Laboratory ultrapure water machine and precision filter thereof

Abstract

The ultrapure water machine comprises a fixed cylinder and a first pipeline, a plurality of groups of supporting legs are uniformly fixed at the bottom of the fixed cylinder, the fixed cylinder is matched with the ultrapure water machine in the laboratory for use, the first pipeline is positioned on the front surface of the fixed cylinder, three groups of placing grooves are uniformly formed in the fixed cylinder, and a filter element is placed in each group of placing groove; the first pipeline communicates with an annular communicating frame, the three ends, away from the first pipeline, of the annular communicating frame penetrate into the fixing cylinder and communicate with the containing groove, and the fixing cylinder is provided with a plugging limiting assembly used in cooperation with the filter element. The multiple groups of filter elements which are used in an isolated manner and can control the water flow inrush state are matched with the plugging structure which can be quickly disassembled and assembled, so that when a certain group of filter elements needs to be overhauled or replaced, only the corresponding auxiliary valves need to be closed, plugging is removed, and the certain group of filter elements can be pulled out, and the situation that the filter elements can be overhauled or replaced by shutdown is avoided; and the overall working efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrapure water machines, in particular to a laboratory ultrapure water machine and a precision filter thereof. Background Technique

[0002] An ultrapure water machine is a water treatment device that uses methods such as pretreatment, reverse osmosis technology, ultra-purification treatment, and post-treatment to almost completely remove the conductive medium in water, and also remove colloidal substances, gases, and organic substances that do not dissociate in water to a very low level. A laboratory ultrapure water machine is a type of ultrapure water machine, and a precision filter is an essential and important device on the laboratory ultrapure water machine to remove impurities in water, ensure the purity of the fluid, improve water quality, and protect downstream equipment from damage.

[0003] When the precision filter is in use, multiple groups of filter elements are directly placed inside the cylinder body. If one of the filter elements fails and needs to be repaired or replaced, the user needs to shut down the entire device to repair or replace the filter element, and it is impossible to isolate and use multiple groups of filter elements in a form that can be quickly disassembled and assembled, which greatly reduces the overall working efficiency of the device. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defect that multiple groups of filter elements cannot be isolated and used in a form that can be quickly disassembled and assembled in the prior art, and to provide a laboratory ultrapure water machine and a precision filter thereof.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A precision filter includes a fixed cylinder with multiple groups of legs evenly fixed at the bottom and used in cooperation with a laboratory ultrapure water machine, and a first pipe located on the front of the fixed cylinder. Three placement grooves are evenly formed in the fixed cylinder, and each placement groove contains a filter element. An annular communication frame is connected to the first pipe, and three ends of the annular communication frame away from the first pipe penetrate into the fixed cylinder and communicate with the placement grooves. Three drain pipes are evenly connected to the bottom of the fixed cylinder, and one end of each drain pipe penetrates into the placement groove and is inserted at the bottom of the filter element. The other ends of the three drain pipes are connected to a second pipe, and a plugging and limiting assembly used in cooperation with the filter element is arranged on the fixed cylinder.

[0007] Preferably, the plugging and limiting assembly includes a plugging block clamped in the placement groove, the bottom of the plugging block is attached to the filter element, a sealing disc attached to the top of the fixed cylinder is fixed on the plugging block, multiple groups of reinforcing rods are uniformly fixed on each sealing disc, a clamping seat used in cooperation with the reinforcing rods is fixed on the fixed cylinder, a support plate is fixed on the surface of each sealing disc, a positioning frame is inserted on each support plate, two groups of springs are symmetrically wound around the smooth rod of each positioning frame, and the two ends of the springs are fixed on the support plate and the protruding end of the positioning frame, the bottom of each positioning frame is inserted on the fixed cylinder, and auxiliary valves are arranged at three ends of the annular communication frame close to the fixed cylinder.

[0008] Preferably, the whole of each plugging block is in a T-shaped structure, and a sealing ring with an outer ring attached to the inner wall of the placement groove is arranged at the bottom of each plugging block.

[0009] Preferably, multiple groups of arc-shaped blocks are uniformly fixed on the top of the surface of each filter element, and the mutually remote sides of adjacent multiple groups of arc-shaped blocks are attached to the inner wall of the placement groove.

[0010] Preferably, the number of reinforcing rods on each sealing disc is at least four groups.

[0011] Preferably, a one-way valve is arranged on each drain pipe, and docking rods are symmetrically fixed on the second pipe in the left-right direction, and one end of each docking rod is fixed on the fixed cylinder.

[0012] A laboratory ultrapure water machine includes the precision filter as described above.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For the laboratory ultrapure water machine and its precision filter, by arranging the plugging and limiting assembly and the design of multiple placement grooves, multiple filter elements can be quickly separated. The design of the plugging block and the sealing disc can seal the top of the placement groove and limit the filter element to prevent the filter element from moving in the placement groove and affecting the filtering effect. At the same time, by using the clamping of the reinforcing rod and the clamping seat, and cooperating with the positioning frame that can be clamped with the top of the fixed cylinder under the elastic force of the spring, the sealing disc and the plugging block can be quickly fixed to prevent separation, so that the placement groove can be completely plugged and sealed. During disassembly, only need to lift the positioning frame upward and rotate the sealing disc. The design of the auxiliary valve can block the continuous influx of water in time when a certain group of filter elements needs to be repaired or replaced. By using multiple filter elements that are isolated and can control the water influx state, and cooperating with the plugging structure that can be quickly disassembled and assembled, when a certain group of filter elements needs to be repaired or replaced, only need to close the corresponding auxiliary valve and remove the plugging to extract a certain group of filter elements, avoiding the need to stop the machine to repair or replace the filter element, and improving the overall working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Structural schematic diagram of the precision filter proposed by the present utility model;

[0016] Figure 2 is Figure 1 Enlarged view of the structure at position A in

[0017] Figure 3 Partial exploded view of the structure of the precision filter proposed by the present utility model;

[0018] Figure 4 Partial cross-sectional view of the structure of the precision filter proposed by the present utility model;

[0019] Figure 5 Partial exploded view of the structure of the plugging and limiting assembly proposed by the present utility model.

[0020] In the figure: 1, fixed cylinder; 2, placement groove; 3, filter element; 4, annular communication frame; 5, first pipeline; 6, drain pipe; 7, second pipeline; 8, check valve; 9, plugging block; 10, sealing ring; 11, sealing disc; 12, clamping seat; 13, reinforcing rod; 14, support plate; 15, positioning frame; 16, spring; 17, arc-shaped block; 18, auxiliary valve. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Embodiment

[0023] Refer to Figure 1 , Figure 3 and Figure 4, A precision filter, including a fixed cylinder 1 with multiple groups of legs evenly fixed at the bottom and used in conjunction with a laboratory ultrapure water machine, and a first pipeline 5 located on the front of the fixed cylinder 1. Three placement grooves 2 are evenly opened in the fixed cylinder 1. Each group of placement grooves 2 contains a filter element 3. The first pipeline 5 is connected to an annular communication frame 4, and three ends of the annular communication frame 4 away from the first pipeline 5 penetrate into the fixed cylinder 1 and communicate with the placement grooves 2. Three drain pipes 6 are evenly connected to the bottom of the fixed cylinder 1, and one end of each drain pipe 6 penetrates into the placement groove 2 and is inserted at the bottom of the filter element 3. Multiple groups of arc-shaped blocks 17 are evenly fixed at the top of the surface of each group of filter elements 3. The mutually remote sides of adjacent multiple groups of arc-shaped blocks 17 are attached to the inner wall of the placement groove 2. The design of the arc-shaped blocks 17 can limit the filter element 3 and prevent the filter element 3 from shaking in the placement groove 2. The other ends of the three drain pipes 6 are connected to a second pipeline 7. A one-way valve 8 is provided on each drain pipe 6. Docking rods are symmetrically fixed on the second pipeline 7 in the left-right direction, and one end of each docking rod is fixed on the fixed cylinder 1. The design of the one-way valve 8 can limit the water flow direction of the drain pipes 6 and prevent the water in multiple drain pipes 6 from flowing to each other. The design of the docking rods improves the overall stability of the second pipeline 7;

[0024] Referring to Figures 1-3 and Figure 5 , A plugging and limiting component used in conjunction with the filter element 3 is provided on the fixed cylinder 1. The plugging and limiting component includes a plugging block 9 clamped in the placement groove 2. The bottom of the plugging block 9 is attached to the filter element 3. A sealing disk 11 attached to the top of the fixed cylinder 1 is fixed on the plugging block 9. Each group of plugging blocks 9 has an overall T-shaped structure. A sealing ring 10 with an outer ring attached to the inner wall of the placement groove 2 is provided at the bottom of each group of plugging blocks 9. By setting the sealing ring 10, the sealing effect of the plugging block 9 on the placement groove 2 is improved, and water overflow can be effectively avoided. Multiple groups of reinforcing rods 13 are evenly fixed on each sealing disk 11. A clamping seat 12 used in conjunction with the reinforcing rods 13 is fixed on the fixed cylinder 1. The number of reinforcing rods 13 on each sealing disk 11 is at least four groups. The limitation of the number of reinforcing rods 13 can improve the overall positioning effect on the sealing disk 11. A support plate 14 is fixed on the surface of each sealing disk 11. A positioning frame 15 is inserted on each support plate 14. Two groups of springs 16 are symmetrically wound around the smooth rod of each positioning frame 15, and the two ends of the springs 16 are fixed on the support plate 14 and the protruding ends of the positioning frame 15. The bottom of each positioning frame 15 is inserted on the fixed cylinder 1. Auxiliary valves 18 are provided at three ends of the annular communication frame 4 close to the fixed cylinder 1. By setting the plugging and limiting component, multiple filter elements 3 that are used separately and can control the water flow influx state are utilized, and in combination with a plugging structure that can be quickly disassembled and assembled, when a certain group of filter elements 3 needs to be repaired or replaced, only the corresponding auxiliary valve 18 needs to be closed and the plugging is released to extract a certain group of filter elements 3, avoiding the need to stop the machine to repair or replace the filter elements 3 and improving the overall working efficiency of the equipment.

[0025] A laboratory ultrapure water machine includes the precision filter as described above.

[0026] In the present utility model, when it is necessary to repair or replace a certain group of filter elements 3, the user only needs to close the auxiliary valve 18 corresponding to the placement groove 2 of this group, so as to quickly block the continuous influx of water. Then the user pulls up the positioning frame 15 until the positioning frame 15 disengages from the top of the fixed cylinder 1. At this time, the user rotates the sealing disc 11, which can drive the reinforcing rod 13 to rotate until the reinforcing rod 13 completely disengages from the clamping seat 12. Then the user pulls up the sealing disc 11, and the plugging block 9 can be taken out of the placement groove 2. At this time, the user only needs to pull up the filter element 3 to take it out of the placement groove 2. Then the user can repair or replace this group of filter elements 3. After the repair or replacement is completed, the user reinserts the filter element 3 into the placement groove 2 until the bottom of the filter element 3 is inserted onto the drain pipe 6, and at this time the arc-shaped block 17 will contact the inner wall of the placement groove 2. Then the user reinserts the plugging block 9 into the placement groove 2 and rotates the sealing disc 11 to insert the reinforcing rod 13 back into the clamping seat 12, and uses the elastic force of the spring 16 to push the positioning frame 15 to be inserted onto the fixed cylinder 1, so as to quickly fix the sealing disc 11 and the plugging block 9. By using multiple groups of filter elements 3 that are isolated and can control the water influx state, and cooperating with a plugging structure that can be quickly disassembled and assembled, when a certain group of filter elements 3 needs to be repaired or replaced, only the corresponding auxiliary valve 18 needs to be closed and the plugging is released to extract a certain group of filter elements 3, avoiding the need to stop the machine to repair or replace the filter elements 3, and improving the overall working efficiency of the equipment.

[0027] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A precision filter, comprising a fixed cylinder (1) having a plurality of legs evenly fixed at the bottom and used in conjunction with a laboratory ultrapure water machine, and a first pipe (5) located on the front of the fixed cylinder (1), characterized in that: Three groups of placement grooves (2) are evenly arranged in the fixed cylinder (1), and a filter element (3) is placed in each group of the placement grooves (2). The first pipe (5) is connected to an annular connecting frame (4), and the three ends of the annular connecting frame (4) away from the first pipe (5) penetrate into the fixed cylinder (1) and are mutually connected with the placement grooves (2). The bottom of the fixed cylinder (1) is evenly connected to three groups of drainage pipes (6), and one end of the drainage pipe (6) penetrates into the placement groove (2) and is inserted into the bottom of the filter element (3), and the other ends of the three groups of drainage pipes (6) are connected to the second pipe (7). The fixed cylinder (1) is provided with a blocking and limiting component used in conjunction with the filter element (3).

2. The precision filter according to claim 1, characterized in that: The blocking and limiting assembly comprises a blocking block (9) clamped in the placement groove (2); the bottom of the blocking block (9) is attached to the filter element (3); a sealing disk (11) is fixed to the blocking block (9) and is attached to the top of the fixed cylinder (1); a plurality of groups of reinforcing rods (13) are evenly fixed to each group of the sealing disks (11); a clamping seat (12) used in conjunction with the reinforcing rods (13) is fixed to the fixed cylinder (1); and each group of the sealing disks (11) has a plurality of reinforcing rods (13) fixed to each other. A support plate (14) is fixed on the surface, and a positioning frame (15) is inserted on each group of the support plates (14). Two groups of springs (16) are symmetrically wound on the bare rods of each group of the positioning frames (15), and the two ends of the springs (16) are fixed on the protruding ends of the support plates (14) and the positioning frames (15). The bottom of each group of the positioning frames (15) is inserted on the fixed cylinder (1), and auxiliary valves (18) are arranged on the three ends of the annular connecting frame (4) close to the fixed cylinder (1).

3. The precision filter according to claim 2, characterized in that: Each group of the blocking blocks (9) is in a T-shaped structure as a whole, and a sealing ring (10) with an outer ring fitted on the inner wall of the placement groove (2) is provided at the bottom of each group of the blocking blocks (9).

4. The precision filter according to claim 1, characterized in that: A plurality of groups of arc-shaped blocks (17) are evenly fixed on the top of the surface of each group of the filter core (3), and the sides of the adjacent groups of the arc-shaped blocks (17) that are away from each other are attached to the inner wall of the placement groove (2).

5. The precision filter according to claim 2, characterized in that: The number of the reinforcing rods (13) on each group of sealing discs (11) is at least four.

6. The precision filter according to claim 1, characterized in that: Each set of the drainage pipes (6) is provided with a one-way valve (8), and the second pipe (7) is symmetrically fixed with docking rods in the left-right direction, and one end of the docking rod is fixed on the fixing cylinder (1).

7. A laboratory ultrapure water machine, characterized in that: A precision filter comprising any one of claims 1-6.

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