CN211174017U

CN211174017U - Slush pump with mud filter equipment

Info

Publication number: CN211174017U
Application number: CN201922013105.1U
Authority: CN
Inventors: 梁建雄
Original assignee: Guangdong Green Construction Environmental Protection Technology Co ltd
Current assignee: Guangdong Green Construction Environmental Protection Technology Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-08-04
Anticipated expiration: 2029-11-20

Abstract

The utility model provides a slurry pump with a slurry filtering device, which comprises a driving cylinder, a cylinder body, a piston, a first sealing ring, a middle cavity and a filtering hole; the pressure bearing surface of the piston is provided with the filter hole, and a filter medium is arranged in the filter hole; the annular groove surface of the piston is provided with the middle cavity, and the middle cavity is communicated with the filtering hole through a circulation hole; the ring groove surface of the piston is provided with the first sealing ring; the utility model discloses a filter medium filters silt or quartz sand in the mud for can not remain the grains of sand between sealing member and piston and the cylinder body inner wall, thereby protection sealing member and cylinder body guarantee the life of slush pump.

Description

Slush pump with mud filter equipment

Technical Field

The utility model relates to a technical field of slush pump, especially a slush pump with mud filter equipment.

Background

When the existing slurry pump works, a piston moves back and forth in a cylinder body, a sealing element is arranged between the piston and the inner wall of the cylinder body, and slurry is prevented from flowing to a non-working chamber from a slurry chamber, however, the slurry chamber generates large pressure when the slurry pump works, the sealing element can deform, or the sealing element reaches a certain service life and deforms, and the like, so that still a small part of slurry flows to the non-working chamber from the slurry chamber, silt or quartz sand remains on the sealing element or between the piston and the inner wall of the cylinder body, and when the piston moves back and forth again, the sealing element and the cylinder body can be damaged, and the service life of the cylinder body of the slurry pump is seriously influenced.

SUMMERY OF THE UTILITY MODEL

To the above defect, the utility model aims to provide a slush pump with mud filter equipment solves silt or quartz sand and remains damage sealing member and cylinder body, influences the life's of mud pump jar problem.

To achieve the purpose, the utility model adopts the following technical proposal:

a mud pump with a mud filtering device comprises a driving cylinder, a cylinder body, a piston, a first sealing ring, an intermediate cavity and a filtering hole; the pressure bearing surface of the piston is provided with the filter hole, and a filter medium is arranged in the filter hole; the annular groove surface of the piston is provided with the middle cavity, and the middle cavity is communicated with the filtering hole through a circulation hole; the ring groove surface of the piston is provided with the first sealing ring.

Further, the circulation hole and the filtering hole are arranged perpendicular to each other.

Further, a fixing net is detachably arranged in the filtering hole.

Furthermore, the filter holes are arranged in groups on the pressure-bearing surface of the piston in a circumferential arrangement.

Further, the first sealing ring is a Y-shaped sealing ring, and the Y-shaped lip direction of the first sealing ring faces the pressure bearing surface of the piston.

Further, a second sealing ring is arranged on the ring groove surface of the piston.

Furthermore, the second sealing ring is a Y-shaped sealing ring, and the Y-shaped lip direction of the second sealing ring faces the pressure bearing surface of the piston.

The utility model has the advantages that:

the utility model provides a mud pump with mud filter equipment according to above-mentioned content, filter silt or quartz sand in the mud through filter medium for can not remain the grains of sand between sealing member and piston and the cylinder body inner wall, thereby protect sealing member and cylinder body, guarantee the life of mud pump.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial schematic view of the piston structure of the present invention.

Wherein: the device comprises a driving cylinder 1, a cylinder body 2, a piston 3, a filtering hole 31, a flow hole 32, a pressure bearing surface 33, a ring groove surface 34, a first sealing ring 4, an intermediate cavity 5, a filtering medium 6, a fixed net 7, a second sealing ring 8, a non-working chamber 10 and a mud chamber 11.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 2, a slurry pump having a slurry filtering apparatus includes a driving cylinder 1, a cylinder body 2, a piston 3, a first packing 4, an intermediate chamber 5, and a filtering hole 31; the pressure bearing face 33 of the piston 3 is provided with the filter hole 31, and a filter medium 6 is arranged in the filter hole 31; the annular groove surface 34 of the piston 3 is provided with the intermediate cavity 5, and the intermediate cavity 5 is communicated with the filtering hole 31 through a circulating hole 32; the ring groove surface 34 of the piston 3 is provided with the first seal ring 4.

Specifically, when the mud pump works, a small amount of mud flows from the mud chamber 11 to the non-working chamber 10 due to deformation of the sealing element, silt or quartz sand remains on the sealing element or between the piston 3 and the inner wall of the cylinder body 2, and when the piston 3 reciprocates again, the sealing element and the cylinder body 2 are damaged, so that the service life of the mud pump cylinder body 2 is seriously influenced. In this embodiment, the filter hole 31 is formed in one side surface of the piston 3, the filter medium 6 is arranged in the filter hole 31, the filter hole 31 is communicated with the middle chamber 5 through the flow hole 32, the extrados surface of the piston 3 is provided with the first sealing ring 4 between the middle chamber 5 and the non-working chamber 10, when the piston 3 moves towards the mud chamber 11, the pressure of the mud chamber 11 is increased, mud flows through the filter medium 6 from the filter hole 31 and flows into the middle chamber 5, mud filters sand or quartz sand in the mud when passing through the filter medium 6, mud when flowing into the middle chamber 5 does not contain sand or quartz sand, at the moment, the pressures of the middle chamber 5 and the mud chamber 11 are all greater than that of the non-working chamber 10, and if the first sealing ring 4 deforms, mud flows from the middle chamber 5 to the non-working chamber 10, silt or quartz sand cannot remain between the first sealing ring 4 or the piston 3 and the inner wall of the cylinder body 2, so that the cylinder body 2 and the sealing part of the slurry pump can be prevented from being damaged, the slurry pump is protected, and the service life of the slurry pump is prolonged.

Further, the flow holes 32 and the filtering holes 31 are arranged perpendicular to each other.

Specifically, the circulation holes 32 and the filter holes 31 form a mud passage, and after the mud passes through the filter medium 6 in the filter holes 31, the mud directly flows into the intermediate chamber 5 through the vertically arranged circulation holes 32, which is beneficial to ensuring the smooth passage and ensuring that the pressure of the intermediate chamber 5 is equal to the pressure of the mud chamber 11.

Further, a fixing net 7 is detachably arranged in the filtering hole 31.

Specifically, after the filter medium 6 is put in, the fixing net 7 is installed to fix the filter medium 6 in the filter hole 31, so as to prevent the filter medium 6 from falling out of the filter hole 31, and when the filter medium 6 needs to be replaced, the fixing net 7 is detached to take out the filter medium 6.

Further, 6 groups of the filter holes 31 are circumferentially arranged on the pressure-bearing surface of the piston 3.

Specifically, in this embodiment, the filter holes 31 are provided with 6 groups, which can fully ensure that the slurry flowing into the middle chamber 5 does not contain silt or quartz sand, thereby avoiding that the slurry contains a large amount of silt, and the filter holes 31 do not filter sufficiently, thereby protecting the slurry pump from being damaged and ensuring the service life of the slurry pump.

Further, the first sealing ring 4 is a Y-shaped sealing ring, and a Y-shaped lip of the first sealing ring 4 faces the pressure bearing surface 33 of the piston 3.

Specifically, the Y-shaped sealing ring has good sealing performance and small friction resistance, and the piston 3 always needs to move back and forth, so that the friction resistance is less, and the piston 3 can move more smoothly and stably.

Further, the ring groove surface 34 of the piston 3 is provided with a second seal ring 8.

Specifically, the extrados surface of the piston 3 is provided with the second sealing ring 8 between the middle cavity 5 and the mud chamber 11, the middle cavity 5 is communicated with the filtering hole 31 through the circulation hole 32, so that the pressure of the mud chamber 11 is equal to that of the middle cavity 5, and the second sealing ring 8 cannot deform because the mud chamber 11 is not pressure difference with the middle cavity 5, and mud in the mud chamber 11 cannot flow into the middle cavity 5 through the second sealing ring 8, thereby ensuring that mud in the middle cavity 5 does not contain silt or quartz sand.

Further, the second sealing ring 8 is a Y-shaped sealing ring, and a Y-shaped lip of the second sealing ring 8 faces the pressure bearing surface 33 of the piston 3.

Specifically, the Y-shaped sealing ring has better sealing performance and smaller friction resistance, and because the piston 3 often needs to move back and forth, the friction resistance is less, the piston 3 can move more smoothly and more stably, when the piston 3 moves towards the mud chamber 11, the pressure of the middle cavity 5 is increased and is larger than that of the non-working chamber 10, so that the Y-shaped lip of the first sealing ring 4 is expanded to be larger, and the Y-shaped lip is matched with the inner wall of the cylinder body 2 to be tighter, thereby achieving better sealing performance.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A mud pump having a mud filter assembly, comprising: the device comprises a driving cylinder, a cylinder body, a piston, a first sealing ring, a middle cavity and a filtering hole;

the pressure bearing surface of the piston is provided with the filter hole, and a filter medium is arranged in the filter hole;

the annular groove surface of the piston is provided with the middle cavity, and the middle cavity is communicated with the filtering hole through a circulation hole;

the ring groove surface of the piston is provided with the first sealing ring.

2. The mud pump as set forth in claim 1, wherein: the circulation holes and the filtering holes are arranged perpendicular to each other.

3. The mud pump as set forth in claim 1, wherein: the filter holes are detachably provided with fixing nets.

4. The mud pump as set forth in claim 1, wherein: the filter holes are arranged in groups on the pressure-bearing surface of the piston in a circumferential arrangement.

5. The mud pump as set forth in claim 1, wherein: the first sealing ring is a Y-shaped sealing ring, and the Y-shaped lip direction of the first sealing ring faces to the pressure bearing surface of the piston.

6. The mud pump as set forth in claim 1, wherein: and a second sealing ring is arranged on the ring groove surface of the piston.

7. The mud pump as set forth in claim 6, wherein: the second sealing ring is a Y-shaped sealing ring, and the Y-shaped lip direction of the second sealing ring faces to the pressure bearing surface of the piston.