CN110319206A - A kind of Seal Oil vacuum system non-return device - Google Patents
A kind of Seal Oil vacuum system non-return device Download PDFInfo
- Publication number
- CN110319206A CN110319206A CN201910471569.9A CN201910471569A CN110319206A CN 110319206 A CN110319206 A CN 110319206A CN 201910471569 A CN201910471569 A CN 201910471569A CN 110319206 A CN110319206 A CN 110319206A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- diaphragm seal
- vacuum system
- hole
- limited block
- 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
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
- F16K15/023—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The present invention relates to vacuum system technical field of sealing technology, specifically disclose a kind of Seal Oil vacuum system non-return device, including pedestal, the screw rod of at least two fixations on the base, it further include the diaphragm seal set gradually from bottom to top along screw rod, spring, limited block and nut, pedestal is equipped with the entrance being connected to vacuum system and the conduit being connected to entrance, diaphragm seal is equipped with the first mounting hole passed through for screw rod and for the first through hole of medium outflow, diaphragm seal is fastened on conduit and can be along screw slide, limited block is equipped with the second mounting hole passed through for screw rod and for the second through-hole of medium outflow, conduit is not be overlapped with first through hole, spring upper end offsets with limited block, lower spring end offsets with diaphragm seal.The simple service life that is strong, effectively raising equipment of the present invention, saves the maintenance cost of certain production cost and personnel.
Description
Technical field
The present invention relates to vacuum system technical field of sealing technology.
Background technique
The original Seal Oil vacuum system non-return device of power plant, in use, as sealing oil vacuum pump is distinctive
Structure type and the method for operation formed, diaphragm seal outer rim are opened one along the inner wall one of non-return device and are slided with closing, it is easy to just
Appearance, which is worn, then to be damaged, and without the good ability of continuing working, is thus given Seal Oil vacuum system safe and stable operation, is buried
A very big insecurity factor is descended.
Summary of the invention
The purpose of the present invention is to provide a kind of Seal Oil vacuum system non-return devices, to improve the use longevity of diaphragm seal
Life.
In order to achieve the above object, base case of the invention provides a kind of Seal Oil vacuum system non-return device, including
Pedestal, the screw rod of at least two fixations on the base, further include the diaphragm seal set gradually from bottom to top along screw rod, spring,
Limited block and nut, pedestal is equipped with the entrance being connected to vacuum system and the conduit being connected to entrance, diaphragm seal are equipped with
The first mounting hole passed through for screw rod and the first through hole for medium outflow, diaphragm seal are fastened on conduit and can be sliding along screw rod
Dynamic, limited block is equipped with the second mounting hole passed through for screw rod and for the second through-hole of medium outflow, conduit and first through hole
It is not overlapped, spring upper end offsets with limited block, and lower spring end offsets with diaphragm seal.
Compared with the prior art, the advantages of the present invention are as follows:
Medium enters inside non-return device from internal system through entrance first, accumulates in the conduit of pedestal, in vacuum pump
After pressing to it, medium pushes diaphragm seal to move out along screw rod, and at this moment medium passes through non-return device completely, passes through limited block
The second through-hole, into the pipe-line system of external world's connection, but this process be not it is continuous, because of the operation of vacuum pump
Mode causes the one of the intermittent regularity of diaphragm seal to open one and closes, so ensure that the vacuum inside the vacuum system of vacuum pump is complete
Whole property.
The present invention realizes the connection of pedestal, diaphragm seal and limited block using screw rod, while screw rod also plays diaphragm seal
Guiding role has been arrived, overall structure is simplified, has also reduced the friction area of diaphragm seal, the setting of limited block is then to prevent from sealing
Piece is detached from non-return device, while providing installation support for spring, and spring then can provide restoring force for the reset of diaphragm seal.
The simple service life that is strong, effectively raising equipment of the present invention, saves certain production cost and personnel
Maintenance cost.
Further, in a ring, screw rod is located in conduit inner ring conduit.The conduit of annular quickly flows after facilitating medium to enter
It is dynamic, while can also guarantee diaphragm seal uniform stressed.
Further, screw rod is two.While ensure that bonding strength and to the guiding performance of diaphragm seal, and it can use up
Amount reduces the setting of components, simplifies overall structure.
Further, first through hole is set is distributed there are two and about the central symmetry of diaphragm seal.Medium is substantially increased to pass through
The efficiency of diaphragm seal, while it is also possible that the media impingement power homogenization that diaphragm seal is subject to, first due to diaphragm seal installs
There are gap between hole and screw rod, this leads to diaphragm seal and spiral shell it is avoided that diaphragm seal run-off the straight under media impingement
Friction, collision aggravation between the thread of bar.
Further, the second through-hole is set is distributed there are two and about the central symmetry of limited block.Medium is substantially increased to pass through
The efficiency of limited block.
Further, it is equipped with overstriking section in the middle part of screw rod, is clearance fit between overstriking section and the first mounting hole.It greatly improves
Screw rod facilitates diaphragm seal more stable along screw slide, reduces thread and the sealing of screw rod to the guiding performance of diaphragm seal
Friction, collision between piece.
Further, the spring base for fixed spring upper end is recessed in the middle part of limited block.Facilitate the installation for realizing spring
It is fixed.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Seal Oil vacuum system non-return device embodiment of the present invention；
Fig. 2 is the structural schematic diagram of pedestal in Fig. 1；
Fig. 3 is the structural schematic diagram of diaphragm seal in a kind of Seal Oil vacuum system non-return device embodiment of the present invention.
Specific embodiment
Below by the further details of explanation of specific embodiment:
Appended drawing reference in Figure of description includes: pedestal 1, limited block 2, conduit 3, screw rod 4, the peace of diaphragm seal 5, first
Fill hole 6, first through hole 7, the second through-hole 8.
As shown in Figure 1, a kind of Seal Oil vacuum system non-return device, including 1, two spiral shell being fixed on pedestal 1 of pedestal
Bar 4, further includes the diaphragm seal 5 set gradually from bottom to top along screw rod 4, spring, limited block 2 and nut, and pedestal 1 is equipped with
The entrance being connected to vacuum system and the conduit 3 being connected to entrance, diaphragm seal 5 are equipped with the first installation passed through for screw rod 4
Hole 6 and the first through hole 7 flowed out for medium, diaphragm seal 5 are fastened on conduit 3 and can slide along screw rod 4, set on limited block 2
There are the second mounting hole passed through for screw rod 4 and the second through-hole 8 for medium outflow, conduit 3 is not be overlapped with first through hole 7, bullet
Spring upper end offsets with limited block 2, and lower spring end offsets with diaphragm seal 5.Screw rod 4 is set as two, this just ensure that connection is strong
Degree and while to the guiding performance of diaphragm seal 5, and the setting of components can be reduced to the greatest extent, simplify overall structure.
As shown in Fig. 2, conduit 3 is in a ring, screw rod 4 is located in 3 inner ring of conduit.After the conduit 3 of annular facilitates medium to enter
Quickly flowing, while can also guarantee 5 uniform stressed of diaphragm seal.As shown in figure 3, first through hole 7 set there are two and about sealing
The central symmetry of piece 5 is distributed.Medium is substantially increased by the efficiency of diaphragm seal 5, while it is also possible that diaphragm seal 5 by
Media impingement power homogenization, since there are gaps between the first mounting hole 6 and screw rod 4 of diaphragm seal 5, this is it is avoided that close
The run-off the straight under media impingement of mounting 5, and lead to friction, collision aggravation between diaphragm seal 5 and the thread of screw rod 4.
As shown in Figure 1, specifically, the second through-hole 8 is set, there are two and about the distributions of the central symmetry of limited block 2.It mentions significantly
High medium passes through the efficiency of limited block 2.It is equipped with overstriking section in the middle part of screw rod 4, matches between overstriking section and the first mounting hole 6 for gap
It closes.Screw rod 4 is greatly improved to the guiding performance of diaphragm seal 5, facilitates diaphragm seal 5 more stable and is slided along screw rod 4, is reduced
Friction, collision between the thread and diaphragm seal 5 of screw rod 4.The bullet for fixed spring upper end is recessed in the middle part of limited block 2
Spring abutment.Facilitate and realizes that the installation of spring is fixed.
Medium enters inside non-return device from internal system through entrance first, accumulates in the conduit 3 of pedestal 1, in vacuum
After pump presses to it, medium pushes diaphragm seal 5 to move out along screw rod 4, and at this moment medium passes through non-return device completely, passes through limit
Second through-hole 8 of position block 2, into the pipe-line system of external world's connection, but this process is not continuously, because of vacuum pump
The method of operation, cause the one of the intermittent regularity of diaphragm seal 5 to open one and close, inside the vacuum system that so ensure that vacuum pump
Vacuum integrity.
The connection of pedestal 1, diaphragm seal 5 and limited block 2 is realized using screw rod 4, while screw rod 4 also plays diaphragm seal 5
Arrived guiding role, simplified overall structure, also reduced the friction area of diaphragm seal 5, the setting of limited block 2 be then prevent it is close
Mounting 5 is detached from non-return device, while providing installation support for spring, and spring then can provide restoring force for the reset of diaphragm seal 5.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (7)
1. a kind of Seal Oil vacuum system non-return device, it is characterised in that: including pedestal, the spiral shell of at least two fixations on the base
Bar further includes the diaphragm seal set gradually from bottom to top along screw rod, spring, limited block and nut, and pedestal is equipped with and vacuum
The entrance of system connectivity and the conduit being connected to entrance, diaphragm seal is equipped with the first mounting hole passed through for screw rod and for being situated between
The first through hole that mass flow goes out, diaphragm seal are fastened on conduit and can be along screw slides, and limited block is equipped with the passed through for screw rod
Two mounting holes and the second through-hole flowed out for medium, conduit is not be overlapped with first through hole, and spring upper end offsets with limited block, bullet
Spring lower end offsets with diaphragm seal.
2. Seal Oil vacuum system non-return device according to claim 1, it is characterised in that: conduit in a ring, screw rod position
In conduit inner ring.
3. Seal Oil vacuum system non-return device according to claim 1 or 2, it is characterised in that: screw rod is two.
4. Seal Oil vacuum system non-return device according to claim 3, it is characterised in that: first through hole is set there are two simultaneously
Central symmetry about diaphragm seal is distributed.
5. according to claim 1,2 or 4 described in any item Seal Oil vacuum system non-return devices, it is characterised in that: second is logical
Hole is set to be distributed there are two and about the central symmetry of limited block.
6. Seal Oil vacuum system non-return device according to claim 5, it is characterised in that: be equipped with overstriking in the middle part of screw rod
Section is clearance fit between overstriking section and the first mounting hole.
7. Seal Oil vacuum system non-return device according to any one of claims 1-5, it is characterised in that: in limited block
Portion is recessed the spring base for fixed spring upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471569.9A CN110319206A (en) | 2019-05-31 | 2019-05-31 | A kind of Seal Oil vacuum system non-return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471569.9A CN110319206A (en) | 2019-05-31 | 2019-05-31 | A kind of Seal Oil vacuum system non-return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319206A true CN110319206A (en) | 2019-10-11 |
Family
ID=68119254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910471569.9A Pending CN110319206A (en) | 2019-05-31 | 2019-05-31 | A kind of Seal Oil vacuum system non-return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110319206A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB250856A (en) * | 1925-05-14 | 1926-04-22 | Thyssen & Co. Aktiengesellschaft | |
| CN2642735Y (en) * | 2003-09-25 | 2004-09-22 | 朱耀平 | Leading and automatically operating type explosion-proof door |
| CN103244722A (en) * | 2013-04-26 | 2013-08-14 | 苏州协昌环保科技股份有限公司 | Pressure-relief anti-explosion valve |
| CN203627957U (en) * | 2013-12-16 | 2014-06-04 | 东莞市微电环保科技有限公司 | Pressure valve for steam cabinet |
| CN108799570A (en) * | 2018-07-27 | 2018-11-13 | 广西玉林坤达机械制造有限责任公司 | A kind of non-return valve |
| CN108980418A (en) * | 2018-08-24 | 2018-12-11 | 江苏华太电力仪表有限公司 | A kind of check valve of the operation is stable |
-
2019
- 2019-05-31 CN CN201910471569.9A patent/CN110319206A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB250856A (en) * | 1925-05-14 | 1926-04-22 | Thyssen & Co. Aktiengesellschaft | |
| CN2642735Y (en) * | 2003-09-25 | 2004-09-22 | 朱耀平 | Leading and automatically operating type explosion-proof door |
| CN103244722A (en) * | 2013-04-26 | 2013-08-14 | 苏州协昌环保科技股份有限公司 | Pressure-relief anti-explosion valve |
| CN203627957U (en) * | 2013-12-16 | 2014-06-04 | 东莞市微电环保科技有限公司 | Pressure valve for steam cabinet |
| CN108799570A (en) * | 2018-07-27 | 2018-11-13 | 广西玉林坤达机械制造有限责任公司 | A kind of non-return valve |
| CN108980418A (en) * | 2018-08-24 | 2018-12-11 | 江苏华太电力仪表有限公司 | A kind of check valve of the operation is stable |
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|---|---|---|---|
| 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: 20191011 |
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| RJ01 | Rejection of invention patent application after publication |