CN107339476A - A kind of safety valve - Google Patents
A kind of safety valve Download PDFInfo
- Publication number
- CN107339476A CN107339476A CN201710541054.2A CN201710541054A CN107339476A CN 107339476 A CN107339476 A CN 107339476A CN 201710541054 A CN201710541054 A CN 201710541054A CN 107339476 A CN107339476 A CN 107339476A
- 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.)
- Granted
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
- 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
- F16K17/0406—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 balls
-
- 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
- F16K17/044—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 more than one spring
-
- 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
- F16K17/048—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 combined with other safety valves, or with pressure control devices
-
- 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
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
Abstract
The invention discloses a kind of safety valve, including valve body, the top cover of body top is arranged on, it is characterised in that：Install and have elastic component between top cover and the valve body upper end, the top cover can be moved up and down relative to valve body, and pressure limiting piece and sealing collar are provided with valve body, the ball float that can be moved up and down is additionally provided with valve body.The safety valve of the present invention by air inlet and exhaust valve and safe gauge valve integrated, has intake and exhaust functions and over-voltage protecting function concurrently, simple in construction, the stability of increase water delivery in pipeline system operation by using integral structure；It is easy for installation, flexible；It is easy to repair and changes.
Description
Technical field
The present invention relates to safety valve technical field, and in particular to a kind of multifunctional safe for having ventilation and overpressure protection concurrently
Valve.
Background technology
The main auxiliary device of water delivery in pipeline system is the major measure for ensureing conduit running and safety, is mainly included into row
Air valve and safety valve.Air inlet and exhaust valve is to realize Quick air-discharge when pipeline blank pipe water-filling, and when producing negative pressure in pipeline, and can is fast
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, it can play a part of preventing pipeline pneumatosis using air inlet and exhaust valve and actively eliminate water hammer.
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 in 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, manufacturing cost is high, have impact on its popularization and application in some environment such as field irrigation pipe network.
The content of the invention
For the problem of safety valve function is single in the prior art, it is an object of the invention to provide one kind have concurrently ventilation and
The safety valve of overpressure protection, by air inlet and exhaust valve and safe gauge valve integrated, have intake and exhaust functions and over-voltage protecting function concurrently.
The technical scheme is that：A kind of safety valve, including valve body, the top cover of body top is arranged on, its feature exists
In：Install and have elastic component between top cover and the valve body upper end, the top cover can move up and down relative to valve body, pacify on valve body
Equipped with pressure limiting piece and sealing collar, the ball float 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 annular.
The pressure limiting piece and the sealing collar are connected by flange and valve body.
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 screen pack.
Advantages of the present invention：
The safety valve of the present invention, by air inlet and exhaust valve and safe gauge valve integrated, has intake and exhaust functions and over-voltage protecting function concurrently, 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, pressure limiting piece of the invention can use disposable protective sheet, and can also use can nonexpondable elastic membrane
Piece, occur that only diaphragm need to be changed after destroying, you can recover its function, cost is low, is easy to repair and changes.
Brief description of the drawings
Fig. 1 is that the present invention is arranged on pipeline for operating diagram when being vented；
Fig. 2 is that the present invention is arranged on the operating diagram for sluicing during pressure release on pipeline；
Fig. 3 is the operating diagram when present invention 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 present invention.
Embodiment
As Figure 1-4, safety valve of the invention includes valve body 1, is arranged on the top cover 2 of body top, top cover 2 and valve body
Flexible member 3 just like spring etc. is installed, top cover 2 can move up and down relative to valve body 1, be installed on valve body 1 limited between 1 upper end
Tabletting 4 and sealing collar 5, the ball float 6 that can be moved up and down are additionally provided with valve body 1, valve body 1 is cylindrical, pressure limiting piece 4 and sealing collar 5
The lower section of flexible member 3 is arranged on, and is in annular, pressure limiting piece 4 and sealing collar 5 are connected by flange 7 and valve body 1,
The bottom of valve body 1 is provided with screen pack 8, and pressure limiting piece 4 is using disposable protective sheet or using the nonexpondable flexible sheet of energy.
During specific works, it is divided into such as three kinds of operating modes of Fig. 1-3, illustrates separately below：
Operating diagram when being used to be vented on pipeline is arranged on for the present invention as shown in Figure 1, in pipeline water filling process, due to
Safety valve is arranged on pipeline eminence, and the air in pipeline is discharged by the periphery of ball float 6, and after gas is drained, ball float 6 is in the floating of water
The lower motion upwards of power effect, when reaching certain operating pressure, i.e., connects with sealing collar 5, plays a part of sealing, while with dampening
The gradual increase of pressure, ball float 6 contact closer with sealing collar 5, and water-stagnating effect is better.
Operating diagram of the present invention for the pressure release that sluices on pipeline is illustrated in figure 2, is set when water pressure reaches
During standby safe pressure, ball float 6 can under the effect of the pressure, and by sealing collar 5, top is big upwards, and ball float 6 passes through sealing collar 5 and pressure limiting
Piece 4 reaches top, and now valve body 1 becomes passage of the press water to air discharge, by draining so as to reducing in pipeline
Pressure, play a part of protective conduit.Because sealing collar 5 and pressure limiting piece 4 have shrinkage, when ball float 6 reaches top, sealing
Circle 5 and pressure limiting piece 4, which restore to the original state, causes ball float 6 to stay in top, connects under flexible member 3 and Gravitative Loads with sealing collar 5, rises
To the effect of automatic water seal, excessive sluicing, pressure release are prevented.Exist in addition, another main function of flexible member 3 is constraint ball float 6
Pressure effect will not eject valve body when moving upwards, avoid causing danger to the person, add the security of equipment.Herein, should
When explanation, flexible member 3 can be any flexible member for possessing the function, such as spring.
The operating diagram when present invention is used for air inlet on pipeline is illustrated in figure 3, when valve body 1 and tube contacts
When negative pressure occurs in place, in the presence of external atmosphere pressure, ball float 6 leaves sealing collar 5 and moved downward, and the air of outside passes through ball float
6 surroundings enter in valve body, avoid 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 present invention has air inlet and exhaust valve and safe gauge valve integrated concurrently intake and exhaust functions and over-voltage protecting function, improves and is
The stability of system operation, using integral valve, not only saves built-up time, and reduces spending, easy for installation, flexible；Separately
On the one hand, pressure limiting piece of the invention can use disposable protective sheet, can also use the nonexpondable flexible sheet of energy, go out
Only diaphragm need to be changed after now destroying, you can recover its function, cost is low, is easy to repair and changes.
Embodiment described above is only that the preferred embodiment of technical solution of the present invention is described, not to this hair
Bright scope is defined, and on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to the present invention's
The various modifications and improvement that technical scheme is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (6)
1. a kind of safety valve, including valve body, it is arranged on the top cover of body top, it is characterised in that：The top cover and valve body upper end
Between install and have elastic component, the top cover can be moved 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 ball float 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 annular.
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 is connected.
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 |
|---|---|---|---|
| CN201710541054.2A CN107339476B (en) | 2017-07-05 | 2017-07-05 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541054.2A CN107339476B (en) | 2017-07-05 | 2017-07-05 | Safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107339476A true CN107339476A (en) | 2017-11-10 |
| CN107339476B CN107339476B (en) | 2023-07-07 |
Family
ID=60218541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710541054.2A Active CN107339476B (en) | 2017-07-05 | 2017-07-05 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339476B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397591A (en) * | 2018-01-29 | 2018-08-14 | 华北水利水电大学 | A kind of pressure limiting intake and exhaust integral valve |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962916A (en) * | 1961-02-28 | 1964-07-08 | Nuquip Ltd | Float for use in a pressurised chamber |
| US3726303A (en) * | 1970-04-27 | 1973-04-10 | Sykes Ltd Henry | Fluid flow control valves |
| JPH01145477A (en) * | 1987-11-30 | 1989-06-07 | Shimadzu Corp | Relief valve for protecting extremely low temperature cryogen container |
| CN2413115Y (en) * | 1999-05-21 | 2001-01-03 | 中国人民解放军后勤工程学院 | Oil depot pipeline emptying automatic intake valve |
| KR20020005187A (en) * | 2000-06-21 | 2002-01-17 | 안정구 | Full level control valve for on board refueling vapor recovery system |
| CN2475897Y (en) * | 2000-12-30 | 2002-02-06 | 苏建忠 | Leakproof combined safety valve |
| CN2573789Y (en) * | 2002-08-30 | 2003-09-17 | 高长 | Valve for water storage tank |
| US20090024258A1 (en) * | 2005-03-04 | 2009-01-22 | Seetru Limited | Safety Valve Testing |
| CN201547357U (en) * | 2009-08-14 | 2010-08-11 | 太原乐成科技有限公司 | Automatic constant pressure exhaust valve |
| CN101994858A (en) * | 2010-11-10 | 2011-03-30 | 哈尔滨工业大学 | Air valve for preventing water hammer due to cavities collapsing |
| CN202327267U (en) * | 2011-11-30 | 2012-07-11 | 杭州福朗机电科技有限公司 | Vacuum breaker valve |
| CN207333849U (en) * | 2017-07-05 | 2018-05-08 | 华北水利水电大学 | A kind of safety valve |
-
2017
- 2017-07-05 CN CN201710541054.2A patent/CN107339476B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962916A (en) * | 1961-02-28 | 1964-07-08 | Nuquip Ltd | Float for use in a pressurised chamber |
| US3726303A (en) * | 1970-04-27 | 1973-04-10 | Sykes Ltd Henry | Fluid flow control valves |
| JPH01145477A (en) * | 1987-11-30 | 1989-06-07 | Shimadzu Corp | Relief valve for protecting extremely low temperature cryogen container |
| CN2413115Y (en) * | 1999-05-21 | 2001-01-03 | 中国人民解放军后勤工程学院 | Oil depot pipeline emptying automatic intake valve |
| KR20020005187A (en) * | 2000-06-21 | 2002-01-17 | 안정구 | Full level control valve for on board refueling vapor recovery system |
| CN2475897Y (en) * | 2000-12-30 | 2002-02-06 | 苏建忠 | Leakproof combined safety valve |
| CN2573789Y (en) * | 2002-08-30 | 2003-09-17 | 高长 | Valve for water storage tank |
| US20090024258A1 (en) * | 2005-03-04 | 2009-01-22 | Seetru Limited | Safety Valve Testing |
| CN201547357U (en) * | 2009-08-14 | 2010-08-11 | 太原乐成科技有限公司 | Automatic constant pressure exhaust valve |
| CN101994858A (en) * | 2010-11-10 | 2011-03-30 | 哈尔滨工业大学 | Air valve for preventing water hammer due to cavities collapsing |
| CN202327267U (en) * | 2011-11-30 | 2012-07-11 | 杭州福朗机电科技有限公司 | Vacuum breaker valve |
| CN207333849U (en) * | 2017-07-05 | 2018-05-08 | 华北水利水电大学 | A kind of safety valve |
Non-Patent Citations (1)
| Title |
|---|
| 吴德荣, vol. 1, 华东理工大学出版社, pages: 190 - 193 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397591A (en) * | 2018-01-29 | 2018-08-14 | 华北水利水电大学 | A kind of pressure limiting intake and exhaust integral valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107339476B (en) | 2023-07-07 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |