CN110375098B - Adjustable integrated safety valve type pressure reducer - Google Patents
Adjustable integrated safety valve type pressure reducer Download PDFInfo
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- CN110375098B CN110375098B CN201910548744.XA CN201910548744A CN110375098B CN 110375098 B CN110375098 B CN 110375098B CN 201910548744 A CN201910548744 A CN 201910548744A CN 110375098 B CN110375098 B CN 110375098B
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- interface
- pressure
- sliding sleeve
- valve
- reducer
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- 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
- F16K17/044—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 more than one spring
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- 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
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses an adjustable integrated safety valve type pressure reducer, which comprises: the shell comprises a first interface, a second interface and a third interface of a three-way structure, wherein the first interface is a high-pressure inlet; the second interface is a low-pressure outlet; the adjusting assembly comprises a sliding sleeve, a valve and an adjusting rod, the sliding sleeve is arranged at the joint of the three-way structure in a sliding manner, and a gap for communicating the first interface and the second interface and a plug for plugging the gap are arranged on the sliding sleeve; the valve is arranged in a central hole of the sliding sleeve, and the central hole of the sliding sleeve is communicated with the first interface and the third interface; the adjusting rod is screwed on the third interface, acts on the sliding sleeve through the main spring and acts on the valve through the auxiliary spring. The pressure reducer has a compact structure, and when the adjusting rod is screwed, the outlet pressure of the pressure reducer and the safe release pressure of the valve are increased or reduced simultaneously, so that the outlet pressure of the pressure reducer is always smaller than the safe release pressure of the valve; the pressure reducer does not need to be set with the highest outlet pressure, and the application range is wide.
Description
Technical Field
The invention relates to the technical field of pressure reducing valves, in particular to an adjustable integrated safety valve type pressure reducer.
Background
Conventional pressure reducing valves include pressure-adjustable pressure reducing valves and pressure-setting-fixed pressure reducing valves, as well as pressure reducing valves incorporating relief valves and pressure reducing valves without relief valves; meanwhile, the pressure-reducing valve with adjustable pressure and integrated safety valve is also large.
However, the pressure of the pressure relief valve of the prior pressure relief valve is adjustable and integrated with a safety valve, and the relief pressure of the safety valve is fixed and unchangeable; the relief pressure of a safety valve in the pressure reducing valve is higher than the pressure of the pressure reducing valve, and the relief pressure of the safety valve is a fixed value; therefore, the outlet pressure of the pressure reducing valve needs to be set to the highest outlet pressure, which is less than the relief valve relief pressure; the pressure reducing valve limits the outlet pressure change range of the pressure reducing valve and limits the use range of the pressure reducing valve.
Disclosure of Invention
In view of the above-identified deficiencies, the present invention provides an adjustable integrated safety valve type pressure reducer.
The invention discloses an adjustable integrated safety valve type pressure reducer, which comprises:
the shell comprises a first interface, a second interface and a third interface of a three-way structure, wherein the first interface is a high-pressure inlet, and the second interface is a low-pressure outlet;
the adjusting assembly comprises a sliding sleeve, a valve and an adjusting rod, the sliding sleeve is arranged at the joint of the three-way structure in a sliding manner, and the sliding sleeve is provided with a gap for communicating the first interface and the second interface and a plug for plugging the gap; the valve is arranged in the stepped hole of the sliding sleeve, and the stepped hole of the sliding sleeve is communicated with the second interface and the third interface; the adjusting rod is screwed on the third interface, acts on the sliding sleeve through a main spring and acts on the valve through an auxiliary spring; when the adjusting rod is screwed, the outlet pressure of the second interface and the safety release pressure of the valve are increased or decreased simultaneously.
As a further improvement of the invention, the first interface, the second interface and the third interface are all stepped holes with large outside and small inside, the small holes of the first interface, the second interface and the third interface are communicated, and the inner diameters of the small holes of the second interface and the third interface are consistent and the axes are coincident.
As a further improvement of the present invention, the sliding sleeve is coaxially inserted into the small holes of the second port and the third port, the gap is opened on the outer circumference of the sliding sleeve, and the plug is arranged at the second port end of the sliding sleeve and used for plugging the step portion of the second port;
when the outlet pressure of the second interface is greater than the spring force of the main spring and the auxiliary spring, the plug blocks a communication gap between the first interface and the second interface;
when the outlet pressure of the second interface is smaller than the spring force of the main spring and the auxiliary spring, the first interface is communicated with the second interface through the gap.
As a further improvement of the invention, a sealing ring for plugging the first interface and the third interface is arranged on the sliding sleeve.
As a further improvement of the invention, the device also comprises a piston;
the piston is arranged on the step part of the third interface, and the lower end of the main spring is abutted in the annular groove of the piston. .
As a further improvement of the invention, the device also comprises an adjusting handle;
the adjusting handle is arranged on the adjusting rod.
As a further improvement of the present invention, the adjusting lever is provided with a large thrust bearing at a contact position with the main spring, and the adjusting lever is provided with a small thrust bearing at a contact position with the sub spring.
As a further development of the invention, the safety release pressure of the flap is 1.5 times the outlet pressure of the second connection.
Compared with the prior art, the invention has the beneficial effects that:
the pressure reducer has a compact structure, and when the adjusting rod is screwed, the outlet pressure of the pressure reducer and the safe release pressure of the valve are increased or reduced simultaneously, so that the outlet pressure of the pressure reducer is always smaller than the safe release pressure of the valve; the pressure reducer does not need to be set with the highest outlet pressure, and the application range is wide.
Drawings
Fig. 1 is a schematic diagram of an adjustable integrated safety valve reducer according to an embodiment of the present invention.
In the figure:
1. a housing; 2. a sliding sleeve; 3. a shutter; 4. a main spring; 5. a secondary spring; 6. a piston; 7. a high thrust bearing; 8. a small thrust bearing; 9. adjusting a rod; 10. an adjusting handle;
A1an outlet, an outletArea of pressure action; a. the2The relief valve releases the pressure action area; f1\K1\H1Main spring parameters; f2\K2\H2And secondary spring parameters; p, outlet pressure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides an adjustable integrated safety valve type pressure reducer, comprising: the shell comprises a first interface, a second interface and a third interface of a three-way structure, wherein the first interface is a high-pressure inlet; the second interface is a low-pressure outlet; the adjusting assembly comprises a sliding sleeve, a valve and an adjusting rod, the sliding sleeve is arranged at the joint of the three-way structure in a sliding manner, and a gap for communicating the first interface and the second interface and a plug for plugging the gap are arranged on the sliding sleeve; the valve is arranged in a central hole of the sliding sleeve, and the central hole of the sliding sleeve is communicated with the first interface and the third interface; the adjusting rod is screwed on the third interface, acts on the sliding sleeve through the main spring and acts on the valve through the auxiliary spring. The pressure reducer has a compact structure, and when the adjusting rod is screwed, the outlet pressure of the pressure reducer and the safe release pressure of the valve are increased or reduced simultaneously, so that the outlet pressure of the pressure reducer is always smaller than the safe release pressure of the valve; the pressure reducer does not need to be set with the highest outlet pressure, and the application range is wide.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the present invention provides an adjustable integrated safety valve type pressure reducer comprising: the device comprises a shell 1, a sliding sleeve 2, a valve 3, a main spring 4, an auxiliary spring 5, a piston 6, a large thrust bearing 7, a small thrust bearing 8, an adjusting rod 9 and an adjusting handle 10; wherein:
the shell 1 is designed into a three-way structure type, namely comprises a first interface, a second interface and a third interface which are communicated with each other, wherein the first interface is a high-pressure Inlet (IN), the second interface is a low-pressure Outlet (OUT), and the third interface is an adjusting port. Further, the shell 1 of the invention is a high-pressure shell, the first interface is arranged between the second interface and the third interface, and the first interface, the second interface and the third interface are all stepped holes which are large outside and small inside and are communicated with each other; the second interface and the third interface are coaxially arranged, the inner diameters of the small holes of the second interface and the third interface are consistent, and the axis of the first interface is perpendicular to the second interface or the third interface.
The sliding sleeve 2 is slidably arranged at the joint of the three-way structure, namely, the sliding sleeve 2 is coaxially and slidably arranged in the small holes of the second interface and the third interface, and the outer wall of the sliding sleeve 2 is attached to or in clearance fit with the inner wall of the small hole; a sealing ring is arranged on the outer wall of the sliding sleeve 2 between the first port and the third port and used for sealing the communication between the first port and the third port; the outer wall of the sliding sleeve 2 between the first interface and the second interface is provided with a gap for communicating the first interface and the second interface, and the lower end (the end arranged in the second interface) of the sliding sleeve 2 is provided with a plug for the step part of the second interface. When the plug is used, when the outlet pressure of the second interface is greater than the spring force of the main spring and the auxiliary spring, the plug blocks a communication gap between the first interface and the second interface; when the outlet pressure of the second interface is smaller than the spring force of the main spring and the auxiliary spring, the first interface is communicated with the second interface through a gap.
The axial position of the sliding sleeve 2 is provided with a coaxial stepped hole which is communicated with a second interface and a third interface, wherein the stepped hole is communicated with the second interface and is a small hole, and the stepped hole is communicated with the third interface and is a large hole; the valve 3 (which is used as a safety valve of a pressure reducer) is arranged in the big hole of the stepped hole and can block the small hole of the stepped hole of the sliding sleeve 2 after moving to the lowest end; when the pressure reaches the release pressure, the valve 3 is opened, and the autonomous safety control is realized.
The piston 6 of the invention is arranged in the big hole of the third interface and is sleeved on the sliding sleeve 2, and the piston 6 is fixedly connected with the sliding sleeve 2 and is in small clearance fit with the shell 1. The adjusting rod 9 of the invention is screwed on the internal thread of the large hole of the third interface; the adjusting rod 9 acts in the annular groove of the piston 6 through the main spring 4, and the adjusting rod 9 acts on the shutter 3 through the secondary spring 5. Furthermore, the adjusting rod 9 is provided with the large thrust bearing 7 at the contact part with the main spring 4, the small thrust bearing 8 is arranged at the contact part of the adjusting rod 9 and the auxiliary spring 5, and the large thrust bearing 7 and the small thrust bearing 8 can reduce the friction force of the adjusting rod 9 with the grinding plane of the main spring 4 and the auxiliary spring 5, so that the adjustment is convenient, and the main spring 4 and the auxiliary spring 5 are not twisted to influence the adjustment precision. Furthermore, the adjusting handle 10 is arranged on the adjusting rod 9, so that manual pressure adjustment of the adjusting rod 9 is facilitated. The design of the structure ensures that the outlet pressure of the second interface and the safety release pressure of the valve 3 (safety valve) are increased or reduced simultaneously when the adjusting rod 9 is screwed.
The invention can select proper main spring and auxiliary spring according to the parameters of the main spring and the auxiliary spring, and ensure that the safety release pressure of the valve is about 1.5 times of the outlet pressure of the second interface.
The invention has the advantages of compact structure, adjustable pressure of the pressure reducer, adjustable safety release pressure, improved performance of the pressure reducer and improved safety.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An adjustable integrated safety valve type pressure reducer, comprising:
the shell comprises a first interface, a second interface and a third interface of a three-way structure, wherein the first interface is a high-pressure inlet, and the second interface is a low-pressure outlet;
the adjusting assembly comprises a sliding sleeve, a valve and an adjusting rod, the sliding sleeve is arranged at the joint of the three-way structure in a sliding manner, and the sliding sleeve is provided with a gap for communicating the first interface and the second interface and a plug for plugging the gap; the valve is arranged in the stepped hole of the sliding sleeve, and the stepped hole of the sliding sleeve is communicated with the second interface and the third interface; the adjusting rod is screwed on the third interface, acts on the sliding sleeve through a main spring and acts on the valve through an auxiliary spring; when the adjusting rod is screwed, the outlet pressure of the second interface and the safety release pressure of the valve are increased or decreased simultaneously;
the first interface, the second interface and the third interface are all stepped holes with large outside and small inside, small holes of the first interface, the second interface and the third interface are communicated, and the inner diameters of the small holes of the second interface and the third interface are consistent and the axes of the small holes are coincident;
the sliding sleeve is coaxially arranged in the small holes of the second interface and the third interface in a penetrating manner, the gap is formed in the outer circumference of the sliding sleeve, and the plug is arranged at the second interface end of the sliding sleeve and used for plugging the step part of the second interface;
when the outlet pressure of the second interface is greater than the spring force of the main spring and the auxiliary spring, the plug blocks a communication gap between the first interface and the second interface;
when the outlet pressure of the second interface is smaller than the spring force of the main spring and the auxiliary spring, the first interface is communicated with the second interface through the gap;
and the sliding sleeve is provided with a sealing ring for plugging the first interface and the third interface.
2. An adjustable integrated safety valve reducer as claimed in claim 1 further comprising a piston;
the piston is arranged on the step part of the third interface, and the lower end of the main spring is abutted in the annular groove of the piston.
3. An adjustable integrated safety valve reducer as claimed in claim 1 further comprising an adjustment handle;
the adjusting handle is arranged on the adjusting rod.
4. An adjustable integrated safety valve reducer as claimed in claim 1 wherein the adjustment stem is provided with a high thrust bearing at the contact with the main spring and a low thrust bearing at the contact with the secondary spring.
5. An adjustable integrated safety valve reducer as claimed in claim 1 wherein the safety relief pressure of the valve is 1.5 times the outlet pressure of the second port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548744.XA CN110375098B (en) | 2019-06-24 | 2019-06-24 | Adjustable integrated safety valve type pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548744.XA CN110375098B (en) | 2019-06-24 | 2019-06-24 | Adjustable integrated safety valve type pressure reducer |
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| Publication Number | Publication Date |
|---|---|
| CN110375098A CN110375098A (en) | 2019-10-25 |
| CN110375098B true CN110375098B (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910548744.XA Active CN110375098B (en) | 2019-06-24 | 2019-06-24 | Adjustable integrated safety valve type pressure reducer |
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| CN (1) | CN110375098B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110812537A (en) * | 2019-11-15 | 2020-02-21 | 山东大学齐鲁医院 | Gastrointestinal pressure reducer with adjustable pressure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295093Y (en) * | 1996-04-25 | 1998-10-21 | 朴龙奎 | Hydraulic pneumatic controlled booster control valve |
| CN103032612A (en) * | 2012-12-12 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | Dual-opening-pressure dual-displacement safety valve |
| CN206190993U (en) * | 2016-10-11 | 2017-05-24 | 沈阳航天新光集团有限公司 | Off -load formula pressure reducer |
| CN206368986U (en) * | 2016-12-21 | 2017-08-01 | 张军 | A kind of differential type safety valve |
| EP2407694A3 (en) * | 2010-07-12 | 2017-12-13 | Liebherr-Machines Bulle SA | Valve for pressure limitation and device for same |
| CN208169619U (en) * | 2018-05-16 | 2018-11-30 | 孙宝民 | A kind of central gathering station spring loaded safety valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040007269A1 (en) * | 2002-07-12 | 2004-01-15 | Larsen Todd W. | Inline pressure reducing regulator |
| CN201236991Y (en) * | 2008-07-16 | 2009-05-13 | 宁波星箭航天机械厂 | High-pressure reducing valve |
| CN102889423B (en) * | 2012-09-24 | 2014-08-20 | 上海空间推进研究所 | Small pressure reducing valve and pressure reducing device in high-pressure high-flow fluid system |
-
2019
- 2019-06-24 CN CN201910548744.XA patent/CN110375098B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295093Y (en) * | 1996-04-25 | 1998-10-21 | 朴龙奎 | Hydraulic pneumatic controlled booster control valve |
| EP2407694A3 (en) * | 2010-07-12 | 2017-12-13 | Liebherr-Machines Bulle SA | Valve for pressure limitation and device for same |
| CN103032612A (en) * | 2012-12-12 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | Dual-opening-pressure dual-displacement safety valve |
| CN206190993U (en) * | 2016-10-11 | 2017-05-24 | 沈阳航天新光集团有限公司 | Off -load formula pressure reducer |
| CN206368986U (en) * | 2016-12-21 | 2017-08-01 | 张军 | A kind of differential type safety valve |
| CN208169619U (en) * | 2018-05-16 | 2018-11-30 | 孙宝民 | A kind of central gathering station spring loaded safety valve |
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| CN110375098A (en) | 2019-10-25 |
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