CN107218403A - Push-pull valve and its encapsulating method - Google Patents
Push-pull valve and its encapsulating method Download PDFInfo
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- CN107218403A CN107218403A CN201710513349.9A CN201710513349A CN107218403A CN 107218403 A CN107218403 A CN 107218403A CN 201710513349 A CN201710513349 A CN 201710513349A CN 107218403 A CN107218403 A CN 107218403A
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 151
- 229910000831 Steel Inorganic materials 0.000 claims description 43
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- 238000007906 compression Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000012535 impurity Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000013475 authorization Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 229910000851 Alloy steel Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 208000028804 PERCHING syndrome Diseases 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000007937 lozenge Substances 0.000 description 4
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- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 238000011084 recovery Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- -1 and non-refractory Substances 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000005553 drilling Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a kind of push-pull valve and the encapsulating method of push-pull valve, the push-pull valve includes valve body, and valve seat, plate accommodates the seal cavity of the plate after opening, drive mechanism；Also include two slideways parallel to each other, it is separately fixed on two madial walls of seal cavity, is connected with valve seat and is generally aligned in the same plane with valve seat；The slideway and valve seat and ground are at an acute angle；The plate is seated in the top of slideway or valve seat, for slideway or valve seat, and plate is located at the upstream that medium is flowed to.The characteristics of present invention has simple in construction, widely applicable, dependable performance, good seal, greatly reduces manufacturing cost and operating cost.
Description
Technical field
The present invention relates to sealing and valve, and in particular to a kind of push-pull valve and its encapsulating method.
Background technology
Many occasions such as cigarette machine gateway and some desulphurization systems and sulfur recovery system used in oil plant are used
Valve, according to country to environmental protection requirement：Leakage rate is that the VI levels of zero either Unite States Standard are sealed.For larger-size
Valve, it is part very difficult thing to reach this standard.During high temperature applicationss, it more difficult to realize.Such as：The inlet valve of high temperature cigarette machine,
The flue gas occasion spent for design temperature more than 700, diameter is up to 1850, smoke inlet pressure 0.25MPa, technological requirement zero leakage.
This butterfly valve of the Adiemus company manufacture of Germany, price is more than 50~600,000 dollars/platform, and size is bigger by even more than thousand
Ten thousand yuans.Of home make price is also up to 600~7,000,000 yuan/platform.Nonetheless, it is close using all existing after a period of time
Feng Buyan and the problem of leak.
The catalysis system of domestic oil plant, flue-gas temperature more than 600 is spent, in order to realize zero leakage, using the method for water sealed tank
Sealing is realized, using this sealing means, its drawback is as follows：1. investment is big, about 300~4,000,000 yuan.2. floor space is big, category
Additional floor, wastes land resource.3. polluting environment, the water of water seal is formed acid water after smoke pollution, if directly discharging,
Environment is polluted, if being discharged after processing, processing cost is high.4. operation and maintenance cost is high.Flue gas is hot, it is considered to antifreeze, and water is needed
Play circulation, in addition it is also necessary to which a whole set of control system, some cold districts need to take heater by service, and moisturizing is needed during operation.These set
Standby maintaining about needs 8~10% expense of investment every year, and equipment running cost needs hundreds of thousands member every year.5. reliability
Poorer than valve, the equipment and instrument species used in seal water system are more, add trouble point, therefore poor reliability.
For flue gas desulphurization system and sulphur recovery, in order to realize zero-emission, except the enterprise that has is with above-mentioned water sealed tank
Outside this encapsulating method, many enterprises add air blower positive draft using between the butterfly valve or two push-pull valves of double-decker
Zero leakage is realized in measure, and the size of the valve used in this occasion is often all than larger, due to manufacturing, transporting, installing, making
The deformation ratio that the reasons such as temperature and pressure medium during are caused is larger, and zero leakage to be accomplished is part very difficult thing,
Just because of the deformation that a variety of causes is caused is larger, plus the air quantity needed for air blower positive draft is very big, therefore it is very big to consume energy, even if such as
This, due on the product structure of each manufactory, is still not implemented good sealing.In addition, between two push-pull valves
Divulged information to form air curtain to realize sealing with air blower, this equivalent to two push-pull valves are complicated, cost is high, during operation, power consumption
Greatly.
Publication No. CN105066156A Chinese patent application, discloses a kind of sealing strip and the cigarette with the sealing strip
Road butterfly valve, it significantly reduced the energy consumption of fan operation and heating ventilation medium than former technology, for many users simultaneously
It is widely recognized as.It is disadvantageous in that：Still suffer from the no small energy consumption produced during fan operation and some occasions drum
It must be heated and (prevent icing from not opening) energy consumption produced again during blower ventilation to wind.
The push-pull valve that coal gas industry is used also has the problem of some are well-known.Such as Authorization Notice No. CN2896042
Chinese patent disclosed in damper be such structure.
The and for example gas baffle door and its sealing device described in Authorization Notice No. CN201526980U Chinese patent, with can
The seal pipe of inflatable realizes sealing, and it is disadvantageous in that sealing uses nonmetallic materials, and non-refractory, encapsulant is easy
Aging；And for example the sealing structure of the push-pull valve described in publication number CN104006176A Chinese patent application has same ask
Topic.
Existing push-pull valve, it is simple in construction, belong to a kind of wide variety of valve.The patent application declared is a lot, and this differs
One enumerates.The push-pull valve used vertical for plate, in two sides of plate equipped with guide rail or in push-pull valve built with making plate
Guide rail in embedded groove, the push-pull valve of this structure, because there is the guide rail being affixed with plate two sides of plate, slightly deformation or
Have debris, with regard to easy bite, and manufacture, install, transporting, the change of temperature in use all easily causes deformation.Used in many occasions
Push-pull valve, size is deformed unavoidable than larger.There is guide rail two sides of plate, this inherently a kind of waste, especially high temperature
Occasion, need to use high-alloy steel.In fact, deformation is inevitable, after such as plate is deformed by the pressure or other factorses of medium,
Both sides are close to the guide rail of plate and frictional force are produced to plate, during lifting plate, need bigger lifting force, or even two times of lifting
Power, this certainly will increase executing agency.If the guide rail of the side of plate two is not close to plate, the problem of bringing is；It is poorly sealed, on track
When there is impurity or dust stratification, it is impossible to sealing when ensureing to close.In reality, influenceed due to the presence of dust stratification or impurity sealedly
Example can be found everywhere, and be present in a variety of valves.
The especially big push-pull valve of size, during accuracy of manufacture error, transport and installing the deformation produced, use
Deformation that pressure medium and temperature influence are produced etc., often overall deformation is larger, it is extremely difficult to control, therefore zero leakage to be accomplished is part
Very difficult thing.Actually the size for the push-pull valve that many occasions are used is very big now, solves it and has leaked into when business
It is anxious.
It is refer in push-pull valve described in Authorization Notice No. CN204592362U Chinese patents in the circumference side of circular plate
Several swing arms are arranged upwards, are connected between adjacent swing arm by V-arrangement connector, and any swing arm connects drive mechanism to realize folder
Tightly.This structure is beneficial to improving sealing property.The problem of it is present be：Because metal is deformed in clamping process,
First swing arm being joined directly together with drive mechanism and V-arrangement connecting member deformation are maximum, successively decrease successively thereafter, so that clamping force
More and more weaker or even not clamping, if thinking, each clamping force is close, is difficult adjustment.In addition, only one drive mechanism is difficult driving
Numerous clamp systems, is thus still difficult to good sealing.This type of drive is then tied according to multiple drive mechanisms
Structure seems complicated in disorder.Multiple-blade baffle plate before the fans entrance at many enterprises scene, all employs this structure, handy
Seldom, it is unreliable.In addition, after deformation, clamping force is uneven, or even not clamping, it is difficult to realize good sealing
Damper hinge double leval jib sealing mechanism disclosed in Authorization Notice No. CN201100649 Chinese patent and
The patent of quadric chain hermatic door disclosed in Authorization Notice No. CN202165597U is than existing push-pull valve space-consuming
It is few, simple in construction, good sealing effect.But exist following not enough：
1. the accuracy of manufacture and manufacture, transport, installing, using caused deformation, it is allowed to realize zero leakage difficulty, size is big
When, it is impossible to the deformation avoided, it is allowed to realize that zero leakage is more difficult.
2. the required precision of pair double leval jib is strict.The length of other double leval jib differs, and the difference of heat distortion amount easily makes valve plate
Relative displacement is produced between valve seat, thus, gap is also easy to produce, influences sealing effectiveness.
3. the quadric chain inside flue has several friction pairs, when the medium in flue contains dust, Yi Ka
Firmly, not dismantled due to inside flue, it is impossible to lubricate, after blocking to repair, due to inside flue, after going wrong
Lower rear maintenance need to be hung from high-altitude, maintenance cost is high, and maintenance cycle is long.In addition stopping production is easily caused, loss is brought.
4. during for high temperature applicationss, quadric chain need to be allowed to cost height, additionally there are using expensive high-alloy steel
The problem of high-temerature creep.
5. sealing is influenceed when having dust stratification or impurity on valve seat.
6. it is the same with large-diameter butterfly valve, when pressure height or big size, it is difficult to open.
The butterfly valve commonly used now, it is difficult to accomplish zero leakage, when bore is big or temperature in use is high simultaneously, is just more difficult to accomplish
Zero leakage.
Baffle plate (butterfly valve) on desulfurizer, if poorly sealed, does not reach environmental requirement；In addition, heat smoke can pour in down a chimney,
After flue gas pours in down a chimney, one is corrosion blower fan, and two be that people cannot be introduced into construction in flue.
View of the foregoing, it will be seen that the sealing of many valves is current problem, the especially big push-pull valve of size, due to the accuracy of manufacture
The problem of, the deformation that transport, installation are caused, the deformation that medium temperature and pressure are caused during use, these factors affects
Sealing, therefore zero leakage to be accomplished is difficult to realize.In addition, on valve seat dust stratification or have impurity and influence sealing and medium in
The problem of particle is also intended to solve to the erosive wear of sealing surface.
The content of the invention
In view of the above mentioned problem present in prior art, it is contemplated that a kind of push-pull valve is disclosed, to solve existing plate
The problems such as having impurity, coking, fouling, influence switch on valve bite and double push-pull valve cost height and valve seat or seal, simultaneously
The problem of solving existing some species of valve seal effect difference or sealing can not be ensured and the difficult sealing of some high temperature applicationss
Topic.
What the technical solution of the present invention was realized in：
A kind of push-pull valve, including：Valve body, valve seat, plate accommodates the seal cavity of the plate after opening, drive mechanism；
Also include two slideways parallel to each other, it is separately fixed on two madial walls of seal cavity, with valve seat phase
It is generally aligned in the same plane even and with valve seat；
The slideway and valve seat and ground are at an acute angle；
The plate is seated in the top of slideway or valve seat, for slideway or valve seat, and plate is located at what medium was flowed to
Upstream.
This push-pull valve that certain angle is carried with ground, first to compress valve seat realizes initial sealing by the component of deadweight,
And increase thrust when sealing by the component conducted oneself with dignity, during work, by the tighter of pressure medium pressure, realize better seal.Together
When, due to there is thrust of the plate to valve seat all the time, when plate moves up and down, the product on valve seat and slideway can be wiped off
Ash or debris, are conducive to realizing good sealing when closing.And the structure also saves the slideway of side, it is thus also avoided that two
There is the bite easily produced during slideway side.
For ensure sealing, plate bottom end surface not with valve body contact, that is,：Plate bottom end surface not with body base
Surface is contacted.
Further, the wedge shaped face in the lower end of the plate, slideway or valve seat are close in wedge-shaped tip.
Further, the neighboring of the sealing surface of seat is in contact with the neighboring of plate, and the inner rim of valve seat is with inserting
There is distance between plate without contact.That is, in an angle between the sealing surface and plate of valve seat, when plate is seated on valve seat
When, the neighboring of plate is contacted with valve seat, and inner rim and the valve plate of valve seat have individual spacing, and the size of this spacing is that valve plate is being situated between
In the presence of matter pressure, deflection of the valve plate relative to the position of valve seat inner rim.After valve plate deformation, closely pasted with valve seat just
Close.
Further, the push-pull valve also includes flange, and it is consistent with the shape of valve body framework, is fixed on the valve body
Inwall, with valve seat respectively positioned at the both sides of plate and parallel with the valve seat；
The surrounding position of the correspondence plate sets through hole and executing agency on the flange, and the executing agency is to wear
Cross the through hole and compress the plate.In fact, the plate for the push-pull valve that this utilization flange and executing agency compress can also
Used perpendicular to ground.
Specifically, described executing agency is straight trip stroke cylinder.
Further, can be on described plate, provided with more than one layer groove in order to save cylinder, gas circuit, air path elements
Steel, each channel-section steel of the superiors is directly pushed down between two parties by the piston rod of corresponding cylinder, and its number of lower floor's channel-section steel is adjacent for its
Twice of upper strata channel-section steel number and divide the bottom surface of a side of upper strata channel-section steel corresponding to it to push down between two parties respectively, orlop
The bottom surface of two sides of channel-section steel is pressed on plate, and the corresponding plate frame of end face distance of same layer channel-section steel is of substantially equal.I.e.
Individual layer channel-section steel is fixed on plate, during multilayer channel-section steel, and after fixing each other, basecoat is fixed on plate.
This structure is tightened together equivalent to plate and rectangle valve seat by a circle fastener, undermost each channel-section steel phase
When in two fasteners, effectively improving sealed effect, and plate is allowed to be used perpendicular to ground.
Further, the sealing partial groove of a circle insertion is provided with the sealing surface of the valve seat, the correspondence institute on valve seat
State sealing semlsulcus groove location and be provided with sealing medium entrance that is vertical or being not orthogonal to groove axis.When the sealing medium on valve seat
When entrance is tiltedly opened along the partial groove is axial, it will contribute to blow down dust stratification in closing process simultaneously.
Further, the correspondence groove is opened on the valve seat and offers sealing medium outlet.
Further, the valve body and/or the inwall of seal cavity post insulating lining, or the valve seat sealing surface
On stud with a circle sealing strip.Have after lining, the material outside lining can use ordinary steel or relatively low steel grade.
The present invention discloses a kind of encapsulating method of push-pull valve, including：
Two slideways parallel to each other of push-pull valve are separately fixed on two madial walls of the seal cavity of push-pull valve, with
Valve seat is connected and is generally aligned in the same plane with valve seat；
The slideway and valve seat and ground are at an acute angle；The component conducted oneself with dignity by plate compresses valve seat and realizes the first of push-pull valve
Begin to seal and use the sealed thrust of increase；
The plate is seated in the top of slideway or valve seat, for slideway or valve seat, and plate is located at what medium was flowed to
Upstream, thereby to wipe the dust stratification or debris on slideway and sealing surface of seat off.
Further, in plate dropping process, the tip for being close to slideway or the lozenges of valve seat lower end using plate is scraped
The dust stratification or debris gone on slideway or sealing surface of seat.
Or it is further, the neighboring of the sealing surface of seat is in contact with the neighboring of plate, the inner rim of valve seat
There is distance between plate without contacting with a spacing L, in the presence of pressure medium, plate middle part, which is produced, points to valve
The deflection in seat direction so that plate is gradually increased to overall realization sealing of fitting with the area that is brought into close contact of sealing surface of seat.
Or it is further, the flange consistent with valve body frame shape is fixed in valve interior wall, it is parallel with valve seat and divides
Not Wei Yu plate both sides, the surrounding position of the correspondence plate sets executing agency, such as straight trip stroke cylinder, institute on the flange
State straight trip stroke cylinder and compress the plate through the through hole of opposite position on flange；Or also cooperation is located at the one of plate surrounding
The compression positioning of layer or two layers channel-section steel, i.e., described cylinder piston rod is pressed on channel-section steel to by plate surrounding and valve seat pressure between two parties
Tightly, with the end face distance of layer channel-section steel, its corresponding plate frame is of substantially equal.
Further, the sealing that a circle insertion is opened up on the sealing surface of valve seat accommodates sealing medium, same phase with partial groove
Sealing medium entrance that is vertical or being not orthogonal to the partial groove axis should be set；
Or on the sealing surface of plate be correspondingly arranged corresponding sealing partial groove to expand sealing medium receiving simultaneously
Space；
The pipe introduced using outside is injected more than valve by the sealing medium entrance into sealing medium receiving space
The compressed gas or liquid of interior pressure medium realizes sealing.
For safety, the compressed gas can use nitrogen.Realized using liquid during sealing, the bottom of valve body need to be provided with
Discharge outlet, drain valve is connected in this discharge outlet.
The pressure of sealing gas or liquid should be larger than the pressure of sealed medium, and the pressure differential of the two should pass through flow
And/or flow simulation and experiment are drawn, as shown in Figure 9.
The leakage rate citing of above-mentioned encapsulating method and structural shape is calculated as follows：
Leakage rate
In above formula
Q：Leakage rate
b：The seal length of valve seat
L：The sealed width of valve seat
u：Dynamic viscosity at 20 DEG C
h：Gap between valve plate and valve seat
ΔP：Front and rear pressure differential after valve plate closing
If：Gap h=between the sealed width L=100 valve plates and valve seat of the seal length b=1000 valve seats of valve seat
0.2
For air Δ P=4kpa, this is pressure difference of the sealing gas to air to medium.
Calculate and understand：Q=104m3/h
If considering the leakage rate of valve seat groove both sides simultaneously, because the pressure of sealing medium and the pressure differential deltap by sealing side
P is small, and this value about should be above-mentioned Q values more than one times.
If making sealing medium of water, the dynamic viscosity of air and water is respectively 1.8X10-5PaS and 1.01X10-3PaS, is used
The conversion of amount is as follows：
QWater=(uAir/uWater)XQAir=0.018QAir
Such as：Use air 20m3/ h, then water consumption is 0.36m3/h。
From above formula, the gap h values between valve plate and valve seat are a very sensitive parameters, reduce this value
Meaning is very big.The surrounding of foregoing rectangular flange through hole is distributed several executing agencies for compressing valve plates and just seems and very must
Will.
The surrounding of rectangular flange through hole is distributed after the executing agency that several compress valve plate, can be made between valve plate and valve seat
Gap width it is very small, for the angle of mechanical experience and general knowledge：In this case, the gap h between valve plate and valve seat
The average value of value can accomplish h completelyIt is average≤ 0.05, calculated by this gap, the flow Q=1.625m of compressed gas3/ h, conversion
It is Q into normal volumeStandard=1.04X1.625=1.69N m3/ h, power consumption is less than 0.28KW, it can thus be appreciated that：Realize sealedly single
Power consumption in the time of position is very low.
In order to save, the flow of sealing medium should be controlled by controlling the pressure difference in sealing medium and valve.
It is continual that pressure is injected into the groove of plate and valve seat by entrance when sealing valve is closed
Gas or liquid more than pressure medium in valve have the problem of consuming energy all the time, in consideration of it, then can be by being arranged at valve seat
On sealing medium outlet, discharge the gas in the partial groove or sealing medium receiving space, and then enter by sealing medium
Mouth inject thereto it is non-volatile, do not solidify, viscosity is suitable or the higher paste medium of viscosity, such as lithium base grease, vaseline.
Realize sealing.Because paste medium has certain viscosity, the gap of valve seat and plate is minimum, and causes the medium in valve to be difficult to let out
Leakage.Thus, then sealing medium need not be continuously injected, so as to reach the effect of energy-conservation.
Compared with prior art, the beneficial effects of the invention are as follows obvious：
1. the gravity when present invention is tilted by plate is sealed in advance, and only there are valve seat or slideway in side (also referred to as
Guide rail), slideway is therefore saved on, and will not bite.Due to there is thrust of the plate to valve seat all the time, transported above and below plate
When dynamic, the dust stratification or debris on valve seat and slideway can be wiped off, be conducive to realizing good sealing when closing.
2. plate bottom lozenges structure of the present invention and its oblique mounting structure, pair for producing the component of plate gravity
The pressure of slideway or valve seat can be cleaner wipe dust stratification or debris off, compressed air stream or liquid flow can also remove product in addition
There is dust stratification on slideway or valve seat etc., also have contributes to when sealing medium entrance opposing seal is tiltedly opened with the axis of partial groove
Dust stratification or impurity are blown down in closing process, causes the structure of the present invention is avoided to influence sealing because of the presence of impurity.In addition,
In the closed state, due to the presence of compressed gas, it is less scaling at gap.
In addition, the wedge structure of plate overcomes the problem of influenceing to close after lower inside dust stratification.
3. it is equal to than double push-pull valves present invention and has lacked a deck valve, so that cost is significantly reduced, especially under high temperature applicationss
High-alloy steel used is sufficiently expensive, such as 06Cr25Ni20 steel, and price is 4~80,000 yuan/ton.Further, insulation serves as a contrast
In after structure, manufacturing cost can be significantly reduced again using relatively cheap steel grade outside lining, alleviate the negative of user
Load.
4. due to being entirely metal hard-sealing, it is allowed to can be used for high temperature applicationss, overcomes soft seal aging, is not used to height
The problem of being failed after thermal field conjunction, abrasion.
5. the surrounding of flange through hole is distributed after the executing agency that several compress valve plate, good seal performance is fully achieved
Zero leakage, solves to be difficult to the problem of zero leakage after the deformation of large scale push-pull valve.
6. overcome that double leval jib sealing mechanism movable member is more, can not lubricate, can not be repaired without removing, poor reliability
Or the problems such as poorly sealed, pressure is high or is difficult to open during big size.
7. for sealing means disclosed in this invention, the sealing means compared to traditional water sealed tank, small investment, operating cost
It is low, it is pollution-free, do not take up an area, reliability is high.
8. it was found from air consumption calculating, the present invention is few due to leakage rate, and power consumption is low, with double-deck gear widely used now
Plate or double push-pull valves are compared, and power consumption is incomparable, in the case of size identical, and power consumption of the invention reduces at least one
The individual order of magnitude；Meanwhile, power consumption of the present invention is substantially reduced, no matter the reduction of air consumption or power consumption, cause operating cost
Reduction, must and cause operating cost reduction.Hot gas also needs power consumption, and air consumption of the present invention is few, the power consumption pole of hot gas
It is low.
9. it was found from above-mentioned calculating, present invention reduces the requirement to device fabrication precision and integral rigidity, thus reduce
Manufacturing cost, also reduces to transport, installs, and uses the deformation requirements after being pressurized and being heated.
10. compared to traditional baffle plate and double leval jib sealing mechanism and double plate valve arrangements, structure of the present invention is simpler, manufacture
Easily, performance is more easy to ensure.
To sum up, plate valve arrangement and its encapsulating method of the invention, meet the market demand, solve prior art and deposited
The problem of, foreign exchange can be saved to substitute import, purchase is saved for user on the premise of performance is fully ensured and make
Use cost.
Brief description of the drawings
Fig. 1 is the structural representation of the push-pull valve of embodiment 1；
Fig. 2 is Fig. 1 F-F sectional views；
Fig. 3 is Fig. 1 D-D sectional views；
Fig. 4 and Fig. 2 I portions enlarged drawing；
Fig. 5 is the structural representation of the push-pull valve of embodiment 2；
Fig. 6 is the structural representation of the push-pull valve of embodiment 3；
Fig. 7 is Fig. 6 F-F sectional views；
Fig. 8 is the structural representation of two layers of channel-section steel in embodiment 3；
Fig. 9 is sealing valve gas leak-testing schematic diagram；In figure,
1. the partial groove on rectangular frame valve body, 2. rectangle valve seats, 3. plates, 4. sealing surface of seats, 4 ' plate sealing surfaces
On partial groove, 5. rectangular seal cavitys, 6,6 ' slideways, 7. drive mechanisms, 9,9 ', 9 " 10. gag lever post of channel-section steel, 11. Direct Travels
Cylinder, 12. rectangular flanges, the outlet of 31. lozenges A. sealing medium entrance B. sealing mediums
Embodiment
Embodiment 1
A kind of square push-pull valve, as shown in figure 1, the push-pull valve for runners such as horizontal pipe, flue, air channels, including：Square
Shape framework valve body 1, one be fixed on the inwall of valve body 1 circle rectangle valve seat 2, the plate 3, the rectangular frame valve body 1 that are attached on valve seat 2
Top is used in the rectangular seal cavity 5 of receiving plate after plate 3 is opened, seal cavity 5 and valve with what valve body 1 was fixed together
Seat 2 be connected and with two parallel slideways 6 and 6 ' that valve seat 2 is generally aligned in the same plane, two slideways 6 and 6 are separately fixed at sealing
On two madial walls of cavity 5, the drive mechanism 7 for being used to drive plate closure or openness of the top of seal cavity 5 is fixed on；Its
In, slideway 6 and 6 ' and valve seat 2 and ground are at an acute angle, and plate 3 is seated in the top of slideway 6 and 6 ' or valve seat 2, compared to the He of slideway 6
6 ' or valve seat 2 for, plate 3 be located at medium flow to upstream.This push-pull valve that certain angle is carried with ground, first by deadweight
Component realize initial sealing to compress valve seat 2, and increase thrust when sealing by the component conducted oneself with dignity, during work, by medium
Pressure pressure it is tighter, so as to realize better seal.Simultaneously as thrust of the plate 3 to valve seat 2 is there is all the time, when slotting
When plate 3 moves up and down, valve seat 2 and dust stratification or debris on slideway 6 and 6 ' can be wiped off, well close is realized when being conducive to closing
Envelope.In addition, for relatively conventional horizontal pipe push-pull valve, saving the slideway of opposite side.The board plug structure of perching knife shape, i.e.,
Plate lower end is lozenges 31, and as shown in Figure 2 and Figure 4, slideway or valve seat are close in wedge-shaped tip, can be slided up and down in plate
During, the dust stratification or debris on slideway or sealing surface of seat are scraped off, and thus further overcome inside or below push-pull valve
The problem of influenceing to close after dust stratification.
Embodiment 2
On the basis of embodiment 1, if thinking, push-pull valve realizes better seal, reduces the compressed gas or liquid of sealing
Flow, need to cause its plate 3 is deformed small, cost can be significantly increased in this；In order to reduce the manufacturing cost of plate 3, then it can use
Structure as shown in Figure 5, plate 3 is seated on rectangle valve seat 2, in a folder between the sealing surface and plate 3 of rectangle valve seat 2
Angle, that is,：When plate 3 is seated on valve seat 2, the neighboring of plate 3 is contacted with valve seat 2, and the inner rim of valve seat 2 is with inserting 3 plates
There is individual spacing L, when plate 3 is in the presence of pressure medium, deformation of the plate 3 relative to the position of valve seat inner rim just can compensate for
The spacing L, i.e., under pressure medium, after plate 3 is deformed, be brought into close contact with valve seat 2 just.After plate is pressurized, so
Structure can increase the contact area of sealing surface.
Embodiment 3
As shown in Figure 6, Figure 7, a kind of push-pull valve for runners such as pipeline, flue, air channels, it is on the basis of embodiment 1
On, in addition to a circle rectangular flange 12 on the inwall of rectangular frame valve body 1 is fixed on, it is located at the one of plate 3 relative to rectangle valve seat 2
For side, rectangular flange 12 is located at the opposite side of plate 3 and parallel with rectangle valve seat 2, the surrounding distribution of the through hole of rectangular flange 12
Several compress the executing agency of the plate 3, and described executing agency is straight trip stroke cylinder 11.There is inserting for track this side
Its plate 3 of plate valve can also be used perpendicular to ground.For embodiment 1, the present embodiment is in rectangular frame valve body 1
A circle rectangular flange 12 is fixed on wall, the surrounding of the through hole of rectangular flange 12 is distributed several executing agencies for compressing valve plate.
Further, in order to save executing agency, such as straight trip stroke cylinder, gas circuit, air path elements can be in described plates 3
On, the piston rod of correspondence cylinder, fixed channel-section steel 9 placed in the middle, bottom surface and the plate 3 of two sides of channel-section steel 9 are fixed together, channel-section steel
12 cross section is parallel to the frame of plate 3 corresponding to it；Equivalent to two fastener two fastening points of formation of i.e. each channel-section steel,
Plate 3 and rectangle valve seat are tightened together along the periphery of the plate 3, sealing effectiveness is so then not only further improved,
Even plate 3 can be allowed to be used perpendicular to ground.
Further, in order to more save cylinder, gas circuit, air path elements, as shown in figure 8, can on described plate,
The center that the lower section of channel-section steel 9 on correspondence cylinder piston rod, symmetrically fixes two channel-section steels 9 ' and 9 ", this two channel-section steels 9 ' and 9 ", divides
The bottom surface of two sides of the lower section of channel-section steel 9 that Wei Yu be on cylinder piston rod, this two channel-section steel 9 ' and 9 " each sideways, it is parallel
Two sides in the lower section of channel-section steel 9 on cylinder piston rod；The bottom of two sides of the channel-section steel 9 on cylinder piston rod
The end face of face and two channel-section steels pressure 9 ' and 9 " compression, this two channel-section steel 9 ' and 9 being fixed together with plate 3 " below away from
Frame of plate 3 corresponding from its is of substantially equal.This structure drives four harness fasteners equivalent to set of execution mechanism.
In order to prevent the dust stratification of rectangle valve seat 2 or have debris influence sealing, can also use following encapsulating method, i.e., relative to
For slideway 6,6 ' or rectangle valve seat 2, plate 3 is located at the downstream that medium is flowed to；Because sealing surface is located under rectangle valve seat 2
Trip, then be difficult dust stratification or depositing contaminants on sealing surface.
Because plate 3 is for rectangle valve seat 2, the downstream flowed to positioned at medium, then plate 3 that can be in valve body with
Between rectangular flange 12, two gag lever posts 10 perpendicular to ground are fixed close to plate 3, to prevent plate 3 from being blown off by medium, are made
Cheng Qiyu rectangles valve seat 2 is influenceed to use and sealing effectiveness away from too far away, and gag lever post 10 is fixed on the inwall of valve body upper and lower.
Further, the sealing property of push-pull valve can also be improved using following structure and method, including：
In order to wipe the dust stratification and debris on slideway 6,6 ' or the surface of valve seat 2 off and prevent the influence closing of lower inside dust stratification
The whereabouts of process centerboard 3, the lower end of the plate 3 wedge shaped face 31 in terms of both sides, or referred to as perching knife shape, such as Fig. 2, Fig. 4 and Fig. 7
Shown in, slideway 6,6 ' or valve seat 2 are close in the tip of perching knife.Lower end in perching knife shape plate 3 in dropping process, can be by valve
The dust stratification or impurity of lower section are extruded onto on one side.
In order to realize good sealing, valve seat 2 is towards studding with a circle sealing strip on the sealing surfaces of plate 3；
For the purposes of realizing the partial groove 4 that a circle insertion is provided with good sealing, the sealing surface of valve seat 2, in partial groove 4
It is vertical or be not orthogonal to valve seat drilling on the valve seat 2 at position, it is introduced from outside into pipe and is injected by A entrances into this groove 4
Sealing is realized more than the compressed gas or liquid of pressure medium in valve.
Further, it is corresponding on the compressed gas of sealing or the flow area of liquid, the sealing surface of plate 3 in order to increase
The partial groove 4 ' of a circle insertion is correspondingly provided with the partial groove 4 on valve seat 2.
In order to meet to demands such as the flows or fluidised form of compressed gas or liquid during sealing, the difference on the groove 4 of valve seat 2
Position perpendicular to or be not orthogonal to valve seat 2 bore several holes, be introduced from outside into pipe and be connected respectively with this some holes, from outside by
The entrance A of pipe is more than the compressed gas or liquid of pressure medium in valve to realize sealing to the interior injection of groove 4 and 4 '.
Realized using liquid during sealing, the bottom of valve body 1 need to be provided with discharge outlet, be connected in this discharge outlet hydrophobic
Valve.
For safety, described compressed gas is nitrogen to some occasions.Accumulated in preferably blow down on valve seat
Passage on dust stratification, valve seat is tiltedly opened along groove direction.This helps to blow down dust stratification in closing process.
In order to more be saved while sealing is ensured, the push-pull valve can use following sealing means：
In view of when the push-pull valve is closed, it is continual by entrance A to plate 3 and valve seat 2
Sealing has the problem of consuming energy all the time with gas or liquid of the pressure more than pressure medium in valve is injected in partial groove or groove,
In order to reduce energy consumption, in the case that pressure medium is not high in valve, a sealing medium outlet B can be opened on valve seat 2, is passed through
To sealing medium entrance A inject it is non-volatile, do not solidify, viscosity is suitable or the higher paste medium of viscosity, such as lithium base grease, all
Intellectual circle etc., because paste medium has certain viscosity, the gap of valve seat 2 and plate 3 is minimum, in this case, Jie in valve
Matter is difficult leakage.Thus, it is not necessary to continuously inject sealing medium, seal and save so as to realize.Into this cavity
When injecting paste medium, it is necessary to discharge the air in cavity, i.e., by the sealing medium for the opposite side for corresponding to sealing medium entrance
Export the discharge that B realizes the gas medium or liquid medium of former sealing.
To ensure sealing, the bottom end surface of plate 3 is not contacted with valve body 1, that is,：The bottom end surface of plate 3 not with the bottom of valve body 1
Inner surface contact.
For reduction high temperature resistant, the consumption of corrosion resistant high-alloy steel, the inwall of valve body 1 and/or rectangular seal cavity 5 is posted
Insulating lining, then the material outside lining can and steel grade that cost be relatively low relatively low using ordinary steel or performance.
In fact, except the rectangle push-pull valve in above-described embodiment, for other shapes of push-pull valve, above-mentioned sealing structure
And encapsulating method is equally applicable；Even double leval jib sealing mechanism, Yi Jidie are hinged in quadric chain hermatic door or damper
It is equally applicable in valve arrangement.Further, in an angle between the sealing surface and plate of valve seat, that is,：When valve plate is seated in valve seat
When upper, the neighboring of valve plate is contacted with valve seat, and inner rim and the valve plate of valve seat have individual spacing, and this spacing will be by valve plate in medium
In the presence of pressure, valve plate is compensated or offset relative to the deflection at the position of valve seat inner rim, i.e., valve plate is in pressure medium
After the lower deformation of effect, it can be brought into close contact just with valve seat.Due to having used compressed gas or liquid to realize sealing, it is related to double leval jib
Mechanism seals door or damper are hinged double leval jib sealing mechanism, can also utilize compressed gas or liquid in closing process
To purge the dust stratification or impurity on valve seat, kill two birds with one stone.
On drive mechanism, belong to professional knowledge, how on the books in the prior art and openly, this is not repeated.
The pressure of sealing gas or liquid should be larger than the pressure of sealed medium, and the pressure differential of the two should pass through flow
And/or flow simulation and experiment are drawn.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (15)
1. a kind of push-pull valve, including：Valve body, valve seat, plate accommodates the seal cavity of the plate after opening, drive mechanism, its spy
Levy and be：
Also include two slideways parallel to each other, it is separately fixed on two madial walls of seal cavity, be connected with valve seat and
It is generally aligned in the same plane with valve seat；
The slideway and valve seat and ground are at an acute angle；
The plate is seated in the top of slideway or valve seat, for slideway or valve seat, and plate is located at the upstream that medium is flowed to.
2. push-pull valve as claimed in claim 1, it is characterised in that：
The wedge shaped face in lower end of the plate, slideway or valve seat are close in wedge-shaped tip.
3. push-pull valve as claimed in claim 1, it is characterised in that：
The neighboring of the sealing surface of seat is in contact with the neighboring of plate, have between the inner rim and plate of valve seat distance and
Do not contact.
4. push-pull valve as claimed in claim 1, it is characterised in that：
Also include flange, it is consistent with the shape of valve body framework, is fixed on the inwall of the valve body, be located at respectively with valve seat and insert
Both sides of plate and parallel with the valve seat；
The surrounding position of the correspondence plate sets executing agency on the flange, and the executing agency passes through corresponding on flange
The through hole of position is to compress the plate.
5. push-pull valve as claimed in claim 4, it is characterised in that：Described executing agency is straight trip stroke cylinder.
6. push-pull valve as claimed in claim 5, it is characterised in that：
On described plate, provided with more than one layer channel-section steel, each channel-section steel of the superiors is occupied by the piston rod of corresponding cylinder
In directly push down, its number of lower floor's channel-section steel is twice of its adjacent upper strata channel-section steel number and is upper strata channel-section steel corresponding to it
The bottom surface of one side is pushed down between two parties, and the bottom surface of two sides of orlop channel-section steel is pressed on plate, the end face of same layer channel-section steel
It is of substantially equal apart from corresponding plate frame.
7. the push-pull valve as described in claim 1-6 is any, it is characterised in that：
The sealing partial groove of a circle insertion is provided with the sealing surface of the valve seat, the correspondence sealing partial groove on valve seat
Position is provided with sealing medium entrance that is vertical or being not orthogonal to groove axis.
8. push-pull valve as claimed in claim 7, it is characterised in that：
Sealing on the sealing surface of plate on the correspondence valve seat is provided with corresponding sealing partial groove with semlsulcus groove location.
9. push-pull valve as claimed in claim 7, it is characterised in that：
Correspondence sealing thereon offers sealing medium outlet with partial groove on the valve seat.
10. push-pull valve as claimed in claim 7, it is characterised in that：
The valve body and/or the inwall of seal cavity post that a circle is studded with insulating lining, or the sealing surface of the valve seat is close
Strip of paper used for sealing.
11. a kind of encapsulating method of push-pull valve, including：
Two slideways parallel to each other of push-pull valve are separately fixed on two madial walls of the seal cavity of push-pull valve, with valve seat
It is connected and is generally aligned in the same plane with valve seat；
The slideway and valve seat and ground are at an acute angle；The component conducted oneself with dignity by plate compresses valve seat and realizes the initial close of push-pull valve
Seal and use the sealed thrust of increase；
The plate is seated in the top of slideway or valve seat, for slideway or valve seat, and plate is located at the upstream that medium is flowed to,
Thereby to wipe the dust stratification or debris on slideway and sealing surface of seat off.
12. encapsulating method as claimed in claim 11, it is characterised in that：
The neighboring of the sealing surface of seat is in contact with the neighboring of plate, have between the inner rim and plate of valve seat distance and
A spacing L is not contacted with, and in the presence of pressure medium, plate middle part produces the deflection for pointing to valve seat direction, makes
Obtain plate and be gradually increased to overall realization sealing of fitting with the area that is brought into close contact of sealing surface of seat.
13. encapsulating method as claimed in claim 11, it is characterised in that：
The flange consistent with valve body frame shape is fixed in valve interior wall, it is parallel with valve seat and is located at the both sides of plate respectively,
The surrounding position of the correspondence plate sets straight trip stroke cylinder on the flange, and the straight trip stroke cylinder passes through corresponding on flange
The through hole of position compresses the plate；
Or also coordinating one layer positioned at plate surrounding or two layers of channel-section steel progress fastening positioning, i.e., described cylinder piston rod is pressed between two parties
To by plate surrounding and seat compression, with the end face distance of layer channel-section steel, its corresponding plate frame is of substantially equal on channel-section steel.
14. the encapsulating method as described in claim 11-13 is any, it is characterised in that：
The sealing of a circle insertion is opened up on the sealing surface of valve seat and accommodates sealing medium with partial groove, while relative set is vertically or not
Perpendicular to the sealing medium entrance of the partial groove axis；
Or on the sealing surface of plate be correspondingly arranged corresponding sealing partial groove to expand sealing medium receiving space simultaneously；
The pipe introduced using outside is injected by the sealing medium entrance into sealing medium receiving space to be situated between more than in valve
The compressed gas or liquid of matter pressure realizes sealing.
15. encapsulating method as claimed in claim 14, it is characterised in that：
Exported by the sealing medium being arranged on valve seat, gas or liquid in discharge sealing medium receiving space, Jin Ertong
Cross sealing medium inlet inject thereto it is non-volatile, do not solidify, the paste media implementation sealing that viscosity is suitable or viscosity is higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710513349.9A CN107218403A (en) | 2017-06-24 | 2017-06-24 | Push-pull valve and its encapsulating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513349.9A CN107218403A (en) | 2017-06-24 | 2017-06-24 | Push-pull valve and its encapsulating method |
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| CN107218403A true CN107218403A (en) | 2017-09-29 |
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| CN201710513349.9A Pending CN107218403A (en) | 2017-06-24 | 2017-06-24 | Push-pull valve and its encapsulating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027264A (en) * | 2018-08-04 | 2018-12-18 | 大连康维科技有限公司 | A kind of valve and its application |
| CN109210223A (en) * | 2018-11-20 | 2019-01-15 | 南通龙源电站阀门有限公司 | A kind of novel double-gate plate gate valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313121Y (en) * | 1997-10-24 | 1999-04-07 | 王爵崇 | Rail-guiding type cylindrical valve |
| CN201621307U (en) * | 2010-01-27 | 2010-11-03 | 上海凯科阀门制造有限公司 | Non-rising stem butterfly knife gate valve |
| US20100308252A1 (en) * | 2008-01-29 | 2010-12-09 | Peter John Woodward | gate valve |
| CN103410992A (en) * | 2013-07-26 | 2013-11-27 | 武汉策尔曼自动化设备有限公司 | Totally-closed spectacle type intercepting valve |
| CN104455518A (en) * | 2014-11-28 | 2015-03-25 | 苏州市吴中区大陆电子设备厂 | Gate valve sealing structure |
| CN205118374U (en) * | 2015-09-29 | 2016-03-30 | 洛阳芳华机械制造有限公司 | Coal pulverizer export push -pull valve suitable for higher environment of dust uses down |
| CN206845948U (en) * | 2017-06-24 | 2018-01-05 | 大连康维科技有限公司 | Push-pull valve |
-
2017
- 2017-06-24 CN CN201710513349.9A patent/CN107218403A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313121Y (en) * | 1997-10-24 | 1999-04-07 | 王爵崇 | Rail-guiding type cylindrical valve |
| US20100308252A1 (en) * | 2008-01-29 | 2010-12-09 | Peter John Woodward | gate valve |
| CN201621307U (en) * | 2010-01-27 | 2010-11-03 | 上海凯科阀门制造有限公司 | Non-rising stem butterfly knife gate valve |
| CN103410992A (en) * | 2013-07-26 | 2013-11-27 | 武汉策尔曼自动化设备有限公司 | Totally-closed spectacle type intercepting valve |
| CN104455518A (en) * | 2014-11-28 | 2015-03-25 | 苏州市吴中区大陆电子设备厂 | Gate valve sealing structure |
| CN205118374U (en) * | 2015-09-29 | 2016-03-30 | 洛阳芳华机械制造有限公司 | Coal pulverizer export push -pull valve suitable for higher environment of dust uses down |
| CN206845948U (en) * | 2017-06-24 | 2018-01-05 | 大连康维科技有限公司 | Push-pull valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027264A (en) * | 2018-08-04 | 2018-12-18 | 大连康维科技有限公司 | A kind of valve and its application |
| CN109210223A (en) * | 2018-11-20 | 2019-01-15 | 南通龙源电站阀门有限公司 | A kind of novel double-gate plate gate valve |
| CN109210223B (en) * | 2018-11-20 | 2023-09-05 | 南通龙源电站阀门有限公司 | Novel double-flashboard gate valve |
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