spiral state and expand into a V-shaped structure, increasing the contact area between the mixed gas and the permeable membrane, and separating it through the channel composed of the spiral plate and the side plate. The mixed gas is gradually pressurized and separated in the worm-like channel.
While keeping the device volume unchanged, the oil and gas separation efficiency is significantly improved, the production process is simplified and the cost is reduced.
Smart Images
Figure CN223112721U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil and gas recovery, and specifically relates to a membrane separation type oil and gas recovery device for oil and gas. Background Technique
[0002] The membrane separation type oil and gas recovery device is a device that utilizes the characteristics of special polymer membranes having preferential permeability to hydrocarbons. By applying a certain pressure to push the oil and gas and air mixture, the oil and gas molecules preferentially permeate through the polymer membrane, while the air components are intercepted and discharged, thereby realizing oil and gas recovery. It is an important component in the entire oil and gas recovery system.
[0003] In current membrane separation devices, in order to ensure sufficient contact between the mixture and the membrane and maintain the membrane permeation rate, the membrane permeation is in a planar state and a large area is paved out, which will occupy a certain space, thereby causing the volume of the overall device to increase. Content of the Utility Model
[0004] The purpose of the utility model is to provide a membrane separation type oil and gas recovery device for oil and gas to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A membrane separation type oil and gas recovery device for oil and gas includes a spiral channel. One side of the spiral channel is fixedly communicated with an air suction port. The spiral channel includes a spiral plate. One side of the spiral plate is fixedly installed with a first side plate, and the other side of the spiral plate is fixedly installed with a second side plate. An oil and gas selective permeable membrane is fixedly installed inside the channel formed by the spiral plate, the first side plate, and the second side plate. The oil and gas selective permeable membrane is in a spiral state and unfolds into a V-shaped structure. An oil and gas mixture channel is formed inside the oil and gas selective permeable membrane and the spiral plate, and oil and gas channels are formed on both sides of the oil and gas selective permeable membrane and the spiral plate, the first side plate, and the second side plate.
[0007] Furthermore: A sealing plate is fixedly installed at the opening of the channel formed by the spiral plate, the first side plate, and the second side plate. An oil and gas injection port communicating with the channel is fixedly installed in the middle of the sealing plate.
[0008] Furthermore: An oil and gas discharge port communicating with the channel is fixedly installed at the spiral center point of the first side plate.
[0009] Furthermore: The air suction port includes an air extraction pipe, and a probe pipe end is fixedly installed at one end of the air extraction pipe.
[0010] Furthermore, one end of the inserted pipe end is fixedly installed with a membrane frame. A number of side ports are annularly and equally angularly arranged on the side surface of the membrane frame. A first membrane is fixedly installed at each of the number of side ports, and a second membrane is fixedly installed at the round port of the membrane frame.
[0011] Furthermore, the air extraction pipe is fixedly installed on one side of the second side plate. The inserted pipe end passes through the second side plate and the oil-gas selective permeable membrane, and the membrane frame extends into the oil-gas selective permeable membrane near the V tip.
[0012] Furthermore, the oil-gas injection port is connected and communicated with the oil-gas drying device, the oil-gas discharge port is communicated with the pump body structure, and the air extraction pipe is communicated with the air recovery pipeline.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. The traditional membrane separation type is optimized and designed into a spiral channel, and the oil-gas selective permeable membrane penetrates through the entire spiral channel, dividing the entire spiral channel into a mixed gas channel and an oil-gas channel with equal lengths. The mixed gas enters the interior of the mixed gas channel from the opening of the V-shaped oil-gas selective permeable membrane. As the mixed gas travels in the gradually narrowing mixed gas channel, the mixed gas is squeezed by the oil-gas selective permeable membranes on both sides of the mixed gas channel, and the air pressure gradually increases, thereby accelerating the penetration of the oil and gas in the mixed gas through the oil-gas selective permeable membrane. The entire spiral channel is an effective working area for separation work. While keeping the volume of the overall device unchanged, the contact area between the mixed gas and the oil-gas selective permeable membrane is increased, and the time for the mixed gas to be selectively separated by the oil-gas selective permeable membrane is extended, greatly improving the oil-gas separation efficiency.
[0015] 2. Since the overall structure is a spiral structure, it is relatively difficult to integrally form during production. It is necessary to first curl a strip-shaped plate into a spiral plate, and seal the second side plate on one side of the spiral plate, so that the inserted pipe end extends into the internal channel of the spiral plate. Then, the V-shaped oil-gas selective permeable membrane is fixedly sealed with the inner wall of the spiral plate as the installation basis, and the membrane frame extends into the V-shaped channel in the oil-gas selective permeable membrane, and the connection between the oil-gas selective permeable membrane and the inserted pipe end is sealed. Finally, the first side plate is sealed to complete the assembly of the overall structure. The structure is simple but ingenious, with low production difficulty and low cost. While the spiral plate serves as the main component to construct the separation channel, it also serves as the unfolding support for the oil-gas selective permeable membrane. When the oil-gas selective permeable membrane needs to be replaced, the entire device can be replaced in the entire oil-gas recovery system. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 is the schematic diagram of the split of the spiral channel in the present utility model;
[0018] Figure 3 It is a schematic diagram of the deployment of the oil and gas selective permeable membrane in the present utility model;
[0019] Figure 4 It is a schematic diagram of the connection between the oil and gas selective permeable membrane and the air extraction port in the present utility model;
[0020] Figure 5 It is a schematic diagram of the air extraction port in the present utility model.
[0021] In the figure: 1, spiral channel; 101, spiral plate; 102, first side plate; 103, second side plate; 104, sealing plate; 105, oil and gas injection port; 106, oil and gas selective permeable membrane; 107, oil and gas discharge port; 2, air extraction port; 201, extraction pipe; 202, probe pipe end; 203, membrane frame; 204, side port; 205, first membrane; 206, second membrane. Specific embodiments
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Please refer to Figures 1 to 5 , in the embodiment of the present utility model, a membrane separation type oil and gas recovery device for oil and gas includes a spiral channel 1. One side of the spiral channel 1 is fixedly communicated with an air extraction port 2. The spiral channel 1 includes a spiral plate 101. One side of the spiral plate 101 is fixedly installed with a first side plate 102, and the other side of the spiral plate 101 is fixedly installed with a second side plate 103. An oil and gas selective permeable membrane 106 is fixedly installed inside the channel formed by the spiral plate 101, the first side plate 102, and the second side plate 103. The oil and gas selective permeable membrane 106 is in a spiral state and unfolds into a V-shaped structure. The inside of the oil and gas selective permeable membrane 106 and the spiral plate 101 form an oil and gas mixture channel, and both sides of the oil and gas selective permeable membrane 106 and the spiral plate 101, the first side plate 102, and the second side plate 103 form an oil and gas channel.
[0024] Specifically, the traditional membrane separation is optimized and designed into a spiral channel 1, and the oil-gas selective permeable membrane 106 penetrates through the entire spiral channel 1, dividing the entire spiral channel 1 into a mixed gas channel and an oil-gas channel with equal lengths. The mixed gas enters the interior of the mixed gas channel from the opening of the V-shaped oil-gas selective permeable membrane 106. As the mixed gas travels in the gradually narrowing mixed gas channel, the mixed gas is squeezed by the oil-gas selective permeable membranes 106 on both sides of the mixed gas channel, and the air pressure gradually increases, thereby accelerating the permeation of the oil and gas in the mixed gas through the oil-gas selective permeable membrane 106. The entire spiral channel 1 belongs to the effective working area for separation work. While increasing the contact area between the mixed gas and the oil-gas selective permeable membrane 106, the time for the mixed gas to be selectively separated by the oil-gas selective permeable membrane 106 is extended, greatly improving the oil-gas separation efficiency. Embodiment 1
[0025] As Figure 1 shown, in this embodiment, the oil-gas injection port 105 is interconnected and communicated with the oil-gas drying device, the oil-gas discharge port 107 is communicated with the pump structure, and the suction pipe 201 is communicated with the air recovery pipeline.
[0026] In this embodiment, the collected oil-gas mixed gas is first filtered and then dried by a low-temperature gas drying device, and then introduced into the oil-gas mixture channel through the oil-gas injection port 105. At the same time, the separated oil and gas are pumped out and recovered by the pump structure through the oil-gas discharge port 107 at the end of the oil-gas channel, and a negative pressure is formed in the oil-gas channel to accelerate the separation of the oil-gas selective permeable membrane 106 from the mixed gas and accelerate the progress of the mixed gas in the oil-gas mixture channel.
[0027] As Figures 4 - 5 shown, in this embodiment, a membrane frame 203 is fixedly installed at one end of the probe tube end 202. A plurality of side ports 204 are annularly and equally angularly formed on the side surface of the membrane frame 203. A first membrane 205 is fixedly installed at each of the plurality of side ports 204, and a second membrane 206 is fixedly installed at the round opening of the membrane frame 203; the suction pipe 201 is fixedly installed on one side of the second side plate 103, and the probe tube end 202 passes through the second side plate 103 and the oil-gas selective permeable membrane 106, and the membrane frame 203 penetrates into the oil-gas selective permeable membrane 106 near the V tip.
[0028] During specific implementation, as the mixed gas continuously travels in the oil-gas mixing channel, the oil and gas are continuously separated by the oil-gas selective permeable membrane 106. The oil-gas content of the mixed gas at the tip of the V-shaped oil-gas selective permeable membrane 106 gradually decreases, and the pressure gradually increases. Both the first membrane 205 and the second membrane 206 are hydrophobic and oleophobic selective membranes, which discharge other components of the mixed gas. Embodiment 2
[0029] Based on the first embodiment, in order to make up for the structural state of the spiral channel 1 mentioned in the first embodiment, and it is necessary to penetrate the oil-gas selective permeable membrane 106 through the spiral channel 1 in a spiral structure as well. In actual production, it is difficult to form them integrally.
[0030] As Figures 1 - 4 shown, in this embodiment, a sealing plate 104 is fixedly installed at the opening of the channel formed by the spiral plate 101, the first side plate 102, and the second side plate 103. An oil-gas injection port 105 communicating with the channel is fixedly installed in the middle of the sealing plate 104; an oil-gas discharge port 107 communicating with the channel is fixedly installed at the spiral center point of the first side plate 102; the air extraction port 2 includes an extraction pipe 201, and one end of the extraction pipe 201 is fixedly installed with a probing pipe end 202.
[0031] In specific implementation, since the overall structure is a spiral structure, it is relatively difficult to form it integrally during production. It is necessary to first curl a strip-shaped plate into the spiral plate 101, and encapsulate the second side plate 103 on one side of the spiral plate 101, so that the probing pipe end 202 penetrates into the internal channel of the spiral plate 101. Then, the V-shaped oil-gas selective permeable membrane 106 is fixedly encapsulated with the inner wall of the spiral plate 101 as the installation basis, and the membrane frame 203 penetrates into the V-shaped channel in the oil-gas selective permeable membrane 106. And the connection between the oil-gas selective permeable membrane 106 and the probing pipe end 202 is sealed. Finally, the first side plate 102 is encapsulated to complete the assembly of the overall structure. The structure is simple but ingenious, with low production difficulty and low cost. While the spiral plate 101 serves as the main component to construct the separation channel, it also serves as the unfolding support for the oil-gas selective permeable membrane 106. When the oil-gas selective permeable membrane 106 needs to be replaced, the entire device can be replaced in the entire oil-gas recovery system.
[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
[0033] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A membrane separation type oil and gas recovery device for oil and gas, comprising a spiral channel (1), characterized in that, One side of the spiral channel (1) is fixedly connected to an air extraction port (2). The spiral channel (1) includes a spiral plate (101). One side of the spiral plate (101) is fixedly installed with a first side plate (102), and the other side of the spiral plate (101) is fixedly installed with a second side plate (103). An oil-gas selective permeable membrane (106) is fixedly installed inside the channel formed by the spiral plate (101), the first side plate (102), and the second side plate (103). The oil-gas selective permeable membrane (106) is in a spiral state and unfolds into a V-shaped structure. An oil-gas mixture channel is formed inside the oil-gas selective permeable membrane (106) and the spiral plate (101), and oil-gas channels are formed on both sides of the oil-gas selective permeable membrane (106) and the spiral plate (101), the first side plate (102), and the second side plate (103).
2. The membrane separation type oil and gas recovery device for oil and gas according to claim 1, characterized in that, A sealing plate (104) is fixedly installed at the opening of the channel formed by the spiral plate (101), the first side plate (102), and the second side plate (103). An oil-gas injection port (105) communicating with the channel is fixedly installed in the middle of the sealing plate (104).
3. The membrane separation type oil and gas recovery device for oil and gas according to claim 2, characterized in that, An oil-gas discharge port (107) communicating with the channel is fixedly installed at the spiral center point of the first side plate (102).
4. A membrane separation type oil and gas recovery device for oil and gas according to claim 3, characterized in that, The air extraction port (2) includes an extraction pipe (201), and one end of the extraction pipe (201) is fixedly installed with an inserted pipe end (202).
5. The membrane separation type oil and gas recovery device for oil and gas according to claim 4, characterized in that, One end of the inserted pipe end (202) is fixedly installed with a membrane frame (203). A plurality of side ports (204) are arranged at equal angles in a circular shape on the side surface of the membrane frame (203). A first membrane (205) is fixedly installed at each of the plurality of side ports (204), and a second membrane (206) is fixedly installed at the circular port of the membrane frame (203).
6. The membrane separation type oil and gas recovery device for oil and gas according to claim 5, characterized in that, The extraction pipe (201) is fixedly installed on one side of the second side plate (103). The inserted pipe end (202) passes through the second side plate (103) and the oil-gas selective permeable membrane (106), and the membrane frame (203) is inserted into the oil-gas selective permeable membrane (106) near the V tip.
7. The membrane separation type oil and gas recovery device for oil and gas according to claim 6, characterized in that, The oil-gas injection port (105) is connected and communicated with an oil-gas drying device. The oil-gas discharge port (107) is communicated with a pump body structure. The extraction pipe (201) is communicated with an air recovery pipeline.