CN201100504Y - Tube negative pressure check elimination valve - Google Patents
Tube negative pressure check elimination valve Download PDFInfo
- Publication number
- CN201100504Y CN201100504Y CNU2007201748602U CN200720174860U CN201100504Y CN 201100504 Y CN201100504 Y CN 201100504Y CN U2007201748602 U CNU2007201748602 U CN U2007201748602U CN 200720174860 U CN200720174860 U CN 200720174860U CN 201100504 Y CN201100504 Y CN 201100504Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- negative pressure
- conduit
- upper valve
- valve
- 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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- Jet Pumps And Other Pumps (AREA)
Abstract
A conduit negative pressure eliminating valve comprises a flange, an upper valve body and a valve body, wherein a floating ball device is arranged in the upper valve body and is connected with an on-off plug and an air guide hole, the upper valve body is provided with a pressure sensor interface, a separation overflowplate is arranged in the center of the valve body and is higher than conduit diameter. In the conduit, liquid passes through the valve body and overflows via the separation overflowplate, when pumping quantity is bigger than liquid input quantity and negative pressure occurs, the overflowing liquid level goes down, a floating ball in the upper valve body also goes down along with the overflowing liquid level and drives the on-off plug to open, then air enters into the valve body for supplement, thereby avoiding the negative pressure from harming the conduit. The conduit negative pressure eliminating valve is connected with a pressure sensor to operate when used for the linkage control of secondary pressurization facilities. Due to the adoption of above technical scheme, the conduit negative pressure eliminating valve can be directly connected in series in delivery conduits, which is simple in structure, reliable in operation, low in cost and easy to use, without occupied area and secondary pollution.
Description
Affiliated technical field
The utility model relates to a kind of device that pipeline produces negative pressure harm that prevents and eliminate.
Background technique
When waterpipe secondary pressurized delivered, the pipeline that then is sucked greater than the initial input flow when aspiration produces corresponding negative pressure, produces the negative pressure infringement.All be to adopt knock out drum and Buffer Pool or air pressure barrier film jar to solve at present, use equipment is many, and floor space is big, moves loaded down with trivial detailsly, also causes secondary pollution, the operating cost height.
Summary of the invention
The utility model has overcome the deficiencies in the prior art, provides a kind of pipe negative pressure that can eliminate pipe negative pressure harm to end and removes valve.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of pipe negative pressure end to be removed valve and is made up of flange, upper valve body, valve body, be provided with in the upper valve body floating ball device and with open and close fill in, gas port links to each other; Upper valve body has pressure sensor interface; Be provided with the separation overflow plate in the valve body between two parties, separate the diameter that overflow plate exceeds pipeline.
In pipeline, liquid by valve body through separating the overflow plate overflow mistake, when aspiration negative pressure occurs greater than the liquid input quantity, the overflow liquid level descends, ball float in the upper valve body and then decline drive keying plug is opened, and air enters additional from gas port, thereby has eliminated negative pressure harm pipeline.When pipe negative pressure only is used for secondary pressurization facility interlock control except that valve, connects pressure transducer and move.
Because adopt technique scheme, the utility model can directly be connected among the conveyance conduit, and is simple in structure, reliable, do not account for the place, cost is low, and no secondary pollution is easy to implement.
Description of drawings
Figure of description is a structural representation of the present utility model.
Among the figure: flange 1 upper valve body 2 valve bodies 3 are separated overflow plate 4 floating ball devices 5 and are opened and closed plug 6 pressure sensor interfaces 7 air vias 8.
Embodiment
In the drawings, pipe negative pressure is only removed the two ends of the flange 1 of valve at valve body 3, polyphone is connected in the liquid conducting pipes, liquid enters from valve body 3 separates overflow plate 4, rise liquid flooding through separating overflow plate 4 retainings, the floating ball device 5 of effect of increasing in upper valve body 2, floating ball device 5 open-shut linkage plugs 6 open and close air via 8, and pipeline keep-ups pressure and normally moves.
When pipe negative pressure only was used for secondary pressurization facility interlock control except that valve, the pressure sensor interface 7 on the upper valve body 2 was connected with automatically controlled lead, detected pressures variation adjustment running state.
Claims (3)
1. a pipe negative pressure is ended and is removed valve and is made up of flange, upper valve body, valve body, it is characterized in that: be provided with in the upper valve body floating ball device and with open and close fill in, gas port links to each other.
2. a kind of pipe negative pressure according to claim 1 is ended except that valve, and it is characterized in that: upper valve body has pressure sensor interface.
3. a kind of pipe negative pressure according to claim 1 is ended except that valve, it is characterized in that: be provided with the separation overflow plate in the valve body between two parties, separate the diameter that overflow plate exceeds pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201748602U CN201100504Y (en) | 2007-08-30 | 2007-08-30 | Tube negative pressure check elimination valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201748602U CN201100504Y (en) | 2007-08-30 | 2007-08-30 | Tube negative pressure check elimination valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100504Y true CN201100504Y (en) | 2008-08-13 |
Family
ID=39937037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201748602U Expired - Fee Related CN201100504Y (en) | 2007-08-30 | 2007-08-30 | Tube negative pressure check elimination valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100504Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506537A (en) * | 2018-07-03 | 2018-09-07 | 江苏省华扬太阳能有限公司 | Novel water supply decompressor |
-
2007
- 2007-08-30 CN CNU2007201748602U patent/CN201100504Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506537A (en) * | 2018-07-03 | 2018-09-07 | 江苏省华扬太阳能有限公司 | Novel water supply decompressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20110830 |