CN109538795A - A kind of float type check valve - Google Patents
A kind of float type check valve Download PDFInfo
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- CN109538795A CN109538795A CN201810975300.XA CN201810975300A CN109538795A CN 109538795 A CN109538795 A CN 109538795A CN 201810975300 A CN201810975300 A CN 201810975300A CN 109538795 A CN109538795 A CN 109538795A
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- Prior art keywords
- floating ball
- hand basket
- diameter
- float type
- type check
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- 238000007667 floating Methods 0.000 claims abstract description 73
- 238000007789 sealing Methods 0.000 claims abstract description 22
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims abstract description 7
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 239000000463 material Substances 0.000 description 20
- 230000005484 gravity Effects 0.000 description 13
- 239000012530 fluid Substances 0.000 description 11
- 239000004810 polytetrafluoroethylene Substances 0.000 description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- 239000010935 stainless steel Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- -1 polytetrafluoroethylene Polymers 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/048—Ball features
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of float type check valves, including upper valve body, spiral stream guidance cylinder, valve seat, floating ball, hand basket, lower valve body, O-ring seal, flange seal gasket, studs, nut, elastic washer, spiral stream guidance cylinder top is truncated cone-shaped, its outside is equipped with two and gradually opens spiral helicine fuisw rib, there are a certain number of apertures on the cylindrical surface of middle part, lower part is bonded with the chamfering for being equipped with certain angle at bottom surface corner with the valve seat, the valve seat is in inverted funnel shape, its internal orifice raises upward and lower edge is spherical seal surface, the sphere diameter of sealing surface is identical as the floating ball sphere diameter, the hand basket bottom is rounded, there are a certain number of apertures on surrounding cylindrical surface, the floating ball diameter is more smaller than hand basket internal diameter to be placed in hand basket.Float type check valve proposed by the present invention has many advantages, such as that resistance coefficient is low, applied widely, non-return effect is good, long service life, has self-cleaning ability.
Description
Technical field
The present invention relates to Naval Architecture and Ocean Engineering, petroleum chemical engineering, water & wastewater engineering for building fields, in particular to a kind of
The float type check valve of low resistance coefficient.
Background technique
Often it is related to gravity in above-mentioned technical field to release pipeline, often needs to use with low cracking pressure and low resistance coefficient
Check-valves, the pipeline discharge that should guarantee to release is unimpeded, prevents liquid from flowing backwards pollution upstream or causing the accident again.Due to passing through
Streamline around round floating ball is very smooth, and coefficient of partial resistance is smaller compared to the coefficient of partial resistance of other forms flap,
Therefore float type check valve is particularly suited for gravity and releases pipeline.
As shown in Figure 1, the float type check valve 10 of the prior art is by lower valve body 1, upper valve body 2, floating ball 3, block 4, funnel
Shape sealing gasket 5, nut 6, elastic washer 7, studs 8 form.2 inner wall of upper valve body is equipped with several blocks 4, in lower valve body 1
Wall is equipped with infundibulate sealing gasket 5, and floating ball 3 is between the infundibulate sealing gasket 5 in upper valve body block 4 and lower valve body 2.Into
When liquid, under the action of fluid pressure differential, floating ball 3 overcomes self gravity to float, and is stopped at the block 4 of upper valve body, fluid
From being flowed through in the gap of block 4 and floating ball 3；When stopping feed liquor, floating ball 3 enters under self gravity and the effect of fluid buffer brake
In lower valve body conical funnel 5, funnel is blocked to prevent liquid from continuing to flow backwards.
Existing float type check valve mainly has the disadvantage that and deficiency:
1, normal flow direction of the liquid in the check-valves is from bottom to top, to need top-down tendency phase with gravity bleeder pipe
Instead, it is not easy to pipeline arrangement；
2, used floating ball is heavier with respect to the specific gravity of applicable liquid, i.e. the gravity G of floating ball is greater than floating ball total flooding in a liquid
When buoyancy F.To make the normally-open work of the valve, the fluid pressure of lower end inlet is in addition to needing to overcome liquid floating
The static pressure that ball is generated with liquid in upper pipeline, the static pressure that also overcome the difference of floating ball G and buoyancy F to generate are unfavorable
It releases the unimpeded discharge of pipeline in gravity, pipeline drop is possibly even not enough to open floating in the small static pressure that inlet generates
Ball forms stable flowing；
3, upward, silt or other impurities in gravity bleeder pipe are easy to deposit at valve seat funnel shaped valve seat, easily lead to floating
It is poorly sealed when ball is taken a seat；
4, when fluid proper flow, floating ball is fixedly stuck at block, easily lead to floating ball only fluoran stream surface and lee side by
To extruding force, and two sides stress is relatively small, easily leads to floating ball circularity due to discontinuity for a long time and declines, and then causes to float
It is poorly sealed when ball is taken a seat；
5, when floating ball is taken a seat, the contact surface of floating ball and conical funnel is smaller, and sealing effect is not good enough.
In conclusion applicability of the float type check valve 10 of prior art on gravity bleeder pipe road is very poor.
The disclosure of background above technology is only used for auxiliary and understands design and technical solution of the invention, not necessarily belongs to
The prior art of the present patent application shows that above content has disclosed in the applying date of present patent application in no tangible proof
In the case where, above-mentioned background technique should not be taken to the novelty and creativeness of evaluation the application.
Summary of the invention
In order to overcome the shortcomings of the prior art, that the invention proposes a kind of resistance coefficients is low, applied widely, only
Return that effect is good, long service life, the float type check valve with self-cleaning ability.
In order to achieve the above object, the invention adopts the following technical scheme:
The invention discloses a kind of float type check valve, including upper valve body, spiral stream guidance cylinder, valve seat, floating ball, hand basket, lower valve body,
O-ring seal, flange seal gasket, studs, nut, elastic washer.Spiral stream guidance cylinder top is truncated cone-shaped, outside
Side is equipped with two and gradually opens spiral helicine fuisw rib, and aperture is covered on the cylindrical surface of middle part, is equipped with certain angle at lower part and bottom surface corner
The chamfering of degree is bonded with the valve seat；The valve seat is in inverted funnel shape, and internal orifice raises upward and lower edge is spherical seal surface, close
The sphere diameter of cover is identical as the floating ball sphere diameter, and valve seat upper and lower surface is equipped with annular groove at flange sealing surface；The hand basket
Bottom is rounded, and surrounding is covered with aperture on cylindrical surface, is placed on the flange face of lower valve body；The floating ball diameter is than in hand basket
Diameter is smaller to be placed in hand basket；The O-ring seal is placed in the annular groove up and down of valve seat, realizes valve seat and hand basket and spiral
Sealing between guide shell；The flange seal gasket is placed between guide shell and the contact surface of upper valve body and hand basket and lower valve body
Between；The other component that the studs, nut and elastic washer are used to connect lower valve body and compress therebetween is close to be formed
Envelope.
Preferably, spiral stream guidance cylinder uses stainless steel material, and thickness is about 3 millimeters, and small aperture is 6 millimeters thereon, leads
Effective flow area of flow cartridge be greater than valve nominal diameter 2.5 times of counted nominal flow area.
Preferably, valve seat uses brass material, and spherical seal surface sphere diameter is consistent with floating ball, and internal orifice upper surface raises upward
Angle is about 45 degree.
Preferably, floating ball uses stainless steel material, and floating ball diameter is about 1.5 times of valve inside nominal diameter, and floating ball is full
Make under sufficient normal temperature and pressure floating ball in hydrostatic at least half expose the surface it is above.
Preferably, hand basket uses stainless steel material, and small aperture is about 6mm thereon, and effective flow area of hand basket is greater than
Valve inside nominal diameter 2.5 times of counted nominal flow area.
Preferably, flange seal gasket and O-ring seal use polytetrafluoroethylene (PTFE) material.
Preferably, for connecting totally 12 sets of studs, nut and elastic washer of upper lower valve body, wherein 3 sets shorter
Studs is evenly distributed on the bolt hole circumference of flange in 120 degree, is only used for positioning and connecting upper valve body and valve seat.
It compared with prior art, is upper the beneficial effects of the present invention are: the flow direction of float type check valve of the present invention
Into it is lower go out, meet gravity release pipeline from top to bottom pipeline trend, convenient for pipeline arrange；When fluid flows from above to below,
Under the action of spiral stream guidance cylinder, helical form streamline is formed inside upper valve body, can be used for rinsing the water storage tank of guide shell bottom, it will
Short grained sediment washes away；Biggish solid particulate matter is prevented to be deposited at the water storage tank of guide shell bottom simultaneously, under protection
The floating ball of trip extends the service life of floating ball from the strike of larger foreign matter；Water flow is at spiral stream guidance cylinder, and rotation decline is only
It goes back to valve upper end inlet and forms certain whirlpool, certain swabbing action is generated to the fluid of upstream, keep draining more unobstructed；Water
Stream enters valve seat entrance after rebounding at the water storage tank of spiral stream guidance cylinder bottom, can effectively reduce the speed of water flow, avoids flow velocity
The service life of floating ball is extended to the impact of floating ball greatly very much；Floating ball is placed in hand basket, swims in hand basket bottom due to spiral helicine
The impact of water flow is allowed to make the surface of floating ball by uniform impact force in spin states, unbalance stress is avoided to cause circularity
Decline further extends the service life of floating ball；Valve seat is in inverted funnel shape, can avoid impurity and deposits at sealing surface, makes floating ball
Better non-return effect is obtained when taking a seat.
In the preferred scheme, spiral stream guidance cylinder and the net flow area of hand basket are all larger than the counted net through-flow face of pipeline drift diameter
Long-pending 2.5 times, and it has been covered with about 6 millimeters of aperture, the resistance generated to water flow is very small, is conducive to unobstructed draining.
In the preferred scheme, using metal and polytetrafluoroethylene (PTFE) material, intensity, durability and the high temperature resistance of material
All very well, long service life is suitable for various complicated environmental conditions.
In the preferred scheme, buoyancy of the buoyancy of floating ball in clear water when total flooding is greater than 2 times of floating ball, therefore
There are enough pressing forces to act on to provide reliable sealing on sealing surface, to obtain good non-return effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the float type check valve 10 of the prior art.
Fig. 2 is the structural schematic diagram of the float type check valve 20 of the preferred embodiment of the present invention 1.
Fig. 3 is the 20 three-dimensional artificial streamline schematic diagram of float type check valve of the preferred embodiment of the present invention 1.
Specific embodiment
Below against attached drawing and in conjunction with preferred embodiment, the invention will be further described.
The invention discloses a kind of float type check valve, including upper valve body, spiral stream guidance cylinder, valve seat, floating ball, hand basket, under
Valve body, O-ring seal, flange seal gasket, studs, nut, elastic washer.Spiral stream guidance cylinder top is rotary table
Shape, outside are equipped with two and gradually open spiral helicine fuisw rib, aperture is covered on the cylindrical surface of middle part, is equipped at lower part and bottom surface corner
The chamfering of certain angle is bonded with the valve seat；The valve seat is in inverted funnel shape, and internal orifice raises upward and lower edge is spherical close
Cover, the sphere diameter of sealing surface is identical as the floating ball sphere diameter, and valve seat upper and lower surface is equipped with annular groove at flange sealing surface；Institute
It is rounded to state hand basket bottom, surrounding is covered with aperture on cylindrical surface, is placed on the flange face of lower valve body；The floating ball diameter ratio
Hand basket internal diameter is smaller to be placed in hand basket；The O-ring seal is placed in the annular groove up and down of valve seat, realizes valve seat and hand basket
Sealing between spiral stream guidance cylinder；The flange seal gasket be placed between guide shell and the contact surface of upper valve body and hand basket with
Between lower valve body；The studs, nut and elastic washer be used to connect lower valve body and compress other component therebetween with
Form sealing.
In some embodiments, spiral stream guidance cylinder uses stainless steel material, and thickness is about 3 millimeters, and small aperture is 6 thereon
Millimeter, effective flow area of guide shell be greater than valve nominal diameter 2.5 times of counted nominal flow area.
In some embodiments, valve seat use brass material, spherical seal surface sphere diameter is consistent with floating ball, internal orifice upper surface to
The angle of upper protrusion is about 45 degree.
In some embodiments, floating ball uses stainless steel material, and floating ball diameter is about 1.5 times of valve inside nominal diameter, floats
Ball self weight meet make under normal temperature and pressure floating ball in hydrostatic at least half expose the surface it is above.
In some embodiments, hand basket uses stainless steel material, and small aperture is about 6 millimeters thereon, and the effective of hand basket is led to
Flow area be greater than valve inside nominal diameter 2.5 times of counted nominal flow area.
In some embodiments, flange seal gasket and O-ring seal use polytetrafluoroethylene (PTFE) material.
In some embodiments, for connecting totally 12 sets of studs, nut and elastic washer of upper lower valve body, wherein 3
Shorter studs is covered to be evenly distributed on the bolt hole circumference of flange in 120 degree, be only used for positioning and connect upper valve body and
Valve seat.
As shown in Fig. 2, the preferred embodiment of the present invention discloses a kind of float type check valve 20, including upper valve body 21, spiral
Guide shell 22, valve seat 23, floating ball 24, hand basket 25, lower valve body 26, O-ring seal 27, flange seal gasket 28, studs 29,
Nut 30, elastic washer 31, short studs 32.Spiral stream guidance cylinder 22 uses stainless steel material, and top is truncated cone-shaped, outside
Spiral helicine fuisw rib is gradually opened equipped with two, the aperture that diameter is 6 millimeters is covered on the cylindrical surface of middle part, the effective of whole apertures is led to
Flow area is 2.5 times of the counted nominal flow area of valve nominal diameter, at lower part and bottom surface corner equipped with 45 degree
Angle is bonded with valve seat 23；Valve seat 23 uses brass material, is in inverted funnel shape, and internal orifice is in oblique 45 degree of protrusions upwards, and lower edge is ball
Shape sealing surface, the sphere diameter of sealing surface is identical as 24 sphere diameter of floating ball, and 23 upper and lower surface of valve seat is equipped with ring at flange sealing surface
Connected in star；25 bottom of hand basket is rounded, and the aperture that diameter is 6 millimeters is covered on surrounding cylindrical surface, is placed in lower valve body 26
On flange face；Floating ball 24 uses stainless steel material, and 1.5 times of a diameter of valve inside nominal diameter, it is normal that floating ball meets room temperature
Pressure makes floating ball at least half in hydrostatic expose the surface above, and the diameter of floating ball 24 is more smaller than 25 internal diameter of hand basket is placed in
Wherein；O-ring seal 27 uses polytetrafluoroethylene (PTFE) material, is placed in the annular groove up and down of valve seat 23, realizes valve seat 23 and mentions
Sealing between basket 25 and spiral stream guidance cylinder 22；Flange seal gasket 28 use polytetrafluoroethylene (PTFE) material, be placed in guide shell 22 with
Between the contact surface of upper valve body 21 between hand basket 25 and lower valve body 26；Studs 29, nut 30 and elastic washer 31 are adopted
With stainless steel material, sealed for connecting upper valve body 21 and lower valve body 26 and compressing other component therebetween with being formed.It is 3 sets shorter
Studs 32 be evenly distributed on the bolt hole circumference of valve flange in 120 degree, be only used for positioning and connection upper valve body 21
With valve seat 23.
A kind of working principle of float type check valve 20 disclosed in the preferred embodiment of the present invention is as follows:
Sewage is flowed into from the upper end inlet of upper valve body 21, under the guide functions of the fuisw rib on spiral stream guidance cylinder 22, water flow
Decline in the shape of a spiral, solid dirt of the diameter greater than 6 millimeters will be unable to the aperture into cover board, into specific gravity such as the sandstones of floor drain
Biggish solid dirt falls into precipitating frid 27 first and precipitates in the groove near 21 inner wall of ontology, and clear water then covers precipitating
It overflows into the hand basket 22 inside floor drain on the slope of frid 27.22 bottom of hand basket is hemispherical and is filled with clear water, and floating ball 23 exposes water
Face more than half and swim in 22 bottom of hand basket, since aperture is unevenly distributed on cover board 29, make to fall into inside hand basket 22
Water flow size is uneven, and floating ball 23 is pushed to rotate in hand basket 22.Water flow is empty along the aperture of floating ball spherical surface from 22 surrounding of hand basket
Outflow in gap, exports finally by 21 lower end of ontology and is discharged, and the streamline distribution of discharge process fluid is as shown in Figure 3.When sewage from
When floor drain bottom is up flowed backward, floating ball 23 floats up to the spherical sealed of seal receptacle 24 under the guiding role of buoyancy and hand basket 22
At face, floating ball 23 is fitted closely with seal receptacle 24, is blocked sewage and is up spilt on ground, and the pressure of back-flushed waste disposal is bigger, is floated
Ball 23 is bonded closer with seal receptacle 24, and sealing effect is better.
A kind of specific advantage of float type check valve 20 disclosed in the preferred embodiment of the present invention is as follows:
The flow direction of float type check valve 20 be upper entering and lower leaving, meet gravity release pipeline from top to bottom pipeline trend, convenient for pipe
Road arrangement；When fluid flows from above to below, under the action of spiral stream guidance cylinder 22, helical form stream is formed inside upper valve body 21
Line can be used for rinsing the water storage tank of 22 bottom of guide shell, and short grained sediment is washed away, and the streamline of fluid is as shown in Figure 3；Together
When, the aperture on spiral stream guidance cylinder 22 plays the role of similar strainer, and biggish solid particulate matter is prevented to be deposited in guide shell bottom
It at the water storage tank in portion, protects the floating ball 24 in downstream from the strike of larger foreign matter, extends the service life of floating ball 24；Water flow is in spiral shell
It revolves and rotates decline at guide shell 22, form certain whirlpool in 20 upper end inlet of check-valves, the fluid of upstream is generated certain
Swabbing action, make draining it is more unobstructed；Water flow enters valve seat 23 after rebounding at the water storage tank of 22 bottom of spiral stream guidance cylinder
Entrance can effectively reduce the speed of water flow, avoid impact of the flow velocity too greatly to floating ball 24, extend the service life of floating ball 24；It is floating
Ball 24 is placed in hand basket 25 and swims in the bottom of hand basket 25, due to the impact of spiral helicine water flow, is allowed in spin states,
Make the surface of floating ball 24 by uniform impact force, avoid unbalance stress that circularity is caused to decline, further extends making for floating ball 24
Use the service life；Valve seat 23 is in inverted funnel shape, can avoid impurity and deposits at sealing surface, floating ball 24 is made to obtain better non-return when taking a seat
Effect；Spiral stream guidance cylinder 22 and the net flow area of hand basket 25 are all larger than 2.5 times of the counted net flow area of pipeline drift diameter, and cloth
The aperture for having reach about 6 millimeters is very small to the resistance of water flow generation to be conducive to unobstructed draining；Each components use metal or poly- four
Vinyl fluoride material, the intensity of material, durability and high temperature resistance are all fine, long service life, are suitable for various complex environments
Condition；Buoyancy of the buoyancy of floating ball 24 in clear water when total flooding is greater than 2 times of floating ball, therefore has enough compression masterpieces
It is reliably sealed on sealing surface with providing, to obtain good non-return effect.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those skilled in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, several equivalent substitute or obvious modifications can also be made, and performance or use is identical, all answered
When being considered as belonging to protection scope of the present invention.
Claims (5)
1. a kind of float type check valve, including upper valve body, spiral stream guidance cylinder, valve seat, floating ball, hand basket, lower valve body, O-ring seal,
Flange seal gasket, studs, nut, elastic washer, spiral stream guidance cylinder top are truncated cone-shaped, and outside is equipped with two
Spiral helicine fuisw rib is gradually opened, there are a certain number of apertures on the cylindrical surface of middle part, is equipped with certain angle at lower part and bottom surface corner
Chamfering be bonded with the valve seat, the valve seat be in inverted funnel shape, internal orifice raise upward and lower edge be spherical seal surface, sealing
The sphere diameter in face is identical as the floating ball sphere diameter, and the hand basket bottom is rounded, there is a certain number of apertures on surrounding cylindrical surface,
The floating ball diameter is more smaller than hand basket internal diameter to be placed in hand basket.
2. a kind of float type check valve according to claim, it is characterised in that: effective flow area of guide shell is greater than
The counted nominal flow area of valve nominal diameter institute.
3. a kind of float type check valve according to claim, it is characterised in that: floating ball diameter is about valve inside nominal diameter
1.5 times, floating ball meet make under normal temperature and pressure floating ball in hydrostatic at least half expose the surface it is above.
4. a kind of float type check valve according to claim, it is characterised in that: effective flow area of hand basket is greater than valve
The counted nominal flow area of door inside nominal diameter institute.
5. a kind of float type check valve according to claim, it is characterised in that: 3 sets of shorter studs are in 120 degree
It is evenly distributed on the bolt hole circumference of flange, is only used for positioning and connecting upper valve body and valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975300.XA CN109538795A (en) | 2018-08-24 | 2018-08-24 | A kind of float type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975300.XA CN109538795A (en) | 2018-08-24 | 2018-08-24 | A kind of float type check valve |
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| Publication Number | Publication Date |
|---|---|
| CN109538795A true CN109538795A (en) | 2019-03-29 |
Family
ID=65838964
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810975300.XA Withdrawn CN109538795A (en) | 2018-08-24 | 2018-08-24 | A kind of float type check valve |
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| CN (1) | CN109538795A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253825A (en) * | 2020-10-22 | 2021-01-22 | 华光阀门有限公司 | Exhaust valve capable of improving exhaust efficiency |
| CN113431953A (en) * | 2021-07-13 | 2021-09-24 | 安庆泰悦机械科技有限公司 | Rectifying vortex steepest curve check valve |
| EP4365451A1 (en) * | 2022-11-02 | 2024-05-08 | Danfoss A/S | Check valve and hydraulic gerotoror geroler machine |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1457580A (en) * | 1922-01-12 | 1923-06-05 | Kurtz Stanley | Sewer-trap valve |
| US1996398A (en) * | 1933-05-09 | 1935-04-02 | Barzyk Richard | Valve |
| US2524501A (en) * | 1946-08-29 | 1950-10-03 | Adam J Wilhelm | Floor drain valve |
| DE2157652A1 (en) * | 1971-11-20 | 1973-05-24 | Karl Meier | APPLICABLE FLOOR DRAIN IN A BRICK-IN HOUSING |
| JPH09292042A (en) * | 1996-02-29 | 1997-11-11 | Toyota Motor Corp | Manufacture of check valve |
| CN201043288Y (en) * | 2007-01-26 | 2008-04-02 | 刘震东 | Stinking-proof, vermins-proof and water return preventing floor drain |
| CN202248229U (en) * | 2011-07-16 | 2012-05-30 | 党庆风 | Bottom filling-preventing and anti-odor floor drain for sewer |
| CN202628462U (en) * | 2012-06-11 | 2012-12-26 | 柳州展维热工科技有限公司 | Gas-water separator with crude separation and fine separation functions |
| TWM446198U (en) * | 2012-01-31 | 2013-02-01 | Bang-Cai Zeng | Deodorant, anti-cockroach, anti sewage-flooding floor water drain |
| CN203549013U (en) * | 2013-11-26 | 2014-04-16 | 苏州大学 | Backflow-preventing one-way valve |
| CN207392379U (en) * | 2017-07-16 | 2018-05-22 | 张新生 | Hanging pocket water return preventing floor drain |
-
2018
- 2018-08-24 CN CN201810975300.XA patent/CN109538795A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1457580A (en) * | 1922-01-12 | 1923-06-05 | Kurtz Stanley | Sewer-trap valve |
| US1996398A (en) * | 1933-05-09 | 1935-04-02 | Barzyk Richard | Valve |
| US2524501A (en) * | 1946-08-29 | 1950-10-03 | Adam J Wilhelm | Floor drain valve |
| DE2157652A1 (en) * | 1971-11-20 | 1973-05-24 | Karl Meier | APPLICABLE FLOOR DRAIN IN A BRICK-IN HOUSING |
| JPH09292042A (en) * | 1996-02-29 | 1997-11-11 | Toyota Motor Corp | Manufacture of check valve |
| CN201043288Y (en) * | 2007-01-26 | 2008-04-02 | 刘震东 | Stinking-proof, vermins-proof and water return preventing floor drain |
| CN202248229U (en) * | 2011-07-16 | 2012-05-30 | 党庆风 | Bottom filling-preventing and anti-odor floor drain for sewer |
| TWM446198U (en) * | 2012-01-31 | 2013-02-01 | Bang-Cai Zeng | Deodorant, anti-cockroach, anti sewage-flooding floor water drain |
| CN202628462U (en) * | 2012-06-11 | 2012-12-26 | 柳州展维热工科技有限公司 | Gas-water separator with crude separation and fine separation functions |
| CN203549013U (en) * | 2013-11-26 | 2014-04-16 | 苏州大学 | Backflow-preventing one-way valve |
| CN207392379U (en) * | 2017-07-16 | 2018-05-22 | 张新生 | Hanging pocket water return preventing floor drain |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253825A (en) * | 2020-10-22 | 2021-01-22 | 华光阀门有限公司 | Exhaust valve capable of improving exhaust efficiency |
| CN112253825B (en) * | 2020-10-22 | 2022-05-17 | 华光阀门有限公司 | Exhaust valve capable of improving exhaust efficiency |
| CN113431953A (en) * | 2021-07-13 | 2021-09-24 | 安庆泰悦机械科技有限公司 | Rectifying vortex steepest curve check valve |
| CN113431953B (en) * | 2021-07-13 | 2023-10-13 | 安庆泰悦机械科技有限公司 | Rectifying vortex fastest curve check valve |
| EP4365451A1 (en) * | 2022-11-02 | 2024-05-08 | Danfoss A/S | Check valve and hydraulic gerotoror geroler machine |
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