CN2926710Y - Precisive isolated antifouling drainer - Google Patents
Precisive isolated antifouling drainer Download PDFInfo
- Publication number
- CN2926710Y CN2926710Y CN 200620043364 CN200620043364U CN2926710Y CN 2926710 Y CN2926710 Y CN 2926710Y CN 200620043364 CN200620043364 CN 200620043364 CN 200620043364 U CN200620043364 U CN 200620043364U CN 2926710 Y CN2926710 Y CN 2926710Y
- Authority
- CN
- China
- Prior art keywords
- valve
- diaphragm
- hydathode
- valve body
- outlet end
- 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 - Lifetime
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- Details Of Valves (AREA)
Abstract
The utility model discloses a completely-isolated type antifouling drainer with precisely inductive capacity. Valve body of the drainer is connected fixedly with valve covers of outlet end and valve inlet end through a fixing bolt. Diaphragm of the outlet end is positioned between the vale cover of the outlet end and the valve body of the drainer, while diaphragm of the inlet end is positioned between the valve cover of the inlet end and the valve body. The utility model is characterized in that: a balancing hole is arranged on part of the valve body near to the diaphragm of the inlet end. The utility model is of proper structure and ingenious design. The balancing hole is arranged on the valve body near to the diaphragm of the inlet end, which makes backpressure of the diaphragm of the inlet end zero and equal to the backpressure of the diaphragm of the outlet end, making the stressing of both diaphragms in balance. The utility model exhibits exact induction, reliable operation and great value in popularization.
Description
Technical field
The utility model relates to the valve technology field, specifically, relates to a kind of drainage means of valve.
Background technique
Present hydathode is only responded to the pressure of entrance point and intermediate cavity.Its defective is: when main valve leaks when serious, before discharging the main valve leaking medium, an induction process need be arranged, thereby easily cause main valve intermediate cavity pressure greater than entrance point pressure may, the antifouling interrupting performance of main valve was lost efficacy, drainage capacity is less simultaneously.For this reason, the inventor has designed and has adopted two diaphragm structures, can respond to the anti-soil draining equipment of main valve inlet/outlet end pressure simultaneously.But in use find, once the stressed state of equilibrium that is not in of two diaphragms will influence the accuracy of its induction, thereby reduce the reliability of its work.
Summary of the invention
The purpose of this utility model is, provides a kind of and can effectively overcome above-mentioned defective, the high precise induction totally separating type anti-soil draining equipment of induction validity.
For achieving the above object, the utility model adopts following technological scheme: a kind of precise induction totally separating type anti-soil draining equipment, hydathode valve body and outlet end valve gap, the entrance point valve gap is connected and fixed by being connected and fixed bolt, be provided with the outlet end diaphragm between outlet end valve gap and the hydathode valve body, be provided with the entrance point diaphragm between entrance point valve gap and the hydathode, be provided with outlet induction valve shaft and import induction valve shaft between outlet end diaphragm and the entrance point diaphragm, be provided with caulking gum between the two induction valve shafts, caulking gum and hydathode valve body form sealing pair, wherein offer outlet pressure induction mouth on the outlet end valve gap, offer inlet pressure induction mouth on the entrance point valve gap, offer the intermediate cavity interface on the hydathode valve body, offer drain opening under the hydathode valve body, it is characterized in that: the nearly entrance point diaphragm of hydathode valve body place offers equalizing orifice.
Owing to adopt such scheme, be not difficult to draw as drawing a conclusion: the utility model is rational in infrastructure, be skillfully constructed, owing to offer equalizing orifice at the nearly entrance point diaphragm of hydathode valve body place, the back pressure that can make the entrance point diaphragm is zero, equates with the back pressure of outlet end, thereby make double diaphragm applied force be in state of equilibrium, induction is accurate, and reliable operation has promotional value.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
A kind of precise induction totally separating type anti-soil draining equipment, hydathode valve body 3 and outlet end valve gap 1, entrance point valve gap 6 is connected and fixed by being connected and fixed bolt 7, be provided with outlet end diaphragm 2 between outlet end valve gap 1 and the hydathode valve body 3, be provided with entrance point diaphragm 5 between entrance point valve gap 6 and the hydathode 3, be provided with outlet induction valve shaft 9 and import induction valve shaft 8 between outlet end diaphragm 2 and the entrance point diaphragm 5, be provided with caulking gum 4 between the two induction valve shafts, caulking gum 4 forms sealing pair with the hydathode valve body, hydathode valve body 3 nearly entrance point diaphragms 5 places offer equalizing orifice 14, wherein offer outlet pressure induction mouth 10 on the outlet end valve gap 1, offer inlet pressure induction mouth 11 on the entrance point valve gap 6, offer intermediate cavity interface 12 on the hydathode valve body 3, the hydathode valve body offers drain opening 13 3 times, is provided with seal ring 15 between hydathode valve body 3 and the import induction valve shaft 8.During use, hydathode inlet pressure induction mouth is connected with the inlet tube of main valve, outlet pressure induction mouth is connected with the outer pipe of main valve, and the intermediate cavity interface is connected with the middle lumen of main valve.When the main valve inlet pressure greater than outlet pressure, main valve is opened, and the power of responding on the entrance point diaphragm makes import induction valve shaft, outlet induction valve shaft, caulking gum contact with the sealing surface of hydathode valve body greater than the power of responding on the outlet end diaphragm, form sealing, hydathode reliably cuts out.When the outlet pressure of main valve greater than, when equaling inlet pressure, main valve is closed, the pressure of responding on the outlet end diaphragm is greater than the pressure of responding on the entrance point diaphragm, by outlet induction valve shaft, import induction valve shaft caulking gum is separated with sealing surface on the hydathode valve body, hydathode is opened, the pressure that makes the main valve intermediate cavity is zero, once producing, any Sealing of main valve leaks, leak medium all from hydathode intermediate cavity interface by flowing to drain opening between hydathode valve body and the caulking gum, row is outside, thereby avoids main valve entrance point medium contaminated.
Claims (1)
1, a kind of precise induction totally separating type anti-soil draining equipment, hydathode valve body and outlet end valve gap, the entrance point valve gap is connected and fixed by being connected and fixed bolt, be provided with the outlet end diaphragm between outlet end valve gap and the hydathode valve body, be provided with the entrance point diaphragm between entrance point valve gap and the hydathode, be provided with outlet induction valve shaft and import induction valve shaft between outlet end diaphragm and the entrance point diaphragm, be provided with caulking gum between the two induction valve shafts, caulking gum and hydathode valve body form sealing pair, wherein offer outlet pressure induction mouth on the outlet end valve gap, offer inlet pressure induction mouth on the entrance point valve gap, offer the intermediate cavity interface on the hydathode valve body, offer drain opening under the hydathode valve body, it is characterized in that: the nearly entrance point diaphragm of hydathode valve body place offers equalizing orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043364 CN2926710Y (en) | 2006-06-28 | 2006-06-28 | Precisive isolated antifouling drainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043364 CN2926710Y (en) | 2006-06-28 | 2006-06-28 | Precisive isolated antifouling drainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2926710Y true CN2926710Y (en) | 2007-07-25 |
Family
ID=38280954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620043364 Expired - Lifetime CN2926710Y (en) | 2006-06-28 | 2006-06-28 | Precisive isolated antifouling drainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2926710Y (en) |
-
2006
- 2006-06-28 CN CN 200620043364 patent/CN2926710Y/en not_active Expired - Lifetime
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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: 20070725 |
|
| EXPY | Termination of patent right or utility model |