CN204628663U - Gas breaks formula safety check - Google Patents
Gas breaks formula safety check Download PDFInfo
- Publication number
- CN204628663U CN204628663U CN201520313635.7U CN201520313635U CN204628663U CN 204628663 U CN204628663 U CN 204628663U CN 201520313635 U CN201520313635 U CN 201520313635U CN 204628663 U CN204628663 U CN 204628663U
- Authority
- CN
- China
- Prior art keywords
- safety check
- reducing bend
- hump
- water
- formula safety
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of gas and to break formula safety check, this device is arch, two ends are pipe connection portion, centre is hump portion, be provided with reducing bend portion between pipe connection portion with hump portion to be connected, reducing bend portion is by slightly to fine texture, the water outlet side in reducing bend portion is connected with breathing pipe portion, and inherent breathing pipe portion of reducing bend portion and reducing bend portion link position are provided with and seal flap portion and limiting stopper portion, and limiting stopper portion limits the opening angle in sealing flap portion between 80-120 degree.The utility model has the advantage of: structure is simple, reliable operation, can reach in the water having impurity and low water head pressure reduction time, the thoroughly effect of cutout sealing.
Description
Technical field
The utility model relates to a kind of height pond and is communicated with way flow, and caliber is at DN150 and with the cutout water cut-off device on lower pipeline.Especially in water containing granule foreign pipeline on be a kind of safe and reliable safety check.
Background technique
In actual life, often need, by pipeline, water is transported to a higher level from low water level, and keep high water level not reflux to low water level.The water quality of simultaneously carrying contains impurity, especially graininess impurity.As Naked dew face or the natural water bodies through simple filtration such as agricultural irrigation water, fountain, waterfall, plunge pools.This just needs to prevent from flowing backwards with safety check.And traditional safety check is wanted thorough fluid stopping to need certain hydraulic head pressure poor, and require that conveying water water quality is comparatively clean, without graininess impurity, otherwise just cannot reach the thorough effect stopped.Requiring by pipeline the water containing granule impurity be transported to high water level from low water level and maintain high water level, except there is not seepage in pond civil engineering and emptying pipeline, another very important link be exactly water outlet be submerged in the water transport pipeline connecting upper and lower water level under water do not occur backflow.This just must arrange safety check (one-way valve) and carry out content with funtion requirement on water transport pipeline.But there are the following problems for current safety check traditionally: the hydraulic head pressure of certain high-low water level need be had poor during (1) sealing, or need certain work water pressure during opens check valve flap.For flap type safety check, time very little with downstream pressure difference before the valve of fluid stopping (<0.015Mpa), therefore fluid stopping effect can be deteriorated or just only not live water.Though and adopt spring loaded check valve can effective sealing, work water pressure that again must be certain when the unidirectional water delivery of pipeline just can open flap, adds transport loss (energy consumption); (2) water quality requirement carried is higher, for the water having impurity, especially the water of granule foreign, during fluid stopping, because the impurity particle in water is stuck in flap sealed mouth place and loses cutout water stopping function, no matter can be flap type or spring loaded check valve, before valve, water impurity effectively do not filtered, then the operational reliability of valve reduces, and rate of fault will be higher; (3) be all the sealing that directly stops on water transport pipeline.
Summary of the invention
The purpose of this utility model there are provided a kind of safety check, solves water level and the very little closure of check ring that makes of lower water level hydraulic head pressure difference is dead, and is having in water impurity and reliably can not stop water problem.
The technical solution of the utility model is: a kind of gas breaks formula safety check, this gas formula safety check that breaks comprises pipe connection portion, reducing bend portion, hump portion, breathing pipe portion, sealing flap portion, limiting stopper portion, this device is arch, two ends are pipe connection portion, centre is hump portion, be provided with reducing bend portion between pipe connection portion with hump portion to be connected, reducing bend portion is (by circle to flat) from coarse to fine structure, the water outlet side in reducing bend portion is connected with breathing pipe portion, inherent breathing pipe portion of reducing bend portion and reducing bend portion link position are provided with and seal flap portion and limiting stopper portion, limiting stopper portion limits the opening angle in sealing flap portion between 80-120 degree, wherein, described joint is connected with aqueduct, described breathing pipe portion trachea communicates with ambient atmosphere, and described sealing flap is opened and made ambient air enter cutout, and close and make watertight flowing in pipeline, hump bottom surface exceeds the highest water surface.
Pipe connection portion adopts Flange joint or is threaded.
Described breathing pipe joining part can be located at top and the lower position in hump portion.
Described joint caliber is DN25-DN150.
Described installation bottom surface, hump portion should exceed the highest water surface >=20mm.
Described breathing pipe portion interface caliber is: 10-40mm.
It is effect to installing space above that hump portion narrows, also can be that circle (reduces the distance that pipeline exceeds the water surface, reduce installing space) safety check, under water pump effect, water is pumped to high water level from low water level when drawing water, the water of high water level (generation siphonage) backflow under the effect of differential water pressures after termination of pumping, at this moment (lower than barometric pressure) negative pressure is produced in reducing bend portion, sealing flap portion is opened into limiting stopper place, air enters the inside and outside air pressure balance that reducing bend portion makes reducing bend portion, water makes the water level balance in reducing bend portion under gravity, backflow stops, reach stagnant water effect.
The utility model has the advantage of: structure is simple, reliable operation, can reach in the water having impurity and low water head pressure reduction time, the thoroughly effect of cutout sealing.
Accompanying drawing explanation
Fig. 1 is that the utility model gas breaks formula check valve structure schematic diagram.
In figure:
1 is (water-in and water-out) pipe connection portion (Flange joint or be threaded), and 2 is water inlet reducing bend portion, and 3 is water outlet reducing bend portion, and 4 be hump portion, and 5 for sealing flap portion, and 6 is breathing pipe portion, and 7 is limiting stopper portion.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the new embodiment of this practicality, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, (water-in and water-out) pipe connection portion 1(Flange joint or be threaded) one end taps into water outlet exterior line, the other end taps into water reducing bend portion 2 or water outlet reducing bend portion 3; Reducing bend portion makes pipeline section fade to flat by circle, and circular cross section section connects pipe connection portion 1, and flat section meets hump portion 4; Water outlet reducing bend portion 3 is connected to breathing pipe portion 6.Hump portion 4 is that flat section is to reduce the distance that pipeline exceeds the water surface, reduce installing space, hump portion 4 connects water inlet reducing bend portion 2 and water outlet reducing bend portion 3, sealing flap portion 5 is loaded on 6 tops of breathing pipe portion in 3 reducing bends, the effect blocking and introduce air is reached by the closed unlatching sealing flap portion 5, breathing pipe portion 6 is connected on 3 reducing bend tops, breathing pipe portion 6 communicates with ambient atmosphere, introduce air during cutout and destroy the effect that negative pressure reaches cutout, limiting stopper portion 7 is contained in the top that breathing pipe portion 6 is positioned at nearly hump portion 4, the opening degree in restriction sealing flap portion, guarantee the correct reliably action of sealing flap.
Working procedure: when pipeline carries out water delivery work, press water is from pipe connection portion 1(import) flow to, sealing flap portion 5 is closed under fluid pressure action, and fluid exports from pipe connection portion 1() flow out.When pipeline stops water delivery work, water by upper water level by water transport pipeline backflow water level downwards on the contrary, subatmospheric negative pressure is formed in hump portion 4, produce siphon, now seal flap portion 5 to open under the effect of pressure reduction, air enters hump portion 4, destroys negative pressure in hump portion 4, water stops from hump portion 4 under gravity, thus reaches the effect of thorough sealing cutout.Current make active cross-section smoothly transition through water inlet reducing bend portion 2 and water outlet reducing bend portion 3, and to reduce loss of head, limiting stopper portion 7 is used for controlling the opening degree in sealing flap portion 5, guarantees the correct reliably action of sealing flap.
The position in described breathing pipe portion 6 can be located in the outside in water outlet reducing bend portion 3, water inlet one of the outside in reducing bend portion 2 and these three positions, upside in hump portion 4.Also can be placed in inner side or the downside at these three positions, the outer upper being placed in water outlet reducer pipe 3 is the result that inventor obtains through large quantity research simultaneously.
The internal diameter in described breathing pipe portion 6 is relevant with the flow of pipeline water delivery, is DN25-DN150 for joint caliber, and breathing pipe portion 6 internal diameter is greater than 10mm, external hard tube, guarantees that air enters unobstructed.
Preferably: the bottom in described hump portion 3 exceeds more than highest water level 20mm, more preferably: the bottom of hump 3 exceeds highest water level 30mm.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a gas breaks formula safety check, it is characterized in that: this gas formula safety check that breaks comprises pipe connection portion, reducing bend portion, hump portion, breathing pipe portion, sealing flap portion, limiting stopper portion, this device is arch, two ends are pipe connection portion, centre is hump portion, be provided with reducing bend portion between pipe connection portion with hump portion to be connected, reducing bend portion is by slightly to fine texture, the water outlet side in reducing bend portion is connected with breathing pipe portion, inherent breathing pipe portion of reducing bend portion and reducing bend portion link position are provided with and seal flap portion and limiting stopper portion, limiting stopper portion limits the opening angle in sealing flap portion between 80-120 degree, wherein, described joint is connected with aqueduct, described breathing pipe portion trachea communicates with ambient atmosphere, and described sealing flap portion opens and makes ambient air enter cutout, and close and make watertight flowing in pipeline, hump bottom surface exceeds the highest water surface.
2. gas breaks formula safety check according to claim 1, it is characterized in that: pipe connection portion adopts Flange joint or is threaded.
3. gas breaks formula safety check according to claim 1, it is characterized in that: described breathing pipe joining part can be located at top and the lower position in hump portion.
4. gas breaks formula safety check according to claim 1, it is characterized in that: described joint caliber is DN25-DN150.
5. gas breaks formula safety check according to claim 1, it is characterized in that: described installation bottom surface, hump portion should exceed the highest water surface >=20mm.
6. gas breaks formula safety check according to claim 1, it is characterized in that: described breathing pipe portion interface caliber is: 10-40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313635.7U CN204628663U (en) | 2015-05-15 | 2015-05-15 | Gas breaks formula safety check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313635.7U CN204628663U (en) | 2015-05-15 | 2015-05-15 | Gas breaks formula safety check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628663U true CN204628663U (en) | 2015-09-09 |
Family
ID=54047695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520313635.7U Expired - Fee Related CN204628663U (en) | 2015-05-15 | 2015-05-15 | Gas breaks formula safety check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719643A (en) * | 2021-09-29 | 2021-11-30 | 韩方 | Bubble gate for switching on and off fluid by using air resistance |
-
2015
- 2015-05-15 CN CN201520313635.7U patent/CN204628663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719643A (en) * | 2021-09-29 | 2021-11-30 | 韩方 | Bubble gate for switching on and off fluid by using air resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20190515 |