CN103032609A - Anti-backflow visible flow indictor - Google Patents
Anti-backflow visible flow indictor Download PDFInfo
- Publication number
- CN103032609A CN103032609A CN2011103077478A CN201110307747A CN103032609A CN 103032609 A CN103032609 A CN 103032609A CN 2011103077478 A CN2011103077478 A CN 2011103077478A CN 201110307747 A CN201110307747 A CN 201110307747A CN 103032609 A CN103032609 A CN 103032609A
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- impeller
- valve
- valve body
- seat
- valve seat
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Abstract
The invention provides an anti-backflow visible flow indictor, which comprises a valve body, a gland, an impeller, an impeller seat and glass. The impeller is fixedly installed in the passage of the valve body through the impeller seat. The glass is installed on the two sides of the impeller seat. The impeller seat is fixedly arranged on the valve body through the gland. A valve seat is additionally installed in the valve body. A through hole is arranged in the valve seat at a position wherein the valve seat is connected with a right passage. The valve seat is fixedly arranged in the valve body through a bonnet. A spool is installed in the valve seat. The end part of the spool can stretch into a hole on the boss of the bonnet and can slide up and down. A spring is additionally installed between the step of the spool and the lower end surface of the bonnet. The valve seat is hermetically connected with the valve body and the bonnet through sealing gaskets. The axis of the impeller is deviated from the centerline of the passage of the valve body. The anti-backflow visible flow indictor has the beneficial effects that the medium can be effectively prevented from flowing back, the structure is simple, the installation space is small and the impeller can rotate freely when the flow is small.
Description
Technical field
The present invention relates to a kind of pipeline flow indicating device, particularly relate to a kind of visual flow indicator with the anti-medium refluence of impeller.
Background technique
Use at present the visual flow indicator in the pipeline use of the industries such as municipal administration, metallurgy, nuclear power, all do not prevent the function that medium flows backwards, and some uses system process to require not allow medium to flow backwards, usually at the front end of visual flow indicator a safety check is installed in addition, realize preventing the function of medium refluence, owing to be subjected to the restriction of installing space, inconvenience be installed.
Summary of the invention
Can not prevent the deficiency that medium flows backwards in order to overcome existing visual flow indicator, the invention provides a kind of backflow-preventing visual flow indicator.
The technical solution adopted for the present invention to solve the technical problems is a kind of backflow-preventing visual flow indicator, comprise valve body, gland, impeller, impeller base, glass, impeller is fixedly mounted in the valve channel by impeller base, glass is equipped with in the impeller base both sides, be fixed on the valve body by gland, one valve seat also is housed in the valve body, have a through hole with the right channel joint on the valve seat, valve seat is fixed in the valve body by valve gap, spool is housed in the valve seat, the end of spool can be stretched in the hole of boss of valve gap and slide up and down, and spring also is housed, valve seat and valve body between the step of spool and valve gap lower end surface, valve cover chamber seals by sealing gasket.
The axis of impeller and valve channel center line have a side-play amount.
The invention has the beneficial effects as follows to prevent that effectively medium from flowing backwards, simple in structure, installing space is little, and impeller also rotates when small flow flexibly.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the tectonic maps of present embodiment
Fig. 2 is the plan view of Fig. 1
Among the figure: 1. valve gap; 2. valve seat; 3. spring; 4. spool; 5. valve body; 6. sealing gasket; 7. impeller; 8. impeller base; 9. glass; 10, gland.
Embodiment
As depicted in figs. 1 and 2, a kind of backflow-preventing visual flow indicator, comprise valve body 5, gland 10, impeller 7, impeller base 8, glass 9, impeller 7 is fixedly mounted in the passage of valve body 5 by impeller base 8, glass 9 is equipped with in impeller base 8 both sides, be fixed on the valve body 5 by gland 10, see through the rotation situation that glass 9 is observed impeller 7, can conveniently know the mobility status of pipeline medium.One valve seat 2 also is housed in the valve body 5, have a through hole with the right channel joint on the valve seat 2, valve seat 2 is fixed in the valve body 5 by valve gap 1, spool 4 is housed in the valve seat 5, the end of spool 4 can be stretched in the hole of boss of valve gap 1 and slide up and down, between the lower end surface of the step of spool 4 and valve gap 1 spring 3 is housed also, 1 of valve seat 2 and valve body 5, valve gap are by sealing gasket 6 sealings.The axis of impeller 7 and valve body 5 channel centerlines have a side-play amount, can rotate flexibly by impeller 7 when small flow.
During work, medium enters from the left end passage, overcomes the weight of spool 4 and the active force of spring 3, backs down spool 4, flows to impeller 7 from the hole on valve seat 2 right sides, impeller 7 rotations; When the medium refluence occured, medium entered from valve body 5 right-hand member passages, and under the effect of medium power and spring 3 active forces, spool 4 moves down, and compressed valve seat 2, realized sealing, can effectively prevent the refluence of medium.
Claims (2)
1. backflow-preventing visual flow indicator, comprise valve body, gland, impeller, impeller base, glass, impeller is fixedly mounted in the valve channel by impeller base, glass is equipped with in the impeller base both sides, be fixed on the valve body by gland, it is characterized in that: a valve seat also is housed in the described valve body, have a through hole with the right channel joint on the valve seat, valve seat is fixed in the valve body by valve gap, spool is housed in the valve seat, the end of spool can be stretched in the hole of boss of valve gap and slide up and down, and spring also is housed, valve seat and valve body between the step of spool and valve gap lower end surface, valve cover chamber seals by sealing gasket.
2. the anti-down visual flow indicator that falls according to claim 1, it is characterized in that: the axis of described impeller and valve channel center line have a side-play amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103077478A CN103032609A (en) | 2011-09-30 | 2011-09-30 | Anti-backflow visible flow indictor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103077478A CN103032609A (en) | 2011-09-30 | 2011-09-30 | Anti-backflow visible flow indictor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103032609A true CN103032609A (en) | 2013-04-10 |
Family
ID=48019829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103077478A Pending CN103032609A (en) | 2011-09-30 | 2011-09-30 | Anti-backflow visible flow indictor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103032609A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2387805A (en) * | 1942-11-12 | 1945-10-30 | Erie Meter Systems Inc | Visual fluid flow indicator |
| FR1084513A (en) * | 1952-10-02 | 1955-01-20 | Philips Nv | Fluid flow indicator |
| GB1180558A (en) * | 1966-08-03 | 1970-02-04 | Rhodes & Son Ltd B | Improvements in or relating to Fluid-Flow Indicators |
| CN2591359Y (en) * | 2002-12-04 | 2003-12-10 | 曾庆贵 | Damping wear resisting non-return valve |
| CN200986561Y (en) * | 2006-12-18 | 2007-12-05 | 天津市五环仪表厂 | Water flow indicator with visual rotation impeller |
| DE102009007652A1 (en) * | 2009-02-03 | 2010-08-26 | Honsberg Instruments Gmbh | Device i.e. flow monitor, for monitoring and/or measuring flow rate of medium i.e. liquid medium, has releasing unit releasing annular gap for liquid medium from flow rate exceeding predetermined threshold value |
| CN102037365A (en) * | 2008-06-04 | 2011-04-27 | 千住灭火器株式会社 | Flowing-water detector |
| CN202256379U (en) * | 2011-09-30 | 2012-05-30 | 江苏神通阀门股份有限公司 | Backflow-preventing visual flow indicator |
-
2011
- 2011-09-30 CN CN2011103077478A patent/CN103032609A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2387805A (en) * | 1942-11-12 | 1945-10-30 | Erie Meter Systems Inc | Visual fluid flow indicator |
| FR1084513A (en) * | 1952-10-02 | 1955-01-20 | Philips Nv | Fluid flow indicator |
| GB1180558A (en) * | 1966-08-03 | 1970-02-04 | Rhodes & Son Ltd B | Improvements in or relating to Fluid-Flow Indicators |
| CN2591359Y (en) * | 2002-12-04 | 2003-12-10 | 曾庆贵 | Damping wear resisting non-return valve |
| CN200986561Y (en) * | 2006-12-18 | 2007-12-05 | 天津市五环仪表厂 | Water flow indicator with visual rotation impeller |
| CN102037365A (en) * | 2008-06-04 | 2011-04-27 | 千住灭火器株式会社 | Flowing-water detector |
| DE102009007652A1 (en) * | 2009-02-03 | 2010-08-26 | Honsberg Instruments Gmbh | Device i.e. flow monitor, for monitoring and/or measuring flow rate of medium i.e. liquid medium, has releasing unit releasing annular gap for liquid medium from flow rate exceeding predetermined threshold value |
| CN202256379U (en) * | 2011-09-30 | 2012-05-30 | 江苏神通阀门股份有限公司 | Backflow-preventing visual flow indicator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |