Reverse osmosis concentrated water recovery device

By designing a reverse osmosis concentrated water recovery device with a switching mechanism, the concentrated water discharge problem caused by no backup equipment during equipment cleaning is solved, and efficient concentrated water recovery and reduced operating costs are achieved.

CN222758030UActive Publication Date: 2025-04-15NINGXIA BAOFENG ENERGY GROUP CO LTD
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Patent Information

Application Number
CN202421513159.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-04-15
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

During the chemical cleaning or inspection and maintenance of the equipment, the existing reverse osmosis water recovery device has no spare equipment, resulting in the complete discharge of raw water reverse osmosis water into the clean sewer network, which increases the water treatment volume and operating cost of the park water treatment device, and has a low recovery rate.

Method used

A reverse osmosis water recovery device is designed. When the switching mechanism is used to clean the machine inside a single recovery device, it blocks and seals the original reverse osmosis pipeline and the new reverse osmosis pipeline, so that the other recovery device is still working, thereby improving the recycling efficiency.

Benefits of technology

It is realized that when a single recycling device is cleaned, the other recycling device is still in operation, which improves the recycling efficiency of the concentrated water reverse osmosis recovery system and reduces operating costs.

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Abstract

The utility model relates to the technical field of reverse osmosis concentrated water recovery devices, in particular to a reverse osmosis concentrated water recovery device which comprises a water inlet main pipe, an original reverse osmosis pipeline is fixedly connected to one end of one side of the water inlet main pipe, and a new reverse osmosis pipeline is fixedly connected to one end, far away from the original reverse osmosis pipeline, of one side of the water inlet main pipe. A recycling mechanism is fixedly connected to the sides, away from the water inlet main pipe, of the original reverse osmosis pipeline and the new reverse osmosis pipeline, and a switching mechanism is fixedly connected to the top end of the joint of the water inlet main pipe with the original reverse osmosis pipeline and the new reverse osmosis pipeline and penetrates into the water inlet main pipe. According to the reverse osmosis concentrated water recovery device, internal parts of the recovery mechanism and the switching mechanism are matched with each other, so that when the interior of a single reverse osmosis concentrated water recovery device needs to be shut down and cleaned, an original reverse osmosis pipeline and a new reverse osmosis pipeline are blocked and sealed, and the other reverse osmosis concentrated water recovery device still works; therefore, the recovery efficiency of the concentrated water reverse osmosis recovery system is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis concentrated water recovery devices, in particular to a reverse osmosis concentrated water recovery device. Background Art

[0002] With the development of reverse osmosis technology, this technology has been widely used in metallurgy, chemical industry and other fields, but it has also brought about sewage problems. Reverse osmosis treatment technology will produce more concentrated water when used. There are more pollutants in these concentrated waters. If they are discharged directly, it will not only pollute the environment, but also cause waste of water resources. Therefore, existing enterprises usually use devices to recycle the concentrated water to recycle the wastewater.

[0003] During the chemical cleaning or inspection and maintenance of the existing concentrate reverse osmosis equipment, there is no spare concentrate reverse osmosis equipment, so all the raw water reverse osmosis concentrate needs to be discharged into the clean sewer network, which greatly increases the water treatment volume and operating costs of the park's water treatment equipment. In addition, the concentrate reverse osmosis is in continuous operation, which greatly shortens the cleaning cycle inside the concentrate reverse osmosis equipment. Frequent cleaning is required to improve the equipment's processing efficiency, resulting in a low recovery rate of the concentrate reverse osmosis recovery system.

[0004] Therefore, it is necessary for us to propose a reverse osmosis concentrated water recovery device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a reverse osmosis concentrated water recovery device. By means of the mutual cooperation between the internal parts of a switching mechanism, when a single reverse osmosis concentrated water recovery device needs to be shut down for cleaning, a barrier sealing operation can be performed between the original reverse osmosis pipeline and the new reverse osmosis pipeline, so that the other reverse osmosis concentrated water recovery device is still working, thereby improving the recovery efficiency of the concentrated water reverse osmosis recovery system, so as to solve the problem in the prior art that during the chemical cleaning or inspection and maintenance of the concentrated water reverse osmosis equipment, there is no spare concentrated water reverse osmosis equipment, resulting in the need to discharge all the raw water reverse osmosis concentrated water into the clean sewer network, which greatly increases the water treatment volume and operating cost of the park water treatment device.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reverse osmosis concentrated water recovery device, comprising an inlet main pipe, one end of the water inlet main pipe is connected and fixed to an original reverse osmosis pipeline, one end of the water inlet main pipe away from the original reverse osmosis pipeline is connected and fixed to a new reverse osmosis pipeline, the original reverse osmosis pipeline and the new reverse osmosis pipeline are connected and fixed to a recovery mechanism on the side away from the inlet main pipe, and a switching mechanism is connected and fixed to the top of the connection between the water inlet main pipe and the original reverse osmosis pipeline and the new reverse osmosis pipeline, and passes through the interior of the water inlet main pipe and the original reverse osmosis pipeline.

[0007] Preferably, the recovery mechanism includes an old reverse osmosis filter, which is connected and fixed to a side of the original reverse osmosis pipeline away from the water inlet main pipe, and a new reverse osmosis filter is connected and fixed to a side of the new reverse osmosis pipeline away from the water inlet main pipe and is located at one end of the old reverse osmosis filter, and a common pipeline is connected and fixed to a side of the old reverse osmosis filter and the new reverse osmosis filter away from the original reverse osmosis pipeline, a main reverse osmosis high-pressure pump is connected and fixed to a side of the common pipeline away from the new reverse osmosis filter, a support frame is installed and fixed to a side of the main reverse osmosis high-pressure pump away from the common pipeline, a reverse osmosis concentrated water recovery module is connected and fixed to the inside of the support frame and is connected to a side of the main reverse osmosis high-pressure pump, and a secondary reverse osmosis high-pressure pump is connected to a side of the reverse osmosis concentrated water recovery module away from the main reverse osmosis high-pressure pump and is located on a side of the support frame away from the main reverse osmosis high-pressure pump.

[0008] Preferably, the switching mechanism includes a connecting column, which is connected to the top of the water inlet mother pipe, and the bottom end of the connecting column is connected and fixed with a connecting shaft, which passes through the connecting column to the inside of the water inlet mother pipe, and the bottom end of the connecting shaft is connected and fixed with a sealing ball, and is rotatably connected to the inside of the water inlet mother pipe, and the top of the connecting column is connected and fixed with a swivel, and the bottom end of the connecting column is connected and fixed with a plurality of limit columns, which pass through the inside of the water inlet mother pipe and are sleeved with the outer wall of the connecting shaft, the interior of the connecting column is slidably connected with a limit plate, and is connected and fixed to the top of the connecting shaft, the bottom end of the limit plate is connected and fixed with a contraction spring, and is sleeved with the outer wall of the connecting shaft, and both sides of the connecting shaft are connected and fixed with connecting blocks, which are slidably connected to the inside of the connecting column and are located on one side of the contraction spring.

[0009] Preferably, the main reverse osmosis high-pressure pump, the auxiliary reverse osmosis high-pressure pump and the reverse osmosis concentrated water recovery module are interconnected and fixed via a plurality of common pipelines.

[0010] Preferably, the new reverse osmosis pipeline has a smaller caliber than the original reverse osmosis pipeline, and a butterfly valve is installed on one side of the common pipeline close to the old reverse osmosis filter and the new reverse osmosis filter.

[0011] Preferably, the connecting shaft is rotatably connected to the water inlet main pipe via a ball bearing, and a sealing groove matching the sealing ball is provided at the connection between the original reverse osmosis pipeline and the water inlet main pipe.

[0012] Preferably, a limiting groove matching with the limiting column is formed at the top of the water inlet main pipe, and a connecting groove matching with the connecting block is formed inside the connecting column.

[0013] Preferably, a movable groove matching the limiting plate is provided inside the connecting column, and a spring groove matching the contraction spring is provided inside the connecting column.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. A new reverse osmosis pipe is connected and fixed on one side of the water inlet main pipe, so that the concentrated water can be diverted to the original reverse osmosis pipe and the new reverse osmosis pipe through the water inlet main pipe, so that the concentrated water flows into the old reverse osmosis filter and the new reverse osmosis filter through the original reverse osmosis pipe and the new reverse osmosis pipe respectively for preliminary filtration operation, and flows into the main reverse osmosis high-pressure pump through the common pipe, and flows into the reverse osmosis concentrated water recovery module on the support frame under the pressure of the main reverse osmosis high-pressure pump, completing the filtration and recovery operation of the concentrated water, and the recovered and filtered concentrated water flows into the next process through the auxiliary reverse osmosis high-pressure pump for collection, so as to improve the treatment efficiency of the concentrated water recovery device;

[0016] 2. By lifting the swivel, the swivel drives the connecting column to squeeze the contraction spring and move it, so that the connecting column moves and drives the limiting column at the bottom to move out from the top of the connection between the water inlet main pipe and the original reverse osmosis pipeline and the new reverse osmosis pipeline, and the limiting operation on the connecting column is released. At the same time, the connecting column moves so that the internal connecting groove and the connecting block are connected to each other, and then the swivel is rotated. The rotation of the swivel drives the connecting column to rotate, and the rotation of the connecting column drives the connecting shaft to rotate through the connecting block. The rotation of the connecting shaft drives the sealing ball to rotate, so that the sealing ball rotates to perform a sealing isolation operation between the water inlet main pipe that needs to be isolated and the original reverse osmosis pipeline and the new reverse osmosis pipeline, so that the concentrated water in the water inlet main pipe can only flow into one of the original reverse osmosis pipeline or the new reverse osmosis pipeline. When the single reverse osmosis concentrated water recovery device is cleaned, the concentrated water recovery system is still in working condition, thereby improving the recovery efficiency of the concentrated water reverse osmosis recovery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the water inlet main pipe of the utility model;

[0020] Figure 3 It is a schematic diagram of the exploded cross-section structure of the water inlet main pipe and the connecting column of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting column of the utility model;

[0022] Figure 5 For the utility model Figure 4 The enlarged structural diagram at A in the middle;

[0023] Figure 6 This is a system control flow chart of the utility model.

[0024] Description of reference numerals:

[0025] 1. Water inlet main pipe; 101. Original reverse osmosis pipeline; 102. New reverse osmosis pipeline; 2. Recovery mechanism; 201. Old reverse osmosis filter; 202. New reverse osmosis filter; 203. Universal pipeline; 204. Main reverse osmosis high-pressure pump; 205. Support frame; 206. Reverse osmosis concentrated water recovery module; 207. Auxiliary reverse osmosis high-pressure pump; 3. Switching mechanism; 301. Connecting column; 302. Connecting shaft; 303. Sealing ball; 304. Swivel; 305. Limit plate; 306. Limit column; 307. Contraction spring; 308. Connecting block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5 A reverse osmosis concentrated water recovery device shown in the figure comprises an inlet main pipe 1, one end of one side of the inlet main pipe 1 is connected and fixed with an original reverse osmosis pipeline 101, one end of one side of the inlet main pipe 1 away from the original reverse osmosis pipeline 101 is connected and fixed with a new reverse osmosis pipeline 102, a recovery mechanism 2 is connected and fixed to the sides of the original reverse osmosis pipeline 101 and the new reverse osmosis pipeline 102 away from the inlet main pipe 1, and a switching mechanism 3 is connected and fixed to the top of the connection between the inlet main pipe 1 and the original reverse osmosis pipeline 101 and the new reverse osmosis pipeline 102, and penetrates into the inlet main pipe 1 and the original reverse osmosis pipeline 101. Through the mutual cooperation between the internal parts of the recovery mechanism 2, the processing efficiency of the concentrated water reverse osmosis recovery system can be improved. At the same time, through the mutual cooperation between the internal parts of the switching mechanism 3, when the interior of a single reverse osmosis concentrated water recovery device needs to be shut down for cleaning, the original reverse osmosis pipeline 101 and the new reverse osmosis pipeline 102 can be blocked and sealed, so that the other reverse osmosis concentrated water recovery device is still working, thereby improving the recovery efficiency of the concentrated water reverse osmosis recovery system.

[0028] Refer to the instruction manual Figure 1-5The recovery mechanism 2 includes an old reverse osmosis filter 201, which is connected and fixed to the side of the original reverse osmosis pipeline 101 away from the water inlet main pipe 1, and the new reverse osmosis pipeline 102 is connected and fixed to the side away from the water inlet main pipe 1. The new reverse osmosis filter 202 is located at one end of the old reverse osmosis filter 201, and the old reverse osmosis filter 201 and the new reverse osmosis filter 202 are connected and fixed to the side away from the original reverse osmosis pipeline 101. The side of the universal pipeline 203 away from the new reverse osmosis filter 202 is connected and fixed to the main reverse osmosis high pressure Pump 204, a support frame 205 is fixedly installed on the side of the main reverse osmosis high-pressure pump 204 away from the universal pipeline 203, a reverse osmosis concentrated water recovery module 206 is fixedly connected inside the support frame 205, and is connected to one side of the main reverse osmosis high-pressure pump 204, a secondary reverse osmosis high-pressure pump 207 is connected to the side of the reverse osmosis concentrated water recovery module 206 away from the main reverse osmosis high-pressure pump 204, and is located on the side of the support frame 205 away from the main reverse osmosis high-pressure pump 204, and the processing efficiency of the concentrated water reverse osmosis recovery system can be improved through the mutual cooperation between the internal parts of the recovery mechanism 2.

[0029] Refer to the instruction manual Figure 1-5 The switching mechanism 3 includes a connecting column 301, which is connected to the top of the water inlet mother pipe 1. The bottom end of the connecting column 301 is connected and fixed with a connecting shaft 302, which passes through the connecting column 301 to the inside of the water inlet mother pipe 1. The bottom end of the connecting shaft 302 is connected and fixed with a sealing ball 303, and is rotatably connected to the inside of the water inlet mother pipe 1. The top of the connecting column 301 is connected and fixed with a swivel 304. The bottom end of the connecting column 301 is connected and fixed with a plurality of limit columns 306, which pass through the inside of the water inlet mother pipe 1 and are sleeved with the outer wall of the connecting shaft 302. The inside of the connecting column 301 is slidably connected with a limit plate 305, and is connected and fixed to the connecting The top end of the connecting shaft 302 and the bottom end of the limit plate 305 are connected and fixed with a contraction spring 307, and are sleeved with the outer wall of the connecting shaft 302. Connecting blocks 308 are connected and fixed on both sides of the connecting shaft 302, and are slidably connected to the inside of the connecting column 301 and are located on one side of the contraction spring 307. By cooperating with each other between the internal parts of the switching mechanism 3, when a single reverse osmosis concentrated water recovery device needs to be shut down for cleaning, a blocking and sealing operation can be performed between the original reverse osmosis pipeline 101 and the new reverse osmosis pipeline 102, so that the other reverse osmosis concentrated water recovery device is still in operation, thereby improving the recovery efficiency of the concentrated water reverse osmosis recovery system.

[0030] Refer to the instruction manual Figure 1-5The main reverse osmosis high-pressure pump 204, the auxiliary reverse osmosis high-pressure pump 207 and the reverse osmosis concentrated water recovery module 206 are interconnected and fixed through multiple universal pipes 203. The diameter of the new reverse osmosis pipe 102 is smaller than that of the original reverse osmosis pipe 101. A butterfly valve is installed on one side of the universal pipe 203 close to the old reverse osmosis filter 201 and the new reverse osmosis filter 202. The main reverse osmosis high-pressure pump 204, the auxiliary reverse osmosis high-pressure pump 207 and the reverse osmosis concentrated water recovery module 206 are interconnected and fixed through multiple universal pipes 203, so that concentrated water can flow inside the reverse osmosis concentrated water recovery module 206 through the main reverse osmosis high-pressure pump 204 and the auxiliary reverse osmosis high-pressure pump 207.

[0031] Refer to the instruction manual Figure 1-5 The diameter of the new reverse osmosis pipeline 102 is smaller than that of the original reverse osmosis pipeline 101. A butterfly valve is installed on one side of the universal pipeline 203 close to the old reverse osmosis filter 201 and the new reverse osmosis filter 202. The butterfly valve is installed on one side of the universal pipeline 203 close to the old reverse osmosis filter 201 and the new reverse osmosis filter 202, so that the concentrated water flow rate inside the universal pipeline 203 can be controlled.

[0032] Refer to the instruction manual Figure 1-5 The connecting shaft 302 is rotatably connected to the water inlet main pipe 1 through a ball bearing, and a sealing groove matching the sealing ball 303 is opened at the connection between the original reverse osmosis pipeline 101 and the water inlet main pipe 1. A sealing groove matching the sealing ball 303 is opened at the connection between the original reverse osmosis pipeline 101 and the water inlet main pipe 1, so that the sealing ball 303 can seal and isolate the connection between the original reverse osmosis pipeline 101 and the water inlet main pipe 1.

[0033] Refer to the instruction manual Figure 1-5 A limiting groove matching the limiting column 306 is provided at the top of the water inlet mother pipe 1, and a connecting groove matching the connecting block 308 is provided inside the connecting column 301. The connecting groove matching the connecting block 308 is provided inside the connecting column 301, so that the connecting column 301 can rotate through the connecting block 308 to drive the connecting shaft 302 to rotate.

[0034] Refer to the instruction manual Figure 1-5 A movable groove matching the limit plate 305 is opened inside the connecting column 301, and a spring groove matching the contraction spring 307 is opened inside the connecting column 301. The movable groove opened inside the connecting column 301 makes it easy for the limit plate 305 to slide inside the connecting column 301 while the connecting column 301 moves.

[0035] How this utility works:

[0036] Refer to the instruction manual Figure 1-5, a new reverse osmosis pipe 102 is connected and fixed at one side of the water inlet main pipe 1, so that the concentrated water can be diverted to the original reverse osmosis pipe 101 and the new reverse osmosis pipe 102 through the water inlet main pipe 1, so that the concentrated water flows into the old reverse osmosis filter 201 and the new reverse osmosis filter 202 through the original reverse osmosis pipe 101 and the new reverse osmosis pipe 102 respectively for preliminary filtering operation, and flows into the main reverse osmosis high-pressure pump 204 through the universal pipe 203, and flows into the reverse osmosis concentrated water recovery module 206 on the support frame 205 under the pressure of the main reverse osmosis high-pressure pump 204, completing the filtering and recovery operation of the concentrated water, and the recovered and filtered concentrated water flows into the next process through the auxiliary reverse osmosis high-pressure pump 207 for collection, so as to improve the processing efficiency of the concentrated water recovery device;

[0037] Refer to the instruction manual Figure 1-5 By lifting the rotating ring 304, the rotating ring 304 drives the connecting column 301 to squeeze the contraction spring 307 to contract and move, so that the connecting column 301 moves and drives the limiting column 306 at the bottom to move out from the top of the connection between the water inlet mother pipe 1 and the original reverse osmosis pipeline 101 and the new reverse osmosis pipeline 102, and the limiting operation on the connecting column 301 is released. At the same time, the connecting column 301 moves so that the connecting groove inside it is connected to the connecting block 308. Then the rotating ring 304 is rotated, and the rotating ring 304 rotates to drive the connecting column 301 to rotate. The connecting column 301 rotates through The connecting block 308 drives the connecting shaft 302 to rotate, and the connecting shaft 302 rotates with the sealing ball 303, so that the sealing ball 303 rotates to perform a sealing isolation operation between the water inlet main pipe 1 that needs to be isolated and the original reverse osmosis pipeline 101 and the new reverse osmosis pipeline 102, so that the concentrated water in the water inlet main pipe 1 can only flow into one of the original reverse osmosis pipeline 101 or the new reverse osmosis pipeline 102. When the single reverse osmosis concentrated water recovery device is cleaned, the concentrated water recovery system is still in working condition, thereby improving the recovery efficiency of the concentrated water reverse osmosis recovery system.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reverse osmosis concentrated water recovery device, comprising a water inlet main pipe (1), characterized in that: One end of one side of the water inlet main pipe (1) is connected and fixed to an original reverse osmosis pipe (101); one end of the side of the water inlet main pipe (1) away from the original reverse osmosis pipe (101) is connected and fixed to a new reverse osmosis pipe (102); the sides of the original reverse osmosis pipe (101) and the new reverse osmosis pipe (102) away from the water inlet main pipe (1) are connected and fixed to a recovery mechanism (2); the top of the connection between the water inlet main pipe (1) and the original reverse osmosis pipe (101) and the new reverse osmosis pipe (102) is connected and fixed to a switching mechanism (3), which penetrates into the interior of the water inlet main pipe (1) and the original reverse osmosis pipe (101).

2. A reverse osmosis concentrated water recovery device according to claim 1, characterized in that: The recovery mechanism (2) comprises an old reverse osmosis filter (201), the old reverse osmosis filter (201) being connected and fixed to a side of the original reverse osmosis pipeline (101) away from the water inlet main pipe (1), the new reverse osmosis pipeline (102) being connected and fixed to a side of the new reverse osmosis pipeline (102) away from the water inlet main pipe (1) and being located at one end of the old reverse osmosis filter (201), the old reverse osmosis filter (201) and the new reverse osmosis filter (202) being connected and fixed to a common pipeline (203) on a side away from the original reverse osmosis pipeline (101), the common pipeline (203) being away from the new reverse osmosis pipeline (102) and being located at one end of the old reverse osmosis filter (201), A main reverse osmosis high-pressure pump (204) is connected and fixed to one side of the osmosis filter (202); a support frame (205) is installed and fixed to the side of the main reverse osmosis high-pressure pump (204) away from the universal pipeline (203); a reverse osmosis concentrated water recovery module (206) is connected and fixed inside the support frame (205) and is connected to one side of the main reverse osmosis high-pressure pump (204); a secondary reverse osmosis high-pressure pump (207) is connected to the side of the reverse osmosis concentrated water recovery module (206) away from the main reverse osmosis high-pressure pump (204) and is located on the side of the support frame (205) away from the main reverse osmosis high-pressure pump (204).

3. A reverse osmosis concentrated water recovery device according to claim 1, characterized in that: The switching mechanism (3) comprises a connecting column (301), the connecting column (301) being connected to the top of the water inlet mother pipe (1), the bottom end of the connecting column (301) being connected and fixed with a connecting shaft (302) which penetrates the connecting column (301) to the inside of the water inlet mother pipe (1), the bottom end of the connecting shaft (302) being connected and fixed with a sealing ball (303) which is rotatably connected to the inside of the water inlet mother pipe (1), the top end of the connecting column (301) being connected and fixed with a swivel (304), and the bottom end of the connecting column (301) being connected and fixed with a plurality of limit The connecting column (306) is connected to the inside of the water inlet main pipe (1) and is sleeved with the outer wall of the connecting shaft (302). The inside of the connecting column (301) is slidably connected to the limiting plate (305) and is connected and fixed to the top of the connecting shaft (302). The bottom end of the limiting plate (305) is connected and fixed with a contraction spring (307) and is sleeved with the outer wall of the connecting shaft (302). The two sides of the connecting shaft (302) are connected and fixed with connecting blocks (308), which are slidably connected to the inside of the connecting column (301) and are located on one side of the contraction spring (307).

4. A reverse osmosis concentrated water recovery device according to claim 2, characterized in that: The main reverse osmosis high-pressure pump (204), the auxiliary reverse osmosis high-pressure pump (207) and the reverse osmosis concentrated water recovery module (206) are interconnected and fixed via a plurality of common pipes (203).

5. A reverse osmosis concentrated water recovery device according to claim 2, characterized in that: The new reverse osmosis pipeline (102) has a smaller caliber than the original reverse osmosis pipeline (101), and a butterfly valve is installed on one side of the common pipeline (203) close to the old reverse osmosis filter (201) and the new reverse osmosis filter (202).

6. A reverse osmosis concentrated water recovery device according to claim 3, characterized in that: The connecting shaft (302) is rotatably connected to the water inlet main pipe (1) via a ball bearing, and a sealing groove matching the sealing ball (303) is provided at the connection between the original reverse osmosis pipeline (101) and the water inlet main pipe (1).

7. A reverse osmosis concentrated water recovery device according to claim 3, characterized in that: A limiting groove matching the limiting column (306) is provided at the top end of the water inlet main pipe (1), and a connecting groove matching the connecting block (308) is provided inside the connecting column (301).

8. A reverse osmosis concentrated water recovery device according to claim 3, characterized in that: A movable groove matching the limiting plate (305) is provided inside the connecting column (301), and a spring groove matching the contraction spring (307) is provided inside the connecting column (301).