A hydraulic end structure of a fracturing pump with a magnetic locking assembly

Abstract

This utility model relates to the field of fracturing pump technology, specifically to a hydraulic end structure of a fracturing pump with a magnetic locking assembly; it includes a hydraulic end valve box, a discharge valve assembly, a suction valve assembly, a plunger, a sealing ring, a locking nut, a suction end cover, a suction end cover retaining ring, a magnetic locking assembly, a discharge end cover, a discharge valve retaining ring, and a discharge end cover retaining ring. The plunger is connected to the hydraulic end valve box and is located in a third channel. The sealing ring is located in the third channel and is sleeved on the outer wall of the plunger. The locking nut is threaded to the hydraulic end valve box and is fixedly sleeved on the outer wall of the plunger. The suction end cover is located in a fourth channel. The suction end cover retaining ring is connected to the suction end cover. The magnetic locking assembly is located inside the suction end cover retaining ring and is connected to the suction end cover. By adopting the above method, the suction end cover can be fastened in the hydraulic end valve box, preventing the suction end cover from loosening due to vibration and impact, and ensuring reliable valve seat sealing.

Description

Technical Field

[0001] This utility model relates to the field of fracturing pump technology, and in particular to a hydraulic end structure of a fracturing pump with a magnetic locking component. Background Technology

[0002] In the process of oil and gas extraction, fracturing pumps are devices that use plungers to reciprocate in a cylinder to pressurize liquids. They are characterized by compact structure, high pressure, and high efficiency. The hydraulic end refers to all parts and components of the fracturing pump that come into contact with the transported medium. Existing suction end covers are generally fixed by threaded connections or retaining rings.

[0003] However, when the fracturing pump operates under high frequency and large pressure fluctuation conditions for a long time, the suction end cover may become loose due to vibration and impact. During operation, the end cover may easily shift or fall off, causing the valve seat to fail to seal reliably. This can lead to internal leakage and pressure loss at the hydraulic end, and in severe cases, it can cause the suction end cover to pop out and liquid to spray out, resulting in safety accidents. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic end structure for a fracturing pump with a magnetic locking component, which solves the problem that when the fracturing pump operates under high-frequency and high-pressure fluctuation conditions for a long time, the suction end cover will loosen due to vibration and impact, and the end cover is prone to displacement or falling off during operation. This leads to unreliable sealing of the valve seat, causing internal leakage and pressure loss in the hydraulic end, and in severe cases, it can cause safety accidents such as suction end cover popping out and liquid jetting.

[0005] To achieve the above objectives, this utility model employs a hydraulic end structure for a fracturing pump with a magnetic locking assembly, comprising a hydraulic end valve box, a discharge valve assembly, a suction valve assembly, a plunger, a sealing ring, a locking nut, a suction end cover, a suction end cover retaining ring, a magnetic locking assembly, a discharge end cover, a discharge valve retaining ring, and a discharge end cover retaining ring. The hydraulic end valve box has a first channel, a second channel, a third channel, and a fourth channel. The discharge valve assembly is disposed within the first channel. The discharge end cover is connected to the hydraulic end valve box and located above the discharge valve assembly. The discharge valve retaining ring is connected to the discharge end cover. Located below the discharge end cap, the discharge end cap retaining ring is embedded in the discharge end cap. The suction valve assembly is disposed in the second channel. The plunger is connected to the hydraulic end valve box and is located in the third channel. The sealing ring is disposed in the third channel and is sleeved on the outer wall of the plunger. The locking nut is threadedly connected to the hydraulic end valve box and is fixedly sleeved on the outer wall of the plunger. The suction end cap is disposed in the fourth channel. The suction end cap retaining ring is connected to the suction end cap. The magnetic locking assembly is located in the suction end cap retaining ring and is connected to the suction end cap.

[0006] The magnetic locking assembly includes a base, a spring-loaded plunger, and a cylindrical permanent magnet. The base is embedded in the suction end cap retaining ring, the spring-loaded plunger is movably disposed on the base and movably connected to the suction end cap, and the cylindrical permanent magnet is embedded in the base.

[0007] The discharge valve assembly includes a discharge valve body and a discharge valve seat. The discharge valve seat is connected to the hydraulic end valve box and is located in the first channel. The discharge valve body is connected to the discharge valve seat.

[0008] The suction valve assembly includes a suction valve body and a suction valve seat. The suction valve seat is connected to the hydraulic end valve box and is located in the second channel. The suction valve body is connected to the suction valve seat.

[0009] The hydraulic end structure of the fracturing pump with magnetic locking assembly also includes a discharge end cover sealing ring, which is connected to the suction end cover and sleeved on the outside of the suction end cover.

[0010] This utility model discloses a hydraulic end structure for a fracturing pump with a magnetic locking assembly. The first and second channels are vertical within the hydraulic end valve box, while the third and fourth channels are horizontal, forming a cross shape. The discharge valve assembly and the suction valve assembly are placed on the vertical channels, with the discharge valve assembly above and the suction valve assembly below. The discharge valve retaining ring is embedded in the discharge end cap and placed above the discharge valve assembly. A discharge end cap retaining ring is placed above the discharge end cap to ensure a sealing effect. In the horizontal channels, the plunger and the sealing valve are installed sequentially from left to right on the right side. The oil ring and the locking nut; on the left side, first place the suction end cap into the preset position of the horizontal channel, then place the suction end cap retaining ring according to the mating relationship, and then embed the entire magnetic locking assembly into the preset installation position. The magnetic locking assembly is located in the suction side channel of the horizontal channel, and can adsorb ferromagnetic particles in the fluid before the fluid enters the suction valve assembly, preventing ferromagnetic impurities from entering the internal flow channel and valve assembly of the hydraulic end valve box, reducing the wear risk of valve and sealing components. By adopting the above method, the suction end cap can be fastened in the hydraulic end valve box, preventing the suction end cap from loosening due to vibration and impact, and making the valve seat seal reliable. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a side view of the hydraulic end structure of the fracturing pump with magnetic locking assembly according to this utility model.

[0013] Figure 2 This is the utility model Figure 1 A cross-sectional view of the AA line structure.

[0014] Figure 3 This is the utility model Figure 2 Enlarged view of the local structure at point B.

[0015] Figure 4 This is a schematic diagram of the structure of the magnetic locking assembly of this utility model.

[0016] Figure 5 This is a partial structural cross-sectional view of the magnetic locking assembly of this utility model.

[0017] 101-Hydraulic end valve box, 102-Plunger, 103-Discharge valve retaining ring, 104-Suction end cover, 105-Suction end cover retaining ring, 106-Discharge end cover, 107-Discharge end cover retaining ring, 108-Oil sealing ring, 109-Locking nut, 110-Base, 111-Pin spring plunger, 112-Cylindrical permanent magnet, 113-Suction valve body, 114-Suction valve seat, 115-Discharge valve body, 116-Discharge valve seat, 117-First channel, 118-Second channel, 119-Third channel, 120-Fourth channel, 121-Discharge end cover sealing ring. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1-5This utility model provides a hydraulic end structure for a fracturing pump with a magnetic locking assembly: It includes a hydraulic end valve box 101, a discharge valve assembly, a suction valve assembly, a plunger 102, a sealing ring 108, a locking nut 109, a suction end cover 104, a suction end cover retaining ring 105, a magnetic locking assembly, a discharge end cover 106, a discharge valve retaining ring 103, and a discharge end cover retaining ring 107. The hydraulic end valve box 101 has a first channel 117, a second channel 118, a third channel 119, and a fourth channel 120. The discharge valve assembly is disposed in the first channel 117. The discharge end cover 106 is connected to the hydraulic end valve box 101 and is located above the discharge valve assembly. The discharge valve retaining ring 103 is connected to the discharge end cover 106 and is located above the discharge valve assembly. Below the discharge end cap 106, the discharge end cap retaining ring 107 is embedded in the discharge end cap 106. The suction valve assembly is disposed in the second channel 118. The plunger 102 is connected to the hydraulic end valve box 101 and is located in the third channel 119. The sealing ring 108 is disposed in the third channel 119 and is sleeved on the outer wall of the plunger 102. The locking nut 109 is threadedly connected to the hydraulic end valve box 101 and is fixedly sleeved on the outer wall of the plunger 102. The suction end cap 104 is disposed in the fourth channel 120. The suction end cap retaining ring 105 is connected to the suction end cap 104. The magnetic locking assembly is located in the suction end cap retaining ring 105 and is connected to the suction end cap 104.

[0020] In this embodiment, the first channel 117 and the second channel 118 are vertical within the hydraulic end valve box 101, while the third channel 119 and the fourth channel 120 are horizontal within the hydraulic end valve box 101. The four channels intersect in a cross shape. The discharge valve assembly and the suction valve assembly are placed on the vertical channels, with the discharge valve assembly above and the suction valve assembly below. The discharge valve retaining ring 103 is embedded in the discharge end cap 106 and placed above the discharge valve assembly. The discharge end cap retaining ring 107 is placed above the discharge end cap 106 to ensure a sealing effect. In the horizontal channel, the plunger 102 and the oil sealing ring 10 are installed sequentially from left to right on the right side. 8 and the locking nut 109; on the left side, first place the suction end cover 104 into the preset position of the horizontal channel, then place the suction end cover retaining ring 105 according to the mating relationship, and then embed the magnetic locking assembly into the preset installation position. The magnetic locking assembly is located in the suction side channel of the horizontal channel, and can adsorb ferromagnetic particles in the fluid before the fluid enters the suction valve assembly, preventing ferromagnetic impurities from entering the internal flow channel and valve assembly of the hydraulic end valve box 101, reducing the wear risk of valve and sealing components. By adopting the above method, the suction end cover 104 can be fastened in the hydraulic end valve box 101, preventing the suction end cover 104 from loosening due to vibration and impact, and making the valve seat seal reliable.

[0021] Furthermore, the magnetic locking assembly includes a base 110, a spring plunger 111, and a cylindrical permanent magnet 112. The base 110 is embedded in the suction end cap retaining ring 105. The spring plunger 111 is movably disposed on the base 110 and movably connected to the suction end cap 104. The cylindrical permanent magnet 112 is embedded in the base 110.

[0022] In this embodiment, the magnetic locking assembly is a modular assembly consisting of the base 110, the spring plunger 111, and the cylindrical permanent magnet 112. The assembly is embedded into a preset mounting position, and the magnetic attraction force generated by the cylindrical permanent magnet 112 is used to initially position the suction end cap 104. Then, through the elastic telescopic mechanism of the spring plunger 111, its end is inserted into the corresponding mating hole of the suction end cap 104, forming a mechanical secondary lock to prevent the suction end cap 104 and the suction end cap retaining ring 105 from falling off and causing a safety accident. In the above method, a dual locking function can be achieved.

[0023] Further, the discharge valve assembly includes a discharge valve body 115 and a discharge valve seat 116. The discharge valve seat 116 is connected to the hydraulic end valve box 101 and is located in the first channel 117. The discharge valve body 115 is connected to the discharge valve seat 116. The suction valve assembly includes a suction valve body 113 and a suction valve seat 114. The suction valve seat 114 is connected to the hydraulic end valve box 101 and is located in the second channel 118. The suction valve body 113 is connected to the suction valve seat 114.

[0024] Furthermore, the hydraulic end structure of the fracturing pump with magnetic locking assembly also includes a discharge end cover sealing ring 121, which is connected to the suction end cover 104 and sleeved on the outside of the suction end cover 104.

[0025] In this embodiment, by providing the discharge end cap sealing ring 121, the sealing performance at the connection between the suction end cap 104 and the hydraulic end valve box 101 can be increased, thereby improving the performance.

[0026] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A hydraulic end structure of a fracturing pump with a magnetic locking assembly, characterized in that, The system includes a hydraulic valve box, a discharge valve assembly, a suction valve assembly, a plunger, a sealing ring, a lock nut, a suction end cover, a suction end cover retaining ring, a magnetic locking assembly, a discharge end cover, a discharge valve retaining ring, and a discharge end cover retaining ring. The hydraulic valve box has a first channel, a second channel, a third channel, and a fourth channel. The discharge valve assembly is disposed in the first channel. The discharge end cover is connected to the hydraulic valve box and is located above the discharge valve assembly. The discharge valve retaining ring is connected to the discharge end cover and is located below the discharge end cover. A retaining ring is embedded in the discharge end cap. The suction valve assembly is disposed in the second channel. The plunger is connected to the hydraulic end valve box and located in the third channel. The sealing ring is disposed in the third channel and sleeved on the outer wall of the plunger. The locking nut is threadedly connected to the hydraulic end valve box and fixedly sleeved on the outer wall of the plunger. The suction end cap is disposed in the fourth channel. The suction end cap retaining ring is connected to the suction end cap. The magnetic locking assembly is located in the suction end cap retaining ring and connected to the suction end cap.

2. The hydraulic end structure of the fracturing pump with magnetic locking assembly as described in claim 1, characterized in that, The magnetic locking assembly includes a base, a spring-loaded plunger, and a cylindrical permanent magnet. The base is embedded in the suction end cap retaining ring, the spring-loaded plunger is movably disposed on the base and movably connected to the suction end cap, and the cylindrical permanent magnet is embedded in the base.

3. The hydraulic end structure of the fracturing pump with magnetic locking assembly as described in claim 2, characterized in that, The discharge valve assembly includes a discharge valve body and a discharge valve seat. The discharge valve seat is connected to the hydraulic end valve box and is located in the first channel. The discharge valve body is connected to the discharge valve seat.

4. The hydraulic end structure of the fracturing pump with magnetic locking assembly as described in claim 3, characterized in that, The suction valve assembly includes a suction valve body and a suction valve seat. The suction valve seat is connected to the hydraulic end valve box and is located in the second channel. The suction valve body is connected to the suction valve seat.

5. The hydraulic end structure of the fracturing pump with magnetic locking assembly as described in claim 3, characterized in that, The hydraulic end structure of the fracturing pump with magnetic locking assembly also includes a discharge end cover sealing ring, which is connected to the suction end cover and sleeved on the outside of the suction end cover.

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