Water flow filtering device for water inlet pipeline of high-pressure pump

Abstract

The utility model relates to the technical field of water pump filtering devices, in particular to a high-pressure pump water inlet pipeline water flow filtering device which comprises a filter shell, an installation groove is formed in the inner side of the filter shell, and a pressure gauge is fixedly installed on the side wall of the filter shell. The filter shell is connected with a water pipe and a water pump through the connecting flanges arranged on the water inlet pipe opening and the water outlet pipe opening, the first stainless steel filter screen installed in the filter shell firstly filters large impurities into a cavity between the first stainless steel filter screen and the water inlet pipe opening, and water flow subjected to preliminary filtration is further filtered through the second stainless steel filter screen. A ceramic filter plate arranged in a second stainless steel filter screen can adsorb small impurities in water flow, filtered water enters a water pump from a water outlet pipe opening, passes through three layers of filter devices, is hard and cannot be broken by high-speed water flow, and the problem that due to the fact that only one layer of filter bag is used in an existing device, the filter bag cannot be broken by high-speed water flow is solved. Therefore, the problems of poor filtering effect and easiness in damage are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump filtering devices, in particular to a water flow filtering device for a water inlet pipeline of a high-pressure pump. Background Art

[0002] High-pressure pumps are key equipment for processing spunlace nonwovens. They use multiple plungers to reciprocate in the pump body. The liquid in the pump body is squeezed and the pressure is continuously increased, gradually reaching the pressure required by the production process. Traditional high-pressure pumps do not have any filtering measures in the water inlet pipeline. The water flows directly into the high-pressure pump. The untreated water contains a lot of impurities. After the impurities enter the high-pressure pump, the friction between the plunger packing and the pump body is increased. The plunger moves at high speed in the pump body, causing the plunger packing to wear sharply. The seal between the plunger and the pump body is not good, and the pressure cannot continue to rise, which affects the normal operation of the pump. The packing needs to be replaced frequently, which reduces productivity and affects output.

[0003] At present, there is an existing high-pressure pump water inlet pipeline water flow filtering device (such as patent number: CN203220798U), which discloses a high-pressure pump water inlet pipeline water flow filtering device, including a cylinder, an end cover is installed on the upper end of the cylinder, a filter bag is arranged in the cylinder, a water inlet is arranged on the side wall of the upper end of the cylinder, the water inlet is located above the filter bag, a water outlet is arranged at the bottom of the cylinder, and a detection port is arranged on the side wall of the bottom end of the cylinder. The utility model filters the water flow of the high-pressure pump water inlet pipe by arranging a filtering device in front of the water inlet of the high-pressure pump, and retains the particulate impurities in the water in the filter bag, so that the particulate impurities do not enter the drain port, and then will not enter the pump body of the high-pressure pump to affect the normal operation of the high-pressure pump, and the water quality can be regularly detected through the detection port.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0005] 1. The existing device uses only one layer of filter bag. On the one hand, because only one layer of filter bag is provided, only one layer of filtering effect is provided on the water inlet pipeline. Some finer impurities may pass through the filter bag and rub against the pump body. Therefore, the existing device has the problem of poor filtering effect. On the other hand, the filter bag is applied to the high-pressure water pump. The rapidly passing water flow hits the filter bag together with the internal impurities, which may break the filter bag or knock the filter bag out of the filter bag bracket, causing the filter bag to enter the pump body, thereby damaging the pump body. Therefore, the existing device also has the problem of being easily damaged.

[0006] 2. The end cover and the cylinder of the existing device are only provided with a layer of sealing gasket, and no flow blocking groove is provided, which has defects in the sealing effect and may cause water leakage. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] In view of the deficiencies in the prior art, the utility model provides a water flow filtering device for a water inlet pipeline of a high-pressure pump, which solves the technical problems of the prior art devices such as poor filtering effect, easy damage and easy water leakage.

[0009] (II) Technical solution

[0010] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] A water flow filtering device for a water inlet pipeline of a high-pressure pump comprises a filter housing, a mounting groove is provided on the inner side of the filter housing, a pressure gauge is fixedly installed on the side wall of the filter housing, a water inlet pipe port is provided at one end of the filter housing, a water outlet pipe port is provided on the top surface of the filter housing, connecting flanges are provided at the ends of the water inlet pipe port and the water outlet pipe port away from the filter housing, a filtering device is installed in the mounting groove of the filter housing, a sealing device is provided at the filter housing away from the water inlet pipe port, the filtering device is located in the mounting groove with a cavity left at one end away from the water inlet pipe port, and the sealing device comprises a connecting piece and a sealing sleeve.

[0012] Preferably: the filtering device includes a first stainless steel filter screen, the first stainless steel filter screen is fixedly connected to three second stainless steel filter screens, the first stainless steel filter screen and the second stainless steel filter screen are both provided with filtering holes, the three second stainless steel filter screens are each provided with a fixed groove, the fixed grooves are each slidably connected to a ceramic filter plate, the number of the ceramic filter plates is three, the first stainless steel filter screen is close to one end of the water inlet pipe, and the ceramic filter plate faces the direction of the sealing sleeve.

[0013] Preferably: the connecting piece is fixedly connected to one end of the filter housing away from the water inlet pipe, the end of the connecting piece away from the filter housing is provided with a first choke groove and a second choke groove, the second choke groove is provided on the outside of the first choke groove, and the outer wall of the connecting piece is also provided with four bolt holes.

[0014] Preferably: a docking groove is provided at one end of the sealing sleeve facing the connecting piece, four through holes are fixedly provided on the sealing sleeve, a baffle plate is fixedly installed on the side of the sealing sleeve close to the connecting piece, the baffle plate includes three extrusion blocks, and the sealing sleeve is also fixedly connected to a first sealing ring and a second sealing ring on the outer side of the baffle plate.

[0015] Preferably: the extrusion block arranged on the baffle plate has the same size as the fixed groove opened in the second stainless steel filter screen, the three extrusion blocks are slidably connected in the three fixed grooves, the extrusion blocks are in contact with the ceramic filter plate, the first sealing ring is slidably connected in the first choke groove, and the second sealing ring is slidably connected in the second choke groove.

[0016] Preferably, the sealing sleeve is slidably connected to the outer wall of the connecting piece in the docking groove, and the bolt hole and the through hole provided in the connecting piece are rotatably connected with a hexagonal bolt.

[0017] (III) Beneficial effects

[0018] 1. The filter housing is connected to the water pipe and the water pump through the connecting flanges arranged on the water inlet and outlet. The first stainless steel filter installed in the filter housing first filters the larger impurities in the cavity between the filter housing and the water inlet. The water flow after preliminary filtration is further filtered through the second stainless steel filter. The ceramic filter plate arranged in the second stainless steel filter can adsorb the smaller impurities in the water flow. The filtered water enters the water pump from the outlet and passes through the three-layer filtration device. The first stainless steel filter, the second stainless steel filter and the ceramic filter plate are all hard and will not be broken by the high-speed water flow. This solves the problem that the existing device has poor filtering effect and is easy to be damaged because only one layer of filter bag is used.

[0019] 2. The sealing sleeve and the connecting piece are fixedly connected by hexagonal bolts, and the first sealing ring and the second sealing ring are respectively inserted into the first choke groove and the second choke groove to perform double-layer sealing, and the sealing sleeve wraps the connecting piece as a whole to make the sealing performance stronger, thereby solving the problem of poor sealing effect of the existing device, which may cause water leakage.

[0020] 3. After long-term use, you only need to remove the hexagonal bolts and separate the sealing sleeve and the connecting parts to remove the first stainless steel filter and the second stainless steel filter. First, clean the impurities in the cavity between the first stainless steel filter and the water inlet pipe, then clean the first and second stainless steel filters and replace the ceramic filter plate with a new one. After the replacement is completed, put the first and second stainless steel filters back to their original positions, re-dock and seal the sealing sleeve and the connecting parts. The first stainless steel filter, the second stainless steel filter and the ceramic filter plate have a longer service life than the filter bag and can be reused, saving the cost of use. The flat device body is easier to disassemble and clean. You only need to remove the hexagonal bolts to remove the sealing device, which has the advantage of easy disassembly and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0022] Figure 1 This is a side view of the overall structure of the device of the utility model;

[0023] Figure 2 This is a structural diagram of the device of the utility model in a semi-disassembled state;

[0024] Figure 3 This is a structural diagram of the overall semi-separated state of the device of the utility model;

[0025] Figure 4 This is a structural diagram of the filter device of the utility model;

[0026] Figure 5 This is a structural diagram of the sealing sleeve of the utility model.

[0027] Legend: 1. Filter housing; 2. Connecting flange; 3. First stainless steel filter screen; 4. Sealing sleeve; 5. Baffle plate; 6. Connecting piece; 8. Hexagonal bolt; 101. Pressure gauge; 102. Water inlet pipe; 103. Water outlet pipe; 301. Second stainless steel filter screen; 302. Ceramic filter plate; 401. Through hole; 601. First choke groove; 602. Second choke groove; 701. First sealing ring; 702. Second sealing ring. DETAILED DESCRIPTION

[0028] The embodiment of the present application provides a water flow filtering device for the water inlet pipeline of a high-pressure pump, which effectively solves the problems of poor filtering effect, easy damage and easy leakage of existing devices.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in the embodiment of the present application effectively solves the technical problems of poor filtering effect, easy damage and easy water leakage of the existing device. The overall idea is as follows:

[0030] In view of the problems existing in the prior art, the utility model provides a water flow filtering device for a water inlet pipeline of a high-pressure pump, comprising a filter housing 1, a mounting groove is provided on the inner side of the filter housing 1, a pressure gauge 101 is fixedly installed on the side wall of the filter housing 1, a water inlet pipe port 102 is provided at one end of the filter housing 1, a water outlet pipe port 103 is provided on the top surface of the filter housing 1, a connecting flange 2 is provided at the end of the water inlet pipe port 102 and the water outlet pipe port 103 away from the filter housing 1, a filtering device is installed in the mounting groove of the filter housing 1, a sealing device is provided at the filter housing 1 away from the water inlet pipe port 102, the filtering device is located in the mounting groove and a cavity is left at one end away from the water inlet pipe port 102, and the sealing device comprises a connecting piece 6 and a sealing sleeve 4.

[0031] The filtering device includes a first stainless steel filter screen 3, and the first stainless steel filter screen 3 is fixedly connected with three second stainless steel filter screens 301. The first stainless steel filter screen 3 and the second stainless steel filter screen 301 are both provided with filtering holes. The three second stainless steel filter screens 301 are all provided with fixed grooves, and the fixed grooves are all slidably connected with ceramic filter plates 302. There are three ceramic filter plates 302. The first stainless steel filter screen 3 is close to one end of the water inlet pipe port 102, and the ceramic filter plate 302 faces the sealing sleeve 4.

[0032] The connecting member 6 is fixedly connected to one end of the filter housing 1 away from the water inlet pipe port 102. The connecting member 6 is provided with a first choke groove 601 and a second choke groove 602 at the end away from the filter housing 1. The second choke groove 602 is provided on the outside of the first choke groove 601. The outer wall of the connecting member 6 is also provided with four bolt holes.

[0033] A docking groove is provided at one end of the sealing sleeve 4 facing the connecting piece 6, and four through holes 401 are fixedly provided on the sealing sleeve 4. A baffle plate 5 is fixedly installed on the side of the sealing sleeve 4 close to the connecting piece 6, and the baffle plate 5 includes three extrusion blocks. The sealing sleeve 4 is also fixedly connected to a first sealing ring 701 and a second sealing ring 702 on the outer side of the baffle plate 5.

[0034] The extrusion block set on the baffle plate 5 has the same size as the fixed groove opened in the second stainless steel filter screen 301. The three extrusion blocks are slidably connected in the three fixed grooves. The extrusion blocks are in contact with the ceramic filter plate 302. The first sealing ring 701 is slidably connected in the first choke groove 601, and the second sealing ring 702 is slidably connected in the second choke groove 602.

[0035] The sealing sleeve 4 is slidably connected to the outer wall of the connecting member 6 in the docking groove, and the bolt hole and the through hole 401 provided in the connecting member 6 are rotatably connected with the hexagonal bolt 8 .

[0036] The filter housing 1 is connected to the water pipe and the water pump through the connecting flange 2 arranged on the water inlet pipe port 102 and the water outlet pipe port 103. The first stainless steel filter screen 3 installed in the filter housing 1 first filters the larger impurities in the cavity between the water inlet pipe port 102, and the water flow after preliminary filtration is further filtered through the second stainless steel filter screen 301. The ceramic filter plate 302 arranged in the second stainless steel filter screen 301 can absorb the smaller impurities in the water flow, and the filtered water enters the water pump from the water outlet pipe port 103, which solves the problems of poor filtering effect and easy damage of the existing device.

[0037] Working principle:

[0038] In the first step, the filter housing 1 is connected to the water pipe and the water pump through the connecting flange 2 arranged on the water inlet pipe port 102 and the water outlet pipe port 103. The first stainless steel filter screen 3 installed in the filter housing 1 first filters the larger impurities in the cavity between the water inlet pipe port 102, and the water flow after preliminary filtration is further filtered through the second stainless steel filter screen 301. The ceramic filter plate 302 arranged in the second stainless steel filter screen 301 can absorb the smaller impurities in the water flow, and the filtered water enters the water pump from the water outlet pipe port 103.

[0039] In the second step, the sealing sleeve 4 and the connecting piece 6 are fixedly connected by the hexagonal bolts 8, and the first sealing ring 701 and the second sealing ring 702 are respectively inserted into the first flow blocking groove 601 and the second flow blocking groove 602 for double-layer sealing, and the sealing sleeve 4 wraps the connecting piece 6 as a whole to make the sealing performance stronger. The baffle plate 5 arranged in the sealing sleeve 4 and the extrusion block fixedly arranged on the baffle plate 5 are used to seal the fixing groove opened by the second stainless steel filter 301, and also used to fix the ceramic filter plate 302. After long-term use, only the hexagonal bolts 8 need to be removed, and the sealing sleeve 4 and the connecting piece 6 need to be separated, so that the first stainless steel filter 3 and the second stainless steel filter 301 can be removed, and the impurities in the cavity between the first stainless steel filter 3 and the water inlet 102 are cleaned first, and then the first stainless steel filter 3 and the second stainless steel filter 301 are cleaned and the ceramic filter plate 302 is replaced with a new one. After the replacement is completed, the first stainless steel filter 3 and the second stainless steel filter 301 are returned to their original positions, and the sealing sleeve 4 and the connecting piece 6 are re-joined and sealed.

[0040] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A water flow filtering device for a water inlet pipeline of a high-pressure pump, comprising a filter housing (1), a mounting groove being provided on the inner side of the filter housing (1), a pressure gauge (101) being fixedly mounted on the side wall of the filter housing (1), a water inlet pipe opening (102) being provided at one end of the filter housing (1), and a water outlet pipe opening (103) being provided on the top surface of the filter housing (1), characterized in that: The ends of the water inlet pipe (102) and the water outlet pipe (103) away from the filter housing (1) are both provided with connecting flanges (2), a filter device is installed in the installation groove of the filter housing (1), and a sealing device is provided on the filter housing (1) away from the water inlet pipe (102); The filter device is located in the installation groove, leaving a cavity at one end away from the water inlet (102); Wherein, the sealing device comprises a connecting piece (6) and a sealing sleeve (4).

2. A high-pressure pump water inlet pipeline water flow filtering device as claimed in claim 1, characterized in that: The filtering device comprises a first stainless steel filter (3), the first stainless steel filter (3) being fixedly connected to three second stainless steel filter screens (301), the first stainless steel filter (3) and the second stainless steel filter (301) both being provided with filtering holes, the three second stainless steel filter screens (301) being provided with fixing grooves, the fixing grooves being slidably connected to ceramic filter plates (302), the number of the ceramic filter plates (302) being three, the first stainless steel filter (3) being close to one end of the water inlet pipe (102), and the ceramic filter plates (302) being oriented towards the sealing sleeve (4).

3. A water flow filtering device for a high-pressure pump water inlet pipeline as claimed in claim 1, characterized in that: The connecting member (6) is fixedly connected to one end of the filter housing (1) away from the water inlet pipe (102); the end of the connecting member (6) away from the filter housing (1) is provided with a first flow blocking groove (601) and a second flow blocking groove (602); the second flow blocking groove (602) is provided on the outside of the first flow blocking groove (601); and the outer wall of the connecting member (6) is also provided with four bolt holes.

4. A water flow filtering device for a high-pressure pump water inlet pipeline as claimed in claim 3, characterized in that: The sealing sleeve (4) is provided with a docking groove at one end facing the connecting member (6), and the sealing sleeve (4) is fixedly provided with four through holes (401). A baffle plate (5) is fixedly installed on the side of the sealing sleeve (4) close to the connecting member (6), and the baffle plate (5) includes three extrusion blocks. The sealing sleeve (4) is also fixedly connected to a first sealing ring (701) and a second sealing ring (702) on the outer side of the baffle plate (5).

5. A water flow filtering device for a water inlet pipeline of a high-pressure pump as claimed in claim 4, characterized in that: The extrusion block arranged on the baffle plate (5) has the same size as the fixed groove opened on the second stainless steel filter screen (301), the three extrusion blocks are slidably connected in the three fixed grooves, the extrusion blocks are in contact with the ceramic filter plate (302), the first sealing ring (701) is slidably connected in the first choke groove (601), and the second sealing ring (702) is slidably connected in the second choke groove (602).

6. A water flow filtering device for a high-pressure pump water inlet pipeline as claimed in claim 3, characterized in that: The sealing sleeve (4) is slidably connected to the outer wall of the connecting piece (6) in the docking groove, and the bolt hole and the through hole (401) provided in the connecting piece (6) are rotatably connected with a hexagonal bolt (8).

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