CN113833881A - Large-caliber high-pressure safety valve setting pressure adjusting structure - Google Patents
Large-caliber high-pressure safety valve setting pressure adjusting structure Download PDFInfo
- Publication number
- CN113833881A CN113833881A CN202110960747.1A CN202110960747A CN113833881A CN 113833881 A CN113833881 A CN 113833881A CN 202110960747 A CN202110960747 A CN 202110960747A CN 113833881 A CN113833881 A CN 113833881A
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- pressure
- safety valve
- caliber high
- bolts
- adjusting structure
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- 239000002699 waste material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004429 Calibre Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- 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
-
- 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
- F16K17/0486—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 mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a large-caliber high-pressure safety valve setting pressure adjusting structure, which comprises: the tool comprises a nut (1), a pressure plate (2), two bolts (3), a threaded sleeve (4), a tool seat (5), a valve cover (6) and a pressure rod (7); the tool base (5) is connected with the valve cover (6) through threads, and the two bolts (3) are respectively fixed on the tool base (5) and positioned on two sides of the pressure rod (7); the two bolts (3) are provided with the pressing plate (2), and the pressing plate (2) is in threaded connection and fixation with the two bolts through nuts; the threaded sleeve (4) is sleeved outside the pressure lever (7), and the valve cover (6) is arranged outside the threaded sleeve (4). Through the setting pressure adjusting structure, the setting pressure of the large-caliber high-pressure safety valve can be adjusted conveniently and conveniently in a labor-saving manner.
Description
Technical Field
The invention belongs to the technical field of pressure relief of overpressure protection of pressure-bearing equipment, and particularly relates to a setting pressure adjusting structure of a large-caliber high-pressure safety valve.
Background
The safety valve is an automatic valve, and the medium with rated flow is discharged by using the pressure of the medium without the help of external force, so that the overpressure protection function of the system is realized. The safety valve is widely used in various fields of national economy, provides effective overpressure safety protection for pressure-bearing devices and equipment such as boilers, pressure vessels or pressure pipelines and the like, avoids system or equipment damage caused by overpressure, and ensures normal operation of the devices and the equipment and safety of operators.
The schematic diagram of a common safety valve setting pressure adjusting structure is shown in the attached drawing 1, and the safety valve setting pressure adjustment is realized by rotating an adjusting screw 1 by a wrench to move downwards and compressing a spring 3 by an upper spring seat 2. However, as the application of the safety valve is more and more extensive, the application conditions are more and more complex and demanding, which also brings new problems. Under the working condition of large caliber and high pressure, the problems of difficult setting, time waste and labor waste can be caused by adopting the traditional structure for adjusting the setting pressure of the safety valve due to the huge required spring force. At the moment, the spanner needs to be lengthened when the setting pressure is adjusted, multiple persons operate simultaneously, manpower is wasted, and debugging efficiency is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a big-calibre high pressure relief valve sets pressure adjustment structure to solve among the prior art big-calibre high pressure operating mode under the relief valve set difficult, waste time and energy the problem.
In order to solve the technical problem, the invention discloses a large-caliber high-pressure safety valve setting pressure adjusting structure, which comprises: the tool comprises a nut, a pressing plate, two bolts, a threaded sleeve, a tool seat, a valve cover and a pressing rod;
the tool seat is connected with the valve cover through threads, and the two bolts are respectively fixed on the tool seat and positioned on two sides of the pressure rod;
the pressing plates are arranged on the two bolts and are fixedly connected with the two bolts in a threaded manner through the nuts;
the threaded sleeve is sleeved outside the pressure rod, and the valve cover is arranged outside the threaded sleeve.
In an optional embodiment, the number of the nuts is two; one of the nuts is screw-coupled with one of the bolts.
In an alternative embodiment, the pressure plate is in contact with the pressure rod, and the pressure plate drives the pressure rod to move downwards by sequentially tightening two nuts at two ends of the pressure plate, so that the setting pressure of the large-caliber high-pressure safety valve is increased.
In an alternative embodiment, after the adjustment of the setting pressure is finished, the screw sleeve is adjusted to enable the end face of the screw sleeve to be in close contact with the middle boss part of the pressure rod so as to limit the upward movement of the pressure rod.
In an optional embodiment, two nuts at two ends of the pressure plate are loosened, and the pressure plate and the tool seat are removed to finish the constant pressure operation of the large-caliber high-pressure safety valve.
The invention has the following advantages: the large-caliber high-pressure safety valve setting pressure adjusting structure disclosed by the embodiment of the invention adopts a lever structure, and the traditional safety valve adjusting screw is designed in a split manner, so that the force application required by an operator during pressure setting debugging can be reduced, and the problems of difficulty in setting, time waste and labor waste of the safety valve under the large-caliber high-pressure working condition can be solved. Moreover, the adjustment is convenient and labor-saving, and the valve setting pressure adjustment can be completed by one person.
Drawings
FIG. 1 is a schematic diagram of a conventional safety valve setting pressure adjusting structure;
fig. 2A-2C are schematic diagrams of a setting pressure adjustment structure of a large-caliber high-pressure safety valve according to an embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and with reference to the attached drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a setting pressure adjusting structure of a large-caliber high-pressure safety valve aiming at the problems of the existing joint, which has the following characteristics:
a first feature: the traditional adjusting screw of the safety valve is divided into two parts, namely a threaded sleeve 4 and a pressure rod 7, which are in clearance fit and can axially move relatively, and the compression or relaxation control of the spring can be flexibly realized.
The second characteristic: adopt lever structure, clamp plate 2 plays the effect of a lever when screwing up clamp plate 2 both ends nut 1 in proper order, can reduce nut 1 and need apply down for clamp plate 2 power, and clamp plate 2 drives depression bar 7 downstream this moment, accomplishes the compression to the spring, finally reduces operating personnel this moment and needs the application of force size.
The third characteristic: the tool seat 5 is connected with the valve cover 6 through threads, and the tool seat plays a role of fixing the bolt 3, so that the pressing plate 2 and the nut 1 are supported.
A fourth feature: the operation is simple, the manpower is saved, and the setting pressure adjustment of the large-caliber high-pressure safety valve can be completed by one person.
The setting pressure adjusting structure of the large-caliber high-pressure safety valve disclosed by the invention is explained with reference to fig. 2A-2C.
FIG. 2A is a schematic view of a set pressure adjustment structure of a large-caliber high-pressure safety valve before the set pressure adjustment;
FIG. 2B is a schematic view of a setting pressure adjusting structure of a large-caliber high-pressure safety valve during a setting pressure adjusting process;
fig. 2B is a schematic view of the setting pressure adjustment structure of the large-caliber high-pressure safety valve after the setting pressure adjustment is completed.
As shown in the schematic diagram of the setting pressure adjusting structure of the large-caliber high-pressure safety valve in fig. 2A, the setting pressure adjusting structure of the large-caliber high-pressure safety valve includes: the device comprises a nut 1, a pressure plate 2, two bolts 3, a threaded sleeve 4, a tool seat 5, a valve cover 6 and a pressure lever 7; the tool seat 5 is connected with the valve cover 6 through threads, and the two bolts 3 are respectively fixed on the tool seat 5 and positioned on two sides of the pressure rod 7; the two bolts 3 are provided with the pressing plate 2, and the pressing plate 2 is fixedly connected with the two bolts through nuts in a spiral way; the threaded sleeve 4 is sleeved outside the pressure rod 7, and the valve cover 6 is arranged outside the threaded sleeve 4.
In an alternative embodiment, the number of nuts 1 is two; a nut 1 is screwed with a bolt 3. As shown in FIG. 2, two nuts 1 are provided for fixing the pressure plate 2, which is more symmetrical and stable.
In an alternative embodiment, the pressure plate 2 is in contact with the pressure rod 7, and the two nuts 1 at the two ends of the pressure plate 2 are sequentially screwed, so that the pressure plate 2 drives the pressure rod 7 to move downwards, the setting pressure of the large-caliber high-pressure safety valve is increased, the compression of the spring is completed, and finally the setting pressure of the large-caliber high-pressure safety valve can be increased.
As shown in fig. 2B, in the adjusting process of the setting pressure, the pressure plate 2 acts as a lever, so that the acting force of the nut 1 which needs to be applied to the pressure plate 2 downwards can be reduced. As shown in fig. 2C, after the adjustment of the set pressure is finished, the threaded sleeve 4 is manually adjusted to make the end surface thereof closely contact with the middle boss part of the pressure lever 7, so as to limit the upward movement of the pressure lever 7. And finally, loosening the nuts 1 at the two ends of the pressing plate 2, and taking down the pressing plate 2 and the tool seat 5 to finish the constant-pressure operation of the large-caliber high-pressure safety valve.
The large-caliber high-pressure safety valve setting pressure adjusting structure disclosed by the embodiment of the invention adopts a lever structure, and the traditional safety valve adjusting screw is designed in a split manner, so that the force application required by an operator during pressure setting debugging can be reduced, and the problems of difficulty in setting, time waste and labor waste of the safety valve under the large-caliber high-pressure working condition can be solved. Moreover, the adjustment is convenient and labor-saving, and the valve setting pressure adjustment can be completed by one person.
It should be noted that the above description is only a preferred embodiment of the present invention, and it should be understood that various changes and modifications can be made by those skilled in the art without departing from the technical idea of the present invention, and these changes and modifications are included in the protection scope of the present invention.
The above description is only for the best mode of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Those skilled in the art will appreciate that the details of the invention not described in detail in this specification are well within the skill of those in the art.
Claims (5)
1. A large-caliber high-pressure safety valve setting pressure adjusting structure is characterized by comprising: the tool comprises a nut (1), a pressure plate (2), two bolts (3), a threaded sleeve (4), a tool seat (5), a valve cover (6) and a pressure rod (7);
the tool seat (5) is in threaded connection with the valve cover (6), and the two bolts (3) are respectively fixed on the tool seat (5) and positioned on two sides of the pressure rod (7);
the pressing plates (2) are mounted on the two bolts (3), and the pressing plates (2) are fixedly connected with the bolts (3) in a threaded manner through the nuts;
the threaded sleeve (4) is sleeved outside the pressure lever (7), and the valve cover (6) is arranged outside the threaded sleeve (4).
2. The setting pressure adjusting structure of the large-caliber high-pressure safety valve according to claim 1, characterized in that:
the number of the nuts (1) is two;
one of the nuts (1) is screwed to one of the bolts (3).
3. The setting pressure adjusting structure of the large-caliber high-pressure safety valve according to claim 1, characterized in that:
the pressing plate (2) is in contact with the pressing rod (7), and the pressing plate (2) drives the pressing rod (7) to move downwards by screwing the two nuts (1) at the two ends of the pressing plate (2) in sequence, so that the setting pressure of the large-caliber high-pressure safety valve is increased.
4. The setting pressure adjusting structure of the large-caliber high-pressure safety valve according to claim 1, characterized in that:
and after the adjustment of the setting pressure is finished, adjusting the threaded sleeve (4) to enable the end surface of the threaded sleeve to be in close contact with the middle boss part of the pressure lever (7) so as to limit the upward movement of the pressure lever (7).
5. The setting pressure adjusting structure of the large-caliber high-pressure safety valve according to claim 4, characterized in that:
and loosening the two nuts (1) at the two ends of the pressing plate (2), and taking down the pressing plate (2) and the tool seat (5) to finish the constant pressure operation of the large-caliber high-pressure safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960747.1A CN113833881A (en) | 2021-08-20 | 2021-08-20 | Large-caliber high-pressure safety valve setting pressure adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960747.1A CN113833881A (en) | 2021-08-20 | 2021-08-20 | Large-caliber high-pressure safety valve setting pressure adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113833881A true CN113833881A (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110960747.1A Pending CN113833881A (en) | 2021-08-20 | 2021-08-20 | Large-caliber high-pressure safety valve setting pressure adjusting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN113833881A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029474A (en) * | 2004-07-16 | 2006-02-02 | Mihana Seisakusho:Kk | Safety valve setting pressure adjusting mechanism and safety valve having the adjusting mechanism |
| CN103203717A (en) * | 2012-12-31 | 2013-07-17 | 苏州维赛克阀门检测技术有限公司 | High-pressure safety valve disassembling tool |
| CN205806595U (en) * | 2016-06-24 | 2016-12-14 | 山东重能动力有限公司 | Scavenging air box opening pressure of safety valve adjusts instrument |
| CN205956478U (en) * | 2015-12-03 | 2017-02-15 | 哈电集团哈尔滨电站阀门有限公司 | Spring safety valve set pressure debugs device |
| CN206501057U (en) * | 2017-02-23 | 2017-09-19 | 吴江市东吴机械有限责任公司 | One kind closing online regulator of bonnet safety valve |
| CN209579428U (en) * | 2019-01-16 | 2019-11-05 | 广西电网有限责任公司梧州供电局 | A kind of energy-stored spring extracting tool |
| CN210372181U (en) * | 2019-09-04 | 2020-04-21 | 徐建 | Safety valve pressure regulating device |
| CN212351864U (en) * | 2020-07-31 | 2021-01-15 | 广西玉柴机器股份有限公司 | Extracting tool of machining center main shaft blind rivet |
-
2021
- 2021-08-20 CN CN202110960747.1A patent/CN113833881A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029474A (en) * | 2004-07-16 | 2006-02-02 | Mihana Seisakusho:Kk | Safety valve setting pressure adjusting mechanism and safety valve having the adjusting mechanism |
| CN103203717A (en) * | 2012-12-31 | 2013-07-17 | 苏州维赛克阀门检测技术有限公司 | High-pressure safety valve disassembling tool |
| CN205956478U (en) * | 2015-12-03 | 2017-02-15 | 哈电集团哈尔滨电站阀门有限公司 | Spring safety valve set pressure debugs device |
| CN205806595U (en) * | 2016-06-24 | 2016-12-14 | 山东重能动力有限公司 | Scavenging air box opening pressure of safety valve adjusts instrument |
| CN206501057U (en) * | 2017-02-23 | 2017-09-19 | 吴江市东吴机械有限责任公司 | One kind closing online regulator of bonnet safety valve |
| CN209579428U (en) * | 2019-01-16 | 2019-11-05 | 广西电网有限责任公司梧州供电局 | A kind of energy-stored spring extracting tool |
| CN210372181U (en) * | 2019-09-04 | 2020-04-21 | 徐建 | Safety valve pressure regulating device |
| CN212351864U (en) * | 2020-07-31 | 2021-01-15 | 广西玉柴机器股份有限公司 | Extracting tool of machining center main shaft blind rivet |
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