CN203641592U - Anti-freezing pressure type vacuum circuit breaker valve - Google Patents
Anti-freezing pressure type vacuum circuit breaker valve Download PDFInfo
- Publication number
- CN203641592U CN203641592U CN201420031631.5U CN201420031631U CN203641592U CN 203641592 U CN203641592 U CN 203641592U CN 201420031631 U CN201420031631 U CN 201420031631U CN 203641592 U CN203641592 U CN 203641592U
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- Prior art keywords
- valve
- type vacuum
- pressure type
- suction
- check valve
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- 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.)
- Expired - Lifetime
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- 238000007710 freezing Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 abstract description 5
- 230000001186 cumulative effect Effects 0.000 description 4
- 235000012206 bottled water Nutrition 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000003894 drinking water pollution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses an anti-freezing pressure type vacuum circuit breaker valve which comprises a valve, a water inlet, a water outlet, an air inlet, a check valve assembly, an air inlet valve assembly, an anti-freezing device, a valve bonnet and a cap. The anti-freezing pressure type vacuum circuit breaker valve is characterized in that the check valve assembly comprises a support, a check valve element, a sealing pad, a spring and a limiting strip; the air inlet valve assembly comprises an air inlet valve element, a sealing pad and the cap, the sealing pad of the air inlet valve assembly is made of rubber and is provided with two circles of annular protrusions, the outer circle of annular protrusion is higher than the inner circle of annular protrusion, and a small notch is formed in the outer circle of annular protrusion. The anti-freezing pressure type vacuum circuit breaker valve has the advantages that the anti-freezing device is arranged on the air inlet valve element and can be switched on to drain water when the pressure of the inside of a cavity is increased due to freezing of water in pipelines in cold winters, accordingly, the pressure of the cavity can keep within a certain range, and the anti-freezing pressure type vacuum circuit breaker valve and the pipelines can be prevented from being broken.
Description
Technical field
The utility model relates to a kind of anti-freezing pressure type vacuum breaker.
Background technique
Due to in water supply system because the reason such as cut off the water often easily produces vacuum or lower than barometric pressure, causes the water siphon backflow phenomenon in pipe-line system, severe patient may cause the pollution of water supply system.Prior art pressure type vacuum shut-off valve, by destroying the mode of vacuum, prevents the in the situation that of siphon, and the impure water after valve flows back to and in potable water system, causes drinking water pollution.But in cold area, after temperature drops to below 0 ℃, in valve cavity, have in the situation of hydraulic pressure, liquid water in cavity can become ice gradually, it is large that its volume also becomes thereupon, becomes large volume, will inevitably cause this to continue to rise with the pressure in the valve of certain pressure closed at both ends.Because the each positional parameter of valve is not quite similar, the icing speed in each position is often inconsistent, therefore, along with the increase gradually of the degree of freezing, ice cube volume increases the lasting cumulative of effect, more and more pressure being passed over by other positions will be born in the slower position of icing rate, and in the time that pressure is added to the pressure that valve can bear, breaking just appears in this valve.
Summary of the invention
Technical problem to be solved in the utility model is the present situation for prior art, and a kind of Novel anti-freezing pressure type vacuum shut-off valve that can prevent in cold snap bursting by freezing is provided.
The utility model solves the problems of the technologies described above and the technological scheme that adopts is: a kind of anti-freezing pressure type vacuum breaker, comprise valve body, water intake, water outlet, suction port, check valve assembly, suction valve assembly, anti-icer, bonnet and cover cap, it is characterized in that: described check valve assembly comprises support, check valve spool, sealing gasket, spring and positive stop strip, check valve receptacle is arranged on support, sealing gasket is arranged on check valve spool, spring is arranged between check valve spool and positive stop strip, spring keeps down check valve spool to contact with check valve receptacle to keep water intake to be closed, between support and valve body, be provided with O shape circle.
As improvement, described suction valve comprises suction valve spool, sealing gasket and cover cap, suction valve valve seat is arranged on bonnet, and sealing gasket adopts rubber to be made, and has two circle annular protrusions, outer ring is higher than inner ring, on outer ring, have a small gap, under the effect of the resiliently deformable of sealing gasket self, suction valve spool is kept down and depart from suction valve valve seat, make suction port keep air-suction state, anti-icer is arranged in suction valve spool.
When changing, described anti-icer is made up of suction valve spool, steel ball, spring and plug, and suction valve spool adopts has the material polypropylene of some strength and toughness to make, and steel ball and spring all adopt 304 stainless steel materials, and plug adopts brass material; Between plug and suction valve spool, adopt ultrasonic welding to fix.
As improvement, described positive stop strip is arranged in support, prevents from mutually interfering between safety check and suction valve.
As improvement, described bonnet is threaded in the top of valve body, is provided with O type circle between bonnet and valve body.
As improvement, the top cover of described valve body has cover cap, and this cover cap utilizes Philip's head screw to be connected with the top of bonnet.
Compared with prior art, the utility model has the advantage of: on upper coiling, be provided with anti-icer, winter, when cold, pipeline water was from freezing inward outward, ice starts to form and expand, and produce pressure accumulatedly, when pressure is cumulative while reaching certain numerical value, in valve cavity, act on the spring force that pressure on steel ball exceedes top, anti-icer is opened draining, make pressure in cavity can not continue to rise or cumulative, remain within the scope of certain pressure, thereby preventing that valve and pipeline from producing breaks.
Accompanying drawing explanation
Structure sectional view when Fig. 1 is the utility model valve opening.
Structure sectional view when Fig. 2 is the utility model valve closing.
Fig. 3 is the structure sectional view of anti-icer described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
An anti-freezing pressure type vacuum breaker as described in Figure 1, comprises valve body 1, water intake 2, water outlet 3, suction port 4, check valve assembly 5, suction valve assembly 6, anti-icer 7, bonnet 8 and cover cap 9; Described check valve assembly 5 comprises support 51, check valve spool 52, sealing gasket 53, spring 54 and positive stop strip 55, check valve receptacle 511 is arranged on support 51, sealing gasket 53 is arranged on check valve spool 52, spring 54 is arranged between check valve spool 52 and positive stop strip 55, and spring 54 keeps down check valve spool 52 to contact with check valve receptacle 511 to keep water intake 2 to be closed; Between support 51 and valve body 1, be provided with O shape circle 10; Described positive stop strip 55 is arranged in support 51, prevents from mutually interfering between check valve assembly 5 and suction valve assembly 6; Described suction valve assembly 6 comprises suction valve spool 61, sealing gasket 62 and bonnet 8, suction valve valve seat 81 is arranged on bonnet 8, sealing gasket 62 adopts rubber to be made, there are 622 two annular protrusions of outer ring 621 and inner ring, outer ring 621 is than inner ring 622 height, on outer ring 621, have a small gap 623, under the effect of the resiliently deformable of sealing gasket 62 self, suction valve spool 61 is kept down to depart from suction valve valve seat 81, make suction port keep air-suction state, anti-icer 7 is arranged in suction valve spool 61.
Described bonnet 8 is threaded in the top of valve body 1, is provided with O type circle 11 between bonnet 8 and valve body 1; Above bonnet 8, be provided with cover cap 9, the top of this bonnet 8 utilizes countersunk head Philip's head screw 12 to be connected with the center of cover cap 9, described anti-icer 7 is arranged in suction valve spool 61, described anti-icer 7 is made up of valve port 71, steel ball 72, spring 73 and plug 74, valve port 71 is arranged on suction valve spool 61, suction valve spool 61 adopts has the material polypropylene of some strength and toughness to make, and steel ball 72 and spring 73 all adopt 304 stainless steel materials, and plug 74 adopts brass material; Between plug 74 and suction valve spool 61, adopt ultrasonic welding to fix.
Before assembling the utility model, should first clean each part, must not have any impurity to bring in valve body 1, need the air tightness test through 0.6Mpa before coming into operation, pressurize just can normally be used without any leakage after 15 seconds.
Working principle of the present utility model is further described:
When water intake 2 is intake and when water flow pressure is normal, under the effect of hydraulic pressure, overcome the elastic force of spring 54, check valve receptacle 511 on support 51 separates with the sealing gasket 53 on check valve spool 52, safety check is opened, simultaneously under the effect of hydraulic pressure, due to the small gap 623 on the outer ring 621 of sealing gasket 62, the outer ring 621 of sealing gasket 62 is to turning up, inner ring 622 is combined closely with the suction valve valve seat 81 on bonnet 8, and suction valve cuts out, and water supply system is separated with air intlet, and anti-sealing overflows, in the pipeline at water intake 2 and water outlet 3 places, current are normal;
In the time that water intake 2 does not have the water flow pressure of water or water outlet 3 higher than the water flow pressure of water intake 2, under the effect of spring 54 elastic force, sealing gasket 53 on check valve spool 52 contacts with the check valve receptacle 511 on support 51, closure of check ring, prevent aqueous reflux, simultaneously, under the effect of the outer ring of sealing gasket 62 621 resiliently deformables, suction valve valve seat 81 on bonnet 8 departs from the inner ring 622 of sealing gasket 62, INO, suction port has air to enter, destroy the vacuum in water system pipeline, prevent water siphon or the backflow of water outlet 3, well prevent that water from causing secondary pollution and preventing water consumption device or water pump to cause impact of water hammer.
Winter is when cold, pipeline internal water outside is freezing inward, ice starts to form and expand, and produce pressure accumulated, when pressure is cumulative while reaching certain numerical value, in valve cavity, act on the spring force that pressure on steel ball 72 exceedes spring 73, steel ball 72 is separated with valve port 71, and anti-icer 7 is opened draining, makes the pressure in cavity can not continue to rise or add up, remain within the scope of certain pressure, thereby preventing that valve and pipeline from producing breaks.When the pressure drop in cavity is to certain value, during lower than the spring force of spring 73, under the effect of spring force, steel ball 72 contacts with valve port 71 again, and anti-icer cuts out not draining.
Claims (6)
1. an anti-freezing pressure type vacuum breaker, comprise valve body, water intake, water outlet, suction port, check valve assembly, suction valve assembly, anti-icer, bonnet and cover cap, it is characterized in that: described check valve assembly comprises support, check valve spool, sealing gasket, spring and positive stop strip, check valve receptacle is arranged on support, sealing gasket is arranged on check valve spool, spring is arranged between check valve spool and positive stop strip, and spring keeps down check valve spool to contact with check valve receptacle to keep water intake to be closed; Between support and valve body, be provided with O shape circle.
2. anti-freezing pressure type vacuum breaker according to claim 1, it is characterized in that: described suction valve comprises suction valve spool, sealing gasket and cover cap, suction valve valve seat is arranged on bonnet, sealing gasket adopts rubber to be made, there are two circle annular protrusions, outer ring is higher than inner ring, on outer ring, have a small gap, under the effect of the resiliently deformable of sealing gasket self, suction valve spool is kept down to depart from suction valve valve seat, make suction port keep air-suction state, anti-icer is arranged in suction valve spool.
3. anti-freezing pressure type vacuum breaker according to claim 1, it is characterized in that: described anti-icer is made up of suction valve spool, steel ball, spring and plug, suction valve spool adopts has the material polypropylene of some strength and toughness to make, steel ball and spring all adopt 304 stainless steel materials, and plug adopts brass material; Between plug and upper dish, adopt ultrasonic welding to fix.
4. anti-freezing pressure type vacuum breaker according to claim 1, is characterized in that: described positive stop strip is arranged in support, prevents from mutually interfering between safety check and suction valve.
5. anti-freezing pressure type vacuum breaker according to claim 1, is characterized in that: described bonnet is threaded in the top of valve body, is provided with O type circle between bonnet and valve body.
6. anti-freezing pressure type vacuum breaker according to claim 1, is characterized in that: the top cover of described valve body has cover cap, and this cover cap utilizes Philip's head screw to be connected with the top of bonnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031631.5U CN203641592U (en) | 2014-01-20 | 2014-01-20 | Anti-freezing pressure type vacuum circuit breaker valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031631.5U CN203641592U (en) | 2014-01-20 | 2014-01-20 | Anti-freezing pressure type vacuum circuit breaker valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641592U true CN203641592U (en) | 2014-06-11 |
Family
ID=50872837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420031631.5U Expired - Lifetime CN203641592U (en) | 2014-01-20 | 2014-01-20 | Anti-freezing pressure type vacuum circuit breaker valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641592U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487556A (en) * | 2017-08-28 | 2017-12-19 | 重庆洁邦电器有限公司 | A kind of plug type vacuum grain storage structure |
| CN110307361A (en) * | 2019-08-05 | 2019-10-08 | 浙江卡博铜业有限公司 | A kind of vacuum breaker |
| CN111267813A (en) * | 2020-01-19 | 2020-06-12 | 中车青岛四方机车车辆股份有限公司 | Drain valve, rail vehicle with drain valve and control method of drain system |
| CN112728181A (en) * | 2021-01-18 | 2021-04-30 | 路达(厦门)工业有限公司 | Anti-freezing angle pressure reducing valve |
| CN114689388A (en) * | 2022-04-11 | 2022-07-01 | 遵义铝业股份有限公司 | Device for detecting components of oxidized noncondensable gas in Bayer process production process |
-
2014
- 2014-01-20 CN CN201420031631.5U patent/CN203641592U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487556A (en) * | 2017-08-28 | 2017-12-19 | 重庆洁邦电器有限公司 | A kind of plug type vacuum grain storage structure |
| CN110307361A (en) * | 2019-08-05 | 2019-10-08 | 浙江卡博铜业有限公司 | A kind of vacuum breaker |
| CN111267813A (en) * | 2020-01-19 | 2020-06-12 | 中车青岛四方机车车辆股份有限公司 | Drain valve, rail vehicle with drain valve and control method of drain system |
| CN111267813B (en) * | 2020-01-19 | 2021-03-09 | 中车青岛四方机车车辆股份有限公司 | Drain valve, rail vehicle with drain valve and control method of drain system |
| CN112728181A (en) * | 2021-01-18 | 2021-04-30 | 路达(厦门)工业有限公司 | Anti-freezing angle pressure reducing valve |
| CN114689388A (en) * | 2022-04-11 | 2022-07-01 | 遵义铝业股份有限公司 | Device for detecting components of oxidized noncondensable gas in Bayer process production process |
| CN114689388B (en) * | 2022-04-11 | 2023-03-24 | 遵义铝业股份有限公司 | Device for detecting components of oxidized noncondensable gas in Bayer process production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |