An oil and gas recovery apparatus

Abstract

The utility model provides a kind of oil gas recovery device, it is related to oil gas recovery processing technical field, including oil gas booster, the oil gas booster discharge port one end fixed communication has three-way valve, the utility model can be wrapped to conveying hose by being provided with No. One explosion-proof cylinder and No. Two explosion-proof cylinders, to improve the compression effect of conveying hose in turn, by the pressure stabilizing shell set inside the positioning plate frame, No. One explosion-proof cylinder and No. Two explosion-proof cylinders can be positioned by cooperating positioning plate frame, and the strength of No. One explosion-proof cylinder and No. Two explosion-proof cylinders is improved, the pressure change generated by the expansion of conveying hose inside pressure stabilizing chamber is used to remind operator, the regulation and control of oil gas pressure transmission, cooperating with the pressure sensor fixedly installed inside pressure measuring seat, the pressure inside pressure stabilizing chamber can be detected, to facilitate timely understanding the oil gas pressure change inside conveying hose in turn.

Description

Technical Field

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

[0002] In the oil storage and transportation tank areas of energy and chemical enterprises, the volatility of oil and gas is low. When these gases evaporate, they cause the internal pressure of the tanks to rise. To maintain the pressure within the normal range, it is often necessary to release some of the gas into the atmosphere using the tank's breather valve. However, this deteriorates the air quality around the tank area, leading to non-compliance with environmental standards. To solve this environmental problem, the common approach is to add an oil and gas recovery incinerator. However, because the storage tanks are nitrogen-sealed, the recovered oil and gas contains a large amount of nitrogen. To ensure that the incinerator's emissions meet environmental standards, the recovered oil and gas from the storage and transportation tank area is transported to a buffer tank via a booster compressor, and then introduced into a nitrogen drying and regeneration unit and an olefin separation unit to achieve effective separation of nitrogen and oil and gas before combustion and discharge.

[0003] In existing technologies, during the process of transporting oil and gas to the buffer tank via a booster compressor, the buffer tank needs to buffer and stabilize the oil and gas pressure, which generates pressure inside the buffer tank. This leads to an increase in the gas pressure inside the oil and gas transport pipe. During long-term operation of the equipment, the start-up and shutdown of the oil and gas transport will cause the pressure resistance of the oil and gas transport pipe between the booster compressor and the buffer tank to weaken, resulting in pressure damage. Moreover, the damage to this part of the pipe is difficult to detect. Therefore, we propose an oil and gas recovery device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oil and gas recovery device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an oil and gas recovery device, including an oil and gas booster, a three-way valve fixedly connected to one end of the oil and gas booster's discharge port, an incinerator and a connecting mechanism respectively provided at the discharge end of the three-way valve, a buffer tank fixedly connected to one end of the connecting mechanism, an oil and gas processing mechanism connected to the discharge port of the buffer tank through a valve pipe, and a hydrocarbon condensate separator connected to one end of the oil and gas processing mechanism through a valve pipe; the connecting mechanism includes a conveying hose fixedly connected to one end of the discharge branch of the three-way valve, a first explosion-proof cylinder and a second explosion-proof cylinder fitted onto the outer wall of the conveying hose, positioning plates and frames rotatably installed on the outer walls of the first and second explosion-proof cylinders, and positioning screws are installed through the interior of the positioning plates and frames.

[0006] Preferably, the communication mechanism further includes a pressure stabilizing shell sleeve disposed inside the positioning plate frame, and the two ends of the pressure stabilizing shell sleeve are fixedly connected to the No. 1 explosion-proof cylinder and the No. 2 explosion-proof cylinder, respectively.

[0007] Preferably, a vacuum pressure-stabilizing cavity is formed between the pressure-stabilizing housing and the delivery hose, and the pressure-stabilizing housing is generally conical in shape.

[0008] Preferably, a pressure measuring base is fixedly installed on the outer wall of the pressure stabilizing shell, and a pressure sensor is fixedly installed inside the pressure measuring base, with the pressure sensor detection head located inside the pressure stabilizing chamber.

[0009] Preferably, the outer wall dimensions of the delivery hose are the same as the inner wall dimensions of the No. 1 and No. 2 explosion-proof cylinders.

[0010] Preferably, the outer walls of both the No. 1 and No. 2 explosion-proof cylinders are fixedly connected with reinforcing rings.

[0011] Preferably, the oil and gas treatment mechanism consists of a nitrogen regeneration drying and circulating cooling device to dry and cool the oil and gas.

[0012] Preferably, the nitrogen discharge port of the hydrocarbon condensate separator is connected to a flare for burning and discharging the discharged nitrogen.

[0013] Beneficial effects:

[0014] 1. This utility model uses explosion-proof cylinders No. 1 and No. 2 to wrap the delivery hose, thereby improving its pressure resistance. A pressure-stabilizing sleeve inside the positioning frame helps to limit the movement of the explosion-proof cylinders No. 1 and No. 2, increasing their strength. A vacuum pressure-stabilizing chamber is formed between the pressure-stabilizing sleeve and the delivery hose. This vacuum chamber keeps part of the outer wall of the delivery hose at the designed pressure. When excessive pressure occurs, the pressure change caused by the expansion of the delivery hose within the pressure-stabilizing chamber alerts the operator to adjust the oil and gas pressure, preventing damage to the incinerator or buffer tank due to excessive oil and gas pressure. Furthermore, a pressure sensor fixedly installed inside the pressure measuring base can detect the pressure inside the pressure-stabilizing chamber, facilitating timely monitoring of oil and gas pressure changes within the delivery hose.

[0015] 2. This utility model uses a conveying hose with the same dimensions as the inner walls of explosion-proof cylinders No. 1 and No. 2, which can tightly fit explosion-proof cylinders No. 1 and No. 2, thereby preventing the conveying hose from expanding under pressure. The reinforcing rings that are fixedly connected to the outer walls of explosion-proof cylinders No. 1 and No. 2 enhance the overall strength of explosion-proof cylinders No. 1 and No. 2. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall process flow of this utility model;

[0017] Figure 2This is a three-dimensional structural diagram of the connecting mechanism of this utility model;

[0018] Figure 3 This is a cross-sectional view of the connecting mechanism.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the voltage stabilizing housing.

[0020] Legend:

[0021] 1. Oil and gas booster; 2. Three-way valve; 3. Incinerator; 4. Connecting mechanism; 5. Buffer tank; 6. Oil and gas processing mechanism; 7. Hydrocarbon condensate separator; 8. Delivery hose; 9. No. 1 explosion-proof cylinder; 10. No. 2 explosion-proof cylinder; 11. Reinforcing ring; 12. Positioning plate frame; 13. Positioning screw; 14. Pressure stabilizing shell; 15. Pressure measuring seat; 16. Pressure stabilizing chamber; 17. Pressure sensor. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0024] Reference Figures 1-4 An oil and gas recovery device includes an oil and gas booster 1. One end of the oil and gas booster 1 is fixedly connected to a three-way valve 2. The discharge end of the three-way valve 2 is respectively provided with an incinerator 3 and a connecting mechanism 4. One end of the connecting mechanism 4 is fixedly connected to a buffer tank 5. The discharge port of the buffer tank 5 is connected to an oil and gas processing mechanism 6 through a valve pipe. One end of the oil and gas processing mechanism 6 is connected to a hydrocarbon condensate separator 7 through a valve pipe. The connecting mechanism 4 includes a conveying hose 8 fixedly connected to one end of the discharge branch of the three-way valve 2. A first explosion-proof cylinder 9 and a second explosion-proof cylinder 10 are fitted on the outer wall of the conveying hose 8. A positioning plate frame 12 is rotatably installed on the outer wall of the first explosion-proof cylinder 9 and the second explosion-proof cylinder 10. A positioning screw 13 is installed through the inside of the positioning plate frame 12.

[0025] After the oil and gas booster 1 pressurizes the oil and gas, it is regulated by the three-way valve 2 and then discharged into the buffer tank 5 through the connecting mechanism 4. The buffer tank 5 buffers the oil and gas, allowing it to be delivered to the oil and gas processing mechanism 6 at a stable pressure. The oil and gas processing mechanism 6 dries and cools the oil and gas, and then delivers it to the hydrocarbon condensate separator 7. The hydrocarbon condensate separator 7 separates olefins from the oil and gas. The separated hydrocarbon condensate can be discharged into the recovery device for reuse, and the separated nitrogen is discharged to the flare for combustion. The high-pressure oil and gas can be transported between the incinerator 3 and the buffer tank 5 through the connecting mechanism 4. The first explosion-proof cylinder 9 and the second explosion-proof cylinder 10 can be used to wrap the delivery hose 8, thereby improving the pressure resistance of the delivery hose 8.

[0026] like Figures 2-4 As shown, the connecting mechanism 4 also includes a pressure stabilizing sleeve 14 disposed inside the positioning plate frame 12, and the two ends of the pressure stabilizing sleeve 14 are fixedly connected to the first explosion-proof cylinder 9 and the second explosion-proof cylinder 10 respectively. Through the pressure stabilizing sleeve 14 disposed inside the positioning plate frame 12, the first explosion-proof cylinder 9 and the second explosion-proof cylinder 10 can be limited in conjunction with the positioning plate frame 12, and the strength of the first explosion-proof cylinder 9 and the second explosion-proof cylinder 10 is improved.

[0027] like Figures 2-4 As shown, a vacuum pressure stabilizing chamber 16 is formed between the pressure stabilizing sleeve 14 and the delivery hose 8. The pressure stabilizing sleeve 14 is generally conical in shape. The vacuum pressure stabilizing chamber 16 formed between the pressure stabilizing sleeve 14 and the delivery hose 8 can keep part of the outer wall of the delivery hose 8 at the designed pressure state. This allows the pressure change generated by the expansion of the delivery hose 8 inside the pressure stabilizing chamber 16 when the pressure is too high to remind the operator to control the oil and gas pressure delivery, thereby avoiding the situation where the oil and gas pressure is too high and the incinerator 3 or buffer tank 5 is damaged.

[0028] like Figures 2-4 As shown, a pressure measuring seat 15 is fixedly installed on the outer wall of the pressure stabilizing shell 14, and a pressure sensor 17 is fixedly installed inside the pressure measuring seat 15. The detection head of the pressure sensor 17 is located inside the pressure stabilizing chamber 16. Through the pressure sensor 17 fixedly installed inside the pressure measuring seat 15, the pressure inside the pressure stabilizing chamber 16 can be detected, thereby facilitating timely understanding of the changes in oil and gas pressure inside the delivery hose 8.

[0029] like Figures 2-4As shown, the outer wall dimensions of the conveying hose 8 are the same as the inner wall dimensions of the No. 1 explosion-proof cylinder 9 and the No. 2 explosion-proof cylinder 10. The outer walls of the No. 1 explosion-proof cylinder 9 and the No. 2 explosion-proof cylinder 10 are all fixedly connected with reinforcing rings 11. The conveying hose 8, which has the same inner wall dimensions as the No. 1 explosion-proof cylinder 9 and the No. 2 explosion-proof cylinder 10, can fit tightly against the No. 1 explosion-proof cylinder 9 and the No. 2 explosion-proof cylinder 10, thereby preventing the conveying hose 8 from expanding under pressure. The reinforcing rings 11 fixedly connected to the outer walls of the No. 1 explosion-proof cylinder 9 and the No. 2 explosion-proof cylinder 10 enhance the overall strength of the No. 1 explosion-proof cylinder 9 and the No. 2 explosion-proof cylinder 10.

[0030] like Figure 1 As shown, the oil and gas processing unit 6 consists of a nitrogen regeneration drying and circulating cooling device, which dries and cools the oil and gas to facilitate subsequent oil and gas separation.

[0031] like Figure 1 As shown, the nitrogen discharge port of the hydrocarbon condensate separator 7 is connected to a flare for burning and discharging the discharged nitrogen.

[0032] The working principle of this utility model is as follows: The nitrogen-containing oil and gas output pipe of the storage and transportation tank area is connected to the oil and gas booster 1. After being pressurized by the oil and gas booster 1, the oil and gas are transported to the interior of the buffer tank 5 through the three-way valve 2 and the connecting mechanism 4. Since the buffer tank 5 contains high-pressure gas for buffering, a certain pressure will be generated inside the delivery hose 8 when the oil and gas are transported to the buffer tank 5. The No. 1 explosion-proof cylinder 9 and the No. 2 explosion-proof cylinder 10 wrapped around the outer wall of the delivery hose 8 can reinforce the delivery hose 8 and improve its pressure resistance. At the same time, the pressure stabilizing shell 14 set inside the positioning plate frame 12 can reserve a pressure stabilizing chamber 16 for testing the pressure resistance and leakage of the delivery hose 8. The pressure stabilizing chamber 16 is high-pressure, which can apply pressure to the delivery hose 8, keeping the outer wall of the delivery hose 8 under high pressure, thereby providing protection for the delivery hose 8 and achieving the explosion-proof function of the delivery hose 8. When the delivery hose 8 is damaged or the pressure is excessive, causing the delivery hose to leak, the pressure will be reduced. When pipe 8 expands, the pressure inside the pressure stabilizing chamber 16 changes. The pressure sensor 17, which is fixedly installed inside the pressure measuring seat 15 on the outer wall of the pressure stabilizing shell 14, can detect the pressure change inside the pressure stabilizing chamber 16, thereby understanding the status of the delivery hose 8, so as to maintain and replace the delivery hose 8 in a timely manner and ensure the safe operation of the entire equipment. The oil and gas, which has been buffered by the buffer tank 5, is delivered to the oil and gas treatment mechanism 6 at a stable pressure. The oil and gas is dried and cooled by the oil and gas treatment mechanism 6. The dried and cooled oil and gas is delivered to the hydrocarbon condensate separator 7. The hydrocarbon condensate separator 7 is used to separate olefins from the oil and gas. The separated hydrocarbon condensate can be discharged into the recovery device for reuse. The separated nitrogen is discharged to the flare for combustion. When the above-mentioned oil and gas recovery and treatment equipment malfunctions and needs to be shut down for maintenance, the oil and gas delivery route is changed by the three-way valve 2, and the oil and gas is directly delivered to the incinerator 3 for combustion treatment to meet the emergency oil and gas treatment needs.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An oil and gas recovery device, characterized in that: The system includes an oil and gas booster (1), one end of which is fixedly connected to a three-way valve (2). The three-way valve (2) is equipped with an incinerator (3) and a connecting mechanism (4) at its discharge end. One end of the connecting mechanism (4) is fixedly connected to a buffer tank (5). The discharge port of the buffer tank (5) is connected to an oil and gas processing mechanism (6) through a valve pipe. One end of the oil and gas processing mechanism (6) is connected to a hydrocarbon condensate separator (7) through a valve pipe. The connecting mechanism (4) includes a conveying hose (8) fixedly connected to one end of the discharge branch of the three-way valve (2). The outer wall of the conveying hose (8) is fitted with a first explosion-proof cylinder (9) and a second explosion-proof cylinder (10). The outer walls of the first explosion-proof cylinder (9) and the second explosion-proof cylinder (10) are rotatably equipped with positioning plates (12). The positioning plates (12) are internally fitted with positioning screws (13).

2. The oil and gas recovery device according to claim 1, characterized in that: The communication mechanism (4) also includes a pressure stabilizing shell (14) disposed inside the positioning plate frame (12), and the two ends of the pressure stabilizing shell (14) are fixedly connected to the first explosion-proof cylinder (9) and the second explosion-proof cylinder (10) respectively.

3. The oil and gas recovery device according to claim 2, characterized in that: A vacuum pressure stabilizing chamber (16) is formed between the pressure stabilizing housing (14) and the delivery hose (8), and the pressure stabilizing housing (14) is generally conical in shape.

4. The oil and gas recovery device according to claim 3, characterized in that: A pressure measuring seat (15) is fixedly installed on the outer wall of the pressure stabilizing shell (14), and a pressure sensor (17) is fixedly installed inside the pressure measuring seat (15). The detection head of the pressure sensor (17) is located inside the pressure stabilizing cavity (16).

5. The oil and gas recovery device according to claim 1, characterized in that: The outer wall dimensions of the conveying hose (8) are the same as the inner wall dimensions of the No. 1 explosion-proof cylinder (9) and the No. 2 explosion-proof cylinder (10).

6. The oil and gas recovery device according to claim 1, characterized in that: The outer walls of both the No. 1 explosion-proof cylinder (9) and the No. 2 explosion-proof cylinder (10) are fixedly connected with reinforcing rings (11).

7. The oil and gas recovery device according to claim 1, characterized in that: The oil and gas processing unit (6) consists of a nitrogen regeneration drying and circulating cooling device, which dries and cools the oil and gas.

8. The oil and gas recovery device according to claim 1, characterized in that: The nitrogen discharge port of the hydrocarbon condensate separator (7) is connected to a torch for burning and discharging the discharged nitrogen.

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