Liquid filtering device

Abstract

The utility model discloses a liquid filtering device, which belongs to the technical field of filtering equipment, and comprises a filter cartridge, the filter cartridge is provided with a cartridge body and a top cover, the filter cartridge is provided with a filtering mechanism, the top cover is provided with a liquid inlet and a plurality of liquid outlets, the liquid inlet is positioned in the center of the top cover, the liquid outlets are distributed in groups along the radial direction of the top cover, and the liquid outlets are communicated with the filtering mechanism. The filtering mechanism comprises a framework, a first liquid collecting pipe and a second liquid collecting pipe, the framework is sleeved with a filter bag, a connector is arranged at the top of the framework and connected with the liquid outlets in a sealed mode, the first liquid collecting pipe is used for being connected with a group of connectors arranged in the radial direction, the end of the first liquid collecting pipe is communicated with the second liquid collecting pipe, and the second liquid collecting pipe is communicated with the filter bag. And the second liquid collecting pipe is wound on the upper part of the cylinder body. A plurality of filter bags are independently arranged, so that the filter area is increased, and the filter efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtering equipment, and in particular relates to a liquid filtering device. Background Art

[0002] Tubular filters are industrial equipment used for solid-liquid separation, primarily filtering solid particles from liquid materials to protect downstream equipment such as compressors, pumps, and instruments, extending their service life. Existing filters have limited filtration area, making damaged filter bags difficult to detect and negatively impacting filtration quality. Cleaning the filter residue requires downtime. Therefore, we propose a liquid filtration device. Utility Model Content

[0003] The purpose of the utility model is to provide a liquid filtering device, aiming to solve the technical problems of the prior art in the above-mentioned background technology, such as limited filtering area of ​​the filter, difficulty in detecting damaged filter bags, and the need to shut down the machine to clean the filter residue.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A liquid filtering device comprises a filter cartridge, the filter cartridge having a cylinder body and a top cover, the filter cartridge being provided with a filtering mechanism, the top cover being provided with a liquid inlet and a liquid outlet, the liquid inlet being located in the center of the top cover, the liquid outlet being provided with a plurality of liquid outlets, the liquid outlets being arranged in groups radially along the top cover, and the plurality of groups of liquid outlets being evenly arranged circumferentially around the liquid inlet, the filtering mechanism comprising a skeleton, a first liquid collecting pipe and a second liquid collecting pipe, the skeleton being provided with a filter bag, a joint being provided at the top of the skeleton, the joint being sealed and connected to the liquid outlet, the first liquid collecting pipe being used to connect a group of radially arranged joints, the end of the first liquid collecting pipe being connected to the second liquid collecting pipe, and the second liquid collecting pipe being arranged around the upper part of the cylinder body.

[0006] Furthermore, an air blowing pipe is provided in the frame, an air inlet at the top of the air blowing pipe is provided at the joint, air holes are evenly distributed on the air blowing pipe, and the air blowing pipe is used to clean the filter bag.

[0007] Furthermore, the skeleton includes a support rod and a support ring, the top end of the support rod is connected to the joint, and a plurality of support rings are evenly distributed along the length direction of the support rod.

[0008] Furthermore, a first slag collecting valve, a filter residue collector and a second slag collecting valve are sequentially arranged at the bottom of the cylinder.

[0009] Furthermore, a transparent pipe is provided between the first collecting pipe and the second collecting pipe.

[0010] Furthermore, the pipe openings at both ends of the second liquid collecting pipe are adjacent to each other, and the second liquid collecting pipe is inclined toward the pipe opening.

[0011] Compared with the shortcomings and deficiencies of the prior art, the present invention has the following beneficial effects.

[0012] 1. The utility model provides a liquid filtering device, wherein a liquid inlet is provided at the center of the top cover of the filter cartridge, and liquid outlets are arranged in a divergent manner along the liquid inlet. The filter bag and the frame are inserted into the filter cartridge along the liquid outlet, and the filtrate discharged from a group of radially arranged liquid outlets is poured into the first collecting pipe and the second collecting pipe in sequence through a joint. Multiple separately arranged filter bags are conducive to increasing the filtration area and improving the filtration efficiency. The filter bags can be replaced according to the usage of different filter bags, thereby saving costs.

[0013] 2. A transparent pipe is provided between the first collecting pipe and the second collecting pipe to facilitate the rapid detection and location of filter bag damage, which helps to ensure the filtration quality; the first slag collection valve, filter residue collector and second slag collection valve are opened and closed alternately to achieve slag discharge from the filter cartridge without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a liquid filtering device in the utility model.

[0015] Figure 2 It is a structural schematic diagram of the filter cartridge in the utility model.

[0016] Figure 3 yes Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0017] Figure 4 It is a schematic diagram of the connection structure of the first collecting pipe and the second collecting pipe in the utility model.

[0018] Figure 5 It is a schematic diagram of the connection structure between the filter bag and the skeleton in the utility model.

[0019] In the figure: 1. Filter cartridge; 2. Filter mechanism; 3. Cylinder body; 4. Top cover; 5. Conical part; 6. First slag collecting valve; 7. Filter residue collector; 8. Second slag collecting valve; 9. Manhole; 10. Second liquid collecting pipe; 11. Transparent pipe; 12. Liquid outlet; 13. Connector; 14. Air inlet; 15. Hand-held part; 16. Liquid inlet; 17. First liquid collecting pipe; 18. Filter bag; 19. Frame; 20. Support rod; 21. Support ring; 22. Air blow pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Reference Figure 1-Figure 5 A liquid filtering device includes a filter cartridge 1, which includes a cylinder 3 and a top cover 4. The top cover 4 is provided with a liquid inlet 16, which is located in the center of the top cover 4 and is used to connect an external liquid supply pipeline. The filter cartridge 1 is provided with a filtering mechanism 2, which includes a filter bag 18, a skeleton 19, a first collecting pipe 17 and a second collecting pipe 10. The top cover 4 is provided with a plurality of liquid outlets 12, which are arranged divergently along the center of the top cover 4, that is, a plurality of liquid outlets 12 are arranged radially along the top cover 4, and a plurality of liquid outlets 12 in the same radial direction form a group, and a plurality of groups of liquid outlets 12 are evenly distributed circumferentially around the liquid inlet 16 in the center of the top cover 4. The filter bag 18 is sleeved on the outside of the skeleton 19, and the skeleton 19 and the filter bag 1 8 penetrates the filter cartridge 1 along the liquid outlet 12, and a joint 13 is provided on the top of the skeleton 19, which is sealed with the liquid outlet 12. A first collecting pipe 17 is radially arranged along the top cover 4, and one first collecting pipe 17 is used to connect a group of radially arranged joints 13. The filtrate in the filter cartridge 1 enters the first collecting pipe 17 through the liquid outlet 12 and the joint 13. Correspondingly, a plurality of first collecting pipes 17 are circumferentially arranged around the liquid inlet 16 on the top cover 4. The second collecting pipe 10 is wound around the upper part of the cylinder 3, and the end of the first collecting pipe 17 is connected to the second collecting pipe 10. The second collecting pipe 10 is used to gather and guide the filtrate derived from each first collecting pipe 17, and the end of the second collecting pipe 10 is used to connect to an external pipeline to derive the filtrate.

[0022] The skeleton 19 includes a support ring 21 and a support rod 20, wherein the support rod 20 is arranged vertically, the top end of the support rod 20 is connected to the joint 13, and multiple support rings 21 are evenly arranged along the length direction of the support rod 20. The support ring 21 and the support rod 20 cooperate to support the filter bag 18, which is conducive to the full expansion of the filter bag 18 to ensure the filtering effect.

[0023] The joint 13 is provided with a hand-held portion 15 , which is used to drive the frame 19 through the liquid outlet 12 via the joint 13 , so as to facilitate the replacement of the filter bag 18 .

[0024] In one embodiment, the liquid filtering device also includes a filter bag cleaning mechanism, which includes an air blowing pipe 22. The air blowing pipe 22 is inserted into the support ring 21. The length of the air blowing pipe 22 is the same as that of the support rod 20. The air holes are evenly distributed along the length of the air blowing pipe 22. The air inlet 14 at the top of the air blowing pipe 22 is set at the joint 13. The air inlet 14 is used to connect to an external air supply pipeline. The external air supply pipeline inputs gas into the air blowing pipe 22 and sprays the filter bag 18 through the air holes to blow off the filter residue attached to the filter bag 18, which is beneficial to ensure the filtering performance of the filter bag 18.

[0025] In one embodiment, a conical portion 5 is provided at the lower part of the cylinder 3, and a first slag discharge collecting valve 6, a filter residue collector 7, and a second slag discharge collecting valve 8 are sequentially provided at the bottom end of the conical portion 5, wherein the first slag discharge collecting valve 6 is opened, and the second slag discharge collecting valve 8 is closed, and the filter residue filtered in the filter cylinder 1 falls into the filter residue collector 7. When the filter residue collector 7 needs to discharge slag, the first slag discharge collecting valve 6 is closed, and the second slag discharge collecting valve 8 is opened to discharge the filter residue in the filter residue collector 7. After discharge, the second slag discharge collecting valve 8 is closed again, and the first slag discharge collecting valve 6 is opened, thereby realizing the slag discharge of the filter cylinder 1 without stopping.

[0026] In one embodiment, the second collecting pipe 10 is tilted toward its pipe opening as a whole, so as to facilitate the discharge of the filtrate in the second collecting pipe 10 .

[0027] In one embodiment, a transparent pipe 11 is provided between the second liquid collecting pipe 10 and the first liquid collecting pipe 17 . The transparent pipe 11 is used to observe the mixing problem of the filter bag 18 , so as to quickly find the damage of the filter bag 18 .

[0028] In one embodiment, the filter cartridge 1 is provided with a manhole 9 to facilitate manual inspection of the interior of the filter cartridge 1 .

[0029] When the liquid filtration device is in use, the liquid to be filtered enters the filter cartridge 1 through the liquid inlet 16. The liquid is filtered by the filter bag 18 and then pushed back to the liquid outlet 12. The filtrate discharged from the radially arranged group of liquid outlets 12 enters the same first collection pipe 17 through the joint 13, and then enters the second collection pipe 10 through the transparent pipe 11. The filtrate in each first collection pipe 17 is collected and discharged from the second collection pipe 10. The impurities filtered in the filter cartridge 1 fall into the filter residue collector 7. The first and second collection valves 6 and 8 cooperate to achieve non-stop slag discharge. The air blow pipe 22 sprays the filter bag 18 to blow off impurities adhering to the surface of the filter bag 18, thereby cleaning the surface of the filter bag 18.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid filtering device, comprising a filter cartridge (1), wherein the filter cartridge (1) has a cartridge body (3) and a top cover (4), and the filter cartridge (1) is provided with a filtering mechanism (2), characterized in that: The top cover (4) is provided with a liquid inlet (16) and a liquid outlet (12), wherein the liquid inlet (16) is located at the center of the top cover (4), and the liquid outlet (12) is provided with a plurality of liquid outlets (12), which are arranged in groups along the radial direction of the top cover (4), and the plurality of groups of liquid outlets (12) are uniformly arranged circumferentially around the liquid inlet (16). The filtering mechanism (2) comprises a skeleton (19), a first collecting pipe (17) and a second collecting pipe (10), wherein the skeleton (19) is provided with a filter bag (18), and a joint (13) is provided at the top of the skeleton (19), wherein the joint (13) is sealedly connected to the liquid outlet (12), and the first collecting pipe (17) is used to connect a group of radially arranged joints (13), and the end of the first collecting pipe (17) is communicated with the second collecting pipe (10), and the second collecting pipe (10) is arranged around the upper part of the cylinder (3).

2. The liquid filtering device according to claim 1, wherein An air blowing pipe (22) is provided in the frame (19), an air inlet (14) at the top of the air blowing pipe (22) is provided on the joint (13), and air holes are evenly distributed on the air blowing pipe (22).

3. The liquid filtering device according to claim 2, wherein: The skeleton (19) comprises a support rod (20) and a support ring (21); the top end of the support rod (20) is connected to the joint (13); and a plurality of support rings (21) are evenly distributed along the length direction of the support rod (20).

4. The liquid filtering device according to claim 1, wherein A first slag collecting valve (6), a filter residue collector (7), and a second slag collecting valve (8) are sequentially arranged at the bottom of the cylinder (3).

5. The liquid filtering device according to claim 1, wherein A transparent pipe (11) is provided between the first liquid collecting pipe (17) and the second liquid collecting pipe (10).

6. The liquid filtering device according to claim 1, wherein The pipe openings at both ends of the second liquid collecting pipe (10) are adjacent to each other, and the second liquid collecting pipe (10) is inclined toward one side of the pipe opening.

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