CN109944967A - A kind of double stopper type standard-sized sheet safety valve - Google Patents
A kind of double stopper type standard-sized sheet safety valve Download PDFInfo
- Publication number
- CN109944967A CN109944967A CN201910201720.7A CN201910201720A CN109944967A CN 109944967 A CN109944967 A CN 109944967A CN 201910201720 A CN201910201720 A CN 201910201720A CN 109944967 A CN109944967 A CN 109944967A
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure release
- silica gel
- section
- sized sheet
- 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.)
- Granted
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000000741 silica gel Substances 0.000 claims abstract description 62
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 62
- 238000000576 coating method Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 3
- 230000003578 releasing effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Abstract
The invention discloses a kind of double stopper type standard-sized sheet safety valves, are related to safety valve technical field.It includes external thread sleeve, standard-sized sheet pressure relief mechanism and rebound closing means；Rotation is socketed with two-chamber mouthpiece in external thread sleeve；It is respectively cooperating in two-chamber mouthpiece and is communicated with the first branch pipe and the second branch pipe；The standard-sized sheet pressure relief mechanism includes pressure release cylinder；The first silica gel plug is slidably connected in pressure release cylinder；The first push rod is fixed on first silica gel plug；Pressure release cylinder includes the positioning section at rear portion and the pressure release section of front；The first described branch pipe one end is connected to two-chamber mouthpiece, and the other end is connected to positioning section rear end.The beneficial effects of the present invention are: it can be when container inner pressure be more than specified value, realization is all turned on rapidly, reaches quick pressure releasing effect, and is influenced by hot environment small, and failure rate is low.
Description
Technical field
The present invention relates to safety valve technical fields.
Background technique
Safety valve is that opening and closing element is in normally off under by external force, is surpassed when the pressure medium in equipment or pipeline increases
When crossing specified value, by outside system discharge medium come to prevent pressure medium in pipeline or equipment be more than the particular usage valve of specified value
Door, wherein what is be most widely used is spring loaded safety valve.
The principle of spring loaded safety valve is when pressure increases in equipment, and pressure acts on flap, then passes through flap for bullet
Spring compression, makes valve opening, and medium is discharged, and achievees the effect that balance pressure, however since the decrement of spring is according to load
Size and change, therefore the unlatching amplitude of this valve can change according to pressure, cannot achieve rapid unlatching.In addition,
Spring can reduce in long-term down spring affected by the high temperature, therefore it is not suitable for the higher environment of temperature.Furthermore due to spring
It is provided with adjusting nut etc. on formula safety valve and is exposed to extraneous structure, therefore is easy to happen failure.
Summary of the invention
The technical problems to be solved by the invention are to provide a kind of double stopper type standard-sized sheet for above-mentioned technical deficiency
Safety valve, can be when container inner pressure be more than specified value, and realization is all turned on rapidly, reaches quick pressure releasing effect, and
Influenced by hot environment small, failure rate is low.
The technical solution adopted by the present invention is that: a kind of double stopper type standard-sized sheet safety valve is provided, including external thread sleeve, standard-sized sheet are let out
Press mechanism and rebound closing means；Rotation is socketed with two-chamber mouthpiece in external thread sleeve；The company of being respectively cooperating in two-chamber mouthpiece
It is connected with the first branch pipe and the second branch pipe；
The standard-sized sheet pressure relief mechanism includes pressure release cylinder；The first silica gel plug is slidably connected in pressure release cylinder；It is solid on first silica gel plug
Surely there is the first push rod；Pressure release cylinder includes the positioning section at rear portion and the pressure release section of front；The first described branch pipe one end connects with two-chamber
Mouth pipe connection, the other end are connected to positioning section rear end；Pressure release section rear end outer wall is along the circumferential direction uniformly provided with pressure relief opening；First pushes away
Bar is slidingly sealed across pressure release section front end；
The rebound closing means include the mounting cylinder being connect by connecting rod with pressure release cylinder；Mounting cylinder front end is provided with opening port；
The second silica gel plug is slidably connected in mounting cylinder；The second push rod is fixed on second silica gel plug；Mounting cylinder includes the sliding at rear portion
The retaining segment of section and front；Front is fixed with bar in retaining segment；Pressure spring is equipped in retaining segment；Pressure spring front end and bar
It is fixed；The second described branch pipe one end is connected to with two-chamber mouthpiece, and the other end is connected to sliding section rear end；First push rod and
The cooperation linkage of two push rods；Pressure release segment length is greater than sliding segment length；
The positioning section and retaining segment inner wall is coated with great friction coefficient coating；Pressure release section and sliding section inner wall are coated with smooth
Coating.
Advanced optimize the technical program, a kind of external thread sleeve inner end cooperation of double stopper type standard-sized sheet safety valve was fixed with
Filter disc.
Advanced optimize the technical program, a kind of retaining segment back interior wall of double stopper type standard-sized sheet safety valve is fixed with blocking
Block.
Advanced optimize the technical program, a kind of second push rod of double stopper type standard-sized sheet safety valve is slidingly sealed across sliding section
Rear end and connected structure is linearly docked with the first push rod.
Advanced optimize the technical program, a kind of second push rod of double stopper type standard-sized sheet safety valve passes through opening port and with first
Push rod, which is in U-shape, docks connected structure.
The beneficial effects of the present invention are:
1, rotation is socketed with two-chamber mouthpiece in external thread sleeve, is respectively cooperating in two-chamber mouthpiece and is communicated with the first branch pipe and the
Two branch pipes conveniently make the first branch pipe and the second branch pipe and reservoir, by the pressure at the first branch pipe and the second branch outlet
Power is able to reflect the actual pressure inside container；Positioning section and retaining segment inner wall are coated with great friction coefficient coating, can make
One silica gel plug, by frictional force, makes the second silica gel plug in retaining segment by frictional force in positioning section；Pressure release section and sliding section
Inner wall is coated with lubricious, and the frictional force that the first silica gel plug can be made to be subject in pressure release section is ignored, and the second silica gel is made
The frictional force being subject to when sliding section is filled in ignore.
2, the pressure at the first silica gel plug by gas at the first branch outlet is gone out by the second branch pipe at the second silica gel plug
The pressure of mouthful place's gas, the first push rod and the second push rod cooperate linkage, therefore the first silica gel plug and the second silica gel plug are by the
The sum of the pressure of gas at one branch pipe and the second branch pipe；The pressure that first silica gel plug is subject to is more than the maximum static friction at positioning section
When power, the first silica gel plug can be made to slide, pressure relief opening is connected all with the first branch pipe, realize quick pressure releasing；Second silica gel plug
It, can be by the second silica gel plug bullet when the sum of the maximum static friction force at pressure and retaining segment that place is subject to is less than the elastic force of pressure spring
It returns, is blocked pressure relief opening and the connected state of the first branch pipe, no longer pressure release.
3, pressure release segment length is greater than sliding segment length, when the first silica gel plug is pushed, guarantees that the second silica gel plug can be into
Enter to retaining segment, brakes the second silica gel plug successfully successfully by the frictional force of pressure spring elastic force and retaining segment；External thread sleeve
The cooperation of pipe inner end is fixed with filter, impurity can be avoided to enter the first branch pipe and second gas filtration in container
Pipe results in blockage problem；Retaining segment back interior wall is fixed with stopper, can stop the second silica gel plug, avoid due to pressure compared with
Energy when sliding the second silica gel plug is excessive, leads to the problem of damaging pressure spring by pressure.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is structural schematic diagram of the invention under pressure release state；
Fig. 3 is the another form of structural schematic diagram of the present invention.
In figure, 1, external thread sleeve；2, two-chamber mouthpiece；3, the first branch pipe；4, the second branch pipe；5, pressure release cylinder；6, first
Silica gel plug；7, the first push rod；8, positioning section；9, pressure release section；10, pressure relief opening；11, mounting cylinder；12, opening port；13, the second silica gel
Plug；14, the second push rod；15, section is slid；16, retaining segment；17, bar；18, pressure spring；19, filter；20, stopper；21, even
Bar.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figs. 1-2, a kind of double stopper type standard-sized sheet safety valve, including external thread sleeve 1, standard-sized sheet pressure relief mechanism and rebound envelope
Close mechanism；Rotation is socketed with two-chamber mouthpiece 2 in external thread sleeve 1；It is respectively cooperating in two-chamber mouthpiece 2 and is communicated with the first branch pipe
3 and second branch pipe 4；The standard-sized sheet pressure relief mechanism includes pressure release cylinder 5；The first silica gel plug 6 is slidably connected in pressure release cylinder 5；The
The first push rod 7 is fixed on one silica gel plug 6；Pressure release cylinder 5 includes the positioning section 8 at rear portion and the pressure release section 9 of front；Described first
3 one end of branch pipe is connected to two-chamber mouthpiece 2, and the other end is connected to 8 rear end of positioning section；9 rear end outer wall of pressure release section is along the circumferential direction
Uniformly it is provided with pressure relief opening 10；First push rod 7 is slidingly sealed across 9 front end of pressure release section.
The rebound closing means include the mounting cylinder 11 being connect by connecting rod 21 with pressure release cylinder 5；11 front end of mounting cylinder
It is provided with opening port 12；The second silica gel plug 13 is slidably connected in mounting cylinder 11；The second push rod 14 is fixed on second silica gel plug 13；
Mounting cylinder 11 includes the sliding section 15 at rear portion and the retaining segment 16 of front；Front is fixed with bar 17 in retaining segment 16；Retaining segment
Pressure spring 18 is equipped in 16；18 front end of pressure spring and bar 17 are fixed；Described 4 one end of the second branch pipe with two-chamber mouthpiece
2 connections, the other end are connected to sliding 15 rear end of section；First push rod 7 and the cooperation of the second push rod 14 link；9 length of pressure release section is greater than
Slide 15 length of section；The positioning section 8 and 16 inner wall of retaining segment is coated with great friction coefficient coating；Pressure release section 9 and sliding section
15 inner walls are coated with lubricious；The cooperation of 1 inner end of external thread sleeve is fixed with filter 19；16 back interior wall of retaining segment is fixed with
Stopper 20；Second push rod 14 is slidingly sealed across sliding 15 rear end of section and linearly docks connected structure with the first push rod 7.
As shown in figure 3, the second push rod 14, which passes through opening port 12 and is in U-shape with the first push rod 7, docks connected structure.
The coat of metal of frosted processing, lubricious optional polytetrafluoroethyl-ne can be selected in great friction coefficient coating in the present invention
It is lubricious by being coated at ene coatings, pressure release section 9 and sliding section 15 so that this at two inner wall coefficient of friction it is extremely low, to first
The frictional force that silica gel plug 6 and the second silica gel plug 13 generate is negligible.Two kinds of structure types can be used in the present invention, respectively such as
Shown in Fig. 1, Fig. 3, both structure type working principles are identical, can be selected according to demand in actual use.
As shown in Figure 1, the first branch pipe 3 and the second branch pipe 4 connect with needing to guarantee the container of pressure in working condition
Logical, under original state, the first silica gel plug 6 is at the positioning section 8 in pressure release cylinder 5, and the second silica gel plug 13 is now in mounting cylinder
At sliding section 15 in 11.In the present embodiment, since the first push rod 7 and the second push rod 14 link, work as container inner pressure
When more than specified value, the first branch pipe 3 at the first silica gel plug 6 pressure, the second branch pipe 4 is to the pressure two at the second silica gel plug 13
The sum of person is more than that 8 inner wall of positioning section (slides between section 15 and the second silica gel plug 13 maximum static friction force of first silica gel plug 6
Frictional force is negligible), the first silica gel plug 6 can slide into rapidly pressure release section 9, pressure relief opening 10 can all with the first branch pipe 3
Conducting, to realize the effect of quick pressure releasing.
During the pressure relief process, it is slided rapidly since the first silica gel plug 6 is pushed by pressure, according to effect of inertia, the second silicon
Rubber plug 13 can be pulled to retaining segment 16 and compress pressure spring 18, by retaining segment 16 to the frictional force and pressure spring 18 of the second silica gel plug 13
Elastic force, and the second silica gel plug 13 is braked, as shown in Fig. 2, with the progress of pressure release, under gas pressure in container is rapid
Drop, when dropping to specified value, the first branch pipe 3 at the first silica gel plug 6 pressure, the second branch pipe 4 to the second silica gel plug 13 at
Pressure, retaining segment 16 is to the maximum static friction force (friction between pressure release section 9 and the first silica gel plug 6 at the second silica gel plug 13
Power is negligible), the sum of three is no longer able to resist the elastic force of pressure spring 18, therefore the second silica gel plug 13 is bounce back into rapidly
Section 15 is slid, while according to effect of inertia, the first silica gel plug 6 can be pushed back positioning section 8, so that gas be prevented to continue to let out
Out, achieve the effect that pressure maintaining.
In order to guarantee during the pressure relief process, the second silica gel plug 13 can be shifted onto all at retaining segment 16 and be braked, rather than
Sliding section 15 is ejected by the elastic force of pressure spring 18, when container inner pressure being caused to drop to specified value, pressure spring 18 can not be by the first silicon
Rubber plug 6 back into the generation of the problem of at positioning section 8, other than the length of setting pressure release section 9 is greater than the length of sliding section 15, this
Sufficiently long sliding section 15 is also set up in technical solution, so that the second silica gel plug 13 can be saved bit by bit before sliding into contact pressure spring 18
Enough kinetic energy can enable the second silica gel plug 13 all to slide into retaining segment when the pressure in container is more than specified value
In 16, braking is realized.
After second silica gel plug 13 is all introduced into retaining segment 16, in the present invention at the elastic force and retaining segment 16 of setting pressure spring 18
Maximal friction be much larger than the specified value of the sum of pressure at the first branch pipe 3 and the second branch pipe 4, such as in the second silica gel plug
After 13 are all introduced into retaining segment 16, the elastic force of pressure spring 18 is 20N, and the maximal friction at retaining segment 16 is 15N, and first
The specified value of the sum of pressure at pipe 3 and the second branch pipe 4 is 5N, and setting can be at the first branch pipe 3 and the second branch pipe 4 in this way
When the sum of pressure reaches specified value, enables the elastic force of pressure spring 18 to enough impulse forces are provided at the second silica gel plug 13, make first
Silica gel plug 6, with sufficiently large kinetic energy, can be such that the first silica gel plug 6 smoothly slides into when sliding along pressure release section 9 to positioning section 8
It is positioned in positioning section 8, avoids the first silica gel plug 6 before sliding back into positioning section 8 just by the first branch pipe 3 and the second branch pipe 4
The problem of pressure provided is provided and hinders to stop, leading to not normal pressure maintaining.
In addition, the first silica gel plug 6 and 13 heat-resisting quantity of the second silica gel plug are strong in the present invention, and pressure spring 18 is not and in container
Gas contact, therefore heat-resisting quantity is more preferable compared with conventional springs formula safety valve, can still guarantee in container under hot environment
The stabilization of pressure；Furthermore there is no numerous exposed structures, device etc. in the present invention, therefore failure rate is low；With conventional solenoid valve phase
Than without the participation of electricity, therefore applicability is more extensive, and safety is higher.
Claims (5)
1. a kind of double stopper type standard-sized sheet safety valve, it is characterised in that: including external thread sleeve, standard-sized sheet pressure relief mechanism and rebound closing machine
Structure；Rotation is socketed with two-chamber mouthpiece in external thread sleeve；It is respectively cooperating in two-chamber mouthpiece and is communicated with the first branch pipe and second
Branch pipe；
The standard-sized sheet pressure relief mechanism includes pressure release cylinder；The first silica gel plug is slidably connected in pressure release cylinder；It is solid on first silica gel plug
Surely there is the first push rod；Pressure release cylinder includes the positioning section at rear portion and the pressure release section of front；The first described branch pipe one end connects with two-chamber
Mouth pipe connection, the other end are connected to positioning section rear end；Pressure release section rear end outer wall is along the circumferential direction uniformly provided with pressure relief opening；First pushes away
Bar is slidingly sealed across pressure release section front end；
The rebound closing means include the mounting cylinder being connect by connecting rod with pressure release cylinder；Mounting cylinder front end is provided with opening port；
The second silica gel plug is slidably connected in mounting cylinder；The second push rod is fixed on second silica gel plug；Mounting cylinder includes the sliding at rear portion
The retaining segment of section and front；Front is fixed with bar in retaining segment；Pressure spring is equipped in retaining segment；Pressure spring front end and bar
It is fixed；The second described branch pipe one end is connected to with two-chamber mouthpiece, and the other end is connected to sliding section rear end；First push rod and
The cooperation linkage of two push rods；Pressure release segment length is greater than sliding segment length；
The positioning section and retaining segment inner wall is coated with great friction coefficient coating；Pressure release section and sliding section inner wall are coated with smooth
Coating.
2. a kind of double stopper type standard-sized sheet safety valve according to claim 1, it is characterised in that: the cooperation of external thread sleeve inner end is solid
Surely there is filter.
3. a kind of double stopper type standard-sized sheet safety valve according to claim 1, it is characterised in that: retaining segment back interior wall is fixed with
Stopper.
4. a kind of double stopper type standard-sized sheet safety valve according to claim 1, it is characterised in that: the second push rod be slidingly sealed across
It slides section rear end and linearly docks connected structure with the first push rod.
5. a kind of double stopper type standard-sized sheet safety valve according to claim 1, it is characterised in that: the second push rod pass through opening port and
It is in U-shape with the first push rod and docks connected structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201720.7A CN109944967B (en) | 2019-03-18 | 2019-03-18 | double-plug type full-open safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201720.7A CN109944967B (en) | 2019-03-18 | 2019-03-18 | double-plug type full-open safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109944967A true CN109944967A (en) | 2019-06-28 |
| CN109944967B CN109944967B (en) | 2020-01-31 |
Family
ID=67010045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910201720.7A Active CN109944967B (en) | 2019-03-18 | 2019-03-18 | double-plug type full-open safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109944967B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU9001891A (en) * | 1990-12-27 | 1992-07-02 | Oncal Pty Ltd | Safety valve |
| DE69606545T2 (en) * | 1995-09-08 | 2000-09-14 | Matieres Nucleaires Velizy Vil | SAFETY VALVE FOR A SAFETY CONTAINER |
| CN1520364A (en) * | 2001-07-27 | 2004-08-11 | ʥԼɪ����˹����̫ | Master brake cylinder with opposing pistons |
| CN102459975A (en) * | 2009-05-06 | 2012-05-16 | 杜尔系统有限责任公司 | Fluid valve, particularly return valve for a painting system |
| CN102853132A (en) * | 2012-09-28 | 2013-01-02 | 中国农业大学 | Rotary outflow control device and application method thereof |
| RU2626191C1 (en) * | 2016-02-16 | 2017-07-24 | Анастасия Дмитриевна Нечаева | Hydromechanical device to smoothly load hydraulic system |
| CN109340421A (en) * | 2018-12-09 | 2019-02-15 | 江苏盐高阀门制造有限公司 | A kind of sealed relief valve preventing blocking |
-
2019
- 2019-03-18 CN CN201910201720.7A patent/CN109944967B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU9001891A (en) * | 1990-12-27 | 1992-07-02 | Oncal Pty Ltd | Safety valve |
| DE69606545T2 (en) * | 1995-09-08 | 2000-09-14 | Matieres Nucleaires Velizy Vil | SAFETY VALVE FOR A SAFETY CONTAINER |
| CN1520364A (en) * | 2001-07-27 | 2004-08-11 | ʥԼɪ����˹����̫ | Master brake cylinder with opposing pistons |
| CN102459975A (en) * | 2009-05-06 | 2012-05-16 | 杜尔系统有限责任公司 | Fluid valve, particularly return valve for a painting system |
| CN102853132A (en) * | 2012-09-28 | 2013-01-02 | 中国农业大学 | Rotary outflow control device and application method thereof |
| RU2626191C1 (en) * | 2016-02-16 | 2017-07-24 | Анастасия Дмитриевна Нечаева | Hydromechanical device to smoothly load hydraulic system |
| CN109340421A (en) * | 2018-12-09 | 2019-02-15 | 江苏盐高阀门制造有限公司 | A kind of sealed relief valve preventing blocking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109944967B (en) | 2020-01-31 |
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| CB02 | Change of applicant information |
Address after: 325000 Zhejiang Province, Wenzhou city Ouhai District East Road No. 38 National University Science Park Incubator Applicant after: Wenzhou Vocational & Technical College Address before: 325000 Department of Mechanical Engineering, Wenzhou Vocational and Technical College, Chashan Higher Education Park, Wenzhou City, Zhejiang Province Applicant before: Wenzhou Vocational & Technical College |
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Effective date of registration: 20230717 Address after: 326000, 416 Binhai 22nd Road, Wenzhou Economic and Technological Development Zone, Zhejiang Province Patentee after: XINHAI VALVE Co.,Ltd. Address before: 325000 incubator of national science and Technology Park, 38 Dongfang South Road, Ouhai District, Wenzhou, Zhejiang Patentee before: WENZHOU VOCATIONAL & TECHNICAL College |