Novel fracturing pump plunger structure

Abstract

The utility model discloses a novel fracturing pump plunger structure which comprises a cylinder structure, one end of the cylinder structure is provided with a sealing structure, the other end of the cylinder structure is connected with a column head structure, the sealing structure is connected with a bolt structure, and the column head structure is connected with a plunger. The barrel structure comprises a metal barrel, a butt joint opening, an L-shaped fixing groove, a stepped groove, a fixing frame and a threaded hole. The plunger structure has the advantages that the plunger structure can be conveniently in butt joint with a sealing structure and a column head structure through the arranged barrel structure, the plunger structure is modularized, modules can be independently replaced, liquid can be guided into the plunger through the arranged bolt structure, the weight of the plunger is further changed, the manual pressure discharging function is achieved, and the plunger structure is convenient to use. And high-pressure impact in the dismounting process is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of fracturing pumps, in particular to a novel fracturing pump plunger structure. Background Art

[0002] Fracturing pumps are important equipment for oilfield fracturing and acidizing operations to increase the production of oil and gas wells. The plunger is one of the main vulnerable parts of the fracturing pump. The surface of the plunger is easily worn, scratched, ablated and corroded, resulting in frequent replacement of the plunger, which reduces the working efficiency of the fracturing pump and increases the cost of use.

[0003] Current plungers cannot simultaneously provide the functions of easy replacement, good sealing, and internal weight change.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a novel fracturing pump plunger structure, which has a good modular design for easy replacement and a weight adjustment function, thereby solving the problems existing in the prior art.

[0007] (II) Technical solution

[0008] In order to realize the above-mentioned good modular design for easy replacement and weight adjustment function, the specific technical solutions adopted by the utility model are as follows:

[0009] A novel fracturing pump plunger structure comprises a barrel structure, one end of which is provided with a sealing structure, the other end of which is connected with a column head structure, and the sealing structure is connected with a bolt structure.

[0010] Furthermore, the cylinder structure includes a metal cylinder, a docking port, an L fixing groove, a stepped groove, a fixing frame, and a threaded hole. One end of the metal cylinder is a docking port, and an L fixing groove is provided on the inner cavity of the metal cylinder near the docking port.

[0011] Furthermore, a stepped groove is provided at the other end of the metal cylinder, a fixing frame is fixedly installed in the inner cavity of the metal cylinder near the stepped groove, and a threaded hole is opened at the center of the fixing frame.

[0012] Furthermore, the sealing structure includes a sealing block, a fitting groove, and a through hole. A fitting groove is provided at one end of the sealing block, and a through hole is penetrated through the sealing block. A bolt structure is installed in the through hole, and the sealing structure is fixedly connected to the cylinder structure through the bolt structure.

[0013] Furthermore, the column head structure includes a plunger top surface, a receiving column, a connecting column, a screw-on block, and a sealing limit ring. One end of the plunger top surface is fixedly connected to the receiving column, and the other end of the receiving column is fixedly connected to the connecting column. The connecting column is symmetrically provided with screw-on blocks on its circumference, and a sealing limit ring is provided on the circumference of one end of the connecting column.

[0014] Furthermore, the bolt structure includes a bolt head, a threaded rod, a hexagonal hole, a push-on check valve, a magnetic block, and a magnetic buffer pad. One end of the bolt head is fixedly connected to the threaded rod, and the other end of the bolt head is provided with a hexagonal hole.

[0015] Furthermore, the center of the hexagonal hole is connected to a push-on check valve, the push-on check valve passes through the threaded rod, a magnetic block is embedded in the hexagonal hole, and a magnetic buffer pad is magnetically attracted to one side of the magnetic block.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a new fracturing pump plunger structure, which has the following beneficial effects:

[0018] The utility model can conveniently connect with the sealing structure and the column head structure through the provided cylinder structure, so that the plunger structure is modularized and the modules can be replaced separately. The provided bolt structure can introduce liquid into the interior of the plunger to thereby change the weight of the plunger. The utility model also has a manual pressure relief function to prevent high-pressure shock during the disassembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the main structure of the new fracturing pump plunger structure according to an embodiment of the utility model;

[0021] Figure 2 It is a main structure cross-sectional view of a novel fracturing pump plunger structure according to an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the barrel structure of a novel fracturing pump plunger structure according to an embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the sealing structure of the new fracturing pump plunger structure according to an embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the column head structure of the new fracturing pump plunger structure according to an embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of the bolt structure of the new fracturing pump plunger structure according to an embodiment of the utility model.

[0026] In the figure:

[0027] 1. Cylinder structure; 101. Metal cylinder; 102. Docking port; 103. L fixing groove; 104. Step groove; 105. Fixing frame; 106. Threaded hole; 2. Sealing structure; 201. Sealing block; 202. Fitting groove; 203. Through hole; 3. Column head structure; 301. Top surface of plunger; 302. Supporting column; 303. Connecting column; 304. Screw-on block; 305. Sealing limit ring; 4. Bolt structure; 401. Bolt head; 402. Threaded rod; 403. Hexagonal hole; 404. Push-on check valve; 405. Magnetic block; 406. Magnetic buffer pad. DETAILED DESCRIPTION

[0028] For further explanation, the present invention is provided with accompanying drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-6 As shown, it includes a cylinder structure 1, a sealing structure 2 is installed at one end of the cylinder structure 1, and a column head structure 3 is connected to the other end of the cylinder structure 1. A bolt structure 4 is connected to the sealing structure 2. The two ends of the cylinder structure 1 are respectively connected to the sealing structure 2 and the column head structure 3, and the sealing structure 2 is connected to the cylinder structure 1 through the bolt structure 4.

[0030] The cylinder structure 1 includes a metal cylinder 101, a docking port 102, an L fixing groove 103, a stepped groove 104, a fixing frame 105, and a threaded hole 106. One end of the metal cylinder 101 is the docking port 102, an L fixing groove 103 is provided on the inner cavity of the metal cylinder 101 near the docking port 102, a stepped groove 104 is provided on the other end of the metal cylinder 101, a fixing frame 105 is fixedly installed on the inner cavity of the metal cylinder 101 near the stepped groove 104, and a threaded hole 106 is provided in the center of the fixing frame 105.

[0031] The sealing structure 2 includes a sealing block 201, a fitting groove 202, and a through hole 203. A fitting groove 202 is provided at one end of the sealing block 201. The sealing block 201 is penetrated by a through hole 203. A bolt structure 4 is installed in the through hole 203. The sealing structure 2 is fixedly connected to the cylinder structure 1 through the bolt structure 4. The bolt structure 4 passes through the through hole 203 to thread the threaded rod 402 and the threaded hole 106 of the cylinder structure 1, thereby fixing the sealing block 201 of the sealing structure 2 with the metal cylinder 101. The fitting groove 202 matches the step groove 104 to make them staggered and docked, which can improve the sealing and connection stability, as well as the convenience of subsequent disassembly.

[0032] The column head structure 3 includes a plunger top surface 301, a receiving column 302, a connecting column 303, a screw-in block 304, and a sealing limit ring 305. One end of the plunger top surface 301 is fixedly connected to the receiving column 302, and the other end of the receiving column 302 is fixedly connected to the connecting column 303. The connecting column 303 is symmetrically provided with screw-in blocks 304 on its circumference, and a sealing limit ring 305 is provided on one end of the connecting column 303. The column head structure 3 is vertically introduced into the L fixing groove 103 through the screw-in block 304 on the connecting column 303 and then screwed into the fixing groove of the L fixing groove 103. After fixing, the sealing limit ring 305 is in sealing contact with the docking interface 102 of the metal cylinder 101, so that the docking interface 102 is in a sealed state, and in the later disassembly, it only needs to reverse the operation to achieve separation.

[0033] The bolt structure 4 includes a bolt head 401, a threaded rod 402, a hexagonal hole 403, a push-on check valve 404, a magnetic block 405, and a magnetic buffer pad 406. One end of the bolt head 401 is fixedly connected to the threaded rod 402, and the other end of the bolt head 401 is provided with a hexagonal hole 403. The center of the hexagonal hole 403 is connected to the push-on check valve 404, and the push-on check valve 404 passes through the threaded rod 402. The hexagonal hole 403 is embedded with a magnetic block 405, and one side of the magnetic block 405 is magnetically attracted with a magnetic buffer pad 406. The hexagonal hole 403 of the bolt head 401 is convenient for It is matched with a suitable type of hexagonal wrench to facilitate the fixing, installation and removal of the bolts. The press-on check valve 404 is commonly found on tires and is mainly used here to introduce a balancing liquid into the metal cylinder 101. It can be pressed before removal to reduce the internal pressure and subsequently replenish the liquid. The magnetic block 405 is used to magnetically fill the hexagonal hole 403, and the magnetic buffer pad 406 is used to fill the step difference between the penetration hole 203 and the sealing block 201, and at the same time plays a buffering role. Subsequent disassembly only requires the use of a magnet with stronger magnetic force to achieve disassembly.

[0034] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0035] In summary, with the aid of the above-mentioned technical scheme of the utility model, the sealing structure 2 and the column head structure 3 are respectively connected through the two ends of the cylinder structure 1, and the sealing structure 2 is connected to the cylinder structure 1 through the bolt structure 4. The bolt structure 4 passes through the through-hole 203 to make the threaded rod 402 threadably docked with the threaded hole 106 of the cylinder structure 1, so that the sealing block 201 of the sealing structure 2 is fixedly connected with the metal cylinder 101, and the matching groove 202 matches the stepped groove 104 to make them staggeredly docked, which can improve the sealing and connection stability, and improve the convenience of subsequent disassembly, and the column head structure 3 is vertically introduced into the L fixing groove 103 through the screw-on block 304 on the connecting column 303 and then screwed into the fixing groove of the L fixing groove 103, and the sealing limit is fixed after fixing. The positioning ring 305 is in sealing contact with the docking interface 102 of the metal cylinder 101, so that the docking interface 102 is in a sealed state, and in the later disassembly, only the reverse operation is required to achieve separation. The hexagonal hole 403 of the bolt head 401 is easy to match with a hexagonal wrench of a suitable type, which is convenient for the fixing, installation and removal of the bolt. The push-on check valve 404 is commonly found on tires, and is mainly used here to introduce balancing liquid into the metal cylinder 101, and can be pressed before disassembly to reduce the internal pressure and subsequent liquid replenishment. The magnetic block 405 is used to magnetically fill the hexagonal hole 403, and the magnetic buffer pad 406 is used to fill the step difference between the penetration hole 203 and the sealing block 201, and at the same time plays a buffering role. Subsequent disassembly only needs to be achieved through a magnet with stronger magnetic force.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel fracturing pump plunger structure, characterized in that: It comprises a cylinder structure (1), one end of which is installed with a sealing structure (2), the other end of which is connected with a column head structure (3), and the sealing structure (2) is connected with a bolt structure (4).

2. A novel fracturing pump plunger structure according to claim 1, characterized in that: The cylinder structure (1) comprises a metal cylinder (101), a docking port (102), an L-fixing groove (103), a stepped groove (104), a fixing frame (105), and a threaded hole (106); one end of the metal cylinder (101) is a docking port (102); and an L-fixing groove (103) is provided on the inner cavity of the metal cylinder (101) near the docking port (102).

3. A novel fracturing pump plunger structure according to claim 2, characterized in that: The other end of the metal cylinder (101) is provided with a stepped groove (104), and a fixing frame (105) is fixedly installed in the inner cavity of the metal cylinder (101) near the stepped groove (104), and a threaded hole (106) is opened at the center of the fixing frame (105).

4. A novel fracturing pump plunger structure according to claim 3, characterized in that: The sealing structure (2) comprises a sealing block (201), a fitting groove (202), and a through hole (203); a fitting groove (202) is provided at one end of the sealing block (201); a through hole (203) is provided through the sealing block (201); a bolt structure (4) is installed in the through hole (203); and the sealing structure (2) is fixedly connected to the cylinder structure (1) via the bolt structure (4).

5. A novel fracturing pump plunger structure according to claim 4, characterized in that: The column head structure (3) comprises a plunger top surface (301), a receiving column (302), a connecting column (303), a screw-on block (304), and a sealing limit ring (305); one end of the plunger top surface (301) is fixedly connected to the receiving column (302), and the other end of the receiving column (302) is fixedly connected to the connecting column (303); the screw-on blocks (304) are symmetrically arranged around the connecting column (303); and a sealing limit ring (305) is arranged around one end of the connecting column (303).

6. A novel fracturing pump plunger structure according to claim 5, characterized in that: The bolt structure (4) comprises a bolt head (401), a threaded rod (402), a hexagonal hole (403), a push-on check valve (404), a magnetic block (405), and a magnetic buffer pad (406); one end of the bolt head (401) is fixedly connected to the threaded rod (402), and the other end of the bolt head (401) is provided with a hexagonal hole (403).

7. A novel fracturing pump plunger structure according to claim 6, characterized in that: The center of the hexagonal hole (403) is connected to a push-on check valve (404), and the push-on check valve (404) passes through the threaded rod (402). A magnetic block (405) is embedded in the hexagonal hole (403), and a magnetic buffer pad (406) is magnetically attracted to one side of the magnetic block (405).

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