CN112539289A - Two-way pressure release valve disc of PV valve - Google Patents
Two-way pressure release valve disc of PV valve Download PDFInfo
- Publication number
- CN112539289A CN112539289A CN202011283557.2A CN202011283557A CN112539289A CN 112539289 A CN112539289 A CN 112539289A CN 202011283557 A CN202011283557 A CN 202011283557A CN 112539289 A CN112539289 A CN 112539289A
- Authority
- CN
- China
- Prior art keywords
- valve disc
- pressure valve
- negative pressure
- limiting plate
- spring
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks 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
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to the field of PV valves and discloses a two-way pressure relief valve disc of a PV valve, which comprises a valve body, wherein a sealing ring is arranged in the valve body, a pressure valve disc is arranged at the upper end of the sealing ring, pressure valve disc limiting plates are arranged on two sides, close to the pressure valve disc, of the inner side surface of the valve body, a pressure spring is arranged on the inner surface of each pressure valve disc limiting plate, a pressure valve disc guide seat is arranged on the outer surface of the upper end of one side, close to the pressure spring, of each pressure valve disc, a negative pressure valve disc sealing element is arranged at the lower end of each pressure valve disc. This two-way pressure release valve disc of PV valve possesses simple structure, operation stability, can realize automatic pressure release, can also realize automatic pressure boost simultaneously, brings better use prospect.
Description
Technical Field
The invention relates to the field of PV valves, in particular to a bidirectional pressure relief valve disc of a PV valve.
Background
The PV valve is also called a high-speed discharge pressure/vacuum valve, is a gravity type automatic pressure control ventilation device integrating a vacuum valve, a pressure valve and a high-speed discharge device, mainly realizes the pressure balance in a ballast bin, and has the tightness determining the safety operation of a ship.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the PV valve bidirectional pressure relief valve disc which has the advantages of simple structure, stable operation, capability of realizing automatic pressure relief and automatic pressurization.
(II) technical scheme
In order to realize the purposes of simple structure, stable operation, automatic pressure relief and automatic pressurization, the invention provides the following technical scheme: the utility model provides a two-way pressure release valve disc of PV valve, includes the valve body, the inside of valve body is provided with the sealing washer, the upper end of sealing washer is provided with pressure valve disc, the both sides that the inboard surface of valve body is close to pressure valve disc are provided with the pressure valve disc limiting plate, the internal surface of pressure valve disc limiting plate is provided with pressure spring, one side upper end surface that pressure valve disc is close to pressure spring is provided with the pressure valve disc guide holder, the lower extreme of pressure valve disc is provided with negative pressure valve disc sealing member, one side lower extreme surface of negative pressure valve disc sealing member is provided.
Preferably, the sealing ring is fixedly embedded on the inner side surface of the valve body, the sealing ring is annular, the lower end surface of the pressure valve disc guide seat is fixedly connected with the upper end surface of the pressure valve disc, and the pressure valve disc guide seat is Z-shaped.
Preferably, be fixed connection between pressure valve disc limiting plate and the valve body, the pressure valve disc limiting plate is the Z style of calligraphy, the quantity of pressure valve disc limiting plate is two sets of, and is the symmetric distribution, the pressure valve disc limiting plate that is close to pressure spring one side is higher than the pressure valve disc limiting plate of opposite side, pressure spring's one end fixed connection is in the internal surface of pressure valve disc limiting plate.
Preferably, a negative pressure valve disc is arranged between the negative pressure valve disc sealing element and the pressure valve disc, the negative pressure valve disc is fixedly connected to the upper end surface of the negative pressure valve disc sealing element, the negative pressure valve disc sealing element and the negative pressure valve disc are concentrically arranged and are matched in shape, a through hole is formed in the center of the pressure valve disc, and the cross section of the through hole is smaller than that of the negative pressure valve disc.
Preferably, the upper end of the negative pressure valve disc sealing element is provided with a pull rod, the surface of the pull rod is provided with a hexagonal nut and a gasket, the pull rod penetrates through the negative pressure valve disc and extends to the inner side of the negative pressure valve disc sealing element, the gasket is connected to the surface of the pull rod and clings to the upper surface of the negative pressure valve disc sealing element, and the hexagonal nut is movably connected to the surface of the pull rod through threads and located at the upper end of the gasket.
Preferably, the two sides of the outer surface of the lower end of the pressure valve disc, which are close to the sealing part of the negative pressure valve disc, are provided with negative pressure valve disc limiting plates, the negative pressure valve disc limiting plates are Z-shaped, the negative pressure valve disc limiting plates are fixedly connected with the pressure valve disc, and the negative pressure valve disc limiting plates are two groups and are symmetrically distributed.
Preferably, a negative pressure valve disc spring is arranged on the inner surface of the negative pressure valve disc limiting plate opposite to one side of the pressure spring, one end of the negative pressure valve disc spring is fixedly connected with the inner surface of the negative pressure valve disc limiting plate, and the negative pressure valve disc limiting plate close to one side of the negative pressure valve disc spring is higher than the negative pressure valve disc limiting plate on the other side.
Preferably, the outer surface of the lower end of the negative pressure valve disc sealing member is provided with a negative pressure valve disc guide seat, and the outer surface of the upper end of the negative pressure valve disc guide seat is fixedly connected with the outer surface of the lower end of the negative pressure valve disc sealing member.
(III) advantageous effects
Compared with the prior art, the invention provides a PV valve bidirectional pressure relief valve disc, which has the following beneficial effects:
1. this two-way pressure release valve disc of PV valve, through pressure valve disc, the cooperation of pressure spring and pressure valve disc limiting plate, under the natural condition, pressure valve disc capping is pressed on the sealing washer under pressure spring's effect, when ballast storehouse internal gas pressure is too big, the pressure increase of effect on pressure valve disc, pressure valve disc rebound extrusion pressure spring this moment, make pressure valve disc drive pressure valve disc guide holder along the inboard rebound of pressure valve disc limiting plate, with ballast storehouse internal gas discharge completion pressure release, do not need manual operation, can automatic pressure release.
2. This two-way pressure release valve disc of PV valve, through negative pressure valve disc, negative pressure spring and negative pressure valve disc limiting plate's cooperation, under the natural condition, negative pressure valve disc capping pressure is on negative pressure valve disc sealing member under negative pressure valve disc spring's effect, when ballast storehouse internal pressure is low excessively, under the effect of outside atmospheric pressure, make negative pressure valve disc rebound extrusion negative pressure valve disc spring, make negative pressure valve disc guide holder that negative pressure valve disc drove the lower extreme along the inboard downward movement of negative pressure valve disc limiting plate, and then form the clearance, make outside gas get into the interior atmospheric pressure rising of messenger's storehouse in the ballast storehouse, accomplish the pressure boost, and the operation is thus simple, can realize.
3. The PV valve bidirectional pressure relief valve disc is simple in structure, stable in operation and good in application prospect.
Drawings
FIG. 1 is a schematic view of the entire structure of the present invention.
In the figure: 1. a valve body; 2. a pressure valve disc; 3. a pressure valve disc guide seat; 4. a pressure spring; 5. a seal ring; 6. a negative pressure valve disc limiting plate; 7. a pressure valve disc limiting plate; 8. a hexagonal nut; 9. a gasket; 10. a negative pressure valve disc seal; 11. a negative pressure valve disc; 12. a negative pressure valve disc spring; 13. a negative pressure valve disc guide seat; 14. a pull rod.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a two-way pressure relief valve disc of a PV valve includes a valve body 1, a sealing ring 5 is disposed inside the valve body 1, a pressure valve disc 2 is disposed at an upper end of the sealing ring 5, pressure valve disc limiting plates 7 are disposed on two sides of an inner side surface of the valve body 1, which are close to the pressure valve disc 2, an inner surface of each of the pressure valve disc limiting plates 7 is provided with a pressure spring 4, a pressure valve disc guide seat 3 is disposed on an upper end outer surface of one side of each of the pressure valve disc 2, which is close to the pressure spring 4, a negative pressure valve disc sealing member 10 is disposed at a lower end of the pressure valve disc 2, the negative pressure valve disc sealing member 10 can increase sealing performance between.
Be fixed connection between pressure valve disc limiting plate 7 and the valve body 1, pressure valve disc limiting plate 7 is the Z style of calligraphy, the quantity of pressure valve disc limiting plate 7 is two sets of, and be the symmetric distribution, pressure valve disc limiting plate 7 can prevent that pressure valve disc 2 from breaking away from in the valve body 1, pressure valve disc limiting plate 7 that is close to pressure spring 4 one side is higher than the pressure valve disc limiting plate 7 of opposite side, pressure spring 4's one end fixed connection is in the internal surface of pressure valve disc limiting plate 7, pressure spring 4 can guarantee the leakproofness of pressure valve disc 2 under the natural state.
Be provided with negative pressure valve disc 11 between negative pressure valve disc sealing member 10 and pressure valve disc 2, negative pressure valve disc 11 fixed connection is on the upper end surface of negative pressure valve disc sealing member 10, negative pressure valve disc sealing member 10 is concentric setting with negative pressure valve disc 11, and the shape is identical, negative pressure valve disc sealing member 10 can increase the leakproofness between pressure valve disc 2 and the negative pressure valve disc 11, the through-hole has been seted up at the center of pressure valve disc 2, the through-hole is favorable to the pressure boost, and the cross section of through-hole is less than the cross section of negative pressure.
The upper end of the negative pressure valve disc sealing piece 10 is provided with a pull rod 14, the surface of the pull rod 14 is provided with a hexagon nut 8 and a gasket 9, the gasket 9 can increase the connection stability between the pull rod 14 and the negative pressure valve disc 11, the pull rod 14 penetrates through the negative pressure valve disc 11 and extends to the inner side of the negative pressure valve disc sealing piece 10, the gasket 9 is connected to the surface of the pull rod 14 and clings to the upper surface of the negative pressure valve disc sealing piece 10, and the hexagon nut 8 is movably connected to the surface of the pull rod 14 through threads and is located at the upper end of the gasket.
The two sides of the outer surface of the lower end of the pressure valve disc 2, which are close to the negative pressure valve disc sealing element 10, are provided with negative pressure valve disc limiting plates 6, the negative pressure valve disc limiting plates 6 are Z-shaped, the negative pressure valve disc limiting plates 6 are fixedly connected with the pressure valve disc 2, and the negative pressure valve disc limiting plates 6 are two groups and are symmetrically distributed.
The inner surface of the negative pressure valve disc limiting plate 6 opposite to one side of the pressure spring 4 is provided with a negative pressure valve disc spring 12, the negative pressure valve disc spring 12 can ensure the tightness of the negative pressure valve disc 11 in a natural state, one end of the negative pressure valve disc spring 12 is fixedly connected with the inner surface of the negative pressure valve disc limiting plate 6, and the negative pressure valve disc limiting plate 6 close to one side of the negative pressure valve disc spring 12 is higher than the negative pressure valve disc limiting plate 6 on the other side.
The outer surface of the lower end of the negative pressure valve disc sealing member 10 is provided with a negative pressure valve disc guide seat 13, and the outer surface of the upper end of the negative pressure valve disc guide seat 13 is fixedly connected with the outer surface of the lower end of the negative pressure valve disc sealing member 10.
When the pressure relief valve works, a user installs the valve body 1 on a ballast cabin of a ship, the opening at the lowest part is communicated with the inner cavity of the ballast cabin, naturally, the pressure valve disc 2 is covered and pressed on the sealing ring 5 under the action of the pressure spring 4, the negative pressure valve disc 11 is covered and pressed on the negative pressure valve disc sealing element 10 under the action of the negative pressure valve disc spring 12, when the pressure in the ballast cabin is overlarge, the pressure acting on the pressure valve disc 2 is increased, at the moment, the pressure valve disc 2 moves upwards to extrude the pressure spring 4, so that the pressure valve disc 2 drives the pressure valve disc guide seat 3 to move upwards along the inner side of the pressure limiting plate 7, the gas in the ballast cabin is discharged to finish the pressure relief, when the pressure in the ballast cabin is too low, the pressure is just opposite to the outward pressure relief process, under the action of external atmospheric pressure, the negative pressure valve disc 11 moves downwards to extrude the negative pressure valve disc spring 12, so that the negative pressure, and then a gap is formed, so that external air enters the ballast bin to raise the air pressure in the bin, and pressurization is completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A two-way pressure release valve disc of PV valve, includes valve body (1), its characterized in that: the inside of valve body (1) is provided with sealing washer (5), the upper end of sealing washer (5) is provided with pressure valve disc (2), the both sides that the inboard surface of valve body (1) is close to pressure valve disc (2) are provided with pressure valve disc limiting plate (7), the internal surface of pressure valve disc limiting plate (7) is provided with pressure spring (4), one side upper end surface that pressure valve disc (2) are close to pressure spring (4) is provided with pressure valve disc guide holder (3), the lower extreme of pressure valve disc (2) is provided with negative pressure valve disc sealing member (10), one side lower extreme surface of negative pressure valve disc sealing member (10) is provided with negative pressure valve disc guide holder (13).
2. The PV valve bi-directional pressure relief valve disc of claim 1, wherein: sealing washer (5) are fixed inlay in the inboard surface of valve body (1), sealing washer (5) are the annular, be fixed connection between the lower extreme surface of pressure valve disc guide holder (3) and the upper end surface of pressure valve disc (2), pressure valve disc guide holder (3) are the Z style of calligraphy.
3. The PV valve bi-directional pressure relief valve disc of claim 1, wherein: be fixed connection between pressure valve disc limiting plate (7) and valve body (1), pressure valve disc limiting plate (7) are the Z style of calligraphy, the quantity of pressure valve disc limiting plate (7) is two sets of, and is the symmetric distribution, pressure valve disc limiting plate (7) that are close to pressure spring (4) one side are higher than pressure valve disc limiting plate (7) of opposite side, the one end fixed connection of pressure spring (4) is in the internal surface of pressure valve disc limiting plate (7).
4. The PV valve bi-directional pressure relief valve disc of claim 1, wherein: be provided with negative pressure valve disc (11) between negative pressure valve disc sealing member (10) and pressure valve disc (2), negative pressure valve disc (11) fixed connection is at the upper end surface of negative pressure valve disc sealing member (10), negative pressure valve disc sealing member (10) is concentric setting with negative pressure valve disc (11), and the shape coincide, the through-hole has been seted up at the center of pressure valve disc (2), and the cross section of through-hole is less than the cross section of negative pressure valve disc (11).
5. The PV valve bi-directional pressure relief valve disc of claim 1, wherein: the upper end of negative pressure valve disc sealing member (10) is provided with pull rod (14), the surface of pull rod (14) is provided with hexagon nut (8) and gasket (9), pull rod (14) run through in negative pressure valve disc (11) and extend to the inboard of negative pressure valve disc sealing member (10), gasket (9) are connected in the surface of pull rod (14), and hug closely the upper surface of negative pressure valve disc sealing member (10), hexagon nut (8) are through screw thread swing joint in the surface of pull rod (14), and are located the upper end of gasket (9).
6. The PV valve bi-directional pressure relief valve disc of claim 1, wherein: the two sides of the outer surface of the lower end of the pressure valve disc (2) close to the negative pressure valve disc sealing element (10) are provided with negative pressure valve disc limiting plates (6), the negative pressure valve disc limiting plates (6) are Z-shaped, fixed connection is arranged between the negative pressure valve disc limiting plates (6) and the pressure valve disc (2), and the negative pressure valve disc limiting plates (6) are two groups and are symmetrically distributed.
7. The PV valve bi-directional pressure relief valve disc according to claim 6, wherein: the inner surface of the negative pressure valve disc limiting plate (6) opposite to one side of the pressure spring (4) is provided with a negative pressure valve disc spring (12), one end of the negative pressure valve disc spring (12) is fixedly connected with the inner surface of the negative pressure valve disc limiting plate (6), and the negative pressure valve disc limiting plate (6) close to one side of the negative pressure valve disc spring (12) is higher than the negative pressure valve disc limiting plate (6) on the other side.
8. The PV valve bi-directional pressure relief valve disc of claim 1, wherein: and the outer surface of the lower end of the negative pressure valve disc sealing member (10) is provided with a negative pressure valve disc guide seat (13), and the outer surface of the upper end of the negative pressure valve disc guide seat (13) is fixedly connected with the outer surface of the lower end of the negative pressure valve disc sealing member (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011283557.2A CN112539289A (en) | 2020-11-16 | 2020-11-16 | Two-way pressure release valve disc of PV valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011283557.2A CN112539289A (en) | 2020-11-16 | 2020-11-16 | Two-way pressure release valve disc of PV valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112539289A true CN112539289A (en) | 2021-03-23 |
Family
ID=75014266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011283557.2A Pending CN112539289A (en) | 2020-11-16 | 2020-11-16 | Two-way pressure release valve disc of PV valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112539289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116464811A (en) * | 2023-06-19 | 2023-07-21 | 江苏南极机械有限责任公司 | PV valve with bidirectional pressure relief function |
-
2020
- 2020-11-16 CN CN202011283557.2A patent/CN112539289A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116464811A (en) * | 2023-06-19 | 2023-07-21 | 江苏南极机械有限责任公司 | PV valve with bidirectional pressure relief function |
| CN116464811B (en) * | 2023-06-19 | 2023-09-05 | 江苏南极机械有限责任公司 | PV valve with bidirectional pressure relief function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112539289A (en) | Two-way pressure release valve disc of PV valve | |
| CN207121595U (en) | A kind of food fermentation device | |
| CN214743589U (en) | Two-way pressure release valve disc of PV valve | |
| CN203215014U (en) | Bidirectional flow pneumatic angle seat valve | |
| CN214119066U (en) | Outlet pressure control valve for refrigeration system | |
| CN201401537Y (en) | Ball core check valve preventing natural leakage | |
| CN211334121U (en) | Pneumatic discharging valve for PVC auxiliary agent mixer | |
| CN210770472U (en) | High-sealing pressure safety valve | |
| CN210178941U (en) | Gas regulator suitable for low pressure gas pipe network | |
| CN202164000U (en) | Oil buffer | |
| CN110792818A (en) | Overflow valve with pressure adjustable structure | |
| CN211009957U (en) | High-pressure-resistant sealing high-pressure gate valve | |
| CN211231745U (en) | Double-seal spring type safety valve | |
| CN209340513U (en) | A kind of shut-off valve with check function | |
| CN217951334U (en) | Upper cover baffle type one-way valve | |
| CN210218726U (en) | Pneumatic gate valve for multifunctional combined suction and exhaust vehicle | |
| CN221237179U (en) | Exhaust valve | |
| CN2729461Y (en) | Safety valve for methane tank | |
| CN205908760U (en) | Weight butterfly valve of taking spring buffer structure closes valve angle demodulator | |
| CN201502756U (en) | Lifting vertical flap check valve | |
| CN215059809U (en) | Pressure-adjustable bilateral exhaust relief valve for railway | |
| CN205781328U (en) | A kind of disc spring loads the double ball valves automatically compensated | |
| CN215058543U (en) | Overflow valve | |
| CN205401857U (en) | High performance spring opens formula relief valve entirely | |
| CN219734055U (en) | High-efficiency shock absorber |
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 |