An easily dismountable recharge wellhead filter device

Abstract

This invention discloses an easily disassembled reinjection wellhead filtration device, relating to the field of groundwater engineering technology. It includes a filter tank, inside which are arranged a positioning ring, a filtration mechanism, and a drive mechanism for moving the filtration mechanism out of the filter tank opening. The positioning ring is fixedly mounted on the inner wall of the filter tank, the drive mechanism is fixedly mounted on the positioning ring, and the filtration mechanism is mounted on the drive mechanism. Two positioning rods are fixedly mounted on the top of the positioning ring. The filtration mechanism includes four collars, three pairs of arc-shaped contact blocks, a physical filtration layer, a biological filtration layer, and a chemical filtration layer. This invention, through the cooperation of the drive mechanism and the filtration mechanism, facilitates timely cleaning and replacement of the physical, biological, and chemical filtration layers. Furthermore, the method of moving the filter to the filter tank opening for replacement makes it easier for workers to determine whether the filter element needs replacement and is more convenient for operation. This improves the quality of reinjection water while reducing the risk of reinjection well blockage.

Description

Technical Field

[0001] This invention relates to the field of groundwater engineering technology, and more specifically to an easily disassembled reinjection wellhead filter device. Background Technology

[0002] The extensive extraction of groundwater resources has led to severe depletion, prompting an increasing number of countries worldwide to utilize recharge wells for groundwater replenishment. To prevent groundwater contamination and mitigate well blockage, tap water of relatively good quality is often used as the recharge source. However, when tap water is piped to the wellhead, it often contains numerous impurities. Failure to treat these impurities can easily contaminate the groundwater and increase the likelihood of well blockage.

[0003] However, in current projects, the delivered tap water is usually used directly for reinjection without being treated at the wellhead of the reinjection well. Alternatively, existing filtration devices are used to simply intercept impurities. The intercepted impurities remain in the filtration device, requiring people to manually clean them regularly, which increases labor intensity, is time-consuming and laborious. Furthermore, the filter screen can become clogged after prolonged use, causing many inconveniences.

[0004] To address the above issues, an easily disassembled reinjection wellhead filter device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an easily disassembled reinjection wellhead filter device to solve the above-mentioned problems.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] A recharge wellhead filtration device that is easy to disassemble includes a filter tank. Inside the filter tank are a positioning ring, a filtration mechanism, and a drive mechanism for moving the filtration mechanism out of the filter tank opening. The positioning ring is fixedly mounted on the inner wall of the filter tank, and the drive mechanism is fixedly mounted on the positioning ring. The filtration mechanism is mounted on the drive mechanism. Two positioning rods are fixedly mounted on the top of the positioning ring. The filtration mechanism includes four collars, three pairs of arc-shaped contact blocks, a physical filtration layer, a biological filtration layer, and a chemical filtration layer. The four collars are sequentially sleeved on the positioning rods. The bottommost collar is fixedly connected to the two positioning rods, and the remaining collars are axially sealed and slidably connected to the two positioning rods. All the arc-shaped contact blocks are respectively sleeved on the two positioning rods, and the three pairs of arc-shaped contact blocks are located between two adjacent collars. Each pair of arc-shaped contact blocks is symmetrically arranged, and a slot is formed between two adjacent collars. The physical filtration layer, biological filtration layer, and chemical filtration layer are sequentially inserted into the corresponding slots from top to bottom.

[0008] In a preferred embodiment of the present invention, the driving mechanism includes two airbags, an air supply pipe, and an air pump. The two airbags are symmetrically arranged on both sides of the top of the positioning ring, and the upper and lower ends of the two airbags are fixedly connected to the bottom collar and the positioning pipe, respectively. The positioning ring has a cavity inside and several connecting ports that connect to the two airbags. The air pump is installed outside the filter tank. One end of the air supply pipe is connected to the output end of the air pump, and the other end of the air supply pipe passes through the filter tank and the positioning ring in sequence and then connects to the cavity.

[0009] As a preferred embodiment of the present invention, all of the outer walls of the collars are fixedly connected with sealing rings, and all of the sealing rings abut against the inner wall of the filter tank.

[0010] As a preferred embodiment of the present invention, both positioning rods are provided with sliding grooves inside, and all sliding grooves are axially sealed and slidably connected with sliding rods. The bottom of all sliding rods is fixedly connected to the top of the positioning ring. The top of the filter tank is provided with a top cover, which is sleeved on the two positioning rods. The outer wall of the top of both positioning rods is provided with external threads and is threaded with nuts. All nuts are located above the top cover.

[0011] As a preferred embodiment of the present invention, the outer walls of the top ends of the two positioning rods are each threaded with a limiting ring for limiting the top cover. The top end of the limiting ring is flush with the opening of the filter tank, and the top cover is located at the top end of the limiting ring.

[0012] As a preferred embodiment of the present invention, each of the arc-shaped contact blocks is provided with two magnetic plates at its upper and lower ends, and each of the collars is magnetically attracted to the adjacent magnetic plates.

[0013] As a preferred embodiment of the present invention, a protective cover is connected between each of the two adjacent airbags, and the two positioning rods are respectively located inside the two protective covers.

[0014] As a preferred embodiment of the present invention, the filter tank is provided with an inlet on one side for connecting to an external water supply pipe, and the filter tank is provided with an outlet at the bottom for connecting to a reinjection well.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This invention, through the setting of a filtration mechanism, can perform physical, biological, and chemical filtration on the reinjection water source, achieving triple filtration of the reinjection water source. This achieves the purpose of filtering the reinjection water source at the wellhead, maximizing the guarantee of good water quality for the reinjection water source, effectively improving the quality of the reinjection water, and enhancing the reinjection effect. This technology can ensure that the water quality of the reinjection water source is greatly improved, achieving the goal of both protecting precious groundwater resources and significantly reducing the occurrence of reinjection well blockage.

[0017] 2. This invention, through the cooperation of the drive mechanism and the filtration mechanism, facilitates the timely cleaning and replacement of the physical filtration layer, biological filtration layer, and chemical filtration layer. The method of moving the filter to the tank opening for replacement makes it easier for staff to determine whether the filter element needs to be replaced and is also more convenient for staff to operate. By replacing the filter element, the problem of blockage caused by excessive accumulation of impurities is effectively avoided, ensuring the long-term high-flow operation of the reinjection well, improving the quality of reinjection water, and reducing the risk of blockage in the reinjection well.

[0018] 3. The present invention uses a magnetic plate to adsorb and fix two adjacent collars, thereby clamping and fixing the filter element between them. This prevents the filter element from falling out of the slot due to increased weight caused by water impact or excessive adsorption of impurities inside. Therefore, the thickness of the filter element should be greater than the height of the arc-shaped contact block. Furthermore, the collar can be moved up along the positioning rod and opened, making it easier to remove and replace the filter element. Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 This invention provides an overall structural schematic diagram of an easily disassembled reinjection wellhead filter device.

[0021] Figure 2 A cross-sectional structural diagram of the filter tank is provided for this invention. Figure 1 ;

[0022] Figure 3 Provided for the present invention Figure 2 Enlarged view of the structure at point A;

[0023] Figure 4 A cross-sectional structural diagram of the filter tank is provided for this invention. Figure 2 ;

[0024] Figure 5 Provided for the present invention Figure 3 Enlarged view of the structure at point B;

[0025] Figure 6 Provided for the present invention Figure 3 Enlarged view of the structure at point C;

[0026] Figure 7 This invention provides a schematic diagram of the connection structure between the top cover and the positioning rod;

[0027] Figure 8 This invention provides a schematic diagram of the connection structure between the drive mechanism and the filter mechanism;

[0028] Figure 9 A top sectional view of the drive mechanism is provided for this invention;

[0029] Figure 10 A partial structural schematic diagram of the driving mechanism is provided for the present invention.

[0030] The labels in the diagram represent the following:

[0031] 1. Filter tank; 2. Positioning ring; 3. Filtering mechanism; 4. Drive mechanism; 5. Positioning rod; 6. Top cover; 7. Nut; 8. Inlet; 9. Outlet;

[0032] 31. Ring; 32. Arc-shaped contact block; 33. Physical filter layer; 34. Biological filter layer; 35. Chemical filter layer; 36. Sealing ring; 37. Magnetic plate; 41. Airbag; 42. Air supply pipe; 43. Air pump; 44. Cavity; 45. Connecting port; 46. Protective cover; 51. Slide groove; 52. Slide rod; 53. Limiting ring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1 - Figure 10As shown, this invention provides an easily disassembled reinjection wellhead filtration device, including a filter tank 1. Inside the filter tank 1 are a positioning ring 2, a filtration mechanism 3, and a drive mechanism 4 for moving the filtration mechanism 3 out of the filter tank 1 opening. The positioning ring 2 is fixedly mounted on the inner wall of the filter tank 1, the drive mechanism 4 is fixedly mounted on the positioning ring 2, and the filtration mechanism 3 is mounted on the drive mechanism 4. Two positioning rods 5 are fixedly mounted on the top of the positioning ring 2. The filtration mechanism 3 includes four collars 31, three pairs of arc-shaped contact blocks 32, a physical filtration layer 33, a biological filtration layer 34, and a chemical filtration layer 35. The four collars 31 are sequentially sleeved on the positioning rods 5. The bottommost collar 31 is fixedly connected to two positioning rods 5, and the remaining collars 31 are axially sealed and slidably connected to the two positioning rods 5. All the arc-shaped contact blocks 32 are respectively sleeved on the two positioning rods 5, and the three pairs of arc-shaped contact blocks 32 are respectively located between two adjacent collars 31. Each pair of arc-shaped contact blocks 32 is symmetrically arranged, and a slot is formed between two adjacent collars 31. The physical filter layer 33, the biological filter layer 34 and the chemical filter layer 35 are inserted into the corresponding slots from top to bottom.

[0035] The filter tank 1 has an inlet 8 on one side that connects to an external water supply pipe, and an outlet 9 at the bottom that connects to a reinjection well.

[0036] Before recharge of groundwater, the inlet 8 of the filter tank 1 is connected to the external water supply pipe, and the outlet 9 is connected to the recharge well. This allows external tap water to pass through the filter mechanism 3 before entering the recharge well. Since the main factors affecting groundwater quality and recharge well blockage are physical, biological, and chemical factors, the physical filtration target, biological filtration target, and chemical filtration target are first determined. Then, corresponding filter materials are used to make physical filter layer 33, biological filter layer 34, and chemical filter layer 35, respectively, to perform physical, biological, and chemical filtration on the recharge water source, achieving triple filtration of the recharge water source. This achieves the purpose of filtering the recharge water source at the wellhead, maximizing the water quality of the recharge water source, effectively improving the quality of the recharge water, and enhancing the recharge effect. This technology can ensure that the water quality of the recharge water source is well improved, achieving the goal of both protecting precious groundwater resources and significantly reducing the occurrence of recharge well blockage.

[0037] Furthermore, to facilitate the disassembly and replacement of the physical filter layer 33, the biological filter layer 34, and the chemical filter layer 35, a drive mechanism 4 is provided. Through the cooperation of the drive mechanism 4 and the filter mechanism 3, the above-mentioned filter elements, biological filter layer 34, and chemical filter layer 35 (hereinafter collectively referred to as filter elements) can be quickly removed and replaced. The drive mechanism 4 includes two air bags 41, an air supply pipe 42, and an air pump 43. The two air bags 41 are symmetrically arranged on both sides of the top of the positioning ring 2, and the upper and lower ends of the two air bags 41 are fixedly connected to the bottom collar 31 and the positioning pipe, respectively. A cavity 44 is opened inside the positioning ring 2, and several connecting ports 45 are opened on the positioning ring 2 to connect the two air bags 41. The air pump 43 is installed outside the filter tank 1. One end of the air supply pipe 42 is connected to the output end of the air pump 43, and the other end of the air supply pipe 42 passes through the filter tank 1 and the positioning ring 2 in sequence and then connects to the cavity 44.

[0038] All collars 31 are fixedly connected to the outer wall with sealing rings 36, and all sealing rings 36 abut against the inner wall of the filter tank 1. This improves the sealing performance and prevents water entering the filter tank 1 from being discharged without being purified by the filtration mechanism 3.

[0039] Both positioning rods 5 have internal grooves 51, and each groove 51 is axially sealed and slidably connected to a sliding rod 52. The bottom of each sliding rod 52 is fixedly connected to the top of the positioning ring 2. The top of the filter tank 1 is provided with a top cover 6, which is fitted onto the two positioning rods 5. The outer wall of the top of each positioning rod 5 is provided with external threads, and nuts 7 are threadedly connected to it. All nuts 7 are located above the top cover 6.

[0040] Both positioning rods 5 have threaded connection on their outer walls to limit the top cover 6. The top of the limiting ring 53 is flush with the opening of the filter tank 1, and the top cover 6 is located at the top of the limiting ring 53.

[0041] The air pump 43 is activated, and it delivers external gas through the air supply pipe 42 into the cavity 44 inside the positioning ring 2. The gas then flows through several connecting ports 45 to the two airbags 41, causing them to inflate. As the airbags 41 inflate, they push the collars 31, which are fixedly connected to the airbags 41, to move upwards along the inner wall of the filter tank 1. The upward movement of the bottommost collar 31 drives the other collars 31 located above it, as well as the physical objects placed between adjacent collars 31. As the filter layer 33, biological filter layer 34, and chemical filter layer 35 move upwards, the bottommost collar 31 is fixedly connected to the two positioning rods 5. Therefore, when the collar 31 moves upwards, it can drive the positioning rods 5 fixed to it to move and rise together. When the positioning rods 5 move upwards, they can slide axially and seal along the sliding outer wall. When the two positioning rods 5 move upwards, they first drive the top cover 6 fixed at its top to move upwards and disengage from the opening of the filter tank 1, thereby opening the filter tank 1. At this time, the filtration status of the filtration mechanism 3 can be observed through the opening of the filter tank 1. In addition, determine whether replacement or removal for cleaning is necessary. If replacement or removal is required, continue to push the collar 31 (i.e., positioning rod 5) upward through the airbag 41 until the collar 31 is exposed at the opening of the filter tank 1. At this time, the staff can pull out the physical filter layer 33, biological filter layer 34, and chemical filter layer 35 from the slots respectively, or remove them individually, and insert new physical filter layer 33, biological filter layer 34, and chemical filter layer 35 into the slots. By replacing the filter elements, the good filtration effect can still be achieved after a long time. The cooperation between the drive mechanism 4 and the filter mechanism 3 makes it easy to clean and replace the physical filter layer 33, biological filter layer 34, and chemical filter layer 35 in a timely manner. The method of moving to the opening of the filter tank 1 for replacement makes it easier for the staff to determine whether the filter elements need to be replaced and is also more convenient for the staff to operate. By replacing the filter elements, the problem of clogging caused by excessive accumulation of impurities is effectively avoided, ensuring the long-term high-flow operation of the reinjection well, improving the quality of reinjection water, and reducing the risk of clogging of the reinjection well.

[0042] The nut 7 and the limiting ring 53 can limit and fix the position of the top cover 6, and also facilitate the opening or adjustment of the top cover 6.

[0043] Two magnetic plates 37 are provided at both the upper and lower ends of all the arc-shaped contact blocks 32, and all the collars 31 are magnetically attracted to the adjacent magnetic plates 37.

[0044] By setting the magnetic plate 37, the two adjacent collars 31 can be adsorbed and fixed, thereby clamping and fixing the filter element between them. This prevents the filter element from falling out of the slot due to increased weight caused by water impact or excessive adsorption of impurities inside. Therefore, the thickness of the filter element should be greater than the height of the arc-shaped contact block 32. Furthermore, the collar 31 can be moved up along the positioning rod 5 and opened, making it easier to remove and replace the filter element.

[0045] Each pair of adjacent airbags 41 is connected to a protective cover 46, and two positioning rods 5 are located inside the two protective covers 46 respectively. These protect the connection points between the two positioning rods 5 and the two sliding rods 52.

[0046] The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An easily disassembled reinjection wellhead filtration device, comprising a filter tank (1), characterized in that, The filter tank (1) is equipped with a positioning ring (2), a filter mechanism (3), and a drive mechanism (4) for driving the filter mechanism (3) to move out of the filter tank (1). The positioning ring (2) is fixedly installed on the inner wall of the filter tank (1). The drive mechanism (4) is fixedly installed on the positioning ring (2). The filter mechanism (3) is installed on the drive mechanism (4). Two positioning rods (5) are fixedly installed on the top of the positioning ring (2). Each of the two positioning rods (5) has a groove (51) inside. All the grooves (51) are axially sealed and slidably connected with a slide rod (52). The bottom of all the slide rods (52) is fixedly connected to the top of the positioning ring (2). The filter mechanism (3) includes four collars (31) and three pairs of arc-shaped abutments. Block (32), physical filter layer (33), biological filter layer (34) and chemical filter layer (35), four collars (31) are sequentially fitted on the positioning rod (5), the collar (31) at the bottom is fixedly connected to the two positioning rods (5), and the remaining collars (31) are axially sealed and slidably connected to the two positioning rods (5). All the arc-shaped contact blocks (32) are respectively fitted on the two positioning rods (5), and the three pairs of arc-shaped contact blocks (32) are respectively located between two adjacent collars (31). Each pair of arc-shaped contact blocks (32) is symmetrically arranged, and a slot is formed between two adjacent collars (31). The physical filter layer (33), biological filter layer (34) and chemical filter layer (35) are sequentially inserted into the corresponding slots from top to bottom. The drive mechanism (4) includes two airbags (41), an air supply pipe (42), and an air pump (43). The two airbags (41) are symmetrically arranged on both sides of the top of the positioning ring (2), and the upper and lower ends of the two airbags (41) are fixedly connected to the bottom collar (31) and the positioning pipe, respectively. The positioning ring (2) has a cavity (44) inside, and several connecting ports (45) are opened on the positioning ring (2) to connect the two airbags (41) respectively. The air pump (43) is installed outside the filter tank (1). One end of the air supply pipe (42) is connected to the output end of the air pump (43), and the other end of the air supply pipe (42) passes through the filter tank (1) and the positioning ring (2) in sequence and then connects to the cavity (44).

2. The easily disassembled reinjection wellhead filter device according to claim 1, characterized in that: All of the collars (31) are fixedly connected to the outer wall of a sealing ring (36), and all of the sealing rings (36) are in contact with the inner wall of the filter tank (1).

3. The easily disassembled reinjection wellhead filter device according to claim 1, characterized in that: The filter tank (1) is provided with a top cover (6), which is fitted on two positioning rods (5). The outer wall of the top of each of the two positioning rods (5) is provided with external threads and is threaded with nuts (7). All the nuts (7) are located above the top cover (6).

4. The easily disassembled reinjection wellhead filter device according to claim 1, characterized in that: Both of the positioning rods (5) have threaded connection on their outer walls to limit the top cover (6). The top of the limiting ring (53) is flush with the opening of the filter tank (1), and the top cover (6) is located at the top of the limiting ring (53).

5. The easily detachable reinjection wellhead filter device according to claim 1, characterized in that: Two magnetic plates (37) are provided at both the upper and lower ends of all the arc-shaped contact blocks (32), and all the collars (31) are magnetically attracted to the adjacent magnetic plates (37).

6. The easily disassembled reinjection wellhead filter device according to claim 1, characterized in that: Each of the two adjacent airbags (41) is connected to a protective cover (46), and the two positioning rods (5) are located inside the two protective covers (46).

7. The easily detachable reinjection wellhead filter device according to claim 1, characterized in that: The filter tank (1) has an inlet (8) on one side that connects to an external water supply pipe, and an outlet (9) at the bottom of the filter tank (1) that connects to a recharge well.

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