CN110541954A - Thread type safety valve - Google Patents
Thread type safety valve Download PDFInfo
- Publication number
- CN110541954A CN110541954A CN201910947059.4A CN201910947059A CN110541954A CN 110541954 A CN110541954 A CN 110541954A CN 201910947059 A CN201910947059 A CN 201910947059A CN 110541954 A CN110541954 A CN 110541954A
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- valve body
- adjusting sleeve
- sealing ring
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a threaded safety valve, which comprises a valve body, a valve seat, a valve clack, a valve cover and a pressure setting device, wherein the pressure setting device adopts a spring pressure adjusting device, and the side wall of the valve body is provided with a discharge port communicated with a valve cavity; the method is characterized in that: an adjusting sleeve is arranged on the outer circular wall of the middle of the valve body and is in movable fit with the outer circular wall of the middle of the valve body, an upper O-shaped sealing ring is arranged between the inner wall of the adjusting sleeve and the outer circular wall on the upper side of the valve body discharge port, a lower O-shaped sealing ring is arranged between the inner wall of the adjusting sleeve and the outer circular wall on the lower side of the valve body discharge port, an outlet connecting pipe communicated with the valve body discharge port is arranged on the side wall of the adjusting sleeve between the upper O-shaped sealing ring and the lower O-shaped sealing ring, a retaining ring is arranged on the valve body on the upper side of the upper O-shaped. The outlet connecting pipe and the external system pipeline can be aligned and installed by rotating or vertically moving the adjusting sleeve, the installation is convenient, and the installation cost is low.
Description
Technical Field
The invention belongs to the field of valves, and particularly relates to a thread-mounted safety valve.
Background
The inlet end of the thread-mounted safety valve is mounted on a pressure container or a pressure pipeline by adopting threads, the medium is not allowed to be discharged to the outside on a plurality of medium containers or conveying pipelines, the discharged medium is recovered by a safety valve discharge port through a recovery pipeline, and the discharge port is generally connected with the recovery pipeline through a flange or threads. The main disadvantages are: when the installation is finished, the outlet side thread or the flange of the safety valve is possibly inconsistent with the position of the outlet side recovery pipeline in the horizontal or vertical direction, the position of the outlet recovery pipeline needs to be changed, the outlet recovery pipeline is aligned with the safety valve discharge port, the installation is troublesome, and the installation cost is increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the threaded safety valve which is convenient to install and low in installation cost.
The technical scheme of the invention comprises a valve body, a valve seat, a valve clack, a valve cover and a pressure setting device, wherein the valve seat is arranged at the inlet side of the valve body, the inlet end of the valve seat is provided with threads which are mutually connected with a medium pipeline, the sealing surface at the outlet end of the valve seat extends into a valve cavity, the lower end surface of the valve clack is provided with a valve clack sealing surface which is mutually matched with the sealing surface of the valve seat, the pressure setting device adopts a spring pressure adjusting device, a spring of the spring is arranged in the valve cavity between the back surface of; the method is characterized in that: the adjusting sleeve is mounted on the outer circular wall of the middle of the valve body and is in movable fit with the outer circular wall of the middle of the valve body, an upper O-shaped sealing ring is arranged between the inner wall of the adjusting sleeve and the outer circular wall of the upper side of the valve body discharge opening, a lower O-shaped sealing ring is arranged between the inner wall of the adjusting sleeve and the outer circular wall of the lower side of the valve body discharge opening, an outlet connecting pipe communicated with the valve body discharge opening is arranged on the side wall of the adjusting sleeve between the upper O-shaped sealing ring and the lower O-shaped sealing ring, a retainer ring is arranged on the valve body on the upper side of the upper O-shaped sealing ring and is matched with the external thread of the outer circular surface of.
Preferably, the valve cover is connected with the external thread on the external circular surface of the upper part of the valve body by adopting internal threads, the spring is arranged between the lower end surface of the valve cover and the back surface of the valve clack by the spring cap, the upper end of the spring is in abutting contact with the lower end surface of the spring cap, the lower end of the spring is in abutting contact with the back surface of the valve clack, and the external circular surface of the spring cap is in movable fit with.
Preferably, an upper spring seat is arranged between the upper end of the spring and the lower end face of the spring cap, a lower spring seat is arranged between the lower end of the spring and the back face of the valve clack, the upper end face of the upper spring seat is in mutual abutting contact with a conical hole in the lower end face of the spring cap through a conical surface, and the lower end face of the lower spring seat is in mutual abutting contact with a conical hole in the center of the back face of the valve clack through a.
Compared with the prior art, the invention has the beneficial effects that: the outlet connecting pipe is movably arranged on the valve body through the adjusting sleeve, the outlet connecting pipe and the external system pipeline can be aligned and arranged through rotating or vertically moving the adjusting sleeve, the direction and position structure of the external system pipeline does not need to be changed, the installation is convenient, and the installation cost is low.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The threaded safety valve as shown in fig. 1 comprises a valve body 2, a valve seat 1, a valve clack 5, a valve cover 10 and a pressure setting device, wherein the valve seat 1 is arranged at the inlet side of the valve body 2, the inlet end of the valve seat 1 is provided with threads which are mutually connected with a medium pipeline, the sealing surface at the outlet end of the valve seat extends into a valve cavity, namely, the inlet end of the valve seat 1 is arranged on the medium pipeline or a container by adopting the threads, the lower end surface of the valve clack 5 is provided with a valve clack sealing surface which is mutually matched with the sealing surface of the valve seat, the pressure setting device adopts a spring pressure adjusting device, a spring 8 of the pressure setting; the method is characterized in that: an adjusting sleeve 4 is arranged on the outer circular wall of the middle part of a valve body 2, the adjusting sleeve 4 is in movable fit with the outer circular wall of the middle part of the valve body 2, an upper O-shaped sealing ring 6 is arranged between the inner cavity wall of the adjusting sleeve 4 and the outer circular wall of the upper side of a discharge opening of the valve body 2, a lower O-shaped sealing ring 3 is arranged between the inner cavity wall of the adjusting sleeve 4 and the outer circular wall of the lower side of the discharge opening of the valve body 2, an outlet connecting pipe communicated with the discharge opening of the valve body 2 is arranged on the side wall of the adjusting sleeve 4 between the upper O-shaped sealing ring 6 and the lower O-shaped sealing ring 3, the outlet connecting pipe is connected with an external system pipeline by threads or flanges, a baffle ring 7 is arranged on the valve body 2 positioned on the upper side of the upper O-shaped sealing ring 6, the baffle ring 7 is mutually matched with the external threads of the outer circular surface of the upper, the adjusting sleeve 4 can be rotated horizontally and displaced vertically between the radial shoulder and the securing ring 7.
The valve cover 10 is connected with the external thread of the outer circular surface of the upper part of the valve body 2 by adopting an internal thread, the spring 8 is arranged between the lower end surface of the valve cover 10 and the back surface of the valve clack 5 through the spring cap 9, the upper end of the spring 8 is in top contact with the lower end surface of the spring cap 9, the lower end of the spring 8 is in top contact with the back surface of the valve clack 5, the outer circular surface of the spring cap 9 is in movable fit with the inner cavity wall of the valve body 2, the axial position of the valve cover 10 on the valve.
An upper spring seat is arranged between the upper end of the spring 8 and the lower end face of the spring cap 9, a lower spring seat is arranged between the lower end of the spring 8 and the back face of the valve clack 5, the upper end face of the upper spring seat is in mutual abutting contact with a conical hole in the lower end face of the spring cap 9 through a conical surface, and the lower end face of the lower spring seat is in mutual abutting contact with a conical hole in the center of the back face of the valve clack 5 through.
Claims (3)
1. A threaded safety valve comprises a valve body (2), a valve seat (1), a valve clack (5), a valve cover (10) and a pressure setting device, wherein the inlet end of the valve seat (1) is provided with threads which are connected with a medium pipeline, the lower end surface of the valve clack (5) is provided with a valve clack sealing surface which is matched with the valve seat sealing surface, the pressure setting device adopts a spring pressure adjusting device, a spring (8) of the pressure setting device is arranged in a valve cavity between the back surface of the valve clack (5) and the valve cover (10), and the side wall of the valve body (2) is provided with a discharge; the method is characterized in that: an adjusting sleeve (4) is installed on the outer circular wall of the middle of a valve body (2), the adjusting sleeve (4) is in movable fit with the outer circular wall of the middle of the valve body (2), an O-shaped sealing ring (6) is arranged between the inner cavity wall of the adjusting sleeve (4) and the outer circular wall of the upper side of a discharge opening of the valve body (2), a lower O-shaped sealing ring (3) is arranged between the inner cavity wall of the adjusting sleeve (4) and the outer circular wall of the lower side of the discharge opening of the valve body (2), an outlet connecting pipe communicated with the discharge opening of the valve body (2) is arranged on the side wall of the adjusting sleeve (4) between the upper O-shaped sealing ring (6) and the lower O-shaped sealing ring (3), a baffle ring (7) is arranged on the valve body (2) on the upper side of the upper O-shaped sealing ring (6.
2. The threaded safety valve as claimed in claim 1, wherein the valve cover (10) is internally threaded and is interconnected with external threads on the outer circumferential surface of the upper portion of the valve body (2), the spring (8) is mounted between the lower end surface of the valve cover (10) and the back surface of the valve clack (5) through a spring cap (9), the upper end of the spring (8) is in abutting contact with the lower end surface of the spring cap (9), the lower end of the spring (8) is in abutting contact with the back surface of the valve clack (5), and the outer circumferential surface of the spring cap (9) is in movable fit with the inner cavity wall of the.
3. A threaded safety valve according to claim 2, characterized in that an upper spring seat is provided between the upper end of the spring (8) and the lower end face of the spring cap (9), a lower spring seat is provided between the lower end of the spring (8) and the back of the valve flap (5), the upper end face of the upper spring seat is in contact with the conical hole of the lower end face of the spring cap (9) by a conical surface, and the lower end face of the lower spring seat is in contact with the conical hole of the center of the back of the valve flap (5) by a conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947059.4A CN110541954A (en) | 2019-10-08 | 2019-10-08 | Thread type safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947059.4A CN110541954A (en) | 2019-10-08 | 2019-10-08 | Thread type safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110541954A true CN110541954A (en) | 2019-12-06 |
Family
ID=68715259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910947059.4A Withdrawn CN110541954A (en) | 2019-10-08 | 2019-10-08 | Thread type safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541954A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606368A (en) * | 2021-05-26 | 2021-11-05 | 厦门宏发汽车电子有限公司 | Adjustable relief valve structure and oil tank isolating valve thereof |
| CN114294449A (en) * | 2021-11-26 | 2022-04-08 | 北京特种机械研究所 | Internal pressure relief type one-way valve |
| CN116951143A (en) * | 2023-09-20 | 2023-10-27 | 江苏广通船用阀门有限公司 | Screw thread type relief valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202972066U (en) * | 2012-11-21 | 2013-06-05 | 天正阀门有限公司 | Breathing type safety valve |
| CN204127411U (en) * | 2014-09-10 | 2015-01-28 | 天正阀门有限公司 | Differential pressure type safety valve |
| CN204164399U (en) * | 2014-09-22 | 2015-02-18 | 温州市圣雪卫浴有限公司 | A kind of rotary faucet |
| CN205606059U (en) * | 2016-05-16 | 2016-09-28 | 宁波宏武管业有限公司 | Three -way pipe that can finely tune |
| CN207005479U (en) * | 2017-08-03 | 2018-02-13 | 中铁建工集团有限公司 | A kind of modified PVC sleeve pipes |
-
2019
- 2019-10-08 CN CN201910947059.4A patent/CN110541954A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202972066U (en) * | 2012-11-21 | 2013-06-05 | 天正阀门有限公司 | Breathing type safety valve |
| CN204127411U (en) * | 2014-09-10 | 2015-01-28 | 天正阀门有限公司 | Differential pressure type safety valve |
| CN204164399U (en) * | 2014-09-22 | 2015-02-18 | 温州市圣雪卫浴有限公司 | A kind of rotary faucet |
| CN205606059U (en) * | 2016-05-16 | 2016-09-28 | 宁波宏武管业有限公司 | Three -way pipe that can finely tune |
| CN207005479U (en) * | 2017-08-03 | 2018-02-13 | 中铁建工集团有限公司 | A kind of modified PVC sleeve pipes |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606368A (en) * | 2021-05-26 | 2021-11-05 | 厦门宏发汽车电子有限公司 | Adjustable relief valve structure and oil tank isolating valve thereof |
| CN114294449A (en) * | 2021-11-26 | 2022-04-08 | 北京特种机械研究所 | Internal pressure relief type one-way valve |
| CN114294449B (en) * | 2021-11-26 | 2024-05-14 | 北京特种机械研究所 | Internal pressure relief type one-way valve |
| CN116951143A (en) * | 2023-09-20 | 2023-10-27 | 江苏广通船用阀门有限公司 | Screw thread type relief valve |
| CN116951143B (en) * | 2023-09-20 | 2024-02-02 | 江苏广通船用阀门有限公司 | Screw thread type relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191206 |