High-pressure filter

Abstract

The utility model belongs to the technical field of filters, particularly relates to a high-pressure filter, and provides the following scheme aiming at the problems that in the prior art, sundries attached to a filter element need to be reduced, and the filter element needs to be conveniently cleaned, maintained and replaced: the high-pressure filter comprises a machine body, a containing cover and a sliding ring, a sliding ring is arranged at the top end of the containing cover, a valve rod is arranged at one end in the machine body, a filter element penetrates through the containing cover, and a sealing cap is arranged at the top end of the filter element; a through groove correspondingly connected with the valve rod in a sleeving mode is formed in the machine body used for conveying, and an outflow hole is formed in the side, close to the interior of the containing cover, of the through groove in a penetrating mode. Spiral pieces are spirally arranged on the inner wall of the containing cover for connection in a surrounding mode, and a cleaning pipe is arranged on one side of the center of the machine body. The utility model has the advantages of effectively reducing the attachment of sundries, cleaning the blocked attached crops in various ways, and being convenient to disassemble, clean and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a high-pressure filter. Background Art

[0002] High-pressure precision filters, also known as security filters, are widely used in solid-liquid separation and purification in various industries. They are equipped with filter elements inside. They are mainly used for filtering high-pressure fluids, which can remove tiny particles and suspended matter in the fluids to ensure the safety and cleanliness of the fluids. The main principle is that during the filtration process of the high-pressure precision filter, the fluid will pass through the filter medium, and a film layer will gradually form on the surface of the filter medium. The film layer will hinder the speed of the fluid passing through the filter medium, thereby forming a pressure difference between the inlet and outlet of the fluid. By controlling the pressure difference between the inlet and outlet, the speed of the fluid passing through the filter medium remains unchanged, thereby ensuring the filtration effect and stability.

[0003] During long-term use, various particles are usually attached to the inside of the filter, which actually affects the efficiency of liquid passage. Therefore, a structure is needed that can be easily and quickly cleaned and reduce the adhesion of debris. At the same time, the filter element has a certain service life limit during use, and when the use cycle is reached, it needs to be replaced in time. Therefore, the device is also required to be designed with a quick-release structure that is easy to operate to facilitate the replacement and maintenance of the filter element. Utility Model Content

[0004] The utility model provides a high-pressure filter, which solves the problem of reducing the adhesion of debris on the filter element and facilitating cleaning, repair and replacement of the filter element.

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

[0006] A high-pressure filter comprises a body, a containing cover and a sliding ring, wherein the top of the body is provided with a containing cover, the top of the containing cover is provided with a sliding ring, one end of the body is provided with a valve stem, a filter element is provided through the inside of the containing cover, and the top of the filter element is provided with a closing cap;

[0007] A through groove corresponding to the valve stem is provided inside the body for conveying, and an outflow hole is provided through the through groove on one side close to the inside of the housing;

[0008] The inner wall of the receiving cover for connection is spirally surrounded by spiral sheets, a cleaning pipe is arranged on the central side of the machine body, and the cleaning pipe runs through the inside of the machine body and is obliquely provided with a drainage pipe;

[0009] The outer wall of the valve stem for adjustment close to the bottom end of the accommodating cover is provided with two through holes, and the positions of the two through holes are staggered with each other;

[0010] A plurality of sliding blocks are arranged around the outer wall of the top of the filter element for filtering, near the closing cap, and the sliding blocks slide inside the sliding ring. A pressing spring is arranged on the top of the closing cap.

[0011] Preferably, a connecting ring is fixedly connected to the top of the containing cover, and a threaded sleeve is threadedly connected to the top outer wall of the connecting ring, and the inside of the threaded sleeve is clamped with the bottom end of the sliding ring.

[0012] Preferably, the sliding ring is provided with a plurality of sliding grooves for sliding with the slider, and the top of the sliding ring is connected with an extrusion bolt via a thread, and the bottom of the extrusion bolt is rotatably connected and fit with the extrusion spring.

[0013] Preferably, a receiving funnel is provided inside the body near the bottom of the filter element, an inner flow hole is provided at the inner bottom end of the through groove corresponding to the receiving funnel, and two through holes on the outer wall of the valve stem correspond to the positions of the inner flow hole and the outer flow hole respectively.

[0014] Preferably, a liquid outlet pipe is obliquely arranged at one end of the body away from the external flow hole, a liquid inlet connected to the internal flow hole and the external flow hole is arranged at the bottom of the body, and a stop rod is penetrated at one end of the liquid inlet close to the through groove.

[0015] Preferably, the end of the valve stem away from the through-slot passes through the interior of the body and is connected to a rotating rod, and the bottom of the end of the valve stem close to the interior of the body is provided with a receiving groove, and the receiving groove is fan-shaped, and the gear lever is located inside the receiving groove.

[0016] Preferably, the outer wall of the closing cap fits with the inner wall of the sliding ring, the filter element is conical, and the top of the filter element is inclined toward the center, the bottom diameter of the filter element is larger than the top diameter, the bottom diameter of the filter element corresponds to the inner diameter of the sliding ring, and the bottom end of the inner wall of the filter element is inclined to both sides.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When in use, since the filter element is in the shape of a cone, the top of the filter element is inclined toward the center, and thus during filtering, the impurities can be prevented from contacting the side wall of the filter element with the impurities in the process of falling back to the bottom, thereby preventing the impurities from adhering to the inner wall and clogging the inner wall, so that the impurities can fall back into the receiving funnel. At the same time, when cleaning is needed, the water pressure delivered to the inside of the filter element can be conveniently increased, so that the filter element can be lifted up and moved toward the top along the sliding groove of the inner wall of the sliding ring through the slider, thereby removing the obstruction of the bottom, so that the impurities in the receiving funnel can be driven and discharged to the outside and discharged through the liquid outlet pipe. The filter element can be easily cleaned by the user, and the filter element can be easily cleaned by the user. The filter element can be easily cleaned by the user. The filter element can be easily cleaned by the user. The user can also clean the filter element by the cleaning pipe. The cleaning pipe and the spiral sheet can be used to guide the liquid to rotate. At the same time, the liquid outside the filter element is filtered back to the inside of the filter element, so that the debris attached to the filter element can be effectively cleaned, collected by the containing funnel, and finally discharged through the inner flow hole. The extrusion bolt can be turned to release the extrusion of the extrusion spring, and the closing cap can be pulled to drive the filter element to the top and then release the connection of the closing cap, so that the filter element can be easily cleaned or directly replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a high pressure filter proposed by the utility model;

[0020] Figure 2 This is a cross-sectional view of the internal structure of a high-pressure filter proposed by the utility model;

[0021] Figure 3 This is a side view of the internal structure of a high-pressure filter proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of a high-pressure filter cleaning tube proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the top structure of a high-pressure filter element proposed by the utility model;

[0024] Figure 6 The utility model is a schematic diagram of the structure of a high-pressure filter adjusting rod.

[0025] In the figure: 1. body; 101. liquid inlet; 102. liquid outlet; 2. containing cover; 201. connecting ring; 202. threaded sleeve; 203. spiral sheet; 3. sliding ring; 301. sliding groove; 4. valve stem; 401. rotating rod; 402. through hole; 403. containing groove; 404. gear lever; 5. filter element; 501. slider; 502. containing funnel; 6. closing cap; 601. extrusion spring; 602. extrusion bolt; 7. cleaning pipe; 701. drainage pipe; 8. through groove; 801. internal flow hole; 802. external flow hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1 , Figure 2 As shown, a high-pressure filter comprises a body 1, a housing cover 2 and a sliding ring 3. The housing cover 2 is arranged on the top of the body 1, and the sliding ring 3 is arranged on the top of the housing cover 2. A valve stem 4 is arranged at one end of the body 1, and a filter element 5 is arranged through the inside of the housing cover 2, and a closing cap 6 is arranged on the top of the filter element 5. A through groove 8 corresponding to the valve stem 4 is opened inside the body 1 for conveying, and an outflow hole 802 is arranged through the through groove 8 near the inside of the housing cover 2; the inner wall of the housing cover 2 for connection is a spiral ring A spiral sheet 203 is arranged around it, a cleaning pipe 7 is arranged on the central side of the body 1, and a drainage pipe 701 is arranged obliquely inside the cleaning pipe 7 penetrating the inside of the body 1; two through holes 402 are arranged on the outer wall of the valve stem 4 for adjustment near the bottom end of the accommodating cover 2, and the positions of the two through holes 402 are staggered with each other; a plurality of sliders 501 are arranged around the top outer wall of the filter element 5 for filtering near the closing cap 6, and the sliders 501 slide with the inside of the sliding ring 3, and an extrusion spring 601 is arranged on the top of the closing cap 6.

[0028] Reference Figure 3 , Figure 5 As shown, a connecting ring 201 is fixedly connected to the top of the accommodating cover 2, and a threaded sleeve 202 is threadedly connected to the top outer wall of the connecting ring 201, the interior of the threaded sleeve 202 is mutually clamped with the bottom end of the sliding ring 3, a plurality of sliding grooves 301 that slide with the slider 501 are provided inside the sliding ring 3, and an extrusion bolt 602 is threadedly connected to the top of the inner top of the sliding ring 3, the bottom of the extrusion bolt 602 is rotatably connected and fit with the extrusion spring 601, the extrusion bolt 602 can be rotated to release the extrusion of the extrusion spring 601, and then the closing cap 6 can be pulled to drive the filter element 5 to be pulled out to the top, and then the connection of the closing cap 6 can be released, so that the filter element 5 can be conveniently cleaned or directly replaced.

[0029] Reference Figure 3 , Figure 4As shown, a receiving funnel 502 is provided at the bottom of the body 1 near the filter element 5, an inner flow hole 801 is provided at the inner bottom end of the through groove 8 corresponding to the receiving funnel 502, and two through holes 402 on the outer wall of the valve stem 4 correspond to the inner flow hole 801 and the outer flow hole 802 respectively. The outer wall of the closing cap 6 fits with the inner wall of the sliding ring 3, the filter element 5 is conical, and the top of the filter element 5 is inclined toward the center. The bottom diameter of the filter element 5 is larger than the top diameter. The bottom diameter of the filter element 5 corresponds to the inner diameter of the sliding ring 3. The bottom end of the inner wall of the filter element 5 is inclined to both sides. When the liquid pressure inside the filter element 5 is too high, it can The filter element 5 can be lifted up, thereby releasing the connection between the filter element 5 and the receiving funnel 502 to directly discharge the liquid into the receiving cover 2, and finally discharged through the liquid outlet pipe 102 to reduce the pressure, thereby playing a protective role and avoiding damage to the equipment caused by high pressure. At the same time, when in use, the water pressure delivered to the inside of the filter element 5 can be conveniently increased, thereby lifting the filter element 5, so that it can be moved to the top through the slider 501 along the sliding groove 301 on the inner wall of the sliding ring 3, thereby releasing the obstruction at the bottom, so that the debris inside the receiving funnel 502 can be driven and discharged to the outside, and discharged through the liquid outlet pipe 102, thereby realizing automatic cleaning without manual operation.

[0030] Reference Figure 4 , Figure 6 As shown, a liquid outlet pipe 102 is obliquely arranged at one end of the body 1 away from the external flow hole 802, a liquid inlet 101 connected with the internal flow hole 801 and the external flow hole 802 is arranged at the bottom of the body 1, a shift rod 404 is arranged at one end of the liquid inlet 101 close to the through groove 8, a valve stem 4 passes through the body 1 at one end away from the through groove 8 and is connected to a rotating rod 401, a receiving groove 403 is arranged at the bottom of one end of the valve stem 4 close to the body 1, and the receiving groove 403 is fan-shaped, the shift rod 404 is located inside the receiving groove 403, and the rotating rod 401 is arranged at one end of the valve stem 4 close to the body 1. The movable rod 401 drives the valve stem 4 to rotate. When the through hole 402 inside the valve stem 4 is connected to the external flow hole 802, the liquid at the liquid inlet 101 passes through the external flow hole 802 to reach between the containing cover 2 and the outer wall of the filter element 5, and then is discharged through the liquid outlet pipe 102 without filtering. When the valve stem 4 is rotated to make the through hole 402 correspond to the internal flow hole 801, the liquid can pass through the internal flow hole 801 to reach the containing funnel 502, and then reach the inside of the filter element 5, be filtered by the filter element 5 to reach the outside, and finally be discharged through the liquid outlet pipe 102.

[0031] Working principle: When in use, the corresponding liquid inlet 101 can be conveniently connected to the delivery pipeline, and the liquid outlet pipe 102 can be connected to the discharge pipeline. Then, during operation, the valve stem 4 is driven to rotate by rotating the rod 401. When the through hole 402 inside the valve stem 4 is connected to the external flow hole 802, the liquid in the liquid inlet 101 passes through the external flow hole 802 to reach between the containing cover 2 and the outer wall of the filter element 5, and then is discharged through the liquid outlet pipe 102 without filtering. When the valve stem 4 is rotated to make the through hole 402 correspond to the internal flow hole 801, the liquid can pass through the internal flow hole 801 to reach the containing funnel. 502, and then reach the interior of the filter element 5, filter through the filter element 5 to reach the outside, and finally be discharged through the liquid outlet pipe 102. At the same time, since the top of the filter element 5 is provided with an extrusion spring 601, when the liquid pressure inside the filter element 5 is too high, the filter element 5 can be lifted up, and then the connection between the filter element 5 and the containing funnel 502 is released to directly discharge the liquid into the containing cover 2, and finally be discharged through the liquid outlet pipe 102 to achieve pressure reduction, which plays a protective role and avoids damage to the equipment caused by high pressure. At the same time, when in use, since the filter element 5 is in a conical shape, the top of the filter element is inclined toward the center, and then during filtration, the impurities can fall back to the bottom in the process of being filtered. The side wall of the filter element 5 can be prevented from contacting with the debris, thereby preventing the debris from adhering to the inner wall, thereby preventing the debris from clogging the inner wall, and thereby causing the debris to fall back into the receiving funnel 502. At the same time, when cleaning is needed, the water pressure delivered to the inside of the filter element 5 can be conveniently increased, thereby lifting the filter element 5, allowing it to move toward the top along the sliding groove 301 on the inner wall of the sliding ring 3 through the slider 501, thereby removing the obstruction at the bottom, and allowing the debris inside the receiving funnel 502 to be driven and discharged to the outside and discharged through the liquid outlet pipe 102, thereby realizing automatic cleaning without manual operation, and also being able to stop the delivery of liquid from the liquid inlet 101, thereby removing the obstruction at the bottom. The cleaning liquid is transported to the interior of the containing cover 2 through the cleaning pipe 7, and then guided by the drainage pipe 701 and the spiral sheet 203, so that the liquid can rotate, and at the same time, the liquid outside the filter element 5 is filtered back to the inside of the filter element 5, so that the debris attached to the filter element 5 can be effectively cleaned, collected by the containing funnel 502, and finally discharged through the inner flow hole 801, and the extrusion bolt 602 can be rotated to release the extrusion of the extrusion spring 601, and then the closing cap 6 can be pulled to drive the filter element 5 to be pulled out to the top, and then the connection of the closing cap 6 can be released, so that the filter element 5 can be further cleaned or directly replaced.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high pressure filter, comprising a body (1), a housing (2) and a sliding ring (3), characterized in that: A containing cover (2) is arranged on the top of the body (1), a sliding ring (3) is arranged on the top of the containing cover (2), a valve stem (4) is arranged at one end inside the body (1), a filter element (5) is arranged through the inside of the containing cover (2), and a closing cap (6) is arranged on the top of the filter element (5); A through groove (8) corresponding to and sleeved with the valve stem (4) is provided inside the body (1) for conveying, and an outflow hole (802) is provided through the through groove (8) on one side close to the inside of the containing cover (2); The inner wall of the receiving cover (2) for connection is provided with a spiral sheet (203) in a spiral shape, a cleaning pipe (7) is provided on one side of the center of the machine body (1), and the cleaning pipe (7) runs through the inside of the machine body (1) and is provided with a drainage pipe (701) at an angle; The outer wall of the valve stem (4) used for adjustment, which is close to the bottom end of the accommodating cover (2), is provided with two through holes (402), and the positions of the two through holes (402) are staggered with each other; A plurality of sliding blocks (501) are arranged around the top outer wall of the filter element (5) for filtering, near the closing cap (6). The sliding blocks (501) slide inside the sliding ring (3), and a pressing spring (601) is arranged at the top end of the closing cap (6).

2. A high pressure filter according to claim 1, characterized in that: The top of the containing cover (2) is fixedly connected to a connecting ring (201), and the top outer wall of the connecting ring (201) is connected to a threaded sleeve (202) via a thread, and the interior of the threaded sleeve (202) is mutually clamped with the bottom end of the sliding ring (3).

3. A high pressure filter according to claim 1, characterized in that: The sliding ring (3) is provided with a plurality of sliding grooves (301) that slide with the slider (501), and the top of the inner part of the sliding ring (3) is connected with a squeezing bolt (602) through a thread, and the bottom of the squeezing bolt (602) is rotatably connected and fit with the squeezing spring (601).

4. A high pressure filter according to claim 1, characterized in that: A receiving funnel (502) is provided at the bottom of the body (1) near the filter element (5), an inner flow hole (801) is provided at the inner bottom end of the through groove (8) corresponding to the receiving funnel (502), and two through holes (402) on the outer wall of the valve stem (4) correspond to the positions of the inner flow hole (801) and the outer flow hole (802), respectively.

5. A high pressure filter according to claim 4, characterized in that: A liquid outlet pipe (102) is obliquely arranged at one end of the interior of the machine body (1) away from the external flow hole (802); a liquid inlet (101) communicating with the internal flow hole (801) and the external flow hole (802) is arranged at the bottom of the machine body (1); a stop rod (404) is penetrated at one end of the interior of the liquid inlet (101) close to the through groove (8).

6. A high pressure filter according to claim 5, characterized in that: The end of the valve stem (4) away from the through groove (8) passes through the interior of the body (1) and is connected to a rotating rod (401); the bottom of the end of the valve stem (4) close to the interior of the body (1) is provided with a receiving groove (403), and the receiving groove (403) is fan-shaped, and the shift rod (404) is located inside the receiving groove (403).

7. A high pressure filter according to claim 1, characterized in that: The outer wall of the closing cap (6) fits with the inner wall of the sliding ring (3), the filter element (5) is in a conical cylindrical shape, and the top of the filter element (5) is inclined toward the center, the bottom diameter of the filter element (5) is larger than the top diameter, the bottom diameter of the filter element (5) corresponds to the inner diameter of the sliding ring (3), and the bottom end of the inner wall of the filter element (5) is inclined toward both sides.

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