Geothermal tail water filter tank

Abstract

The present disclosure provides a geothermal tail water filtering tank, and relates to the technical field of geothermal energy, which comprises a tank body, one or more liquid inlets and one or more liquid outlets are arranged on the tank wall of the tank body; a filter core, the filter core is arranged in the tank body and can filter the sand-containing geothermal tail water entering the tank body through the liquid inlet; and a partition plate, the partition plate is arranged in the tank body and used for fixing the filter core and located between the liquid inlet and the liquid outlet. The present disclosure can solve the technical problems of low filtering efficiency, long precipitation time, difficult cleaning of sand particles after precipitation and easy clogging of the existing geothermal tail water sedimentation tank.

Description

Technical Field

[0001] This disclosure relates to the field of geothermal energy technology, and in particular to a geothermal tailwater filter tank. Background Technology

[0002] With the continuous development of geothermal energy utilization technology, medium-deep geothermal water heating systems have been widely used as an efficient and clean heating method.

[0003] However, medium-deep geothermal water often contains a high amount of sand during extraction. When geothermal tailwater containing sand and other impurities is reinjected into the ground, the sand gradually accumulates on the well walls, bottom, and in the pores of the surrounding aquifer, reducing the permeability of the reinjection well and decreasing the reinjection rate. In severe cases, the reinjection well may become completely blocked, preventing geothermal water reinjection. This not only affects the sustainable use of geothermal energy but may also lead to the waste of groundwater resources and damage to the geological environment.

[0004] Currently, the main treatment for sand content in geothermal tailwater is sedimentation tank filtration. Sedimentation tank filtration allows the geothermal tailwater to remain in the tank, allowing the sand particles to settle naturally. However, this method is inefficient, has a long sedimentation time, and the settled sand particles are difficult to clean, easily clogging the sedimentation tank. Utility Model Content

[0005] One of the technical problems that this disclosure aims to solve is that the existing geothermal tailwater sedimentation tank filtration methods have low filtration efficiency, long sedimentation time, and the sand particles after sedimentation are difficult to clean and easily clog the sedimentation tank.

[0006] To address the aforementioned technical problems, this disclosure provides a geothermal tailwater filtration tank, comprising:

[0007] The tank body has one or more inlets and one or more outlets on its tank wall;

[0008] A filter element, built into the tank, is used to filter sand-containing geothermal tailwater entering the tank through the inlet; and

[0009] A partition, which is built into the tank body, is used to fix the filter element and is located between the liquid inlet and the liquid outlet.

[0010] In some embodiments, the partition plate is provided with one or more liquid inlet holes;

[0011] Furthermore, the liquid inlet hole is connected and communicates with the liquid inlet end of the filter element, and is used to input sand-containing geothermal tailwater into the filter element.

[0012] In some embodiments, the partition is located at the bottom of the filter element, the bottom end of the filter element is provided with a water inlet, the water inlet can be connected and communicated with the liquid inlet hole, and the top end of the filter element is provided as a closed end.

[0013] The filter media of the filter element is disposed on its periphery.

[0014] In some embodiments, the filter element is a PP cotton filter element.

[0015] In some embodiments, the liquid inlet is located below the partition, and the liquid outlet is located above the partition.

[0016] In some embodiments, the diameter of the bottom of the tank is set to gradually decrease from below the partition;

[0017] Furthermore, a drain outlet is provided at the lowest point of the bottom of the tank, and the drain outlet is connected to a drain pipe.

[0018] In some embodiments, the can body includes a can body, the top of which is configured to be open;

[0019] The tank also includes a lid that can close the opening at the top of the tank, and the lid is detachably connected to the tank.

[0020] In some embodiments, the geothermal tailwater filter tank further includes:

[0021] Multiple L-shaped fixing plates are arranged at intervals along the circumference of the tank body on the inner wall of the tank body. Each L-shaped fixing plate includes a horizontal plate and a vertical plate extending vertically upward from the side of the horizontal plate near the inner wall of the tank body.

[0022] Mounting plate, which is used to fix the filter element, and the bottom surface of the edge of the mounting plate is configured to overlap the top surface of the horizontal plate.

[0023] In some embodiments, a spring pin is provided on the top surface of the mounting plate, the spring pin including a pin shaft with a beveled bottom end face, and a vertical hole is provided on the top surface of the mounting plate for the pin shaft to extend into.

[0024] The mounting plate has a horizontal hole on its side wall that communicates with the vertical hole. A rod is horizontally installed in the horizontal hole, and its end face near the pin is beveled.

[0025] The insertion rod is also fixed with an abutment plate, which is slidably disposed in the horizontal hole, and a telescopic spring fixed at one end to the abutment plate, wherein the outer diameter of the telescopic spring is larger than the diameter of the horizontal hole.

[0026] The inner wall of the vertical plate is provided with a socket that can communicate with the horizontal hole, and the end of the plug rod can extend into the socket.

[0027] When the pin is inserted into the horizontal hole, the telescopic spring is compressed, the inclined end face of the insertion rod engages with the inclined end face of the insertion rod, and the end of the insertion rod extends into the insertion hole.

[0028] In some embodiments, the outlet of the tank is connected to an outlet pipe, and the outlet pipe is equipped with a flow meter. The flow meter is configured to detect the flow rate in the outlet pipe and issue a low flow warning signal when the flow rate is less than a set value.

[0029] Through the above technical solution, the geothermal tailwater filtration tank provided in this disclosure can input sand-containing geothermal tailwater into the tank body through the inlet. The sand-containing geothermal tailwater is filtered by the filter element, and the filtered geothermal tailwater is then discharged from the outlet. Compared with sedimentation tank filtration, the filter element is easier to clean and has a higher sand removal efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of one embodiment of a geothermal tailwater filter tank disclosed in this disclosure.

[0032] Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle;

[0033] Figure 3 This is a partial structural diagram of an embodiment of the use of an L-shaped fixing plate and a mounting plate in combination, as disclosed in this disclosure.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Tank body; 110. Tank frame; 120. Tank cover; 130. Liquid inlet; 131. Liquid inlet pipe; 140. Liquid outlet; 141. Liquid outlet pipe; 150. Sewage pipe; 200. Filter element; 210. Water inlet; 300. Partition plate; 310. Liquid inlet hole; 400. L-shaped fixing plate; 410. Horizontal plate; 420. Vertical plate; 421. Insertion hole; 500. Mounting plate; 510. Spring pin; 511. Pin shaft; 520. Vertical hole; 530. Horizontal hole; 540. Insert rod; 541. Abutment plate; 542. Telescopic spring. Detailed Implementation

[0036] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0037] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0038] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0040] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0041] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0042] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0043] like Figure 1 As shown, this utility model provides a geothermal tailwater filtration tank, including a tank body 100, and one or more liquid inlets 130 and one or more liquid outlets 140 are provided on the tank wall of the tank body 100.

[0044] Filter element 200, built into tank 100, filters sand-containing geothermal tailwater entering tank 100 through inlet 130; and

[0045] The partition 300 is built into the tank 100 to fix the filter element 200 and is located between the liquid inlet 130 and the liquid outlet 140.

[0046] The baffle 300 can fix the filter element 200, provide stable support for the filter element 200, prevent the filter element 200 from tilting under the impact of sand-containing tailwater, and extend the service life of the filter element 200.

[0047] Sandy geothermal tailwater enters the tank 100 through inlet 130 and is then filtered by filter element 200. The filtered tailwater is discharged through outlet 140, eliminating the need for sedimentation and resulting in high filtration efficiency. After the filtration performance of filter element 200 declines over time, it can be replaced more quickly to clean the filtration equipment, shortening cleaning time and improving filtration efficiency.

[0048] In some embodiments, the partition 300 is provided with one or more liquid inlet holes 310;

[0049] Furthermore, the liquid inlet 310 is connected and communicates with the liquid inlet end of the filter element 200, and is used to input sand-containing geothermal tailwater into the filter element 200.

[0050] Specifically, such as Figure 1 and Figure 2 In the illustrated embodiment, multiple filter elements 200 are arranged radially spaced within the tank 100, with the center of the horizontal cross-section of the tank 100 as the center. Correspondingly, multiple liquid inlet holes 310 are provided on the partition plate 300, each corresponding to a liquid inlet end of the filter element 200.

[0051] The baffle 300 can block the sand-containing geothermal tailwater entering from the inlet 130, preventing the sand-containing geothermal tailwater from directly impacting the filter element 200 when it enters the tank 100, reducing the impact force of the sand-containing geothermal tailwater on the filter element 200, and extending the service life of the filter element 200.

[0052] The multiple filter cartridges 200 can handle a larger volume of sandy geothermal tailwater, improving filtration efficiency and extending the service life of the filter cartridges 200. Only the filter cartridges 200 that are severely clogged need to be replaced, thus saving filtration costs.

[0053] In some embodiments, the partition 300 is located at the bottom of the filter element 200, the bottom end of the filter element 200 is provided with a water inlet 210, the water inlet 210 can be connected and communicated with the liquid inlet 310, and the top end of the filter element 200 is set as a closed end.

[0054] The filter media of filter element 200 is arranged on its periphery.

[0055] like Figure 1 and Figure 2 In the illustrated embodiment, sandy geothermal wastewater enters the filter element 200 from the bottom and is filtered by the filter media located on its periphery. After filtration, it is discharged from the periphery of the filter element 200. This fully utilizes the filter media at all locations within the filter element 200, improving filtration efficiency.

[0056] In some implementations, the filter element 200 is a PP cotton filter element.

[0057] PP (PP refers to Polypropylene) cotton filter cartridge 200 features a large filtration area, large filtration flow rate, small pressure difference, high precision, no pollution, convenient installation and replacement, and low cost, making it widely applicable.

[0058] In some embodiments, the liquid inlet 130 is located below the partition 300, and the liquid outlet 140 is located above the partition 300.

[0059] like Figure 1 In the illustrated embodiment, the sand-containing geothermal wastewater enters from the bottom of tank 100 and exits from the top. This ensures that the sand particles are filtered and remain at the bottom of tank 100, guaranteeing purer water quality at outlet 140. It also prevents sand particles from damaging the filter media of filter element 200, extending its service life. Furthermore, this technical solution reduces the pressure impact of inlet 130 on filter element 200, helping to protect it and improving its stability and lifespan.

[0060] In some embodiments, the diameter of the bottom of the tank 100 is set to gradually decrease from below the partition 300;

[0061] Furthermore, a drain outlet is provided at the lowest point of the bottom of the tank 100, and the drain outlet is connected to and connected to a drain pipe 150.

[0062] In such Figure 1 In the illustrated embodiment, the bottom of the tank 100 is arc-shaped. Before filtration, some of the sand particles contained in the sandy geothermal tailwater will be scattered at the bottom of the tank 100. Based on the shape of the bottom of the tank 100, the sand particles will be collected at the very bottom of the tank 100 and can be periodically discharged through the drain outlet and drain pipe 150.

[0063] In some embodiments, the tank 100 includes a tank body 110, the top of which is open;

[0064] The can body 100 also includes a can lid 120 that can close the opening at the top of the can body 110, and the can lid 120 is detachably connected to the can body 110.

[0065] like Figure 1 In the embodiment shown, the separate and detachably connected tank body 110 and tank cover 120 make it easier to clean the entire tank body 100, and also make it easier to clean and replace the filter element 200.

[0066] In some embodiments, the geothermal tailwater filter tank further includes:

[0067] Multiple L-shaped fixing plates 400 are arranged at intervals along the circumference of the tank 100 on the inner wall of the tank 100. Each L-shaped fixing plate 400 includes a horizontal plate 410 and a vertical plate 420 extending vertically upward from the side of the horizontal plate 410 near the inner wall of the tank 100.

[0068] Mounting plate 500 is used to fix filter element 200. The bottom surface of the edge of mounting plate 500 is configured to overlap the top surface of horizontal plate 410.

[0069] like Figure 3 In the described embodiment, the mounting plate 500 can fix the top of the filter element 200, providing support and stability for the filter element 200. Furthermore, the overlapping fixing method makes it easier to remove the filter element 200.

[0070] In some embodiments, a spring pin 510 is provided on the top surface of the mounting plate 500. The spring pin 510 includes a pin shaft 511 with a beveled bottom end face. A vertical hole 520 is provided on the top surface of the mounting plate 500 so that the pin shaft 511 can extend into it.

[0071] The side wall of the mounting plate 500 is provided with a horizontal hole 530 that communicates with the vertical hole 520. A plug rod 540 is horizontally arranged in the horizontal hole 530, and its end face near the pin 511 is inclined.

[0072] The insertion rod 540 is also fixed with an abutment plate 541, which is slidably disposed in the horizontal hole 530, and a telescopic spring 542 fixed at one end to the abutment plate 541. The outer diameter of the telescopic spring 542 is larger than the diameter of the horizontal hole 530.

[0073] The inner wall of the vertical plate 420 is provided with a socket 421 that can communicate with the horizontal hole 530, and the end of the plug rod 540 can extend into the socket 421.

[0074] When the pin 511 is inserted into the horizontal hole 530, the telescopic spring 542 is compressed, the inclined end face of the insertion rod 540 mates with the inclined end face of the insertion rod 540, and the end of the insertion rod 540 extends into the insertion hole 421.

[0075] like Figure 3 In the embodiment shown, the spring inside the spring pin 510 is compressed. When the mounting plate 500 and the L-shaped fixing plate 400 are overlapped and fixed, as the pin 511 is inserted into the vertical hole 520, the inclined end face of the pin 511 abuts against the inclined end face of the insertion rod 540, and pushes the insertion rod 540 in the horizontal hole 530 into the insertion hole 421 until the end of the insertion rod 540 extends into the insertion hole 421.

[0076] Under the action of the spring inside the spring pin 510, the pin 511 can always maintain the state of contact with the insertion rod 540. When the pin 511 and the insertion rod 540 are fully in contact, the telescopic spring 542 is in a compressed state, which means that a force is generated between the insertion rod 540 and the pin 511, thereby improving the stability of the connection between the mounting plate 500 and the L-shaped fixing plate 400.

[0077] Through the above implementation method, the mounting plate 500 and the L-shaped fixing plate 400 can be quickly connected and disconnected, thereby enabling quick cleaning and replacement of the filter element 200 and improving efficiency.

[0078] In some embodiments, the outlet 140 of the tank 100 is connected to an outlet pipe 141, and the outlet pipe 141 is equipped with a flow meter. The flow meter is configured to detect the flow rate in the outlet pipe 141 and issue a low flow warning signal when the flow rate is less than a predetermined value.

[0079] When filter element 200 is severely clogged and the filtration efficiency is reduced, the flow rate at outlet pipe 141 will decrease. At this time, the flow meter will detect that the flow rate is too low and issue an early warning, so the staff can know that filter element 200 is severely clogged and needs to be cleaned or replaced.

[0080] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0081] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A geothermal tailwater filtration tank characterized by, include: The tank (100) has one or more inlets (130) and one or more outlets (140) on its wall. A filter element (200) is built into the tank (100) and is capable of filtering sandy geothermal tailwater that enters the tank (100) from the inlet (130). and A partition (300) is built into the tank (100) to fix the filter element (200) and is located between the liquid inlet (130) and the liquid outlet (140).

2. A geothermal tailwater filter tank according to claim 1, wherein, The partition (300) has one or more liquid inlet holes (310); The liquid inlet (310) is connected and communicates with the liquid inlet end of the filter element (200) to input sandy geothermal tailwater into the filter element (200).

3. The geothermal tailwater filter tank of claim 1, wherein, The partition (300) has one or more liquid inlet holes (310); The liquid inlet (310) is connected and communicates with the liquid inlet end of the filter element (200) to input sandy geothermal tailwater into the filter element (200).

4. A geothermal tailwater filter tank according to claim 3 wherein, The filter element (200) is a PP cotton filter element.

5. The geothermal tailwater filter tank of claim 1, wherein, The liquid inlet (130) is located below the partition (300), and the liquid outlet (140) is located above the partition (300).

6. The geothermal tailwater filter tank of claim 1, wherein, The diameter of the bottom of the tank (100) is set to gradually decrease from below the partition (300); Furthermore, a drain outlet is provided at the lowest point of the bottom of the tank (100), and the drain outlet is connected to and connected to a drain pipe (150).

7. A geothermal tailwater filter tank according to claim 1 wherein, The tank (100) includes a tank body (110), the top of which is open; The can body (100) also includes a can lid (120) capable of closing the top opening of the can body (110), the can lid (120) being detachably connected to the can body (110).

8. The geothermal tailwater filtration tank of claim 1, wherein, Geothermal tailwater filtration tanks also include: Multiple L-shaped fixing plates (400) are arranged at intervals along the circumference of the tank (100) on the inner wall of the tank (100). Each L-shaped fixing plate (400) includes a horizontal plate (410) and a vertical plate (420) extending vertically upward from the side of the horizontal plate (410) near the inner wall of the tank (100). Mounting plate (500) for fixing filter element (200), the bottom surface of the edge of mounting plate (500) is configured to overlap the top surface of horizontal plate (410).

9. A geothermal tailwater filter tank according to claim 8 wherein, The top surface of the mounting plate (500) is provided with a spring pin (510), the spring pin (510) includes a pin shaft (511) with a beveled bottom end face, and the top surface of the mounting plate (500) is provided with a vertical hole (520) into which the pin shaft (511) can be inserted. The mounting plate (500) has a horizontal hole (530) on its side wall that communicates with the vertical hole (520). A rod (540) is horizontally arranged in the horizontal hole (530), and its end face near the pin (511) is inclined. The insertion rod (540) is also fixed with an abutment plate (541), which is slidably disposed in the horizontal hole (530), and a telescopic spring (542) with one end fixed to the abutment plate (541). The outer diameter of the telescopic spring (542) is larger than the diameter of the horizontal hole (530). The vertical plate (420) has an insertion hole (421) on its inner wall that can communicate with the horizontal hole (530), and the end of the insertion rod (540) can extend into the insertion hole (421). When the pin (511) is inserted into the horizontal hole (530), the telescopic spring (542) is compressed, the inclined end face of the insertion rod (540) engages with the inclined end face of the insertion rod (540), and the end of the insertion rod (540) extends into the insertion hole (421).

10. The geothermal tailwater filtration tank of claim 1, wherein, The outlet (140) of the tank (100) is connected to an outlet pipe (141). A flow meter is provided on the outlet pipe (141). The flow meter is configured to detect the flow rate in the outlet pipe (141) and issue a low flow warning signal when the flow rate is less than a set value.

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