Automatic control device capable of improving gas-liquid separation efficiency of T-shaped tubular separator

Abstract

The utility model discloses an automatic control device capable of improving the gas-liquid separation efficiency of a T-shaped tubular separator, and relates to the technical field of separators, the automatic control device comprises an upstream separation shell and a downstream separation shell, the upper side of the upstream separation shell is provided with a feed port and a first exhaust port, and the lower side of the downstream separation shell is provided with a water outlet pipe and an oil outlet pipe; an exhaust port II is formed in the upper side of the downstream separation shell, and an adjusting valve is mounted on a pipeline connected between the upstream separation shell and the downstream separation shell. The liquid level sensor is used for determining the gas-liquid interface in the upstream separation shell, the gas-liquid interface serves as an adjusting signal of the opening state of a gas channel, if it is detected that the gas-liquid interface is lower than a set value, an electronic signal is automatically generated to control the adjusting valve to increase the opening, and otherwise, the adjusting valve is controlled to reduce the opening. By setting parameters of the liquid level sensor, the liquid level in the upstream separation shell can be kept at an ideal position, the degassing effect of the separator is guaranteed, potential safety hazards caused by liquid channeling are eliminated, and the treatment efficiency of equipment is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of separators, and in particular relates to an automatic control device capable of improving the gas-liquid separation efficiency of a T-tube separator. Background Art

[0002] The tubular separator is a new type of oil, gas and water three-phase separation equipment, which is widely used in oil, gas and water three-phase separation in offshore oil fields. It has the advantages of simple operation and small footprint. The tubular separator is divided into two parts, namely the upstream T-type multi-branch pipeline gas-liquid separation device and the downstream eccentric pipeline oil-water separation device. The function of the T-type tube is to separate the gas in the mixed liquid produced by the oil well and realize the gas-liquid two-phase separation of the mixed liquid. The function of the eccentric tube is to achieve oil-water two-phase separation of the degassed oil-water mixture. The way the T-type tube controls the degassing amount of the oil, gas and water mixture mainly relies on the pressure regulating valve at the gas outlet of the T-type tube to control the degassing amount of the oil, gas and water mixture. That is, the sensor at the top of the pipeline generates an electronic signal to automatically control the regulating valve at the gas outlet to form a logical control. When the pressure in the pipeline is too high, the regulating valve opens wide, otherwise the regulating valve opens small.

[0003] This traditional method of regulating the opening of the gas outlet valve by pressure cannot make timely targeted adjustments to control the gas volume in the pipeline in the face of changes in process conditions and medium properties. It has the following main shortcomings:

[0004] When the gas-liquid ratio of the produced liquid is low, the oil-water mixture may leak into the downstream of the gas outlet, damaging downstream equipment such as the gas flow meter; and usually the downstream of the T-type pipe gas line is connected to the flare system, and oil leakage from the pipeline may cause the flare to drip, which is a dangerous situation and affects the safety of personnel and property.

[0005] When the gas-liquid ratio of the produced liquid is high, the degassing effect of the upstream T-tube is insufficient, making it difficult for a large amount of gas to be removed from the T-tube. As the oil-water mixture enters the downstream eccentric tube, a plug flow or liquid turbulence is formed in the eccentric tube. The change in flow pattern has a serious impact on the separation effect. At the same time, the gas that is not discharged in the T-tube accumulates in the upper inner tube space of the eccentric tube. The oil and water are difficult to separate due to the increase in gas partial pressure, resulting in poor oil-water separation effect of the tubular separator, oil mixing in water, and serious environmental pollution.

[0006] Secondly, when the mixed liquid with gas enters the T-tube separation mechanism, the mixed liquid needs to be filtered. In order to ensure the filtering effect, multiple layers of filter screens are usually installed. However, when the filter screen is filtering, the liquid is blocked and its flow rate is reduced. If the flow rate is too low, it may also cause oil droplets to form a stable emulsion layer in the separator, which will hinder the further separation of oil and water. Utility Model Content

[0007] The purpose of this utility model is to provide an automatic control device that can improve the gas-liquid separation efficiency of a T-type tube separator, so as to solve one of the technical problems proposed in the background technology that in the face of changes in process conditions and medium properties, it is impossible to make timely targeted adjustments to control the gas volume in the pipeline.

[0008] To achieve the above-mentioned objectives, the specific technical solution of the present invention is as follows: an automatic control device that can improve the gas-liquid separation efficiency of a T-type tube separator, comprising an upstream separation shell and a downstream separation shell, the upper side of the upstream separation shell is provided with a feed port and an exhaust port 1, the lower side of the downstream separation shell is provided with a water outlet pipe and an oil outlet pipe, the upper side of the downstream separation shell is provided with an exhaust port 2, a regulating valve is installed on the pipe connecting the upstream separation shell and the downstream separation shell, a liquid level sensor is installed on the side wall of the upstream separation shell, and the liquid level sensor is used to detect the gas-liquid interface in the upstream separation shell.

[0009] Preferably, a first filter screen is fixedly provided inside the upstream separation shell, a second filter screen is fixedly provided on one side of the first filter screen, a hollow tube 2 is rotatably provided on one side of the first filter screen, one end of the hollow tube 2 is connected to an adjusting filter screen, and the outer side of the hollow tube 2 is connected to a transmission member 1.

[0010] Preferably, two inner filter screens are hinged inside the second filter screen, one side of the two inner filter screens is hinged to one end of two connecting rods respectively, and the other ends of the two connecting rods are hinged to both sides of the movable plate respectively.

[0011] Preferably, a rotating rod is rotatably arranged at the center of the first filter screen and the second filter screen, one end of the rotating rod passes through the upstream separation shell and is connected to one end of the transmission member 2, the other end of the transmission member 2 is rotatably connected to the outer wall of the upstream separation shell, and a gear 3 is connected to the rotating shaft of the transmission member 2, and the gear 3 is engaged with a gear 4 rotatably arranged on the outer wall of the upstream separation shell.

[0012] Preferably, the other end of the rotating rod is connected to a screw rod, and the screw rod is threadedly connected to the movable plate.

[0013] Preferably, a hollow tube 1 is rotatably provided on one side of the first filter screen, a brush is connected to the hollow tube 1, one end of the hollow tube 1 passes through the upstream separation shell and is connected to gear 1, and the gear 1 is engaged with gear 2 rotatably provided on the outside of the upstream separation shell.

[0014] Preferably, the second hollow tube is rotatably disposed in the first hollow tube, and the rotating rod is rotatably disposed in the second hollow tube.

[0015] Preferably, annular teeth are provided in the first filter screen, one end of the brush is connected to a rotating gear, and the rotating gear is meshed with the teeth.

[0016] Preferably, the upper sides of the first filter screen and the second filter screen are both provided with openings.

[0017] Preferably, a plurality of staggered baffles are provided in the upstream separation shell, and a mist collector is provided at the lower end of the exhaust port 1.

[0018] The utility model provides an automatic control device capable of improving the gas-liquid separation efficiency of a T-type tube separator, which has the following advantages:

[0019] This automatic control device, designed to improve the gas-liquid separation efficiency of a T-tube separator, utilizes a liquid level sensor to determine the gas-liquid interface within the upstream separation shell, using this interface as a signal to regulate the gas passageway's opening. If the gas-liquid interface is below a set value, an electronic signal is automatically generated to control the regulating valve to open wider; otherwise, it controls the regulating valve to open narrower. By adjusting the liquid level sensor parameters, the liquid level within the upstream separation shell is maintained at an ideal position, ensuring effective degassing of the separator, eliminating potential safety hazards associated with liquid crosstalk, and effectively improving the equipment's processing efficiency.

[0020] 2. This is an automatic control device that can improve the gas-liquid separation efficiency of the T-tube separator. The first filter screen and the second filter screen arranged in the upstream separation shell filter impurities in the liquid. At the same time, the hollow tube is used to rotate the adjusting filter screen so that the meshes of the adjusting filter screen and the first filter screen are staggered, thereby adjusting the liquid flow rate. The rotating rod is used to rotate the screw rod to move the movable plate with the connecting rod, and the connecting rod drives the inner filter screen to rotate, further increasing the flow rate of the liquid and keeping the flow rate of the liquid within a reasonable range, thereby improving the gas-liquid separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic plan view of the overall structure of the utility model;

[0024] Figure 3 This is a schematic cross-sectional view of the upstream separation shell structure of the present utility model;

[0025] Figure 4 This is a schematic structural diagram of the first filter and the second filter of the present invention;

[0026] Figure 5 This is a schematic diagram of the tooth structure of the present utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the transmission component 1 and the transmission component 2 of the present utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the second filter screen of the present invention;

[0029] Figure 8 This is a schematic diagram of the filter medium flow direction of the present utility model.

[0030] Explanation of the marks in the figure: 1. Upstream separation shell; 11. Feed inlet; 12. Exhaust port 1; 13. Baffle; 14. Mist catcher; 2. Downstream separation shell; 21. Water outlet pipe; 22. Oil outlet pipe; 23. Exhaust port 2; 3. Liquid level sensor; 4. Control valve; 5. First filter screen; 51. Teeth; 6. Second filter screen; 61. Inner filter screen; 62. Connecting rod; 63. Moving plate; 7. Adjusting filter screen; 71. Hollow tube 2; 72. Transmission part 1; 8. Hollow tube 1; 81. Gear 1; 82. Gear 2; 9. Brush; 91. Rotating gear; 92. Rotating rod; 93. Screw; 94. Gear 3; 95. Gear 4; 96. Transmission part 2. DETAILED DESCRIPTION

[0031] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0034] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0035] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0036] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of an automatic control device of the present invention that can improve the gas-liquid separation efficiency of a T-tube separator in conjunction with the accompanying drawings.

[0037] like Figures 1-8 As shown, the utility model is an automatic control device that can improve the gas-liquid separation efficiency of a T-type tube separator, comprising an upstream separation shell 1 and a downstream separation shell 2. The upper side of the upstream separation shell 1 is provided with a feed port 11 and an exhaust port 12, the lower side of the downstream separation shell 2 is provided with a water outlet pipe 21 and an oil outlet pipe 22, the upper side of the downstream separation shell 2 is provided with an exhaust port 23, a plurality of staggered baffles 13 are provided in the upstream separation shell 1, and a mist collector 14 is provided at the lower end of the exhaust port 12.

[0038] A regulating valve 4 is installed on the pipe connecting the upstream separation shell 1 and the downstream separation shell 2. The regulating valve 4 controls the flow rate of the liquid. A liquid level sensor 3 is installed on the side wall of the upstream separation shell 1. The liquid level sensor 3 is used to detect the gas-liquid interface in the upstream separation shell 1. The liquid level sensor 3 can detect the gas-liquid interface in the upstream separation shell 1. If the gas-liquid interface is lower than the set value, an electronic signal is automatically generated to control the regulating valve 4 to increase the opening. Otherwise, the regulating valve 4 reduces the opening. By setting the parameters of the liquid level sensor 3, the liquid level in the upstream separation shell 1 can be maintained at an ideal position, thereby ensuring the degassing effect of the separator, eliminating the safety hazards caused by liquid crosstalk, and effectively improving the equipment processing efficiency.

[0039] In order to filter impurities in the liquid, a first filter screen 5 is fixedly installed inside the upstream separation shell 1, and a second filter screen 6 is fixedly installed on one side of the first filter screen 5. Openings are provided on the upper sides of the first filter screen 5 and the second filter screen 6, and the openings at the upper ends are conducive to the discharge of gas.

[0040] A hollow tube 2 71 is rotatably provided on one side of the first filter screen 5, and an adjusting filter screen 7 is connected to one end of the hollow tube 2 71. The adjusting filter screen 7 is a semi-annular structure and is connected to a transmission member 1 72 on the outside of the hollow tube 2 71. The transmission member 1 72 is driven by a motor. When the hollow tube 2 71 rotates, the adjusting filter screen 7 is prompted to make a circular motion around the first filter screen 5, and the liquid flow rate is adjusted by the staggered meshes of the first filter screen 5 and the second filter screen 6.

[0041] Furthermore, two inner filters 61 are hinged inside the second filter 6, and one side of the two inner filters 61 is hinged to one end of two connecting rods 62 respectively, and the other ends of the two connecting rods 62 are hinged to both sides of the movable plate 63 respectively. When the movable plate 63 moves, prompting the two connecting rods 62 to pull the inner filter 61 outward, the flow rate of the liquid is further adjusted.

[0042] Among them, a rotating rod 92 is rotatably set at the center of the first filter screen 5 and the second filter screen 6, one end of the rotating rod 92 passes through the upstream separation shell 1 and is connected to one end of the transmission member 2 96, and the other end of the transmission member 2 96 is rotatably connected to the outer wall of the upstream separation shell 1, and the rotating shaft of the transmission member 2 96 is connected to the gear three 94, and the gear three 94 is meshed with the gear four 95 rotatably set on the outer wall of the upstream separation shell 1. The other end of the rotating rod 92 is connected to the screw rod 93, and the screw rod 93 is threadedly connected to the movable plate 63. The gear four 95 is driven by the motor. Therefore, when the gear four 95 and the gear three 94 are meshed, the gear three 94 drives the transmission member 2 96 to operate. Through the operation of the transmission member 2 96, the rotating rod 92 is prompted to rotate with the screw rod 93. At the same time, the rotating rod 92 rotates in the hollow tube 2 71. Since the movable plate 63 is threadedly connected to the screw rod 93, the two inner filters 61 rotate automatically.

[0043] It is worth noting that a hollow tube 8 is rotatably provided on one side of the first filter screen 5, and a brush 9 is connected to the hollow tube 8. One end of the hollow tube 8 passes through the upstream separation shell 1 and is connected to the gear 1 81. The gear 1 81 is engaged with the gear 2 82 rotatably provided on the outside of the upstream separation shell 1. The gear 2 82 is driven by a motor. When the gear 1 81 rotates, it drives the brush 9 to clean the first filter screen 5 and the adjustment filter screen 7 rotated to the upper side, thereby improving the filtering effect of the two. Since the hollow tube 1 8 and the hollow tube 2 71 are rotatably connected, the rotation of the hollow tube 1 8 does not affect the use of the hollow tube 2 71.

[0044] In addition, an annular tooth 51 is provided in the first filter 5 , and one end of the brush 9 is connected to a rotating gear 91 . The rotating gear 91 is engaged with the tooth 51 , so that the brush 9 rotates more stably.

[0045] Among them, the transmission component 1 72 and the transmission component 2 96 are both pulleys and belts.

[0046] The working principle of an automatic control device that can improve the gas-liquid separation efficiency of a T-type tube separator is as follows: a liquid level sensor 3 is used to determine the gas-liquid interface in the upstream separation shell 1, which is used as a regulating signal for the opening state of the gas passage. If the gas-liquid interface is detected to be lower than the set value, an electronic signal is automatically generated to control the regulating valve 4 to increase the opening, otherwise the regulating valve 4 is controlled to reduce the opening. The first filter 5 and the second filter 6 filter impurities in the liquid. At the same time, the hollow tube 8 is used to rotate the regulating filter 7 so that the meshes of the regulating filter 7 and the first filter 5 are staggered, thereby adjusting the liquid flow rate. The rotating rod 92 is used to rotate the screw rod 93 to move the movable plate 63 with the connecting rod 62. The connecting rod 62 pushes the inner filter 61 to rotate, further increasing the flow rate of the liquid and keeping the flow rate of the liquid within a reasonable range.

[0047] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. An automatic control device capable of improving the gas-liquid separation efficiency of a T-tube separator, comprising an upstream separation shell (1) and a downstream separation shell (2), wherein the upper side of the upstream separation shell (1) is provided with a feed inlet (11) and an exhaust port 1 (12), the lower side of the downstream separation shell (2) is provided with a water outlet pipe (21) and an oil outlet pipe (22), and the upper side of the downstream separation shell (2) is provided with an exhaust port 2 (23), characterized in that: A regulating valve (4) is installed on the pipeline connecting the upstream separation shell (1) and the downstream separation shell (2), and a liquid level sensor (3) is installed on the side wall of the upstream separation shell (1). The liquid level sensor (3) is used to detect the gas-liquid interface in the upstream separation shell (1).

2. The automatic control device capable of improving the gas-liquid separation efficiency of the T-tube separator according to claim 1, characterized in that: A first filter screen (5) is fixedly arranged inside the upstream separation shell (1), a second filter screen (6) is fixedly arranged on one side of the first filter screen (5), a second hollow tube (71) is rotatably arranged on one side of the first filter screen (5), one end of the second hollow tube (71) is connected to an adjustment filter screen (7), and the outer side of the second hollow tube (71) is connected to a transmission member (72).

3. The automatic control device capable of improving the gas-liquid separation efficiency of the T-tube separator according to claim 2, characterized in that: Two inner filter screens (61) are hinged inside the second filter screen (6), one side of the two inner filter screens (61) is hinged to one end of two connecting rods (62), and the other ends of the two connecting rods (62) are hinged to two sides of the movable plate (63).

4. The automatic control device capable of improving the gas-liquid separation efficiency of the T-tube separator according to claim 3, characterized in that: A rotating rod (92) is rotatably arranged at the center of the first filter screen (5) and the second filter screen (6), one end of the rotating rod (92) passes through the upstream separation shell (1) and is connected to one end of the transmission member 2 (96), the other end of the transmission member 2 (96) is rotatably connected to the outer wall of the upstream separation shell (1), and a gear 3 (94) is connected to the rotating shaft of the transmission member 2 (96), and the gear 3 (94) is meshed with a gear 4 (95) rotatably arranged on the outer wall of the upstream separation shell (1).

5. The automatic control device capable of improving the gas-liquid separation efficiency of the T-tube separator according to claim 4, characterized in that: The other end of the rotating rod (92) is connected to a screw rod (93), and the screw rod (93) is threadedly connected to the moving plate (63).

6. The automatic control device capable of improving the gas-liquid separation efficiency of the T-tube separator according to claim 5, characterized in that: A hollow tube (8) is rotatably provided on one side of the first filter screen (5), a brush (9) is connected to the hollow tube (8), one end of the hollow tube (8) passes through the upstream separation shell (1) and is connected to a gear (81), and the gear (81) is meshed with a gear (82) rotatably provided on the outside of the upstream separation shell (1).

7. The automatic control device capable of improving the gas-liquid separation efficiency of a T-tube separator according to claim 4, characterized in that: The second hollow tube (71) is rotatably disposed in the first hollow tube (8), and the rotating rod (92) is rotatably disposed in the second hollow tube (71).

8. The automatic control device capable of improving the gas-liquid separation efficiency of a T-tube separator according to claim 6, characterized in that: An annular tooth (51) is arranged inside the first filter screen (5), and one end of the brush (9) is connected to a rotating gear (91), and the rotating gear (91) is meshed with the tooth (51).

9. The automatic control device capable of improving the gas-liquid separation efficiency of the T-tube separator according to claim 8, characterized in that: The upper sides of the first filter screen (5) and the second filter screen (6) are both provided with openings.

10. The automatic control device capable of improving the gas-liquid separation efficiency of a T-tube separator according to claim 1, characterized in that: A plurality of staggered baffles (13) are arranged in the upstream separation shell (1), and a mist collector (14) is arranged at the lower end of the exhaust port 1 (12).

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