Electromagnetic pilot-operated type pressure control unloading valve

Abstract

The utility model relates to the technical field of unloading valves, and discloses an electromagnetic pilot-operated type pressure control unloading valve which comprises a valve body of an electromagnetic pilot-operated valve, a cooling device is arranged on the valve body and comprises a heat dissipation unit and an installation unit, the heat dissipation unit makes contact with the peripheral face of the valve body, and the space between the heat dissipation unit and the valve body is filled with a heat conduction medium; the mounting units are arranged on the heat dissipation unit, and the multiple mounting units are matched with one another to clamp the valve body. The electromagnetic pilot valve has the effect of reducing the temperature of the valve body of the electromagnetic pilot valve.

Description

Technical Field

[0001] The present application relates to the technical field of unloading valves, and in particular to an electromagnetic pilot pressure-controlled unloading valve. Background Art

[0002] The unloading valve of an emulsion pump is a key component in the pressure control of a pumping station. It typically consists of a main check valve, a pilot-operated mechanical valve, and a solenoid pilot valve. The solenoid pilot valve controls the operation of the main check valve to achieve the pumping station's boosting and unloading functions.

[0003] There is a Chinese patent with authorization announcement number CN219711926U, which discloses a mechanical electromagnetic dual-pilot unloading valve, including a main valve body, a one-way valve assembly, an unloading valve assembly, a cover plate, a mechanical pilot valve, an electromagnetic pilot throttling assembly and an electromagnetic pilot valve; a high-pressure filter element is installed in the cover plate; after the compression spring of the mechanical pilot valve is compressed to the extreme position, the connecting cone of the stabilizer bar is still located on the side of the radial hole away from the sphere.

[0004] During operation, the solenoid pilot valve of the aforementioned mechanical solenoid dual-pilot unloading valve generates heat due to the resistance of the solenoid coil when energized, causing the valve body temperature to rise. Currently, this cooling is typically achieved through natural heat dissipation. However, in high ambient operating temperatures, this effectiveness is reduced, and the temperature of the solenoid pilot valve may rise further, potentially affecting the life of the solenoid coil and the stability of the control system. Utility Model Content

[0005] In order to reduce the valve body temperature of the electromagnetic pilot valve, the present application provides an electromagnetic pilot pressure-controlled unloading valve.

[0006] The electromagnetic pilot pressure control unloading valve provided in this application adopts the following technical solution:

[0007] An electromagnetic pilot pressure control unloading valve includes a valve body of an electromagnetic pilot valve, wherein the valve body is provided with a cooling device, the cooling device including a heat dissipation unit and a mounting unit, wherein:

[0008] The heat dissipation unit is in contact with the outer peripheral surface of the valve body, and a heat-conducting medium is filled between the heat dissipation unit and the valve body;

[0009] The mounting unit is mounted on the heat dissipation unit, and a plurality of the mounting units are provided. The plurality of the mounting units cooperate with each other to clamp the valve body.

[0010] Optionally, the heat dissipation unit includes a heat dissipation box and a liquid cooling pipe, wherein:

[0011] The heat dissipation box is in contact with the outer peripheral surface of the valve body, and a plurality of guide rods are provided inside the heat dissipation box;

[0012] The liquid cooling pipe is communicated with the heat dissipation box, and a coolant is introduced into the liquid cooling pipe.

[0013] Optionally, a plurality of grease discharge holes are formed on one side of the heat dissipation box close to the valve body, a grease injection hole is provided on the end side wall of the heat dissipation box, and the grease injection hole is communicated with the grease discharge holes.

[0014] Optionally, the heat conducting medium is heat conducting silicone grease.

[0015] Optionally, a guide rail is provided on one side of the heat dissipation unit away from the valve body, and the installation unit includes a positioning seat and telescopic clamping jaws, wherein:

[0016] The positioning seat is in sliding fit with the guide rail, and the positioning seat can be fixed on the guide rail;

[0017] The telescopic clamping jaws are installed on the positioning seat, the telescopic clamping jaws are in rotational fit with the guide rail, and the plurality of telescopic clamping jaws cooperate with each other to clamp the valve body.

[0018] Optionally, a chute arranged in a T shape is provided on the guide rail along its own length direction, and the positioning seat includes a positioning frame and a positioning column, wherein:

[0019] The positioning frame is arranged in a U shape, the positioning frame is sleeved on the guide rail from the opening, and the positioning frame is in sliding fit with the guide rail. A locking bolt is threadedly connected to the positioning frame, the end of the locking bolt abuts against the side wall of the guide rail, and a rotating hole is provided on the positioning frame;

[0020] The positioning column penetrates through the rotating hole and is in rotational fit with the rotating hole. A blocking block is provided at one end of the positioning column close to the guide rail, and the blocking block abuts against the inner wall of the chute.

[0021] Optionally, the telescopic clamping jaw includes a telescopic rod and a clamping rod, wherein:

[0022] One end of the telescopic rod is installed on the positioning seat, and the telescopic rod can adjust its own length;

[0023] The clamping jaw is installed at one end of the telescopic rod away from the positioning seat.

[0024] Optionally, the clamping rod is a round rod.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the ambient temperature is high, the heat dissipation unit can be removably mounted on the valve body using the mounting unit. These mounting units interlock and clamp onto the valve body to accommodate valves of varying sizes. The heat dissipation unit dissipates heat from the valve body while also isolating a portion of the valve body from the ambient environment, reducing the possibility of the ambient environment affecting the valve body temperature. When cooling the valve body is no longer necessary, the heat dissipation unit can be removed directly from the mounting unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram showing the relative positions of the heat dissipation unit and the mounting unit in an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the heat dissipation unit structure in an embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the installation unit structure in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1. Valve body; 2. Heat dissipation unit; 21. Heat dissipation box; 211. Grease discharge hole; 212. Grease injection hole; 213. Guide rod; 22. Liquid cooling pipe; 23. Guide rail; 231. Slide groove; 3. Mounting unit; 31. Positioning seat; 311. Positioning frame; 312. Positioning column; 313. Stop block; 314. Locking bolt; 32. Telescopic clamp; 321. Telescopic rod; 322. Clamping rod. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0034] An embodiment of the present application discloses an electromagnetic pilot-operated pressure-controlled unloading valve.

[0035] An electromagnetic pilot-operated pressure-controlled unloading valve comprises a solenoid pilot valve body 1, a heat sink 2, and a mounting unit 3. The heat sink 2 contacts the outer circumference of the valve body 1, and a heat-conducting medium is filled between the heat sink 2 and the valve body 1. The mounting unit 3 is mounted on the heat sink 2, and there are multiple mounting units 3, which cooperate with each other to clamp the valve body 1.

[0036] When the external environmental temperature is relatively high, the heat dissipation unit 2 can be detachably mounted on the valve body 1 through the mounting unit 3. These mounting units 3 are clamped on the valve body 1 through mutual cooperation to adapt to valve bodies 1 of different sizes. The heat dissipation unit 2 dissipates heat from the valve body 1. At the same time, the heat dissipation unit 2 separates part of the valve body 1 from the external environment, reducing the possibility that the external environment affects the temperature of the valve body 1. When it is not necessary to dissipate heat from the valve body 1, the heat dissipation unit 2 can be directly detached through the mounting unit 3.

[0037] The heat dissipation unit 2 includes a heat dissipation box 21 and a liquid cooling pipe 22. The heat dissipation box 21 is arranged in a rectangular shape. The side wall of the heat dissipation box 21 contacts the valve body 1, and openings are provided at both ends of the heat dissipation box 21, and sealing plates are fixedly installed at the openings. The liquid cooling pipe 22 is fixedly installed on the sealing plate, and the liquid cooling pipe 22 is internally connected to the inside of the heat dissipation box 21. A coolant is introduced into the liquid cooling pipe 22. In the embodiment of the present application, the coolant is water. The coolant is placed inside the heat dissipation box 21 from the liquid cooling pipe 22, and the inner wall of the heat dissipation box 21 dissipates heat from and cools down the valve body 1. At the same time, the heat dissipation box 21 blocks the valve body 1 from the external environment, reducing the possibility that the temperature of the valve body 1 rises due to the external environmental temperature.

[0038] A number of guide rods 213 are provided inside the heat dissipation box 21. The number of guide rods 213 increases the contact area of the coolant, facilitating further heat exchange between the box wall of the heat dissipation box 21 and the coolant to cool down. At the same time, a number of grease discharge holes 211 are provided on the side of the heat dissipation box 21 close to the valve body 1, and a grease injection hole 212 is provided on the side wall of the end of the heat dissipation box 21, and the grease injection hole 212 is communicated with the grease discharge holes 211. In the embodiment of the present application, the heat-conducting medium is heat-conducting silicone grease. After the heat dissipation box 21 contacts the valve body 1, the heat-conducting silicone grease is introduced through the grease injection hole 212 to the grease discharge holes 211 by a syringe and discharged from the grease discharge holes 211 to the space between the heat dissipation box 21 and the valve body 1. The heat-conducting silicone grease fills the gap between the heat dissipation box 21 and the valve body 1, increasing the contact area between the heat dissipation box 21 and the valve body 1, and further improving the heat dissipation effect on the valve body 1.

[0039] A guide rail 23 is provided on the side of the heat dissipation box 21 away from the valve body 1. A chute 231 arranged in a T shape is provided on the guide rail 23 along its own length direction. The mounting unit 3 includes a positioning seat 31 and a telescopic clamping jaw 32. The positioning seat 31 includes a positioning frame 311 and a positioning column 312. The positioning frame 311 is arranged in a U shape. The positioning frame 311 is sleeved on the guide rail 23 from the opening, and the positioning frame 311 is slidably matched with the guide rail 23. A locking bolt 314 is threadedly connected to the positioning frame 311, and the end of the locking bolt 314 abuts against the side wall of the guide rail 23. A rotation hole is provided on the positioning frame 311; the positioning column 312 penetrates through the rotation hole and is rotationally matched with the rotation hole. A blocking block 313 is provided at one end of the positioning column 312 close to the guide rail 23, and the blocking block 313 abuts against the inner wall of the chute 231.

[0040] The positioning post 312 and the blocking block 313 are arranged in a T-shape. Both the positioning post 312 and the blocking block 313 are cylindrical and coaxial. The positioning post 312 and the blocking block 313 both slide in engagement with the chute 231. The cylindrical positioning post 312 and the blocking block 313 both roll against the inner wall of the chute 231, reducing resistance to movement of the positioning post 312 and making it easier to adjust the position of the positioning post 312. When positioning the positioning seat 31 is required, the positioning post 312 is driven by the positioning frame 311 to slide along the length of the guide rail 23. Once the positioning seat 31 reaches the desired position, the locking bolt 314 on the positioning frame 311 abuts against the guide rail 23, thereby completing the positioning of the positioning seat 311.

[0041] The telescopic clamp 32 includes a telescopic rod 321 and a clamping rod 322. One end of the telescopic rod 321 is mounted on the positioning seat 31, and the telescopic rod 321 can adjust its own length; the clamping claw is mounted on the end of the telescopic rod 321 away from the positioning seat 31. In the embodiment of the present application, the clamping rod 322 is a round rod. When fixing the heat dissipation box 21, after sliding the positioning seat 31 to the set position, the positioning frame 311 is locked by the locking bolt 314, and then the positioning column 312 is rotated, and the overall length of the telescopic rod 321 is adjusted so that the clamping rod 322 is pressed against the valve body 1. The valve body 1 is clamped by multiple clamping rods 322 cooperating with each other, thereby improving the convenience and stability of installing the heat dissipation box 21.

[0042] The implementation principle of the electromagnetic pilot pressure control unloading valve of the embodiment of the present application is as follows: when fixing the heat dissipation box 21, after sliding the positioning seat 31 to the set position, the positioning frame 311 is locked by the locking bolt 314, and then the positioning column 312 is rotated and the overall length of the telescopic rod 321 is adjusted so that the clamping rod 322 is pressed against the valve body 1. The valve body 1 is clamped by multiple clamping rods 322 cooperating with each other, thereby improving the convenience and stability of installing the heat dissipation box 21. After the heat dissipation box 21 and the valve body 1 are contacted and fixed, the thermal grease is injected into the grease discharge hole 211 through the grease injection hole 212 by a syringe, and discharged from the grease discharge hole 211 to the space between the heat dissipation box 21 and the valve body 1. The thermal grease fills the gap between the heat dissipation box 21 and the valve body 1, increases the contact area between the heat dissipation box 21 and the valve body 1, and further improves the heat dissipation effect of the valve body 1. Coolant is introduced from the cooling tube 22 into the heat sink 21, dissipating heat and cooling the valve body 1 through the inner wall of the heat sink 21. Simultaneously, the heat sink 21 isolates the valve body 1 from the external environment, reducing the possibility of temperature rise in the valve body 1 due to the external environment. Several guide rods 213 are provided within the heat sink 21. These guide rods 213 increase the contact area between the coolant and the wall of the heat sink 21, further facilitating heat exchange and cooling between the coolant and the heat sink 21.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An electromagnetic pilot pressure control unloading valve, comprising a valve body of an electromagnetic pilot valve, characterized in that: A cooling device is provided on the valve body. The cooling device includes a heat dissipation unit and a mounting unit, where: The heat dissipation unit is in contact with the outer peripheral surface of the valve body, and a heat-conducting medium is filled between the heat dissipation unit and the valve body; The mounting unit is installed on the heat dissipation unit, and a plurality of mounting units are provided. The plurality of mounting units cooperate with each other to clamp the valve body.

2. The electromagnetic pilot pressure control unloading valve according to claim 1, characterized in that: The heat dissipation unit includes a heat dissipation box and a liquid cooling pipe, where: The heat dissipation box is in contact with the outer peripheral surface of the valve body, and a plurality of guide rods are provided inside the heat dissipation box; The liquid cooling pipe is communicated with the heat dissipation box, and a coolant is introduced into the liquid cooling pipe.

3. The electromagnetic pilot pressure control unloading valve according to claim 2, characterized in that: A plurality of grease discharge holes are formed on one side of the heat dissipation box close to the valve body, and a grease injection hole is provided on the end side wall of the heat dissipation box, and the grease injection hole is communicated with the grease discharge holes.

4. The electromagnetic pilot pressure control unloading valve according to claim 3, characterized in that: The heat-conducting medium is heat-conducting silicone grease.

5. The electromagnetic pilot pressure control unloading valve according to claim 1, characterized in that: A guide rail is provided on the side of the heat dissipation unit away from the valve body. The mounting unit includes a positioning seat and a telescopic clamping jaw, where: The positioning seat is slidably matched with the guide rail, and the positioning seat can be fixed on the guide rail; The telescopic clamping jaw is installed on the positioning seat. The telescopic clamping jaw is rotatably matched with the guide rail. A plurality of telescopic clamping jaws cooperate with each other to clamp the valve body.

6. The electromagnetic pilot pressure control unloading valve according to claim 5, characterized in that: A T-shaped chute is provided on the guide rail along its own length direction. The positioning seat includes a positioning frame and a positioning column, where: The positioning frame is in a U-shaped setting. The positioning frame is sleeved on the guide rail from the opening, and the positioning frame is slidably matched with the guide rail. A locking bolt is threadedly connected to the positioning frame, and the end of the locking bolt abuts against the side wall of the guide rail. A rotation hole is provided on the positioning frame; The positioning column penetrates through the rotation hole and is rotatably matched with the rotation hole. A blocking block is provided at one end of the positioning column close to the guide rail, and the blocking block abuts against the inner wall of the chute.

7. The electromagnetic pilot pressure control unloading valve according to claim 5, characterized in that: The telescopic clamping jaw includes a telescopic rod and a clamping rod, where: One end of the telescopic rod is installed on the positioning seat, and the telescopic rod can adjust its own length; The clamping jaw is installed at one end of the telescopic rod away from the positioning seat.

8. The electromagnetic pilot pressure control unloading valve according to claim 7, characterized in that: The clamping rod is a round rod.

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