Sealed conveying device for geothermal recharging

Abstract

The utility model relates to the technical field of recharge sealing conveying devices, and discloses a geothermal recharge sealing conveying device which comprises an equipment body and further comprises a control mechanism, a pressurization mechanism and an exhaust structure. The bottom end of the control mechanism is fixedly connected with the top end of the pressurizing mechanism, the side face of the exhaust structure is movably connected with the side face of the pressurizing mechanism, the equipment body comprises a conveying cylinder, the side face of the conveying cylinder is fixedly connected with a water pump, the side face of the conveying cylinder is fixedly connected with a conveying pipe, and the pressurizing mechanism comprises a mounting plate. The top end of the mounting plate is fixedly connected with a hydraulic telescopic rod, the bottom end of the mounting plate is fixedly connected with a pressure spring, and the bottom end of the pressure spring is fixedly connected with a sealing piston; the utility model provides a sealed conveying device for geothermal recharge, which can keep the internal constant pressure of equipment, reduce gas decomposition in underground water and exhaust gas regularly.

Description

Technical Field

[0001] The utility model relates to the technical field of recharging and sealed conveying devices, and more specifically to a geothermal recharging and sealed conveying device. Background Art

[0002] Geothermal energy is the natural heat energy extracted from the earth's crust. As the natural heat energy stored inside the earth and a highly competitive clean and renewable energy source, geothermal energy has the advantages of large reserves, wide distribution, green and low-carbon, strong applicability, good stability, etc. High-temperature geothermal resources will become one of the main forces in the future energy structure adjustment and the development of clean energy. During the use of geothermal energy, underground hot water is pumped to the surface by a water pump and sent into a heat exchange device for heat exchange to take away the heat for reuse, and then the cooled groundwater is recharged back underground. The well water has the opportunity to contact with air. The well water contains various chemical ions, mainly calcium, magnesium, sodium, potassium, iron, aluminum, sulfate, etc. Many chemical ions will undergo oxidation reactions when they encounter oxygen, some generate viscous substances, and some generate precipitates, resulting in blockage of the conveying pipeline. Therefore, sealed conveying is required to prevent the groundwater from contacting with air.

[0003] Deficiencies of the prior art: However, the groundwater is enclosed underground under long-term pressure. Due to long-term mineralization, it contains various gases, mainly carbon dioxide, sulfur dioxide, methane and other gases, and there are also small amounts of hydrogen sulfide, hydrogen chloride and other gases. When the sealed conveying device is used, the well water that has not been fully degassed is directly recharged back underground. Due to the agitation by the submersible pump and the rapid flow in the pipeline, a large amount of gas will be decompressed, which is likely to cause gas-phase blockage and affect the groundwater transportation; at the same time, when the groundwater is used for heat exchange, the temperature changes, and the volume of the groundwater changes due to thermal expansion and contraction. However, to prevent the groundwater from contacting with air, the recharging and conveying device is a sealed structure. The excessive change of the internal pressure of the device is likely to cause damage to the device, and at the same time, the gas in the groundwater is easily decompressed when the pressure changes. Content of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a geothermal recharging and sealed conveying device to solve the problems existing in the above-mentioned background art.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A geothermal reinjection sealing and conveying device, including a device main body, further including: a control mechanism, a pressurizing mechanism, and an exhaust structure. The side inner wall of the device main body is movably connected to the side of the pressurizing mechanism. The bottom end of the control mechanism is fixedly connected to the top end of the pressurizing mechanism. The side of the exhaust structure is movably connected to the side of the pressurizing mechanism. The device main body includes a conveying cylinder. A water pump is fixedly connected to the side of the conveying cylinder. A conveying pipe is fixedly connected to the side of the conveying cylinder. The pressurizing mechanism includes a mounting plate. A hydraulic telescopic rod is fixedly connected to the top end of the mounting plate. The top end of the hydraulic telescopic rod is fixedly connected to the side inner wall of the conveying cylinder. A pressure spring is fixedly connected to the bottom end of the mounting plate. The bottom end of the pressure spring is fixedly connected to a sealing piston. The side of the sealing piston is movably connected to the side inner wall of the conveying cylinder. The control mechanism includes a mounting cylinder. The bottom end of the mounting cylinder is fixedly connected to the top end of the mounting plate. A slider is movably connected to the side inner wall of the mounting cylinder. A connecting rod is fixedly connected to the bottom end of the slider. The bottom end of the connecting rod passes through the bottom end of the mounting plate and is fixedly connected to the top end of the sealing piston. A first control device is fixedly connected to the side of the mounting cylinder. A second control device is fixedly connected to the side of the mounting cylinder.

[0006] Further, a limit pin is fixedly connected to the top end of the sealing piston. A limit hole is provided at the top end of the mounting plate. The side of the limit hole is movably connected to the side of the limit pin.

[0007] Further, a sealing ring is fixedly connected to the side of the sealing piston. The two hydraulic telescopic rods are symmetrically distributed along the center of the mounting plate.

[0008] Further, the first control device includes a mounting block. The side of the mounting block is fixedly connected to the side of the mounting cylinder. A return spring is fixedly connected to the side inner wall of the mounting block. A mounting frame is fixedly connected to the side of the return spring. A buffer spring is fixedly connected to the side inner wall of the mounting block. A first touch switch is fixedly connected to the side of the buffer spring. The structure of the first control device is the same as that of the second control device.

[0009] Further, a roller is movably connected to the side of the mounting frame through a pin. An arc angle is provided on the side of the slider.

[0010] Furthermore, a through hole is provided at the top end of the sealing piston. The exhaust structure includes a mounting rod, a floating device is fixedly connected to the bottom end of the mounting rod, a pressing block is fixedly connected to the top end of the mounting rod, the side surface of the mounting rod is movably connected to the side surface of the through hole, a second touch switch is fixedly connected to the top end of the sealing piston corresponding to the position of the pressing block, a third touch switch is fixedly connected to the bottom end of the sealing piston corresponding to the position of the floating device, an exhaust pipe is fixedly connected to the top end of the sealing piston, and an electromagnetic valve is fixedly connected to the side surface of the exhaust pipe.

[0011] Technical effects and advantages of the present utility model:

[0012] 1. In the present utility model, the used groundwater is sent into the inside of the conveying cylinder by the operation of the water pump. The hydraulic telescopic rod pushes the mounting plate downward to perform extrusion, increasing the pressure inside the conveying cylinder. At this time, the pressure spring contracts, causing the connecting rod to move upward, causing the slider to move upward along the inner wall of the side surface of the mounting cylinder until the slider contacts the first control device. The first control device controls the hydraulic telescopic rod to stop pushing the mounting plate downward and controls the hydraulic telescopic rod to drive the mounting plate upward to separate the slider from the first control device. During the operation, when the pressure inside the conveying cylinder decreases, the pressure spring pushes the sealing piston downward, causing the connecting rod to drive the slider to move downward to contact the second control device. The second control device controls the hydraulic telescopic rod to drive the mounting plate downward to contract the pressure spring until the slider separates from the second control device. Thus, the deformation amount of the pressure spring is controlled within a suitable range, so that the pressure inside the conveying cylinder is maintained at a suitable level, reducing the decompression and discharge of gas in the groundwater into the conveying device, which is beneficial to improving the safety of the equipment.

[0013] 2. In the present utility model, the exhaust structure moves up and down with the sealing piston. Through grooves are provided at the top end of the mounting plate corresponding to the positions of the exhaust pipe and the mounting rod. During use, the floating device floats on the water surface inside the conveying cylinder. As the water level inside the conveying cylinder changes, it drives the mounting rod to move up and down along the through hole. When the gas inside the conveying cylinder increases, the floating device moves upward to contact the third touch switch at the bottom end of the sealing piston. The third touch switch controls the electromagnetic valve on the side of the exhaust pipe to open to discharge the gas inside the conveying cylinder. As the gas inside the conveying cylinder decreases, the floating device approaches the top of the sealing piston, so that the top of the floating device contacts the third touch switch. The third touch switch controls the electromagnetic valve on the side of the exhaust pipe to close and stop exhausting, thus preventing gas from entering the conveying pipeline and pouring into the ground. Description of the drawings

[0014] Figure 1 is the overall sectional structure schematic diagram of the present utility model;

[0015] Figure 2 is the structural schematic diagram of the pressurizing mechanism of the present utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the exhaust structure of the present utility model;

[0017] Figure 4 This is a schematic cross-sectional view of the control mechanism of the present utility model;

[0018] Figure 5 This is a schematic cross-sectional view of the first control device of the present utility model.

[0019] The reference numerals are: 1, equipment main body; 101, conveying cylinder; 102, conveying pipe; 103, water pump; 2, control mechanism; 201, mounting cylinder; 202, connecting rod; 203, first control device; 2031, mounting block; 2032, buffer spring; 2033, roller; 2034, mounting frame; 2035, first touch switch; 2036, return spring; 204, second control device; 205, slider; 206, arc angle; 3, pressurizing mechanism; 301, mounting plate; 302, hydraulic telescopic rod; 303, sealing piston; 304, limit pin; 305, limit hole; 306, pressure spring; 307, sealing ring; 308, through hole; 4, exhaust structure; 401, floating device; 402, exhaust pipe; 403, mounting rod; 404, second touch switch; 405, pressing block; 406, third touch switch. Detailed implementation manners

[0020] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. In addition, the forms of the respective structures described in the following implementation manners are merely examples, and a geothermal reinjection sealing conveying device related to the present utility model is not limited to the respective structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0021] Refer to Figures 1 to 5, the present utility model provides a geothermal reinjection sealing and conveying device, including a device main body 1, and further including: a control mechanism 2, a pressurizing mechanism 3 and an exhaust structure 4. The side inner wall of the device main body 1 is movably connected to the side of the pressurizing mechanism 3. The bottom end of the control mechanism 2 is fixedly connected to the top end of the pressurizing mechanism 3. The side of the exhaust structure 4 is movably connected to the side of the pressurizing mechanism 3. The device main body 1 includes a conveying cylinder 101. A water pump 103 is fixedly connected to the side of the conveying cylinder 101. A conveying pipe 102 is fixedly connected to the side of the conveying cylinder 101. The pressurizing mechanism 3 includes a mounting plate 301. A hydraulic telescopic rod 302 is fixedly connected to the top end of the mounting plate 301. The top end of the hydraulic telescopic rod 302 is fixedly connected to the side inner wall of the conveying cylinder 101. A pressure spring 306 is fixedly connected to the bottom end of the mounting plate 301. The bottom end of the pressure spring 306 is fixedly connected to a sealing piston 303. The side of the sealing piston 303 is movably connected to the side inner wall of the conveying cylinder 101. The control mechanism 2 includes a mounting cylinder 201. The bottom end of the mounting cylinder 201 is fixedly connected to the top end of the mounting plate 301. A slider 205 is movably connected to the side inner wall of the mounting cylinder 201. A connecting rod 202 is fixedly connected to the bottom end of the slider 205. The bottom end of the connecting rod 202 passes through the bottom end of the mounting plate 301 and is fixedly connected to the top end of the sealing piston 303. A first control device 203 is fixedly connected to the side of the mounting cylinder 201. A second control device 204 is fixedly connected to the side of the mounting cylinder 201. When the water pump 103 operates, the used groundwater is sent into the interior of the conveying cylinder 101. The hydraulic telescopic rod 302 pushes the mounting plate 301 to move downward for extrusion, so that the pressure inside the conveying cylinder 101 increases. At this time, the pressure spring 306 contracts, causing the connecting rod 202 to move upward, and the slider 205 to move upward along the side inner wall of the mounting cylinder 201 until the slider 205 contacts the first control device 203, causing the first control device 203 to control the hydraulic telescopic rod 302 to stop pushing the mounting plate 301 downward, and control the hydraulic telescopic rod 302 to drive the mounting plate 301 to move upward to separate the slider 205 from the first control device 203. During the operation, when the pressure inside the conveying cylinder 101 decreases, the pressure spring 306 pushes the sealing piston 303 to move downward, causing the connecting rod 202 to drive the slider 205 to move downward to contact the second control device 204, causing the second control device 204 to control the hydraulic telescopic rod 302 to drive the mounting plate 301 to move downward to contract the pressure spring 306 until the slider 205 separates from the second control device 204, so as to control the deformation amount of the pressure spring 306 within a suitable range, so as to keep a suitable pressure inside the conveying cylinder 101, reduce the decompression and discharge of gas in the groundwater into the interior of the conveying device, and finally the groundwater is poured into the ground from the conveying pipe 102.

[0022] Among them, a limit pin 304 is fixedly connected to the top end of the sealing piston 303. A limit hole 305 is opened at the top end of the mounting plate 301. The side surface of the limit hole 305 is movably connected to the side surface of the limit pin 304. When the compression spring 306 contracts, the limit pin 304 moves up and down along the limit hole 305 to limit the sealing piston 303.

[0023] Among them, a sealing ring 307 is fixedly connected to the side surface of the sealing piston 303. The two hydraulic telescopic rods 302 are symmetrically distributed along the center of the mounting plate 301.

[0024] Among them, the first control device 203 includes a mounting block 2031. The side surface of the mounting block 2031 is fixedly connected to the side surface of the mounting cylinder 201. A return spring 2036 is fixedly connected to the inner side wall of the side surface of the mounting block 2031. A mounting frame 2034 is fixedly connected to the side surface of the return spring 2036. A buffer spring 2032 is fixedly connected to the inner side wall of the side surface of the mounting block 2031. A first touch switch 2035 is fixedly connected to the side surface of the buffer spring 2032. The structure of the first control device 203 is the same as that of the second control device 204. When the slider 205 moves to the position of the first control device 203, the slider 205 contacts the mounting frame 2034, causing the mounting frame 2034 to retract into the mounting block 2031 and contact the first touch switch 2035, so that the first touch switch 2035 controls the hydraulic telescopic rod 302 to push the mounting plate 301 upward. When the mounting frame 2034 is separated from the slider 205, the return spring 2036 pushes the mounting frame 2034 to move outward, causing the mounting frame 2034 to be separated from the first touch switch 2035, and the first touch switch 2035 controls the hydraulic telescopic rod 302 to stop.

[0025] Among them, a roller 2033 is movably connected to the side surface of the mounting frame 2034 through a pin. An arc angle 206 is opened on the side surface of the slider 205. When the slider 205 moves to the position of the roller 2033, the roller 2033 contacts the arc angle 206 and the roller 2033 rolls to avoid jamming.

[0026] Among them, a through hole 308 is provided at the top end of the sealing piston 303. The exhaust structure 4 includes a mounting rod 403. A floating device 401 is fixedly connected to the bottom end of the mounting rod 403. A pressing block 405 is fixedly connected to the top end of the mounting rod 403. The side surface of the mounting rod 403 is movably connected to the side surface of the through hole 308. A second touch switch 404 is fixedly connected to the top end of the sealing piston 303 at a position corresponding to the pressing block 405. A third touch switch 406 is fixedly connected to the bottom end of the sealing piston 303 at a position corresponding to the floating device 401. An exhaust pipe 402 is fixedly connected to the top end of the sealing piston 303. An electromagnetic valve is fixedly connected to the side surface of the exhaust pipe 402. During the operation of the device, the exhaust structure 4 moves up and down with the sealing piston 303. Among them, through grooves are provided at the top end of the mounting plate 301 at positions corresponding to the exhaust pipe 402 and the mounting rod 403. During use, the floating device 401 floats on the water surface inside the conveying cylinder 101. As the water level inside the conveying cylinder 101 changes, the mounting rod 403 is driven to move up and down along the through hole 308. When the gas inside the conveying cylinder 101 increases and the floating device 401 moves upward to contact the third touch switch 406 at the bottom end of the sealing piston 303, the third touch switch 406 controls the electromagnetic valve on the side of the exhaust pipe 402 to open and discharge the gas inside the conveying cylinder 101. As the gas inside the conveying cylinder 101 decreases, the floating device 401 approaches the top of the sealing piston 303, so that the top of the floating device 401 contacts the third touch switch 406. The third touch switch 406 controls the electromagnetic valve on the side of the exhaust pipe 402 to close and stop exhausting, thus preventing gas from entering the conveying pipeline and pouring into the ground.

[0027] Working principle of the utility model: The water pump 103 operates to send the used groundwater into the interior of the conveying cylinder 101. The hydraulic telescopic rod 302 pushes the mounting plate 301 downward to perform extrusion, increasing the pressure inside the conveying cylinder 101. At this time, the pressure spring 306 contracts, causing the connecting rod 202 to move upward, making the slider 205 move upward along the inner side wall of the mounting cylinder 201 until the slider 205 contacts the first control device 203. When the slider 205 contacts the roller 2033, the mounting bracket 2034 is retracted into the mounting block 2031 and contacts the first touch switch 2035, causing the first touch switch 2035 to control the hydraulic telescopic rod 302 to push the mounting plate 301 upward. When the roller 2033 separates from the slider 205, the return spring 2036 pushes the mounting bracket 2034 outward, causing the mounting bracket 2034 to separate from the first touch switch 2035, and the first touch switch 2035 controls the hydraulic telescopic rod 302 to stop. During the operation, when the pressure inside the conveying cylinder 101 decreases, the pressure spring 306 pushes the sealing piston 303 downward, causing the connecting rod 202 to drive the slider 205 to move downward to contact the second control device 204. The second control device 204 controls the hydraulic telescopic rod 302 to drive the mounting plate 301 downward, causing the pressure spring 306 to contract until the slider 205 separates from the second control device 204, so that the deformation amount of the pressure spring 306 is controlled within a suitable range, thereby keeping the pressure inside the conveying cylinder 101 appropriate, reducing the decompression and discharge of gas in the groundwater into the conveying device. Finally, the groundwater is poured into the ground through the conveying pipe 102. At the same time, the floating device 401 floats on the water surface inside the conveying cylinder 101, and drives the mounting rod 403 to move up and down along the through hole 308 as the water level inside the conveying cylinder 101 changes. When the gas inside the conveying cylinder 101 increases, the floating device 401 moves upward to contact the third touch switch 406 at the bottom end of the sealing piston 303, causing the third touch switch 406 to control the solenoid valve on the side of the exhaust pipe 402 to open and discharge the gas inside the conveying cylinder 101. As the gas inside the conveying cylinder 101 decreases, the floating device 401 approaches the top of the sealing piston 303, so that the top of the floating device 401 contacts the third touch switch 406, and the third touch switch 406 controls the solenoid valve on the side of the exhaust pipe 402 to close and stop exhausting, thus preventing gas from entering the conveying pipeline and pouring into the ground.

[0028] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A geothermal reinjection sealing and conveying device, comprising a device main body (1), characterized in that, It also includes: a control mechanism (2), a supercharging mechanism (3), and an exhaust structure (4). The side inner wall of the equipment main body (1) is movably connected to the side of the supercharging mechanism (3). The bottom end of the control mechanism (2) is fixedly connected to the top end of the supercharging mechanism (3). The side of the exhaust structure (4) is movably connected to the side of the supercharging mechanism (3). The equipment main body (1) includes a conveying cylinder (101). A water pump (103) is fixedly connected to the side of the conveying cylinder (101). A conveying pipe (102) is fixedly connected to the side of the conveying cylinder (101). The supercharging mechanism (3) includes a mounting plate (301). A hydraulic telescopic rod (302) is fixedly connected to the top end of the mounting plate (301). The top end of the hydraulic telescopic rod (302) is fixedly connected to the side inner wall of the conveying cylinder (101). A pressure spring (306) is fixedly connected to the bottom end of the mounting plate (301). The bottom end of the pressure spring (306) is fixedly connected to a sealing piston (303). The side of the sealing piston (303) is movably connected to the side inner wall of the conveying cylinder (101). The control mechanism (2) includes a mounting cylinder (201). The bottom end of the mounting cylinder (201) is fixedly connected to the top end of the mounting plate (301). A slider (205) is movably connected to the side inner wall of the mounting cylinder (201). A connecting rod (202) is fixedly connected to the bottom end of the slider (205). The bottom end of the connecting rod (202) passes through the bottom end of the mounting plate (301) and is fixedly connected to the top end of the sealing piston (303). A first control device (203) is fixedly connected to the side of the mounting cylinder (201). A second control device (204) is fixedly connected to the side of the mounting cylinder (201).

2. The geothermal reinjection sealing and conveying device according to claim 1, wherein: A limit pin (304) is fixedly connected to the top end of the sealing piston (303). A limit hole (305) is formed in the top end of the mounting plate (301). The side of the limit hole (305) is movably connected to the side of the limit pin (304).

3. The geothermal reinjection sealing and conveying device according to claim 1, wherein: A sealing ring (307) is fixedly connected to the side of the sealing piston (303). The two hydraulic telescopic rods (302) are symmetrically distributed along the center of the mounting plate (301).

4. A geothermal reinjection sealing and conveying device according to claim 1, characterized in that: The first control device (203) includes a mounting block (2031). The side of the mounting block (2031) is fixedly connected to the side of the mounting cylinder (201). A return spring (2036) is fixedly connected to the side inner wall of the mounting block (2031). A mounting frame (2034) is fixedly connected to the side of the return spring (2036). A buffer spring (2032) is fixedly connected to the side inner wall of the mounting block (2031). A first touch switch (2035) is fixedly connected to the side of the buffer spring (2032). The structure of the first control device (203) is the same as that of the second control device (204).

5. A geothermal reinjection sealing and conveying device according to claim 4, characterized in that: The side of the mounting frame (2034) is movably connected to a roller (2033) through a pin. An arc angle (206) is formed in the side of the slider (205).

6. The geothermal reinjection sealing and conveying device according to claim 1, wherein: A through hole (308) is provided at the top end of the sealing piston (303). The exhaust structure (4) includes a mounting rod (403). A floating device (401) is fixedly connected to the bottom end of the mounting rod (403). A pressing block (405) is fixedly connected to the top end of the mounting rod (403). The side surface of the mounting rod (403) is movably connected to the side surface of the through hole (308). A second touch switch (404) is fixedly connected to the top end of the sealing piston (303) at a position corresponding to the pressing block (405). A third touch switch (406) is fixedly connected to the bottom end of the sealing piston (303) at a position corresponding to the floating device (401). An exhaust pipe (402) is fixedly connected to the top end of the sealing piston (303). A solenoid valve is fixedly connected to the side surface of the exhaust pipe (402).

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