CN108119679A - Float-type inflow-rate of water turbine shut-off valve - Google Patents
Float-type inflow-rate of water turbine shut-off valve Download PDFInfo
- Publication number
- CN108119679A CN108119679A CN201810115274.3A CN201810115274A CN108119679A CN 108119679 A CN108119679 A CN 108119679A CN 201810115274 A CN201810115274 A CN 201810115274A CN 108119679 A CN108119679 A CN 108119679A
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- Prior art keywords
- valve
- float
- rate
- water turbine
- flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/025—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining open after return of the normal pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Float Valves (AREA)
Abstract
The present invention provides a kind of float-type inflow-rate of water turbine shut-off valve, which solve the intrinsic problem for generally realizing the closing of inflow-rate of water turbine valve using elastic parts in the prior art, because there are flow measuring and controlling low precisions for spring assembly, service life is short, it is unreliable to run, on the market can not extensively using etc. technical problems.It is equipped with flow regulating unit and flow controlling unit, flow regulating unit is equipped with valve deck, valve deck is equipped with adjusting screw rod, adjusting screw rod lower end is equipped with sliding valve core, and valve deck lower end is equipped with bushing, and flow controlling unit is equipped with valve body, rectification set is equipped in valve body, float is equipped in rectification set, valve body lower end is equipped with sewage draining exit, bottom cover is equipped in sewage draining exit.It the composite can be widely applied in the transfer pipeline of heat supply, water supply, supply, oil transportation, chemical industry and other organic medias.
Description
Technical field
The present invention is a kind of float-type inflow-rate of water turbine shut-off valve, belongs to valve field.
Background technology
At this stage, urban heating network is in actual operation due to artificial, system or equipment etc., and there are serious mistakes
Water problems, this not only causes the serious waste of water resource so that and heat cost is also significantly increased, while also to the steady of heating system
Qualitative and security causes extremely disadvantageous influence, such as the heating explosion etc. of pipe burst, user terminal, if cannot find in time
And processing, society or resident will be given to bring serious economic loss or even trigger serious accident.This phenomenon, supply water,
The fields such as supply, oil transportation and chemical industry also generally existing.
In view of the above problems, installing inflow-rate of water turbine protection valve additional in pipe-line system becomes reduction loss, prevention and excludes safety
A kind of effective technological means of hidden danger, a kind of patents of invention of pipeline overcurrent protective valve of application number CN201310170153.6
A kind of overcurrent protective valve is disclosed, is closed using elastic parts come valve when realizing inflow-rate of water turbine, this mode is because groups of springs
The presence of part, has that flow measuring and controlling precision is not high, and service life and runnability are limited by the technical problems such as spring assembly, in city
It is difficult extensive use on field.
The content of the invention
For the present invention in the prior art, inflow-rate of water turbine protection valve generally realizes that inflow-rate of water turbine valve closes using elastic parts
It closes, because the presence of spring assembly, flow measuring and controlling low precision, service life is short, and operation is unreliable, applies on the market seldom,
The technical issues of inflow-rate of water turbine protection can not actually be solved, provides a kind of flow measuring and controlling precision height, and service life is long, can realize i.e.
When, reliably close, can inflow-rate of water turbine protection in widely applied float-type inflow-rate of water turbine shut-off valve.
For this purpose, the technical scheme is that, a kind of float-type inflow-rate of water turbine shut-off valve, including flow regulating unit and flow
Control unit；
Flow regulating unit is equipped with valve deck, and valve deck is equipped with adjusting screw rod, is tightly connected between adjusting screw rod and valve deck, adjusts
It saves screw rod lower end and is equipped with sliding valve core, for adjusting screw rod with sliding valve core using being threadedly coupled, sliding valve core is equipped with guide surface, valve
Spool pilot hole is equipped in lid, valve deck lower end is equipped with bushing；
Flow controlling unit is equipped with valve body, is tightly connected between valve body and valve deck, and valve body is equipped with inlet end and an outlet end,
Rectification set is equipped in valve body, rectification set upper side is connected with seal with buss, and float is equipped in rectification set, and float is equipped with guide rod,
Float can be equipped with sewage draining exit, bottom cover is equipped in sewage draining exit after floating with sliding valve core inner hole, valve body lower end.
Preferably, spool pilot hole is hexagon, and guide surface is the hexagon with the cooperation of spool pilot hole.
Preferably, the upper surface of float can be spherical or taper.
Preferably, sliding valve core lower end is equipped with reflux point.
Preferably, reflux point can be the uniformly distributed small boss of circumferencial direction or thread groove.
The present invention compared with the prior art, has the advantages that：
(1) due to being tightly connected between valve body and valve deck, valve deck is equipped with adjusting screw rod, close between adjusting screw rod and valve deck
Envelope connection, adjusting screw rod lower end are equipped with sliding valve core, and for adjusting screw rod with sliding valve core using being threadedly coupled, valve deck is equipped with spool
Pilot hole, sliding valve core are equipped with guide surface, can set metered flow according to actual demand.
(2) due to valve deck lower end be equipped with bushing, bushing lower end be equipped with rectification set, rectification set in be equipped with float, float with it is whole
Set is flowed for clearance fit, as flow increase float floats in valve, causes the annulus area increase in rectification set, buoyancy subtracts
It is small, it gradually realizes balance, the actual flow value of current fluid is can be determined that by the position for observing float, while realizes valve
Flow measurement function.
(3) when the flow in valve continues to increase, float continues to float, when flow reaches preset metered flow
When, float floats up to upper surface and sliding valve core inner hole, and valve is closed, and realizes the real-time prison of fluid flow variation
Control, accurately and reliably.
(4) sliding valve core lower end is equipped with reflux point, and medium passes through float by small flow at reflux point when the valve is closed
It is disconnected under the action of gravity and upper pressure with sliding valve core, valve is again turned on, and hand again is not had to when emergency releases
Dynamic Open valve realization is resumed work automatically, is saved manpower and materials, is improved work efficiency.
(5) due to being equipped with valve body and valve deck, valve deck, to be bolted, convenient for on-bne repair, it is strong to reduce work with valve body
Degree, improves efficiency.
(6) valve body lower end is equipped with sewage draining exit, and bottom cover is equipped in sewage draining exit, and the two is threadedly coupled, easy to disassemble, idle
When, medium in valve can be emptied, is prolonged the service life.
Description of the drawings
Fig. 1 is the assembly structure diagram of the embodiment of the present invention.
Symbol description in figure：
1. valve body；101. input end；102. the port of export；103. sewage draining exit；2. annulus area；3. valve deck；301. spools are led
Xiang Kong；4. adjusting screw rod；5. sliding valve core；501. guide surface；502. reflux point；6. bushing；7. rectification set；8. float；801.
Guide rod；9. bottom cover.
Specific embodiment
The present invention is described further with reference to embodiment.
Float-type inflow-rate of water turbine shut-off valve, equipped with valve body 1 and valve deck 3, valve body 1 and valve deck 3 are bolted, convenient for online
Maintenance reduces labor intensity.Valve body 1 is equipped with input end 101 and the port of export 102, is tightly connected between valve body 1 and valve deck 3, valve
Lid 3 is equipped with adjusting screw rod 4, is tightly connected between adjusting screw rod 4 and valve deck 3, ensure that internal medium will not be to external sky
Between leak.4 lower end of adjusting screw rod is equipped with sliding valve core 5, and adjusting screw rod 4, using being threadedly coupled, is set with sliding valve core 5 on valve deck 3
There is spool pilot hole 301, sliding valve core 5 is equipped with guide surface 501, spool pilot hole 301 and guide surface 501 and matches somebody with somebody for smooth gap
It closes, and mating surface is hexagon, effectively prevents the relative rotation of valve deck 3 and sliding valve core 5, rotates adjusting screw rod 4, can drive
Sliding valve core 5 is moved up and down along valve deck 3.Under 3 valve deck of valve deck 3 spool pilot hole, 301 spool pilot hole, 301 valve deck, 3 sliding valve core 5
End is equipped with reflux point 502, and reflux point 502 can be the uniformly distributed small boss of circumferencial direction or thread groove, when valve is closed
When, small flow medium can pass through valve.
3 lower end of valve deck is equipped with bushing 6, and 6 upper end of bushing is coordinated with valve deck 3 using seam allowance, 6 endoporus of bushing and sliding valve core 5
Lower end outer circle clearance fit, 6 lower end of bushing are equipped with rectification and cover 7, and bushing 6 coordinates with rectification set 7 for seam allowance, and sealing is equipped at cooperation
Circle is tightly connected between rectification set 7 and valve body, and float 8 is equipped in rectification set 7, and float 8 is equipped with guide rod 801, guide rod
801 cover 7 for clearance fit with rectification, it is ensured that and float 8 freely fluctuates along the direction of guide rod 801, operates steadily,
To neutral good, 8 upper end of float is equipped with annulus area 2, and after valve opening, as flow increases, float 8 rises, and causes annular surface
2 increase of product, buoyancy reduces, and when the pressure that buoyancy=self gravitation+float that float 8 is subject to is subject to, realizes balance, according to
The location of float 8 may determine that flow value, realize the function of flowmeter.If flow continues to increase, on float 8 continues
Floating, when flow reaches preset metered flow, float 8 floats up to upper surface and 5 inner hole of sliding valve core, and valve closes
It closes, realizes the real time monitoring to changes in flow rate, accurately and reliably.
The junction of adjusting screw rod 4 and sliding valve core 5 be coarse thread, can be rapidly and efficiently to setting flow adjust
It is whole.1 lower end of valve body is equipped with sewage draining exit 103, and bottom cover 9 is equipped in sewage draining exit 103, can will be in valve by dismantling bottom cover 9 when idle
The medium discharge of portion remnants, bottom cover 9 are coordinated with sewage draining exit 103 using straight pipe thread.
By more than structure, according to actual demand, adjusting screw rod 4 is rotated, sliding valve core 5 is moved to certain position, i.e.,
Complete the setting of metered flow.
Medium is smoothly acted on float 8 by the input end 101 of valve body 1 by rectification set 7, and float 8 is subject to buoyancy
F1 is also subject to self gravitation W and acts on power F2 downward on float 8, and with the increase of pumped (conveying) medium flow, float 8 floats,
Annulus area 2 is caused to increase, F1 reduces, and finally realizes F1=W+F2, equilibrium state is issued in certain flow, i.e. float 8
Flow meter function, flow is different, and the location of float 8 is different.
When client dehydration, end flow increase of registering one's residence causes float 8 to continue to rise, when reaching the metered flow of setting,
Float 8 coordinates with sliding valve core 5, Shuttoff Valve, because sliding valve core 5 is equipped with reflux point 502, when valve is closed, slides
There is the medium of small flow between spool 5 and float 8 by realizing small flow operation, buoyancy F1 reduces, and float 8 is in buoyancy
It F1, self gravitation W and acts on and departs from sliding valve core 5 under the collective effect of power F2 downward on float 8, valve is resumed work shape
State does not have to again manually opened valve realization when emergency releases and resumes work automatically, saves manpower and materials, improve work
Make efficiency.
Only as described above, is only specific embodiments of the present invention, when cannot limit the model implemented of the present invention with this
It encloses, therefore the displacement of its equivalent assemblies or the equivalent variations made according to scope of patent protection of the present invention and modification, it should all still fall within this
The scope that invention claims are covered.
Claims (5)
1. float-type inflow-rate of water turbine shut-off valve, including flow regulating unit and flow controlling unit；
The flow regulating unit is equipped with valve deck, and the valve deck is equipped with adjusting screw rod, close between the adjusting screw rod and valve deck
Envelope connection, the adjusting screw rod lower end are equipped with sliding valve core, and the adjusting screw rod is used with sliding valve core and is threadedly coupled, the cunning
Movable valve plug is equipped with guide surface, and spool pilot hole is equipped in the valve deck, and the valve deck lower end is equipped with bushing；
The flow controlling unit is equipped with valve body, is tightly connected between the valve body and valve deck, and the valve body is equipped with input end
And the port of export, the valve body is interior to be equipped with rectification set, and the rectification set upper side is connected with seal with buss, is equipped with and floats in the rectification set
Son, the float are equipped with guide rod, and the float can be equipped with row after floating with sliding valve core inner hole, the valve body lower end
Dirty mouth, the sewage draining exit is interior to be equipped with bottom cover.
2. float-type inflow-rate of water turbine shut-off valve according to claim 1, which is characterized in that the upper surface of the float can be
It is spherical or taper.
3. float-type inflow-rate of water turbine shut-off valve according to claim 1, which is characterized in that the spool pilot hole is six sides
Shape, the hexagon that the guide surface is and spool pilot hole coordinates.
4. float-type inflow-rate of water turbine shut-off valve according to claim 1, which is characterized in that the sliding valve core lower end is equipped with back
Flow point.
5. float-type inflow-rate of water turbine shut-off valve according to claim 4, which is characterized in that the reflux point can be circumference side
To uniformly distributed small boss or thread groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810115274.3A CN108119679A (en) | 2018-02-06 | 2018-02-06 | Float-type inflow-rate of water turbine shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810115274.3A CN108119679A (en) | 2018-02-06 | 2018-02-06 | Float-type inflow-rate of water turbine shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119679A true CN108119679A (en) | 2018-06-05 |
Family
ID=62233549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810115274.3A Pending CN108119679A (en) | 2018-02-06 | 2018-02-06 | Float-type inflow-rate of water turbine shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008313A (en) * | 2021-02-22 | 2021-06-22 | 杭州电子科技大学 | Flowmeter with arbitrary installation angle |
-
2018
- 2018-02-06 CN CN201810115274.3A patent/CN108119679A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008313A (en) * | 2021-02-22 | 2021-06-22 | 杭州电子科技大学 | Flowmeter with arbitrary installation angle |
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