Oil-gas-water interface separation device

Abstract

The utility model discloses an oil-gas-water interface separation device, which belongs to the technical field of petroleum stock solution processing and separating devices, comprises a main shell, and is characterized in that an inner cavity of the main shell is divided into a liquid inlet chamber, a mixing chamber, a settling chamber and an oil-water separation chamber through corrugated plate packing, a metal baffle plate and a baffle plate which are sequentially arranged from left to right; the oil-water separation chamber is divided into a front oil chamber and a rear water chamber through a transversely arranged oil-water separation plate; a first blow-off pipe and a second blow-off pipe are sequentially arranged at the bottom of the main shell in the position of the settling chamber from left to right; a wire mesh demister is arranged on the right side of the top of the inner cavity of the main shell and located at a bottom outlet position of the air outlet. According to the oil-water-gas interface separation device, through application of the first blow-off pipe and the second blow-off pipe in the petroleum processing separation process, the problem that an existing three-phase separation device is difficult to discharge impurities floating on the surface of an oil-gas interface and the surface of an oil-water interface in the separation process is well solved, meanwhile, the separation precision is improved, and the separation effect is optimized.

Description

Technical Field

[0001] This utility model relates to the technical field of petroleum raw material processing and separation devices, specifically an oil-gas-water interface separation device. Background Technology

[0002] Crude oil extracted from oil wells is typically a mixture of oil, gas, and water, which needs to be separated. However, impurities often float on the surfaces of the separated oil-gas interface and oil-water interface, resulting in poor separation efficiency.

[0003] Existing three-phase oil-gas-water separation devices typically have the following structure: a horizontal cylindrical body divided into a sedimentation chamber, a water chamber, and an oil chamber by overflow baffles; the bottom of each chamber has a drain outlet, a water outlet, and an oil outlet, respectively; one end of the body has a raw liquid inlet and a separator, and the other end has a gas outlet; the body also has liquid level, water level, and oil level observation ports. However, existing three-phase separation devices struggle to remove impurities floating on the surfaces of the oil-gas interface and the oil-water interface during the separation process, thus affecting the separation efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention aims to provide an oil-water interface separation device to solve the problem that existing three-phase separation devices are unable to remove impurities floating on the surface of the oil-gas interface and the surface of the oil-water interface during the separation process.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides an oil-water interface separation device, including a main shell. The inner cavity of the main shell is divided into an inlet chamber, a mixing chamber, a settling chamber, and an oil-water separation chamber from left to right by a corrugated packing, a metal baffle, and a baffle. The oil-water separation chamber is further divided into an oil chamber and a water chamber by a horizontally arranged oil-water partition. At the bottom of the main shell, located in the settling chamber, a first drain pipe and a second drain pipe are arranged from left to right. The first drain pipe and the second drain pipe serve to discharge impurities floating on the surface of the oil, gas, and water interface during the separation process. The first drain pipe is used to discharge impurities floating on the surface of the oil-water interface, and the second drain pipe is used to discharge impurities floating on the surface of the oil-gas interface. A wire mesh demister is installed on the top right side of the inner cavity of the main shell at the bottom outlet of the gas outlet.

[0007] Preferably, the main housing has a liquid inlet on the top left side that communicates with the liquid inlet chamber; the main housing has several drain outlets at the bottom; a liquid level gauge is provided on the main housing on the upper and lower sides of the mixing chamber, which is a high level gauge on the upper side and a low level gauge on the lower side; a set of liquid level measuring instruments is provided on the main housing at the oil chamber and water chamber positions, which is a high level gauge and a low level gauge.

[0008] Preferably, the main housing has an oil outlet at the bottom of the oil chamber; the main housing has a water outlet at the bottom of the water chamber; and the bottom of the baffle is connected to the water chamber via a liquid level adjustment water guide pipe.

[0009] Preferably, the main shell is provided with a manhole at the positions of the liquid inlet chamber, mixing chamber, settling chamber, oil chamber, and water chamber, respectively, for observing the liquid level and other conditions in the liquid inlet area, packing area, and settling area of ​​the main shell.

[0010] Preferably, a safety valve port is provided on the main housing at the mixing chamber location.

[0011] Preferably, a pressure gauge port is provided on the main housing at the location of the settling chamber.

[0012] The beneficial effects of this utility model are as follows: The oil-water-gas interface separation device of this utility model, through the application of the first and second drain pipes in the petroleum processing separation process, effectively solves the problem that existing three-phase separation devices are unable to remove impurities floating on the surface of the oil-gas interface and the surface of the oil-water interface during the separation process, while improving the separation accuracy and optimizing the separation effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the structure of an oil-water interface separation device provided in an embodiment of this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the middle part of the structure on the right.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Main housing; 2. Corrugated packing; 3. Metal baffle; 4. Baffle; 5. Oil-water separator; 6. First drain pipe; 7. Second drain pipe; 8. Air outlet; 9. Wire mesh demister; 10. Liquid inlet; 11. Drain outlet; 12. Liquid level gauge; 13. Liquid level measuring device; 14. Oil outlet; 15. Water outlet; 16. Liquid level adjustment water guide pipe; 17. Manhole; 18. Safety valve port; 19. Pressure gauge port.

[0018] Liquid inlet chamber 101, mixing chamber 102, settling chamber 103, oil chamber 104, water chamber 105. Detailed Implementation

[0019] 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.

[0020] Example 1, such as Figures 1 to 2 As shown, an oil-water interface separation device includes a main housing 1. The inner cavity of the main housing 1 is divided into an inlet chamber 101, a mixing chamber 102, a settling chamber 103, and an oil-water separation chamber from left to right by a corrugated packing 2, a metal baffle 3, and a baffle 4. The oil-water separation chamber is further divided into an oil chamber 104 and a water chamber 105 by a transversely arranged oil-water baffle 5. At the bottom of the main housing 1, located at the settling chamber 103, a first drain pipe 6 and a second drain pipe 7 are arranged from left to right. The first drain pipe 6 and the second drain pipe 7 serve to discharge impurities floating on the surface of the oil, gas, and water interface during the separation process. The first drain pipe is used to discharge impurities floating on the surface of the oil-water interface, and the second drain pipe is used to discharge impurities floating on the surface of the oil-gas interface. A wire mesh demister 9 is arranged at the bottom outlet of the air outlet 8 on the top right side of the inner cavity of the main housing 1 to eliminate foam in the settled gas and liquid, and to further separate the gas from the separated gas and liquid so that it can be discharged outward through the air outlet.

[0021] Furthermore, such as Figure 1 As shown, the main housing 1 has a liquid inlet 10 on the top left side that communicates with the liquid inlet chamber 101; the main housing 1 has several drain outlets 11 at the bottom; a liquid level gauge 12 is provided on the main housing 1 on the upper and lower sides of the mixing chamber 102, which is a high level gauge on the upper side and a low level gauge on the lower side; a set of liquid level measuring instruments 13 is provided on the main housing 1 at the positions of the oil chamber 104 and the water chamber 105, which is a high level gauge and a low level gauge.

[0022] Furthermore, such as Figure 1 and Figure 2 As shown, the main housing 1 has an oil outlet 14 at the bottom of the oil chamber 104; the main housing 1 has a water outlet 15 at the bottom of the water chamber 105; the bottom of the baffle 4 is connected to the water chamber 105 through a liquid level adjusting water guide pipe 16.

[0023] Furthermore, such as Figure 1 and Figure 2 As shown, the main housing 1 is provided with a manhole 17 at the positions of the liquid inlet chamber 101, mixing chamber 102, settling chamber 103, oil chamber 104, and water chamber 105, respectively, for the installation, maintenance, and inspection of the internal components of the main housing and the internal environment of the housing.

[0024] Furthermore, such as Figure 1 As shown, a safety valve port 18 is provided on the main housing 1 at the mixing chamber 102.

[0025] Furthermore, such as Figure 1 As shown, a pressure gauge port 19 is provided on the main housing 1 at the position of the settling chamber 103.

[0026] During operation, the oil-water-gas mixture flows into the equipment's inlet chamber through the inlet. The liquid level rises continuously with the flow rate, reaching a set value. At this point, the mixture undergoes initial separation through corrugated packing and flows into the mixing chamber, resulting in a mixed liquid. Next, the mixture in the mixing chamber undergoes secondary separation through TP plate packing (i.e., metal baffles), forming a gas-oil-water interface mixture. When the liquid level in the mixing chamber reaches the set control range as measured by the level gauge, the first drain pipe discharges impurities floating on the oil-water interface, and the second drain pipe discharges impurities floating on the oil-gas interface. Specifically:

[0027] (1) The gas and liquid in the upper gas interface are separated again by the top wire mesh demister and discharged out through the gas outlet; (2) The oil in the middle oil interface flows into the oil chamber through the baffle and is discharged through the bottom oil outlet after the oil level is measured by the oil chamber level measuring device to reach the required liquid level height.

[0028] (3) The water in the bottom water interface is introduced into the water chamber through the liquid level adjustment water pipe. After the liquid level is measured by the water chamber liquid level measuring device and the liquid level height requirement is reached, it is discharged through the bottom water outlet.

[0029] Obviously, the above-described embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.

Claims

1. An oil-gas-water interface separation device, comprising a main shell, characterized in that: The inner cavity of the main shell is divided into an inlet chamber, a mixing chamber, a settling chamber, and an oil-water separation chamber from left to right by corrugated packing, metal baffles, and baffles. The oil-water separation chamber is further divided into an oil chamber and a water chamber by a horizontally arranged oil-water baffle. The bottom of the main shell, located at the settling chamber, is provided with a first drain pipe and a second drain pipe from left to right. A wire mesh demister is provided at the bottom outlet of the air outlet on the right side of the top of the inner cavity of the main shell.

2. The oil-gas-water interface separation device as described in claim 1, characterized in that: The main housing has an inlet port on the top left side that communicates with the liquid inlet chamber; the main housing has several drain ports at the bottom; a liquid level gauge is provided on the main housing on the upper and lower sides of the mixing chamber, which is a high level gauge on the upper side and a low level gauge on the lower side; a set of liquid level measuring instruments is provided on the main housing at the oil chamber and water chamber, which is a high level gauge and a low level gauge.

3. The oil-gas-water interface separation device as described in claim 1, characterized in that: The main housing has an oil outlet at the bottom of the oil chamber; the main housing has a water outlet at the bottom of the water chamber; the bottom of the baffle is connected to the water chamber through a liquid level adjustment water guide pipe.

4. The oil-gas-water interface separation device as described in claim 1, characterized in that: The main shell is provided with a manhole at the locations of the liquid inlet chamber, mixing chamber, settling chamber, oil chamber, and water chamber, respectively.

5. The oil-gas-water interface separation device as described in claim 1, characterized in that: A safety valve port is provided on the main housing at the mixing chamber location.

6. The oil-gas-water interface separation device as described in claim 1, characterized in that: A pressure gauge port is provided on the main casing at the location of the settling chamber.

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