An oil and gas recovery condensing device

Abstract

The utility model discloses an oil gas recovery condensing device, including the condenser, the input of condenser fixed communication has the communicating pipe, the upper portion of communicating pipe is equipped with the filter cover, both ends of filter cover all are provided with the thread seal cover, the upper portion of filter cover is equipped with the air inlet pipe, one end of air inlet pipe and the one end of communicating pipe all fixed communication have the limit disc, the inner ring of filter cover is fixed mounting respectively has cellulose membrane, glass fiber layer and activated carbon filter cotton. This oil gas recovery condensing device, through cellulose membrane, glass fiber layer and activated carbon filter cotton in the filter cover inside, can form progressive oil gas filter barrier, can intercept big granular impurities first, then filter tiny dust and aerosol, finally adsorb organic pollutants, solve the problem that oil gas contains solid impurities, and dirt accumulation influences condensing efficiency, prolong the cleaning cycle and the service life of condenser, make subsequent condenser convenient for oil gas recovery condensing treatment.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas recovery, and in particular to an oil and gas recovery condensation device. Background Technology

[0002] Oil and gas recovery refers to the technical process of collecting, treating, and reusing volatile oil and gas such as gasoline and diesel. Its core is to reduce oil and gas emissions through physical or chemical methods, which not only avoids resource waste but also reduces the pollution of the environment by volatile organic compounds. Common technologies include condensation, adsorption, and absorption methods, which are widely used in gas stations, oil depots, refineries, and other scenarios. It is an important measure for environmental protection and energy conservation.

[0003] Chinese Patent CN219272192U discloses an oil and gas recovery condensation device, including a tank body with caps at both ends. A sealing plate is located near one end of each cap, and several condensation pipes are horizontally arranged between the two sealing plates. A scraping device is installed inside the tank body, comprising a drive motor, a sealing sleeve, a lead screw, a guide rail, a movable plate, and a scraping sleeve. The guide rail is horizontally arranged on the inner walls of both sides of the tank body. The lead screw is located at the center of the tank body, and a movable plate is mounted on the lead screw. The center of the movable plate is bolted to the lead screw. The movable plate has two sides... The device is slidably mounted on a guide rail, with a scraper sleeve installed on the movable plate. The inner wall of the scraper sleeve has a scraper ring, and the inner side of the scraper ring is fitted to the surface of the condenser tube. During the displacement of the movable plate, the scraper ring scrapes off the liquid accumulated on the condenser tube, effectively ensuring the condensation effect of the condenser tube. However, the above patent makes it difficult to filter the oil and gas before condensation. The oil and gas contain solid impurities, which will accumulate and cause dirt on the inner wall of the condenser, affecting the subsequent condensation effect of the condenser. Therefore, we propose an oil and gas recovery condensation device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an oil and gas recovery and condensation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An oil and gas recovery condensation device includes a condenser, an inlet pipe fixedly connected to the inlet end of the condenser, a filter cover above the inlet pipe, threaded sealing covers at both ends of the filter cover, an inlet pipe above the filter cover, a limit plate fixedly connected to one end of the inlet pipe and one end of the inlet pipe, a cellulose membrane, a glass fiber layer and activated carbon filter cotton fixedly installed on the inner ring of the filter cover, a drain pipe fixedly connected to the bottom end of the condenser, and an oil storage tank fixedly connected to the bottom end of the drain pipe.

[0007] In a further embodiment, a liquid outlet pipe is fixedly connected to one side of the oil storage tank, a liquid outlet solenoid valve is fixedly connected to the outer surface of the liquid outlet pipe, and an ultrasonic level gauge is fixedly installed on the inner top wall of the oil storage tank.

[0008] In a further embodiment, the outer surface of the filter cover has two threaded connecting seats, and the inner walls of the two threaded connecting seats are threadedly connected with threaded sealing covers, and the inner walls of the two threaded connecting seats are provided with elastic sealing rings.

[0009] In a further embodiment, an elastic sealing gasket is provided on one side of each of the two limiting discs, and the inner walls of the two threaded sealing covers are respectively in contact with the opposite sides of the two elastic sealing gaskets.

[0010] In a further embodiment, the top end of the air intake pipe is fixedly connected to an air intake flange, and the bottom surface of the oil storage tank is fixedly connected to two support bases.

[0011] In a further embodiment, two reinforcing support plates are fixedly connected to the outer surface of the oil storage tank. The two reinforcing support plates are fixedly connected to the outer surface of the condenser on their adjacent sides. A control host is fixedly installed on the outer surface of one of the reinforcing support plates. The control host is electrically connected to the liquid outlet solenoid valve and the ultrasonic level gauge respectively through wires.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a cellulose membrane, glass fiber layer, and activated carbon filter cotton inside the filter cover to form a progressive oil and gas filtration barrier. It first intercepts large particulate impurities, then filters fine dust and aerosols, and finally adsorbs organic pollutants. This solves the problem of solid impurities in oil and gas affecting condensation efficiency due to dirt accumulation, extends the cleaning cycle and service life of the condenser, facilitates subsequent oil and gas recovery and condensation treatment in the condenser, and improves the condensation effect of the condenser. Furthermore, the threaded fit between the threaded sealing cover and the threaded connection seat, combined with the elastic sealing ring and elastic sealing gasket, facilitates the disassembly, replacement, and sealing of the filter cover, and prevents leakage of unfiltered oil and gas. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of an oil and gas recovery condensation unit viewed from the front;

[0015] Figure 2 A cross-sectional view of the filter cover of the oil and gas recovery condenser unit from the front.

[0016] Figure 3 A cross-sectional view of the oil storage tank of the oil and gas recovery condensation unit from the front.

[0017] Figure 4 For oil and gas recovery condensation unit Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Condenser; 2. Connecting pipe; 3. Filter cover; 4. Inlet pipe; 5. Threaded sealing cover; 6. Limiting plate; 7. Threaded connector; 8. Cellulose membrane; 9. Glass fiber layer; 10. Activated carbon filter cotton; 11. Elastic sealing ring; 12. Reinforcing support plate; 13. Control host; 14. Oil storage tank; 15. Support base; 16. Ultrasonic level gauge; 17. Drain pipe; 18. Outlet pipe; 19. Outlet solenoid valve; 20. Inlet flange; 21. Elastic sealing gasket. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In terms of circuit structure, the drive and control circuits of this utility model are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For the power supply components, common general power supply equipment on the market can be used, as long as the voltage and current requirements of the equipment are met. No special design is required. In addition, the electrical components in this application are all common electrical equipment in the prior art. This application will not elaborate on their models or internal structures.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4In this utility model, an oil and gas recovery condensation device includes a condenser 1, which is a shell-and-tube structure, mainly composed of a shell, tube bundle, tube sheet, etc. During operation, hot oil and gas flow inside the tubes, and a low-temperature refrigerant such as cold water is introduced outside the tubes. Heat exchange occurs through the tube walls, and the heat of the oil and gas is carried away by the refrigerant, causing the temperature to drop. The gaseous oil and gas condenses into a liquid state, which is the key condensation step for oil and gas recovery. The input end of the condenser 1 is fixedly connected to a connecting pipe 2. A filter cover 3 is provided above the connecting pipe 2. Both ends of the filter cover 3 are provided with threaded sealing covers 5. An air inlet pipe 4 is provided above the filter cover 3. One end of the air inlet pipe 4 and one end of the connecting pipe 2 are fixedly connected to a limiting plate 6. A cellulose membrane 8, a glass fiber layer 9, and activated carbon filter cotton 10 are fixedly installed on the inner ring of the filter cover 3. The cellulose membrane 8 is made of cellulose derivatives and has a large pore size. Utilizing the sieving principle, it intercepts larger solid particles such as metal fragments and dust clumps in the oil and gas like a sieve. The glass fiber layer 9, with its extremely fine glass fibers interwoven to form a complex porous structure, filters out fine dust and aerosols in the oil and gas through inertial collision and interception. It has a strong ability to capture tiny particles. The activated carbon filter cotton 10 has well-developed internal pores, adsorbing organic pollutants and odor molecules in the oil and gas onto its surface, thus achieving purification. The bottom of the condenser 1 is fixedly connected to a drain pipe 17, and the bottom of the drain pipe 17 is fixedly connected to an oil storage tank 14. The cellulose membrane 8, glass fiber layer 9, and activated carbon filter cotton 10 in the filter cover 3 play their roles in sequence, respectively intercepting large particulate impurities, filtering fine dust and aerosols, and adsorbing organic pollutants, thus achieving three-stage purification of the oil and gas. This provides a clean gas source for subsequent condensation treatment. The purified oil and gas enters the condenser 1 through the connecting pipe 2. In the condenser 1, the condensable components are liquefied through low temperature. The liquefied liquid flows into the oil storage tank 14 through the drain pipe 17 for temporary storage.

[0023] In a further embodiment, an outlet pipe 18 is fixedly connected to one side of the oil storage tank 14, and an outlet solenoid valve 19 is fixedly connected to the outer surface of the outlet pipe 18. An ultrasonic level gauge 16 is fixedly installed on the inner top wall of the oil storage tank 14. Two threaded connecting seats 7 are on the outer surface of the filter cover 3, and threaded sealing covers 5 are threadedly connected to the inner walls of the two threaded connecting seats 7. Elastic sealing rings 11 are provided on the inner walls of the two threaded connecting seats 7. Elastic sealing gaskets 21 are provided on one side of the two limiting discs 6. The inner walls of the two threaded sealing covers 5 are in contact with the opposite sides of the two elastic sealing gaskets 21. The threaded sealing covers 5 and the threaded connecting seats 7 on the surface of the filter cover 3 are threaded together with the elastic sealing rings 11 and the elastic sealing gaskets 21 on the limiting discs 6 to form a sealing structure to prevent oil and gas leakage. The recovered liquid is discharged through the outlet pipe 18 and the outlet solenoid valve 19 on the surface. The ultrasonic level gauge 16 monitors the liquid level in real time and can provide data support for the discharge control.

[0024] In a further embodiment, an air inlet flange 20 is fixedly connected to the top of the air inlet pipe 4, two support bases 15 are fixedly connected to the bottom surface of the oil storage tank 14, and two reinforcing support plates 12 are fixedly connected to the outer surface of the oil storage tank 14. The side of the two reinforcing support plates 12 that are close to each other are fixedly connected to the outer surface of the condenser 1. A control host 13 is fixedly installed on the outer surface of one of the reinforcing support plates 12. The control host 13 is electrically connected to the liquid outlet solenoid valve 19 and the ultrasonic level gauge 16 through wires. The air inlet pipe 4 is connected to the oil and gas to be recovered through the air inlet flange 20 at the top. The support bases 15 ensure that the oil storage tank 14 is placed stably. The connection between the two reinforcing support plates 12 and the surface of the condenser 1 enhances the structural stability of the connection between the condenser 1 and the oil storage tank 14. The core of the control host 13 is a microprocessor, which is connected to the ultrasonic level gauge 16 and the liquid outlet solenoid valve 19. The level gauge transmits the liquid level signal of the oil storage tank 14 in real time. The microprocessor compares the preset value and issues an instruction when the limit is exceeded to control the opening and closing of the liquid outlet solenoid valve 19 to realize automatic control of liquid discharge.

[0025] The working principle of this utility model is as follows: First, the oil and gas to be recovered enter the device through the air inlet flange 20 at the top of the air inlet pipe 4, and are transported to the filter cover 3 through the air inlet pipe 4. At this time, the oil and gas pass through the cellulose membrane 8 in the filter cover 3 in sequence to intercept larger solid particles and impurities in the oil and gas. The glass fiber layer 9 filters fine dust and aerosols, and the activated carbon filter cotton 10 adsorbs organic pollutants and odors in the oil and gas, realizing three-stage purification. The purified oil and gas enter the condenser 1 through the connecting pipe 2. In the condenser 1, the condensable components in the oil and gas can be liquefied into liquid through the low temperature condensation effect. The liquefied liquid flows into the oil storage tank 14 for temporary storage through the drain pipe 17.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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. An oil and gas recovery condensing apparatus, characterized by: The condenser (1) is fixedly connected to a connecting pipe (2) at its input end. A filter cover (3) is provided above the connecting pipe (2). Threaded sealing covers (5) are provided at both ends of the filter cover (3). An air inlet pipe (4) is provided above the filter cover (3). A limit plate (6) is fixedly connected to one end of the air inlet pipe (4) and one end of the connecting pipe (2). A cellulose membrane (8), a glass fiber layer (9), and activated carbon filter cotton (10) are fixedly installed on the inner ring of the filter cover (3). A drain pipe (17) is fixedly connected to the bottom end of the condenser (1). An oil storage tank (14) is fixedly connected to the bottom end of the drain pipe (17).

2. An oil and gas recovery condensing unit according to claim 1, characterized in that: One side of the oil storage tank (14) is fixedly connected to a liquid outlet pipe (18), and the outer surface of the liquid outlet pipe (18) is fixedly connected to a liquid outlet solenoid valve (19). An ultrasonic level gauge (16) is fixedly installed on the inner top wall of the oil storage tank (14).

3. The oil and gas recovery and condensation device according to claim 1, characterized in that: The filter cover (3) has two threaded connecting seats (7) on its outer surface. The inner walls of the two threaded connecting seats (7) are threaded with threaded sealing covers (5), and the inner walls of the two threaded connecting seats (7) are provided with elastic sealing rings (11).

4. An oil and gas recovery condensing unit according to claim 3, characterized in that: Each of the two limiting discs (6) is provided with an elastic sealing gasket (21) on one side, and the inner walls of the two threaded sealing covers (5) are in contact with the opposite sides of the two elastic sealing gaskets (21).

5. An oil and gas recovery condensing unit as defined in claim 1, wherein: The top end of the air inlet pipe (4) is fixedly connected to an air inlet flange (20), and the bottom surface of the oil storage tank (14) is fixedly connected to two support bases (15).

6. The oil and gas recovery condensation device according to claim 1, characterized in that: Two reinforcing support plates (12) are fixedly connected to the outer surface of the oil storage tank (14). The two reinforcing support plates (12) are fixedly connected to the outer surface of the condenser (1) on their side closest to each other. A control host (13) is fixedly installed on the outer surface of one of the reinforcing support plates (12). The control host (13) is electrically connected to the liquid outlet solenoid valve (19) and the ultrasonic level gauge (16) respectively through wires.

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