CN209818832U - High-temperature high-pressure spring type safety valve - Google Patents
High-temperature high-pressure spring type safety valve Download PDFInfo
- Publication number
- CN209818832U CN209818832U CN201920509726.6U CN201920509726U CN209818832U CN 209818832 U CN209818832 U CN 209818832U CN 201920509726 U CN201920509726 U CN 201920509726U CN 209818832 U CN209818832 U CN 209818832U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve clack
- guide sleeve
- clack
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to a high temperature and high pressure spring type safety valve, which comprises a valve body, a valve clack, a valve seat, a valve cover, a valve rod, a guide sleeve and a pressure setting device, wherein the upper end surface of the valve seat is provided with a sealing surface matched with the lower end surface of the valve clack, the outer circle surface of the upper part of the valve clack is in movable fit with the inner hole wall of the guide sleeve, an adjusting sleeve is connected on the outer circle surface of the guide sleeve through a thread, the lower end surface of the upper adjusting sleeve and the lower end surface of the valve clack jointly form a recoil disc, and the; it is characterized in that a plurality of axial pressure relief channels are arranged between the inner circular wall of the upper adjusting sleeve and the outer circular surface of the guide sleeve. In the process of opening the valve clack, a medium in a cavity formed among the lower end surface of the guide sleeve, the outer circle surface of the valve clack and the inner wall of the guide sleeve is released through the pressure release channel along with the rising of the valve clack, so that the resistance generated to the valve clack is very small, and the valve clack has the advantages of accurate and stable opening pressure, high opening speed and the like.
Description
Technical Field
The utility model belongs to the valve field especially relates to a spring relief valve. The utility model is suitable for a high temperature high pressure operating mode.
Background
The spring type safety valve is widely applied to pressure control valves of pressure containers and pipelines, and structurally comprises a valve body, a valve clack, a valve seat, a valve cover, a valve rod and a pressure setting device, wherein the pressure setting device adopts a spring device. The valve seat is arranged in the inlet channel of the valve body, the outlet of the valve seat is communicated with the outlet channel of the valve body, the lower end face of the valve clack is internally provided with a sealing face matched with the valve seat, the outer side of the sealing face of the valve clack is provided with a recoil disc, and the outer cylindrical face of the recoil disc and the outer cylindrical face of the sealing face of the valve seat are respectively provided with an adjusting ring so as to adjust the opening pressure and the recoil pressure. The valve clack opening device has the defect that when the valve clack is opened, a medium in a cavity formed by the lower end surface of the guide sleeve, the outer circle surface of the valve clack and the inner wall of the guide sleeve can block the opening of the valve clack, and the opening pressure and the opening speed of the valve clack are influenced.
Disclosure of Invention
The utility model discloses to prior art's not enough, provide a valve clack opening pressure accuracy, stable, high temperature high pressure spring formula relief valve that opening speed is fast.
The technical scheme of the utility model includes valve body, valve clack, disk seat, valve gap, valve rod, uide bushing, pressure setting device, the disk seat up end has the sealed face of mutually supporting with the valve clack under the terminal surface, the outer disc of valve clack upper portion and the interior pore wall of uide bushing are clearance fit, through the threaded connection adjusting sleeve on the uide bushing outer cylindrical surface, terminal surface and valve clack under the upper adjusting sleeve terminal surface constitute the recoil dish jointly, the outer disc of valve clack lower part and the upper adjusting sleeve inner chamber wall clearance fit; it is characterized in that a plurality of axial pressure relief channels are arranged between the inner circular wall of the upper adjusting sleeve and the outer circular surface of the guide sleeve.
Preferably, the valve clack is embedded in a central hole in the lower end face of the valve clack seat, the valve clack seat and the valve clack seat are fixedly arranged at the lower end of the valve rod through a compression nut, and the outer circular surface of the upper part of the valve clack seat is in movable fit with the inner hole wall of the guide sleeve.
Preferably, a manual opening device is arranged at the upper end of the valve rod, the manual opening device comprises a wrench, a lifting frame and a lifting nut, the upper end of the valve rod penetrates through a center hole of the lifting frame, the lifting nut is installed on the valve rod at the upper end of the lifting frame, one end of the wrench is hinged to be installed on the outer circular wall of one side of the protection cover at the upper end of the valve cover, a convex block which is in contact with the lower plane at one end of the lifting frame is arranged at the upper end of the wrench, and the.
Preferably, the outer side of the sealing surface of the valve seat is connected with the lower adjusting ring through threads.
The utility model has the advantages that be equipped with a plurality of pressure release passageways between round wall in the recoil dish and the outer disc of uide bushing, open the in-process at the valve clack, the medium that constitutes in the cavity between terminal surface, the outer disc of valve clack and the uide bushing inner wall three releases through pressure release passageway along with the rising of valve clack under the uide bushing, and the resistance that produces the valve clack is very little, and valve clack opening pressure is accurate, stable, and opening speed is fast.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The high-temperature high-pressure spring type safety valve shown in fig. 1 comprises a valve body 1, a valve clack 6, a valve seat 4, a valve cover 11, a valve rod 12, a guide sleeve 10 and a pressure setting device, wherein the upper end surface of the valve seat 4 is provided with a sealing surface matched with the lower end surface of the valve clack 6, an outer cylindrical surface of the guide sleeve 10 is connected with an adjusting sleeve 8 through threads, the lower end surface of the upper adjusting sleeve 8 and the lower end surface of the valve clack 6 jointly form a recoil disc, and the outer cylindrical surface of the lower part of the valve clack 6 is in movable fit with; the valve is characterized in that a plurality of axial pressure relief channels are arranged between the inner circular wall of the upper adjusting sleeve 8 and the outer circular surface of the guide sleeve 10, the axial pressure relief channels are communicated with the outlet channel of the valve body 1 through radial pressure relief holes in the upper adjusting sleeve 8, when the valve clack 6 is opened, a medium in a cavity formed by the guide sleeve 10, the upper adjusting sleeve 8 and the valve clack 6 is released to the outlet channel of the valve body 1 through the axial pressure relief channels and the radial pressure relief holes, and the medium in the cavity is prevented from blocking the valve clack 6 to rise and open. An adjusting screw 5 is arranged on the valve body 1 on the side surface of the upper adjusting sleeve 8, and the axial position of the upper adjusting sleeve 8 is adjusted to achieve the opening height of the adjusting valve clack 6.
The valve clack 6 is embedded in a central hole in the lower end face of the valve clack seat 7, the valve clack seat and the valve clack seat are fixedly installed at the lower end of the valve rod 12 through a compression nut 9, the outer circular surface of the upper portion of the valve clack seat 7 is in dynamic fit with the inner hole wall of the guide sleeve 10, and the outer circular surface of the middle portion of the valve rod 12 is in dynamic seal fit with the central hole wall.
Set up manual opening device in valve rod 12 upper end, this manual opening device includes spanner 15, hoisting frame 16, lifting nut 17, the centre bore of hoisting frame 16 is passed to valve rod 12 upper end, lifting nut 17 installs on valve rod 12 of hoisting frame 16 upper end, spanner 15 one end is articulated to be installed on the outer circular wall of safety cover 18 one side of valve gap 11 upper end, spanner 15 upper end has the lug that touches with the lower plane top of hoisting frame 16 one end, hoisting frame 16 other end is articulated to be installed on the inner wall of safety cover 18 opposite side, when manual lifting spanner 15's the other end, jack-up hoisting frame 16, move valve rod 12 upward, carry out manual opening valve clack 6.
The outer side of the sealing surface of the valve seat 4 is connected with a lower adjusting ring 2 through threads, and a lower adjusting screw 3 is arranged on the valve body 1 on the outer side of the lower adjusting ring 2.
The pressure setting device comprises a spring 13, a setting nut 14, an upper spring seat and a lower spring seat, wherein the spring 13 is arranged on the valve rod 12 through the upper spring seat and the lower spring seat, and the pressure setting device belongs to the known technology.
Claims (4)
1. A high-temperature and high-pressure spring type safety valve comprises a valve body (1), a valve clack (6), a valve seat (4), a valve cover (11), a valve rod (12), a guide sleeve (10) and a pressure setting device, wherein the upper end surface of the valve seat (4) is provided with a sealing surface which is matched with the lower end surface of the valve clack (6), an upper adjusting sleeve (8) is connected to the outer cylindrical surface of the guide sleeve (10) through threads, the lower end surface of the upper adjusting sleeve (8) and the lower end surface of the valve clack (6) jointly form a recoil disc, and the outer cylindrical surface of the lower part of the valve clack (6) is movably matched with the inner; the axial pressure relief valve is characterized in that a plurality of axial pressure relief channels are arranged between the inner circular wall of the upper adjusting sleeve (8) and the outer circular surface of the guide sleeve (10), and the axial pressure relief channels are communicated with an outlet channel of the valve body (1) through radial pressure relief holes in the upper adjusting sleeve (8).
2. A high-temperature high-pressure spring type safety valve as claimed in claim 1, wherein the valve flap (6) is fitted into a central hole in the lower end surface of the valve flap seat (7), the valve flap seat and the valve flap seat are fixedly mounted at the lower end of the valve stem (12) through a compression nut (9), and the outer circular surface of the upper part of the valve flap seat (7) is movably matched with the inner hole wall of the guide sleeve (10).
3. A high-temperature high-pressure spring type safety valve according to claim 1 or 2, wherein a manual opening device is arranged at the upper end of the valve rod (12), the manual opening device comprises a wrench (15), a lifting frame (16) and a lifting nut (17), the upper end of the valve rod (12) passes through the central hole of the lifting frame (16), the lifting nut (17) is arranged on the valve rod (12) at the upper end of the lifting frame (16), one end of the wrench (15) is hinged and arranged on the outer circular wall at one side of the protection cover (18) at the upper end of the valve cover (11), the upper end of the wrench (15) is provided with a convex block which is contacted with the lower plane at one end of the lifting frame (16), and the other end of the lifting frame (16) is.
4. A high-temperature high-pressure spring type safety valve according to claim 1 or 2, characterized in that the outer side of the sealing surface of the valve seat (4) is connected with the lower adjusting ring (2) through threads, and the lower adjusting screw (3) is arranged on the valve body (1) at the outer side of the lower adjusting ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920509726.6U CN209818832U (en) | 2019-04-16 | 2019-04-16 | High-temperature high-pressure spring type safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920509726.6U CN209818832U (en) | 2019-04-16 | 2019-04-16 | High-temperature high-pressure spring type safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818832U true CN209818832U (en) | 2019-12-20 |
Family
ID=68880037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920509726.6U Active CN209818832U (en) | 2019-04-16 | 2019-04-16 | High-temperature high-pressure spring type safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090790A (en) * | 2021-04-19 | 2021-07-09 | 延安大学 | Spring pressure vessel relief valve for chemical production |
-
2019
- 2019-04-16 CN CN201920509726.6U patent/CN209818832U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090790A (en) * | 2021-04-19 | 2021-07-09 | 延安大学 | Spring pressure vessel relief valve for chemical production |
| CN113090790B (en) * | 2021-04-19 | 2023-05-26 | 延安大学 | Spring type pressure vessel safety valve for chemical production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105673900A (en) | Air reducing valve used for ships | |
| CN209818832U (en) | High-temperature high-pressure spring type safety valve | |
| CN101245861B (en) | Non-leakage flat gate valve | |
| CN103591347A (en) | Magnetic force type emergency release valve | |
| CN106369200B (en) | A kind of gas spring overflow valve | |
| CN202301250U (en) | Ultrahigh pressure proportional relief valve | |
| WO2019019523A1 (en) | Safety valve having double-sealing function | |
| KR101147815B1 (en) | Cylinder Loaded Type Closed Safety Valve | |
| CN109237056B (en) | Cartridge formula preforming valve | |
| CN205036925U (en) | Split type pilot valve of lower valve clack of guide's formula relief valve | |
| CN210623581U (en) | Stop valve | |
| CN205036924U (en) | Valve clack divides body structure guide formula relief valve under pilot valve | |
| CN103542153B (en) | Overpressure prevention pressure-relief valve | |
| CN204553958U (en) | Back pressure automatic adjuster spring formula safety valve | |
| CN210088095U (en) | Large-caliber multistage pilot operated safety valve | |
| CN209026309U (en) | A kind of compound voltage reducing silencing sleeve regulating valve | |
| CN113137569A (en) | Vehicle-mounted ultrahigh-pressure hydrogen storage cylinder combination valve | |
| CN206846013U (en) | Mud special safety valve | |
| CN219139952U (en) | Compact pilot-operated safety valve | |
| CN219549694U (en) | High-performance pilot operated safety valve | |
| CN216923348U (en) | Gas self-closing valve | |
| CN206017965U (en) | A kind of novel pneumatic diaphragm valve | |
| CN212616550U (en) | Net weight type safety valve | |
| CN110296247B (en) | Double-seal regulating valve | |
| CN202646725U (en) | High-temperature and high-pressure safety valve with backpressure control sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |