Inclined tube type water segregator

By using the driving device and baffle structure of the inclined tube water separator, the problem of reducing crude oil purity due to the extraction of impurities from the oil layer surface is solved, achieving more effective oil-water separation and impurity removal, and improving the purity and separation effect of crude oil.

CN223936438UActive Publication Date: 2026-02-24SHENGLI OIL FIELD XINDA PIPE IND TECH DEV CO LTD
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Patent Information

Application Number
CN202520461107.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-02-24
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

In the primary dehydration treatment of crude oil, existing horizontal free water removers directly extract impurities from the oil layer surface through the oil outlet, reducing the purity of the crude oil.

Method used

Design an inclined tube type water separator, which adopts a pushing device and a baffle structure. The pushing device drives the pushing component to extend and contract in the separation tank through a telescopic cylinder, pushing oil phase impurities to diffuse outward. The baffle changes the flow direction, increasing the collision opportunity between oil droplets and water droplets, thus promoting oil-water separation.

Benefits of technology

It improves the purity of crude oil, reduces impurities in the oil phase, enhances the separation effect, and improves the applicability of the separator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water segregators, in particular to an inclined pipe type water segregator which comprises a supporting frame, a separating tank is arranged on the supporting frame, the separating tank and the ground are installed at an angle of 12 degrees through the supporting frame, a liquid inlet pipe is arranged on the side end face of the upper portion of the separating tank, a water outlet pipe is arranged on the side end face of the lower portion of the separating tank, and an oil outlet pipe is arranged on the top face of the upper portion of the separating tank. According to the water separator, disturbance of an inlet to an oil phase on the upper portion of the separator is reduced through the arranged baffle, impurities on the periphery of a pipe opening of the oil outlet pipe are pushed to be diffused outwards through the arranged pushing device, and therefore the oil phase on the upper portion of the separator is prevented from being disturbed. Impurities in an oil phase extracted by an external conveying pipe are reduced, and the purity of crude oil is improved.
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Description

Technical Field

[0001] This utility model relates to the field of water distributor technology, and in particular to an inclined tube type water distributor. Background Technology

[0002] Primary dehydration treatment of crude oil refers to the process of removing free water and some emulsified water from crude oil through physical or chemical methods after crude oil extraction.

[0003] Currently, the most widely used method in the primary dehydration treatment of crude oil is the horizontal free water separator. The horizontal free water separator achieves oil-water separation through gravity settling and forced coalescence, forming clear upper and lower stratifications of oil and water phases inside the device. However, the outlet of the horizontal free water separator is relatively close to the oil-water interface, resulting in poor resistance to disturbances and fluctuations, thus affecting the separation effect. Therefore, Chinese utility model patent CN200982188Y discloses a high-efficiency free water removal device, which includes: a support; a separator mounted on the support, the separator tank... It forms an angle with the horizontal plane; a water outlet is located at the lower part of the separator; an oil outlet is located at the upper part of the separator; and a liquid inlet pipe is located on the upper side wall of the separator. The removal equipment adopts an upward angle structure, which has a large floating distance and good anti-interference separation effect. However, the removal device also has the following problems: some floating matter, emulsion flocs, and some light scum will float on the oil layer after separation due to the floating of microorganisms and organic matter on the surface of the oil layer during the dehydration process. The above impurities are directly extracted from the oil outlet of the separator, which reduces the purity of the crude oil.

[0004] Therefore, this application provides an inclined tube type water distributor to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide an inclined tube type water separator to solve the problems in the prior art, such as impurities on the surface of the oil layer being extracted from the oil outlet of the separator, which reduces the purity of the crude oil.

[0006] To solve the above-mentioned technical problems, this utility model provides an inclined tube type water separator, including a support frame, a separation tank is set on the support frame, the support frame installs the separation tank at a 12° angle to the ground, an inlet pipe is set on the upper side end face of the separation tank, a water outlet pipe is set on the lower side end face of the separation tank, an oil outlet pipe is set on the top surface of the upper part of the separation tank, and a pushing device is set inside the oil outlet pipe. The pushing device is used to push the impurities located around the oil outlet pipe inside the separation tank to diffuse outward.

[0007] A further improvement of this utility model is that three support frames are provided, which respectively support the bottom surface of the upper, middle and lower parts of the separation tank.

[0008] A further improvement of this utility model is that a baffle is installed inside the separator near the inlet pipe, the outer periphery of the baffle is connected to the inner wall of the separator, and the bottom surface of the baffle extends to one-fifth of the height of the separator.

[0009] A further improvement to the technical solution of this utility model is that the liquid inlet pipe is directly opposite the baffle.

[0010] A further improvement of this utility model is that: a corrugated plate packing is provided in the lower part of the separator, and the outer periphery of the corrugated plate abuts against the inner wall of the separator.

[0011] A further improvement of the present invention is that: the outer port of the oil outlet pipe is connected to a first flange, a second flange is provided on the upper surface of the first flange, and the top surface of the second flange is connected to an external transmission pipe.

[0012] A further improvement of the present invention is that the pushing device includes a fixed block symmetrically arranged on the outside of the external pipeline on the second flange, a telescopic cylinder is fixed on the fixed block, and the telescopic rod of the telescopic cylinder is adapted to pass through the fixed block, the second flange, the first flange and extend into the separator tank through the inner cavity of the oil outlet pipe.

[0013] A further improvement to the technical solution of this utility model is that a pusher is provided at the end of the telescopic rod.

[0014] A further improvement of the present invention is that the pushing component includes a rubber bellows, the top surface of which is connected to the external transmission pipe, and the bottom surface of which is connected to an annular pushing plate, the surface of which is connected to the end of the telescopic rod.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects:

[0016] 1. This utility model provides an inclined tube type water separator, which is equipped with a pushing device. The telescopic cylinder in the pushing device drives the pushing component to extend and retract inside the separation tank. When it extends downward, it pushes the oil outside the oil outlet of the separation tank to diffuse to the outer periphery of the oil outlet pipe, thereby driving the floating impurities on the oil outside the oil outlet pipe to diffuse to the outer periphery of the oil outlet pipe, reducing the impurities in the oil phase extracted by the external pipeline and improving the purity of the crude oil. In addition, when the liquid level of the separated oil phase is low, the extendable structure of the pushing component can continue to extract the oil phase, improving the applicability of the separation tank under different working conditions.

[0017] 2. The present invention provides an inclined tube type water separator, wherein a baffle is installed in the separator tank near the inlet pipe, and the inlet pipe is directly opposite the baffle. The baffle can change the flow direction and speed of the oil-water mixture entering from the inlet pipe, increase the collision opportunity between oil droplets and water droplets, promote their coalescence and separation, and on the other hand, make the oil-water mixture flow from the lower part of the baffle to the lower part of the separator tank, and reduce the turbulence and disturbance of the upper oil phase when the oil-water mixture enters the equipment after the oil-water separation in the separator tank. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an inclined tube type water distributor.

[0020] Figure 2 This is a cross-sectional view of the separator tank;

[0021] Figure 3 A schematic diagram of the oil outlet pipe, the propulsion device, and the separator;

[0022] Figure 4 A schematic diagram of the propulsion device and the oil outlet pipe;

[0023] Figure 5 A schematic diagram of the driving device;

[0024] Reference numerals in the attached drawings: 1. Support frame; 2. Separator tank; 3. Inlet pipe; 4. Outlet pipe; 5. Outlet pipe; 6. Pushing device; 7. Baffle; 8. Corrugated plate; 9. Fixing block; 10. Telescopic cylinder; 11. Telescopic rod; 51. First flange; 52. Second flange; 53. Outlet pipe; 61. Pushing component; 611. Rubber corrugated pipe; 612. Annular push plate. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The present invention will be further explained below with reference to specific embodiments.

[0029] like Figure 1-5 As shown, this embodiment provides an inclined tube type water separator, including a support frame 1, on which a separation tank 2 is mounted. Three support frames 1 are provided, supporting the upper, middle, and lower bottom surfaces of the separation tank 2 respectively. The support frame 1 mounts the separation tank 2 at a 12° angle to the ground. An inlet pipe 3 is provided on the upper side surface of the separation tank 2, and a water outlet pipe 4 is provided on the lower side surface of the separation tank 2. The 12° angle mounting of the separation tank 2 to the ground allows the oil-water mixture entering the separation tank 2 from the inlet pipe 3 to automatically flow towards the water outlet pipe under the influence of gravity. Upon encountering the wall, the mixture is reflected back at a certain angle. Due to the density difference, the oil phase accumulates in the separator. The upper section contains the oil phase, while the lower section contains the aqueous phase. The oil droplets in the reflux collide and merge with the oil droplets entering the equipment later to form an oil film, which is beneficial for oil-water separation. The oil film flows continuously under the action of gravity difference. Due to the continuous flow of the oil film, the surface is constantly renewed, which increases the sliding speed of the film and reduces the thickness of the film. This reduces the time for droplet coalescence, thus increasing the upper limit of the effective coalescence flow rate of the oil droplets and increasing the allowable flow rate, thereby increasing the throughput. An oil outlet pipe 5 is set on the top surface of the upper part of the separator 2. A pushing device 6 is set inside the oil outlet pipe 5. The pushing device 6 is used to push the impurities around the opening of the oil outlet pipe 5 in the separator 2 to diffuse outward, increasing the purity of the extracted oil phase.

[0030] like Figure 3-5As shown, in this embodiment, the outer port of the oil outlet pipe 5 is connected to the first flange 51, and a second flange 52 is provided on the upper surface of the first flange 51. The first flange 51 and the second flange 52 are fixed together by bolts. The top surface of the second flange 52 is connected to the external transmission pipe 53, which is connected to the pumping unit (not shown in the figure). The pushing device 6 includes a fixing block 9 symmetrically arranged on the second flange 52 outside the external transmission pipe 53. A telescopic cylinder 10 is fixed on the fixing block 9. The downward telescopic rod 11 of the telescopic cylinder 10 is adapted to pass through the fixing block 9, the second flange 52, and the first flange 51 in sequence and extends into the separator tank 2 through the inner cavity of the oil outlet pipe 5. The end of the telescopic rod 11 is provided with a pusher 61, which includes a rubber bellows 611. Because the rubber bellows 611 is made of rubber and has a corrugated structure, it has extensibility. The top surface of the rubber bellows 611 is connected to the external delivery pipe 53, and the bottom surface of the rubber bellows 611 is connected to an annular pusher plate 612. The surface of the annular pusher plate 612 is connected to the end of the telescopic rod 11. The working principle of this pusher device is as follows: After the oil-liquid mixture entering the separator 2 undergoes stratification separation, due to the density difference, the oil phase accumulates in the upper section of the separator, and the water phase is in the lower section. When the telescopic cylinder 10 is activated, the telescopic rod 11 moves downward, driving... The rubber bellows 611 in the pusher 61 inside the oil outlet pipe 5 extends, thereby driving the annular pusher plate 612 to move downward. The oil phase around the outer periphery of the oil outlet pipe 5 diffuses towards the outer periphery of the oil outlet pipe 5 under the push of the rubber bellows 611 and the annular pusher plate 612, thereby driving the impurities floating on the oil phase to diffuse towards the outer periphery of the oil outlet pipe 5. At the same time, the pumping unit continuously extracts the oil phase, which is drawn into the external delivery pipe 53 through the rubber bellows 611 in the pusher 61. The telescopic rod 11 moves upward, and the oil phase that has diffused outward and the floating impurities flow back. Before the oil phase and the floating impurities have completely flowed back, the telescopic cylinder 10 controls the telescopic rod 11 to move downward. The rubber bellows 611 continues to extend, and the annular pusher plate 612 moves downward, pushing the oil phase and floating impurities at the outlet of the oil pipe 5 in the separator 2 to diffuse to the outside of the outlet of the oil pipe 5. This reduces the floating impurities in the oil phase that the pumping unit draws upward from the rubber bellows 611, and also reduces the impurities floating on the surface of the oil phase that the pumping unit draws upward from the rubber bellows 611 because the pusher 61 moves into the oil phase layer. This improves the purity of the crude oil after separation. In addition, when the liquid level of the separated oil phase is low, the extendable structure of the pusher 61 can continue to draw oil phase, improving the applicability of the separator 2 under different working conditions.

[0031] like Figure 2As shown in this embodiment, a baffle 7 is installed inside the separator 2 near the inlet pipe 3. The outer periphery of the baffle 7 is connected to the inner wall of the separator 2, and the bottom surface of the baffle 7 extends to one-fifth of the height of the separator 2. The inlet pipe 3 is directly opposite the baffle 7. The baffle 7 can change the flow direction and speed of the oil-water mixture entering from the inlet pipe 3, increase the collision opportunities between oil droplets and water droplets, and promote their coalescence and separation. On the other hand, it allows the oil-water mixture to flow from the lower part of the baffle 7 to the lower part of the separator 2, and can reduce the turbulence and disturbance to the upper oil phase when the oil-water mixture enters the equipment after the upper oil-water separation.

[0032] Furthermore, in this embodiment, a corrugated plate 8 packing is provided in the lower part of the separator 2. The outer periphery of the corrugated plate 8 abuts against the inner wall of the separator 2. The corrugated plate 8 can increase the chance of the dispersed phase coalescing in the continuous phase, accelerate the oil-water separation speed and improve the oil-water separation quality.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the 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. Such 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.

Claims

1. A slanted tube type water distributor, characterized in that, Includes a support frame (1), on which a separation tank (2) is installed. The support frame (1) installs the separation tank (2) at a 12° angle to the ground. An inlet pipe (3) is installed on the upper side end face of the separation tank (2), a water outlet pipe (4) is installed on the lower side end face of the separation tank (2), and an oil outlet pipe (5) is installed on the top surface of the upper part of the separation tank (2). A pushing device (6) is installed inside the oil outlet pipe (5). The pushing device (6) is used to push the impurities located around the oil outlet pipe (5) inside the separation tank (2) to diffuse outward.

2. The inclined tube type water distributor according to claim 1, characterized in that, Three support frames (1) are provided, which support the bottom of the upper, middle and lower parts of the separation tank (2) respectively.

3. The inclined tube type water distributor according to claim 2, characterized in that, A baffle (7) is installed inside the separator (2) near the inlet pipe (3). The outer periphery of the baffle (7) is connected to the inner wall of the separator (2), and the bottom surface of the baffle (7) extends to one-fifth of the height of the separator (2).

4. The inclined tube type water distributor according to claim 1, characterized in that, The inlet pipe (3) is directly opposite the baffle (7).

5. A slanted tube type water distributor according to claim 1, characterized in that, The lower part of the separator (2) is filled with corrugated plate (8), and the outer periphery of the corrugated plate (8) abuts against the inner wall of the separator (2).

6. A slanted tube type water distributor according to claim 1, characterized in that, The outer port of the oil outlet pipe (5) is connected to the first flange (51), and the upper surface of the first flange (51) is provided with a second flange (52). The top surface of the second flange (52) is connected to the external transmission pipe (53).

7. A slanted tube type water distributor according to claim 1, characterized in that, The pushing device (6) includes a fixed block (9) symmetrically arranged on the outside of the external pipeline (53) on the second flange (52). A telescopic cylinder (10) is fixed on the fixed block (9). The telescopic rod (11) of the telescopic cylinder (10) extends downward through the fixed block (9), the second flange (52), the first flange (51) and through the inner cavity of the oil outlet pipe (5) to the separator (2).

8. A diagonal tube type water distributor according to claim 1, characterized in that, A pusher (61) is provided at the end of the telescopic rod (11).

9. A diagonal tube type water distributor according to claim 1, characterized in that, The pusher (61) includes a rubber bellows (611), the top surface of which is connected to the external transmission pipe (53), and the bottom surface of which is connected to an annular pusher plate (612), the surface of which is connected to the end of the telescopic rod (11).

Citation Information

Patent Citations

  • Highly-efficient free water removing device

    CN200982188Y