Unpowered desanding, dewatering and dealkylation metering device for wellhead natural gas

Abstract

The invention discloses an unpowered desanding, dehydration and dealkylation metering device for wellhead natural gas, and relates to the technical field of natural gas extraction. According to the wellhead natural gas unpowered desanding, dewatering and dealkylation metering device, through the design of a composite mechanism, natural gas enters the rotary drum from the feeding pipeline, the first motor controls the rotating shaft to enable the rotary drum to rotate, so that the effect of centrifugally separating materials is achieved, the rotary drum adopts the inclined design, and the bottom of the inner wall adopts a protruding structure; the guide block guides the materials to flow and improves the flowing effect, the rotating mechanism stirs the ball assembly when the rotary drum rotates, so that the material separation effect is achieved, the ball assembly collides with the materials, the effect of smashing solid particles is achieved, impurity adsorption is reduced, and the material separation efficiency is improved. And an absorbent enters the interior of the treatment mechanism from the adding pipe to absorb hydrocarbon gas of the natural gas, so that the dealkylation effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of natural gas exploitation, in particular to a wellhead natural gas unpowered desanding, dehydrating and dehydrocarboning metering device. Background Art

[0002] Wellhead natural gas refers to unprocessed natural gas directly extracted from underground natural gas wells. Metering devices are equipment used to measure and record various physical quantities. First of all, natural gas, like crude oil, is often a storage system with bottom water or edge water. With the process of natural gas extraction, the elastic energy of the water body will drive water into the gas reservoir along the high permeability zone. In this case, due to the hydrophilicity of the rock itself and the effect of capillary pressure, the invasion of water does not effectively displace the gas, but closes the unexpelled gas in the cracks, holes or voids, forming a dead gas zone. This part of the high-pressure gas trapped in the water invasion zone can be as high as 30% to 50% of the rock pore volume, which greatly reduces the final recovery rate of the gas reservoir.

[0003] In the process of natural gas extraction, there are many impurities, seepage water and hydrocarbon gases inside the material, which need to be desanded, dehydrated and dehydrogenated before subsequent use. Therefore, a new design was made to address this situation. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wellhead natural gas unpowered desanding, dehydration and dehydrocarbon metering device, comprising: A composite mechanism for separating natural gas at a wellhead; a processing mechanism for removing sand from wellhead natural gas; A frame base, the frame base is used to support the processing mechanism; The bottom of the composite mechanism is fixedly connected to the top of the processing mechanism, and the outer side of the processing mechanism is fixedly connected to the top of the frame base; The composite mechanism includes a composite top cover, the bottom of the composite top cover is fixedly connected to the top of the processing mechanism, the top of the composite top cover is fixedly connected to a first motor, the output end of the bottom of the first motor is fixedly connected to a rotating shaft, the side of the rotating shaft away from the first motor is fixedly connected to a drum, the natural gas material enters the drum from the feed pipe, the first motor controls the rotating shaft to rotate the drum, so as to achieve the effect of centrifugal separation of materials, a transverse incision is opened at the bottom of the outer side of the drum, the drum adopts an inclined design, and the bottom of the inner wall adopts a convex structure to increase the fluidity of the rotation separation of the material and reduce the material residue, and the bottom of the inner wall of the drum is fixedly connected to a guide block, which guides the flow of the material to improve the flow efficiency The rotating mechanism is fixedly connected to the side of the rotating shaft outside close to the rotating drum. When the rotating drum rotates, the rotating mechanism moves the ball assembly, and the separation effect of the material is accelerated by the rotation of the rotating mechanism. The inside of the rotating drum is provided with a ball assembly, and the material is collided by the ball assembly, so as to achieve the effect of crushing solid particles, reduce impurity adsorption, and avoid blockage. The side of the top of the composite top cover close to the first motor is fixedly connected to the feed pipe, and the side of the top of the composite top cover away from the feed pipe is respectively fixedly connected to the outlet pipe and the addition pipe. The absorbent enters into the interior of the processing mechanism from the addition pipe and absorbs the hydrocarbon gas in the natural gas, so as to achieve the effect of dehydrogenation. The natural gas is output outward from the outlet pipe, which is convenient for subsequent processing or metering.

[0005] Preferably, the rotating mechanism includes a connecting block, the outer side of the connecting block is fixedly connected to a cylindrical shell, the inner side of the cylindrical shell is provided with a spring bar, the spring bar supports the connecting rod, and the spring structure has a shock-absorbing and buffering effect, thereby achieving the effect of maintaining structural stability and improving rotation efficiency; the inner wall of the cylindrical shell is slidably connected to a connecting rod, and the outer side of the connecting rod away from the spring bar is fixedly connected to a paddle board, when the rotating shaft drives the paddle board to rotate and contact with the material, it is easily collided with material particles, causing the structure to shake when the component is operating, affecting the operating efficiency, and colliding with the material through the paddle board, thereby increasing the separation speed of the material and improving the operating speed.

[0006] Preferably, a plate surface cutout is opened in the middle of the outer side of the paddle plate, and the plate surface cutout is opened to achieve the effect of reducing rotational resistance and reducing component wear. Block surface grooves are opened on both sides of the outer side of the paddle plate, and the block surface grooves are opened to increase the chip removal effect, reduce impurity adsorption, and avoid excessive adsorption that affects the rotation effect. Secondly, the grooves increase the contact area and improve the separation effect of the material.

[0007] Preferably, the ball assembly includes a spherical shell, and the paddle blade drives the spherical shell to rotate when it rotates, so that the impact block collides with the material particles, thereby achieving the effect of crushing the solid particles and preventing the separation port from being blocked by excessive particles, thereby affecting the separation efficiency. A built-in groove is provided inside the spherical shell, and a connecting block is fixedly connected to the inner wall of the built-in groove. A spring block is provided on the outer side of the connecting block, and the spring block has a shock-absorbing and buffering effect on the impact block, thereby achieving the effect of reducing component damage and extending the service life of the equipment. The impact block is fixedly connected to the side of the outside of the connecting block away from the spring block, and an arc-shaped groove is provided on the outer side of the spherical shell. By providing the arc-shaped groove and grooving, the pressure change is improved and the stability of the structure is improved.

[0008] Preferably, the processing mechanism includes a processing shell, a fixed bracket is fixedly connected to the inner side of the processing shell, a filter plate is fixedly connected to the edge of the top of the fixed bracket, and a liquid outlet pipe is fixedly connected to the side of the outside of the processing shell close to the filter plate. The natural gas material enters the processing mechanism from the composite mechanism, and is centrifugally separated by the rotation of the drum, so that the material impacts the filter plate, and the material particles adhere to the surface of the filter plate, thereby achieving the effect of sand removal and separation, and the liquid part flows through the filter plate to the middle of the filter plate and the processing shell, and is finally discharged from the liquid outlet pipe, thereby achieving the effect of dehydration.

[0009] Preferably, the inner side of the fixed bracket is rotatably connected to a rotating column, and the outer side of the rotating column close to the filter plate is fixedly connected to a friction mechanism. The second motor controls the rotating column to drive the friction mechanism to rotate, and scrapes the surface of the filter plate, so as to clean the surface impurities and avoid excessive impurities affecting the filtering effect. The bottom of the rotating column is fixedly connected to the second motor, and the side of the fixed bracket close to the second motor is fixedly connected to a protective shell. The protective shell wraps the second motor to protect it, reduce the pollution of impurities to the equipment, and extend the service life of the equipment. The bottom of the processing shell is fixedly connected to an output mechanism.

[0010] Preferably, the friction mechanism includes an annular block, the inner side of the annular block is fixedly connected to the outer side of the rotating column, the outer side of the annular block is fixedly connected with a telescopic tube, the distance between the scraper and the filter plate is controlled by the telescopic tube, so as to enhance the fitting effect, the outer side of the telescopic tube away from the annular block is fixedly connected with a scraper, the rotating column drives the scraper to scrape, thereby rubbing and cleaning the inner wall of the component, cleaning the surface impurities, and maintaining the filtering effect of the component, a square groove is provided on one side of the outer side of the scraper, by providing the square groove, the contact area is increased by the groove, the friction performance is enhanced, the cleaning effect is improved, a certain heat dissipation effect is achieved, and friction overheating is prevented from affecting the structural performance, and the outer side of the scraper away from the square groove is fixedly connected with a wiping mechanism.

[0011] Preferably, the wiping mechanism includes a support frame, one side of the outside of the support frame is fixedly connected to one side of the scraper, and a connecting bracket is fixedly connected to the side of the support frame away from the scraper. The outside of the connecting bracket is away from the friction column, and the friction column moves with the scraper. After the scraper cleans the surface of the component, the surface is wiped by the friction column to further reduce impurities, improve the cleaning effect, and reduce residual impurities. An annular groove is provided on the outside of the friction column. By providing the annular groove, the friction effect is increased by grooving, and the wear resistance effect is improved. A spring rod is fixedly connected between the connecting bracket and the opposite surface of the support frame, and the friction column is supported by the spring rod, so as to achieve the effect of shock absorption and buffering, reduce external impact, and improve the stability of the equipment during operation.

[0012] Preferably, the output mechanism includes an output housing, a receiving block is fixedly connected to one side of the output housing, an electric push rod is fixedly connected to the side of the receiving block close to the output housing, a closing block is fixedly connected to the side of the electric push rod away from the receiving block, and a beveled notch is provided on the side of the closing block close to the processing housing. The closing block is connected to the electric push rod to control the closing of the closing block, thereby controlling the material to descend, and keeping the device in a closed state when closing. The beveled notch is provided to improve the flow of impurities, avoid impurities remaining inside the device when flowing downward, prevent pollution inside the device, and extend the service life of the device.

[0013] The present invention provides a wellhead natural gas unpowered sand removal, dehydration and dehydrocarbon metering device, which has the following beneficial effects: 1. The wellhead natural gas non-powered sand removal, dehydration and dehydrogenation metering device is designed with a composite mechanism. The natural gas material enters the drum from the feed pipe. The first motor controls the rotating shaft to rotate the drum to achieve the effect of centrifugal separation of materials. The drum adopts an inclined design and a convex structure at the bottom of the inner wall to increase the fluidity of the material rotation separation and reduce material residue. The guide block guides the flow of the material to improve the flow effect. When the drum rotates, the rotating mechanism moves the ball assembly to accelerate the separation effect of the material through the rotation of the rotating mechanism. The material is collided with the ball assembly to achieve the effect of crushing solid particles, reducing impurity adsorption and avoiding blockage. The absorbent enters the interior of the processing mechanism from the addition pipe and absorbs the hydrocarbon gas inside the natural gas to achieve the effect of dehydrogenation. Finally, the natural gas is output from the outlet pipe to the outside for subsequent processing or metering.

[0014] 2. The wellhead natural gas non-powered sand removal, dehydration and dehydrocarbon metering device is designed with a rotating mechanism. When the rotating shaft drives the paddle to rotate and contact with the material, it is easily collided with the material particles, causing the structure to shake when the component is operating, affecting the operating efficiency. The spring bar supports the connecting rod and has a shock-absorbing and buffering effect through the spring structure, thereby maintaining the structural stability and improving the rotation efficiency. The paddle is used to collide with the material to increase the separation speed of the material and the operating speed. By opening the plate surface incision, the rotation resistance is reduced and the wear of the components is reduced. By opening the block surface grooves, the chip removal effect is increased through the grooving, the adsorption of impurities is reduced, and excessive adsorption is avoided to affect the rotation effect. Secondly, the grooving increases the contact area and improves the separation effect of the material.

[0015] 3. The wellhead natural gas unpowered sand removal, dehydration and dehydrocarbon metering device adopts the ball component design. When the paddle rotates, it drives the spherical shell to rotate, so that the impact block collides with the material particles, so as to achieve the effect of crushing the solid particles and avoid the particles being too large to block the separation port and affect the separation efficiency. The spring block has a shock-absorbing and buffering effect on the impact block, so as to reduce the damage of parts and extend the service life of the equipment. By opening the arc groove, the pressure change is improved through the grooving and the stability of the structure is improved.

[0016] 4. The wellhead natural gas non-powered sand removal, dehydration and dehydrocarbon metering device is designed through the processing mechanism. The natural gas material enters the processing mechanism from the composite mechanism and is centrifugally separated by the rotation of the drum, so that the material impacts the filter plate. The material particles adhere to the surface of the filter plate to achieve the effect of sand removal and separation. The liquid part flows through the filter plate to the middle of the filter plate and the processing shell, and is finally discharged from the liquid outlet pipe to achieve the effect of dehydration. The second motor controls the rotating column to drive the friction mechanism to rotate and scrape the surface of the filter plate to clean the surface impurities and avoid excessive impurities affecting the filtering effect. The protective shell wraps the second motor to play a protective role, reduce the pollution of impurities to the equipment, and extend the service life of the equipment.

[0017] 5. The wellhead natural gas non-powered sand removal, dehydration and dehydrocarbon metering device is designed with a friction mechanism. The distance between the scraper and the filter plate is controlled by a telescopic tube to enhance the fitting effect. The scraper is then driven to scrape by the rotation of the rotating column, thereby frictionally cleaning the inner wall of the component to clean surface impurities and maintain the filtering effect of the component. By opening square grooves and increasing the contact area through grooving, the friction performance is enhanced, the cleaning effect is improved, and a certain heat dissipation effect is achieved to prevent friction overheating from affecting the structural performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of the metering device for unpowered desanding, dehydration and dehydrocarbon removal of natural gas at the wellhead of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the metering device for unpowered desanding, dehydration and dehydrocarbon removal of natural gas at the wellhead of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the composite mechanism of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating mechanism of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the ball assembly of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the processing mechanism of the present invention; Figure 7 It is a schematic diagram of the friction mechanism structure of the present invention; Figure 8 It is a schematic diagram of the structure of the wiping mechanism of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the output mechanism of the present invention.

[0019] In the figure: 1. composite mechanism; 2. processing mechanism; 3. frame base; 101. composite top cover; 102. first motor; 103. rotating shaft; 104. rotating drum; 105. transverse incision; 106. guide block; 107. rotating mechanism; 108. ball assembly; 109. feeding pipe; 110. air outlet pipe; 111. adding pipe; 1071. connecting block; 1072. cylindrical shell; 1073. spring bar; 1074. connecting rod; 1075. paddle board; 1076. block surface groove; 1077. plate surface incision; 1081. spherical shell; 1082. built-in groove; 1083. connecting block; 1084. spring block ; 1085, impact block; 1086, arc groove; 21, processing shell; 22, fixed bracket; 23, filter plate; 24, liquid outlet pipe; 25, rotating column; 26, friction mechanism; 27, second motor; 28, protective shell; 29, output mechanism; 261, annular block; 262, telescopic tube; 263, scraper; 264, square groove; 265, wiping mechanism; 2651, support frame; 2652, connecting bracket; 2653, friction column; 2654, annular groove; 2655, spring rod; 291, output shell; 292, receiving block; 293, electric push rod; 294, closing block; 295, bevel notch. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] The first embodiment, as Figures 1 to 3 As shown, the present invention provides a technical solution: a wellhead natural gas unpowered desanding, dehydration and dehydrocarbon metering device, comprising a composite mechanism 1, the composite mechanism 1 is used to separate the wellhead natural gas; A processing mechanism 2, the processing mechanism 2 is used to remove sand from the wellhead natural gas; A frame base 3, the frame base 3 is used to support the processing mechanism 2; The bottom of the composite mechanism 1 is fixedly connected to the top of the processing mechanism 2, and the outer side of the processing mechanism 2 is fixedly connected to the top of the frame base 3; Among them, the composite mechanism 1 includes a composite top cover 101, the bottom of the composite top cover 101 is fixedly connected to the top of the processing mechanism 2, the top of the composite top cover 101 is fixedly connected to the first motor 102, the output end of the bottom of the first motor 102 is fixedly connected to the rotating shaft 103, the side of the rotating shaft 103 outside the first motor 102 is fixedly connected to the rotating drum 104, the bottom of the outer side of the rotating drum 104 is provided with a transverse incision 105, the bottom of the inner wall of the rotating drum 104 is fixedly connected to a guide block 106, the side of the rotating shaft 103 outside the rotating drum 104 is fixedly connected to a rotating mechanism 107, the inside of the rotating drum 104 is provided with a ball assembly 108, the side of the top of the composite top cover 101 close to the first motor 102 is fixedly connected to a feed pipe 109, and the side of the top of the composite top cover 101 away from the feed pipe 109 is respectively fixedly connected to an exhaust pipe 110 and an addition pipe 111. The natural gas material enters the drum 104 from the feed pipe 109, and the first motor 102 controls the rotating shaft 103 to rotate the drum 104 to achieve the effect of centrifugal separation of the material. The drum 104 adopts an inclined design, and the bottom of the inner wall adopts a convex structure to increase the fluidity of the material rotation separation and reduce the material residue. The guide block 106 guides the flow of the material to improve the flow effect. When the drum 104 rotates, the rotating mechanism 107 moves the ball assembly 108, and the rotation of the rotating mechanism 107 accelerates the separation effect of the material. The ball assembly 108 collides with the material to achieve the effect of crushing solid particles, reducing impurity adsorption and avoiding blockage. The absorbent enters the interior of the processing mechanism 2 from the addition pipe 111, and absorbs the hydrocarbon gas inside the natural gas to achieve the effect of dehydrogenation. Finally, the natural gas is output from the outlet pipe 110 to facilitate subsequent processing or metering.

[0022] The second embodiment is based on the first embodiment. Figures 4 to 5 As shown, the rotating mechanism 107 includes a connecting block 1071, a cylindrical housing 1072 is fixedly connected to the outer side of the connecting block 1071, a spring bar 1073 is arranged on the inner side of the cylindrical housing 1072, a connecting rod 1074 is slidably connected to the inner wall of the cylindrical housing 1072, and a paddle 1075 is fixedly connected to the outer side of the connecting rod 1074 away from the spring bar 1073. When the rotating shaft 103 drives the paddle 1075 to rotate and contact with the material, it is easy to be collided by the material particles, resulting in structural shaking during the operation of the component, affecting the operation efficiency. The spring bar 1073 supports the connecting rod 1074, and plays a shock-absorbing and buffering effect through the spring structure, thereby achieving the effect of maintaining structural stability and improving the rotation efficiency. The paddle 1075 collides with the material, thereby increasing the separation speed of the material and the operation speed.

[0023] A plate cutout 1077 is provided in the middle of the outer side of the paddle plate 1075, and block grooves 1076 are provided on both sides of the outer side of the paddle plate 1075. The plate cutout 1077 is provided to reduce the rotation resistance and reduce the wear of the parts. The block groove 1076 is provided to increase the chip removal effect through the grooves, reduce the adsorption of impurities, and avoid excessive adsorption that affects the rotation effect. Secondly, the grooves increase the contact area and improve the separation effect of the materials.

[0024] The ball assembly 108 includes a spherical shell 1081, a built-in groove 1082 is provided inside the spherical shell 1081, a connection block 1083 is fixedly connected to the inner wall of the built-in groove 1082, a spring block 1084 is sleeved on the outer side of the connection block 1083, a collision block 1085 is fixedly connected to the outer side of the connection block 1083 away from the spring block 1084, and an arc surface groove 1086 is provided on the outer side of the spherical shell 1081. When the paddle 1075 rotates, it drives the spherical shell 1081 to rotate, so that the collision block 1085 collides with the material particles, thereby achieving the effect of crushing the solid particles, avoiding the particles being too large to block the separation port and affect the separation efficiency, and the spring block 1084 has a shock-absorbing and buffering effect on the collision block 1085, thereby reducing the damage of components and extending the service life of the equipment. By providing the arc surface groove 1086, the pressure change is improved by grooving, and the stability of the structure is improved.

[0025] The third embodiment is based on the first and second embodiments. Figures 6 to 9 As shown, the processing mechanism 2 includes a processing shell 21, a fixed bracket 22 is fixedly connected to the inner side of the processing shell 21, a filter plate 23 is fixedly connected to the edge of the top of the fixed bracket 22, and a liquid outlet pipe 24 is fixedly connected to the side of the outside of the processing shell 21 close to the filter plate 23. The natural gas material enters the processing mechanism 2 from the composite mechanism 1, and is centrifugally separated by the rotation of the drum 104, so that the material impacts the filter plate 23, and the material particles adhere to the surface of the filter plate 23, thereby achieving the effect of sand removal and separation, and the liquid part flows through the filter plate 23 to the middle of the filter plate 23 and the processing shell 21, and finally discharged from the liquid outlet pipe 24, thereby achieving the effect of dehydration.

[0026] The inner side of the fixed bracket 22 is rotatably connected with a rotating column 25, the outer side of the rotating column 25 close to the filter plate 23 is fixedly connected with a friction mechanism 26, the bottom of the rotating column 25 is fixedly connected with a second motor 27, the side of the fixed bracket 22 close to the second motor 27 is fixedly connected with a protective shell 28, and the bottom of the processing shell 21 is fixedly connected with an output mechanism 29. The second motor 27 controls the rotating column 25 to drive the friction mechanism 26 to rotate, and scrapes the surface of the filter plate 23, so as to clean the surface impurities and avoid excessive impurities affecting the filtering effect. The protective shell 28 wraps the second motor 27, plays a protective role, reduces the pollution of impurities to the equipment, and prolongs the service life of the equipment.

[0027] The friction mechanism 26 includes an annular block 261, the inner side of the annular block 261 is fixedly connected to the outer side of the rotating column 25, a telescopic tube 262 is fixedly connected to the outer side of the annular block 261, a scraper 263 is fixedly connected to the outer side of the telescopic tube 262 away from the annular block 261, a square groove 264 is provided on the outer side of the scraper 263, and a wiping mechanism 265 is fixedly connected to the outer side of the scraper 263 away from the square groove 264. The distance between the scraper 263 and the filter plate 23 is controlled by the telescopic tube 262 to enhance the fitting effect, and then the rotating column 25 rotates to drive the scraper 263 to scrape, thereby frictionally cleaning the inner wall of the component, cleaning the surface impurities, and maintaining the filtering effect of the component. By providing the square groove 264, the contact area is increased by grooving, the friction performance is enhanced, the cleaning effect is improved, and a certain heat dissipation effect is achieved to prevent friction overheating from affecting the structural performance.

[0028] The wiping mechanism 265 includes a support frame 2651, one side of the support frame 2651 is fixedly connected to one side of the scraper 263, a connecting bracket 2652 is fixedly connected to the side of the support frame 2651 away from the scraper 263, the outside of the connecting bracket 2652 is away from the friction column 2653, an annular groove 2654 is provided on the outside of the friction column 2653, and a spring rod 2655 is fixedly connected between the opposite surfaces of the connecting bracket 2652 and the support frame 2651. The friction column 2653 moves with the scraper 263, and after the scraper 263 cleans the surface of the component, the friction column 2653 wipes the surface, further reducing impurities, improving the cleaning effect, and reducing residual impurities. By opening the annular groove 2654, the friction effect is increased by grooving, and the wear resistance effect is improved. The friction column 2653 is supported by the spring rod 2655, so as to achieve the effect of shock absorption and buffering, reduce external impact, and improve the stability of the equipment during operation.

[0029] The output mechanism 29 includes an output housing 291, a receiving block 292 is fixedly connected to one side of the output housing 291, an electric push rod 293 is fixedly connected to one side of the receiving block 292 close to the output housing 291, a closing block 294 is fixedly connected to one side of the electric push rod 293 away from the receiving block 292, and a chamfered notch 295 is provided on one side of the closing block 294 close to the processing housing 21. The closing block 294 is connected to the electric push rod 293 to control the closing block 294 to close, thereby controlling the material to descend, and keeping the device in a closed state when closing. By providing the chamfered notch 295, the flow effect of impurities is improved through the slotting, and the impurities are prevented from remaining inside the device when flowing downward, thereby preventing pollution inside the device and extending the service life of the device.

[0030] When in use, the composite mechanism 1 is arranged on the top of the processing mechanism 2, and the natural gas material enters the inside of the drum 104 from the feed pipe 109 on the top of the composite mechanism 1. The first motor 102 controls the drum 104 to rotate through the rotating shaft 103, so as to achieve the effect of centrifugal separation. A rotating mechanism 107 and a ball assembly 108 are arranged inside the drum 104. The rotating mechanism 107 rotates with the rotating shaft 103, so as to achieve the effect of improving the separation effect by stirring the material. When the rotating mechanism 107 rotates, the ball assembly 108 is moved, and the natural gas material particles are broken by the movement of the ball assembly 108 to prevent the particles from being too large to affect the separation effect. The effect is to prevent blockage. After the natural gas material is centrifugally separated by the drum 104, the material splashes onto the surface of the filter plate 23 inside the processing mechanism 2, and the natural gas material is filtered by the filter plate 23 to separate the particles from the liquid. The particles adhere to the surface of the filter plate 23, and the liquid flows into the space between the filter plate 23 and the processing shell 21, and finally the liquid flows out from the liquid outlet pipe 24 to achieve the dehydration effect. When the composite mechanism 1 processes the natural gas material, the absorbent is added from the top of the addition pipe 111, and the hydrocarbon gas inside the natural gas is absorbed by the absorbent to achieve the dehydrogenation effect. The natural gas flows to the outlet pipe 110 to facilitate subsequent processing.

[0031] After the natural gas material is centrifuged, impurities are precipitated on the surface of the filter plate 23, and then the second motor 27 controls the rotating column 25 to drive the friction mechanism 26 to rotate, and the friction mechanism 26 scrapes the surface of the filter plate 23 to achieve the effect of cleaning impurities, reduce the attachment of impurities on the surface of the component, and prevent excessive accumulation of impurities to affect the filtering effect. By cleaning the surface impurities, the service life of the equipment is extended. After the impurities are cleaned by the friction mechanism 26, they move to the bottom of the processing shell 21 and are discharged outwardly through the output mechanism 29 to achieve the effect of sand removal.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A metering device for unpowered desanding, dehydration and dehydrocarbon removal of natural gas at a wellhead, characterized in that: include: A composite mechanism (1), the composite mechanism (1) being used for separating wellhead natural gas; A processing mechanism (2), the processing mechanism (2) is used to remove sand from wellhead natural gas; A frame base (3), the frame base (3) being used to support the processing mechanism (2); The bottom of the composite mechanism (1) is fixedly connected to the top of the processing mechanism (2), and the outer side of the processing mechanism (2) is fixedly connected to the top of the frame base (3); The composite mechanism (1) comprises a composite top cover (101), the bottom of the composite top cover (101) is fixedly connected to the top of the processing mechanism (2), the top of the composite top cover (101) is fixedly connected to a first motor (102), the output end of the bottom of the first motor (102) is fixedly connected to a rotating shaft (103), the side of the rotating shaft (103) away from the first motor (102) is fixedly connected to a rotating drum (104), the bottom of the outer side of the rotating drum (104) is provided with a transverse cutout (105), and the rotating drum (104) is fixedly connected to the output end of the bottom of the first motor (102). A guide block (106) is fixedly connected to the bottom of the inner wall of the drum (104); a rotating mechanism (107) is fixedly connected to the outer side of the rotating shaft (103) close to the rotating drum (104); a ball assembly (108) is arranged inside the rotating drum (104); a feed pipe (109) is fixedly connected to the top of the composite cover (101) close to the first motor (102); and an air outlet pipe (110) and an addition pipe (111) are respectively fixedly connected to the top of the composite cover (101) away from the feed pipe (109).

2. The unpowered desanding, dehydrating and dehydrocarbonizing metering device for wellhead natural gas according to claim 1 is characterized by: The rotating mechanism (107) comprises a connecting block (1071), the outer side of the connecting block (1071) is fixedly connected to a cylindrical shell (1072), the inner side of the cylindrical shell (1072) is provided with a spring bar (1073), the inner wall of the cylindrical shell (1072) is slidably connected to a connecting rod (1074), and the outer side of the connecting rod (1074) away from the spring bar (1073) is fixedly connected to a paddle board (1075).

3. A wellhead natural gas unpowered desanding, dehydration and dehydrocarbon metering device according to claim 2, characterized in that: A board surface cutout (1077) is provided in the middle of the outer side of the paddle board (1075), and block surface grooves (1076) are provided on both sides of the outer side of the paddle board (1075).

4. The unpowered desanding, dehydrating and dehydrocarbonizing metering device for wellhead natural gas according to claim 1 is characterized by: The ball assembly (108) comprises a spherical shell (1081), the interior of the spherical shell (1081) is provided with a built-in groove (1082), the inner wall of the built-in groove (1082) is fixedly connected to a connecting block (1083), the outer side of the connecting block (1083) is sleeved with a spring block (1084), the outer side of the connecting block (1083) away from the spring block (1084) is fixedly connected to an impact block (1085), and the outer side of the spherical shell (1081) is provided with a curved groove (1086).

5. The unpowered desanding, dehydrating and dehydrocarbonizing metering device for wellhead natural gas according to claim 1 is characterized by: The processing mechanism (2) comprises a processing shell (21), a fixed bracket (22) is fixedly connected to the inner side of the processing shell (21), a filter plate (23) is fixedly connected to the edge of the top of the fixed bracket (22), and a liquid outlet pipe (24) is fixedly connected to the outer side of the processing shell (21) close to the filter plate (23).

6. The unpowered desanding, dehydrating and dehydrocarbonizing metering device for wellhead natural gas according to claim 5 is characterized by: The inner side of the fixed bracket (22) is rotatably connected to a rotating column (25), the outer side of the rotating column (25) close to the filter plate (23) is fixedly connected to a friction mechanism (26), the bottom of the rotating column (25) is fixedly connected to a second motor (27), the side of the fixed bracket (22) close to the second motor (27) is fixedly connected to a protective shell (28), and the bottom of the processing shell (21) is fixedly connected to an output mechanism (29).

7. A wellhead natural gas unpowered desanding, dehydration and dehydrocarbon metering device according to claim 6, characterized in that: The friction mechanism (26) comprises an annular block (261), the inner side of the annular block (261) being fixedly connected to the outer side of the rotating column (25), the outer side of the annular block (261) being fixedly connected to a telescopic tube (262), the outer side of the telescopic tube (262) away from the annular block (261) being fixedly connected to a scraper (263), the outer side of the scraper (263) being provided with a square groove (264), and the outer side of the scraper (263) away from the square groove (264) being fixedly connected to a wiping mechanism (265).

8. The unpowered desanding, dehydrating and dehydrocarbonizing metering device for wellhead natural gas according to claim 7 is characterized by: The wiping mechanism (265) comprises a support frame (2651), one side of the outside of the support frame (2651) is fixedly connected to one side of the scraper (263), a side of the support frame (2651) away from the scraper (263) is fixedly connected to a connecting bracket (2652), the outside of the connecting bracket (2652) is away from the friction column (2653), an annular groove (2654) is provided on the outside of the friction column (2653), and a spring rod (2655) is fixedly connected between the opposite surfaces of the connecting bracket (2652) and the support frame (2651).

9. The unpowered desanding, dehydrating and dehydrocarbonizing metering device for wellhead natural gas according to claim 6 is characterized by: The output mechanism (29) comprises an output housing (291), a receiving block (292) being fixedly connected to one side of the outside of the output housing (291), an electric push rod (293) being fixedly connected to one side of the receiving block (292) close to the output housing (291), a closing block (294) being fixedly connected to one side of the electric push rod (293) away from the receiving block (292), and a chamfered notch (295) being provided on one side of the outside of the closing block (294) close to the processing housing (21).

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