Filter capable of cleaning sewage without cutting off water

Abstract

The utility model relates to a filter capable of cleaning dirt without cutting off water, which comprises a body, a filter screen cavity, a filter cylinder, a first valve clack component, a first valve clack driving component, a second valve clack component, a second valve clack driving component and a bypass pipeline, wherein two sealing surfaces matched with an inlet end and two sealing surfaces matched with an outlet end are arranged in the body; the filter cartridge is mounted in the filter screen cavity, one end directly faces the sealing surface of the inlet end, and the side face directly faces the sealing surface of the outlet end; the first valve clack assembly is installed in the body through the first valve clack driving assembly and is driven by the first valve clack driving assembly to switch positions in the two sealing faces of the inlet end. The second valve clack assembly is installed in the body through the second valve clack driving assembly and is driven by the second valve clack driving assembly to switch positions in the two sealing faces of the outlet end, and the bypass pipeline communicates with the inlet end of the body and the filter screen cavity. Compared with the prior art, the water-supply-free sewage disposal device realizes water-supply-free sewage disposal and has the advantages of compact structure, convenience in use and the like.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a filter capable of cleaning sewage without stopping water. Background Art

[0002] The valve filter is an indispensable device on the pipeline for conveying media. It is usually installed at the inlet end of the pressure reducing valve, pressure relief valve, water level valve or other equipment to eliminate impurities in the medium to protect the normal use of the valve and equipment. The working principle of the valve filter is: when the fluid enters the filter with a built-in filter element, its impurities are blocked and filtered by the filter element, and the clean filtrate after filtration is discharged from the filter outlet. When the garbage deposited in the filter screen reaches a certain amount, the water supply must be stopped and the filter screen must be disassembled for cleaning, otherwise the filter screen may burst, and the head loss will also be very large.

[0003] However, stopping water supply for cleaning will cause production suspension and bring economic losses, so some important processes use two parallel pipes to achieve the purpose of cleaning garbage without stopping water supply. A filter is installed in each pipe and a maintenance gate valve is installed before and after it, that is, two pipes and elbows, two filters, and four gate valves.

[0004] The above solutions require high costs and large space. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a filter with compact structure and non-stop water and sewage cleaning.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A filter for non-stop water cleaning includes a body, the body is a hollow cylindrical structure, and is provided with two sealing surfaces matching with the inlet end and two sealing surfaces matching with the outlet end, and a filter cavity with a sealing surface connected to the inlet end and the outlet end respectively. The filter also includes a filter cartridge, a first valve flap assembly, a first valve flap drive assembly, a second valve flap assembly, a second valve flap drive assembly and a bypass pipeline.

[0008] The filter cartridge is installed in the filter cavity, with one end facing the sealing surface of the inlet end and the side facing the sealing surface of the outlet end; the first valve flap assembly is installed in the body through the first valve flap driving assembly, and is driven by the first valve flap driving assembly to switch positions between the two sealing surfaces of the inlet end; the second valve flap assembly is installed in the body through the second valve flap driving assembly, and is driven by the second valve flap driving assembly to switch positions between the two sealing surfaces of the outlet end, and the bypass pipeline is respectively connected to the inlet end of the body and the filter cavity.

[0009] Furthermore, one end of the two sealing surfaces at the inlet end is close to each other, and the other end is respectively connected to the inner wall of the body to form a V-shaped structure; the first valve flap assembly switches to cover the two sealing surfaces at the inlet end;

[0010] The two sealing surfaces at the outlet end are close to each other at one end and connected to the inner wall of the body at the other end to form a V-shaped structure; the second valve flap assembly switches to cover the two sealing surfaces at the outlet end.

[0011] Furthermore, the first valve flap drive assembly includes a driving shaft and a worm gear operator, the driving shaft is located between the ends of the two sealing surfaces at the inlet end that are close to each other, the driving shaft is rigidly connected to the first valve flap assembly and is driven by the worm gear operator, and the worm gear operator is installed on the outside of the body.

[0012] Furthermore, the second valve flap drive assembly includes a passive shaft, a handle and a locking screw. The passive shaft is located between the ends of the two sealing surfaces at the outlet end that are close to each other. The passive shaft is rigidly connected to the second valve flap assembly and is driven by the handle. The handle is rotatably mounted on the outside of the main body. Two limiting holes are provided on the outside of the main body, respectively corresponding to the two switching positions of the second valve flap assembly. The handle is detachably connected to the two limiting holes by a locking screw.

[0013] Furthermore, the body is provided with a through hole communicating with the filter screen cavity and matching the size of the filter cartridge, and the filter further comprises a filter cartridge cover plate, which is detachably mounted on the body and covers the outside of the through hole.

[0014] Furthermore, the bypass pipeline includes a bypass pipe, a maintenance ball valve and a drain ball valve, one end of the bypass pipe is connected to the inlet end of the body, and the other end is connected to the filter cavity, and the maintenance ball valve and the drain ball valve are both arranged on the bypass pipe.

[0015] Furthermore, the first valve flap assembly and the second valve flap assembly both include a valve flap sheet and vulcanized rubber coated on the outer side of the valve flap sheet blade.

[0016] Furthermore, the filter cartridge is a cylindrical structure and is rolled from a stainless steel porous mesh material.

[0017] Furthermore, the filter further comprises a support plate, which is mounted on the outside of the body, and the first valve flap drive assembly and the second valve flap drive assembly are both mounted on the support plate.

[0018] Furthermore, the main body is an elliptical cylindrical structure.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] (1) The filter provided by the utility model can be cleaned without stopping the water flow. First, the two sealing surfaces at the inlet and outlet ends are arranged, and the valve flap assembly with switchable positions is used to guide the water flow. During normal filtering, the water flows out through the filter cavity. When maintenance and cleaning are required, the water flows out through the top of the filter cavity. Cleaning can be performed in the filter cavity without stopping the water flow. There is no need for the high-cost and high-space arrangement of multiple pipes. The filter has the advantages of compact structure and convenient use.

[0021] (2) The utility model aims at the valve flap driving components at different positions. Taking into account the water flow resistance during driving, a driving shaft and a worm gear operator are provided in the valve flap driving component near the water inlet end, and the valve flap driving component is driven by the worm gear operator; a passive shaft, a handle and a locking screw are provided in the valve flap driving component near the water outlet end, and the valve flap driving component is driven by the handle, so that the structure is easy to operate and the structure cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the working state structure of a filter for non-stop water and sewage cleaning provided in an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the structure of a filter in the maintenance state for non-stop water and sewage cleaning provided in an embodiment of the utility model;

[0024] Figure 3 This is a front view of the external structure of a filter for non-stop water and sewage cleaning provided in an embodiment of the utility model;

[0025] Figure 4 A structural diagram of a valve flap assembly provided in an embodiment of the utility model;

[0026] In the figure, 1, main body, 2, filter cartridge, 3, filter cartridge cover, 4, valve flap assembly, 41, first valve flap assembly, 42, second valve flap assembly, 401, valve flap sheet, 402, vulcanized rubber, 5, passive shaft, 6, active shaft, 7, support plate, 8, worm gear operator, 9, handle, 10, locking screw, 11, limit hole, 12, bypass pipe, 13, inspection ball valve, 14, drain ball valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0031] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] Example 1

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the present embodiment is a filter for non-stop water cleaning, comprising a body 1, the body 1 is a hollow cylindrical structure, and is provided with two sealing surfaces matching with the inlet end and two sealing surfaces matching with the outlet end, and a filter cavity with a sealing surface connected to the inlet end and the outlet end respectively, the filter also comprises a filter cartridge 2, a first valve flap assembly 41, a first valve flap drive assembly, a second valve flap assembly 42, a second valve flap drive assembly and a bypass pipeline,

[0034] The filter cartridge 2 is installed in the filter cavity, with one end facing the sealing surface of the inlet end and the side facing the sealing surface of the outlet end; the first valve flap assembly 41 is installed in the main body 1 through the first valve flap driving assembly, and is driven by the first valve flap driving assembly to switch positions between the two sealing surfaces of the inlet end; the second valve flap assembly 42 is installed in the main body 1 through the second valve flap driving assembly, and is driven by the second valve flap driving assembly to switch positions between the two sealing surfaces of the outlet end, and the bypass pipeline is connected to the inlet end of the main body 1 and the filter cavity respectively.

[0035] The two sealing surfaces at the inlet and outlet ends are provided to cooperate with the rotating valve flap assembly 4 for drainage. During normal filtration, the valve flap assembly 4 blocks the two sealing surfaces away from the filter screen cavity to achieve guidance, so that water flows out through the filter screen cavity. Figure 1 When maintenance and cleaning are required, the valve flap assembly 4 blocks the two sealing surfaces at both ends of the filter cavity, allowing water to flow out from the top of the filter cavity, and cleaning can be performed in the filter cavity without stopping the water, such as Figure 2 shown.

[0036] The setting of the sealing surface can achieve the above functions without making a sole limitation. Optionally, in this embodiment, one end of the two sealing surfaces at the inlet end is close to each other, and the other end is respectively connected to the inner wall of the body 1 to form a V-shaped structure; the first valve flap assembly 41 switches to block the two sealing surfaces at the inlet end;

[0037] One end of the two sealing surfaces at the outlet end is close to each other, and the other end is respectively connected to the inner wall of the body 1 to form a V-shaped structure; the second valve flap assembly 42 switches to cover the two sealing surfaces at the outlet end.

[0038] As a preferred embodiment, considering the water flow resistance, it is difficult to rotate the first valve flap assembly manually. In this regard, in this embodiment, the first valve flap driving assembly includes a driving shaft 6 and a worm gear operator 8. The driving shaft 6 is located between the ends of the two sealing surfaces at the inlet end that are close to each other. The driving shaft 6 is hard-connected to the first valve flap assembly 41 and is driven by the worm gear operator 8. The worm gear operator 8 is installed on the outside of the main body 1.

[0039] Specifically, in this embodiment, the driving shaft 6 is installed at the shaft hole at the inlet end of the body 1, and the part passing through the body 1 is hard-connected with the worm gear operating machine 8 by a key.

[0040] As a preferred embodiment, after the first valve flap driving assembly realizes the preliminary guide switching of the water flow, the position of the second valve flap assembly can be switched relatively easily to adapt to the flow of water. To this end, in this embodiment, manual switching is adopted. The second valve flap driving assembly includes a passive shaft 5, a handle 9 and a locking screw 10. The passive shaft 5 is located between the ends of the two sealing surfaces at the outlet end that are close to each other. The passive shaft 5 is hard-connected to the second valve flap assembly 42 and is driven by the handle 9. The handle 9 can be rotatably installed on the outside of the main body 1. Two limiting holes 11 are provided on the outside of the main body 1, which correspond to the two switching positions of the second valve flap assembly 42 respectively. The handle 9 is detachably connected to the two limiting holes 11 through the locking screw 10.

[0041] Specifically, in this embodiment, the passive shaft 5 is installed in the shaft hole at the outlet end of the main body 1 and is rigidly connected to the valve flap assembly 4 at the outlet end with a pin. The passive shaft 5 passes through the main body 1 and is connected to the handle 9 with a flat head for transmission. The handle 9 is fixed at the limiting hole 11 at the relative position by a locking screw 10.

[0042] Alternatively, if Figure 4 As shown, the first valve flap assembly 41 and the second valve flap assembly 42 both include a valve flap sheet 401 and a vulcanized rubber 402 coated on the outside of the valve flap sheet blade. The structure of the valve flap assembly 4 is not limited to any specific structure, and it is sufficient to be able to stably guide the water flow in a water flow environment.

[0043] To facilitate cleaning of the filter cartridge 2, preferably, the main body 1 is provided with a through hole connected to the filter screen cavity and matching the size of the filter cartridge 2. The filter also includes a filter cartridge cover 3, which can be detachably mounted on the main body 1 and covers the outside of the through hole to act as a seal.

[0044] Optionally, the bypass pipeline includes a bypass pipe 12, a maintenance ball valve 13 and a drain ball valve 14, one end of the bypass pipe 12 is connected to the inlet end of the main body 1, and the other end is connected to the filter cavity, and the maintenance ball valve 13 and the drain ball valve 14 are both arranged on the bypass pipe 12.

[0045] During normal operation, the inspection ball valve and the drain valve are both in a normally closed state. During inspection and cleaning, the inspection ball valve 13 is in a closed state, and the drain ball valve 14 is in an open state.

[0046] In this embodiment, the filter cartridge 2 is a cylindrical structure, made of a stainless steel porous mesh material, and installed in the filter cavity of the body 1. The mesh size of the filter cartridge 2 depends on the size of the particles to be filtered, and the strength design of the filter cartridge 2 depends on the pressure difference.

[0047] The filter also includes a support plate 7, which is installed on the outside of the main body 1, and the first valve flap drive assembly and the second valve flap drive assembly are both installed on the support plate 7; the support plate 7 is in the shape of a square flat plate and is connected to four pillars outside the main body 1, and a worm gear operator 8 is installed on the upper part of the support plate 7.

[0048] The body 1 is an elliptical cylindrical structure, the inlet and outlet ends are flange-connected, and its four sealing surfaces cooperate with two valve flap assemblies 4.

[0049] Specific operation process and application scenarios:

[0050] The inlet and outlet ends of the main body are equipped with pressure gauges. Once the pressure difference between the inlet and outlet ends reaches a certain value during operation (generally set at about 0.05Mpa), the filter cartridge must be manually switched from the working state to the maintenance state. When the worm gear operator rotates, the active shaft rotates clockwise, and the active shaft drives the valve disc assembly to rotate to the outlet end of the filter cartridge. Remove the locking screw, rotate the handle counterclockwise to drive the passive shaft to rotate, and the passive shaft drives the valve disc assembly to rotate to the inlet end of the filter cartridge, and lock the handle with the locking screw. At this time, the inlet and outlet ends of the filter cartridge cavity are closed. At this time, keep the maintenance ball valve in the closed state, open the water release ball valve, and after the water in the filter cartridge cavity is drained, the filter cartridge can be cleaned or replaced. Figure 2 When the cleaning or replacement work is completed, close the drain ball valve and open the inspection ball valve to allow the inlet pressure to enter the filter cartridge cavity to balance the pressure difference of the valve disc, and then turn the worm gear operator and handle to switch the valve disc to the other two sealing pairs. After the switch is completed, close the inspection ball valve. Figure 1 shown.

[0051] Applications:

[0052] 1. Important water supply process. If the water supply is cut off, it will cause great economic losses or complaints.

[0053] 2. There is a lot of garbage in the water. If you install a general filter, it will cause frequent water outages and garbage cleaning.

[0054] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A filter for non-stop water cleaning, comprising a body (1), characterized in that: The body (1) is a hollow cylindrical structure, and is provided with two sealing surfaces cooperating with the inlet end and two sealing surfaces cooperating with the outlet end, and a filter cavity having a sealing surface connected to the inlet end and the outlet end respectively. The filter also includes a filter cartridge (2), a first valve flap assembly (41), a first valve flap drive assembly, a second valve flap assembly (42), a second valve flap drive assembly and a bypass pipeline. The filter cartridge (2) is installed in the filter screen cavity, with one end facing the sealing surface of the inlet end and the side facing the sealing surface of the outlet end; the first valve flap assembly (41) is installed in the body (1) through the first valve flap driving assembly, and is driven by the first valve flap driving assembly to switch positions between the two sealing surfaces of the inlet end; the second valve flap assembly (42) is installed in the body (1) through the second valve flap driving assembly, and is driven by the second valve flap driving assembly to switch positions between the two sealing surfaces of the outlet end, and the bypass pipeline is connected to the inlet end of the body (1) and the filter screen cavity respectively.

2. A filter for non-stop water cleaning according to claim 1, characterized in that: The two sealing surfaces at the inlet end are close to each other at one end and connected to the inner wall of the body (1) at the other end, forming a V-shaped structure; the first valve flap assembly (41) switches to cover the two sealing surfaces at the inlet end; The two sealing surfaces at the outlet end are close to each other at one end and connected to the inner wall of the body (1) at the other end, forming a V-shaped structure; the second valve flap assembly (42) switches to block the two sealing surfaces at the outlet end.

3. A filter for non-stop water cleaning according to claim 2, characterized in that: The first valve flap drive assembly comprises a driving shaft (6) and a worm gear operator (8), wherein the driving shaft (6) is located between the two end portions of the inlet end where the sealing surfaces are close to each other, the driving shaft (6) is rigidly connected to the first valve flap assembly (41) and is driven by the worm gear operator (8), and the worm gear operator (8) is mounted on the outside of the body (1).

4. A filter for non-stop water cleaning according to claim 2, characterized in that: The second valve flap drive assembly comprises a passive shaft (5), a handle (9) and a locking screw (10); the passive shaft (5) is located between the ends of the two sealing surfaces at the outlet end which are close to each other; the passive shaft (5) is rigidly connected to the second valve flap assembly (42) and is driven by the handle (9); the handle (9) is rotatably mounted on the outside of the body (1); two limiting holes (11) are provided on the outside of the body (1), respectively corresponding to the two switching positions of the second valve flap assembly (42); the handle (9) is detachably connected to the two limiting holes (11) via the locking screw (10).

5. The filter for non-stop water cleaning according to claim 1, characterized in that: The body (1) is provided with a through hole communicating with the filter screen cavity and matching the size of the filter cartridge (2); the filter further comprises a filter cartridge cover plate (3) which is detachably mounted on the body (1) and covers the outside of the through hole.

6. The filter for non-stop water cleaning according to claim 1, characterized in that: The bypass pipeline comprises a bypass pipe (12), a maintenance ball valve (13) and a drain ball valve (14); one end of the bypass pipe (12) is connected to the inlet end of the body (1), and the other end is connected to the filter cavity; the maintenance ball valve (13) and the drain ball valve (14) are both arranged on the bypass pipe (12).

7. The filter for non-stop water cleaning according to claim 1, characterized in that: The first valve flap assembly (41) and the second valve flap assembly (42) both comprise a valve flap sheet (401) and vulcanized rubber (402) covering the outer side of the blade of the valve flap sheet (401).

8. The filter for non-stop water cleaning according to claim 1, characterized in that: The filter cartridge (2) is a cylindrical structure and is rolled from a stainless steel porous mesh material.

9. The filter for non-stop water cleaning according to claim 1, characterized in that: The filter further comprises a support plate (7), wherein the support plate (7) is mounted on the outside of the body (1), and the first valve flap drive assembly and the second valve flap drive assembly are both mounted on the support plate (7).

10. The filter for non-stop water cleaning according to claim 1, characterized in that: The main body (1) is an elliptical cylindrical structure.

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