Valve element of HPP pressure release valve

Abstract

According to the HPP pressure release valve element provided by the utility model, the valve rod can be directly controlled to be in hard sealing connection with a pressure release channel of a high-pressure pipe or released from the hard sealing connection, so that the pressure release state is controlled, and the valve element body is more stable than a conventional pressure release valve element. According to the pressure release valve, only a single channel and a movable control mechanism are simply arranged in the valve element body to drive the valve rod to move, so that the valve element structure of the pressure release valve is simplified, and therefore, when the pressure release valve is produced and assembled, the machining precision requirement and the assembly difficulty can be reduced, the productivity is improved, and the production cost is reduced; due to the fact that the structure of the valve element body is simplified, namely the matching relation between the valve element body and other components is simplified, the failure rate is reduced when the valve element body controls the pressure relief state, and stability is improved. The utility model belongs to the technical field of pressure release valves.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure relief valves, and in particular relates to a valve core of an HPP pressure relief valve. Background Art

[0002] A pressure relief valve core is a specialized valve element used in pressure relief valves and is part of the field of valve technology. Its primary function is to control pressure, preventing system pressure from exceeding safe limits, thereby protecting systems and equipment from overpressure damage. Conventional pressure relief valves require various internal connections to the pressurized space (such as a pressurized container) through various channels, and multiple components must collaborate to slowly and accurately release the substance or air within while maintaining resistance to high pressure. Consequently, the production and assembly of pressure relief valves requires high precision and a relatively difficult assembly process, resulting in increased production costs and relatively low production capacity. Utility Model Content

[0003] The purpose of the utility model is to provide a HPP pressure relief valve core to simplify the valve core structure of the pressure relief valve, thereby reducing the processing accuracy requirements and assembly difficulty during the production and assembly of the pressure relief valve, thereby improving production capacity and production costs.

[0004] The HPP pressure relief valve spool includes a spool body, a pressure relief channel is provided in the spool body, a right conical hole is provided at the right end of the pressure relief channel, a high-pressure pipe is connected to the right conical hole through a hard seal, so that the high-pressure pipe and the pressure relief channel are directly connected to form a channel, the high-pressure pipe is used to be connected to the pressure space, a left conical hole is provided at the left end of the pressure relief channel, a valve stem is provided next to the left conical hole, the valve stem is transmission-connected to a movable control mechanism, and the movable control mechanism is used to drive the valve stem to be hard-sealed and connected to the left conical hole.

[0005] According to the technical solution, the utility model can achieve the following beneficial effects:

[0006] 1. Since the high-pressure pipe is connected to the right conical hole through a hard seal, the high-pressure pipe and the pressure relief channel are directly connected into one channel. Therefore, it is possible to simply use the movable control mechanism to drive the valve stem to separate from the left conical hole until the hard seal connection is released to relieve the pressure of the pressure space connected to the high-pressure pipe, or to drive the valve stem to connect to the left conical hole through a hard seal to achieve sealing, thereby achieving efficient control of the pressure relief state;

[0007] 2. Because the valve stem can directly control the hard-seal connection or release of the hard-seal connection with the pressure relief channel of the high-pressure pipe to achieve a controlled pressure relief state, the valve core body, compared to a conventional pressure relief valve core, only needs to be simply provided with a single channel and a simple movable control mechanism to drive the movement of the valve stem, thereby simplifying the valve core structure of the pressure relief valve. Therefore, during the production and assembly of the pressure relief valve, the processing precision requirements and the assembly difficulty can be reduced, thereby improving production capacity and reducing production costs;

[0008] 3. Since the structure of the valve core body is simplified, that is, the coordination relationship between the valve core body and other components is simplified, the failure rate of the valve core body is reduced and the stability is improved when controlling the pressure relief state.

[0009] In order to further optimize the above technical solution, it can be optionally combined with one or more of the following implementation methods without conflict.

[0010] In some embodiments, an overflow space is provided at the open end of the right truncated cone hole, and the high-pressure pipe passes through the overflow space and is hard-sealed and connected to the right truncated cone hole;

[0011] According to the technical solution, when the pressure in the pressure space is too high and causes overflow at the connection between the right cone and the high-pressure pipe, the overflowing material can be collected and the material can be prevented from being ejected outward.

[0012] In some embodiments, the outer end of the overflow space is provided with an opening, the inner wall of the opening is provided with an internal thread for fixing the blocking member, and the overflow space is provided with a safety overflow hole, the aperture of the overflow hole is smaller than the aperture of the pressure relief channel;

[0013] According to the technical solution, when the pressure in the pressure space is relatively too high, the material in the pressure space will overflow into the overflow space, and the material in the overflow space will be discharged through the overflow hole to relieve the pressure in the pressure space, thereby achieving overpressure protection.

[0014] In some embodiments, a support platform fixed in the pressure relief valve protrudes outward from the left end of the valve core body, the support platform is truncated, and a directional surface is cut into the outer peripheral wall of the support platform;

[0015] According to the technical solution, when the valve core body is assembled in the pressure relief valve, the pressure relief channel can be continuously and stably maintained at a certain position, so that the high-pressure pipe and the valve stem can stably cooperate with the pressure relief channel. At the same time, it is convenient to align the valve core body when assembling it.

[0016] In some embodiments, one end surface of the support platform protrudes outwardly with a positioning truncated cone for positioning the right truncated cone hole and the left truncated cone hole, and the outer peripheral wall of the positioning truncated cone is inclined outwardly;

[0017] According to the technical solution, the direction of the valve core body can be easily aligned during the process of assembling the valve core body to the pressure relief valve.

[0018] In some embodiments, the valve core body is cylindrical, and a wrench surface is cut on the right end of the valve core body;

[0019] According to the technical solution, it is convenient to assemble and fix the valve core body in the pressure relief valve or to disassemble the valve core body from the pressure relief valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the present invention, the following is a brief description of the drawings and reference numerals required to be used in the description of the specific implementation.

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is another three-dimensional diagram of the present utility model;

[0023] Figure 3 It is a cross-sectional view of the present utility model.

[0024] Reference numerals:

[0025] 1. Valve core body; 11. Pressure relief channel; 2. Right frustum hole; 21. High-pressure pipe; 22. Overflow space; 23. Opening; 24. Internal thread; 25. Safety overflow hole; 26. Wrench surface; 3. Left frustum hole; 31. Valve stem; 32. Movable control mechanism; 33. Support platform; 34. Orientation surface; 35. Positioning frustum. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concept of the present invention.

[0027] like Figures 1 to 3 As shown, this specific embodiment provides a HPP pressure relief valve core, which includes a valve core body 1, a high-pressure pipe 21 and a movable control mechanism 32.

[0028] The valve core body 1 is provided with a pressure relief channel 11, and a right truncated cone hole 2 is provided at the right end of the pressure relief channel 11. An overflow space 22 is provided at the opening 23 end of the right truncated cone hole 2. The outer end of the overflow space 22 is provided with an opening 23, and the inner wall of the opening 23 is provided with an internal thread 24 for fixing a plugging member. The overflow space 22 is provided with a safety overflow hole 25, and the aperture of the overflow hole is smaller than the aperture of the pressure relief channel 11. The high-pressure pipe 21 passes through the overflow space 22 and is hard-sealed to the right truncated cone hole 2. The high-pressure pipe 21 and the pressure relief channel 11 are directly connected to form a channel, and the high-pressure pipe 21 is used to connect to the pressure space.

[0029] The valve core body 1 is cylindrical, and a wrench surface 26 is cut on the right end of the valve core body 1 .

[0030] A left conical hole 3 is provided at the left end of the pressure relief channel 11. The movable control mechanism 32 is in transmission connection with a valve stem 31 disposed adjacent to the left conical hole 3. The movable control mechanism 32 is configured to drive the valve stem 31 into a hard-seal connection with the left conical hole 3 or to move the valve stem 31 away from the left conical hole 3. The movable control mechanism 32 may be a hydraulic cylinder, a spring, or a screw module.

[0031] The left end of the valve core body 1 protrudes outwardly from a support platform 33 fixed within the pressure relief valve. The support platform 33 is truncated cone-shaped, with an orientation surface 34 cut into its outer peripheral wall. One end of the support platform 33 protrudes outwardly from a positioning platform 35 for positioning the right and left truncated cone holes 2 and 3. The outer peripheral wall of the positioning platform 35 is tilted outward. The pressure relief passage 11 passes through the support platform 33 and the positioning platform 35. The pressure relief passage 11 passes through the support platform 33 and the positioning platform 35, and the left truncated cone hole 3 is located on the positioning platform 35.

[0032] The movable control mechanism 32 is driven to separate from the left conical hole 3 to release the hard sealing connection or to be hard sealed with the left conical hole 3, so as to relieve the pressure and seal the pressure space connected to the high-pressure pipe 21, thereby adjusting the pressure of the pressure space.

Claims

1. A HPP pressure relief valve core, characterized by: The invention comprises a valve core body (1), wherein a pressure relief channel (11) is provided in the valve core body (1), a right conical hole (2) is provided at the right end of the pressure relief channel (11), the right conical hole (2) is connected to a high-pressure pipe (21) through a hard seal, so that the high-pressure pipe (21) and the pressure relief channel (11) are directly connected to form a channel, the high-pressure pipe (21) is used to be connected to a pressure space, a left conical hole (3) is provided at the left end of the pressure relief channel (11), a valve stem (31) is provided next to the left conical hole (3), the valve stem (31) is connected to a movable control mechanism (32) in a transmission manner, and the movable control mechanism (32) is used to drive the valve stem (31) to be hard-sealed with the left conical hole (3).

2. The HPP pressure relief valve core according to claim 1, characterized in that: The right truncated cone hole (2) is provided with an overflow space (22), and the high-pressure pipe (21) passes through the overflow space (22) and is hard-sealedly connected to the right truncated cone hole (2).

3. The HPP pressure relief valve core according to claim 2, characterized in that: The outer end of the overflow space (22) is provided with an opening (23), the inner wall of the opening (23) is provided with an internal thread (24) for fixing the blocking member, and the overflow space (22) is provided with a safety overflow hole (25), the aperture of the overflow hole being smaller than the aperture of the pressure relief channel (11).

4. The HPP pressure relief valve core according to claim 2, characterized in that: A support platform (33) fixed in the pressure relief valve protrudes outward from the left end of the valve core body (1); the support platform (33) is in the shape of a truncated cone, and a directional surface (34) is cut on the outer peripheral wall of the support platform (33).

5. The HPP pressure relief valve core according to claim 4, characterized in that: One end surface of the support platform (33) protrudes outwardly with a positioning truncated platform (35) for positioning the right truncated platform hole (2) and the left truncated platform hole (3), and the outer peripheral wall of the positioning truncated platform (35) is tilted outwardly.

6. The HPP pressure relief valve core according to claim 5, characterized in that: The valve core body (1) is cylindrical, and a wrench surface (26) is cut on the right end of the valve core body (1).

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