Backwashing system for dismounting-free filter element of metering pump

Abstract

The utility model discloses a backwashing system for a metering pump without dismounting a filter element. The backwashing system comprises a metering pump, an inlet pipe and an outlet pipe, wherein the inlet pipe and the outlet pipe are connected with the metering pump; the backwashing filter is arranged on the inlet pipe, the backwashing pipe is connected with the outlet pipe and the backwashing filter, the blow-off pipe is connected with the backwashing filter, and a filter element is arranged in the backwashing filter. According to the utility model, through the arrangement of the backwashing system, a medium pressurized by the metering pump flows back into the backwashing filter through the backwashing pipe so as to wash a filter element in the backwashing filter, and washed impurities are discharged through the blow-off pipe; when the backwashing filter and the filter element are washed, the backwashing filter and the filter element do not need to be disassembled, so that the backwashing filter and the filter element are convenient and quick to clean.

Description

A backwashing system for metering pumps that does not require disassembly of the filter element. Technical Field

[0001] This utility model relates to metering pumps, specifically a backwashing system for metering pumps that allows for filter element removal without disassembly. Background Technology

[0002] In existing technologies, when cleaning and maintaining the filter element on the inlet pipe of a metering pump is required, the filter must be removed from the inlet pipe or the metering pump before cleaning and maintenance can be performed. This process is cumbersome, and repeated disassembly and reassembly can affect the sealing at the installation point. Therefore, a backflushing system for metering pumps that allows for filter element removal without disassembly is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a backwashing system for metering pumps that allows for filter element removal without disassembly, in order to solve the above problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a backwashing system for a metering pump without disassembling the filter element, comprising a metering pump, an inlet pipe connected to the metering pump, and an outlet pipe; characterized in that it further comprises a backwashing filter installed on the inlet pipe, a backwashing pipe connecting the outlet pipe and the backwashing filter, and a drain pipe connected to the backwashing filter, wherein the backwashing filter contains a filter element.

[0005] Further preferably, it also includes valve one installed on the inlet pipe, valve two installed on the outlet pipe, valve three installed on the backwash pipe, and valve four installed on the drain pipe.

[0006] A further preferred option includes a one-way valve installed on the outlet pipe.

[0007] The beneficial effects of this utility model are as follows: By setting up a backwashing system, the medium pressurized by the metering pump flows back into the backwashing filter through the backwashing pipe to wash the filter element inside the backwashing filter. The impurities washed off are discharged through the drain pipe. When washing the backwashing filter and filter element, there is no need to remove the backwashing filter and filter element. No disassembly is required, making cleaning convenient and quick. Attached Figure Description

[0008] Figure 1 is a schematic diagram of this utility model;

[0009] Figure 2 is a schematic diagram of this utility model.

[0010] Legend: 1. Metering pump; 2. Inlet pipe; 3. Outlet pipe; 4. Backwash filter; 41. Filter element; 5. Drain pipe; 6. Valve 1; 7. Valve 2; 8. Valve 3; 9. Valve 4; 10. Backwash pipe. Detailed Implementation

[0011] The following description, in conjunction with the accompanying drawings, further illustrates the backwashing system for metering pumps that allows for the removal of filter elements.

[0012] It should be noted that all directional indicators such as up, down, left, right, front, back, etc. in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0013] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly; for example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can also mean a mechanical connection, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0014] Referring to Figures 1 and 2, a backwashing system for a metering pump without disassembling the filter element includes a metering pump 1, an inlet pipe 2 and an outlet pipe 3 connected to the metering pump 1; characterized in that it also includes a backwashing filter 4 installed on the inlet pipe 2, a backwashing pipe 10 connecting the outlet pipe 3 and the backwashing filter 4, and a drain pipe 5 connected to the backwashing filter 4, wherein the backwashing filter 4 contains a filter element 41;

[0015] With the backwashing system in place, the medium pressurized by the metering pump 1 flows back through the backwashing pipe 10 to the backwashing filter 4 to flush the filter element 41 inside the backwashing filter 4. The impurities flushed out are discharged through the drain pipe 5. When flushing the backwashing filter 4 and the filter element 41, there is no need to remove the backwashing filter 4 and the filter element 41. No disassembly is required, making cleaning convenient and quick.

[0016] In one embodiment, it also includes valve 6 installed on inlet pipe 2, valve 7 installed on outlet pipe 3, valve 8 installed on backwash pipe, and valve 9 installed on drain pipe 5.

[0017] When using this utility model:

[0018] When in normal use, close valve 38 on the backwash pipe and valve 49 on the drain pipe 5. The metering pump 1 will draw in the medium filtered by the filter element 41 through the inlet pipe 2, pressurize it, and then discharge it through the outlet pipe 3.

[0019] When backwashing and maintenance of the backwash filter 4 and filter element 41 are required, close valve 2 7 on the outlet pipe 3, open valve 3 8 on the backwash pipe and valve 4 9 on the drain pipe 5. The medium pressurized by the metering pump 1 enters the backwash filter 4 through the backwash pipe 10. After entering the backwash filter 4, the pressurized medium flushes the filter element 41 and the backwash filter 4. The impurities flushed off are discharged through the drain pipe 5. After the flushing and maintenance are completed, close valve 3 8 on the backwash pipe and valve 4 9 on the drain pipe 5, and open valve 2 7 on the outlet pipe 3 for normal use.

[0020] The scope of protection of this utility model is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this utility model.

Claims

1. A backwashing system for a metering pump with a filter element that does not require disassembly, comprising a metering pump (1), an inlet pipe (2) connected to the metering pump (1), and an outlet pipe (3); characterized in that... It also includes a backwash filter (4) installed on the inlet pipe (2), a backwash pipe (10) connecting the outlet pipe (3) and the backwash filter (4), and a drain pipe (5) connected to the backwash filter (4), wherein the backwash filter (4) is filled with a filter element (41).

2. The backwashing system for a metering pump without disassembling the filter element according to claim 1, characterized in that: It also includes valve one (6) installed on the inlet pipe (2), valve two (7) installed on the outlet pipe (3), valve three (8) installed on the backwash pipe (10) and valve four (9) installed on the drain pipe (5).

3. The backwashing system for a metering pump without disassembling the filter element according to claim 1, characterized in that: It also includes a check valve installed on the outlet pipe (3).

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