CN111457138A - Pressure relief valve device - Google Patents
Pressure relief valve device Download PDFInfo
- Publication number
- CN111457138A CN111457138A CN202010084720.6A CN202010084720A CN111457138A CN 111457138 A CN111457138 A CN 111457138A CN 202010084720 A CN202010084720 A CN 202010084720A CN 111457138 A CN111457138 A CN 111457138A
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- CN
- China
- Prior art keywords
- pressure relief
- cavity
- chamber
- assembly
- adjusting
- 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.)
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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
- 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
- F16K17/0413—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 in the form of closure plates
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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
- F16K17/0446—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 an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—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 an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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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
- F16K17/0473—Multiple-way safety 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 safety protection, in particular to a pressure relief valve device, which comprises: a first pressure relief cavity; the second pressure relief cavity is arranged on the first pressure relief cavity and communicated with the inner side of the first pressure relief cavity; the guide pipe penetrates through the first pressure relief cavity and extends into the inner side of the first pressure relief cavity; the liquid oil pressure relief assembly is arranged in the first pressure relief cavity; the elastic pressure relief assembly is arranged in the second pressure relief cavity; the adjusting component is connected with the elastic pressure relief component. The two-stage pressure relief is carried out through the first pressure relief cavity and the second pressure relief cavity that set up, and the pressure relief is effectual, and can effectively reduce this relief valve leakage phenomenon, and the regulation of pressure relief scope can be realized through the elasticity pressure relief subassembly cooperation adjusting part that sets up, and the practicality is strong.
Description
Technical Field
The invention relates to the field of safety protection, in particular to a pressure relief valve device.
Background
The automatic opening and closing device can be automatically opened and closed according to the working pressure of the system, and is generally arranged on equipment or a pipeline of a closed system to protect the safety of the system.
When the pressure in the equipment or the pipeline exceeds the set pressure of the pressure release valve, the pressure release valve is automatically opened, the medium pressure in the equipment or the pipeline is ensured to be below the set pressure, the equipment and the pipeline are protected, and accidents are prevented.
The existing pressure release valve is protected only by one-time pressure release, the leakage condition of the pressure release valve often occurs, and the using effect is poor.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a pressure relief valve apparatus, the pressure relief valve apparatus comprising: a first pressure relief cavity;
the second pressure relief cavity is arranged on the first pressure relief cavity and communicated with the inner side of the first pressure relief cavity;
a conduit extending through the first pressure relief cavity and into the interior side of the first pressure relief cavity;
the liquid oil pressure relief assembly is arranged in the first pressure relief cavity;
the elastic pressure relief assembly is arranged in the second pressure relief cavity;
and the adjusting assembly is connected with the elastic pressure relief assembly and used for adjusting the elastic force of the elastic pressure relief assembly so as to change the opening force of the elastic pressure relief assembly.
As a further scheme of the invention: and a plurality of air outlets are formed in the side wall of the second pressure relief cavity, and when the elastic pressure relief assembly is opened, the air outlets are communicated with the first pressure relief cavity and the second pressure relief cavity.
As a still further scheme of the invention: the elastic pressure relief assembly comprises a sealing plate which is slidably mounted in the second pressure relief cavity and a spring connected with the sealing plate, and one end, far away from the sealing plate, of the spring is connected with the adjusting assembly.
As a still further scheme of the invention: the adjusting component comprises a screw rod which runs through the upper wall of the second pressure relief cavity and is in threaded connection with the upper wall of the second pressure relief cavity, one end of the screw rod is rotatably connected with an adjusting plate in the second pressure relief cavity, the other end of the screw rod is fixedly connected with an adjusting plate, and the spring is fixedly connected with the adjusting plate.
As a still further scheme of the invention: adjustment mechanism is including running through the second is let down and is pressed the chamber upper wall and with lead to groove sliding fit's movable block on the second is let down and press the chamber upper wall, the movable block through with it articulated catch bar with regulating plate 8 is articulated, the inboard of movable block is provided with two protrusions relatively the bayonet lock of movable block, the bayonet lock passes through the connecting rod and presses the piece to be connected, be provided with a plurality of equidistance's draw-in groove on the inner wall that leads to the groove, the draw-in groove with the cooperation of bayonet lock joint.
As a still further scheme of the invention: the liquid oil pressure release assembly comprises a partition plate arranged in the first pressure release cavity, the partition plate divides the first pressure release cavity into a buffer cavity and a confluence cavity, the inner side of the confluence cavity is provided with at least one communicating pipe communicated with the buffer cavity, and the conduit runs through the partition plate and is communicated with the confluence cavity through at least one air guide pipe.
As a still further scheme of the invention: the connection part of the communicating pipe and the partition board is positioned on the same horizontal plane with the upper plane of the partition board, and the through hole on the communicating pipe in the confluence cavity is positioned at the bottom of the confluence cavity.
As a still further scheme of the invention: the position where the air duct is communicated with the guide tube is positioned in the buffer cavity.
As a still further scheme of the invention: and a flange is fixed at one end of the conduit, which is far away from the first pressure relief cavity.
Compared with the prior art, the invention has the beneficial effects that: the pressure relief valve is novel in design, two-stage pressure relief is carried out through the first pressure relief cavity and the second pressure relief cavity, the pressure relief effect is good, the leakage phenomenon of the pressure relief valve can be effectively reduced, the pressure relief range can be adjusted through the matched adjustment assembly of the elastic pressure relief assembly, and the practicability is high.
Drawings
Fig. 1 is a schematic structural view of the relief valve device.
Fig. 2 is a front view of the pressure relief valve device.
Fig. 3 is a sectional view of the relief valve device. (closed state of hydraulic oil pressure relief component)
Fig. 4 is a sectional view of the relief valve device. (opening state of liquid oil pressure relief component)
FIG. 5 is a flow diagram of gas during pressure relief.
Fig. 6 is a cross-sectional view of another embodiment of a pressure relief valve device.
Fig. 7 is an enlarged view of the structure at a in fig. 6.
Fig. 8 is a schematic structural view of an adjusting mechanism in another embodiment of the relief valve device.
In the figure: 1-a first pressure relief cavity, 2-a second pressure relief cavity, 3-an adjusting disc, 4-an air outlet, 5-a guide pipe, 6-a flange, 7-a screw rod, 8-an adjusting plate, 9-a spring, 10-a sealing plate, 11-a buffer cavity, 12-a converging cavity, 13-a communicating pipe, 14-a partition plate, 15-an air duct, 16-a push rod, 17-a clamping groove, 18-a movable block, 19-a clamping pin, 20-a pressing part and 21-a connecting 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 to 5, in an embodiment of the present invention, a pressure relief valve apparatus includes:
a first pressure relief chamber 1;
the second pressure relief cavity 2 is mounted on the first pressure relief cavity 1, and the second pressure relief cavity 2 is communicated with the inner side of the first pressure relief cavity 1;
a conduit 5, wherein the conduit 5 penetrates through the first pressure relief cavity 1 and extends into the inner side of the first pressure relief cavity 1;
the liquid oil pressure relief assembly is arranged in the first pressure relief cavity 1;
the elastic pressure relief assembly is arranged in the second pressure relief cavity 2;
and the adjusting assembly is connected with the elastic pressure relief assembly and used for adjusting the elastic force of the elastic pressure relief assembly so as to change the opening force of the elastic pressure relief assembly.
In the embodiment of the invention, two-stage pressure relief is carried out by the first pressure relief cavity 1 and the second pressure relief cavity 2, the pressure relief effect is good, the leakage phenomenon of the pressure relief valve can be effectively reduced, the pressure relief range can be adjusted by matching the elastic pressure relief assembly with the adjusting assembly, and the practicability is strong.
In the embodiment of the present invention, the first pressure relief cavity 1 and the second pressure relief cavity 2 are both arranged in a rectangular parallelepiped structure, and of course, other shapes may be arranged according to requirements, which is not specifically limited in this application.
As an embodiment of the present invention, a plurality of air outlets 4 are disposed on a side wall of the second pressure relief cavity 2, and after the elastic pressure relief assembly is opened, the air outlets 4 are communicated with the first pressure relief cavity 1 and the second pressure relief cavity 2.
In the embodiment of the invention, when the pressure reaches a certain value, the elastic pressure relief assembly is opened, at the moment, the air outlet 4 is communicated with the first pressure relief cavity 1 and the second pressure relief cavity 2, and the air is exhausted through the air outlet 4.
As an embodiment of the present invention, the elastic pressure relief assembly includes a sealing plate 10 slidably mounted in the second pressure relief cavity 2, and a spring 9 connected to the sealing plate 10, wherein an end of the spring 9 away from the sealing plate 10 is connected to the adjusting assembly.
In the embodiment of the present invention, it can be understood that a limiting member for limiting the downward movement of the sealing plate 10 is disposed inside the second pressure relief cavity 2, so as to effectively support the sealing plate 10, and the position of the sealing plate 10 is not changed during the adjustment process of the adjustment assembly.
As an embodiment of the present invention, the adjusting assembly includes a screw 7 penetrating through an upper wall of the second pressure relief cavity 2 and in threaded connection with the upper wall of the second pressure relief cavity 2, one end of the screw 7 is rotatably connected with an adjusting plate 8 disposed in the second pressure relief cavity 2, the other end of the screw is fixedly connected with the adjusting plate 3, and the spring 9 is fixedly connected with the adjusting plate 8.
In the embodiment of the invention, the screw 7 is driven to rotate by the adjusting disc 3, and when the screw 7 rotates, the relative position of the screw relative to the second pressure relief cavity 2 is changed, so that the change of the relative position of the adjusting plate 8 is realized, and further, the deformation amount of the spring 9 between the adjusting plate 8 and the sealing plate 10 is changed, so that the change of the pressure relief value is realized.
As an embodiment of the present invention, please refer to fig. 6-8, the adjusting mechanism includes a movable block 18 penetrating through an upper wall of the second pressure relief cavity 2 and slidably engaged with a through groove on the upper wall of the second pressure relief cavity 2, the movable block 18 is hinged to the adjusting plate 8 through a push rod 16 hinged thereto, two bayonet locks 19 protruding from the movable block 18 are oppositely disposed on an inner side of the movable block 18, the bayonet locks 19 are connected to a pressing member 20 through a connecting rod 21, a plurality of equidistant bayonet grooves 17 are disposed on an inner wall of the through groove, and the bayonet grooves 17 are engaged with the bayonet locks 19.
In the embodiment of the present invention, it can be understood that a return spring is disposed between the two locking pins 19, and after the locking pins 19 are received in the movable block 18 by the pressing member 20, the return spring is in a compressed state, and at this time, the locking pins 19 are disengaged from the locking slots 17, and the movable block 18 is pushed to adjust the time adjustment plate 8.
In the implementation of the invention, a plurality of clamping grooves 17 with equal distance are arranged to be matched with the clamping pins 19 so as to realize the equal distance deformation of the spring 9, thereby facilitating the equal value adjustment of the pressure relief pressure.
As an embodiment of the present invention, the hydraulic oil pressure relief assembly includes a partition 14 disposed in the first pressure relief cavity 1, the partition 14 divides the first pressure relief cavity 1 into a buffer cavity 11 and a converging cavity 12, at least one communicating pipe 13 communicated with the buffer cavity 11 is disposed inside the converging cavity 12, and the conduit 5 penetrates through the partition 14 and is communicated with the converging cavity 12 through at least one air duct 15.
In the embodiment of the invention, the gas enters the confluence chamber 12 through the conduit 5 and the gas guide tube 15, and the liquid oil in the confluence chamber 12 is extruded into the buffer chamber 11 through the communicating tube 13, so that the gas is discharged in the continuous flowing process of the gas.
As an embodiment of the present invention, a connection position of the communication pipe 13 and the partition 14 is on the same horizontal plane as an upper plane of the partition 14, and a through hole of the communication pipe 13 located in the manifold chamber 12 is located at the bottom of the manifold chamber 12.
In one embodiment of the present invention, the position where the airway tube 15 communicates with the conduit 5 is located in the buffer chamber 11.
As an embodiment of the present invention, a flange 6 is fixed to an end of the conduit 5 away from the first pressure relief cavity 1.
In the embodiment of the invention, the pressure relief valve is convenient to be connected with a product through the arranged flange 6.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A pressure relief valve apparatus, characterized by comprising:
a first pressure relief chamber (1);
the second pressure relief cavity (2) is mounted on the first pressure relief cavity (1) and communicated with the inner side of the first pressure relief cavity (1);
the conduit (5) penetrates through the first pressure relief cavity (1) and extends into the inner side of the first pressure relief cavity (1);
the liquid oil pressure relief assembly is arranged in the first pressure relief cavity (1);
the elastic pressure relief assembly is arranged in the second pressure relief cavity (2);
and the adjusting assembly is connected with the elastic pressure relief assembly and used for adjusting the elastic force of the elastic pressure relief assembly so as to change the opening force of the elastic pressure relief assembly.
2. A pressure relief valve device according to claim 1, characterized in that a plurality of air outlet holes (4) are provided on the side wall of the second pressure relief chamber (2), and when the elastic pressure relief component is opened, the air outlet holes (4) are communicated with the first pressure relief chamber (1) and the second pressure relief chamber (2).
3. A pressure relief valve arrangement according to claim 1 characterized in that said resilient pressure relief assembly comprises a sealing plate (10) slidably mounted in said second pressure relief chamber (2) and a spring (9) connected to said sealing plate (10), said spring (9) being connected to said adjustment assembly at an end remote from said sealing plate (10).
4. A pressure relief valve device according to claim 3, characterized in that the adjusting assembly comprises a screw (7) penetrating through the upper wall of the second pressure relief chamber 2 and in threaded connection with the upper wall of the second pressure relief chamber (2), one end of the screw (7) is rotatably connected with an adjusting plate (8) arranged in the second pressure relief chamber (2), the other end is fixedly connected with the adjusting plate (3), and the spring (9) is fixedly connected with the adjusting plate (8).
5. A pressure relief valve device according to claim 3, characterized in that the adjusting mechanism comprises a movable block (18) which penetrates through the upper wall of the second pressure relief cavity (2) and is in sliding fit with a through groove in the upper wall of the second pressure relief cavity (2), the movable block (18) is hinged with the adjusting plate (8) through a push rod (16) hinged with the movable block, two clamping pins (19) protruding out of the movable block (18) are oppositely arranged on the inner side of the movable block (18), the clamping pins (19) are connected with a pressing piece (20) through a connecting rod (21), a plurality of clamping grooves (17) with equal distance are arranged on the inner wall of the through groove, and the clamping grooves (17) are in clamping fit with the clamping pins (19).
6. A pressure relief valve device according to claim 1, characterized in that the hydraulic oil pressure relief assembly comprises a partition plate (14) arranged in the first pressure relief chamber (1), the partition plate (14) divides the first pressure relief chamber (1) into a buffer chamber (11) and a converging chamber (12), the inner side of the converging chamber (12) is provided with at least one communicating pipe (13) communicated with the buffer chamber (11), and the conduit (5) penetrates through the partition plate (14) and is communicated with the converging chamber (12) through at least one air duct (15).
7. A pressure relief valve device according to claim 6 characterized in that the connection of the communicating tube (13) and the partition (14) is on the same horizontal plane as the upper plane of the partition (14), and the through hole on the communicating tube (13) located in the manifold chamber (12) is located at the bottom of the manifold chamber (12).
8. A pressure relief valve arrangement according to claim 6 wherein the location where the air duct (15) communicates with the conduit (5) is located in the buffer chamber (11).
9. A pressure relief valve arrangement according to claim 1, characterized in that a flange (6) is fixed to the end of the conduit (5) remote from the first pressure relief chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084720.6A CN111457138A (en) | 2020-02-10 | 2020-02-10 | Pressure relief valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084720.6A CN111457138A (en) | 2020-02-10 | 2020-02-10 | Pressure relief valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111457138A true CN111457138A (en) | 2020-07-28 |
Family
ID=71685175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010084720.6A Withdrawn CN111457138A (en) | 2020-02-10 | 2020-02-10 | Pressure relief valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111457138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113576601A (en) * | 2021-09-02 | 2021-11-02 | 段经磊 | Acute-angle reverse-S-shaped upper and lower arc-shaped tongue surface cleaner and production method |
| CN114623271A (en) * | 2022-03-28 | 2022-06-14 | 浙江创世纪环保科技有限公司 | High-voltage protection device of ozone generator |
-
2020
- 2020-02-10 CN CN202010084720.6A patent/CN111457138A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113576601A (en) * | 2021-09-02 | 2021-11-02 | 段经磊 | Acute-angle reverse-S-shaped upper and lower arc-shaped tongue surface cleaner and production method |
| CN114623271A (en) * | 2022-03-28 | 2022-06-14 | 浙江创世纪环保科技有限公司 | High-voltage protection device of ozone generator |
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| 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200728 |
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| WW01 | Invention patent application withdrawn after publication |