Well group mutual resistance relieving system for geothermal multi-well parallel connection

Abstract

The utility model provides a well group mutual resistance relieving system for geothermal multi-well parallel connection. The well group mutual resistance relieving system comprises a water tank, a water guide pipe and a water drainage pipe. The water tank is provided with a water containing cavity, and a plurality of water inlets are evenly distributed in the side wall of the water containing cavity. The water guide pipes correspond to the water inlets in a one-to-one mode, one end of each water guide pipe extends into one geothermal well, and the other end of each water guide pipe communicates with the corresponding water inlet; the drainage pipe is communicated with a water outlet of the water tank and used for guiding water in the water tank into the water using unit. According to the well group mutual resistance relieving system for geothermal multi-well parallel connection, the multiple water inlets and the multiple water guide pipes are arranged, the water guide pipes and the water inlets are arranged in a one-to-one correspondence mode, and geothermal water is guided into the water containing cavity through the corresponding water inlets through the water guide pipes; therefore, geothermal water in the geothermal wells can be directly guided into the water tank through the water guide pipe, the geothermal wells do not influence one another in the water pumping process, the pumping effect of the geothermal water is guaranteed, and practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of geothermal well group mutual resistance mitigation equipment, and specifically relates to a well group mutual resistance mitigation system for geothermal multiple wells in parallel. Background Art

[0002] Geothermal resources are a clean, environmentally friendly, renewable energy source with the advantages of large reserves, wide distribution, recyclability, and good stability. They are of great significance for adjusting the energy structure, improving the environment, and achieving green and low-carbon development. As a common geothermal resource, geothermal water is widely used in water-using units such as medical bathing, aquaculture, and some geothermal heating.

[0003] In the prior art, multiple geothermal wells are usually connected in parallel to the same water inlet pipe, and the geothermal water is introduced into the water tank through the water inlet pipe to facilitate the use of geothermal water. In the process of introducing geothermal water into the water tank, mutual resistance will occur between the geothermal wells (mutual resistance of the well group refers to the phenomenon that in a multi-well pumping system, due to the interaction between the wells, the pumping volume of each well is reduced compared with the single pumping. This interaction can be caused by various factors such as the hydrogeological conditions between the wells, the arrangement of the wells, the well spacing, and the pumping capacity of the wells). When multiple geothermal wells work together, if the water level drop value in the well is kept unchanged, then the water output of each well must be less than the water output when each well works alone. When the well groups interfere with each other, if the water output of each well is kept unchanged, then the water level drop value of each well must be greater than the water level drop value when each well works alone. The mutual resistance of the well group affects the water output and water level drop value of each geothermal well, affects the extraction and use of geothermal water, and has poor practicality. Utility Model Content

[0004] The utility model provides a well group mutual resistance mitigation system for geothermal multiple wells in parallel, aiming to solve the problem in the prior art that multiple geothermal wells are connected in parallel to the same water inlet pipe, geothermal water is introduced into a water tank through the water inlet pipe, and when multiple geothermal wells work together, mutual resistance of the well group will occur, which affects the extraction and use of geothermal water and has poor practicality.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a well group mutual resistance mitigation system for geothermal multi-well parallel connection, comprising:

[0006] A water tank having a water storage chamber, wherein a plurality of water inlets are evenly distributed on the side wall of the water storage chamber;

[0007] A plurality of water pipes, each of which is arranged in one-to-one correspondence with each of the water inlets, one end of each of the water pipes extending into one of the geothermal wells, and the other end communicating with the corresponding water inlet;

[0008] A drain pipe is connected to the water outlet of the water tank and is used to guide the water in the water tank into the water use unit.

[0009] In a possible implementation, each of the water conduits is provided with a first control valve, and each of the drainage pipes is provided with a second control valve.

[0010] In a possible implementation, a first liquid level gauge, a second liquid level gauge and a third liquid level gauge are sequentially arranged in the water tank from bottom to top for monitoring the liquid level height in the water tank.

[0011] In a possible implementation, a plurality of guide grooves are provided in the water tank, each of the guide grooves is arranged in one-to-one correspondence with each of the water inlets, each of the guide grooves is arranged at an angle, and each of the guide grooves has a high end and a low end, the high end is connected to the water inlet, and the low end is connected to the inner wall of the water tank.

[0012] In a possible implementation, a plurality of water leakage holes are evenly distributed on each of the guide grooves.

[0013] In a possible implementation, each of the guide grooves is an arc-shaped groove.

[0014] In a possible implementation, the well group mutual resistance mitigation system for geothermal multiple wells in parallel also includes a controller, and the controller is electrically connected to each of the first control valve, the second control valve, the first liquid level meter, the second liquid level meter and the third liquid level meter.

[0015] The beneficial effect of the well group mutual resistance mitigation system for geothermal multi-wells in parallel provided by the utility model is that: compared with the prior art, by arranging multiple water inlets on the side wall of the water storage chamber, multiple water pipes are also provided, and each water pipe is arranged in a one-to-one correspondence with each water inlet, and the geothermal water in the corresponding geothermal well is introduced into the water storage chamber through the corresponding water inlet through each water pipe, so that the geothermal water in each geothermal well can be directly introduced into the water tank through the water pipe, and the geothermal wells in each geothermal well do not affect each other during the pumping process, thereby ensuring the extraction effect of geothermal water and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a well group mutual resistance mitigation system for geothermal multi-well parallel connection provided by an embodiment of the utility model;

[0017] Figure 2 Schematic diagram of the coordination structure of the water tank and the diversion trough for the well group mutual resistance mitigation system for geothermal multi-well parallel connection provided by the embodiment of the utility model Figure 1 ;

[0018] Figure 3Schematic diagram of the coordination structure of the water tank and the diversion trough for the well group mutual resistance mitigation system for geothermal multi-well parallel connection provided by the embodiment of the utility model Figure 2 ;

[0019] Figure 4 Schematic diagram of the coordination structure of the water tank and the diversion trough for the well group mutual resistance mitigation system for geothermal multi-well parallel connection provided by the embodiment of the utility model Figure 3 .

[0020] Description of reference numerals:

[0021] 10. Water tank; 11. Water inlet; 12. Water outlet; 13. Water storage chamber; 20. Water guide pipe; 30. Drain pipe; 40. First control valve; 50. Second control valve; 60. First liquid level gauge; 70. Second liquid level gauge; 80. Third liquid level gauge; 90. Diversion trough; 91. Leakage hole; 100. Geothermal well. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] It should be noted that the directions or positional relationships indicated by terms such as “length”, “width”, “height”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “head” and “tail” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0024] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "fixation", "setting" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0026] Please also read Figures 1 to 4 , the mutual resistance mitigation system for geothermal wells in parallel provided by the utility model is now described. The mutual resistance mitigation system for geothermal wells in parallel includes a water tank 10, a water pipe 20 and a drainage pipe 30. The water tank 10 has a water storage chamber 13, and a plurality of water inlets 11 are evenly distributed on the side wall of the water storage chamber 13. There are a plurality of water pipes 20, and each water pipe 20 is arranged in a one-to-one correspondence with each water inlet 11. One end of each water pipe 20 extends to one of the geothermal wells 100, and the other end is connected to the corresponding water inlet 11. The drainage pipe 30 is connected to the water outlet 12 of the water tank 10, and is used to guide the water in the water tank 10 into the water use unit.

[0027] In this embodiment, the water tank 10 has a water storage chamber 13, and a plurality of water inlets 11 are arranged on the side wall of the water storage chamber 13, and the water inlets 11 are evenly arranged. There are a plurality of water pipes 20, and each water pipe 20 is arranged one-to-one with each water inlet 11, and one end of each water pipe 20 extends to one of the geothermal wells 100, and the other end is connected to the corresponding water inlet 11, so that the geothermal water in the geothermal well 100 is introduced into the water tank 10 through each water pipe 20. A drainage pipe 30 is provided in communication with the water outlet 12 of the water tank 10, so that the water in the water tank 10 is introduced into the water use unit through the drainage pipe 30.

[0028] Compared with the prior art, the well group mutual resistance mitigation system for geothermal multi-wells in parallel provided by the embodiment of the utility model is provided with multiple water inlets 11 on the side wall of the water storage chamber 13, and multiple water pipes 20 are also provided. Each water pipe 20 is arranged in a one-to-one correspondence with each water inlet 11. The geothermal water in the corresponding geothermal well 100 is introduced into the water storage chamber 13 through the corresponding water inlet 11 through each water pipe 20, so that the geothermal water in each geothermal well 100 can be directly introduced into the water tank 10 through the water pipe 20. The geothermal wells 100 in each place do not affect each other during the pumping process, thereby ensuring the extraction effect of geothermal water and improving practicality.

[0029] In some embodiments, see Figure 1 Each water pipe 20 is provided with a first control valve 40, and the drainage pipe 30 is provided with a second control valve 50. In this embodiment, each first control valve is used to control the opening or closing of the corresponding water pipe 20. The second control valve 50 is used to control the opening or closing of the drainage pipe 30.

[0030] In some embodiments, see Figure 3 , the water tank 10 is provided with a first liquid level gauge 60, a second liquid level gauge 70 and a third liquid level gauge 80 from bottom to top, and the first liquid level gauge 60, the second liquid level gauge 70 and the third liquid level gauge 80 are used to monitor the liquid level height in the water tank 10. In this embodiment, when the water level in the water tank 10 is lower than the first liquid level gauge 60, the opening of each first control valve 40 is adjusted to speed up the speed of passing water into the water tank 10. When the water level in the water tank 10 is higher than the second liquid level gauge 70, the opening of the second control valve 50 is adjusted to speed up the speed of draining water from the water tank 10. When the water level in the water tank 10 is higher than the third liquid level gauge 80, the opening of each first control valve 40 is adjusted to reduce the speed of passing water into the water tank 10.

[0031] In some embodiments, see Figures 2 to 4 A plurality of guide grooves 90 are provided in the water tank 10, each guide groove 90 is arranged corresponding to each water inlet 11, each guide groove 90 is arranged inclined, and each guide groove 90 has a high end and a low end, the high end is connected to the water inlet 11, and the low end is connected to the inner wall of the water tank 10. In this embodiment, if the water level in the water tank 10 is low, the geothermal water introduced by the water inlet 11 located above the water level will present a parabola. At this time, the newly introduced water will impact the water in the water tank 10, causing a lot of noise, and will cause splashes on the water surface or waves on the water surface. This will affect the monitoring of the water level by the first liquid level sensor 60, the second liquid level sensor 70 and the third liquid level sensor 80, resulting in inaccurate water level monitoring. Therefore, a guide groove 90 is provided corresponding to each water inlet 11, and the geothermal water introduced by the water inlet 11 is drained into the water tank 10 through each guide groove 90. The geothermal water can flow evenly into the water tank 10 to avoid impact, which has good practicality.

[0032] In some embodiments, see Figure 2 and Figure 3 , a plurality of water leakage holes 91 are evenly distributed on each guide groove 90. In this embodiment, water in the guide groove 90 can flow out through each water leakage hole 91, so that the geothermal water flows into the water tank 10 evenly.

[0033] In some embodiments, see Figures 2 to 4 Each guide groove 90 is an arc-shaped groove to prevent geothermal water from accumulating in the guide groove 90 .

[0034] In some embodiments, the well group mutual resistance mitigation system for geothermal multi-well parallel connection provided by the utility model embodiment further includes a controller (not shown in the figure), and the controller is electrically connected to each first control valve 40, the second control valve 50, the first liquid level 60, the second liquid level 70 and the third liquid level 80. In this embodiment, the controller can be made of existing technology. By electrically connecting the controller to each first control valve 40, the second control valve 50, the first liquid level 60, the second liquid level 70 and the third liquid level 80, the water diversion process into the water tank 10 is automated, which saves manpower and has good practicality.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A well group mutual resistance mitigation system for geothermal multi-well parallel connection, characterized in that: include: A water tank having a water storage chamber, wherein a plurality of water inlets are evenly distributed on the side wall of the water storage chamber; A plurality of water pipes, each of which is arranged in one-to-one correspondence with each of the water inlets, one end of each of the water pipes extending into one of the geothermal wells, and the other end communicating with the corresponding water inlet; A drain pipe is connected to the water outlet of the water tank and is used to guide the water in the water tank into the water use unit.

2. The well group mutual resistance mitigation system for geothermal multi-well parallel connection according to claim 1, characterized in that: Each of the water guide pipes is provided with a first control valve, and each of the water drain pipes is provided with a second control valve.

3. The well group mutual resistance mitigation system for geothermal multi-well parallel connection according to claim 2, characterized in that: The water tank is provided with a first liquid level gauge, a second liquid level gauge and a third liquid level gauge in sequence from bottom to top, for monitoring the liquid level height in the water tank.

4. The well group mutual resistance mitigation system for geothermal multi-well parallel connection according to claim 1, characterized in that: A plurality of guide grooves are provided in the water tank, each of which is arranged in one-to-one correspondence with each of the water inlets, each of which is arranged obliquely, and each of which has a high end and a low end, the high end is connected to the water inlet, and the low end is connected to the inner wall of the water tank.

5. The well group mutual resistance mitigation system for geothermal multi-well parallel connection according to claim 4, characterized in that: A plurality of water leakage holes are evenly distributed on each of the guide grooves.

6. The well group mutual resistance mitigation system for geothermal multi-well parallel connection according to claim 4, characterized in that: Each of the guide grooves is an arc-shaped groove.

7. The well group mutual resistance mitigation system for geothermal multi-well parallel connection according to claim 3, characterized in that: The well group mutual resistance mitigation system for geothermal multi-well parallel connection also includes a controller, which is electrically connected to each of the first control valve, the second control valve, the first liquid level meter, the second liquid level meter and the third liquid level meter.

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