Front filtering device for seawater desalination treatment

Abstract

The utility model relates to the technical field of seawater desalination and filtration, and discloses a pre-filtering device for seawater desalination treatment, which comprises a pre-filter and a filtering mechanism, the pre-filter comprises a base, a filtering shell and a top cover; a water inlet pipe is mounted on the outer wall of the filter shell, and a water outlet pipe is arranged on the top cover; the filtering mechanism comprises a filtering seat, a filtering piece and a limiting assembly; the limiting assembly comprises a limiting rod, a limiting pipe and a limiting spring, the pre-filter and the filtering mechanism are arranged, the filtering seat and the filtering piece are matched to filter seawater in the filtering shell, and the limiting rod, the limiting pipe and the limiting spring are matched for use, so that the filtering piece can reciprocate on the filtering seat; according to the invention, impurities adhered to the filter piece are cleaned, the frequency of maintaining the filter piece by workers is reduced, and the filter shell can be disassembled or fixed through the arranged mounting block and reinforcing block.

Description

Technical Field

[0001] The utility model relates to the technical field of seawater desalination filtration, in particular to a pre-filter device for seawater desalination treatment. Background Art

[0002] Seawater desalination is the process of removing salt and impurities from seawater to make it drinkable or irrigation fresh water. Common seawater desalination methods include distillation and reverse osmosis. Distillation heats seawater to boiling point, evaporates water and condenses it into fresh water to remove salt and impurities. Reverse osmosis uses a semi-permeable membrane to force seawater through the membrane under high pressure, trapping salt and impurities outside the membrane to obtain fresh water. Seawater desalination plays an important role in solving the problem of freshwater shortage.

[0003] Seawater desalination treatment requires filtering out larger impurities in seawater to improve the efficiency of subsequent seawater desalination treatment. Therefore, a pre-filter device for seawater desalination treatment is needed.

[0004] The existing pre-filter device for seawater desalination treatment has certain disadvantages when in use. When in use, the existing pre-filter device for seawater desalination treatment usually uses a filter net to filter seawater, but the staff is required to regularly disassemble and maintain the filter net inside the filter device. The filter net is troublesome to disassemble, which increases the labor intensity of the staff and cannot meet people's needs. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a pre-filter device for seawater desalination treatment, which can solve the problem of difficulty in disassembling and maintaining the filter screen.

[0007] (II) Technical solution

[0008] The utility model is implemented by the following technical scheme: a pre-filter device for seawater desalination treatment, comprising a pre-filter and a filtering mechanism arranged on the pre-filter, the pre-filter can filter impurities from desalinated seawater; wherein the pre-filter comprises a base, a filtering shell detachably connected to the base and a top cover detachably mounted on the top of the filtering shell; an inlet pipe is mounted on the outer wall of the filtering shell, and an outlet pipe is mounted on the top cover; the filtering mechanism comprises a plurality of groups of filtering seats arranged on the inner wall of the filtering shell, a filtering element movably arranged on the inner side of the filtering seat and a limiting assembly for limiting the connection between the filtering element and the filtering seat, the mesh size of the upper filtering element being smaller than the mesh size of the lower filtering element size, the filter element cooperates with the filter seat to filter the seawater inside the pre-filter; the limiting assembly includes several groups of limiting rods detachably arranged on the filter seat, a limiting tube detachably connected to the filter element and a limiting spring detachably arranged at the bottom end of the limiting rod, the limiting assembly can make the filter element move in a limited manner on the filter seat, and can adjust the moving distance of the filter element; the filter element is provided with several groups of through holes matching the limiting rod; the bottom end of the limiting rod is arranged inside the limiting tube, one end of the limiting spring is detachably connected to the inner bottom surface of the limiting tube, the limiting spring can make the filter element move, and can clean up the impurities adhering to the filter element.

[0009] Preferably, several groups of the limit rods are installed in a circular array on the filter seat, the filter seat is provided with a groove matching the filter element, the bottom end surface of the filter element is provided with several groups of limit grooves connected to the limit tube, and the outer wall of the limit tube is provided with a thread connected to the limit groove.

[0010] Preferably, a filter tank with a cylindrical structure is arranged in the middle of the filter element, a filter screen is installed in the filter tank, and several groups of the limit tubes are arranged on the outside of the filter screen.

[0011] Preferably, the water inlet of the water inlet pipe is arranged below the filter element, and the water outlet of the water outlet pipe is arranged above the filter element.

[0012] Preferably, a reinforcement block is disposed at the upper end of the base, a sealing groove detachably connected to the reinforcement block is disposed at the bottom end of the filter shell, and a collecting groove is disposed on the top surface of the reinforcement block.

[0013] Preferably, the bottom end surface of the top cover and the bottom end surface of the filter shell are vertically provided with mounting blocks, the top end surface of the filter shell and the upper end surface of the base are provided with mounting grooves connected to the mounting blocks, and the two sets of mounting blocks can disassemble or fix the top cover and the filter shell.

[0014] Preferably, the filter element can be configured as waterproof plastic, and the surface of the limiting rod and the surface of the limiting tube are coated with a coating that prevents seawater corrosion.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a pre-filter device for seawater desalination treatment, which has the following beneficial effects:

[0017] The pre-filter device for seawater desalination treatment can filter the seawater inside the filter shell by means of the pre-filter and the filter mechanism, the filter seat and the filter element. The limit rod, the limit tube and the limit spring are used in cooperation to enable the filter element to reciprocate on the filter seat, thereby cleaning the impurities adhered to the filter element, reducing the number of times the staff maintains the filter element, and the filter shell can be disassembled or fixed by means of the installation block and the reinforcement block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0019] Figure 2 It is a partial structural diagram of the pre-filter and the filtering mechanism in the utility model.

[0020] Figure 3 It is a partial structural diagram of the filter element and the limiting rod in the utility model.

[0021] Figure 4 It is a partial structural diagram of the limiting rod and the limiting tube in the utility model.

[0022] Figure 5 It is a partial structural diagram of the filter seat in the utility model.

[0023] Figure 6 It is a partial structural diagram of the base and reinforcement block in the utility model.

[0024] In the figure: 1. pre-filter; 2. base; 3. filter shell; 4. top cover; 5. water inlet pipe; 6. water outlet pipe; 7. mounting block; 8. filter seat; 9. filter element; 10. limit rod; 11. limit tube; 12. limit spring; 13. groove; 14. filter screen; 15. reinforcement block. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] Example 1: Please refer to Figure 1 - Figure 6, a pre-filter device for seawater desalination treatment of the present embodiment comprises a pre-filter 1 and a filtering mechanism arranged on the pre-filter 1, and the pre-filter 1 can filter impurities from desalinated seawater; wherein the pre-filter 1 comprises a base 2, a filtering shell 3 detachably connected to the base 2, and a top cover 4 detachably mounted on the top of the filtering shell 3; an inlet pipe 5 is mounted on the outer wall of the filtering shell 3, and an outlet pipe 6 is arranged on the top cover 4; the filtering mechanism comprises a plurality of groups of filtering seats 8 arranged on the inner wall of the filtering shell 3, a filtering element 9 movably arranged on the inner side of the filtering seat 8, and a limiting assembly that limits the connection between the filtering element 9 and the filtering seat 8, the mesh size of the upper filtering element 9 is smaller than the mesh size of the lower filtering element 9, and the filtering element 9 cooperates with the filtering seat 8 to filter the seawater inside the pre-filter 1; the limiting assembly comprises a plurality of groups of limiting rods 10 detachably arranged on the filtering seat 8, a limiting pipe 11 detachably connected to the filtering element 9, and a limiting assembly detachably arranged on the limiting rod 10 The limit spring 12 at the bottom end of the rod 10, the limit assembly can make the filter 9 move in a limited position on the filter seat 8, and can adjust the moving distance of the filter 9; the filter 9 is provided with a plurality of through holes matching the limit rod 10; the bottom end of the limit rod 10 is arranged inside the limit tube 11, and one end of the limit spring 12 is detachably connected to the inner bottom surface of the limit tube 11, and the limit spring 12 can make the filter 9 move and can clean up the impurities adhering to the filter 9, and the seawater enters the interior of the filter shell 3 through the water inlet pipe 5, and passes through the filter 9, so that the filter 9 filters the seawater, and then enters the seawater desalination equipment from the water outlet pipe 6, when no seawater enters the filter shell 3, under the action of gravity, the filter 9 reciprocates, and the filter 9 drives the limit tube 11 to move, so that the limit rod 10 and the limit spring 12 move in the limit tube 11, and the impurities adhering to the filter 9 are separated.

[0027] Several groups of limiting rods 10 are installed in a circular array on the filter seat 8. The filter seat 8 is provided with a groove 13 matching the filter element 9. The bottom end surface of the filter element 9 is provided with several groups of limiting grooves connected to the limiting tube 11. The outer wall of the limiting tube 11 is provided with a thread connected to the limiting groove. Seawater enters the interior of the filter shell 3, so that the filter element 9 floats in the seawater and the filter element 9 fits with the filter seat 8.

[0028] A cylindrical filter tank is arranged in the middle of the filter element 9 , a filter screen 14 is installed in the filter tank, and a plurality of groups of limit tubes 11 are arranged on the outside of the filter screen 14 .

[0029] The water inlet of the water inlet pipe 5 is arranged below the filter element 9 , and the water outlet of the water outlet pipe 6 is arranged above the filter element 9 .

[0030] A reinforcement block 15 is provided at the upper end of the base 2, and a sealing groove detachably connected to the reinforcement block 15 is provided at the bottom end of the filter shell 3. The sealing groove enables the base 2 to be sealed and connected to the filter shell 3. A collecting groove is provided on the top surface of the reinforcement block 15, and the collecting groove can collect impurities detached from the filter element 9.

[0031] The bottom end surface of the top cover 4 and the bottom end surface of the filter shell 3 are vertically provided with mounting blocks 7, and the top end surface of the filter shell 3 and the upper end surface of the base 2 are provided with mounting grooves connected to the mounting blocks 7. The two groups of mounting blocks 7 can disassemble or fix the top cover 4 and the filter shell 3. The mounting blocks 7 are annular in structure. Rotating the filter shell 3 or the top cover 4 drives the mounting blocks 7 to rotate, and the mounting blocks 7 can be removed or fixed from the mounting grooves, thereby disassembling or fixing the filter shell 3 or the top cover 4.

[0032] The filter element 9 can be made of waterproof plastic, and the surfaces of the limiting rod 10 and the limiting tube 11 are coated with a coating that prevents seawater corrosion.

[0033] When a pre-filter device for seawater desalination is used, seawater enters the interior of a filter housing 3 through a water inlet pipe 5, passes through a filter element 9, and the filter element 9 filters the seawater, and then enters the seawater desalination device from a water outlet pipe 6. When no seawater enters the filter housing 3, the filter element 9 moves back and forth under the action of gravity, and the filter element 9 drives the limit tube 11 to move, so that the limit rod 10 and the limit spring 12 move in the limit tube 11, and the impurities adhering to the filter element 9 are separated;

[0034] Seawater enters the filter housing 3, so that the filter element 9 floats in the seawater and the filter element 9 fits with the filter seat 8;

[0035] Rotating the filter housing 3 or the top cover 4 drives the mounting block 7 to rotate, so that the mounting block 7 can be removed or fixed from the mounting groove, thereby removing or fixing the filter housing 3 or the top cover 4.

[0036] The pre-filter device for seawater desalination treatment can filter the seawater inside the filter shell 3 through the pre-filter 1 and the filtering mechanism, the filter seat 8 and the filter element 9. The limiting rod 10, the limiting tube 11 and the limiting spring 12 are used together to enable the filter element 9 to reciprocate on the filter seat 8, so as to clean the impurities adhering to the filter element 9, reduce the number of times the staff maintains the filter element 9, and the filter shell 3 can be disassembled or fixed through the provided mounting block 7 and the reinforcement block 15.

[0037] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A pre-filter device for seawater desalination treatment, characterized in that: include: A pre-filter (1) and a filtering mechanism arranged on the pre-filter (1); The pre-filter (1) comprises a base (2), a filter housing (3) detachably connected to the base (2), and a top cover (4) detachably mounted on the top of the filter housing (3); A water inlet pipe (5) is installed on the outer wall of the filter housing (3), and a water outlet pipe (6) is provided on the top cover (4); The filtering mechanism comprises a plurality of groups of filter seats (8) arranged on the inner wall of the filter housing (3), a filter element (9) movably arranged inside the filter seat (8), and a limit assembly for limitably connecting the filter element (9) to the filter seat (8); The limiting assembly comprises a plurality of groups of limiting rods (10) detachably arranged on the filter seat (8), a limiting tube (11) detachably connected to the filter element (9), and a limiting spring (12) detachably arranged at the bottom end of the limiting rod (10); The filter element (9) is provided with a plurality of groups of through holes matching the limiting rods (10); The bottom end of the limiting rod (10) is arranged inside the limiting tube (11), and one end of the limiting spring (12) is detachably connected to the inner bottom surface of the limiting tube (11).

2. A pre-filter device for seawater desalination treatment according to claim 1, characterized in that: A plurality of groups of the limiting rods (10) are mounted on the filter seat (8) in a circular array. The filter seat (8) is provided with a groove (13) matching the filter element (9). The bottom end surface of the filter element (9) is provided with a plurality of groups of limiting grooves connected to the limiting tubes (11).

3. A pre-filter device for seawater desalination as claimed in claim 1, characterized in that: A cylindrical filter tank is provided in the middle of the filter element (9), a filter screen (14) is installed in the filter tank, and a plurality of groups of limit tubes (11) are arranged on the outside of the filter screen (14).

4. A pre-filter device for seawater desalination as claimed in claim 1, characterized in that: The water inlet of the water inlet pipe (5) is arranged below the filter element (9), and the water outlet of the water outlet pipe (6) is arranged above the filter element (9).

5. The pre-filter device for seawater desalination treatment according to claim 1, characterized in that: A reinforcing block (15) is provided at the upper end of the base (2), a sealing groove detachably connected to the reinforcing block (15) is provided at the bottom end of the filter housing (3), and a collecting groove is provided on the top surface of the reinforcing block (15).

6. A pre-filter device for seawater desalination as claimed in claim 1, characterized in that: The bottom end surface of the top cover (4) and the bottom end surface of the filter housing (3) are both vertically provided with mounting blocks (7), and the top end surface of the filter housing (3) and the upper end surface of the base (2) are both provided with mounting grooves connected to the mounting blocks (7).

7. A pre-filter device for seawater desalination as claimed in claim 1, characterized in that: The filter element (9) may be configured as waterproof plastic, and the surface of the limiting rod (10) and the surface of the limiting tube (11) are both coated with a coating that resists seawater corrosion.

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