Subsequent reclaimed water recycling device for seawater desalination

Abstract

The utility model discloses a seawater desalination follow-up reclaimed water reutilization device, which belongs to the technical field of reclaimed water reutilization and comprises a recovery device, the recovery device is connected with a green belt pipeline and a tree irrigation pipeline and comprises a water tank positioned on the right side, and a filter tank I and a filter tank II which are symmetrically distributed front and back are integrally formed on the left side of the water tank. A secondary strong brine reservoir and a post-mineralization backwashing water reservoir are integrally formed on the left sides of the filter tank I and the filter tank II; the filter tank I is communicated with the secondary strong brine reservoir through a pipeline; the filter tank II is communicated with the post-mineralization backwashing water reservoir through a pipeline; a second-stage strong brine inlet pipe and a post-mineralization backwashing water inlet pipe are respectively arranged above the filter tank I and the filter tank II, and the first connecting pipe and the second connecting pipe are used for communicating the second-stage strong brine reservoir / post-mineralization backwashing water reservoir with the water tank. According to the reclaimed water recycling device, reclaimed water is recycled, water resources are saved, and waste of the water resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of reclaimed water reuse, in particular to a device for reusing reclaimed water after seawater desalination. Background Art

[0002] Reclaimed water is generated during the process of seawater desalination, generally referring to secondary concentrated water and post-mineralization backwash water. Among them, secondary concentrated water is the concentrated water after a part of the first-stage produced water enters the second-stage reverse osmosis in reverse osmosis. Although the conductivity of the secondary concentrated water is higher than that of the secondary produced water, it is much lower than the conductivity of the first-stage influent water and can be reused; post-mineralization backwash water refers to the impurities in the mineralization tank increasing after long-term operation of post-mineralization or adding new calcium carbonate filter media. In order to maintain the normal operation and treatment effect of the mineralization system, prevent filter media blockage, and ensure that the effluent quality meets the requirements, it is necessary to backwash the filter bed, and these backwash waters can also be reused. Based on this, the utility model proposes a device for reusing reclaimed water after seawater desalination, which recovers and reuses secondary concentrated brine and post-mineralization backwash water to save resources. Content of the Utility Model

[0003] The purpose of the utility model is to provide a device for reusing reclaimed water after seawater desalination to solve the above-mentioned problems.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A device for reusing reclaimed water after seawater desalination of the utility model includes a recovery device. The recovery device is connected to a green belt pipeline and a tree irrigation pipeline. The recovery device includes a water tank located on the right side. A first filter tank and a second filter tank which are symmetrically distributed front and back are integrally formed on the left side of the water tank. A secondary concentrated brine reservoir and a post-mineralization backwash water reservoir are integrally formed on the left side of the first filter tank and the second filter tank; the first filter tank and the secondary concentrated brine reservoir and the second filter tank and the post-mineralization backwash water reservoir are connected together through pipelines; a secondary concentrated brine inlet pipe and a post-mineralization backwash water inlet pipe are respectively arranged above the first filter tank and the second filter tank. Overflow ports are respectively arranged on the upper parts of the side walls of the secondary concentrated brine reservoir and the post-mineralization backwash water reservoir. Water receiving buckets communicated with the overflow ports are respectively arranged on the outer side walls of the secondary concentrated brine reservoir and the post-mineralization backwash water reservoir. The bottom of the water receiving bucket is communicated with the water tank through an overflow pipe; a first connecting pipe and a second connecting pipe for communicating the secondary concentrated brine reservoir / post-mineralization backwash water reservoir with the water tank are parallelly distributed below the overflow pipe. The first connecting pipe is located above the second connecting pipe; a sewage discharge port, a first water outlet pipe and a second water outlet pipe are arranged at the bottom of the water tank. The first water outlet pipe and the second water outlet pipe are respectively connected to the green belt pipeline and the tree irrigation pipeline.

[0006] Further, filter meshes for filtering particulate matter are provided in both the first filter tank and the second filter tank.

[0007] Further, convex platforms are provided at the bottoms of both the secondary concentrated brine storage tank and the post-mineralization backwash water storage tank.

[0008] Further, the green belt pipeline is connected to a number of first branch pipelines through a tee pipe. The first branch pipelines are vertically distributed, and swing arm nozzles are provided at the tops of the first branch pipelines.

[0009] Further, the tree irrigation pipeline is connected to a number of second branch pipelines through a tee pipe. The second branch pipelines are vertically distributed, and annular drip pipes are connected to the tops of the second branch pipelines.

[0010] Further, the annular drip pipe includes an annular pipe surrounding the outer periphery of the tree. The annular pipe is connected to a bent pipe through a T-shaped joint, and the other end of the bent pipe is connected to the second branch pipeline; a number of small holes for drip irrigation are provided on the annular pipe.

[0011] Further, a number of pipeline brackets are symmetrically provided at the bottom of the bent pipe.

[0012] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0013] The subsequent reclaimed water reuse device for seawater desalination of the present utility model separately recovers the secondary concentrated brine and the post-mineralization backwash water into different storage tanks, and filters them through the filter tank during recovery. Then, the water in the storage tanks is sent to greening water for irrigation and spraying of greening areas such as green belts and trees in the industrial park, realizing the recycling and reuse of reclaimed water, saving water resources, and avoiding waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below in conjunction with the drawings.

[0015] Figure 1 is the front view of the subsequent reclaimed water reuse device for seawater desalination of the present utility model;

[0016] Figure 2 is the structural schematic diagram of the recovery device;

[0017] Figure 3 is the structural schematic diagram of the annular drip pipe;

[0018] Description of the reference numerals: 1. Recovery device; 2. Green belt pipeline; 3. Tree irrigation pipeline; 4. First branch pipeline; 5. Second branch pipeline; 6. Swing arm nozzle; 7. Annular drip pipe.

[0019] 101, Water pool; 102, Secondary concentrated brine storage tank; 103, Post-mineralization backwash water storage tank; 104, Filter pool 1; 105, Filter pool 2; 106, Secondary concentrated brine inlet pipe; 107, Post-mineralization backwash water inlet pipe; 108, Overflow port; 109, Water receiving bucket; 110, Overflow pipe; 111, First connecting pipe; 112, Second connecting pipe; 113, Boss; 114, Sewage discharge outlet; 115, First water outlet pipe; 116, Second water outlet pipe; 701, Annular pipe; 702, T-shaped joint; 703, Elbow pipe. Detailed implementation manner

[0020] As Figure 1 shown, a device for reusing intermediate water after seawater desalination includes a recovery device 1, and the recovery device 1 is connected to a green belt pipeline 2 and a tree irrigation pipeline 3, and is used for daily irrigation and maintenance of green vegetation in the park with the recovered intermediate water, avoiding waste of water resources and saving resources.

[0021] As Figure 2 shown, the recovery device 1 includes a water pool 101 located on the right side, and on the left side of the water pool 101, a filter pool 1 104 and a filter pool 2 105 which are symmetrically distributed front and back are integrally formed. On the left side of the filter pool 1 104 and the filter pool 2 105, a secondary concentrated brine storage tank 102 and a post-mineralization backwash water storage tank 103 are integrally formed; the filter pool 1 104 and the secondary concentrated brine storage tank 102, and the filter pool 2 105 and the post-mineralization backwash water storage tank 103 are connected together through pipelines, that is, the filtered intermediate water can directly enter the secondary concentrated brine storage tank 102 and the post-mineralization backwash water storage tank 103 for storage.

[0022] Above the filter pool 1 104 and the filter pool 2 105, a secondary concentrated brine inlet pipe 106 and a post-mineralization backwash water inlet pipe 107 are respectively installed, and the secondary concentrated brine and the post-mineralization backwash water can directly enter the filter pool 1 104 and the filter pool 2 105 through the secondary concentrated brine inlet pipe 106 and the post-mineralization backwash water inlet pipe 107.

[0023] On the upper parts of the side walls of the secondary concentrated brine storage tank 102 and the post-mineralization backwash water storage tank 103, overflow ports 108 are respectively opened. On the outer side walls of the secondary concentrated brine storage tank 102 and the post-mineralization backwash water storage tank 103, water receiving buckets 109 which are communicated with the overflow ports 108 are fixedly installed. The bottom of the water receiving bucket 109 is communicated with the water pool 101 through an overflow pipe 110. When the intermediate water in the secondary concentrated brine storage tank 102 and the post-mineralization backwash water storage tank 103 is full, in order to prevent overflow, the intermediate water will flow from the overflow port 108 into the water receiving bucket 109 and finally enter the water pool 101 through the overflow pipe 110.

[0024] Below the overflow pipe 110, the first connecting pipe 111 and the second connecting pipe 112 for connecting the secondary concentrated brine storage tank 102 / post-mineralization backwashing water storage tank 103 and the water tank 101 are distributed in parallel. The first connecting pipe 111 is located above the second connecting pipe 112. The purpose of this design is to ensure that the intermediate water in the secondary concentrated brine storage tank 102 and the post-mineralization backwashing water storage tank 103 can enter the water tank 101 under different water depths.

[0025] At the bottom of the water tank 101, a sewage discharge port 114, a first water outlet pipe 115 and a second water outlet pipe 116 are installed. The first water outlet pipe 115 and the second water outlet pipe 116 are respectively connected to the green belt pipeline 2 and the tree irrigation pipeline 3. The sewage discharge port 114 is normally closed and can be opened when the water tank 101 is cleaned to discharge sewage through the sewage discharge port 114.

[0026] In both the first filter tank 104 and the second filter tank 105, filter meshes for filtering particulate matter are provided to prevent particulate matter from clogging pipelines or devices such as water pumps and valves.

[0027] At the bottom of both the secondary concentrated brine storage tank 102 and the post-mineralization backwashing water storage tank 103, a boss 113 is integrally formed, so that the lowest water levels of the secondary concentrated brine storage tank 102 and the post-mineralization backwashing water storage tank 103 are higher than the lowest water level of the water tank 101, avoiding the phenomenon of backflow when the water level is low and devices such as valves are damaged.

[0028] The green belt pipeline 2 is connected to a number of first branch pipelines 4 through a tee. The first branch pipelines 4 are vertically distributed, and a rocker nozzle 6 is installed at the top of the first branch pipelines 4.

[0029] The tree irrigation pipeline 3 is connected to a number of second branch pipelines 5 through a tee. The second branch pipelines 5 are vertically distributed, and a ring-shaped drip pipe 7 is connected to the top of the second branch pipelines 5.

[0030] As Figure 3 shown, the ring-shaped drip pipe 7 includes a ring pipe 701 surrounding the tree. The ring pipe 701 is connected to a bent pipe 703 through a T-shaped joint 702. The other end of the bent pipe 703 is connected to the second branch pipeline 5. A number of small holes for drip irrigation are provided on the ring pipe 701. A number of pipeline brackets are symmetrically arranged at the bottom of the bent pipe 703 to keep a certain distance from the ground, preventing the bent pipe 703 from directly contacting the wet ground and being easily corroded, thus extending the service life of the bent pipe 703.

[0031] Solenoid valves are installed on the first connecting pipe 111, the second connecting pipe 112, the green belt pipeline 2, the tree irrigation pipeline 3, the first branch pipeline 4 and the second branch pipeline 5; in addition, water pumps are installed on the first connecting pipe 111, the second connecting pipe 112, the green belt pipeline 2 and the tree irrigation pipeline 3.

[0032] The usage process of the present utility model is as follows:

[0033] First, the secondary concentrated brine and the post-mineralization backwash water enter the first filtration tank 104 and the second filtration tank 105 through the secondary concentrated brine inlet pipe 106 and the post-mineralization backwash water inlet pipe 107 for filtration; then the reclaimed water after filtration is stored in the secondary concentrated brine storage tank 102 and the post-mineralization backwash water storage tank 103 respectively; then, according to the water volume in the water tank 101, the first connecting pipe 111 and the second connecting pipe 112 send the reclaimed water in the secondary concentrated brine storage tank 102 and the post-mineralization backwash water storage tank 103 to the water tank 101 respectively; finally, according to the irrigation requirements of the green belt and the trees, the water in the water tank 101 enters the green belt pipeline 2 and the tree irrigation pipeline 3 respectively for spraying and irrigation to meet the water required for plant growth.

[0034] The embodiments described above are only descriptions of the preferred modes of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A device for recycling reclaimed water after desalination of seawater, characterized in that: The invention comprises a recovery device (1), wherein the recovery device (1) is connected to a green belt pipeline (2) and a tree irrigation pipeline (3), wherein the recovery device (1) comprises a pool (101) located on the right side, wherein a filter pool 1 (104) and a filter pool 2 (105) are integrally formed on the left side of the pool (101) and are symmetrically distributed front and back, and a secondary concentrated salt water reservoir (102) and a post-mineralization backwash water reservoir (103) are integrally formed on the left side of the filter pool 1 (104) and the filter pool 2 (105). 103); the filter tank 1 (104) and the secondary concentrated brine reservoir (102) as well as the filter tank 2 (105) and the post-mineralized backwash water reservoir (103) are connected together through pipelines; the filter tank 1 (104) and the filter tank 2 (105) are respectively provided with a secondary concentrated brine inlet pipe (106) and a post-mineralized backwash water inlet pipe (107) above the filter tank 1 (104) and the filter tank 2 (105); the upper part of the side wall of the secondary concentrated brine reservoir (102) and the post-mineralized backwash water reservoir (103) An overflow port (108) is provided on each of the secondary concentrated brine reservoir (102) and the post-mineralization backwash water reservoir (103). A water receiving bucket (109) connected to the overflow port (108) is provided on the outer wall of each of the secondary concentrated brine reservoir (102) and the post-mineralization backwash water reservoir (103). The bottom of the water receiving bucket (109) is connected to the water tank (101) through an overflow pipe (110). A pipe for connecting the secondary concentrated brine reservoir (102) and the post-mineralization backwash water reservoir (103) is provided in parallel below the overflow pipe (110). ) and a first connecting pipe (111) and a second connecting pipe (112) of the pool (101), wherein the first connecting pipe (111) is located above the second connecting pipe (112); a sewage outlet (114), a first water outlet pipe (115) and a second water outlet pipe (116) are provided at the bottom of the pool (101), wherein the first water outlet pipe (115) and the second water outlet pipe (116) are respectively connected to the green belt pipeline (2) and the tree irrigation pipeline (3).

2. The device for recycling reclaimed water after desalination of seawater according to claim 1, characterized in that: The first filter pool (104) and the second filter pool (105) are both provided with filter nets for filtering particulate matter.

3. The device for recycling reclaimed water after desalination of seawater according to claim 1, characterized in that: The bottoms of the secondary concentrated brine reservoir (102) and the post-mineralization backwash water reservoir (103) are both provided with bosses (113).

4. The device for recycling reclaimed water after desalination of seawater according to claim 1, characterized in that: The green belt pipeline (2) is connected to a plurality of branch pipelines (4) via a three-way pipe. The branch pipelines (4) are vertically distributed, and a rocker arm sprinkler (6) is provided at the top of the branch pipelines (4).

5. The device for recycling reclaimed water after desalination of seawater according to claim 1, characterized in that: The tree irrigation pipeline (3) is connected to a plurality of branch pipelines (5) via a tee pipe. The branch pipelines (5) are vertically distributed, and the tops of the branch pipelines (5) are connected to an annular drip tube (7).

6. The device for recycling reclaimed water after desalination of seawater according to claim 5, characterized in that: The annular drip pipe (7) comprises an annular pipe (701) surrounding the outer circumference of the tree, the annular pipe (701) is connected to a bend pipe (703) via a T-joint (702), and the other end of the bend pipe (703) is connected to branch pipe 2 (5); a plurality of small holes for drip irrigation are provided on the annular pipe (701).

7. The device for recycling reclaimed water after desalination of seawater according to claim 6, characterized in that: A plurality of pipeline supports are symmetrically arranged at the bottom of the curved pipe (703).

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