CN106089787A - A kind of bottom valve device - Google Patents
A kind of bottom valve device Download PDFInfo
- Publication number
- CN106089787A CN106089787A CN201610479766.1A CN201610479766A CN106089787A CN 106089787 A CN106089787 A CN 106089787A CN 201610479766 A CN201610479766 A CN 201610479766A CN 106089787 A CN106089787 A CN 106089787A
- Authority
- CN
- China
- Prior art keywords
- bottom valve
- water inlet
- inlet pipe
- water
- valve device
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
Abstract
The open a kind of bottom valve device of the present invention, is characterized in that on the basis of conventional centrifugal pump bottom valve device, the pipeline between bottom valve and centrifugal pump arranges a joint flexible pipe, then bottom valve is connected on a flotation gear.Its operation principle is: flotation gear is by buoyancy, can fluctuate along with the SEA LEVEL VARIATION in pond, under the effect of flexible pipe, bottom valve and water inlet pipe can upper and lower swings in the range of certain amplitude, therefore, even if bottom valve is placed on the position that distance liquid level is shallower, in the case of water level in water pool declines, bottom valve can be kept all the time to be less than pond liquid level.Bottom valve installation site can be shallower apart from pond liquid level, when bottom valve break down need maintenance time, have only to a bottom valve pull down taking-up from water inlet pipe end and keep in repair, pull down without whole piece water inlet pipe, and the buoyancy of flotation gear can hold up water inlet pipe end, need not by lifting gear during dismounting bottom valve, thus greatly facilitate the service work of bottom valve.
Description
Technical field
The invention belongs to water-saving irrigation hydraulic engineering field, be specifically related to a kind of bottom valve device.
Background technology
Centrifugal pump is the fluid delivery device that water-saving irrigation project is most commonly used, its start work time, pump housing inner chamber with enter
Water must be filled in waterpipe, impeller just can be made to produce enough centrifugal force, water is exported.If pump housing inner chamber and inlet channel
Having air, the gas in inlet channel mixes with water, and the impeller surface at high-speed cruising produces cavitation, causes water pump to damage.Institute
With, centrifugal pump is before activation, it should be ensured that must fill water in pump housing inner chamber and inlet channel and restart.For avoiding each centrifugal pump
It is required for before startup pouring water in pump housing inner chamber and inlet channel and consuming substantial amounts of manpower, it is necessary at water inlet pipe mouth, be installed the end
Valve.Bottom valve, the one of check-valves, play the water backflow prevented in pump, keep water level in pump to be in the effect of the state of filling, typically
It is arranged on the end of inlet channel.
Because being affected by microorganism in water source, algae, impurity etc., cause filter screen part to silt up, bottom valve poorly sealed, go out
The phenomenon now leaked；Or because bottom valve encapsulant is aging, poorly sealed, the phenomenon leaked occurs, these situations lead to from
The minimizing of heart pump lifting rate does not even absorb water, and cavitation occurs.There is this situation in centrifugal pump, it is necessary to shut down, bottom valve from water
Middle taking-up, overhauls or changes, and clean filter screen.Owing to bottom valve is under water, the farmland that particularly irrigation water capacity is big, pond liquid
Face declines fast, and for ensureing that water inlet is under liquid level for a long time, bottom valve is often placed on the deepest position.If bottom valve needs
Maintenance, filter screen need to clean, it is necessary to the water inlet pipe going deep into pond is pulled down, bottom valve could be taken out, due to Heavy Weight, water inlet pipe
Dismounting with bottom valve and reinstalling is wasted time and energy, and maintenance inconvenience, cost is high.
Summary of the invention
It is an object of the invention to open a kind of convenient bottom valve device of repair and maintenance.
The technical scheme is that and a joint flexible pipe is set on the pipeline between bottom valve and centrifugal pump, then bottom valve
It is connected on a flotation gear, thus constitutes and overhaul bottom valve device easily.Its operation principle is: flotation gear is by floating
Power effect, it is possible to fluctuate along with the SEA LEVEL VARIATION in pond, under the effect of flexible pipe, bottom valve and water inlet pipe can be necessarily
Upper and lower swing in amplitude range, therefore, even if bottom valve is placed on the position that distance liquid level is shallower, in the feelings that water level in water pool declines
Under condition, bottom valve can be kept all the time to be less than pond liquid level.Owing to bottom valve distance pond liquid level is shallower, when bottom valve breaks down needs
During maintenance, it is only necessary to bottom valve is pulled down taking-up from water inlet pipe end and keeps in repair, pull down without whole piece water inlet pipe, and drift
The buoyancy of floating device can hold up water inlet pipe, need not by lifting gear, it is not required that great Liang Ren during dismounting bottom valve
Power, so that the service work of bottom valve becomes simple.
Described flexible pipe, is to have certain elasticity, it is possible to the flexible pipe of alternating bending, can be rubber tube or plastic cement
Flexible pipe, such as fabric enhancement mode rubber tube, PVC steel wire tube etc..Overhaul and improve sealing, flexible pipe and water inlet pipe for convenience
Use the connected mode of flange screw thread.
Described flotation gear, as long as the buoyancy of its generation submerged in water drag can act water inlet pipe and the end filling water
Valve just can use, and can be hollow plastic material or the sphere of metal material, box like thing or tub, or their multiple groups
Compound.Because its long period of soaking is in water, flotation gear requires have certain corrosion resistance and service life.Flotation gear is with moulding
Material rope or steel wire rope are bundled on the flange that bottom valve is connected with water inlet pipe.
Accompanying drawing explanation
Fig. 1 is conventional bottom valve device；
Fig. 2 is ball float bottom valve device of the present invention；
Fig. 3 is the platform-type floating bottom valve device top view of the present invention；
Fig. 4 is the platform-type floating bottom valve device front view of the present invention；
The parts of numbering representative in figure: 1 flexible pipe；2 bottom valves；3 ball floats；4 flanges；5 feed pipes；6 elbow bends；7 ropes.
Detailed description of the invention
Embodiment 1
Such as the bottom valve device of Fig. 2, it is made up of rubber tube, feed pipe, elbow bend, bottom valve and ball float with filter screen.Feed pipe
Being PE material with elbow bend, feed pipe uses the mode of hot melting cohesion to be connected with elbow bend；Rubber tube uses with feed pipe
The connected mode of flange screw thread；Elbow bend uses the connected mode of flange screw thread with bottom valve, actual according to pond peak level
Situation, can increase by a joint feed pipe between elbow bend and bottom valve, so that bottom valve can be immersed under water.Ball float uses hard to mould
Material material or metal material, pinion the bottom of ball float and elbow bend, can increase according to buoyancy situation with plastic ties or steel wire rope
The quantity of ball float.The advantage of this device is simple in construction, low cost, ball float and bottom valve can be according to the change of water level in water pool on
Lower floating, bottom valve is constant with the distance of the water surface, and during maintenance bottom valve, personnel can take off bottom valve very easily from flange.No
When the place of foot is handling bottom valve, personnel do not have the strong point, need by the floating instrument such as canoe, bamboo raft.
Embodiment 2
Platform-type floating bottom valve device, its operation principle is identical with the ball float bottom valve device operation principle of embodiment 1.Difference
It is that, for convenience of personnel's maintenance to bottom valve, flotation gear uses platform-type flotation gear, and platform-type flotation gear can be by many
Individual (2～8) plastic box buoyancy aid forms.As shown in Figure 3 and Figure 4, by 8 plastic box buoyancy aids and several steel pipe, use symmetrical or
The arrangement mode of near symmetrical is fixed, and (individual plastic case buoyancy aid market is on sale, fluted and solid on buoyancy aid for composition flotation gear
Determine hole, can placing steel tubes, use binding and the mode of clip or the fixing mode of scaffold, multiple buoyancy aids can be fixed).The end
The installation method of valve and pipeline is same as in Example 1, as Fig. 3 and Fig. 4 puts into bottom valve device on flotation gear, with rope the end of
Flange above valve is tied up on the steel pipe of flotation gear.When bottom valve needs maintenance, staff can go to floating along pipeline
On platform, stand on platform, pull down the nut of flange, it is possible to take off bottom valve very easily.
Above example is the two schemes of the present invention, and unrestricted.In the know-why of the present invention, can to more than
Technical scheme described in embodiment is modified, or replaces portion of techniques feature therein on an equal basis, these amendment or
Displacement, both falls within technical scheme scope.
Claims (4)
1. bottom valve device, is characterized in that, the pipeline between bottom valve and centrifugal pump is provided with a joint flexible pipe, and with rope with
The flotation gear that the binding of bottom valve upper flange connects.
Bottom valve device the most according to claim 1, it is characterised in that described flexible pipe is rubber tube or plastic hose,
Flexible pipe uses the connected mode of flange screw thread with water inlet pipe.
Bottom valve device the most according to claim 1, it is characterised in that described flotation gear is hollow ball-shape thing, box like
Thing, tub or their multiple compositionss.
4. according to the bottom valve device described in claim 1 or 3, it is characterised in that described flotation gear, by 2～8 plastic boxes
Shape buoyancy aid and several steel pipe use symmetrical or near symmetrical arrangement mode to fix and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479766.1A CN106089787A (en) | 2016-06-28 | 2016-06-28 | A kind of bottom valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479766.1A CN106089787A (en) | 2016-06-28 | 2016-06-28 | A kind of bottom valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089787A true CN106089787A (en) | 2016-11-09 |
Family
ID=57253135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610479766.1A Pending CN106089787A (en) | 2016-06-28 | 2016-06-28 | A kind of bottom valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106089787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177129A (en) * | 2020-09-18 | 2021-01-05 | 皖建生态环境建设有限公司 | Sponge city rain and flood drainage system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081906U (en) * | 1990-08-21 | 1991-07-31 | 青海省新能源研究所 | Total-enclosed floating pump |
| CN201162696Y (en) * | 2007-11-28 | 2008-12-10 | 河南中孚实业股份有限公司 | Floating mobile water pump water suction device |
| WO2009109305A2 (en) * | 2008-03-07 | 2009-09-11 | Grundfos Management A/S | Floatable pump unit |
| CN201696328U (en) * | 2010-06-11 | 2011-01-05 | 芜湖瑞创投资股份有限公司 | Water intake apparatus of farmland irrigation pump |
-
2016
- 2016-06-28 CN CN201610479766.1A patent/CN106089787A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081906U (en) * | 1990-08-21 | 1991-07-31 | 青海省新能源研究所 | Total-enclosed floating pump |
| CN201162696Y (en) * | 2007-11-28 | 2008-12-10 | 河南中孚实业股份有限公司 | Floating mobile water pump water suction device |
| WO2009109305A2 (en) * | 2008-03-07 | 2009-09-11 | Grundfos Management A/S | Floatable pump unit |
| CN201696328U (en) * | 2010-06-11 | 2011-01-05 | 芜湖瑞创投资股份有限公司 | Water intake apparatus of farmland irrigation pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177129A (en) * | 2020-09-18 | 2021-01-05 | 皖建生态环境建设有限公司 | Sponge city rain and flood drainage system |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |
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| WD01 | Invention patent application deemed withdrawn after publication |