Drilling cutting reinjection pump fluid end

Abstract

The utility model discloses a fluid end of a drilling cutting reinjection pump. The fluid end comprises a fluid end assembly and a cleaning assembly. The hydraulic end assembly comprises a hydraulic cylinder, a piston sleeve fixedly connected with one side of the hydraulic cylinder, and a piston movably installed in the piston sleeve. According to the drilling cuttings reinjection pump fluid end, the valve sleeve in the fluid cylinder can be conveniently taken down through disassembly of locking screws on the two sides of the top during maintenance and cleaning, so that after the valve sleeve is taken down, the upper fluid outlet cover and the lower fluid inlet cover at the upper end and the lower end of the valve sleeve and the upper ball valve and the lower ball valve at the upper end and the lower end in the valve sleeve are separated; according to the hydraulic end assembly, the first positioning strip and the second positioning strip are arranged on the two sides of the valve sleeve, so that the parts in the valve sleeve and the parts in the valve sleeve are comprehensively and uniformly cleaned, drilling cuttings and impurities accumulated in the valve sleeve are removed, the conveying effect of the valve sleeve in use is guaranteed, the cleaning convenience of the valve sleeve in the hydraulic end assembly is improved, and the service life of the valve sleeve in the hydraulic end assembly is prolonged; and quick and accurate positioning and mounting after cleaning can be facilitated, so that the accuracy of the mounting position is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of reinjection pumps, in particular to a hydraulic end of a cuttings reinjection pump. Background Art

[0002] The hydraulic end of the drill cuttings reinjection pump is the key part in contact with the conveying medium. It refers to all parts or components from the piston (plunger) to the inlet and outlet flanges. Its main function is to transport drill cuttings and other media through the pump body to ensure that the drill cuttings can be smoothly reinjected to the designated location.

[0003] Existing drill cuttings reinjection pumps, such as the reinjection pump and reinjection equipment disclosed in publication number CN210483802U, have the advantage of extending the service life of the hydraulic cylinder. However, the valve body in the hydraulic cylinder is not convenient for comprehensive and uniform cleaning, which makes it difficult to clean the accumulated mud and sand inside the valve body, causing blockage and affecting the conveying effect. Therefore, we propose a drill cuttings reinjection pump hydraulic end. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A drill cuttings reinjection pump hydraulic end, comprising: a hydraulic end assembly, a cleaning component; the hydraulic end assembly comprises a hydraulic cylinder, a piston sleeve fixedly connected to one side of the hydraulic cylinder, a piston movably installed in the piston sleeve, and a liquid inlet opened at the lower part of the hydraulic cylinder; the cleaning component comprises an installation cavity opened in the hydraulic cylinder above the liquid inlet, a valve sleeve movably installed in the installation cavity, a lower threaded opening and an upper threaded opening respectively provided at the lower and upper parts of the valve sleeve, a lower liquid inlet cover and an upper liquid outlet cover movably installed in the lower threaded opening and the upper threaded opening, an upper valve seat fixedly installed in the valve sleeve, an upper ball valve and a lower ball valve movably installed at the upper and lower ends of the upper valve seat in the valve sleeve, and a lower valve seat fixedly installed in the lower liquid inlet cover.

[0007] Preferably, a first positioning strip and a second positioning strip are fixedly mounted on both sides of the upper portion of the valve sleeve, respectively.

[0008] Preferably, a first positioning groove and a second positioning groove are respectively formed on both sides of the upper portion of the installation cavity, and the first positioning groove and the second positioning groove are matched with the first positioning bar and the second positioning bar respectively.

[0009] Preferably, mounting holes are provided in the first positioning strip and the second positioning strip, threaded holes are provided at the bottom of the first positioning groove and the second positioning groove, and locking screws are movably installed in the mounting holes and threaded holes on both sides of the upper part of the valve sleeve.

[0010] Preferably, a communication port is also provided through one side of the valve sleeve.

[0011] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0012] 1. In the present invention, the valve sleeve in the hydraulic cylinder can be conveniently removed for maintenance and cleaning by disassembling the locking screws on both sides of the top. After removal, the upper liquid outlet cover and the lower liquid inlet cover at the upper and lower ends of the valve sleeve, as well as the upper and lower ball valves at the upper and lower ends of the valve sleeve, can be separated. This allows for comprehensive and even cleaning of the valve sleeve and its components, removing accumulated drilling cuttings and impurities, ensuring the conveying effect during use, and thereby improving the cleaning convenience and service life of the valve sleeve in this hydraulic end assembly.

[0013] 2. In the present invention, the first positioning strip and the second positioning strip installed on both sides of the valve sleeve can also facilitate quick and accurate positioning and installation after cleaning, so as to ensure the accuracy of its installation position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structural diagram of the utility model;

[0015] Figure 2 This is a disassembly diagram of the valve sleeve in the hydraulic cylinder of the utility model;

[0016] Figure 3 This is an exploded view of the valve sleeve of the present invention.

[0017] Reference numerals:

[0018] 100, hydraulic end assembly; 101, hydraulic cylinder; 102, piston sleeve; 103, piston; 104, liquid inlet;

[0019] 200. Cleaning assembly; 201. Mounting cavity; 202. Valve sleeve; 203. Lower threaded opening; 204. Upper threaded opening; 205. Lower liquid inlet cover; 206. Upper liquid outlet cover; 207. Upper valve seat; 208. Upper ball valve; 209. Lower ball valve; 210. Lower valve seat; 211. First positioning strip; 212. Second positioning strip; 213. First positioning groove; 214. Second positioning groove; 215. Mounting hole; 216. Threaded hole; 217. Locking screw; 218. Connecting port. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0021] The following describes a hydraulic end of a drill cuttings reinjection pump provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0022] Example 1:

[0023] Combine Figure 1-3 As shown, the utility model provides a hydraulic end of a drill cuttings reinjection pump, comprising: a hydraulic end assembly 100, a cleaning component 200; the hydraulic end assembly 100 comprises a hydraulic cylinder 101, a piston sleeve 102 fixedly connected to one side of the hydraulic cylinder 101, a piston 103 movably installed in the piston sleeve 102, and a liquid inlet 104 opened at the lower part of the hydraulic cylinder 101; the cleaning component 200 comprises an installation cavity 201 opened in the hydraulic cylinder 101 above the liquid inlet 104, a valve sleeve 202 movably installed in the installation cavity 201, a lower threaded port 203 and an upper threaded port 204 respectively provided at the lower and upper parts of the valve sleeve 202, a lower liquid inlet cover 205 and an upper liquid outlet cover 206 movably installed in the lower threaded port 203 and the upper threaded port 204, an upper valve seat 207 fixedly installed in the valve sleeve 202, and upper and lower valve seats 207 in the valve sleeve 202. The upper ball valve 208 and the lower ball valve 209 are movably installed at the ends, and the lower valve seat 210 is fixedly installed in the lower liquid inlet cover 205. The first positioning strip 211 and the second positioning strip 212 are fixedly installed on both sides of the upper part of the valve sleeve 202. The first positioning groove 213 and the second positioning groove 214 are respectively provided on both sides of the upper part of the installation cavity 201, and the first positioning groove 213 and the second positioning groove 214 are matched with the first positioning strip 211 and the second positioning strip 212 respectively. The first positioning strip 211 and the second positioning strip 212 are both provided with mounting holes 215, and the bottoms of the first positioning groove 213 and the second positioning groove 214 are both provided with threaded holes 216. Locking screws 217 are also movably installed in the mounting holes 215 and the threaded holes 216 on both sides of the upper part of the valve sleeve 202, and a connecting port 218 is also provided through one side of the valve sleeve 202.

[0024] Specifically, the hydraulic end of the drill cuttings reinjection pump is the key part in contact with the conveying medium in the drill cuttings reinjection pump, which refers to all the parts or components from the piston to the inlet and outlet flanges. Its main function is to be responsible for conveying drill cuttings and other media through the pump body to ensure that the drill cuttings can be smoothly reinjected to the designated location; the valve sleeve 202 in the hydraulic cylinder 101 of this hydraulic end assembly 100 can be easily removed by disassembling the locking screws 217 on both sides of the top during maintenance and cleaning, so as to separate the upper liquid outlet cover 206 and the lower liquid inlet cover 205 at the upper and lower ends of the valve sleeve 202 after removal, as well as the upper ball valve 208 and the lower ball valve 209 at the upper and lower ends of the valve sleeve 202, so as to comprehensively and evenly clean the components inside and outside the valve sleeve 202. Clean to remove the drill cuttings and impurities accumulated therein, ensure its conveying effect during use, and thus improve the cleaning convenience and service life of the valve sleeve 202 in this hydraulic end assembly 100. At the same time, the first positioning strips 211 and the second positioning strips 212 installed on both sides of the valve sleeve 202 can also facilitate its quick and accurate positioning and installation after cleaning to ensure the accuracy of its installation position. The first positioning grooves 213 and the second positioning grooves 214 of different sizes opened on both sides of the upper part of the installation cavity 201 in the hydraulic cylinder 101 are mainly used for the valve sleeve 202 to be positioned and installed through the first positioning strips 211 and the second positioning strips 212 at both ends, thereby ensuring the communication between the connecting port 218 at the lower end of the valve sleeve 202 and the piston sleeve 102.

[0025] The working principle and use process of this utility model:

[0026] When cleaning the conveying space in the hydraulic cylinder 101 of the hydraulic end assembly 100, first remove the locking screws 217 at the top of the first positioning bar 211 and the second positioning bar 212 from both sides of the upper part of the hydraulic cylinder 101. After the locking screws 217 are removed, the valve sleeve 202 is pulled out of the top of the hydraulic cylinder 101 through the upper liquid outlet cover 206. After the valve sleeve 202 is taken out as a whole, the upper liquid outlet cover 206 and the lower liquid inlet cover 205 at the upper and lower ends of the valve sleeve 202 can be removed in turn, and the upper liquid outlet cover 206 and the lower liquid inlet cover 205 can be removed in turn. After the liquid outlet cover 206 and the lower liquid inlet cover 205 are removed, the upper ball valve 208 and the lower ball valve 209 movably installed at the upper and lower ends of the upper valve seat 207 in the valve sleeve 202 are taken out. After the valve sleeve 202 is disassembled, the inner wall of the valve sleeve 202, the upper liquid outlet cover 206, the lower liquid inlet cover 205, the upper ball valve 208 and the lower ball valve 209 are fully and evenly cleaned, thereby cleaning the drill cuttings and mud accumulated in the valve sleeve 202, thereby ensuring the conveying effect and service life of the valve sleeve 202 during use.

[0027] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hydraulic end of a drill cuttings reinjection pump, characterized in that: include: Liquid end assembly (100), cleaning assembly (200); The hydraulic end assembly (100) includes a hydraulic cylinder (101), a piston sleeve (102) fixedly connected to one side of the hydraulic cylinder (101), a piston (103) movably installed in the piston sleeve (102), and a liquid inlet (104) opened at the bottom of the hydraulic cylinder (101); The cleaning assembly (200) comprises an installation cavity (201) provided in the hydraulic cylinder (101) above the liquid inlet (104), a valve sleeve (202) movably mounted in the installation cavity (201), a lower threaded opening (203) and an upper threaded opening (204) respectively provided at the lower and upper parts of the valve sleeve (202), a lower liquid inlet cover (205) and an upper liquid outlet cover (206) movably mounted in the lower threaded opening (203) and the upper threaded opening (204), an upper valve seat (207) fixedly mounted in the valve sleeve (202), an upper ball valve (208) and a lower ball valve (209) movably mounted at the upper and lower ends of the upper valve seat (207) in the valve sleeve (202), and a lower valve seat (210) fixedly mounted in the lower liquid inlet cover (205).

2. The hydraulic end of a drill cuttings reinjection pump according to claim 1, characterized in that: A first positioning strip (211) and a second positioning strip (212) are fixedly mounted on both sides of the upper portion of the valve sleeve (202).

3. The hydraulic end of a drill cuttings reinjection pump according to claim 1, characterized in that: A first positioning groove (213) and a second positioning groove (214) are respectively provided on both sides of the upper portion of the installation cavity (201), and the first positioning groove (213) and the second positioning groove (214) are matched with the first positioning strip (211) and the second positioning strip (212) respectively.

4. The hydraulic end of a drill cuttings reinjection pump according to claim 3, characterized in that: The first positioning strip (211) and the second positioning strip (212) are both provided with mounting holes (215), the bottoms of the first positioning groove (213) and the second positioning groove (214) are both provided with threaded holes (216), and locking screws (217) are movably installed in the mounting holes (215) and the threaded holes (216) on both sides of the upper part of the valve sleeve (202).

5. The hydraulic end of a drill cuttings reinjection pump according to claim 1, characterized in that: A communication port (218) is also provided through one side of the valve sleeve (202).

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