CN207333849U - A kind of safety valve - Google Patents
A kind of safety valve Download PDFInfo
- Publication number
- CN207333849U CN207333849U CN201720803972.3U CN201720803972U CN207333849U CN 207333849 U CN207333849 U CN 207333849U CN 201720803972 U CN201720803972 U CN 201720803972U CN 207333849 U CN207333849 U CN 207333849U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- safety valve
- limiting piece
- pressure limiting
- 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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Abstract
The utility model discloses a kind of safety valve, including valve body, the head cover of body top is arranged on, it is characterised in that：Install and have elastic component between head cover and the valve body upper end, the head cover can move up and down relative to valve body, and pressure limiting piece and sealing collar are provided with valve body, the floating ball that can be moved up and down is additionally provided with valve body.The safety valve of the utility model by air inlet and exhaust valve and safe gauge valve integrated, has intake and exhaust functions and over-voltage protecting function concurrently, simple in structure, the stability of increase water delivery in pipeline system operation by using integral structure；It is easy for installation, flexible；Easy to repair and replacement.
Description
Technical field
It the utility model is related to safety valve technical field, and in particular to a kind of multi-functional peace for having ventilation and overpressure protection concurrently
Full valve.
Background technology
The main auxiliary device of water delivery in pipeline system is the major measure for ensureing conduit running and safety, main to include into row
Air valve and safety valve.Air inlet and exhaust valve is to realize Quick air-discharge when pipeline blank pipe water-filling, again can be fast when producing negative pressure in pipeline
Fast air inlet, and the air inlet-and-exhaust device for the micro-air that can assemble under operating pressure in discharge line, drain after gas have it is automatic
Water shutoff function, can play the role of preventing pipeline pneumatosis and actively eliminate water hammer using air inlet and exhaust valve.
The effect of safety valve mainly ensure pipeline operating pressure it is abnormal and when there is accident to pipeline and equipment actively
Protection.The opening and closing element of safety valve is generally in normally off, when the pressure medium in equipment or pipeline increases to over setting,
The opening and closing element of safety valve opens, and discharge medium prevents that pressure medium exceedes setting in pipeline or equipment to outside system.Safety
Valve belongs to automatic valve class, is mainly used for boiler, on pressure vessels and pipes, control pressure is no more than setting, to personal safety
Important protective effect has been run with equipment.
In the prior art, air inlet and exhaust valve and safety valve are typically two valve members, and Each performs its own functions, works respectively, add and are
The unreliable degree of system operation, while system equipment installation and operation and maintenance cost are also increased, in addition, two valve member structures are answered
Miscellaneous, manufacture is of high cost, have impact on its popularization and application in some environment such as field irrigation pipe network.
Utility model content
For the problem of safety valve function is single in the prior art, had concurrently the purpose of this utility model is to provide one kind logical
The safety valve of gas and overpressure protection, by air inlet and exhaust valve and safe gauge valve integrated, has intake and exhaust functions and over-voltage protecting function concurrently.
The technical solution of the utility model is：A kind of safety valve, including valve body, are arranged on the head cover of body top, it is special
Sign is：Install and have elastic component between head cover and the valve body upper end, the head cover can move up and down relative to valve body, valve body
On pressure limiting piece and sealing collar are installed, the floating ball that can be moved up and down is additionally provided with valve body.
The valve body is cylindrical, and the pressure limiting piece and the sealing collar are arranged on the lower section of the flexible member, and
In circular ring shape.
The pressure limiting piece and the sealing collar are connected fixation with valve body by flange.
The pressure limiting piece uses disposable protective sheet.
The pressure limiting piece is using the nonexpondable flexible sheet of energy.
The valve body lower portion is provided with filter screen.
The advantages of the utility model：
The safety valve of the utility model, by air inlet and exhaust valve and safe gauge valve integrated, has intake and exhaust functions and overvoltage protection concurrently
Function, improves the stability of system operation, using integral valve, not only saves built-up time, and reduces spending, installation
It is convenient, flexible；On the other hand, the pressure limiting piece of the utility model can use disposable protective sheet, and can also use can be repeatedly
The flexible sheet used, occurs only needing to change diaphragm after destroying, you can recovers its function, cost is low, easy to repair and replacement.
Brief description of the drawings
Fig. 1 is that the utility model is installed on pipeline for operating diagram when being vented；
Fig. 2 is that the utility model is installed on the operating diagram for sluicing during pressure release on pipeline；
Fig. 3 is operating diagram when the utility model is used for air inlet on pipeline；
Fig. 4 is the pressure limiting piece and the attachment structure schematic diagram of sealing collar and valve body of the utility model.
Embodiment
As shown in Figs 1-4, the safety valve of the utility model includes valve body 1, is arranged on the head cover 2 of body top, head cover 2 with
Flexible member 3 just like spring etc. is installed, head cover 2 can move up and down relative to valve body 1, be installed on valve body 1 between 1 upper end of valve body
Limited tabletting 4 and sealing collar 5, are additionally provided with the floating ball 6 that can be moved up and down in valve body 1, valve body 1 is cylindrical, pressure limiting piece 4 and sealing
Circle 5 is arranged on the lower section of flexible member 3, and is in that circular ring shape, pressure limiting piece 4 and sealing collar 5 are connected admittedly by flange 7 with valve body 1
Fixed, 1 lower part of valve body is provided with filter screen 8, and pressure limiting piece 4 is using disposable protective sheet or using the nonexpondable elastic membrane of energy
Piece.
During specific works, it is divided into such as three kinds of operating modes of Fig. 1-3, illustrates separately below：
It is installed on as shown in Figure 1 for the utility model for operating diagram when being vented on pipeline, in pipeline water-filling mistake
Cheng Zhong, since safety valve is installed on pipeline eminence, the air in pipeline is discharged by the periphery of floating ball 6, after gas is drained, floating ball
6 move upwards under the buoyancy of water, when reaching certain operating pressure, i.e., connect with sealing collar 5, play the role of sealing,
At the same time with the gradual increase of water pressure, floating ball 6 contacts closer with sealing collar 5, and water-stagnating effect is better.
Operating diagram of the utility model for the pressure release that sluices on pipeline is illustrated in figure 2, when water pressure reaches
To equipment safe pressure when, floating ball 6 can under the effect of the pressure, and by sealing collar 5, top is big upwards, and floating ball 6 passes through 5 He of sealing collar
Pressure limiting piece 4 reaches top, and valve body 1 becomes passage of the pressure water to air discharge at this time, by draining so as to reduce pipeline
Interior pressure, plays the role of protective conduit.Since sealing collar 5 and pressure limiting piece 4 have shrinkage, when floating ball 6 reaches top,
Sealing collar 5 and pressure limiting piece 4 restore to the original state so that floating ball 6 stays in top, under flexible member 3 and Gravitative Loads with 5 phase of sealing collar
Connect, play the role of automatic water seal, prevent excessive sluicing, pressure release.In addition, another main function of flexible member 3 is that constraint is floating
Ball 6 will not eject valve body when pressure acts on movement upwards, avoid causing danger to the person, add the security of equipment.This
Place, it should be noted that flexible member 3 can be any flexible member for possessing the function, such as spring.
Operating diagram when the utility model is used for air inlet on pipeline is illustrated in figure 3, when valve body 1 and pipeline
When negative pressure occurs in contact position, under the action of external atmosphere pressure, floating ball 6 leaves sealing collar 5 and moves downward, and the air of outside passes through
6 surrounding of floating ball enters in valve body, avoids destruction caused by negative pressure in pipeline.
It should be noted that on mounting means, the safety valve described in this patent may be mounted on pipeline i.e. pipe above formula
Installation, can also be connected i.e. bypass type installation by the way of bypass with pipeline, and the above is various when being installed mainly for pipe above formula
The operation principle of operating mode illustrates, and the operation principle of various operating modes is similar when bypass type is installed, and repeats no more.
The utility model has air inlet and exhaust valve and safe gauge valve integrated concurrently intake and exhaust functions and over-voltage protecting function, improves
The stability of system operation, using integral valve, not only saves built-up time, and reduces spending, easy for installation, clever
It is living；On the other hand, the pressure limiting piece of the utility model can use disposable protective sheet, and can also use can nonexpondable bullet
Property diaphragm, occur only needing to change diaphragm after destroying, you can recover its function, cost is low, easy to repair and replace.
Embodiment described above is only that the preferred embodiment of technical solutions of the utility model is described, and is not pair
The scope of the utility model is defined, on the premise of the spirit of the design of the utility model is not departed from, ordinary skill people
The various modifications and improvement, the claims that should all fall into the utility model that member makes the technical solution of the utility model are true
In fixed protection domain.
Claims (6)
1. a kind of safety valve, including valve body, are arranged on the head cover of body top, it is characterised in that：The head cover and valve body upper end
Between install and have elastic component, the head cover can move up and down relative to valve body, and pressure limiting piece and sealing collar, valve are provided with valve body
It is additionally provided with the floating ball that can be moved up and down in vivo.
2. safety valve according to claim 1, it is characterised in that：The valve body is cylindrical, the pressure limiting piece and described
Sealing collar is arranged on the lower section of the flexible member, and is in circular ring shape.
3. safety valve according to claim 2, it is characterised in that：The pressure limiting piece and the sealing collar pass through flange and valve
Body connection is fixed.
4. according to the safety valve described in claim 1-3 any one, it is characterised in that：The pressure limiting piece is using disposable anti-
Bluff piece.
5. according to the safety valve described in claim 1-3 any one, it is characterised in that：The pressure limiting piece use can be used for multiple times
Flexible sheet.
6. according to the safety valve described in claim 1-3 any one, it is characterised in that：The valve body lower portion is provided with filtering
Net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720803972.3U CN207333849U (en) | 2017-07-05 | 2017-07-05 | A kind of safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720803972.3U CN207333849U (en) | 2017-07-05 | 2017-07-05 | A kind of safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333849U true CN207333849U (en) | 2018-05-08 |
Family
ID=62425887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720803972.3U Active CN207333849U (en) | 2017-07-05 | 2017-07-05 | A kind of safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339476A (en) * | 2017-07-05 | 2017-11-10 | 华北水利水电大学 | A kind of safety valve |
-
2017
- 2017-07-05 CN CN201720803972.3U patent/CN207333849U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339476A (en) * | 2017-07-05 | 2017-11-10 | 华北水利水电大学 | A kind of safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220616 Address after: 301802 No. 5 road, Jiuyuan Industrial Park, Baodi District, Tianjin Patentee after: BENSV VALVE STOCK Co.,Ltd. Address before: 450011, No. 36, North Ring Road, Jinshui District, Henan, Zhengzhou Patentee before: NORTH CHINA University OF WATER RESOURCES AND ELECTRIC POWER |