Wellhead natural gas gas-liquid separation device

Abstract

The invention relates to a wellhead natural gas gas-liquid separation device applied to the technical field of natural gas, which comprises a tank body, a detection mechanism, an adjustable separator and a separation intelligent controller, a vertical main shaft is arranged in the middle of an inner cavity of the tank body, and a plurality of umbrella plate separators are fixed on the main shaft along the axial direction of the main shaft; the detection mechanism comprises a detection shell mounted on the dispersion baffle, a thermoelectric refrigeration sheet mounted in an inner cavity of the detection shell, and a collection grid plate corresponding to the input pipe; the adjustable separator comprises a fixed umbrella plate fixed with the main shaft, a movable umbrella plate in sliding sleeve connection with the main shaft through a spline, and a telescopic piece installed with the main shaft, the output end of the telescopic piece is connected with the movable umbrella plate, and the movable umbrella plate and the fixed umbrella plate form a complete umbrella-shaped structure; a water content detection module, a temperature control module and a separation regulation and control module are arranged on the separation intelligent controller; by adopting the structure, the corresponding separation effect can be adjusted in real time according to the water content in the mixed gas, and the separation efficiency is improved while the separation effect is ensured.

Description

Technical Field

[0001] The invention relates to a gas-liquid separation device, in particular to a wellhead natural gas gas-liquid separation device applied in the field of natural gas technology. Background Art

[0002] The natural gas flowing out of the wellhead is almost saturated with gas phase water, and even carries a certain amount of liquid water. The presence of water in natural gas often causes serious consequences: natural gas containing CO2 and H2S forms acid in the presence of water and corrodes pipelines and equipment; forms natural gas hydrates under certain conditions and blocks valves, pipelines and equipment; reduces pipeline transportation capacity and causes unnecessary power consumption.

[0003] The invention patent with the publication number CN105268265A discloses a natural gas vertical gas-liquid separator, which has a vertical separation tank body, in which a demisting section at the top, a separation section in the middle, a liquid accumulation section at the bottom and a sediment storage section at the bottom are arranged. The demisting section has a gas outlet at the top, and multiple demisters are arranged in parallel in the demisting section; a feed port is arranged in the middle of the side wall of the separation section; a liquid accumulation section has a liquid level sensor, and a liquid outlet is arranged on the side wall of the lower half of the liquid accumulation section, and a control valve is arranged at the liquid outlet; a sewage outlet is arranged at the bottom of the sediment storage section. It introduces natural gas into the tank body, separates impurities in the natural gas by using a multi-stage processing structure, and realizes the function of processing gas with a large liquid content.

[0004] In the above scheme, during the natural gas extraction process, multi-layer umbrella plate separators will also be set in the tank to separate the liquid water in the natural gas. Since the content of liquid water in the natural gas does not remain constant, when the liquid water content is high, the number of umbrella plate separators is difficult to achieve a good separation effect. When the liquid water content is low, a large number of umbrella plate separators will also affect the flow rate of the gas, thereby affecting the natural gas extraction efficiency. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the content of liquid water in natural gas does not remain constant. When the liquid water content is high, the number of umbrella plate separators is difficult to achieve a good separation effect. When the liquid water content is low, a large number of umbrella plate separators will also affect the flow rate of the gas, thereby affecting the natural gas extraction efficiency.

[0006] In order to solve the above problems, the present invention provides a wellhead natural gas gas-liquid separation device, comprising:

[0007] The tank body has an input pipe connected to the middle of the tank body, a sewage pipe connected to the bottom of the tank body, an output pipe connected to the top of the tank body, a dispersion baffle fixedly connected to the inner wall of the tank body corresponding to the input pipe, a vertical main shaft is arranged in the middle of the inner cavity of the tank body, and a plurality of umbrella plate separators are fixed on the main shaft along its axial direction;

[0008] The detection mechanism includes a detection shell installed on the dispersion baffle, a thermoelectric cooling sheet installed in the inner cavity of the detection shell, and a collection grid corresponding to the input pipe. The top of the collection grid is plugged into the detection shell, and the lower end of the inner cavity of the detection shell is vertically slidably connected with a temperature conducting plate fixed to the end of the collection grid. The cooling end of the thermoelectric cooling sheet is arranged toward the temperature conducting plate, and a reset elastic member is installed between the bottom of the temperature conducting plate and the inner cavity of the detection shell. A distance sensor is installed at the bottom of the inner cavity of the detection shell, and the cooling end of the thermoelectric cooling sheet is connected to the main shaft through a cooling component.

[0009] An adjustable separator, wherein a plurality of adjustable separators are provided, and the adjustable separator comprises a fixed umbrella plate fixed to the main shaft, a dynamic umbrella plate slidably sleeved with the main shaft through a spline, and a telescopic member installed with the main shaft, wherein the output end of the telescopic member is connected to the dynamic umbrella plate, and the dynamic umbrella plate and the fixed umbrella plate form a complete umbrella structure;

[0010] A separation intelligent controller is arranged on one side of the tank body. A water detection module, a temperature control module and a separation control module are arranged on the separation intelligent controller. The input end of the water detection module is respectively connected with the temperature control module and the distance sensor signal, the output end of the water detection module is connected with the separation control module signal, the output end of the temperature control module is connected with the thermoelectric cooling plate signal, and the output end of the separation control module is connected with the telescopic part signal.

[0011] In the above-mentioned wellhead natural gas gas-liquid separation device, the corresponding separation effect can be adjusted in real time according to the water content in the mixed gas, thereby improving the separation efficiency while ensuring the separation effect.

[0012] As a further improvement of the present application, a temperature conducting rod is fixed to the bottom of the umbrella plate separator and the fixed umbrella plate, the temperature conducting rod is fixed to the main shaft, and the main shaft and the temperature conducting rod are both made of metal.

[0013] As a further improvement of the present application, a centrifugal mechanism is installed on the top of the main shaft, and the centrifugal mechanism includes a driving housing which is sleeved on the top of the main shaft and fixed to the inner wall of the tank body, a driving shaft which is linked to the top of the main shaft through a gear set, and a driving member 1 installed on the outer wall of the tank body, wherein the output end of the driving member 1 is fixed to the driving shaft, and the driving member 1 is used to drive the driving shaft to rotate. A centrifugal cleaning module is also provided on the separation intelligent controller, and the output end of the centrifugal cleaning module is respectively connected to the driving member 1 and the temperature control module signal.

[0014] As a further improvement of the present application, a piston plate is vertically slidably connected to the bottom of the inner cavity of the drive shell, the top surface of the piston plate is abutted against a pressure ring fixed to the main shaft, a pressure sensor is installed in the bottom cavity of the piston plate, and the input end of the centrifugal cleaning module is connected to the pressure sensor signal.

[0015] As another improvement of the present application, a sliding ring is provided under the outer ring of each umbrella-board separator, a guide rod plugged into the outer ring of the umbrella-board separator is fixed on the top surface of the sliding ring, and a plurality of support plates fixed to the inner wall of the tank body are abutted on the bottom surface of the umbrella-board separator.

[0016] As another improvement supplement of the present application, a driving member 2 is installed on the side of the detection shell close to the support plate, and a switching rod is installed on the output end of the driving member 2. The driving member 2 is used to drive the switching rod to rotate, a temperature transfer head is installed on one side of the switching rod, and a temperature insulation head is installed on the other side of the switching rod. The detection shell is located above the switching rod and is provided with a heat transfer rod abutting the heating end of the thermoelectric cooling plate, and the detection shell is located below the switching rod and is provided with a cold transfer rod abutting the cooling end of the thermoelectric cooling plate. The temperature transfer head is controlled to alternately abut against the heat transfer rod and the cold transfer rod by rotating the switching rod, and the temperature insulation head located on the other side of the switching rod alternately abuts against the cold transfer rod and the heat transfer rod.

[0017] As another improvement supplement of the present application, a temperature-conducting sleeve abutting against the end of the switching rod is sleeved on the main shaft, and the output end of the temperature control module is connected to the second signal of the driving member.

[0018] As another improvement of the present application, one of the umbrella plate separators is arranged below the dispersion baffle, the adjustable separator is arranged above the dispersion baffle, and a wire mesh debubbler is arranged at the top of the inner cavity of the tank body corresponding to the pressure sensor.

[0019] To summarize, by setting an adjustable separator, in the initial state, there is a height difference between the fixed umbrella plate and the dynamic umbrella plate, and the mixed gas flows normally along the gap between the two, thereby improving the gas circulation efficiency. When it is judged that the mixed gas contains more water, the mixed gas is separated by the umbrella structure composed of the fixed umbrella plate and the dynamic umbrella plate, thereby improving the separation effect of the mixed gas. By setting a separation intelligent controller, the water content of the mixed gas is judged by condensing water vapor in the mixed gas on the collection grid plate, and the separation effect is intelligently adjusted according to the water content in the mixed gas, thereby improving the separation efficiency while ensuring the separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall schematic diagram of the first and second implementation modes of the present application;

[0021] Figure 2 It is a cross-sectional schematic diagram of the first and second embodiments of the present application;

[0022] Figure 3 This is a cross-sectional schematic diagram from another perspective of the first and second embodiments of the present application;

[0023] Figure 4 This is a control principle diagram of a separate intelligent controller according to the first embodiment of the present application;

[0024] Figure 5 Schematic cross-sectional view of the detection housing of the first and second embodiments of the present application;

[0025] Figure 6 This is a schematic diagram of the structure of the adjustable separator according to the first and second embodiments of the present application;

[0026] Figure 7 Schematic diagram of the positions of the switching rod and the thermal conductive sleeve of the first and second embodiments of the present application;

[0027] Figure 8 Schematic cross-sectional view of the drive housing of the first and second embodiments of the present application;

[0028] Fig. 9 This is a control principle diagram of a separate intelligent controller according to the second embodiment of the present application.

[0029] Description of the numbers in the figure:

[0030] 1. Tank body; 2. Input pipe; 3. Output pipe; 4. Driving component one; 5. Separation intelligent controller; 6. Drain pipe; 7. Dispersion baffle; 8. Detection shell; 9. Collection grid; 10. Umbrella plate separator; 11. Sliding ring; 12. Adjustable separator; 13. Driving shell; 14. Spindle; 15. Silk screen debubbler; 16. Temperature conducting rod; 17. Support plate; 18. Temperature conducting sleeve; 19. Driving shaft; 20. Switching rod; 21. Heat transfer rod; 22. Cold transfer rod; 23. Temperature transfer head; 24. Insulation head; 25. Fixed umbrella plate; 26. Moving umbrella plate; 27. Telescopic part; 28. Pressure ring; 29. ​​Piston plate; 30. Pressure sensor; 31. Temperature conducting plate; 32. Thermoelectric cooling sheet; 33. Driving component two; 34. Distance sensor. DETAILED DESCRIPTION

[0031] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0032] The first implementation method:

[0033] Figure 1-Figure 6A gas-liquid separation device for natural gas at a wellhead is shown, comprising a tank body 1, a detection mechanism, an adjustable separator 12 and a separation intelligent controller 5. An input pipe 2 is connected to the middle of the tank body 1, a sewage pipe 6 is connected to the bottom of the tank body 1, and an output pipe 3 is connected to the top of the tank body 1. A dispersion baffle 7 is fixedly connected to the inner wall of the tank body 1 corresponding to the input pipe 2. A vertical main shaft 14 is arranged in the middle of the inner cavity of the tank body 1, and a plurality of umbrella plate separators 10 are fixed on the main shaft 14 along its axial direction. The natural gas mixture is input into the tank body 1 through the input pipe 2, and the gaseous natural gas separated by gas and liquid is discharged through the output pipe 3. The separated impurities are discharged through the drain pipe 6 at the bottom. After the mixed gas enters the tank body 1, it first collides with the dispersion baffle 7 to disperse it, and the liquid water is initially separated. The mixed gas after the collision goes downward and contacts the umbrella plate separator 10, and passes through the multiple layers of umbrella plate separators 10 in sequence. By colliding with the umbrella plate separator 10, the liquid water in the mixed gas is intercepted and flows down along the surface of the umbrella plate separator 10 and is collected at the bottom of the tank body 1. When the mixed gas collides with the umbrella plate separator 10, the water vapor contained in the gas will be dispersed, so that the water vapor in the mixed gas can be better separated, thereby improving the separation efficiency of natural gas.

[0034] It is worth mentioning that see Figure 3 and Figure 5 The detection mechanism includes a detection shell 8 installed on the dispersion baffle 7, a thermoelectric cooling sheet 32 ​​installed in the inner cavity of the detection shell 8, and a collection grid plate 9 corresponding to the input pipe 2. The top of the collection grid plate 9 is plugged into the detection shell 8. The lower end of the inner cavity of the detection shell 8 is vertically slidably connected with a temperature conducting plate 31 fixed to the end of the collection grid plate 9. The cooling end of the thermoelectric cooling sheet 32 ​​is arranged toward the temperature conducting plate 31. When the thermoelectric cooling sheet 32 ​​is working, one end of it cools and the other end heats. The temperature conducting plate 31 cools and transfers the low temperature to the temperature conducting plate 31 and then to the collection grid plate 9. When the mixed gas enters the tank body 1 through the input pipe 2, it will contact the collection grid plate 9. The low-temperature collection grid plate 9 will make the mixed gas The water vapor in the mixed gas condenses on its surface, and gradually increases the weight of the collection grid plate 9, and drives the heat conduction plate 31 to move downward synchronously. A reset elastic member is installed between the bottom of the heat conduction plate 31 and the inner cavity of the detection shell 8. A distance sensor 34 is installed at the bottom of the inner cavity of the detection shell 8. The position of the heat conduction plate 31 is detected by the distance sensor 34, which is convenient for judging the weight of the condensed water on the collection grid plate 9. The cooling end of the thermoelectric cooling plate 32 is connected to the main shaft 14 through the cooling component, and the low temperature on the thermoelectric cooling plate 32 is further transferred to the main shaft 14, and then transferred to the umbrella plate separator 10 through the main shaft 14, so that the water vapor in the mixed gas condenses on the umbrella plate separator 10, thereby improving the separation effect.

[0035] Also, see Figure 6The adjustable separator 12 is provided with a plurality of adjustable separators 12, which include a fixed umbrella plate 25 fixed to the main shaft 14, a dynamic umbrella plate 26 slidably sleeved with the main shaft 14 through a spline, and a telescopic member 27 installed with the main shaft 14. The output end of the telescopic member 27 is connected to the dynamic umbrella plate 26. The dynamic umbrella plate 26 and the fixed umbrella plate 25 form a complete umbrella structure. In the initial state, there is a height difference between the fixed umbrella plate 25 and the dynamic umbrella plate 26, and the mixed gas flows normally along the gap between the two. When it is judged that the water content in the mixed gas is high , the movable umbrella plate 26 can be pushed toward the fixed umbrella plate 25 by controlling the telescopic member 27 to work, so that the fixed umbrella plate 25 and the movable umbrella plate 26 are combined into a structure similar to the umbrella plate separator 10, and the mixed gas is separated by the umbrella structure composed of the fixed umbrella plate 25 and the movable umbrella plate 26, thereby improving the separation effect of the mixed gas, and when the water content of the mixed gas is low, by controlling the separation of the movable umbrella plate 26 and the fixed umbrella plate 25, the mixed gas flows through the gap between the two, thereby improving the gas circulation efficiency and the separation efficiency.

[0036] In the present embodiment, the separation intelligent controller 5 is arranged on one side of the tank body 1, and a water detection module, a temperature control module, and a separation control module are arranged on the separation intelligent controller 5. The input end of the water detection module is respectively connected to the temperature control module and the distance sensor 34 for signal connection, the output end of the water detection module is connected to the separation control module for signal connection, the output end of the temperature control module is connected to the thermoelectric cooling sheet 32 ​​for signal connection, and the output end of the separation control module is connected to the telescopic member 27 for signal connection. The mixed gas enters the tank body 1 through the input pipe 2 for separation, the separated natural gas is discharged through the output pipe 3, and the separated impurities are discharged through the drain pipe 6. The temperature control module controls the thermoelectric cooling sheet 32 ​​to work, and the low temperature generated by the thermoelectric cooling sheet 32 ​​is conducted to the collection grid plate 9 through the temperature conduction plate 31. The water vapor in the mixed gas contacts the collection grid plate 9 and condenses on it. When the water content is high, the speed of condensation of water on the collection grid plate 9 increases, and the temperature conduction plate 31 is conducted to the collection grid plate 9 through the distance sensor 34. The distance data of the plate 31 descending is fed back to the water content detection module, and the water content detection module calculates the water content of the mixed gas at the corresponding moment through the change of the distance data, and compares it with the preset water content threshold (the water content detection module is preset with the maximum value of the water content of the mixed gas that the current number of umbrella plate separators 10 can handle). When the water content threshold is exceeded, the water content detection module sends a reinforcement signal to the separation control module, and the separation control module controls the telescopic member 27 to work, and moves the dynamic umbrella plate 26 downward to combine with the fixed umbrella plate 25 to increase the separation effect of the mixed gas; and when the water content detection module determines that the water content drops below the water content threshold, it sends a reset signal to the separation control module, and the separation control module controls the telescopic member 27 to shorten and reset. At this time, the dynamic umbrella plate 26 and the fixed umbrella plate 25 are separated, and the gas flows through the gap between the two. The separation effect can be adjusted in real time according to the water content in the mixed gas, while ensuring the separation effect, the separation efficiency is improved.

[0037] In addition, the bottom of the umbrella plate separator 10 and the fixed umbrella plate 25 are fixed with a temperature conducting rod 16, and the temperature conducting rod 16 is fixed to the main shaft 14. The main shaft 14 and the temperature conducting rod 16 are made of metal. The main shaft 14 and the temperature conducting rod 16 are metals with good thermal conductivity, or the middle of the main shaft 14 is embedded with a metal core with good thermal conductivity, which improves the temperature transfer effect, and quickly transfers the temperature on the main shaft 14 to the umbrella plate separator 10 and the fixed umbrella plate 25 through the temperature conducting rod 16, so that when the mixed gas collides with it, the water vapor is more effectively removed. Separation, one of the umbrella plate separators 10 is arranged below the dispersion baffle 7. When the mixed gas moves downward through the dispersion baffle 7, it will collide with the umbrella plate separator 10 at the bottom, further increasing the separation effect. The adjustable separator 12 is arranged above the dispersion baffle 7. A wire mesh debubbler 15 is arranged at the top of the inner cavity of the tank body 1 corresponding to the pressure sensor 30. The gas after multiple separations passes through the wire mesh debubbler 15 and is discharged. The wire mesh debubbler 15 condenses finer water droplets or water vapor to improve the separation effect.

[0038] The second implementation method:

[0039] Figure 7-Figure 9 A wellhead natural gas gas-liquid separation device is shown, which is different from the first embodiment in that if the water and impurities condensed on the umbrella plate separator 10, the fixed umbrella plate 25 and the moving umbrella plate 26 are not cleaned in time, they will gradually adhere and be difficult to clean, and the separation effect will be reduced. A centrifugal mechanism is installed on the top of the main shaft 14, and the centrifugal mechanism includes a drive housing 13 sleeved on the top of the main shaft 14 and fixed to the inner wall of the tank body 1, a drive shaft 19 linked to the top of the main shaft 14 through a gear set, a drive member 4 installed on the outer wall of the tank body 1, and an output of the drive member 4. The end is fixed to the driving shaft 19, and the driving member 4 is used to drive the driving shaft 19 to rotate. The driving member 4 is preferably an electric motor or a pneumatic motor. A centrifugal cleaning module is also provided on the separation intelligent controller 5. The output ends of the centrifugal cleaning module are respectively connected with the driving member 4 and the temperature control module signal. The driving member 4 is controlled to work through the centrifugal cleaning module. The driving member 4 drives the main shaft 14 to rotate through the driving shaft 19. The main shaft 14 drives multiple umbrella plate separators 10, fixed umbrella plates 25 and moving umbrella plates 26 to rotate, and the impurities are separated by centrifugal force to achieve the purpose of rapid cleaning.

[0040] In addition, a piston plate 29 is vertically slidably connected to the bottom of the inner cavity of the driving housing 13, and a pressure ring 28 fixed to the main shaft 14 is abutted on the top surface of the piston plate 29. A pressure sensor 30 is installed in the bottom cavity of the piston plate 29. The input end of the centrifugal cleaning module is connected to the pressure sensor 30 signal. When the impurities attached to the umbrella plate separator 10, the fixed umbrella plate 25 and the moving umbrella plate 26 gradually increase, the main shaft 14 will be driven to move downward. The downward moving main shaft 14 presses the piston plate 29 downward through the pressure ring 28, and compresses the space at the bottom of the piston plate 29. The sensor 30 can detect the pressure change of the gas at the bottom of the piston plate 29. The centrifugal cleaning module compares the air pressure data fed back by the pressure sensor 30 with the preset air pressure threshold (the centrifugal cleaning module has a preset maximum air pressure value). When it is judged that the air pressure threshold is exceeded, the centrifugal cleaning module will control the drive member 4 to work, thereby driving the main shaft 14 to drive multiple umbrella plate separators 10, fixed umbrella plates 25 and moving umbrella plates 26 to rotate, and use centrifugal force to separate impurities, so as to achieve the purpose of rapid cleaning, realize the purpose of automated and intelligent cleaning, and improve the separation effect.

[0041] Preferably, see Figure 2 and Figure 3 A sliding ring 11 is provided under the outer ring of each umbrella plate separator 10, and a guide rod plugged into the outer ring of the umbrella plate separator 10 is fixed on the top surface of the sliding ring 11. The bottom surface of the umbrella plate separator 10 abuts against a plurality of support plates 17 fixed to the inner wall of the tank body 1. When the main shaft 14 drives the umbrella plate separator 10 to rotate, it will synchronously drive the sliding ring 11 to slide on the top surface of the support plate 17. The sliding ring 11 plays a certain supporting role on the umbrella plate separator 10, so that it is kept in the middle of the tank body 1, and there is a certain gap with the inner wall of the tank body 1, so that the condensed water vapor can quickly drip along the surface of the umbrella plate separator 10 to the bottom of the inner cavity of the tank body 1.

[0042] It is worth mentioning that see Figure 5 , Figure 7 and Figure 8A driving member 23 is installed on one side of the detection shell 8 close to the support plate 17, and a switching rod 20 is installed on the output end of the driving member 23. The driving member 23 is used to drive the switching rod 20 to rotate. The driving member 23 is preferably an electric motor or a pneumatic motor. A temperature transfer head 23 is installed on one side of the switching rod 20, and a temperature insulation head 24 is installed on the other side of the switching rod 20. The detection shell 8 is located above the switching rod 20 and is provided with a heat transfer rod 21 that abuts against the heating end of the thermoelectric cooling plate 32. The detection shell 8 is located below the switching rod 20 and is provided with a cold transfer rod 22 that abuts against the cooling end of the thermoelectric cooling plate 32. The temperature transfer head 23 is controlled to alternately abut against the heat transfer rod 21 and the cold transfer rod 22 by rotating the switching rod 20, and the temperature insulation head 24 located on the other side of the switching rod 20 alternately abuts against the cold transfer rod 22 and the heat transfer rod 21. The temperature transfer head 23 has good Thermal conductivity, the temperature insulation head 24 has good insulation. The driving member 23 controls the deflection of the switching rod 20 to connect the temperature transfer head 23 with the cold transfer rod 22. At this time, the temperature insulation head 24 is connected to the heat transfer rod 21, and the low temperature is transferred to the temperature transfer head 23 through the cold transfer rod 22 through the cooling end of the thermoelectric cooling sheet 32. At the same time, the temperature insulation head 24 insulates and seals the end of the heat transfer rod 21 to keep it warm and reduce temperature loss; conversely, when the driving member 23 controls the switching rod 20 to rotate to connect the temperature transfer head 23 with the heat transfer rod 21, the high temperature at the heating end of the thermoelectric cooling sheet 32 ​​can be transferred to the temperature transfer head 23 through the heat transfer rod 21, thereby switching the temperature transferred by the temperature transfer head 23. A metal core with good heat transfer performance can be set in the middle of the cold transfer rod 22 and the heat transfer rod 21 to reduce temperature loss on its surface while ensuring the thermal conductivity, thereby improving the heat conduction efficiency.

[0043] In addition, a heat conducting sleeve 18 abutting against the end of the switching rod 20 is sleeved on the main shaft 14, and the output end of the temperature control module is connected to the signal of the driving component 2 33. When separating the mixed gas, the temperature control module controls the driving component 2 33 to connect the temperature transfer head 23 with the cold transfer rod 22, and the low temperature is transmitted to the heat conducting sleeve 18 through the temperature transfer head 23, and is transmitted to each umbrella plate separator 10 and the fixed umbrella plate 25 through the main shaft 14, thereby improving its separation effect on the mixed gas; when centrifugal cleaning is required, the centrifugal cleaning module sends a cleaning signal to the temperature control module, and the temperature control module controls the driving component 2 33 to connect the temperature transfer head 23 with the heat transfer rod 21, and transfers the high temperature to the main shaft 14, and to the umbrella plate separator 10 and the fixed umbrella plate 25, so that the impurities attached thereto are better detached, thereby improving the cleaning efficiency of the centrifugal module.

[0044] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A wellhead natural gas gas-liquid separation device, characterized in that: include: A tank body (1), wherein the middle of the tank body (1) is connected to an input pipe (2), the bottom of the tank body (1) is connected to a sewage discharge pipe (6), the top of the tank body (1) is connected to an output pipe (3), a dispersion baffle (7) is fixedly connected to the inner wall of the tank body (1) at a position corresponding to the input pipe (2), a vertical main shaft (14) is provided in the middle of the inner cavity of the tank body (1), and a plurality of umbrella plate separators (10) are fixed on the main shaft (14) along its axial direction; A detection mechanism, the detection mechanism comprising a detection shell (8) mounted on a dispersion baffle (7), a thermoelectric cooling sheet (32) mounted in the inner cavity of the detection shell (8), and a collection grid plate (9) corresponding to the input pipe (2); the top of the collection grid plate (9) is plugged into the detection shell (8); the lower end of the inner cavity of the detection shell (8) is vertically slidably connected to a temperature conducting plate (31) fixed to the end of the collection grid plate (9); the cooling end of the thermoelectric cooling sheet (32) is arranged facing the temperature conducting plate (31); a reset elastic member is installed between the bottom of the temperature conducting plate (31) and the inner cavity of the detection shell (8); a distance sensor (34) is installed at the bottom of the inner cavity of the detection shell (8); and the cooling end of the thermoelectric cooling sheet (32) is connected to the main shaft (14) through a cooling component; An adjustable separator (12), wherein the adjustable separator (12) is provided with a plurality of them, the adjustable separator (12) comprising a fixed umbrella plate (25) fixed to the main shaft (14), a dynamic umbrella plate (26) slidably sleeved with the main shaft (14) via a spline, and a telescopic member (27) mounted on the main shaft (14), the output end of the telescopic member (27) being connected to the dynamic umbrella plate (26), and the dynamic umbrella plate (26) and the fixed umbrella plate (25) forming a complete umbrella structure; A separation intelligent controller (5) is provided on one side of the tank body (1), and is provided with a water detection module, a temperature control module, and a separation control module. The input end of the water detection module is respectively connected to the temperature control module and the distance sensor (34) by signal, the output end of the water detection module is connected to the separation control module by signal, the output end of the temperature control module is connected to the thermoelectric cooling sheet (32) by signal, and the output end of the separation control module is connected to the telescopic member (27) by signal.

2. A wellhead natural gas gas-liquid separation device according to claim 1, characterized in that: A temperature conducting rod (16) is fixed to the bottom of the umbrella plate separator (10) and the fixed umbrella plate (25); the temperature conducting rod (16) is fixed to the main shaft (14); and the main shaft (14) and the temperature conducting rod (16) are both made of metal.

3. A wellhead natural gas gas-liquid separation device according to claim 1, characterized in that: A centrifugal mechanism is installed on the top of the main shaft (14), and the centrifugal mechanism includes a driving housing (13) sleeved on the top of the main shaft (14) and fixed to the inner wall of the tank body (1), a driving shaft (19) linked to the top of the main shaft (14) through a gear set, and a driving member (4) installed on the outer wall of the tank body (1), the output end of the driving member (4) is fixed to the driving shaft (19), and the driving member (4) is used to drive the driving shaft (19) to rotate. A centrifugal cleaning module is also provided on the separation intelligent controller (5), and the output end of the centrifugal cleaning module is respectively connected to the driving member (4) and the temperature control module signal.

4. A wellhead natural gas gas-liquid separation device according to claim 3, characterized in that: A piston plate (29) is vertically slidably connected to the bottom of the inner cavity of the drive housing (13); the top surface of the piston plate (29) abuts against a pressure ring (28) fixed to the main shaft (14); a pressure sensor (30) is installed in the bottom cavity of the piston plate (29); and the input end of the centrifugal cleaning module is signal-connected to the pressure sensor (30).

5. A wellhead natural gas gas-liquid separation device according to claim 4, characterized in that: A sliding ring (11) is provided below the outer ring of each umbrella-plate separator (10); a guide rod plugged into the outer ring of the umbrella-plate separator (10) is fixed on the top surface of the sliding ring (11); and a plurality of support plates (17) fixed to the inner wall of the tank body (1) are abutted against the bottom surface of the umbrella-plate separator (10).

6. A wellhead natural gas gas-liquid separation device according to claim 3, characterized in that: A second driving member (33) is installed on one side of the detection housing (8) close to the support plate (17); a switching rod (20) is installed on the output end of the second driving member (33); the second driving member (33) is used to drive the switching rod (20) to rotate; a temperature transfer head (23) is installed on one side of the switching rod (20); a temperature insulation head (24) is installed on the other side of the switching rod (20); and a thermoelectric cooling plate is provided on the detection housing (8) above the switching rod (20). The detection housing (8) is located below the switching rod (20) and is provided with a cold transfer rod (22) that abuts against the cooling end of the thermoelectric cooling plate (32); the switching rod (20) is rotated to control the temperature transfer head (23) to alternately abut against the heat transfer rod (21) and the cold transfer rod (22); and the temperature insulation head (24) located on the other side of the switching rod (20) to alternately abut against the cold transfer rod (22) and the heat transfer rod (21).

7. A wellhead natural gas gas-liquid separation device according to claim 6, characterized in that: The main shaft (14) is sleeved with a temperature-conducting sleeve (18) that abuts against the end of the switching rod (20), and the output end of the temperature control module is connected to the second driving member (33) by signal.

8. The wellhead natural gas gas-liquid separation device according to claim 1, characterized in that: One of the umbrella plate separators (10) is arranged below the dispersion baffle (7), the adjustable separator (12) is arranged above the dispersion baffle (7), and a wire mesh debubbler (15) is arranged at the top of the inner cavity of the tank body (1) corresponding to the pressure sensor (30).

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