Novel high-temperature and high-pressure pressure relief and cut-off device
By introducing pressure tanks, regulating tanks and thermal conductivity structures into the pressure relief device, combined with the cooling system, the existing pressure relief device cannot cope with pressure fluctuations and high-temperature and high-pressure environments, effectively managing pressure and temperature is achieved, ensuring safety and Stablize.
Patent Information
- Application Number
- CN202420978275.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing pressure relief devices cannot effectively deal with pressure fluctuations in the pipeline, cannot achieve pressure compensation, and lack effective cooling measures in high-temperature and high-pressure environments.
A new high-temperature and high-pressure pressure relief and cut-off device is designed, including a pressure tank and a regulating tank, equipped with a liquid conduit, a thermal structure and a regulating mechanism, and a fine-tuning pressure is achieved using springs and counterweight rods, and pressure and temperature management are managed in combination with the cooling system.
The pressure compensation and pressure relief functions are realized, which can effectively adjust the pressure in a high-temperature and high-pressure environment to ensure safety, and cool down through the thermal conduction plate and cooling system to avoid overheating of the pressure relief tube.
Smart Images
Figure CN222209969U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure relief, in particular to a novel high-temperature and high-pressure pressure relief and cut-off device. Background Art
[0002] The pressure relief device is a relatively mature technology. Its main function is to release the pressure in the pipeline to avoid the danger caused by the high pressure not being released. The existing pressure relief devices on the market are simple and reliable, and have a good pressure relief effect, but their functions are generally single, which is only pressure relief. Because in actual situations, the pressure in the pipeline is not constant. Sometimes the pressure is high and pressure relief adjustment is required. Sometimes there is insufficient pressure and pressure needs to be supplemented. The existing pressure relief devices cannot do this and need to be used in conjunction with a pressure compensation device. However, the pressure compensation device is expensive, and sometimes the pipeline pressure fluctuation is not large, and the use of a pressure compensation device will seem useless. The existing pressure relief devices do not have a compensation effect. Utility Model Content
[0003] In view of the problem that the existing pressure relief devices cannot cope with the pressure fluctuations in the pipeline, the utility model provides a novel high-temperature and high-pressure pressure relief and cut-off device, comprising an outer shell, wherein a pressure tank and a regulating tank are arranged inside the outer shell, hydraulic oil is arranged in the pressure tank and the regulating tank, and a liquid guide pipe is connected between the bottoms, a pressure piston and an regulating piston are movably installed inside the pressure tank and the regulating tank respectively, a heat-conducting structure is arranged on the pressure piston, an adjusting mechanism is arranged on the regulating piston, an inlet pipe, an outlet pipe and a pressure gauge are connected to the upper end of the pressure tank, a pressure relief pipe is arranged on the side wall of the pressure tank and above the pressure piston, and a cooling water inlet pipe and a cooling water outlet pipe are arranged on the side wall of the outer shell.
[0004] Preferably, the heat-conducting structure includes a circular groove vertically opened in the center position of the pressure piston, a slot is vertically opened in the center position of the circular groove, a circular heat-conducting plate and a columnar heat-conducting plate are fixedly installed in the circular groove and the slot respectively, the circular heat-conducting plate and the columnar heat-conducting plate are fixedly connected, a first upper retaining ring and a first lower retaining ring are fixedly installed in the pressure tank, and the first upper retaining ring is located below the pressure relief pipe.
[0005] Preferably, the adjusting mechanism includes a counterweight rod fixedly mounted on the upper end of the adjusting piston, the upper end of the counterweight rod passes through the upper ends of the adjusting tank and the outer shell and extends to the outside of the outer shell, the outside of the counterweight rod is covered with a spring, and the inside of the adjusting tank is fixedly mounted with a second upper retaining ring and a second lower retaining ring, and the upper and lower ends of the spring are respectively connected to the second upper retaining ring and the adjusting piston.
[0006] Preferably, a support rod is fixedly installed inside the shell, three fixing rings are respectively provided on both sides of the support rod, and the pressure tank and the regulating tank are fixedly installed in the three pairs of fixing rings.
[0007] Preferably, a first valve body is installed on the pressure relief pipe, and a second valve body is installed on the cooling water inlet pipe and the cooling water outlet pipe respectively.
[0008] Beneficial Effects
[0009] The utility model provides a novel high temperature and high pressure pressure relief and cut-off device, which has the following beneficial effects:
[0010] 1. This pressure relief device has a pressure compensation function. A pressure tank and an adjusting tank are arranged in the outer shell. The inlet and outlet pipes need to be connected to the installation pipe (pipe connection is a well-known technical common sense). When the pressure in the pressure tank and above the pressure piston increases, the pressure piston will be pressed downward, so that the upper space becomes larger, and the pressure piston will press the hydraulic oil below into the pressure relief pipe through the liquid guide pipe. The hydraulic oil in the pressure relief pipe will move upward against the adjusting piston and the counterweight rod and compress the spring above, so as to achieve the effect of fine-tuning the pressure relief. When the pressure is too high and pressure relief is required, it is only necessary to open the first valve body to relieve the pressure. When the pressure in the pipeline decreases, the pressure in the pressure tank and above the pressure piston will also decrease. At this time, the hydraulic oil in the adjusting tank will be pressed back into the pressure tank through the liquid guide pipe under the action of the spring elastic force. At this time, the pressure piston will move upward, so that the upper space becomes smaller, thereby achieving the effect of fine-tuning the pressure compensation.
[0011] 2. A circular heat conducting plate and a columnar heat conducting plate are provided inside the pressure piston. When the temperature is high, the circular heat conducting plate and the columnar heat conducting plate will transfer the heat to the hydraulic oil, and then fill the inside of the shell with water to cool it down through the cooling water inlet pipe and the cooling water outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model.
[0013] In the figure: 1. outer shell; 2. pressure tank; 3. first lower retaining ring; 4. columnar heat conducting plate; 5. pressure piston; 6. circular heat conducting plate; 7. pressure relief pipe; 8. first valve body; 9. first upper retaining ring; 10. inlet pipe; 11. pressure gauge; 12. outlet pipe; 13. support rod; 14. cooling water outlet pipe; 15. second upper retaining ring; 16. regulating tank; 17. spring; 18. counterweight rod; 19. cooling water inlet pipe; 20. liquid guide pipe; 21. second lower retaining ring; 22. fixing ring; 23. regulating piston. DETAILED DESCRIPTION
[0014] 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.
[0015] See also Figure 1 The utility model provides a technical solution: a novel high-temperature and high-pressure pressure relief and cut-off device, comprising a shell 1, a pressure tank 2 and a regulating tank 16 are arranged inside the shell 1, hydraulic oil is arranged in the pressure tank 2 and the regulating tank 16, and a liquid guide tube 20 is connected between the bottom, a pressure piston 5 and a regulating piston 23 are movably installed inside the pressure tank 2 and the regulating tank 16, respectively, a heat-conducting structure is arranged on the pressure piston 5, and an adjusting mechanism is arranged on the regulating piston 23, an inlet pipe 10 and an outlet pipe 12 and a pressure gauge 11 are connected to the upper end of the pressure tank 2, a pressure relief pipe 7 is arranged on the side wall of the pressure tank 2 and above the pressure piston 5, and a cooling water inlet pipe 19 and a cooling water outlet pipe 14 are arranged on the side wall of the shell 1;
[0016] In this design, the pressure tank 2 and the regulating tank 16 are located in the housing 1, and the cooling water inlet pipe 19 and the cooling water outlet pipe 14 are used to reduce the temperature. The size of the space above the pressure piston 5 inside the pressure tank 2 is adjusted by the contraction of the spring 17 and the lifting and lowering of the counterweight rod 18 and the regulating piston 23 to achieve the effect of fine-tuning the pressure relief and pressure replenishment.
[0017] The first valve body 8 is opened to control pressure relief and cut-off;
[0018] When the device is in use, the pressure piston 5 is located between the first upper retaining ring 9 and the first lower retaining ring 3, and the regulating piston 23 is located between the second upper retaining ring 15 and the second lower retaining ring 21, with a certain displacement space.
[0019] Further, the heat-conducting structure includes a circular groove vertically opened in the center position of the pressure piston 5, a slot is vertically opened in the center position of the circular groove, a circular heat-conducting plate 6 and a columnar heat-conducting plate 4 are fixedly installed in the circular groove and the slot respectively, the circular heat-conducting plate 6 and the columnar heat-conducting plate 4 are fixedly connected, and a first upper retaining ring 9 and a first lower retaining ring 3 are fixedly installed in the pressure tank 2, and the first upper retaining ring 9 is located below the pressure relief pipe 7;
[0020] The circular heat conducting plate 6 and the columnar heat conducting plate 4 can transfer part of the heat to the hydraulic oil, which is then cooled by the cooling water in the housing 1. The cooling water is circulated through the cooling water inlet pipe 19 and the cooling water outlet pipe 14 to avoid the danger caused by overheating of the pressure relief pipe 7.
[0021] Furthermore, the adjusting mechanism includes a counterweight rod 18 fixedly mounted on the upper end of the adjusting piston 23, the upper end of the counterweight rod 18 passes through the adjusting tank 16 and the upper end of the outer shell 1 and extends into the outside of the outer shell 1, the outer part of the counterweight rod 18 is sleeved with a spring 17, and the inner part of the adjusting tank 16 is fixedly mounted with a second upper retaining ring 15 and a second lower retaining ring 21, and the upper and lower ends of the spring 17 are respectively connected to the second upper retaining ring 15 and the adjusting piston 23.
[0022] Furthermore, a support rod 13 is fixedly installed inside the housing 1 , and three fixing rings 22 are respectively provided on both sides of the support rod 13 . The pressure tank 2 and the regulating tank 16 are fixedly installed in the three pairs of fixing rings 22 .
[0023] Furthermore, a first valve body 8 is installed on the pressure relief pipe 7, and a second valve body is installed on the cooling water inlet pipe 19 and the cooling water outlet pipe 14 respectively.
[0024] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.
[0025] Embodiment: During use, when the pressure in the inlet pipe 10 increases, the pressure in the pressure tank 2 will also increase, pressing the pressure piston 5 downward, so that the space above the inside of the pressure tank 2 becomes larger, and the pressure piston 5 will press the hydraulic oil into the pressure relief pipe 16 through the liquid guide pipe 20. The hydraulic oil in the pressure relief pipe 16 will move upward against the adjusting piston 23 and the counterweight rod 18 and compress the spring 17 above, thereby achieving the effect of fine-tuning the pressure relief. When the pressure is too high and pressure relief is required, it is only necessary to open the first valve body 8 to relieve the pressure. When the pressure in the inlet pipe 10 decreases, the hydraulic oil in the adjusting tank 16 will be pressed back into the pressure tank 2 through the liquid guide pipe 20 under the action of the elastic force of the spring 17. At this time, the pressure piston 5 will move upward, making the space above smaller, thereby achieving the effect of fine-tuning the pressure compensation.
[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A novel high-temperature and high-pressure pressure relief and cut-off device, comprising a housing (1), characterized in that: A pressure tank (2) and a regulating tank (16) are provided inside the housing (1), hydraulic oil is provided inside the pressure tank (2) and the regulating tank (16), and a liquid guide tube (20) is connected between the bottoms. A pressure piston (5) and a regulating piston (23) are movably installed inside the pressure tank (2) and the regulating tank (16), respectively. A heat conduction structure is provided on the pressure piston (5), and a regulating mechanism is provided on the regulating piston (23). An inlet pipe (10), an outlet pipe (12) and a pressure gauge (11) are connected to the upper end of the pressure tank (2), a pressure relief pipe (7) is provided on the side wall of the pressure tank (2) and above the pressure piston (5), and a cooling water inlet pipe (19) and a cooling water outlet pipe (14) are provided on the side wall of the housing (1).
2. A novel high-temperature and high-pressure pressure relief and cut-off device according to claim 1, characterized in that: The heat-conducting structure comprises a circular groove vertically opened in the center position of the pressure piston (5), a slot vertically opened in the center position of the circular groove, a circular heat-conducting plate (6) and a columnar heat-conducting plate (4) are fixedly installed in the circular groove and the slot respectively, the circular heat-conducting plate (6) and the columnar heat-conducting plate (4) are fixedly connected, and a first upper retaining ring (9) and a first lower retaining ring (3) are fixedly installed in the pressure tank (2), and the first upper retaining ring (9) is located below the pressure relief pipe (7).
3. A novel high temperature and high pressure pressure relief and cut-off device according to claim 1, characterized in that: The regulating mechanism comprises a counterweight rod (18) fixedly mounted on the upper end of the regulating piston (23); the upper end of the counterweight rod (18) penetrates the regulating tank (16) and the upper end of the outer shell (1) and extends into the outside of the outer shell (1); a spring (17) is sleeved on the outside of the counterweight rod (18); a second upper retaining ring (15) and a second lower retaining ring (21) are fixedly mounted inside the regulating tank (16); the upper and lower ends of the spring (17) are respectively connected to the second upper retaining ring (15) and the regulating piston (23).
4. A novel high temperature and high pressure pressure relief and cut-off device according to claim 1, characterized in that: A support rod (13) is fixedly installed inside the housing (1), and three fixing rings (22) are respectively provided on both sides of the support rod (13), and the pressure tank (2) and the regulating tank (16) are fixedly installed in the three pairs of fixing rings (22).
5. A novel high temperature and high pressure relief and cut-off device according to claim 1, characterized in that: A first valve body (8) is installed on the pressure relief pipe (7), and a second valve body is installed on the cooling water inlet pipe (19) and the cooling water outlet pipe (14), respectively.