CN104948789A - Pressure relief device - Google Patents
Pressure relief device Download PDFInfo
- Publication number
- CN104948789A CN104948789A CN201410114891.3A CN201410114891A CN104948789A CN 104948789 A CN104948789 A CN 104948789A CN 201410114891 A CN201410114891 A CN 201410114891A CN 104948789 A CN104948789 A CN 104948789A
- Authority
- CN
- China
- Prior art keywords
- pressure relief
- absorbent strip
- magnetism absorbent
- relief plate
- chute
- 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
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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
-
- 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
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Safety Valves (AREA)
Abstract
A pressure relief device comprises a main inflation part and a pressure relief plate. The main inflation part is provided with a pressure relief port communicated with the outside. The end, used for making contact with the outside, of the pressure relief port is a communicating end, and the other end of the pressure relief port is a free end. The side, used for making contact with the outside, of the main inflation part is provided with a first magnetic strip which is located below the pressure relief port. The pressure relief plate seals the communicating end. The upper end of the pressure relief plate is rotatably connected with the part, located above the pressure relief port, of the main inflation part. The part, overlapped with the first magnetic strip, of the pressure relief plate is provided with a second magnetic strip. The second magnetic strip and the first magnetic strip attract each other. The pressure relief device has the high accuracy rate and can achieve large air flow pressure relief.
Description
Technical field
The present invention relates to pressure release technical field, particularly relate to a kind of pressure relief device.
Background technique
When there is draught head inside and outside large volume seal space or passage (such as, pneumatic membrane building), for ensureing safety, need pressure difference to limit within the specific limits.Traditional pressure relief device air displacement is too little, is not suitable for this type of situation.Existing large volume seal space or passage employing control electronics limit the draught head inside and outside it.But control electronics exists certain fault rate, once its control system breaks down may bring very large potential safety hazard.
Summary of the invention
Based on this, be necessary to provide a kind of accuracy rate higher and the pressure relief device that can realize Wind Volume pressure release.
A kind of pressure relief device, comprising:
Inflation main part, has the pressure relief opening be in communication with the outside, and described pressure relief opening is used for holding for being communicated with one end of extraneous contact, and the other end is free end; Described inflation main part is used for being provided with the first magnetism absorbent strip with the side of extraneous contact, and described first magnetism absorbent strip is positioned at below described pressure relief opening; And
Pressure relief plate, seal described connection end, one end above described pressure relief plate is positioned at and the described position of inflation main body section above described pressure relief opening are rotatably connected, the described pressure relief plate part place overlapping with described first magnetism absorbent strip is provided with the second magnetism absorbent strip, described second magnetism absorbent strip and described first magnetism absorbent strip adhesive.
Wherein in an embodiment, also comprise and be located at the Stamping Steel Ribbon of described pressure relief plate near the side of described pressure relief opening, described Stamping Steel Ribbon and described second magnetism absorbent strip coordinate and are formed and the described seal ring being communicated with the bore held and coordinating, and described seal ring abuts with the described inwall held that is communicated with.
Wherein in an embodiment, the bore of described free end is less than the described bore being communicated with end.
Wherein in an embodiment, the described end face being communicated with end face and the described free end held is rectangular; Described connection end is obliquely installed towards described free end, and the described distance be communicated with between the end face of end and the end face of described free end increases from top to down gradually.
Wherein in an embodiment, described inflation main part and the described pressure relief plate place of being rotatably connected are provided with the bolt for Fixed hinge, and described pressure relief plate is rotatably connected by hinge and described bolt and described inflation main part.
Wherein in an embodiment, also comprise and be located at described pressure relief plate away from the chute on the side of described pressure relief opening and be located at for carrying additionally the connecting rod of counterweight in described chute, described connecting rod along described chute axially slidably.
Wherein in an embodiment, described pressure relief plate is cuboid shape, and described chute is positioned at described pressure relief plate one end near described second magnetism absorbent strip, and described chute is positioned on the center line of described pressure relief plate; Wherein, described central axis in the upper end of described pressure relief plate and lower end, and crosses the center of described pressure relief plate.
Wherein in an embodiment, one end that described connecting rod is arranged in described chute has stepped part, and one end that described connecting rod is positioned at outside described chute is locked by the inwall of housing pin by described stepped part and described chute.
Wherein in an embodiment, also comprise the unidirectional thermometer screen being located at described free end.
Wherein in an embodiment, described first magnetism absorbent strip is magnetic stripe or iron bar, and described second magnetism absorbent strip is magnetic stripe; Or described first magnetism absorbent strip is magnetic stripe, described second magnetism absorbent strip is iron bar.
The working principle of above-mentioned pressure relief device is: when inflation main part and extraneous draught head are within the scope of setting pressure, the first magnetism absorbent strip and the second magnetism absorbent strip are in attracting state, and pressure relief opening is sealed by pressure relief plate; Wherein, setting pressure is that the moment that produced by pressure relief plate and the suction-combining force between the second magnetism absorbent strip and the first magnetism absorbent strip determine jointly.When inflation main part exceedes setting pressure with extraneous draught head, the first magnetism absorbent strip is separated with the second magnetism absorbent strip, and the magnetic force between it reduces to zero, and pressure relief plate can upwards be dug under the influence of air pressure, and inflation main part is in communication with the outside by pressure relief opening, starts pressure release.Wherein, when the equalising torque that the air pressure inflated in main part produces the moment of pressure relief plate effect and pressure relief plate, pressure relief plate is parked in fixed position.When inflating the air pressure in main part and being reduced to setting pressure gradually, the moment of air pressure to pressure relief plate effect in inflation main part is less than the moment that pressure relief plate produces, pressure relief plate falls after rise, when entering magnetic force scope, pressure relief plate returns to original state under the adhesive effect of self moment loading and the second magnetism absorbent strip and the first magnetism absorbent strip, and pressure release terminates.
Above-mentioned pressure relief device is opened pressure release and is determined, without the need to using control electronics to realize releasing pressure automatically, to have higher accuracy rate by self with end pressure release.And when pressure release, the degree that pressure relief plate is upwards dug is determined the moment that the moment of pressure relief plate effect and pressure relief plate produce by the air pressure inflated in main part, thus makes above-mentioned pressure relief device can realize Wind Volume pressure release, and air displacement is large.
The suction-combining force between second magnetism absorbent strip to the first magnetism absorbent strip is relevant with its length, therefore, by selecting the second magnetism absorbent strip and first magnetism absorbent strip of different length, can obtain the pressure relief device with different set pressure, to meet different application demands.Due to the second magnetism absorbent strip and the first magnetism absorbent strip distance, more early work is firmly larger, therefore, setting pressure is greater than clossing pressure all the time, thus effectively can avoid the problem because the air pressure in inflation main part causes pressure relief plate frequently to be opened close to setting pressure, and then increase the stability that above-mentioned pressure relief device controls pressure release.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pressure relief device of a mode of execution;
Fig. 2 is the structural representation of the pressure relief plate after assembling in Fig. 1.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, pressure relief device of the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can multiple different form realize, and is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figures 1 and 2, the pressure relief device 10 of a mode of execution, comprises inflation main part 100, pressure relief plate 200, Stamping Steel Ribbon 300, chute 400, connecting rod 500, counterweight 600 and unidirectional thermometer screen 700.
Inflation main part 100 has the pressure relief opening 110 be in communication with the outside.Pressure relief opening 110 for one end of extraneous contact for being communicated with end 112, the other end is free end 114.Inflation main part 100 is for being provided with the first magnetism absorbent strip 120, in the vertical direction with the side of extraneous contact, and the first magnetism absorbent strip 120 is positioned at below pressure relief opening 110.Wherein, free end 114 is high voltage terminal, and being communicated with end 112 is low voltage terminal.
In the present embodiment, inflating main part 100 is pneumatic membrane building.Be appreciated that in other embodiments, inflate large volume seal space or passage that main part 100 also can be other.
In the present embodiment, the bore of free end 114 is less than the bore being communicated with end 112, thus is convenient to quick pressure releasing.Be appreciated that in other embodiments, the bore at pressure relief opening 110 two ends can be identical.
Further, in the present embodiment, the connection end face of end 112 and the end face of free end 112 are rectangular, thus are convenient to pressure relief opening 110 machine shaping.Be appreciated that in other embodiments, the end face at pressure relief opening 110 two ends also can be regular hexagon etc.
Further, in the present embodiment, be communicated with end 112 and be obliquely installed towards free end 114, and the distance be communicated with between the end face of end 112 and the end face of free end 114 increases from top to down gradually.Thus the situation that pressure relief plate 200 upwards digs under the influence of air pressure can better be controlled.
Pressure relief plate 200 seals the connection end 112 of pressure relief opening 110.In the vertical direction, the position that the one end above pressure relief plate 200 is positioned at is positioned at above pressure relief opening 110 with inflation main part 110 is rotatably connected.The pressure relief plate 200 part place overlapping with the first magnetism absorbent strip 120 is provided with the second magnetism absorbent strip 210.Second magnetism absorbent strip 210 and the first magnetism absorbent strip 120 adhesive.In the present embodiment, pressure relief plate 200 is cuboid shape.
In the present embodiment, the side near inflation main part 100 that pressure relief plate 200 is positioned at one end of top is provided with hinge 220, and inflation main part 100 position be positioned at above pressure relief opening 110 is provided with the bolt (figure does not mark) for Fixed hinge 220.Pressure relief plate 200 is rotatably connected by hinge 220 and bolt and inflation main part 100.Be appreciated that in other embodiments, pressure relief plate 200 also can be rotatably connected with inflation main part 100 by pin etc.
In the present embodiment, the first magnetism absorbent strip 120 and the second magnetism absorbent strip 210 are magnetic stripe.Be appreciated that in other embodiments, the one in the first magnetism absorbent strip 120 and the second magnetism absorbent strip 210 is magnetic stripe, and another one is iron bar.
Stamping Steel Ribbon 300 is located at pressure relief plate 200 on the side of pressure relief opening 110.Stamping Steel Ribbon 300 coordinates with the second magnetism absorbent strip 210 seal ring being formed and coordinate with the bore being communicated with end 112.Seal ring abuts with the inwall being communicated with end 112, coordinates to seal further to be communicated with end 112 with pressure relief plate 200.Be appreciated that in other embodiments, can form seal ring by Stamping Steel Ribbon 300, seal ring and the second magnetism absorbent strip 210 are two independently parts.
Chute 400 is located on the side of pressure relief plate 200 away from pressure relief opening 110.Connecting rod 500 is located in chute 400, for carrying additionally counterweight 600.Thus the moment of pressure relief plate 200 generation can be changed by the counterweight 600 carrying additionally Different Weight on pressure relief plate 200, and then adjustment setting pressure.
Further, in the present embodiment, connecting rod 500 along chute 400 axially slidably.Thus by the adjustment position of connecting rod 500 in chute 400, also namely by changing counterweight 600 and the relative position of pressure relief plate 200, to change the moment that pressure relief plate 200 produces, and then setting pressure can be adjusted further.
Further, in the present embodiment, connecting rod 500 one end be arranged in chute 400 has stepped part (not shown), and the inwall of stepped part and chute 400 is locked by one end housing pin that connecting rod 500 is positioned at outside chute 400.Simultaneously housing pin is with floor clip, to prevent housing pin aging because using for a long time, occurs that housing pin relaxes the problem causing connecting rod 500 position to slide.
Further, in order to make the weight distribution of pressure relief plate 200 relatively even, in the present embodiment, chute 400 is positioned at pressure relief plate 200 one end near the second magnetism absorbent strip 210, and chute 400 is positioned on the center line of pressure relief plate 200.Wherein.Central axis in the upper end of pressure relief plate 200 and lower end, and crosses the center of pressure relief plate 200.
Further, in the present embodiment, in the vertical direction, chute 400 is positioned on the second magnetism absorbent strip 210, vertically with the second magnetism absorbent strip 210 arranges.
Free end 114 place is located at by unidirectional thermometer screen 700, thus effectively prevents the foreign matter inflated in main part 100 from entering Stamping Steel Ribbon 300 position place in pressure relief opening 110, reduces the probability of causing trouble because of sealing effect difference.
The working principle of above-mentioned pressure relief device 10 is: when inflation main part 100 and extraneous draught head are within the scope of setting pressure, the first magnetism absorbent strip 120 and the second magnetism absorbent strip 210 are in attracting state, and pressure relief opening 110 is sealed by pressure relief plate 200; Wherein, setting pressure is that the moment that produced by pressure relief plate 200 and the suction-combining force between the second magnetism absorbent strip 210 and the first magnetism absorbent strip 120 determine jointly.When inflation main part 100 exceedes setting pressure with extraneous draught head, first magnetism absorbent strip 120 is separated with the second magnetism absorbent strip 210, and the magnetic force between it reduces to zero, and pressure relief plate 200 can upwards be dug under the influence of air pressure, inflation main part 100 is in communication with the outside by pressure relief opening 110, starts pressure release.Wherein, when inflating moment that the air pressure in main part 100 acts on pressure relief plate 200 and the equalising torque that pressure relief plate 200 produces, pressure relief plate 200 is parked in fixed position.When inflating the air pressure in main part 100 and being reduced to setting pressure gradually, air pressure in inflation main part 100 is less than the moment of pressure relief plate 200 generation to the moment that pressure relief plate 200 acts on, pressure relief plate 200 falls after rise, when entering magnetic force scope, pressure relief plate 200 returns to original state under the adhesive effect of self moment loading and the second magnetism absorbent strip 210 and the first magnetism absorbent strip 120, and pressure release terminates.
Above-mentioned pressure relief device 10 is opened pressure release and is determined, without the need to using control electronics to realize releasing pressure automatically, to have higher accuracy rate by self with end pressure release.And when pressure release, the moment that pressure relief plate 200 degree of upwards digging is acted on pressure relief plate 200 by the air pressure inflated in main part 100 and the moment that pressure relief plate 200 produces determine, thus make above-mentioned pressure relief device 10 can realize Wind Volume pressure release, and air displacement is large.
The suction-combining force between second magnetism absorbent strip 210 to the first magnetism absorbent strip 120 is relevant with its length, therefore, by selecting the second magnetism absorbent strip 210 and the first magnetism absorbent strip 120 of different length, the pressure relief device with different set pressure can be obtained, to meet different application demands.Can by carrying additionally the counterweight 600 of Different Weight, the mode such as relative position of adjustment counterweight 600 and pressure relief plate 200 changes the moment that pressure relief plate 200 produces, and then adjusts setting pressure further.Because the second magnetism absorbent strip 210 and the first magnetism absorbent strip 120 are apart from more early work is firmly larger, therefore, setting pressure is greater than clossing pressure all the time, thus effectively can avoid the problem because the air pressure in inflation main part 100 causes pressure relief plate 200 frequently to be opened close to setting pressure, and then increase the stability that above-mentioned pressure relief device controls pressure release.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a pressure relief device, is characterized in that, comprising:
Inflation main part, has the pressure relief opening be in communication with the outside, and described pressure relief opening is used for holding for being communicated with one end of extraneous contact, and the other end is free end; Described inflation main part is used for being provided with the first magnetism absorbent strip with the side of extraneous contact, and described first magnetism absorbent strip is positioned at below described pressure relief opening; And
Pressure relief plate, seal described connection end, one end above described pressure relief plate is positioned at and the described position of inflation main body section above described pressure relief opening are rotatably connected, the described pressure relief plate part place overlapping with described first magnetism absorbent strip is provided with the second magnetism absorbent strip, described second magnetism absorbent strip and described first magnetism absorbent strip adhesive.
2. pressure relief device according to claim 1, it is characterized in that, also comprise and be located at the Stamping Steel Ribbon of described pressure relief plate near the side of described pressure relief opening, described Stamping Steel Ribbon and described second magnetism absorbent strip coordinate and are formed and the described seal ring being communicated with the bore held and coordinating, and described seal ring abuts with the described inwall held that is communicated with.
3. pressure relief device according to claim 1, is characterized in that, the bore of described free end is less than the described bore being communicated with end.
4. pressure relief device according to claim 3, is characterized in that, the described end face being communicated with end face and the described free end held is rectangular; Described connection end is obliquely installed towards described free end, and the described distance be communicated with between the end face of end and the end face of described free end increases from top to down gradually.
5. pressure relief device according to claim 1, is characterized in that, described inflation main part and the described pressure relief plate place of being rotatably connected are provided with the bolt for Fixed hinge, and described pressure relief plate is rotatably connected by hinge and described bolt and described inflation main part.
6. pressure relief device according to claim 1, is characterized in that, also comprises and is located at described pressure relief plate away from the chute on the side of described pressure relief opening and be located at for carrying additionally the connecting rod of counterweight in described chute, described connecting rod along described chute axially slidably.
7. pressure relief device according to claim 6, is characterized in that, described pressure relief plate is cuboid shape, and described chute is positioned at described pressure relief plate one end near described second magnetism absorbent strip, and described chute is positioned on the center line of described pressure relief plate; Wherein, described central axis in the upper end of described pressure relief plate and lower end, and crosses the center of described pressure relief plate.
8. pressure relief device according to claim 6, is characterized in that, one end that described connecting rod is arranged in described chute has stepped part, and one end that described connecting rod is positioned at outside described chute is locked by the inwall of housing pin by described stepped part and described chute.
9. pressure relief device according to claim 1, is characterized in that, also comprises the unidirectional thermometer screen being located at described free end.
10. pressure relief device according to claim 1, is characterized in that, described first magnetism absorbent strip is magnetic stripe or iron bar, and described second magnetism absorbent strip is magnetic stripe; Or described first magnetism absorbent strip is magnetic stripe, described second magnetism absorbent strip is iron bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114891.3A CN104948789B (en) | 2014-03-25 | 2014-03-25 | Pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114891.3A CN104948789B (en) | 2014-03-25 | 2014-03-25 | Pressure relief device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948789A true CN104948789A (en) | 2015-09-30 |
| CN104948789B CN104948789B (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410114891.3A Active CN104948789B (en) | 2014-03-25 | 2014-03-25 | Pressure relief device |
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| CN (1) | CN104948789B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679182A (en) * | 2017-01-09 | 2017-05-17 | 广东万家乐燃气具有限公司 | Detonation-free balanced type gas water heater |
| CN106742892A (en) * | 2016-11-23 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of pressure relief opening for container data center |
| CN107120021A (en) * | 2017-05-26 | 2017-09-01 | 欧必翼门控科技(北京)有限公司 | Horizontal sliding door control method and horizontal sliding door |
| CN111050876A (en) * | 2017-09-01 | 2020-04-21 | 蒂森克虏伯比尔斯坦有限公司 | Filter device and fastening device comprising a filter device of this type |
| CN112959075A (en) * | 2021-02-04 | 2021-06-15 | 陈增法 | Turning and polishing integrated machine for numerical control machining |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100003299A1 (en) * | 2021-02-15 | 2022-08-15 | Fruit Control Equipments Srl | SAFETY SYSTEM TO PRESERVE THE STRUCTURAL INTEGRITY OF A PLANT FOR THE PRESERVATION OF PRODUCTS IN PARTICULAR FRUIT AND VEGETABLES IN A CONTROLLED ATMOSPHERE |
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| CN106742892A (en) * | 2016-11-23 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of pressure relief opening for container data center |
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| CN104948789B (en) | 2019-09-20 |
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| CB02 | Change of applicant information |
Address after: The central Shenzhen city of Guangdong Province, 518000 Keyuan Road, Nanshan District science and Technology Park No. 15 Kexing Science Park Building 2 unit B floor 12 No. 3 Applicant after: SHENZHEN BRAODWELL ENVIRONMENT PROTECTION TECHNOLOGY CO., LTD. Address before: The central Shenzhen city of Guangdong Province, 518000 Keyuan Road, Nanshan District science and Technology Park No. 15 Kexing Science Park Building 2 unit B floor 12 No. 3 Applicant before: Broadwell (Shenzhen) Technology Co., Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 b1-603, building B, Kexing Science Park, 15 Keyuan Road, Science Park community, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: BROADWELL (SHENZHEN) TECHNOLOGY Co.,Ltd. Address before: 518000 Guangdong science and Technology Park, Shenzhen, Nanshan District, science and Technology Park, 15 Kexing Science Park, 2 B unit 12, 3 Patentee before: BROADWELL (SHENZHEN) TECHNOLOGY Co.,Ltd. |