High-pressure pump capable of conveniently filtering impurities

Abstract

The utility model relates to the technical field of high-pressure pumps, in particular to a high-pressure pump convenient for filtering impurities, which comprises a pump body, a water inlet pipe, a first water inlet branch pipe, a second water inlet branch pipe and a water conveying pipe, the ends, away from the water inlet pipe, of the first water inlet branch pipe and the second water inlet branch pipe communicate with the water conveying pipe. A first water supply valve is arranged on the first water inlet branch pipe, a first filter screen is arranged on the first water inlet branch pipe, and a first water outlet pipe is arranged on the pipe section, between the first water supply valve and the first filter screen, of the first water inlet branch pipe; a second water supply valve is arranged on the second water inlet branch pipe, a second filter screen is arranged on the second water inlet branch pipe, a second water outlet pipe is arranged on the pipe section, between the second water supply valve and the second filter screen, of the second water inlet branch pipe, and water outlet valves are arranged on the first water outlet pipe and the second water outlet pipe. According to the utility model, impurities on the filter screen at the water inlet end of the high-pressure pump can be conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure pumps, in particular to a high-pressure pump which is convenient for filtering impurities. Background Art

[0002] A high-pressure pump is a device that provides high-pressure water. It can provide high-pressure power for high-pressure rotary spraying cement slurry. It can be used for strengthening the foundation of buildings, roads, etc. It can also be used in the fields of high-pressure water jet assisted rock breaking and coal dropping, fluid supply for underground hydraulic props, pumping high-pressure water for anchored hydraulic expansion metal anchor rods, dredging and cleaning of large underground pipelines. According to the medium, high-pressure pumps can be divided into high-pressure plunger pumps, high-pressure reciprocating pumps, high-pressure electric pressure test pumps and high-pressure cleaning pumps.

[0003] High-pressure pumps are used in a variety of scenarios, and the water they transport inevitably contains impurities. In order to improve the quality of the water being transported, a filter is usually installed at the water inlet of the high-pressure pump or on the pipeline at the water inlet end. If the filter is clogged, it will affect the water intake, and then affect the water output and pressure. In particular, when the flow rate of the water transported by the high-pressure pump is fast, impurities accumulate on the filter quickly. At this time, the filter needs to be cleaned or replaced to solve the above problem.

[0004] In the related art, when the filter at the water inlet end of the high-pressure pump is clogged, it is usually necessary to shut down the high-pressure pump, then disassemble the filter, and clean the impurities that clog the mesh of the filter. The cleaned filter must be installed again at the water inlet end of the high-pressure pump before the high-pressure pump can be started again. The method of cleaning the filter is relatively cumbersome, which will affect the normal operation of the high-pressure pump, and then affect the normal water supply production activities of the high-pressure pump. Utility Model Content

[0005] The utility model aims to provide a high-pressure pump which is convenient for filtering impurities, so as to solve the problem that impurities on the filter screen of the high-pressure pump are inconvenient to clean.

[0006] The utility model is realized by the following technical solutions:

[0007] A high-pressure pump for conveniently filtering impurities comprises a pump body, and also comprises a water inlet pipe, a first water inlet branch pipe, a second water inlet branch pipe and a water delivery pipe, wherein one end of the water inlet pipe is connected to the water inlet end of the pump body, and the other end is respectively connected to the first water inlet branch pipe and the second water inlet branch pipe, and the ends of the first water inlet branch pipe and the second water inlet branch pipe away from the water inlet pipe are both connected to the water delivery pipe; a first water supply valve is arranged on the first water inlet branch pipe section near one end of the pump body of the first water supply valve, a first filter screen is arranged on the first water inlet branch pipe section between the first water supply valve and the first filter screen, a first water outlet pipe is arranged on the second water inlet branch pipe section between the first water supply valve and the first filter screen, and a second water supply valve is arranged on the second water inlet branch pipe section near one end of the pump body of the second water supply valve, a second filter screen is arranged on the second water outlet pipe on the second water inlet branch pipe section between the second water supply valve and the second filter screen, and water outlet valves are arranged on the first water outlet pipe and the second water outlet pipe.

[0008] Furthermore, one end of the first water outlet pipe away from the first water inlet branch pipe is connected to a sewage tank, and one end of the second water outlet pipe away from the second water inlet branch pipe is connected to the sewage tank.

[0009] Furthermore, the first filter is detachably connected to the first water inlet branch pipe, the second filter is detachably connected to the second water inlet branch pipe, and a first stop valve is provided on the first water inlet branch pipe section near one end of the pump body of the first filter, and a second stop valve is provided on the second water inlet branch pipe section near one end of the pump body of the second filter.

[0010] Furthermore, the first filter screen and the second filter screen have the same structure and both include steel plates, a plurality of filter holes are provided in the middle of the steel plates, abutment portions for placing sealing gaskets are provided on both sides of the steel plates located at the outer circles of the plurality of filter holes, a plurality of positioning holes for inserting bolts are provided in the circumferential direction on the steel plates at the outer circles of the abutment portions, the first water inlet branch pipe and the second water inlet branch pipe both clamp and fix the corresponding steel plates by two flanges, and the plurality of filter holes on the two steel plates are both located inside the corresponding first water inlet branch pipe or the second water inlet branch pipe.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] In the utility model, when the high-pressure pump of the present scheme is used, initially, only one of the first water supply valve and the second water supply valve is opened, for example, the first water supply valve is opened, and the second water supply valve is closed, and the two water outlet valves are closed at the same time. At this time, the high-pressure pump supplies water to the pump outlet through the water delivery pipe, the first water inlet branch pipe and the water inlet pipe, wherein the first filter screen filters and intercepts impurities in the water flowing through. When there are too many impurities adhering to the first filter screen, the water supply of the first water inlet branch pipe will be reduced. At this time, the second water supply valve can be opened, the first water supply valve can be closed, and the water outlet valve on the first water outlet pipe can be opened at the same time. At this time, the high-pressure pump supplies water to the pump outlet through the water delivery pipe, the second water inlet branch pipe and the water inlet pipe, wherein the second filter screen filters and intercepts impurities in the water flowing through. When there are too many impurities adhering to the first filter screen, the water supply of the first water inlet branch pipe will be reduced. At this time, the second water supply valve can be opened, the first water supply valve can be closed, and the water outlet valve on the first water outlet pipe can be opened. The net filters and intercepts impurities in the water flowing through, and at the same time, the water in the filtered water inlet pipe flows into the first water inlet branch pipe, and the first filter screen can be reversely flushed and washed when the water passes through the first filter screen, and the impurities adhered to the first filter screen can be transported from the first water inlet branch pipe to the first water outlet pipe, and finally the impurities are discharged through the first water outlet pipe; when the second filter screen is blocked, the second filter screen can be reversely flushed in the same way, so that the first filter screen and the second filter screen can be flushed in a cycle, reducing the operation of removing and cleaning the filter screen, and the high-pressure pump can be kept open when cleaning the filter screen, which can reduce the impact of the high-pressure pump on the water supply activities and make cleaning the filter screen more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model.

[0014] In the attached picture:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 For the utility model Figure 1 Enlarged view of part A in the middle;

[0017] Figure 3 This is a partial schematic diagram of the present invention, intended to illustrate the structure of the filter screen.

[0018] Marks and corresponding parts names in the attached drawings:

[0019] 1. Pump body; 2. Water inlet pipe; 3. First water inlet branch pipe; 4. Second water inlet branch pipe; 5. Water delivery pipe; 6. First water supply valve; 7. First filter screen; 8. First water outlet pipe; 9. Second water supply valve; 10. Second filter screen; 11. Second water outlet pipe; 12. Water outlet valve; 13. Sewage tank; 14. First stop valve; 15. Second stop valve; 16. Steel plate; 17. Filter hole; 18. Abutment; 19. Positioning hole; 20. Flange; 21. Sealing gasket. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the embodiments and drawings. The schematic implementation mode and description of the utility model are only used to explain the utility model and are not intended to limit the utility model. It should be noted that the utility model is already in the actual development and use stage.

[0021] Example 1

[0022] A high-pressure pump that is convenient for filtering impurities, refer to Figure 1 , Figure 2 , combined with Figure 3 , including a pump body 1, and also including a water inlet pipe 2, a first water inlet branch pipe 3, a second water inlet branch pipe 4 and a water delivery pipe 5, one end of the water inlet pipe 2 is connected to the water inlet end of the pump body 1, and the other end is respectively connected to the first water inlet branch pipe 3 and the second water inlet branch pipe 4, and the ends of the first water inlet branch pipe 3 and the second water inlet branch pipe 4 away from the water inlet pipe 2 are both connected to the water delivery pipe 5; the first water inlet branch pipe 3 is provided with a first water supply valve 6, and the first water supply valve 6 is provided on the pipe section of the first water inlet branch pipe 3 close to one end of the pump body 1 There is a first filter 7, and a first water outlet pipe 8 is arranged on the first water inlet branch pipe 3 section between the first water supply valve 6 and the first filter 7; a second water supply valve 9 is arranged on the second water inlet branch pipe 4, and a second filter 10 is arranged on the second water inlet branch pipe 4 section near one end of the second water supply valve 9 to the pump body 1, a second water outlet pipe 11 is arranged on the second water inlet branch pipe 4 section between the second water supply valve 9 and the second filter 10, and water outlet valves 12 are arranged on the first water outlet pipe 8 and the second water outlet pipe 11.

[0023] When the high-pressure pump of the present invention is used, initially, only one of the first water supply valve 6 and the second water supply valve 9 is opened. For example, the first water supply valve 6 is opened, and the second water supply valve 9 is closed. At the same time, the two water outlet valves 12 are closed. At this time, the high-pressure pump supplies water to the pump outlet through the water pipe 5, the first water inlet branch pipe 3 and the water inlet pipe 2, wherein the first filter screen 7 filters and intercepts impurities in the water flowing through. When there are too many impurities adhering to the first filter screen 7, the water supply of the first water inlet branch pipe 3 will be reduced. At this time, the second water supply valve 9 can be opened, the first water supply valve 6 can be closed, and the water outlet valve 12 on the first water outlet pipe 8 can be opened. At this time, the high-pressure pump supplies water to the pump outlet through the water pipe 5, the second water inlet branch pipe 4 and the water inlet pipe 2. 0 filters and intercepts impurities in the water flowing through, and at the same time, the water in the filtered water inlet pipe 2 flows into the first water inlet branch pipe 3, and the water can reversely flush and flush the first filter screen 7 when passing through the first filter screen 7, and the impurities adhering to the first filter screen 7 can be transported from the first water inlet branch pipe 3 to the first water outlet pipe 8, and finally the impurities are discharged by the first water outlet pipe 8; when the second filter screen 10 is blocked, the second filter screen 10 can be reversely flushed in the same way, so that the first filter screen 7 and the second filter screen 10 can be flushed cyclically, reducing the operation of removing the filter screen and then cleaning the filter screen, and the high-pressure pump can be kept open when cleaning the filter screen, which can reduce the impact of the high-pressure pump on the water supply activity and make cleaning the filter screen more convenient. It should be noted that due to the large number of pipelines, each pipeline in the attached figure is only represented by a line, and is mainly used to represent the relevant connection relationship.

[0024] Example 2

[0025] The difference between this embodiment and embodiment 1 is that in this embodiment, referring to Figure 1 , the end of the first water outlet pipe 8 away from the first water inlet branch pipe 3 is connected to the sewage tank 13, and the end of the second water outlet pipe 11 away from the second water inlet branch pipe 4 is connected to the sewage tank 13; when the water outlet valve 12 on the corresponding water outlet pipe is opened, the impurities on the corresponding filter screen can be flushed and discharged into the sewage tank 13 for temporary storage, which is convenient for the subsequent unified recovery and treatment of the impurities in the sewage tank 13. The other structures of this embodiment are the same as those of embodiment 1, so they are not repeated here.

[0026] Example 3

[0027] The difference between this embodiment and embodiment 1 is that in this embodiment, referring to Figure 1 , Figure 2, the first filter screen 7 is detachably connected to the first water inlet branch pipe 3, the second filter screen 10 is detachably connected to the second water inlet branch pipe 4, and a first stop valve 14 is provided on the first water inlet branch pipe 3 section of the first filter screen 7 near one end of the pump body 1, and a second stop valve 15 is provided on the second water inlet branch pipe 4 section of the second filter screen 10 near one end of the pump body 1. When there are many impurities in the water supplied by the high-pressure pump, it indicates that the filter screen being used is damaged. At this time, the corresponding first stop valve 14 or second stop valve 15 can be closed. For example, when the filtering effect of the first filter screen 7 is poor, the first water supply valve 6 and the first stop valve 14 can be closed, and then the first filter screen 7 can be disassembled to facilitate repair or replacement of the first filter screen 7; if the second filter screen 10 is damaged, it can also be repaired or replaced in the same way, which will not be described in detail in this embodiment. The other structures of this embodiment are the same as those of embodiment 1, so they will not be described in detail.

[0028] Example 4

[0029] Based on Example 3, in this example, refer to Figure 1 , Figure 2 , combined with Figure 3 The first filter screen 7 and the second filter screen 10 have the same structure and both include a steel plate 16. A plurality of filter holes 17 are provided in the middle of the steel plate 16. Abutment portions 18 for placing sealing gaskets 21 are provided on both sides of the steel plate 16 located at the outer circle of the plurality of filter holes 17. The abutment portion 18 is an annular protruding structure. A sealing gasket 21 is clamped between the two abutment portions 18 and the corresponding flange plates 20. A plurality of positioning holes 19 for passing bolts are circumferentially provided on the steel plate 16 at the outer circle of the abutment portion 18. The first water inlet branch pipe 3 and the second water inlet branch pipe 4 both clamp and fix the corresponding steel plates 16 through two flange plates 20. The two flange plates 20 fix the middle steel plate 16 through bolts. The bolts simultaneously pass through the corresponding positioning holes 19 of the middle steel plate 16, and the plurality of filter holes 17 on the two steel plates 16 are both located inside the corresponding first water inlet branch pipe 3 or the second water inlet branch pipe 4. In this way, it is convenient to disassemble the first filter screen 7 or the second filter screen 10 by removing the bolts, and then it is convenient to repair or replace the filter screen. If the first water inlet branch pipe 3 and the second water inlet branch pipe 4 use hard pipes such as iron, a soft connecting pipe can be added to clamp and fix the steel plate 16 to compensate for the problem that the hard pipe is inconvenient to move and dock; if the first water inlet branch pipe 3 and the second water inlet branch pipe 4 use pipes that can be easily bent, deformed or moved, such as high-pressure rubber pipes, then there is no need to use a soft connecting pipe. The other structures of this embodiment are the same as those of embodiment 3, so they are not repeated here.

[0030] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-pressure pump for conveniently filtering impurities, comprising a pump body (1), characterized in that: It also comprises a water inlet pipe (2), a first water inlet branch pipe (3), a second water inlet branch pipe (4) and a water delivery pipe (5); one end of the water inlet pipe (2) is connected to the water inlet end of the pump body (1), and the other end is respectively connected to the first water inlet branch pipe (3) and the second water inlet branch pipe (4); the ends of the first water inlet branch pipe (3) and the second water inlet branch pipe (4) away from the water inlet pipe (2) are both connected to the water delivery pipe (5); a first water supply valve (6) is provided on the first water inlet branch pipe (3); a first filter is provided on the pipe section of the first water inlet branch pipe (3) close to the end of the pump body (1) where the first water supply valve (6) is located (7), a first water outlet pipe (8) is arranged on the first water inlet branch pipe (3) section between the first water supply valve (6) and the first filter screen (7); a second water supply valve (9) is arranged on the second water inlet branch pipe (4), a second filter screen (10) is arranged on the second water inlet branch pipe (4) section near one end of the pump body (1) of the second water supply valve (9), a second water outlet pipe (11) is arranged on the second water inlet branch pipe (4) section between the second water supply valve (9) and the second filter screen (10), and a water outlet valve (12) is arranged on both the first water outlet pipe (8) and the second water outlet pipe (11).

2. A high-pressure pump for convenient impurity filtering according to claim 1, characterized in that: One end of the first water outlet pipe (8) away from the first water inlet branch pipe (3) is connected to a sewage tank (13), and one end of the second water outlet pipe (11) away from the second water inlet branch pipe (4) is connected to the sewage tank (13).

3. A high-pressure pump for conveniently filtering impurities according to claim 1, characterized in that: The first filter screen (7) is detachably connected to the first water inlet branch pipe (3), the second filter screen (10) is detachably connected to the second water inlet branch pipe (4), and a first stop valve (14) is provided on a pipe section of the first water inlet branch pipe (3) close to one end of the pump body (1) of the first filter screen (7), and a second stop valve (15) is provided on a pipe section of the second water inlet branch pipe (4) close to one end of the pump body (1) of the second filter screen (10).

4. A high-pressure pump for conveniently filtering impurities according to claim 3, characterized in that: The first filter screen (7) and the second filter screen (10) have the same structure and both comprise a steel plate (16), a plurality of filter holes (17) being provided in the middle of the steel plate (16), abutment portions (18) for placing sealing gaskets (21) being provided on both sides of the steel plate (16) located at the outer circle of the plurality of filter holes (17), a plurality of positioning holes (19) for inserting bolts being provided along the circumferential direction on the steel plate (16) at the outer circle of the abutment portions (18), the first water inlet branch pipe (3) and the second water inlet branch pipe (4) are both clamped and fixed by two flanges (20), and the plurality of filter holes (17) on the two steel plates (16) are both located inside the corresponding first water inlet branch pipe (3) or the second water inlet branch pipe (4).

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