CN207777852U - A kind of pressure relief device of pressure flow pipeline access pressure free current pipeline - Google Patents
A kind of pressure relief device of pressure flow pipeline access pressure free current pipeline Download PDFInfo
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- CN207777852U CN207777852U CN201721695418.4U CN201721695418U CN207777852U CN 207777852 U CN207777852 U CN 207777852U CN 201721695418 U CN201721695418 U CN 201721695418U CN 207777852 U CN207777852 U CN 207777852U
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- pressure
- free current
- pipeline
- pipe
- snorkel
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Abstract
The utility model discloses a kind of pressure relief device of pressure flow pipeline access pressure free current pipeline, it is provided with exhaust pipe well on the pressure free current return main of its buried-pipe laying, being vented pressure flow circulating cooling return pipe on the centre distance pressure free current return main of pipe well, point is L therewith；It is vented in pipe well and is equipped with threeway, the left and right ends of threeway are connected with pressure free current return main, and the middle-end of threeway is connected with snorkel, and the gas outlet of snorkel is provided with insect preventing net cover.The utility model is not necessarily to overhaul using on-mechanical exhaust, balance ductwork pressure, gas in the timely discharge line of energy, and the clean water in pipeline is not exposed in air, not vulnerable to pollution.
Description
Technical field
The utility model is related to the pressure relief devices that a kind of pressure flow pipeline accesses pressure free current pipeline, and it is buried deposited to be suitable for plant area
If, the circulating cooling return pipe of water cleaning flows automatically return water.
Background technology
Currently, in industrial project, in order to save water resource, the application of Municipal Sewage for Circulating is more and more extensive.Due to factory
Area uses water spot more, and position relatively disperses, and when sharing a return water main pipe with water spot, will produce each return branch pressure balance
The problem of being not easy to adjust, influence production equipment uses water uniformity.Common solution is each circulating backwater branch with water spot
Pipe uses pressure flow, circulating backwater main pipe to use pressure free current, but when pressure flow circulating cooling return water flows into pressure free current main pipe,
It can upset without pressure flow state, so that the gas being dissolved in water is escaped, flock together to form bubble, reduce the cross-section of river, design
Flow influences upper water and flows into downstream line.
In order to make to have the circulating backwater branch pipe of pressure smoothly to flow into the circulating backwater main pipe without pressure, common solution has
It is following two：
One, after circulating backwater branch pipe is by drainage inspection well pressure release, it is discharged into circulating backwater main pipe.The advantages of this method is
On-mechanical is vented, operational safety, reliable, the disadvantage is that the clean water in pipeline is contacted with inspection shaft, impurity can dissolve in inspection shaft
Yu Shuizhong pollutes water quality, and water is exposed in air, also vulnerable to pollution.
Two, the setting exhaust valve pit on circulating backwater main pipe.The advantages of this method is that the clean water in pipeline does not expose
In air, vulnerable to pollution does not cause the gas on return water main pipe the disadvantage is that the opening of air bleeding valve, needs certain pressure
It is not easy to be discharged, the purpose of pressure release cannot be fully achieved, operation is dangerous, in addition increases valve expense and maintenance cost.
Invention content
Pressure flow circulating cooling return pipe to solve buried-pipe laying in the prior art, which flows into existing for pressure free current manifold, to be lacked
Point, the purpose of this utility model are to provide a kind of pressure relief device of safe, practical pressure flow pipeline access pressure free current pipeline,
Upper water is not influenced and flows into downstream line, and keeps water cleaning in pipeline, ensures recirculating cooling water system normal operation.
For achieving the above object, the utility model adopts the following technical solution：
A kind of pressure flow pipeline accesses the pressure relief device of pressure free current pipeline, is set on the pressure free current return main of buried-pipe laying
It is equipped with exhaust pipe well, the centre distance pressure free current return main for being vented pipe well goes up pressure flow circulating cooling return pipe point therewith
It is 3 ~ 5m for L, L；It is vented in pipe well and is equipped with threeway, the left and right ends of threeway are connected with pressure free current return main, in threeway
End is connected with snorkel, and the gas outlet of snorkel is provided with insect preventing net cover.
The pressure relief device of the pressure flow pipeline access pressure free current pipeline, pressure free current return main are metal tube, pipe
Diameter DN1>When 200mm, the caliber of snorkel is 200mm；When caliber DN1≤200mm, the caliber of snorkel is DN1.
Due to using technical solution as described above, the utility model that there is following superiority：
The pressure flow pipeline accesses the pressure relief device of pressure free current pipeline, simple in structure, easy to operate, is arranged using on-mechanical
Gas is not necessarily to overhaul, balance ductwork pressure, gas in the timely discharge line of energy, and the clean water in pipeline is not exposed in air, no
Vulnerable to pollution；The exhaust joint structure not having on standard collective drawings has been filled up, has provided alternative for subsequent design, more just
Profit；Compared with the technology of conventionally employed air bleeding valve, exhaust effect is more preferable, and saves valve expense, reduces maintenance cost, makes
With more securely and reliably.
Description of the drawings
Fig. 1 is the structural schematic diagram of the pressure relief device of the utility model pressure flow pipeline access pressure free current pipeline；
Fig. 2 is A-A in Fig. 1 to sectional view；
In figure：1- pressure free current return mains；2- pressure flow circulating cooling return pipes；3- is vented pipe well；4- snorkels；
5- cat ladders；6- insect preventing net covers；7- flanges；8- connecting tubes；9- threeways.
Specific implementation mode
The technical solution of the utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, 2, the pressure free current of the pressure relief device of pressure flow pipeline access pressure free current pipeline, buried-pipe laying returns
It is provided with exhaust pipe well 3 on supply mains 1, is vented pressure flow circulating cooling on the centre distance pressure free current return main 1 of pipe well and returns
Point is L to water pipe 2 therewith, and L is 3 ~ 5m；It is vented in pipe well and is equipped with threeway 9, left and right ends and the pressure free current return main of threeway
1 is connected, and the middle-end of threeway is connected with snorkel 4 by connecting tube 8, flange 7, and the gas outlet of snorkel is provided with insect preventing net cover
6；It is provided with cat ladder 5 in exhaust pipe well 3.
Above-mentioned pressure flow return branch, pressure free current return main are metal tube, the caliber DN1 of pressure free current return main
>When 200mm, the caliber of snorkel is 200mm；When caliber DN1≤200mm, the caliber of snorkel is DN1.
The course of work of pressure relief device of the utility model pressure flow pipeline access pressure free current pipeline is：In buried-pipe laying
It is provided with exhaust pipe well 3 on pressure free current return main 1, is vented the upper pressure flow cycle of centre distance pressure free current return main of pipe well
Cooling back water pipe 2, point is L therewith, and L is 3 ~ 5m；It is vented in pipe well and is equipped with snorkel 4, the gas outlet of snorkel is provided with anti-
Worm guard 6；When in the pressure water access pressure free current return main 1 in pressure flow circulating cooling return pipe 2, it is vented logical in pipe well
Tracheae 4 excludes the air in pressure free current return main 1 automatically, reduces to the water currents in pressure free current return main, keeps nothing
Pressure flows back to the operation of the water flow stationary in supply mains；Meanwhile insect preventing net cover 6 can prevent mosquito etc. from entering pressure free current return main
It is interior, it avoids influencing water quality in pressure free current return main.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly
The limitation of type protection domain, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel need not make the creative labor the various modifications that can be made or deformation still in the protection of the utility model
Within range.
Claims (2)
1. a kind of pressure relief device of pressure flow pipeline access pressure free current pipeline, it is characterized in that：The pressure free current return water of its buried-pipe laying
Exhaust pipe well is provided on manifold, be vented the upper pressure flow circulating cooling return pipe of centre distance pressure free current return main of pipe well with
Point be L, L be 3 ~ 5m；It being vented in pipe well and is equipped with threeway, the left and right ends of threeway are connected with pressure free current return main,
The middle-end of threeway is connected with snorkel, and the gas outlet of snorkel is provided with insect preventing net cover.
2. the pressure relief device of pressure flow pipeline access pressure free current pipeline according to claim 1, it is characterized in that：Its pressure free current
Return main is metal tube, caliber DN1>When 200mm, the caliber of snorkel is 200mm；When caliber DN1≤200mm, snorkel
Caliber be DN1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695418.4U CN207777852U (en) | 2017-12-08 | 2017-12-08 | A kind of pressure relief device of pressure flow pipeline access pressure free current pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695418.4U CN207777852U (en) | 2017-12-08 | 2017-12-08 | A kind of pressure relief device of pressure flow pipeline access pressure free current pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777852U true CN207777852U (en) | 2018-08-28 |
Family
ID=63231713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721695418.4U Active CN207777852U (en) | 2017-12-08 | 2017-12-08 | A kind of pressure relief device of pressure flow pipeline access pressure free current pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940150A (en) * | 2017-12-08 | 2018-04-20 | 中色科技股份有限公司 | A kind of pressure relief device and method of pressure flow pipeline access pressure free current pipeline |
-
2017
- 2017-12-08 CN CN201721695418.4U patent/CN207777852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940150A (en) * | 2017-12-08 | 2018-04-20 | 中色科技股份有限公司 | A kind of pressure relief device and method of pressure flow pipeline access pressure free current pipeline |
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