CN208871117U - A kind of venturi valve - Google Patents
A kind of venturi valve Download PDFInfo
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- CN208871117U CN208871117U CN201820744865.2U CN201820744865U CN208871117U CN 208871117 U CN208871117 U CN 208871117U CN 201820744865 U CN201820744865 U CN 201820744865U CN 208871117 U CN208871117 U CN 208871117U
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Abstract
The utility model provides a kind of venturi valve, comprising: venturi valve valve body；Wherein, the venturi valve valve body is made of carbon fibre materials；It is set to the intracorporal valve vertebra of the venturi valve valve；Through the shaft of the venturi valve valve vertebra, wherein the valve vertebra can be slided along the shaft；It is connected with the venturi valve valve body and the shaft, drives the driving assembly of the shaft rotation；It is placed in the piston in the valve vertebra and being fixed on the shaft；It is placed in the valve vertebra and is sheathed on the elastic element that both ends are in contact with the piston and the valve vertebra respectively on the shaft；It is placed in the electromagnetic induction component in the valve vertebra and with shaft cooperation.Venturi valve body uses carbon fibre materials in the utility model, and corrosion resistance is preferable, and intensity is high, good toughness, venturi valve overall weight can be reduced, and the utility model can be with active balance wind pressure to the pressure of centrum and the elastic force of spring, and then eliminates the oscillation that centrum generates because wind pressure disturbs.
Description
Technical field
The utility model relates to venturi valve technical field, specially a kind of venturi valve.
Background technique
Venturi effect, also referred to as venturi effect.This phenomenon is with its finder, Italian physicist's venturi
(Giovanni Battista Venturi) name.The effect shows that restricted flow in the flow section by reducing, flows
There is the phenomenon that flow velocity increase in body, and flow is inversely proportional with flow section.And know the increase of flow velocity with stream by Bernoulli's theorem
The reduction of body pressure, i.e., common venturi phenomenon.Generally, this effect refers to and can produce near swiftly flowing fluid
Raw low pressure, to generate suction-operated.Venturi tube can be produced using this effect.
Venturi valve is the valve manufactured using the principle of Venturi effect.Swiftly flowing liquid can generate low pressure, thus
Have adsorption effect.Venturi control damper combines the gas flow controller of mechanical pressure unrelated adjuster and high speed, will
Gas flow optimized extends to highest level.By aerodynamic design, valve has mute working performance.Fast reaction it is automatic
Pressure equaliser provides the control of reliable vent cabinet dust and room pressure.Venturi valve has not to be become by air duct pressure
Change influence, Boiler pressure control range it is wide from 60m3/h to 10,000m3/h, be swift in response (less than 1 second), adjust accurate (± 5%)
The features such as.
The internal structure of venturi valve is to realize that the middle low speed in centrum module rectilinear direction is reciprocal using cylindrical slideway
Formula movement guarantees straight line under complicated severe gas operating condition to control and adjust the aperture that different wind pressure downstreams pass through
Accurate and reliable guide rail is usually all problem more difficult in engineering.
The valve body material of venturi valve generally uses aluminium alloy or stainless steel, copes with the corrosion resistance one of laboratory environment
As, and if requiring higher corrosion resistance, need to do valve body spray treatment, but in this way cost again it is high also not environmentally；
The body strength of aluminum alloy material is general, and aluminium alloy intensity itself is very high, but the body size of venturi valve is larger, and
Wall thickness is relatively thin, this makes the integral strength of aluminium alloy valve body bad, may be because of valve body caused by some collide with when installing at the scene
Deformation；The valve body integral strength of stainless steel material is fine, but weight is generally also very heavy, and because stainless steel is harder, so that
Machine-shaping is more difficult, and valve body cost of manufacture is higher.
The valve cone material of venturi valve generally uses aluminium alloy or stainless steel, copes with the corrosion resistance one of laboratory environment
As, and if requiring higher corrosion resistance, need to do valve cone spray treatment, but in this way cost again it is high also not environmentally；
The valve cone of the metal materials such as aluminium alloy or stainless steel is generally heavier, and when wind pressure is smaller, venturi valve can not make a response in time,
Keep good pressure independence；In addition because of the relationship of weight, when wind pressure quickly changes, valve cone reacts not in time, can drop
The control precision of low venturi valve.
In addition, venturi valve is widely used in supply and exhaust pipe, including the machinery of a centrum and spring cooperation
Component, for keeping air quantity set point in the variation of pipeline wind pressure, but wind pressure is accompanied by centainly while normal variation
Disturbance, also will cause the oscillation of centrum when disturbing larger, how while filtering out disturbance can change generation to wind pressure again
Quickly response is a problem.
Utility model content
In view of the foregoing deficiencies of prior art, it the purpose of this utility model is to provide a kind of venturi valve, is used for
Solve the problem of the valve body of venturi valve in the prior art and the poor disturbance that can not effectively adjust wind pressure of valve cone performance.
In order to achieve the above objects and other related objects, the utility model provides a kind of venturi valve, the venturi valve
It include: venturi valve valve body；Wherein, the venturi valve valve body is made of carbon fibre materials；It is set to the venturi valve valve
Intracorporal valve vertebra；Through the shaft of the venturi valve valve vertebra, wherein the valve vertebra can be slided along the shaft；With it is described
Venturi valve valve body is connected with the shaft, drives the driving assembly of the shaft rotation；It is placed in the valve vertebra and is fixed on
Piston on the shaft；Be placed in the valve vertebra and be sheathed on the shaft both ends respectively with the piston and the valve vertebra
The elastic element being in contact.
In an embodiment of the utility model, the valve cone is made of carbon fibre materials.
In an embodiment of the utility model, the driving component includes: the connection hinged with one end of the shaft
Bar；It is placed in the driver of the venturi valve valve interior surface or outer surface.
In an embodiment of the utility model, the driving component include: be set in the venturi valve valve body and
With the coaxially connected lead screw pair for driving the valve cone to slide along the shaft by rotation of the valve cone；It is connected respectively in institute
The both ends for stating lead screw in lead screw pair are used to drive the driving motor of the lead screw rotation.
In an embodiment of the utility model, the venturi valve further include: be placed in the valve vertebra and with the axis
The electromagnetic induction component of bar cooperation.
In an embodiment of the utility model, the electromagnetic induction component includes: the magnet being fixed on the piston；
The conductive straight tube of electromagnetic induction is generated when being fixed in the valve vertebra and sliding with the valve vertebra with the magnet.
In an embodiment of the utility model, the magnet is fixed on the piston tip.
In an embodiment of the utility model, the magnet is magnet or electromagnetic coil.
In an embodiment of the utility model, the piston, the magnet, the elastic element are placed in described conductive straight
In the lumen of pipe.
In an embodiment of the utility model, the both ends of the conduction straight tube are individually fixed in the both ends of the valve vertebra.
As described above, a kind of venturi valve of the utility model, has the advantages that
1, venturi valve body uses carbon fibre materials in the utility model, and corrosion resistance is preferable, can cope with laboratory
Severe ventilated environment compares metal, and carbon fibre materials intensity is high, good toughness, this improves valve integral strength, and is sending out
Original shape still can be kept when giving birth to some collide with, and carbon fibre materials quality is lighter, can reduce venturi valve and integrally weigh
Amount.
2, venturi valve valve cone uses carbon fibre materials in the utility model, and corrosion resistance is preferable, can cope with laboratory
Severe ventilated environment compares metal, and carbon fibre materials intensity is high, good toughness, so that valve can also be protected when wind pressure is smaller
Good pressure independence is held, there can also be control precision, and carbon fibre materials quality well when wind pressure quickly changes
It is relatively light, venturi valve overall weight can be reduced.
3, the utility model utilizes electromagnetism by the way that magnet and electrically conductive straight tube are added in the piston of venturi valve and centrum
Induction, active balance wind pressure eliminate what centrum generated by wind pressure disturbance to the pressure of centrum and the elastic force of spring
Oscillation.
4, the adjusting that the utility model changes centrum to wind pressure is more accurate, improves the pressure independence of venturi valve,
And on the basis of keeping venturi valve excellent pressure independence, influence of the wind pressure disturbance to centrum can be effectively suppressed.
5, the utility model structure simple and flexible, it is practical.
Detailed description of the invention
Fig. 1 is shown as the overall structure schematic illustration of the venturi valve of the utility model.
Fig. 2 is shown as a kind of principle schematic diagram of the middle driving assembly of the venturi valve of the utility model.
Fig. 3 is shown as a kind of principle schematic diagram of the middle electromagnetic induction element of the venturi valve of the utility model.
Fig. 4 is shown as the principle that magnet and electrically conductive straight tube generate electromagnetic induction in the venturi valve of the utility model and illustrates
Figure.
Component label instructions
100 venturi valves
110 venturi valve valve bodies
120 valve vertebras
130 shafts
140 pistons
150 elastic elements
161 magnets
162 conductive straight tubes
171 connecting rods
172 drivers
173 lead screw pair
174,175 driving motor
200 conductive coils
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
It please refers to Fig.1 to Fig.4.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, is not intended to limit the utility model
Enforceable qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or size
Adjustment, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall in the utility model
Revealed technology contents obtain in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", " left side ",
The term on " right side ", " centre " and " one " etc. is merely convenient to being illustrated for narration, rather than enforceable to limit the utility model
Range, relativeness are altered or modified, under the content of no substantial changes in technology, enforceable when being also considered as the utility model
Scope.
The purpose of the present embodiment is that a kind of venturi valve is provided, for solving the valve body of venturi valve in the prior art
The problem of energy is poor, can not effectively adjust the disturbance of wind pressure.A kind of principle of the venturi valve of the present embodiment described in detail below
And embodiment, so that those skilled in the art is not needed a kind of venturi valve that creative work is appreciated that the present embodiment.
Specifically, as shown in Figure 1, the present embodiment provides a kind of venturi valve 100, the venturi valve 100 includes: literary mound
In valve body 110；Wherein, the venturi valve valve body 110 is made of carbon fibre materials；It is set to the venturi valve valve body
Valve vertebra 120 in 110；Through the shaft 130 of the venturi valve valve vertebra 120, wherein the valve vertebra 120 can be along the axis
Bar 130 slides；It is connected with the venturi valve valve body 110 and the shaft 130, the driving group for driving the shaft 130 to rotate
Part；It is placed in the piston 140 in the valve vertebra 120 and being fixed on the shaft 130；It is placed in the valve vertebra 120 and is sheathed on
The elastic element 150 that both ends are in contact with the piston 140 and the valve vertebra 120 respectively on the shaft 130.
Venturi valve valve body described in the utility model 110 is made of carbon fibre materials, and corrosion resistance is preferable, can be coped with
The severe ventilated environment in laboratory compares metal, and carbon fibre materials intensity is high, good toughness, this improves valve integral strength,
And original shape still can be kept when some collide with occurs, and carbon fibre materials quality is lighter, can reduce venturi valve
100 overall weights.
In this present embodiment, the valve vertebra 120 of the venturi valve is made of carbon fibre materials, so that the valve vertebra 120 is anti-
Corrosivity is preferable, can cope with the severe ventilated environment in laboratory, compares metal, and carbon fibre materials intensity is high, and good toughness is described
The surface roughness of valve vertebra is preferably 0.2 μm~0.8 μm so that valve can also be kept when wind pressure is smaller good pressure without
Guan Xing quickly changes in wind pressure
In this present embodiment, wherein when by wind pressure, the valve vertebra 120 can be slided along the shaft 130；The axis
The both ends of bar 130 are installed with axle sleeve respectively, and the axle sleeve is preferably nylon sleeve.
In this present embodiment, include in the valve vertebra 120: the piston 140 being fixed on the shaft 130；It is placed in institute
It states in valve vertebra 120 and is sheathed on the bullet that both ends are in contact with the piston 140 and the valve vertebra 120 respectively on the shaft 130
Property element 150.Wherein, the elastic element 150 is preferably but not limited to spring.In the present embodiment, it is with the elastic element 150
It is illustrated for spring.
In this present embodiment, as described in Figure 1, the driving component may include: hinged with one end of the shaft 130
Connecting rod 171；It is placed in the driver 172 of 110 inner surface of venturi valve valve body or outer surface.Pass through the straight of driver 172
Line movement, drives the connecting rod 171, so that the shaft 130 be driven to move.
As shown in Fig. 2, the driving component can also include: to be set to the venturi valve valve body in an embodiment
It is in 110 and coaxially connected by rotating the lead screw pair for driving the valve cone 120 to slide along the shaft 130 with the valve cone 120
173；The both ends for being connected respectively the lead screw in the lead screw pair 173 are used to drive the driving motor of the lead screw rotation.
Wherein, the lead screw pair 173 is that can become moving along a straight line by rotary motion, the spiral being combined by lead screw and nut
Transmission parts.
Specifically, in this present embodiment, the lead screw pair 173 is ball screw assembly, or lead screw pair.
In this present embodiment, there is the lead screw pair 173 part of nut to match with the valve cone, the lead screw pair
173 parts with nut are located at the middle part of the venturi valve valve body 110 with the valve cone 120, so that entire venturi valve
100 center of gravity is placed in the middle, is easy to load and unload.
Specifically, in this present embodiment, the driving motor is two: driving motor 174 and driving motor 175.Driving
Motor 174 and driving motor 175 can be fixed by the bracket in the lead screw pair 173, wherein driving motor 174 and driving electricity
Machine 175 is preferably a micromotor.
In this present embodiment, the rotating cycle that driving motor 174 and driving motor 175 can be set makes driving motor 174
It is linear with the rotating cycle and 120 moving distance of valve cone of driving motor 175, to reach higher control essence easy to accomplish
The purpose of degree.
In this present embodiment, the venturi valve 100 further include: be placed in the valve vertebra 120 and match with the shaft 130
The electromagnetic induction component of conjunction.
Specifically, in this present embodiment, as shown in figure 3, the electromagnetic induction component includes: to be fixed on the piston 140
On magnet 161；Electromagnetic induction is generated with the magnet 161 when being fixed in the valve vertebra 120 and sliding with the valve vertebra 120
Conductive straight tube 162.
In this present embodiment, the magnet 161 is fixed on 140 top of piston.Such as the magnet 161 is annular,
It is set on the piston 140.In another example the magnet 161 is tabular, the top end surface shape of shape and the piston 1401
Shape matching, for example, circular plate magnet.
Wherein, the magnet 161 can glue cemented due to the piston 140, can also be fixed using other forms.
In this present embodiment, the magnet 161 is magnet or electromagnetic coil.
In this present embodiment, the piston 140, the magnet 161, the spring are placed in the pipe of the conductive straight tube 162
It is intracavitary.
In this present embodiment, the both ends of the conductive straight tube 162 are individually fixed in the both ends of the valve vertebra 120.It is described to lead
Electric straight tube 162 is material with good conductivity, electromagnetic induction can be generated with the magnet 161, the conduction straight tube 162 is weak magnetic
Magnetic attraction between 161 material of body, with the magnet 161 is smaller, and the conduction straight tube 162 is preferably copper pipe or aluminum pipe.
The piston 140 is fixed on the shaft 130, and the valve vertebra 120 can be along the shaft 130 under Action of Wind pressure
Sliding, 140 direction of Xiang Suoshu piston squeeze the spring.The conduction straight tube 162 is with the valve vertebra 120 along the shaft 130
Sliding, in 162 moving process of the conductive straight tube, the magnet 161 is relatively motionless, the conduction straight tube 162 and institute
It states magnet 161 and generates electromagnetic induction.
As shown in figure 4, valve vertebra 120 generates oscillation, and the conduction straight tube 162 is in the magnet when wind pressure disturbance is larger
Moved in 161 magnetic field, be equivalent to a magnet and moved in the conductive straight tube 162, the conductive straight tube 162 can be regarded as by
Multiple conductive coils 200 are constituted.
According to the law of electromagnetic induction: e (t)=- n (d Φ)/(dt)；The movement of magnet causes the variation of coil flux amount, produces
Raw induced current, the presence of electric current must be along with electromotive force, and according to above-mentioned formula, and induced electromotive force e (t) is proportional to coil turn
Number n, is proportional to change rate d Φ/dt of magnetic flux, the direction (negative sign in formula) of electromotive force is provided by Lenz's law, that is, felt
The magnetic field of electric current is answered to hinder the variation of former magnetic flux, so faradic magnetic field must hinder the movement of magnet, and magnetic
The movement velocity of iron is faster, and change rate d Φ/dt of coil flux amount is bigger, and induced electromotive force and electric current are also bigger, induced current
Magnetic field it is stronger, it is bigger to the resistance of magnet.
In the entire cycle of oscillation of valve vertebra 120, the speed at both ends minimum zero, the magnet 161 on piston 140 is to described
Conductive straight tube 162 non-resistance at this time, intermediate is fastest, and resistance is maximum at this time, can active balance wind pressure to the pressure of valve vertebra 120
The elastic force of power and spring, and then oscillation-damped.
When wind pressure normal variation, the conduction straight tube 162 generates relative motion with the magnet 161, has at this time certain
Resistance, this resistance can prevent 120 movement speed of valve vertebra too fast, and as valve vertebra 120 is closer to air quantity set point, and wind pressure is to valve
Gap between the pressure of vertebra 120 and the elastic force of spring is smaller, and 120 speed of valve vertebra is slower, and resistance is also smaller；When speed is zero
When, resistance is also zero, and the pressure of wind and the elastic force of spring are equal, and the adjusting that this changes valve vertebra 120 to wind pressure is more accurate.
In conclusion venturi valve body uses carbon fibre materials in the utility model, corrosion resistance is preferable, can cope with
The severe ventilated environment in laboratory compares metal, and carbon fibre materials intensity is high, good toughness, this improves valve integral strength,
And original shape still can be kept when some collide with occurs, and carbon fibre materials quality is lighter, can reduce venturi valve
Overall weight；Venturi valve valve cone uses carbon fibre materials in the utility model, and corrosion resistance is preferable, can cope with laboratory evil
Bad ventilated environment compares metal, and carbon fibre materials intensity is high, good toughness, so that valve can also be kept when wind pressure is smaller
Good pressure independence, can also have when wind pressure quickly changes well control precision, and carbon fibre materials quality compared with
Gently, venturi valve overall weight can be reduced；The utility model by the piston of venturi valve and centrum be added magnet with can
Conductive straight tube, using electromagnetic induction phenomenon, active balance wind pressure to the pressure of centrum and the elastic force of spring, and then eliminate centrum because
Wind pressure disturbs and the oscillation of generation；The adjusting that the utility model changes centrum to wind pressure is more accurate, improves venturi valve
Pressure independence, and on the basis of keeping venturi valve excellent pressure independence, wind pressure disturbance can be effectively suppressed to centrum
Influence；The utility model structure simple and flexible, it is practical.So the utility model effectively overcome it is in the prior art
Various shortcoming and have high industrial utilization value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (10)
1. a kind of venturi valve, which is characterized in that the venturi valve includes:
Venturi valve valve body；Wherein, the venturi valve valve body is made of carbon fibre materials；
It is set to the intracorporal valve vertebra of the venturi valve valve；
Through the shaft of the venturi valve valve vertebra, wherein the valve vertebra can be slided along the shaft；
It is connected with the venturi valve valve body and the shaft, drives the driving assembly of the shaft rotation；
It is placed in the piston in the valve vertebra and being fixed on the shaft；
It is placed in the valve vertebra and is sheathed on the elasticity that both ends are in contact with the piston and the valve vertebra respectively on the shaft
Element.
2. according to venturi valve described in claim 1, which is characterized in that the valve vertebra is made of carbon fibre materials.
3. according to venturi valve described in claim 1, which is characterized in that the driving component includes:
The hinged connecting rod with one end of the shaft；
It is placed in the driver of the venturi valve valve interior surface or outer surface.
4. according to venturi valve described in claim 1, which is characterized in that the driving component includes:
It is set in the venturi valve valve body and coaxially connected by rotating the drive valve vertebra along the axis with the valve vertebra
The lead screw pair of bar sliding；
The both ends for being connected respectively the lead screw in the lead screw pair are used to drive the driving motor of the lead screw rotation.
5. according to venturi valve described in claim 1, which is characterized in that the venturi valve further include: be placed in the valve vertebra
And the electromagnetic induction component with shaft cooperation.
6. according to the venturi valve described in claim 5, which is characterized in that the electromagnetic induction component includes:
The magnet being fixed on the piston；
The conductive straight tube of electromagnetic induction is generated when being fixed in the valve vertebra and sliding with the valve vertebra with the magnet.
7. according to venturi valve as claimed in claim 6, which is characterized in that the magnet is fixed on the piston tip.
8. venturi valve according to claim 6 or 7, which is characterized in that the magnet is magnet or electromagnetic coil.
9. venturi valve according to claim 6, which is characterized in that the piston, the magnet, the elastic element are set
In in the lumen of the conductive straight tube.
10. venturi valve according to claim 6 or 9, which is characterized in that the both ends of the conduction straight tube are individually fixed in
The both ends of the valve vertebra.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820744865.2U CN208871117U (en) | 2018-05-18 | 2018-05-18 | A kind of venturi valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820744865.2U CN208871117U (en) | 2018-05-18 | 2018-05-18 | A kind of venturi valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208871117U true CN208871117U (en) | 2019-05-17 |
Family
ID=66461717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820744865.2U Active CN208871117U (en) | 2018-05-18 | 2018-05-18 | A kind of venturi valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208871117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332365A (en) * | 2019-07-09 | 2019-10-15 | 上海智全控制设备有限公司 | A kind of venturi valve |
-
2018
- 2018-05-18 CN CN201820744865.2U patent/CN208871117U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332365A (en) * | 2019-07-09 | 2019-10-15 | 上海智全控制设备有限公司 | A kind of venturi valve |
| CN110332365B (en) * | 2019-07-09 | 2024-02-20 | 上海智全控制设备有限公司 | Venturi valve |
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