Pressure regulating valve of high-pressure plunger pump

Abstract

The utility model relates to the technical field of pressure regulating valves, and discloses a high-pressure plunger pump pressure regulating valve which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is located at the outer end of the main body mechanism, the main body mechanism comprises a high-pressure plunger pump body, a mounting plate and a limiting nut, and the mounting plate is fixedly mounted in the middle of the upper end of the high-pressure plunger pump body; the limiting nut is fixedly mounted at the upper end of the mounting plate; the main body mechanism further comprises an adjusting screw rod, a connecting plate, a sealing plug, a hydraulic cylinder and an arc-shaped limiting plate, the adjusting screw rod is installed at the upper end of the limiting nut in a threaded mode and extends into the high-pressure plunger pump body, and the connecting plate is fixedly installed at the lower end of the adjusting screw rod. According to the pressure regulating valve of the high-pressure plunger pump, by installing the main body mechanism, after the high-pressure plunger pump is regulated to a proper pressure value, the pressure regulating valve can be conveniently locked and fixed, the problem that the pressure regulating valve needs to be readjusted due to the fact that the pressure regulating valve is touched by mistake is avoided, the working efficiency is improved, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure regulating valves, in particular to a high-pressure plunger pump pressure regulating valve. Background Art

[0002] The operating pressure of a high-pressure plunger pump should generally be between 10MPa and 100MPa. It is a positive displacement pump that uses the periodic change of volume in the working chamber to achieve the purpose of conveying liquid. The mechanical energy of the prime mover is directly converted into the pressure energy of the conveyed liquid through the pump. The capacity of the pump only depends on the change in the volume of the working chamber and the number of changes per unit time. In theory, it has nothing to do with the discharge pressure. A pressure regulating valve is required to adjust the internal pressure of the high-pressure plunger pump.

[0003] The prior art patent document CN212898891U discloses a high-pressure plunger pump pressure regulating valve, including a valve body, the upper end of the valve body is connected to a valve cover by a thread, the valve cover is provided with a supporting hole, an adjusting rod is slidably sleeved in the supporting hole, a turntable is welded on the upper end of the adjusting rod, an adjusting block is welded on the lower end of the adjusting rod, a supporting plate is slidably sleeved in the adjusting block, and a rolling groove is provided on the upper end of the supporting plate. The utility model connects the valve cover by a thread on the upper end of the valve body, a supporting hole is provided in the valve cover, an adjusting rod is slidably sleeved in the supporting hole, an adjusting block is welded on the lower end of the adjusting rod, a supporting plate is slidably sleeved in the adjusting block, and a rolling groove is provided on the upper end of the supporting plate. A steel ball is rollingly connected in the rolling groove, and the adjusting block is rotated by rotating the adjusting rod, so that the steel ball is pressed downward and the lower end of the valve core moves downward, thereby controlling the flow of liquid entering the water inlet hole, so that the device has high adjustment accuracy and is convenient for fine-tuning.

[0004] However, in the prior art CN212898891U patent, it is not convenient to lock and fix the pressure regulating valve after the high-pressure plunger pump is adjusted to a suitable pressure value, which may cause accidental touch and require readjustment, thereby reducing work efficiency and having low practicality. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model aims to provide a high-pressure plunger pump pressure regulating valve to solve the problem in the above background technology that it is inconvenient to lock and fix the pressure regulating valve after the high-pressure plunger pump is adjusted to a suitable pressure value.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure plunger pump pressure regulating valve, comprising a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located at the outer end of the main mechanism, the main mechanism comprises a high-pressure plunger pump body, a mounting plate, and a limit nut, wherein the mounting plate is fixedly mounted at the middle of the upper end of the high-pressure plunger pump body, and the limit nut is fixedly mounted at the upper end of the mounting plate;

[0009] The main mechanism also includes an adjusting screw, a connecting plate, a sealing plug, a hydraulic cylinder and an arc-shaped limit plate. The adjusting screw is threadedly installed on the upper end of the limit nut, and the adjusting screw extends to the interior of the high-pressure plunger pump body. The connecting plate is fixedly installed on the lower end of the adjusting screw, and the sealing plug is fixedly installed on the lower end of the connecting plate. The hydraulic cylinder is fixedly installed on the left and right ends of the inner end of the high-pressure plunger pump body, and the arc-shaped limit plate is fixedly installed in the middle of the transmission end of the hydraulic cylinder. The arc-shaped limit plate is located at the left and right ends of the adjusting screw, and the arc-shaped limit plate is movably connected to the adjusting screw.

[0010] Preferably, the auxiliary mechanism includes a turning handle, a groove, a water inlet, a pressure sensor, a water outlet, an anti-corrosion coating, a mounting seat, a pressure detection gauge and a base plate. The turning handle is fixedly mounted on the upper end of the adjusting screw to facilitate the staff to rotate the adjusting screw.

[0011] Preferably, the groove is fixedly arranged at the lower end of the inner end of the high-pressure plunger pump body, the groove is movably connected to the sealing plug, and the water inlet is fixedly arranged at the right end of the high-pressure plunger pump body, thereby improving practicality.

[0012] Preferably, the pressure sensor is fixedly mounted at the right end of the inner end of the high-pressure plunger pump body, and the water outlet is fixedly arranged at the left end of the high-pressure plunger pump body, so as to facilitate the transmission of pressure information inside the high-pressure plunger pump.

[0013] Preferably, the anti-corrosion coating is fixedly arranged on the outer end of the high-pressure plunger pump body, and the mounting seat is fixedly installed on the left end of the upper end of the high-pressure plunger pump body, so as to improve the corrosion resistance of the high-pressure plunger pump body, avoid the problem of rust on the surface of the high-pressure plunger pump body, and extend the service life of the high-pressure plunger pump body.

[0014] Preferably, the pressure detection gauge is fixedly mounted on the upper end of the mounting seat, and the base plate is fixedly mounted on the lower end of the high-pressure plunger pump body, so as to display the pressure information inside the high-pressure plunger pump and facilitate adjustment by the staff.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The high-pressure plunger pump pressure regulating valve can be installed with the main body mechanism to facilitate locking and fixing the pressure regulating valve after the high-pressure plunger pump is adjusted to a suitable pressure value, thereby avoiding the problem of accidentally touching the pressure regulating valve and requiring readjustment, thereby improving work efficiency and practicability;

[0017] 2. The high-pressure plunger pump pressure regulating valve is easy to improve the corrosion resistance of the high-pressure plunger pump body by installing auxiliary mechanisms and anti-corrosion coating, avoiding the problem of rust on the surface of the high-pressure plunger pump body, extending the service life of the high-pressure plunger pump body, and the pressure detection gauge is easy to display the pressure information inside the high-pressure plunger pump, which is convenient for the staff to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a partial structural diagram of the main mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure with local details.

[0022] In the figure: 1. Main mechanism; 101. High-pressure plunger pump body; 102. Mounting plate; 103. Limit nut; 104. Adjusting screw; 105. Connecting plate; 106. Sealing plug; 107. Hydraulic cylinder; 108. Arc-shaped limit plate; 2. Auxiliary mechanism; 201. Turning handle; 202. Groove; 203. Water inlet; 204. Pressure sensor; 205. Water outlet; 206. Anti-corrosion coating; 207. Mounting seat; 208. Pressure test gauge; 209. Bottom plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4The utility model provides a technical solution: a high-pressure plunger pump pressure regulating valve, comprising a main mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located at the outer end of the main mechanism 1, the main mechanism 1 comprises a high-pressure plunger pump body 101, a mounting plate 102, and a limiting nut 103, the mounting plate 102 is fixedly mounted on the middle part of the upper end of the high-pressure plunger pump body 101, and the limiting nut 103 is fixedly mounted on the upper end of the mounting plate 102;

[0025] The main mechanism 1 also includes an adjusting screw 104, a connecting plate 105, a sealing plug 106, a hydraulic cylinder 107 and an arc-shaped limit plate 108. The adjusting screw 104 is threadedly installed on the upper end of the limit nut 103, and the adjusting screw 104 extends to the interior of the high-pressure plunger pump body 101. The connecting plate 105 is fixedly installed on the lower end of the adjusting screw 104, and the sealing plug 106 is fixedly installed on the lower end of the connecting plate 105. The hydraulic cylinder 107 is fixedly installed on the left and right ends of the inner end of the high-pressure plunger pump body 101, and the arc-shaped limit plate 108 is fixedly installed in the middle of the transmission end of the hydraulic cylinder 107. The arc-shaped limit plate 108 is located at the left and right ends of the adjusting screw 104, and the arc-shaped limit plate 108 is movably connected to the adjusting screw 104.

[0026] The auxiliary mechanism 2 includes a turning handle 201, a groove 202, a water inlet 203, a pressure sensor 204, a water outlet 205, an anti-corrosion coating 206, a mounting seat 207, a pressure detection gauge 208 and a base plate 209. The turning handle 201 is fixedly installed at the upper end of the adjusting screw 104, the groove 202 is fixedly arranged at the lower end of the inner end of the high-pressure plunger pump body 101, the groove 202 is movably connected to the sealing plug 106, the water inlet 203 is fixedly arranged at the right end of the high-pressure plunger pump body 101, the pressure sensor 204 is fixedly arranged at the right end of the inner end of the high-pressure plunger pump body 101, the water outlet 205 is fixedly arranged at the left end of the high-pressure plunger pump body 101, the anti-corrosion coating 206 is fixedly arranged at the outer end of the high-pressure plunger pump body 101, the mounting seat 207 is fixedly installed at the left end of the upper end of the high-pressure plunger pump body 101, the pressure detection gauge 208 is fixedly installed at the upper end of the mounting seat 207, and the base plate 209 is fixedly installed at the high At the lower end of the plunger pump body 101, when using the high-pressure plunger pump pressure regulating valve, the staff first connects the pipeline to the water inlet 203 and the water outlet 205 respectively, and the staff rotates the handle 201 through the limit nut 103 to drive the adjusting screw 104 to rotate. The adjusting screw 104 drives the connecting plate 105 and the sealing plug 106 to move down or up to a suitable height to adjust the pressure of the high-pressure plunger pump body 101. The pressure sensor 204 transmits the pressure information in the high-pressure plunger pump body 101 to the pressure detection gauge 208. After adjusting to the appropriate pressure value, the hydraulic cylinder 107 pushes the arc-shaped limit plate 108 to lock and fix the adjusting screw 104 to avoid the need to re-adjust the pressure after accidentally touching the adjusting screw 104. The anti-corrosion coating 206 improves the corrosion resistance of the high-pressure plunger pump body 101, avoids the problem of rust on the surface of the high-pressure plunger pump body 101, and extends the service life of the high-pressure plunger pump body 101.

[0027] Working principle: First, when using the high-pressure plunger pump pressure regulating valve, the staff first connects the pipeline to the water inlet 203 and the water outlet 205 respectively. The staff rotates the handle 201 through the limit nut 103 to drive the adjusting screw 104 to rotate. The adjusting screw 104 drives the connecting plate 105 and the sealing plug 106 to move down or up to a suitable height to adjust the pressure of the high-pressure plunger pump body 101. The pressure sensor 204 transmits the pressure information in the high-pressure plunger pump body 101 to the pressure detection gauge 208. After adjusting to the appropriate pressure value, the hydraulic cylinder 107 pushes the arc-shaped limit plate 108 to lock and fix the adjusting screw 104 to avoid the need to re-adjust the pressure after accidentally touching the adjusting screw 104. The anti-corrosion coating 206 improves the corrosion resistance of the high-pressure plunger pump body 101, avoids the problem of rust on the surface of the high-pressure plunger pump body 101, and extends the service life of the high-pressure plunger pump body 101.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A high-pressure plunger pump pressure regulating valve, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located at the outer end of the main mechanism (1); the main mechanism (1) comprises a high-pressure plunger pump body (101), a mounting plate (102), and a limit nut (103); the mounting plate (102) is fixedly mounted at the middle of the upper end of the high-pressure plunger pump body (101); and the limit nut (103) is fixedly mounted at the upper end of the mounting plate (102); The main body mechanism (1) further comprises an adjusting screw (104), a connecting plate (105), a sealing plug (106), a hydraulic cylinder (107) and an arc-shaped limiting plate (108); the adjusting screw (104) is threadedly mounted on the upper end of the limiting nut (103); the adjusting screw (104) extends to the interior of the high-pressure plunger pump body (101); the connecting plate (105) is fixedly mounted on the lower end of the adjusting screw (104); the sealing plug (106) is fixedly mounted on the lower end of the connecting plate (105); the hydraulic cylinder (107) is fixedly mounted on the left and right ends of the inner end of the high-pressure plunger pump body (101); the arc-shaped limiting plate (108) is fixedly mounted on the middle part of the transmission end of the hydraulic cylinder (107); the arc-shaped limiting plate (108) is located at the left and right ends of the adjusting screw (104); and the arc-shaped limiting plate (108) is movably connected to the adjusting screw (104).

2. A high-pressure plunger pump pressure regulating valve according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a turning handle (201), a groove (202), a water inlet (203), a pressure sensor (204), a water outlet (205), an anti-corrosion coating (206), a mounting seat (207), a pressure detection gauge (208) and a bottom plate (209); the turning handle (201) is fixedly mounted on the upper end of the adjusting screw (104).

3. A high-pressure plunger pump pressure regulating valve according to claim 2, characterized in that: The groove (202) is fixedly arranged at the lower end of the inner end of the high-pressure plunger pump body (101), the groove (202) is movably connected to the sealing plug (106), and the water inlet (203) is fixedly arranged at the right end of the high-pressure plunger pump body (101).

4. A high-pressure plunger pump pressure regulating valve according to claim 3, characterized in that: The pressure sensor (204) is fixedly mounted on the right end of the inner end of the high-pressure plunger pump body (101), and the water outlet (205) is fixedly arranged on the left end of the high-pressure plunger pump body (101).

5. A high-pressure plunger pump pressure regulating valve according to claim 4, characterized in that: The anti-corrosion coating (206) is fixedly mounted on the outer end of the high-pressure plunger pump body (101), and the mounting seat (207) is fixedly mounted on the left end of the upper end of the high-pressure plunger pump body (101).

6. A high-pressure plunger pump pressure regulating valve according to claim 5, characterized in that: The pressure detection gauge (208) is fixedly mounted on the upper end of the mounting seat (207), and the base plate (209) is fixedly mounted on the lower end of the high-pressure plunger pump body (101).

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