Piston compression type petroleum associated gas separating, pressurizing and recycling device

Abstract

The utility model discloses a piston compression type petroleum associated gas separating, pressurizing and recycling device, and belongs to the technical field of petroleum associated gas recycling. Comprising an air inlet pipe, a compression air inlet device, a motor, an air compressor and a gas-liquid separator. One end of the air inlet pipe is connected with a runner pipe, and one end of the runner pipe communicates with the compression air inlet device. The sliding plate is slidably connected with the interior of the main cylinder, first grooves are formed in the two sides of the sliding plate, and the sliding blocks are located in the first grooves and slidably connected with the first grooves. The first spring is located between the sliding block and the first groove, one end of the first sliding rod is connected with the sliding block, and the other end of the first sliding rod penetrates through the first groove and is in sliding connection with the first groove. The second spring is located between the sliding plate and the lower end of the body cylinder. And the other end of the second sliding rod penetrates through the main body cylinder and extends into the limiting device. The problems that an air collecting tank occupies a large space, and meanwhile the utilization rate of an air compressor is not high are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of associated petroleum gas recovery, and particularly relates to a piston compression type associated petroleum gas separation, pressurization and recovery device. Background Technique

[0002] In low-permeability oil fields in China, the dissolved gas-oil ratio is generally high, and the associated gas resources are rich. However, due to the low oil well production and small gas volume in a single well site, and at the same time affected by factors such as block dispersion, large terrain elevation difference, and large gas volume difference, the recovery is difficult. The associated gas that cannot be recovered on site has to be burned through a flare at the well / station yard, which not only wastes a large amount of precious resources but also has a greater impact on the environment. Therefore, the pressurization and recovery of this associated petroleum gas has become an irresistible trend.

[0003] Because the gas volume of the associated gas in some oil wells is not very large, if power equipment such as air compressors is always used to operate and process the associated gas, the utilization rate of the air compressor will not be high and the energy consumption will be large. The associated gas treatment device system will use a gas collection tank to collect the associated gas first and then process it uniformly. However, usually the gas collection tank has a large volume, which occupies a large area of the site and increases the material cost at the same time. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a piston compression type associated petroleum gas separation, pressurization and recovery device to solve the problems that the gas collection tank is large and occupies the site, and at the same time the utilization rate of the air compressor is not high.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The piston compression type associated petroleum gas separation, pressurization and recovery device of the utility model includes an air inlet pipe, a compression air inlet device, a motor, an air compressor and a gas-liquid separator. One end of the air inlet pipe is connected with a flow pipe, one end of the flow pipe is communicated with the compression air inlet device, one end of the flow pipe is communicated with the side of the compression air inlet device. The compression air inlet device collects the gas to make the gas reach a certain air pressure and then discharges it through the flow pipe. One end of the flow pipe is connected with the air compressor, the motor is connected with one side of the air compressor, the outlet end of the air compressor is connected with the gas-liquid separator, the outlet end of the gas-liquid separator is connected with a radiator, and the outlet end of the radiator is connected with an oil delivery pipe.

[0007] Further, the compressed air intake device includes: a main body cylinder, a slide plate, a first spring, a slider, a first slide rod, a second spring, a second slide rod, and a limiting device. The lower end of the flow pipe is communicated with the upper part of the main body cylinder. The slide plate is slidably connected to the inside of the main body cylinder. First grooves are formed on both sides of the slide plate. The slider is located in the first groove and is slidably connected to the first groove. The first spring is located between the slider and the first groove. One end of the first slide rod is connected to the slider, and the other end of the first slide rod passes through the first groove and is slidably connected to the first groove. A plurality of second grooves are formed on the inner side wall of the main body cylinder. The second spring is located between the slide plate and the lower end of the main body cylinder. The limiting device is located at the lower part of the main body cylinder. One end of the second slide rod is connected to the slide plate, and the other end of the second slide rod passes through the main body cylinder and extends into the limiting device. One end of the flow pipe is communicated with the side surface of the main body cylinder.

[0008] Further, the limiting device includes: a sliding cylinder, a first magnetic block, and a second magnetic block. The sliding cylinder is fixedly connected to the lower part of the main body cylinder. There are multiple second magnetic blocks which are connected to the inner side of the sliding cylinder. The lower end of the second slide rod is fixedly connected to the first magnetic block.

[0009] Further, every two of the plurality of second grooves form a group, and there are two groups of second grooves which are respectively arranged on the inner side of the main body cylinder.

[0010] Further, every two of the plurality of second magnetic blocks form a group, and there are two groups of second magnetic blocks which are respectively arranged on the inner side of the sliding cylinder.

[0011] Further, a filter is connected to one end of the flow pipe.

[0012] Further, two one-way valves are connected to the flow pipe.

[0013] The beneficial effects of the present utility model are as follows:

[0014] For a piston compression type associated petroleum gas separation, pressurization and recovery device of the present utility model, when there is a certain amount of associated gas, the associated gas will enter the flow pipe and other electrical components through the compressed air intake device to perform separation operations on the associated gas, avoiding waste of resources caused by long-term opening of electrical components; when the associated gas presses on the slide plate, when the air pressure is large enough, the slider is forced to retract from the second groove into the first groove. At this time, the slide plate slides and no longer blocks the associated gas, so that the associated gas can flow out from the flow pipe on the side surface of the main body cylinder; through the limiting device, the slide plate is clamped more tightly, so that the first magnetic block and the second magnetic block will no longer adsorb until a relatively large air pressure is reached.

[0015] Other advantages, objectives and features of the present utility model will be described in the subsequent specification, and to a certain extent, they are obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following specification. Description of the Drawings

[0016] To make the objectives, technical solutions and beneficial effects of the present utility model clearer, the following drawings are provided for the description of the present utility model:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a partial view of components such as the first spring of the present utility model;

[0019] Figure 3 It is an enlarged view at position a in the figure of the present utility model;

[0020] Figure 4 It is a partial view of components such as the first magnet of the present utility model;

[0021] Figure 5 It is a partial view of components such as the second sliding rod of the present utility model.

[0022] The reference signs in the drawings are as follows: 1, intake pipe; 2, circulation pipe; 3, compressed intake device; 31, main body cylinder; 32, limiting device; 321, sliding cylinder; 322, second magnet; 323, first magnet; 33, second spring; 34, second sliding rod; 35, sliding plate; 36, slider; 37, first spring; 38, first sliding rod; 4, filter; 5, air compressor; 6, motor; 7, gas-liquid separator; 8, radiator; 9, first groove; 10, second groove; 11, oil delivery pipe; 12, check valve. Detailed Description of the Preferred Embodiment

[0023] As Figures 1 to 5 shown, a piston compression type associated petroleum gas separation, pressurization and recovery device of the present utility model includes an intake pipe 1, a compressed intake device 3, a motor 6, an air compressor 5 and a gas-liquid separator 7. One end of the intake pipe 1 is connected with a circulation pipe 2, and one end of the circulation pipe 2 is communicated with the compressed intake device 3 for intercepting the associated petroleum gas for accumulating the associated petroleum gas.

[0024] The compressed intake device 3 includes: a main body cylinder 31, a sliding plate 35, a first spring 37, a slider 36, a first sliding rod 38, a second spring 33, a second sliding rod 34 and a limiting device 32. The lower end of the circulation pipe 2 is communicated with the upper part of the main body cylinder 31, so that the associated petroleum gas enters the main body cylinder 31 through the circulation pipe 2. The sliding plate 35 is slidably connected with the inside of the main body cylinder 31, and the sliding plate 35 can slide in the main body cylinder 31.

[0025] On both sides of the skateboard 35, first grooves 9 are provided. The slider 36 is located within the first groove 9 and is slidably connected to the first groove 9, and the slider 36 can slide within the first groove 9. The first spring 37 is located between the slider 36 and the first groove 9, and the first spring 37 forms a supporting force on the slider 36. One end of the first slide bar 38 is connected to the slider 36, and the other end of the first slide bar 38 passes through the first groove 9 and is slidably connected to the first groove 9 to prevent the first spring 37 from shaking. On the inner side wall of the main body cylinder 31, a plurality of second grooves 10 are provided. The slider 36 can extend into the second grooves 10. The plurality of second grooves 10 are grouped in pairs, and there are two groups of second grooves 10 respectively provided on the inner side of the main body cylinder 31.

[0026] The second spring 33 is located between the skateboard 35 and the lower end of the main body cylinder 31, and the second spring 33 forms a supporting force on the skateboard 35. The limiting device 32 is located in the lower part of the main body cylinder 31. One end of the second slide bar 34 is connected to the skateboard 35, and the other end of the second slide bar 34 passes through the main body cylinder 31 and extends into the limiting device 32 to limit the second slide bar 34 through the limiting device 32. One end of the flow pipe 2 is communicated with the side surface of the main body cylinder 31. A filter 4 is connected to one end of the flow pipe 2 to filter impurities in the associated gas. One end of the flow pipe 2 is connected to an air compressor 5 to pressurize the associated gas so that part of the associated gas becomes liquid. The motor 6 is connected to one side of the air compressor 5, and the outlet end of the air compressor 5 is connected to a gas-liquid separator 7 to separate the associated gas from the liquid. The outlet end of the gas-liquid separator 7 is connected to a radiator 8 to cool the associated gas and the liquid. The outlet end of the radiator 8 is connected to an oil delivery pipe 11. Two one-way valves 12 are connected to the flow pipe 2, and the two one-way valves 12 are respectively provided on the upper part of the main body cylinder 31 and the upper part of the oil delivery pipe 11.

[0027] The limiting device 32 includes: a sliding cylinder 321, a first magnetic block 323, and a second magnetic block 322. The sliding cylinder 321 is fixedly connected to the lower part of the main body cylinder 31. There are multiple second magnetic blocks 322 and they are connected to the inner side of the sliding cylinder 321. The lower end of the second slide bar 34 is fixedly connected to the first magnetic block 323. The multiple second magnetic blocks 322 are grouped in pairs, and there are two groups of second magnetic blocks 322 respectively provided on the inner side of the sliding cylinder 321. The adsorption force of the second slider 36 located below the sliding cylinder 321 is less than that of the second slider 36 in the upper part of the sliding cylinder 321.

[0028] Working process of the above solution: The associated gas enters the flow pipe 2 through the intake pipe 1. At this time, the associated gas enters the main cylinder 31 through the flow pipe 2. The associated gas exerts pressure on the slide plate 35 inside the main cylinder 31, and the associated gas continuously enters the main cylinder 31 through the one-way valve 12 without flowing back. When the associated gas accumulates to a certain air pressure inside the main cylinder 31, the slider 36 retracts into the first groove 9. At this time, the slide plate 35 moves downward and the second spring 33 is compressed. The second slide rod 34 moves downward, causing the first magnet 323 to no longer adsorb the second magnet 322 on the upper part of the slide cylinder 321. When the slide plate 35 moves downward, the flow pipe 2 on the side of the main cylinder 31 is opened at this time, and the associated gas enters the flow pipe 2. The slider 36 extends into the second groove 10 at the lower part of the main cylinder 31 to fix the slide plate 35 and prevent the slide plate 35 from moving upward. The second slide rod 34 moves downward to make the first magnet 323 adsorb the second magnet 322 at the lower part of the slide cylinder 321. When the air pressure inside the main cylinder 31 decreases, the second spring 33 drives the slide plate 35 to move upward, blocking the flow pipe 2 on the side of the main cylinder 31 and preventing the associated gas from entering the flow pipe 2. At this time, the slide plate 35 drives the slider 36 to move upward, causing the slider 36 to extend into the second groove 10, and the first magnet 323 is magnetically attracted to the second magnet 322 on the upper part of the slide cylinder 321. When the associated gas enters the filter 4 through the flow pipe 2, the impurities in the associated gas are filtered. At this time, the filtered associated gas enters the air compressor 5, and the motor 6 drives the air compressor 5 to operate. The air compressor 5 pressurizes the associated gas, causing part of the associated gas to turn into liquid. At this time, substances such as gas and liquid enter the gas-liquid separator 7 to separate the gas and liquid. The separated gas and liquid are cooled by the radiator 8 and then collected through the oil delivery pipe 11.

[0029] Beneficial effects of the above solution: Through the compression intake device 3, when there is a certain amount of associated gas, the associated gas will enter the flow pipe 2 and the rest of the electrical components will perform separation operations on the associated gas, avoiding waste of resources caused by long-term operation of electrical components; by the associated gas exerting pressure on the slide plate 35, when the air pressure is large enough, the slider 36 is forced to retract from the second groove 10 into the first groove 9. At this time, the slide plate 35 slides and no longer blocks the associated gas, allowing the associated gas to flow out from the flow pipe 2 on the side of the main cylinder 31; through the limiting device 32, the slide plate 35 is clamped more tightly, so that the first magnet 323 and the second magnet 322 will no longer adsorb until the air pressure is relatively large.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A piston compression type associated petroleum gas separation, pressurization and recovery device, characterized in that: It includes an intake pipe (1), a compressed air intake device (3), a motor (6), an air compressor (5), and a gas-liquid separator (7). One end of the intake pipe (1) is connected to a circulation pipe (2). One end of the circulation pipe (2) is communicated with the compressed air intake device (3), and one end of the circulation pipe (2) is communicated with the side of the compressed air intake device (3). The compressed air intake device (3) collects the gas to make the gas reach a certain air pressure and then discharges it through the circulation pipe (2). One end of the circulation pipe (2) is connected to the air compressor (5). The motor (6) is connected to one side of the air compressor (5). The outlet end of the air compressor (5) is connected to the gas-liquid separator (7). The outlet end of the gas-liquid separator (7) is connected to a radiator (8). The outlet end of the radiator (8) is connected to an oil delivery pipe (11).

2. The piston compression type associated petroleum gas separation, pressurization and recovery device according to claim 1, characterized in that: The compressed air intake device (3) includes: a main body cylinder (31), a slide plate (35), a first spring (37), a slider (36), a first slide rod (38), a second spring (33), a second slide rod (34), and a limiting device (32). The lower end of the circulation pipe (2) is communicated with the upper part of the main body cylinder (31). The slide plate (35) is slidably connected to the inside of the main body cylinder (31). First grooves (9) are formed on both sides of the slide plate (35). The slider (36) is located in the first groove (9) and is slidably connected to the first groove (9). The first spring (37) is located between the slider (36) and the first groove (9). One end of the first slide rod (38) is connected to the slider (36), and the other end of the first slide rod (38) passes through the first groove (9) and is slidably connected to the first groove (9). A plurality of second grooves (10) are formed on the inner side wall of the main body cylinder (31). The second spring (33) is located between the slide plate (35) and the lower end of the main body cylinder (31). The limiting device (32) is located in the lower part of the main body cylinder (31). One end of the second slide rod (34) is connected to the slide plate (35), and the other end of the second slide rod (34) passes through the main body cylinder (31) and extends into the limiting device (32). One end of the circulation pipe (2) is communicated with the side of the main body cylinder (31).

3. A piston compression type associated petroleum gas separation, pressurization and recovery device according to claim 2, characterized in that: The limiting device (32) includes: a slide cylinder (321), a first magnetic block (323), and a second magnetic block (322). The slide cylinder (321) is fixedly connected to the lower part of the main body cylinder (31). There are multiple second magnetic blocks (322) which are connected to the inner side of the slide cylinder (321). The lower end of the second slide rod (34) is fixedly connected to the first magnetic block (323).

4. A piston compression type associated petroleum gas separation, pressurization and recovery device according to claim 2, characterized in that: Multiple of the second grooves (10) are grouped in pairs, and there are two groups of the second grooves (10) respectively arranged on the inner side of the main body cylinder (31).

5. The piston compression type associated petroleum gas separation, pressurization and recovery device according to claim 3, wherein: Multiple of the second magnetic blocks (322) are grouped in pairs, and there are two groups of the second magnetic blocks (322) respectively arranged on the inner side of the slide cylinder (321).

6. A piston compression type associated petroleum gas separation, pressurization and recovery device according to claim 1, characterized in that: One end of the circulation pipe (2) is connected to a filter (4).

7. A piston compression type associated petroleum gas separation, pressurization and recovery device according to claim 1, characterized in that: Two one-way valves (12) are connected to the circulation pipe (2).

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