CN108361424A - A kind of air cavity damp type Pressure Relief Valve - Google Patents
A kind of air cavity damp type Pressure Relief Valve Download PDFInfo
- Publication number
- CN108361424A CN108361424A CN201810154494.7A CN201810154494A CN108361424A CN 108361424 A CN108361424 A CN 108361424A CN 201810154494 A CN201810154494 A CN 201810154494A CN 108361424 A CN108361424 A CN 108361424A
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- CN
- China
- Prior art keywords
- valve
- air cavity
- damping
- pressure relief
- relief valve
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- 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.)
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention provides a kind of air cavity damp type Pressure Relief Valve, including valve body, valve disc, damping mechanism, spring, mounting flange seat and more support adjusting rods；Valve body is the cylinder of both ends open, and bottom end is fixed on by mounting flange seat on pressure chamber bulkhead；Valve disc includes disk body and cylinder, and for barrel jacket on the dampened disk of damping mechanism, dampened disk outer ring is equipped with sealing ring, so that disk body, cylinder and dampened disk form damping air cavity, disk body is equipped with damping hole, is used for the disengaging of gas；By adjusting the length of support adjusting rod, change the position of damping backboard, to the pretightning force of adjustment spring.The present invention is for self-operated type pressure release on the circumference of airtight region and has the function of air cavity resistance disturbance rejection, and when the practical superpressure in airtight region is higher than design value, Pressure Relief Valve self-operated type is opened, and according to the external pressure release of the flow of design；When practical superpressure is less than design value, Pressure Relief Valve is closed.
Description
Technical field
The present invention relates to pressure-regulating valve field, more particularly to a kind of air cavity damp type Pressure Relief Valve.
Background technology
Collective protection technology prevents coring life pollutant from entering the most effective means inside naval vessel as naval vessel, at home and abroad
Various naval vessel on have been obtained for extensive use.And the key in collective protection technology is exactly to remain relatively extraneous in collection defence area
Air has stable superpressure.This needs the overpressure control system of a set of complexity to realize, is mainly let out including super pressure control valve, pressure
Put the compositions such as valve, atmospheric pressure probe, cabin pressure meter and manual bleeder valve.Wherein Pressure Relief Valve is that one of which is important
Equipment is largely equipped in collective protection area circumference personnel's transit passage, and major function is that disengaging is maintained when there is personnel's passage
Channel inner pressure is stablized.
In the actual use environment, it when collection defence area access way has personnel's passage, needs to carry out switch door operation, this meeting pair
The superpressure in collective protection area, which is established, generates many disturbance factors, and this disturbance is temporary, can be eliminated again with the closing of door.
Since common Pressure Relief Valve is all made of the simple executing agency such as spring or reed, anti-interference ability is poor, can cause door
It is violent to be opened and closed pressure change in instant channel.It can effectively eliminate what ambient pressure variation was brought by increasing air cavity damping mechanism
Disturbance, while effect of releasing is not interfered with again.
Invention content
The purpose of the present invention is to provide a kind of air cavity damp type Pressure Relief Valves, anti-to solve existing Pressure Relief Valve
Interference performance is poor, and door is opened and closed the problem that pressure change is violent in instant channel.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of air cavity damp type Pressure Relief Valve is provided,
Including valve body, valve disc, damping mechanism, spring, mounting flange seat and more support adjusting rods；The valve body is the cylinder of both ends open
Body, bottom end are fixed on by the mounting flange seat on pressure chamber bulkhead；The valve disc be placed in valve inner and with valve body top
End opening is with fitting, and the valve disc includes disk body and cylinder, and the barrel jacket is on the dampened disk of the damping mechanism, the damping
Disk outer ring is equipped with sealing ring, so that the disk body, cylinder and dampened disk form damping air cavity, the disk body is equipped with resistance
Buddhist nun hole is used for the disengaging of gas；The damping mechanism further includes damping backboard, one end of the damping backboard and the dampened disk
It is connected, the other end is connect by the support adjusting rod with mounting flange；The both ends of the spring is separately connected disk body and damping
Backboard；By adjusting the length of the support adjusting rod, change the position of the damping backboard, to the preload of adjustment spring
Power；
When bleeder valve both sides no pressure difference, the pretightning force of spring by the valve disc be pressed to the open top of valve body to
Holding is released valve closing state；When bleeder valve both sides generate pressure difference variation, valve disc is turned on and off under the effect of the pressure,
Reaction force, which is generated, to the effect that damping air cavity generates compression or stretches, in the damping air cavity delays pressure change, while gas
Chamber is vented by damping hole, and reaction force is gradually reduced, until damping air cavity external and internal pressure rebalances.
Further, the top end opening of the valve body is equipped with protection network.
Further, the mounting flange seat is equipped with protection network.
Further, the support adjusting rod is threaded, and passes through the length of support adjusting rod described in threaded adjusting.
Further, the valve body is molded using one body technique of stainless steel.
Further, the pretightning force adjustable range of the spring is 0~700Pa.
Further, the support adjusting rod is 3.
Air cavity damp type Pressure Relief Valve provided by the invention is for self-operated type pressure release on the circumference of airtight region and has gas
The function of chamber resistance disturbance rejection, when the practical superpressure in airtight region is higher than design value, Pressure Relief Valve self-operated type is opened, and
According to the external pressure release of the flow of design；When practical superpressure is less than design value, Pressure Relief Valve is closed；When outer gas stream field generates
It when disturbance, is eliminated and is disturbed by air cavity damping mechanism, it is ensured that bleeder valve both ends pressure difference is stablized.
Description of the drawings
Invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the structural schematic diagram of air cavity damp type Pressure Relief Valve of the present invention；
Fig. 2 is the fundamental diagram of air cavity damp type Pressure Relief Valve of the present invention.
Specific implementation mode
Air cavity damp type Pressure Relief Valve proposed by the present invention is made below in conjunction with the drawings and specific embodiments further detailed
It describes in detail bright.According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that attached drawing is equal
Use using very simplified form and non-accurate ratio, only to it is convenient, lucidly aid in illustrating the embodiment of the present invention
Purpose.
The present invention relates to a kind of air cavity damp type Pressure Relief Valves, by protection network 1, valve body 2, valve disc 3, spring 4, damping machine
The compositions such as structure 5, support adjusting rod 6, mounting flange seat 7；2 cylinder cylinder of valve body, both ends are equipped with opening.2 top of valve body
It opens and carries protection network 1, the bottom opening of valve body 2 is fixed on by mounting flange seat 7 on bulkhead, and mounting flange seat is with protection
Net.Valve disc 3 is located in valve body 2 and matches with one heart with open top, can open and be closed.There is hollow circle at 3 rear portion of valve disc
Column casing body 3-1, is sleeved on the dampened disk 5-1 of damping mechanism 5, and outer ring is equipped with sealing ring 5-2 on dampened disk 5-1, it is ensured that valve disc cylinder
Between body 3-1 and dampened disk 5-1 ensure it is airtight while can also easy slide.It is additionally provided with spring 4 outside valve disc cylinder 3-1,
4 both ends of spring are contacted with valve disc 3 and 5 root of damping mechanism respectively；The bottom of damping mechanism 5 is equipped with 3 support adjusting rods 6, with
Mounting flange seat 7 connects, and adjusting rod 6 is threaded, and the position of damping mechanism 5 can be adjusted by rotation adjusting lever 6, to adjust
Save the pretightning force of spring 4.A damping air cavity is formed between damping mechanism dampened disk 5-1 and valve disc cylinder 3-1, valve disc front is opened
There is damping hole 3-2.
When bleeder valve both sides do not have pressure difference, valve disc is pressed in valve body by the pretightning force for valve spring of releasing keeps valve member to close
Closed state.
When bleeder valve both sides generate a fixed pressure difference, a fixed pressure is generated on differential pressure action to valve disc
Power pushes valve disc to open, and holddown spring, spring force becomes larger, while the air cavity between valve disc and damping unit is compressed, and is passed through
Damping hole exhaust among valve disc, slows down valve disc movement speed, until pressure is with spring dynamic balance on valve disc；
When changing when bleeder valve both sides generate pressure difference, the valve disc of Pressure Relief Valve is opened or is closed under the effect of the pressure
It closes, the effect that a compression is generated to damping air cavity and is stretched, generating a reaction force in air cavity delays pressure change, simultaneously
Air cavity is vented by damping hole, and reaction force is gradually reduced, until air cavity external and internal pressure rebalances.It is opposite with air cavity is not set
The Pressure Relief Valve of damping mechanism, change procedure are that slow but final equalization point is consistent.
If the pressure difference variation generated is moment, pressure difference is eliminated again in a short time after generating, at this time in damping air cavity
Under the action of, the displacement that valve disc only generates a very little just restores to the original state state.The reaction force of damping air cavity slows down or even disappears
Ensure that superpressure is stablized in cabin except transient-upset.
Obviously, those skilled in the art can carry out the present invention essence of various changes and deformation without departing from the present invention
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (7)
1. a kind of air cavity damp type Pressure Relief Valve, which is characterized in that including valve body, valve disc, damping mechanism, spring, Method for Installation
Blue seat and more support adjusting rods；The valve body is the cylinder of both ends open, and bottom end is fixed on by the mounting flange seat
On pressure chamber bulkhead；The valve disc is placed in valve inner and with top end of the valve body opening with suitable, and the valve disc includes disk body and cylinder,
For the barrel jacket on the dampened disk of the damping mechanism, the dampened disk outer ring is equipped with sealing ring, so that the disk body,
Cylinder and dampened disk form damping air cavity, and the disk body is equipped with damping hole, is used for the disengaging of gas；The damping mechanism is also
Including damping backboard, one end of the damping backboard is connected with dampened disk, and the other end passes through the support adjusting rod and Method for Installation
Blue disk connection；The both ends of the spring is separately connected disk body and damping backboard；By adjusting the length of the support adjusting rod, change
The position of the damping backboard, to the pretightning force of adjustment spring；
When bleeder valve both sides no pressure difference, the valve disc is pressed to the open top of valve body to keep by the pretightning force of spring
It releases valve closing state；When bleeder valve both sides generate pressure difference variation, valve disc is turned on and off under the effect of the pressure, to resistance
The effect that Buddhist nun's air cavity generates compression or stretches, the interior reaction force that generates of the damping air cavity delays pressure change, while air cavity is logical
Overdamp hole is vented, and reaction force is gradually reduced, until damping air cavity external and internal pressure rebalances.
2. air cavity damp type Pressure Relief Valve as described in claim 1, which is characterized in that the top end opening of the valve body is equipped with
Protection network.
3. air cavity damp type Pressure Relief Valve as described in claim 1, which is characterized in that the mounting flange seat is equipped with protection
Net.
4. air cavity damp type Pressure Relief Valve as described in claim 1, which is characterized in that the support adjusting rod carries spiral shell
Line passes through the length of support adjusting rod described in threaded adjusting.
5. air cavity damp type Pressure Relief Valve as described in claim 1, which is characterized in that the valve body is using stainless steel one
Technology is molded.
6. air cavity damp type Pressure Relief Valve as described in claim 1, which is characterized in that the pretightning force of the spring adjusts model
It encloses for 0~700Pa.
7. air cavity damp type Pressure Relief Valve as described in claim 1, which is characterized in that the support adjusting rod is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810154494.7A CN108361424B (en) | 2018-02-23 | 2018-02-23 | Air cavity damping type pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810154494.7A CN108361424B (en) | 2018-02-23 | 2018-02-23 | Air cavity damping type pressure relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108361424A true CN108361424A (en) | 2018-08-03 |
| CN108361424B CN108361424B (en) | 2022-09-13 |
Family
ID=63002254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810154494.7A Active CN108361424B (en) | 2018-02-23 | 2018-02-23 | Air cavity damping type pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108361424B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605802A (en) * | 1968-11-02 | 1971-09-20 | Itt | Check valve |
| US4693270A (en) * | 1986-03-24 | 1987-09-15 | Durabla Manufacturing Co. | Check valve |
| CN201487309U (en) * | 2009-03-30 | 2010-05-26 | 郑州大学 | High-pressure check valve |
| CN102089559A (en) * | 2008-07-08 | 2011-06-08 | 艾默生过程管理调节技术公司 | Pressure relief valves |
| CN202360831U (en) * | 2011-12-15 | 2012-08-01 | 中国舰船研究设计中心 | Flow adjustment discharge valve |
| CN202493726U (en) * | 2011-08-29 | 2012-10-17 | 太平洋水处理工程有限公司 | Blower discharge valve with rapid discharge control mechanism |
| CN204267816U (en) * | 2014-12-09 | 2015-04-15 | 洛阳中集凌宇汽车有限公司 | A kind of huge discharge relief valve |
-
2018
- 2018-02-23 CN CN201810154494.7A patent/CN108361424B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605802A (en) * | 1968-11-02 | 1971-09-20 | Itt | Check valve |
| US4693270A (en) * | 1986-03-24 | 1987-09-15 | Durabla Manufacturing Co. | Check valve |
| CN102089559A (en) * | 2008-07-08 | 2011-06-08 | 艾默生过程管理调节技术公司 | Pressure relief valves |
| CN201487309U (en) * | 2009-03-30 | 2010-05-26 | 郑州大学 | High-pressure check valve |
| CN202493726U (en) * | 2011-08-29 | 2012-10-17 | 太平洋水处理工程有限公司 | Blower discharge valve with rapid discharge control mechanism |
| CN202360831U (en) * | 2011-12-15 | 2012-08-01 | 中国舰船研究设计中心 | Flow adjustment discharge valve |
| CN204267816U (en) * | 2014-12-09 | 2015-04-15 | 洛阳中集凌宇汽车有限公司 | A kind of huge discharge relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108361424B (en) | 2022-09-13 |
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