CN109915636A - A kind of spring loaded safety valve - Google Patents
A kind of spring loaded safety valve Download PDFInfo
- Publication number
- CN109915636A CN109915636A CN201811541149.5A CN201811541149A CN109915636A CN 109915636 A CN109915636 A CN 109915636A CN 201811541149 A CN201811541149 A CN 201811541149A CN 109915636 A CN109915636 A CN 109915636A
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- valve
- pin
- spring
- rod
- flap
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Abstract
Spool is pressed on valve seat by a kind of spring loaded safety valve using the active force of spring, and when air pressure is lower than specified value, the active force of steam is lower than the active force of spring, and flap 6 is made to be in blocking.When power pressure is increased beyond specified value, when flap 6 is by the pressure that vapor action power is more than spring system, flap 6 is opened, it pushes valve stem sleeve 8 to the left, then pushes valve rod 9, composition discharge pressure regulating mechanism, the transform linear motion of valve rod is the rotation of bonnet 25 by the pin connection between bonnet by shift fork, shift fork 21 is overturn, and steam is discharged, declines air pressure.Change spring to the active force of spool using adjusting ring, the size of cracking pressure value can be adjusted.
Description
Technical field
The invention belongs to safety valve fields, and in particular to a kind of spring loaded safety valve.
Background technique
Safety valve belongs to automatic valve class, is mainly used for boiler, on pressure vessels and pipes.Spring safety valve is by spring
Elastic pressure and the sealing elements such as the valve of valve or plunger are latched, the high pressure that is generated after when the pressure anomaly of pressure vessel general
Overcome the spring pressure of safety valve, so blocking device is opened, forms a pressure release passage, high voltage relief is fallen.But this
Kind of safety valve the disadvantage is that spring is required it is relatively high, as the pretightning force of temperature, the variation of time, spring has in use process
Different degrees of variation needs to check on time.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a kind of spring loaded safety valve, tune is utilized
Pitch circle changes spring to the active force of spool, and the size of cracking pressure value can be adjusted.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of spring loaded safety valve, including valve seat, valve seat connect valve body, and valve body right half part is protected and support as shell internal
Part；Adjusting ring is fixed and is positioned by the positioning screw being mounted on valve body；Valve petal shelf is connect by pin with flap；Valve petal shelf
Valve stem sleeve is connected by elastic cylindrical pin；Valve stem sleeve links valve petal shelf by elastic cylindrical pin, protects valve rod and fixes its movement
Track；Valve rod is mounted in valve stem sleeve, and one end is connected to spring base and with moving with it, and the other end heads on valve stem sleeve towards flap
Direction；Spring system barrier is opened and protects voltage-regulating system by guide sleeve, and defines the direction of motion of valve rod, and guide sleeve is covered in valve
In rod set, it play fixed supporting role to valve stem sleeve and valve rod；Valve body cooperates stud to fix with valve deck by nut；Spring is located at valve
Lid is internal, connecting spring seat；Handle is by pin connection on the top of valve deck；Valve deck is bolted in bonnet right end；Valve deck is logical
Cross pin connection handle；Adjusting nut connects adjusting screw rod；Adjusting screw rod connects valve rod one end；Shift fork passes through pin, pin connection valve deck
Upper end and fixation；Nut is mounted on adjusting screw rod left end；Plug screw is mounted on above valve seat；Valve petal shelf passes through pin connection flap.
The handle, on the top of valve deck, can be opened by pin connection by pulling handle turning handle bonnet.
The beneficial effects of the present invention are:
1) valve seat strong hardness is high, corrosion-resistant and high pressure resistant.
2) flap and valve petal shelf, valve petal shelf and valve stem sleeve are coupled using pin between bonnet and handle, join two parts closely
It connects, and transmits power during safe valve function.
3) there is the case where not take-off in the handle safe valve core adhesion in order to prevent being fixed on bonnet, periodically right
Safety valve carries out experiment of releasing.It can also be with emergency decompression.
4) linear motion of rod set is switched to the rotary motion of shift fork by pin connection between bonnet and shift fork, pin and shift fork, is dialled
Fork rotation drives output shaft rotation, to realize the control to valve.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is partial structure diagram of the invention.
Fig. 3 is valve body partial structural diagram of the invention.
Fig. 4 is valve body structure schematic diagram of the invention.
Fig. 5 is valve flap structure schematic diagram of the invention.
Specific embodiment
The present invention is further discussed below below in conjunction with attached drawing.
As shown in figure 1, figure 2, figure 3, figure 4 and figure 5, a kind of spring loaded safety valve, including valve seat 1, which is characterized in that valve seat 1
Valve body 2 is connected, 2 right half part of valve body protects and support inner body as shell；Adjusting ring 4 is by being mounted on valve body 2
Positioning screw 3 is fixed and positions；Valve petal shelf 5 is connect by pin 27 with flap 6；Valve petal shelf 5 connects valve rod by elastic cylindrical pin 7
Set 8；Valve stem sleeve 8 links valve petal shelf 5 by elastic cylindrical pin 7, protects valve rod 9 and fixes its motion profile；Valve rod 9 is mounted on valve
In rod set 8, one end is connected to spring base 13 and with moving with it, and the other end heads on valve stem sleeve 8 towards 6 direction of flap；Guide sleeve
Spring system barrier is opened and protects voltage-regulating system by 10, and defines the direction of motion of valve rod 9, and 10 sets of guide sleeve in valve stem sleeve 8
On, it play fixed supporting role to valve stem sleeve 8 and valve rod 9；Valve body 2 and valve deck 15 are fixed by the cooperation stud 12 of nut 11；Spring
14 are located inside valve deck 15, connecting spring seat 13；Handle 16 is connected to the top of valve deck 15 by pin 18；25 right end of bonnet passes through
Bolt 17 connects valve deck 15；Valve deck 15 connects handle 16 by pin 18；Adjusting nut 19 connects adjusting screw rod 20；Adjusting screw rod 20
Connect 9 one end of valve rod；Shift fork 21 connects 15 upper end of valve deck and fixation by pin 22, pin 23；Nut 24 is mounted on adjusting screw rod 20
Left end；Plug screw 26 is mounted on 1 top of valve seat；Valve petal shelf 5 connects flap 6 by pin 27.
The handle 16 is connected to the top of valve deck 15 by pin 18, can be pushed up by pulling handle turning handle bonnet 25
It opens.
The working principle of the invention:
Spool is pressed on valve seat using the active force of spring, when air pressure is lower than specified value, the active force of steam is lower than spring
Active force, so that flap 6 is in blocking.When power pressure is increased beyond specified value, flap 6 is super by vapor action power
When crossing the pressure of spring system, flap 6 is opened, and pushes valve stem sleeve 8 to the left, then push valve rod 9, and composition discharge pressure adjusts machine
The transform linear motion of valve rod is the rotation of bonnet 25 by the pin connection between bonnet by structure, shift fork, and shift fork 21 is overturn, discharge
Steam declines air pressure.Change spring to the active force of spool using adjusting ring, the size of cracking pressure value can be adjusted.
Claims (2)
1. a kind of spring loaded safety valve, including valve seat (1), which is characterized in that valve seat (1) connects valve body (2), valve body (2) right half
Inner body is protected and supported as shell in part；Adjusting ring (4) is fixed by the positioning screw (3) being mounted on valve body (2)
And positioning；Valve petal shelf (5) is connect by pin (27) with flap (6)；Valve petal shelf (5) connects valve stem sleeve by elastic cylindrical pin (7)
(8)；Valve stem sleeve (8) protects valve rod (9) and fixes its motion profile by elastic cylindrical pin (7) link valve petal shelf (5)；Valve rod
(9) it is mounted in valve stem sleeve (8), one end is connected to spring base (13) and with moving with it, and the other end heads on valve stem sleeve (8) direction
Flap (6) direction；Spring system barrier is opened and protects voltage-regulating system by guide sleeve (10), and defines the movement side of valve rod (9)
To guide sleeve (10) covers on valve stem sleeve 8, play fixed supporting role to valve stem sleeve (8) and valve rod (9)；Valve body (2) and valve deck
(15) fixed by nut (11) cooperation stud (12)；Spring (14) is located at valve deck (15) inside, connecting spring seat (13)；Handle
(16) top of valve deck (15) is connected to by pin (18)；Bonnet (25) right end passes through bolt (17) connection valve deck (15)；Valve deck
(15) pass through pin (18) connection handle (16)；Adjusting nut (19) connects adjusting screw rod (20)；Adjusting screw rod (20) connects valve rod
(9) one end；Shift fork (21) connects valve deck (15) upper end and fixation by pin (22), pin (23)；Nut (24) is mounted on adjusting spiral shell
Bar (20) left end；Plug screw (26) is mounted on above valve seat (1)；Valve petal shelf (5) passes through pin (27) connection flap (6).
2. a kind of spring loaded safety valve according to claim 1, which is characterized in that the handle (16) passes through pin (18)
It is connected to the top of valve deck (15), can be opened by pulling handle turning handle bonnet (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541149.5A CN109915636A (en) | 2018-12-17 | 2018-12-17 | A kind of spring loaded safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541149.5A CN109915636A (en) | 2018-12-17 | 2018-12-17 | A kind of spring loaded safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109915636A true CN109915636A (en) | 2019-06-21 |
Family
ID=66959987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811541149.5A Pending CN109915636A (en) | 2018-12-17 | 2018-12-17 | A kind of spring loaded safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109915636A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4799506A (en) * | 1987-05-20 | 1989-01-24 | Taylor Wesley L | Adjustable safety relief valve |
| CN202302145U (en) * | 2011-11-01 | 2012-07-04 | 罗浮阀门集团有限公司 | High-performance safety valve with backpressure regulating ring |
| CN203500598U (en) * | 2013-09-29 | 2014-03-26 | 北京航天动力研究所 | Valve rod closed type closed back pressure adjusting type steam safe valve |
| CN203743544U (en) * | 2014-01-23 | 2014-07-30 | 武汉锅炉集团阀门有限责任公司 | Full lift spring safety valve |
| CN204083401U (en) * | 2014-08-22 | 2015-01-07 | 罗浮阀门集团有限公司 | Steam security valve |
-
2018
- 2018-12-17 CN CN201811541149.5A patent/CN109915636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4799506A (en) * | 1987-05-20 | 1989-01-24 | Taylor Wesley L | Adjustable safety relief valve |
| CN202302145U (en) * | 2011-11-01 | 2012-07-04 | 罗浮阀门集团有限公司 | High-performance safety valve with backpressure regulating ring |
| CN203500598U (en) * | 2013-09-29 | 2014-03-26 | 北京航天动力研究所 | Valve rod closed type closed back pressure adjusting type steam safe valve |
| CN203743544U (en) * | 2014-01-23 | 2014-07-30 | 武汉锅炉集团阀门有限责任公司 | Full lift spring safety valve |
| CN204083401U (en) * | 2014-08-22 | 2015-01-07 | 罗浮阀门集团有限公司 | Steam security 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190621 |
|
| RJ01 | Rejection of invention patent application after publication |