Negative pressure geothermal recharge pressure balancing device capable of resisting generation of vacuum column

Abstract

The utility model discloses a geothermal recharge pressure balancing device capable of resisting negative pressure generated by a vacuum column, which comprises a base, and a buffer tank is mounted on the surface of the base; a first pipeline is installed on one side of the buffer tank, a second pipeline is installed on the surface of the buffer tank, and a control mechanism is installed on the surface of the first pipeline and comprises the structure that the surface of the first pipeline is connected with an air inlet pipe, an air inlet valve is arranged in the air inlet pipe, and an air outlet pipe is installed on the surface of the first pipeline. According to the geothermal recharge pressure balancing device capable of resisting negative pressure generated by the vacuum column, the control mechanism is arranged, the vacuum column can be prevented from being generated in the device, the pressure in the second pipeline is detected through the pressure sensor, when negative pressure is generated in the second pipeline, the pressure sensor drives the air inlet valve through the control mechanism to enable air to enter the device, and negative pressure is prevented from being generated in the device; the surface of the pressure sensor is cleaned, and the measurement stability of the pressure sensor is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of geothermal recharge, in particular to a negative pressure geothermal recharge pressure balancing device generated by a vacuum-resistant column. Background Art

[0002] It is a measure to avoid thermal pollution and chemical pollution caused by direct discharge of geothermal wastewater, and plays an important role in maintaining heat storage pressure and ensuring the technical conditions for exploitation of geothermal fields. At the same time, geothermal reinjection is a measure to avoid thermal pollution and chemical pollution caused by direct discharge of geothermal wastewater, and plays an important role in maintaining heat storage pressure and ensuring the technical conditions for exploitation of geothermal fields. At the same time, geothermal reinjection is a measure to avoid thermal pollution and chemical pollution caused by direct discharge of geothermal wastewater, and plays an important role in maintaining heat storage pressure and ensuring the technical conditions for exploitation of geothermal fields. At the same time, geothermal reinjection is a measure to extend the service life of geothermal fields, reduce environmental pollution caused by heating tail water discharge, and prevent ground subsidence caused by exploitation. However, the existing negative pressure geothermal reinjection pressure balance device is prone to produce vacuum columns. The negative pressure generated by the vacuum column may cause reinjection difficulties, which may cause equipment damage and other problems, making it inconvenient for subsequent use of the device. Utility Model Content

[0003] The purpose of the present invention is to provide a geothermal re-injection pressure balancing device that is resistant to the negative pressure generated by vacuum columns, so as to solve the problems raised in the above background technology that vacuum columns are easily generated, the negative pressure generated by the vacuum columns may cause re-injection difficulties, may cause damage to equipment, and is inconvenient for subsequent use of the device.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a negative pressure geothermal recharge pressure balancing device generated by a vacuum column, comprising a base, a buffer tank being mounted on the surface of the base;

[0005] Pipe one is installed on one side of the buffer tank, and pipe two is installed on the surface of the buffer tank, and a control mechanism is installed on the surface of pipe one, and the control mechanism includes: the surface of pipe one is connected to an air inlet pipe, and an air inlet valve is arranged inside the air inlet pipe, an air outlet pipe is installed on the surface of pipe one, and an air outlet valve is installed inside the air outlet pipe, a placement groove is continuously installed on the surface of pipe two, and a telescopic rod is installed inside the placement groove, and a pressure sensor is connected to the end of the telescopic rod, the inner wall of pipe two is continuously provided with rubber blocks, and cleaning rods are symmetrically arranged inside the placement groove.

[0006] Preferably, the end of the cleaning rod is in contact with the surface of the telescopic rod, and the surface of the second slidably connected pipe is located between the telescopic rod and the cleaning rod.

[0007] By adopting the above technical solution, the cleaning rod can clean the surface of the pressure sensor to prevent impurities from adhering to the surface of the pressure sensor.

[0008] Preferably, the rubber block is arranged in a ring shape, holes are continuously arranged on the surface of the second pipe, and the rubber block is arranged inside the holes of the second pipe.

[0009] By adopting the above technical solution, after the rubber block is removed, the interior of the rubber block can be closed.

[0010] Preferably, the rubber block is arranged around the outside of the telescopic rod, the end of the telescopic rod is arranged inside the hole of the second pipe, and the pressure sensor is arranged inside the second pipe.

[0011] By adopting the above technical solution, the end of the telescopic rod is retracted, and the telescopic rod drives the pressure sensor to move, so that the pressure sensor can scrape the surface of the pressure sensor when the rubber block is in the process of scraping.

[0012] Preferably, a fixing mechanism is installed on the surface of the pipe 2, and the fixing mechanism includes: a mounting block is symmetrically fixedly connected to the surface of the pipe 2, and a screw rod is embedded in the interior of the mounting block, a limiting plate is slidably installed on the surface of the pipe 2, and a pointed cone is arranged around the bottom of the limiting plate, a silicone sheet is fixedly connected to the bottom of the limiting plate, and the end of the screw rod is connected to the surface of the limiting plate.

[0013] By adopting the above technical solution, the recharge port can be blocked through the fixing mechanism, thereby improving the practicality of the device.

[0014] Preferably, a thread is provided inside the mounting block, and the mounting block is threadedly connected to the screw rod, and the end of the screw rod is rotationally connected to the limiting plate.

[0015] By adopting the above technical solution, the screw rod is rotated so that the screw rod rotates along the thread inside the mounting block, and at this time the screw rod presses the limit plate downward.

[0016] Preferably, the pointed cone and the silicone sheet are both arranged at the bottom of the limiting plate, and the limiting plate and the second pipe are slidably connected.

[0017] By adopting the above technical solution, the screw rod pushes the limit plate to move downward, so that the limit plate moves on the second surface of the pipeline.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the negative pressure geothermal recharge pressure balancing device generated by the anti-vacuum column:

[0019] 1. A control mechanism is set up to prevent the generation of a vacuum column inside. The pressure inside pipe 2 is detected by a pressure sensor. When negative pressure is generated in pipe 2, the pressure sensor drives the air inlet valve through the control mechanism to allow gas to enter the interior, preventing negative pressure from being generated inside and cleaning the surface of the pressure sensor to maintain the stability of the pressure sensor's measurement.

[0020] 2. A fixing mechanism is set up to block the recharge port to increase the stability of the pipeline connection. The screw is rotated, and the screw pushes the limit plate downward. The limit plate drives the pointed cone downward so that the pointed cone is inserted into the ground. At the same time, the silicone sheet can block the outside of the recharge port to prevent the internal air flow and water flow from flowing back, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the pointed cone installation of the utility model;

[0023] Figure 3 This is a schematic diagram of the internal installation three-dimensional structure of the second pipeline of the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the limit plate installation of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the placement slot installation of the utility model.

[0026] In the figure: 10, base; 20, buffer tank;

[0027] 30. Pipe 1; 301. Inlet pipe; 302. Inlet valve; 303. Outlet pipe; 304. Outlet valve; 305. Placement slot; 306. Telescopic rod; 307. Cleaning rod; 308. Pressure sensor; 309. Rubber block;

[0028] 40. Pipeline 2;

[0029] 50. Mounting block; 501. Screw; 502. Limit plate; 503. Cone; 504. Silicone sheet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-5The utility model provides a technical solution: a negative pressure geothermal recharge pressure balancing device generated by a vacuum column, comprising a base 10, a buffer tank 20, a first pipe 30, an air inlet pipe 301, an air inlet valve 302, an air outlet pipe 303, an air outlet valve 304, a placement slot 305, a telescopic rod 306, a cleaning rod 307, a pressure sensor 308, a rubber block 309, a second pipe 40, a mounting block 50, a screw rod 501, a limiting plate 502, a pointed cone 503, and a silicone sheet 504;

[0032] The negative pressure geothermal recharge pressure balancing device can prevent the generation of a vacuum column inside. The specific implementation method is as follows:

[0033] A buffer tank 20 is installed on the surface of the base 10, a pipe 30 is installed on one side of the buffer tank 20, and a pipe 2 40 is installed on the surface of the buffer tank 20, and a control mechanism is installed on the surface of the pipe 1 30, and the control mechanism includes: an air inlet pipe 301 is connected to the surface of the pipe 1 30, and an air inlet valve 302 is provided inside the air inlet pipe 301, an air outlet pipe 303 is installed on the surface of the pipe 1 30, and an air outlet valve 304 is installed inside the air outlet pipe 303, and a placement groove 305 is continuously installed on the surface of the pipe 2 40, and a telescopic rod 306 is installed inside the placement groove 305, and the end of the telescopic rod 306 is connected to a pressure sensor 308. The inner wall of pipe 2 40 is continuously provided with rubber blocks 309. Cleaning rods 307 are symmetrically provided inside the placement groove 305. The end of the cleaning rod 307 is in contact with the surface of the telescopic rod 306, and the telescopic rod 306 and the cleaning rod 307 are slidably connected to the surface of pipe 2 40. The rubber blocks 309 are arranged in a circular shape. The surface of pipe 2 40 is continuously provided with holes, and the rubber blocks 309 are arranged inside the holes of pipe 2 40. The rubber blocks 309 are arranged around the outside of the telescopic rod 306. The end of the telescopic rod 306 is arranged inside the hole of pipe 2 40. The pressure sensor 308 is arranged inside pipe 2 40.

[0034] The pressure sensor 308 can perform real-time detection on the interior of the pipeline 30 and detect the pressure inside the pipeline 30. When negative pressure is generated inside the pipeline 30, the pipeline 30 transmits the signal to the interior of the control device, which opens the air inlet valve 302. The air inlet valve 302 opens the air inlet pipe 301 to allow air to enter the air inlet pipe 301. The air enters the interior of the pipeline 30 through the buffer tank 20 to prevent negative pressure from being generated inside the pipeline 30. When the pressure sensor 308 detects that the pressure inside the pipeline 30 is too high, the pressure sensor 308 transmits a signal to the interior of the control device, which controls the air outlet valve 304 to open. The air outlet valve 304 can open the air outlet pipe 303 to discharge the gas inside the pipeline 30 through the air outlet pipe 303. When geothermal reinjection gas enters the pipeline, the air can enter the interior of the buffer tank 20 for buffering to prevent the air from damaging the device.

[0035] The telescopic rod 306 pushes the pressure sensor 308 to move into the interior of the pipe 30 to detect the interior of the pipe 30. After the pressure sensor 308 completes the detection, the telescopic rod 306 can be started to retract the telescopic rod 306. The telescopic rod 306 drives the pressure sensor 308 to move outward, so that the pressure sensor 308 moves outward inside the rubber block 309. The rubber block 309 can clean the surface of the pressure sensor 308 and the telescopic rod 306. When the pressure sensor 308 moves into the placement slot 305, the cleaning rod 307 can clean the surface of the pressure sensor 308. At this time, the pressure sensor 308 is pulled out from the rubber block 309, causing the middle part of the rubber block 309 to retract inward, and the middle part of the rubber block 309 can be tightened.

[0036] The negative pressure geothermal recharge pressure balancing device can block the recharge outlet. The specific implementation method is as follows:

[0037] A fixing mechanism is installed on the surface of pipe 2 40, and the fixing mechanism includes: a mounting block 50 is symmetrically fixedly connected to the surface of pipe 2 40, and a screw rod 501 is embedded in the interior of the mounting block 50, a limiting plate 502 is slidably installed on the surface of pipe 2 40, and a pointed cone 503 is arranged around the bottom of the limiting plate 502, a silicone sheet 504 is fixedly connected to the bottom of the limiting plate 502, the end of the screw rod 501 is connected to the surface of the limiting plate 502, a thread is provided inside the mounting block 50, and the mounting block 50 and the screw rod 501 are threadedly connected, the end of the screw rod 501 and the limiting plate 502 are rotationally connected, the pointed cone 503 and the silicone sheet 504 are both arranged at the bottom of the limiting plate 502, and the limiting plate 502 and pipe 2 40 are slidingly connected.

[0038] Place pipe 2 40 inside the hole in the ground. At this time, the bottom of the limit plate 502 is in contact with the ground, and the bottoms of the silicone sheet 504 and the pointed cone 503 are both in contact with the ground. Turn the screw rods 501 on both sides downward to move the screw rods 501 downward along the internal threads of the mounting block 50. The ends of the screw rods 501 push the limit plate 502 downward, so that the limit plate 502 moves downward on the surface of pipe 2 40. The end of the limit plate 502 squeezes the silicone sheet 504 and the pointed cone 503 downward so that the bottom of the pointed cone 503 is inserted into the ground. The limit plate 502 can be positioned to facilitate the subsequent fixation of the limit plate 502. At the same time, the silicone sheet 504 is squeezed downward so that the bottom of the silicone sheet 504 is completely in contact with the ground to prevent gas and liquid leakage.

[0039] Working principle: When using the negative pressure geothermal recharge pressure balancing device generated by the anti-vacuum column, an outlet pipe 303, an outlet valve 304, a placement groove 305, a telescopic rod 306 and a cleaning rod 307 are set to prevent the generation of a vacuum column inside. A screw rod 501, a limiting plate 502, a pointed cone 503 and a silicone sheet 504 are set to block the recharge outlet, thereby increasing the overall practicality.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure geothermal recharge pressure balancing device generated by a vacuum-resistant column, comprising a base (10), a buffer tank (20) being mounted on the surface of the base (10); Its characteristics are: A pipe 1 (30) is installed on one side of the buffer tank (20), and a pipe 2 (40) is installed on the surface of the buffer tank (20), and a control mechanism is installed on the surface of the pipe 1 (30), and the control mechanism includes: an air inlet pipe (301) is connected to the surface of the pipe 1 (30), and an air inlet valve (302) is arranged inside the air inlet pipe (301), an air outlet pipe (303) is installed on the surface of the pipe 1 (30), and an air outlet valve (304) is installed inside the air outlet pipe (303), a placement groove (305) is continuously installed on the surface of the pipe 2 (40), and a telescopic rod (306) is installed inside the placement groove (305), and a pressure sensor (308) is connected to the end of the telescopic rod (306), the inner wall of the pipe 2 (40) is continuously provided with a rubber block (309), and a cleaning rod (307) is symmetrically arranged inside the placement groove (305).

2. The negative pressure geothermal recharge pressure balancing device generated by a vacuum-resistant column according to claim 1, characterized in that: The end of the cleaning rod (307) is in contact with the surface of the telescopic rod (306), and the surface of the second sliding connection pipe (40) is located between the telescopic rod (306) and the cleaning rod (307).

3. The negative pressure geothermal recharge pressure balancing device generated by a vacuum-resistant column according to claim 1, characterized in that: The rubber block (309) is arranged in a circular ring shape, the surface of the second pipe (40) is continuously provided with holes, and the rubber block (309) is arranged inside the holes of the second pipe (40).

4. The negative pressure geothermal recharge pressure balancing device generated by a vacuum-resistant column according to claim 1, characterized in that: The rubber block (309) is arranged around the outside of the telescopic rod (306), the end of the telescopic rod (306) is arranged inside the hole of the second pipe (40), and the pressure sensor (308) is arranged inside the second pipe (40).

5. The negative pressure geothermal recharge pressure balancing device generated by a vacuum-resistant column according to claim 1, characterized in that: The surface of the second pipe (40) is installed with a fixing mechanism, and the fixing mechanism includes: the surface of the second pipe (40) is symmetrically fixedly connected with a mounting block (50), and the interior of the mounting block (50) is embedded with a screw rod (501), the surface of the second pipe (40) is slidably installed with a limit plate (502), and the bottom of the limit plate (502) is surrounded by a pointed cone (503), the bottom of the limit plate (502) is fixedly connected with a silicone sheet (504), and the end of the screw rod (501) is connected to the surface of the limit plate (502).

6. The negative pressure geothermal recharge pressure balancing device generated by a vacuum-resistant column according to claim 5, characterized in that: The interior of the mounting block (50) is provided with a thread, and the mounting block (50) is threadedly connected to the screw rod (501), and the end of the screw rod (501) is rotationally connected to the limiting plate (502).

7. The negative pressure geothermal recharge pressure balancing device generated by a vacuum-resistant column according to claim 5, characterized in that: The pointed cone (503) and the silicone sheet (504) are both arranged at the bottom of the limiting plate (502), and the limiting plate (502) and the second pipe (40) are in sliding connection.

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