Safety relief valve
By designing a safe pressure relief valve including a pressure relief valve assembly, a fixing assembly and a pressure relief assembly, the problem of poor operation stability and repeatability in the prior art is solved, and more effective pressure relief adjustment and stability improvement in complex industrial environments are achieved.
Patent Information
- Application Number
- CN202520146314.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2035-01-22
AI Technical Summary
When facing a complex and changing industrial production environment, the existing safety pressure relief valve has poor operation stability and repeatability, and the response is not timely and inaccurate when pressure fluctuates. The scope of application is limited, making it difficult to meet the diverse temperature, pressure and medium changes in industrial production.
A safety pressure relief valve is designed, including a pressure relief valve assembly, a fixing assembly and a pressure relief assembly. By adjusting the setting of the pressure relief assembly, the pressure relief adjustment and stability improvement are achieved using components such as the pressure relief arm, bump, adjustment seat and telescopic pressure relief rod.
During the pressure relief adjustment process, the device can effectively adjust the distance between the pressure relief head and the water inlet through the coordination of the adjustment seat and the connecting rod, improve the pressure relief effect and stability, and adapt to a variety of industrial production environments.
Smart Images
Figure CN222633923U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a safety pressure relief valve. Background Art
[0002] In many industrial production processes, such as chemical, petroleum, natural gas, and electric power industries, pipeline systems and pressure vessels are often under certain pressure;
[0003] When the internal pressure of the system exceeds the design allowable value due to various reasons (such as operating errors, equipment failures, process abnormalities, etc.), if the pressure cannot be released in time and effectively, it will cause serious safety accidents, such as pipeline ruptures and container explosions, causing huge damage to personnel life safety and production equipment;
[0004] However, in terms of structural design, the internal structure is traditional and the layout of components is not reasonable, resulting in large volume and uneven force. For example, the valve core and valve seat are not well sealed and easy to leak. In terms of reliability, the action stability and repeatability are poor, and the response to pressure fluctuations is not timely and accurate. The scope of application is also limited. It is mostly aimed at specific working conditions and cannot flexibly adapt to the various temperature, pressure and medium changes in industrial production. It is difficult to meet the needs of complex and changeable industrial production environments;
[0005] Therefore, the utility model proposes a safety pressure relief valve. Utility Model Content
[0006] The utility model aims to solve the shortcomings in the prior art and provides a safety pressure relief valve.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solution: a safety pressure relief valve, comprising:
[0008] A pressure relief valve assembly, the pressure relief valve assembly is composed of a lower valve seat and a cylinder, the cylinder is connected to the top of the lower valve seat, one side of the lower valve seat is fixedly connected to a pressure relief port, a mounting frame is provided on the top of the cylinder, an adjusting seat is rotatably connected to the mounting frame, a connecting rod passing through the cylinder is provided on the mounting frame, a telescopic pressure relief rod is provided at the bottom of the connecting rod, and a pressure relief head is provided at the bottom of the telescopic pressure relief rod;
[0009] A fixing assembly, the fixing assembly is composed of a first sleeve arranged on the cylinder and a fixing frame safety frame, the fixing frame safety frame is rotatably connected to the first sleeve, and the fixing frame safety frame is connected to an end of the adjustment seat away from the connecting rod;
[0010] The regulating pressure relief component is composed of a second sleeve arranged below the first sleeve, a sliding seat and a pressure relief arm. The sliding seat is rotatably connected to the second sleeve, and a protrusion is arranged on the top of the pressure relief arm.
[0011] Furthermore, the bottom of the pressure relief arm is rotatably connected to the sliding seat, and the protrusion contacts the bottom of the adjustment seat away from one end of the connecting rod.
[0012] The beneficial effect of adopting the above further solution is that: under the action of the protrusion, when the pressure relief arm is flipped and lifted upward, the protrusion and the bottom of the adjustment seat are squeezed, thereby driving the adjustment seat to complete the tilting and lifting action instruction.
[0013] Furthermore, the inner wall diameters of the first sleeve and the second sleeve are adapted to the diameter of the cylinder.
[0014] The beneficial effect of adopting the above further solution is that under the action of the first sleeve and the second sleeve, the sliding seat and the fixed frame safety frame are slidably connected on the first sleeve and the second sleeve respectively, so as to facilitate the subsequent adjustment of the operating state of the device.
[0015] Furthermore, the bottom of the lower valve seat is fixedly connected with a water inlet, and the top of the water inlet is in contact with the bottom of the pressure relief head.
[0016] The beneficial effect of adopting the above further solution is that: under the action of the water inlet, the water inlet and the pressure relief head are in contact and fit with each other, so that the liquid in the lower valve seat is discharged through the pressure relief port during normal use.
[0017] Furthermore, the telescopic pressure relief rod is arranged in the cylinder, and the telescopic pressure relief rod is a telescopic structure.
[0018] The beneficial effect of adopting the above further scheme is: under the action of the telescopic pressure relief rod, the telescopic pressure relief rod is telescopically connected in the cylinder. The advantage of being telescopic is that the pressure relief head is subsequently driven by water pressure to move up and down, so that the telescopic pressure relief rod is contracted.
[0019] Furthermore, one end of the connecting rod located above the adjustment seat is mutually clamped with the adjustment seat.
[0020] The beneficial effect of adopting the above further scheme is: by interlocking the top of the connecting rod and the adjustment seat, when the adjustment seat is tilted upward, the connecting rod can be driven to be squeezed and displaced downward, thereby driving the telescopic pressure relief rod to move downward, and adjusting the distance between the pressure relief head and the water inlet.
[0021] Furthermore, a fixing limit pin is inserted between one end of the pressure relief arm close to the connecting rod and the mounting frame.
[0022] The beneficial effect of adopting the above further solution is that since the pressure relief arm and the connecting rod are of a split structure, the pressure relief arm and the connecting rod need to be connected and fixed by a limit pin during use.
[0023] Compared with the prior art, the advantages and positive effects of the utility model are:
[0024] 1. In the utility model, by adjusting the setting of the pressure relief assembly so that the device can perform pressure relief adjustment, the pin at the bottom of the pressure relief arm is pulled out, and then inserted into the connection between the pressure relief arm and the mounting bracket, and the mounting bracket and the pressure relief arm are connected and fixed. At this time, the pressure relief arm is pulled outward so that the protrusion is squeezed and contacted with one end of the adjustment seat, and the gear adjustment seat is lifted upward, so that the connecting rod drives the telescopic pressure relief rod and the pressure relief head to lift up, and the distance between the pressure relief head and the water inlet is increased, so that the liquid can be discharged through the pressure relief port and the water inlet to achieve the pressure relief effect.
[0025] 2. In the utility model, under the action of the fixing assembly, when the device is not in use, the fixing assembly is rotated to one side of the pressure relief arm, and the top of the fixing frame safety frame is fixed to the adjustment seat by a latch. At this time, under the action of the fixing frame safety frame, the adjustment seat is limited to avoid the adjustment seat being lifted up during use to trigger the pressure relief effect, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a front view of a safety pressure relief valve of the utility model;
[0027] Figure 2 This is a disassembled diagram of a safety pressure relief valve of the utility model;
[0028] Figure 3 This is a disassembled diagram of a regulating pressure relief component in a safety pressure relief valve of the utility model;
[0029] Figure 4 The utility model is a structural diagram of a fixed component in a safety pressure relief valve.
[0030] Attached photos
[0031] 1. Pressure relief valve assembly; 11. Lower valve seat; 12. Water inlet; 13. Pressure relief port; 14. Cylinder; 15. Telescopic pressure relief rod; 151. Pressure relief head; 152. Connecting rod; 16. Adjustment seat; 17. Mounting frame;
[0032] 2. Fixing assembly; 21. First sleeve; 22. Fixing frame safety frame;
[0033] 3. Adjusting pressure relief assembly; 31. Pressure relief arm; 32. Bump; 33. Sliding seat; 34. Second sleeve. DETAILED DESCRIPTION
[0034] 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.
[0035] like Figure 1-4 As shown, the utility model provides a technical solution: a safety pressure relief valve, comprising:
[0036] The pressure relief valve assembly 1 is composed of a lower valve seat 11 and a cylinder 14. The cylinder 14 is connected to the top of the lower valve seat 11. One side of the lower valve seat 11 is fixedly connected to a pressure relief port 13. A mounting frame 17 is provided on the top of the cylinder 14. An adjusting seat 16 is rotatably connected to the mounting frame 17. A connecting rod 152 that passes through the cylinder 14 is provided on the mounting frame 17. A telescopic pressure relief rod 15 is provided at the bottom of the connecting rod 152. A pressure relief head 151 is provided at the bottom of the telescopic pressure relief rod 15.
[0037] The regulating pressure relief component 3 is composed of a second sleeve 34, a sliding seat 33 and a pressure relief arm 31 arranged below the first sleeve 21. The sliding seat 33 is rotatably connected to the second sleeve 34. A protrusion 32 is arranged on the top of the pressure relief arm 31. The bottom of the pressure relief arm 31 is rotatably connected to the sliding seat 33. The protrusion 32 contacts the bottom of the end of the regulating seat 16 away from the connecting rod 152. The bottom of the lower valve seat 11 is fixedly connected to the water inlet 12. The top of the water inlet 12 contacts the bottom of the pressure relief head 151. The telescopic pressure relief rod 15 is arranged in the cylinder 14. The telescopic pressure relief rod 15 is a telescopic structure. The setting of the pressure relief assembly 3 is adjusted so that during the pressure relief adjustment process of the device, the pin at the bottom of the pressure relief arm 31 is pulled out and then inserted into the connection between the pressure relief arm 31 and the mounting bracket 17 to connect and fix the mounting bracket 17 and the pressure relief arm 31. At this time, the pressure relief arm 31 is pulled outward so that the protrusion 32 is squeezed and contacted with one end of the adjustment seat 16, and the gear adjustment seat 16 is lifted upward, so that the connecting rod 152 drives the telescopic pressure relief rod 15 and the pressure relief head 151 to be lifted, thereby increasing the distance between the pressure relief head 151 and the water inlet 12, so that the liquid can be discharged through the pressure relief port 13 and the water inlet 12 to achieve the pressure relief effect.
[0038] Furthermore, Figure 2 - Figure 4As shown: a fixing component 2, the fixing component 2 is composed of a first sleeve 21 and a fixing frame safety frame 22 arranged on the cylinder 14, the fixing frame safety frame 22 is rotatably connected to the first sleeve 21, the fixing frame safety frame 22 is connected to the end of the adjusting seat 16 away from the connecting rod 152, the end of the connecting rod 152 located above the adjusting seat 16 is mutually clamped with the adjusting seat 16, and a fixing limit pin is inserted between the end of the pressure relief arm 31 close to the connecting rod 152 and the mounting frame 17. Under the action of the fixing component 2, when the device is not in use, by rotating the fixing component 2 to one side of the pressure relief arm 31, and fixing the top of the fixing frame safety frame 22 to the adjusting seat 16 by the latch, at this time, under the action of the fixing frame safety frame 22, the adjusting seat 16 is limited to avoid the adjusting seat 16 being lifted up during use, causing the pressure relief effect to be triggered, thereby improving the stability of the device.
[0039] The above solution still has the problem of adjusting the fixing component 2 and the adjusting pressure relief component 3, such as Figure 3 As shown: In this solution, the inner wall diameters of the first sleeve 21 and the second sleeve 34 are adapted to the diameter of the cylinder 14. Under the action of the first sleeve 21 and the second sleeve 34, the sliding seat 33 and the fixed frame safety frame 22 are slidably connected on the first sleeve 21 and the second sleeve 34 respectively, so as to facilitate the later adjustment of the operating state of the device.
[0040] Working principle: Figure 1-4 As shown, during the pressure relief adjustment process of the device, the pin at the bottom of the pressure relief arm 31 is pulled out and then inserted into the connection between the pressure relief arm 31 and the mounting bracket 17 to connect and fix the mounting bracket 17 and the pressure relief arm 31. At this time, the pressure relief arm 31 is pulled outward so that the protrusion 32 is squeezed and contacted with one end of the adjustment seat 16, and the gear adjustment seat 16 is lifted upward, so that the connecting rod 152 drives the telescopic pressure relief rod 15 and the pressure relief head 151 to lift, and the distance between the pressure relief head 151 and the water inlet 12 is increased, so that the liquid can be discharged through the pressure relief port 13 and the water inlet 12 for pressure relief. When the device is not in use, the fixing assembly 2 is rotated to one side of the pressure relief arm 31, and the top of the fixing frame safety frame 22 is fixed to the adjustment seat 16 by the pin. At this time, under the action of the fixing frame safety frame 22, the adjustment seat 16 is limited.
[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A safety pressure relief valve, characterized in that: include: A pressure relief valve assembly (1), the pressure relief valve assembly (1) comprising a lower valve seat (11) and a cylinder (14), the cylinder (14) being connected to the top of the lower valve seat (11), one side of the lower valve seat (11) being fixedly connected to a pressure relief port (13), a mounting frame (17) being arranged at the top of the cylinder (14), an adjusting seat (16) being rotatably connected to the mounting frame (17), a connecting rod (152) penetrating the cylinder (14) being arranged on the mounting frame (17), a telescopic pressure relief rod (15) being arranged at the bottom of the connecting rod (152), and a pressure relief head (151) being arranged at the bottom of the telescopic pressure relief rod (15); A fixing assembly (2), the fixing assembly (2) comprising a first sleeve (21) arranged on the cylinder (14) and a fixing frame safety frame (22), the fixing frame safety frame (22) being rotatably connected to the first sleeve (21), and the fixing frame safety frame (22) being connected to an end of the adjustment seat (16) away from the connecting rod (152); The regulating pressure relief assembly (3) is composed of a second sleeve (34) arranged below the first sleeve (21), a sliding seat (33) and a pressure relief arm (31); the sliding seat (33) is rotatably connected to the second sleeve (34); and a protrusion (32) is arranged on the top of the pressure relief arm (31).
2. A safety pressure relief valve according to claim 1, characterized in that: The bottom of the pressure relief arm (31) is rotatably connected to the sliding seat (33), and the protrusion (32) contacts the bottom of the end of the adjustment seat (16) away from the connecting rod (152).
3. A safety pressure relief valve according to claim 1, characterized in that: The inner wall diameters of the first sleeve (21) and the second sleeve (34) are matched to the diameter of the cylinder (14).
4. A safety pressure relief valve according to claim 1, characterized in that: The bottom of the lower valve seat (11) is fixedly connected to a water inlet (12), and the top of the water inlet (12) contacts the bottom of the pressure relief head (151).
5. A safety pressure relief valve according to claim 1, characterized in that: The telescopic pressure relief rod (15) is arranged in the cylinder (14), and the telescopic pressure relief rod (15) is a telescopic structure.
6. A safety pressure relief valve according to claim 1, characterized in that: One end of the connecting rod (152) located above the adjustment seat (16) is mutually clamped with the adjustment seat (16).
7. A safety pressure relief valve according to claim 1, characterized in that: A fixing limit pin is inserted between one end of the pressure relief arm (31) close to the connecting pull rod (152) and the mounting frame (17).