CN208107212U - A kind of zirconium tungstate negative heat expansion material intelligent valve - Google Patents
A kind of zirconium tungstate negative heat expansion material intelligent valve Download PDFInfo
- Publication number
- CN208107212U CN208107212U CN201820166330.1U CN201820166330U CN208107212U CN 208107212 U CN208107212 U CN 208107212U CN 201820166330 U CN201820166330 U CN 201820166330U CN 208107212 U CN208107212 U CN 208107212U
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- valve
- flow
- zirconium tungstate
- heat expansion
- expansion material
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Abstract
The utility model discloses a kind of zirconium tungstate negative heat expansion material intelligent valves, are made of the composite material that tungsten wire array is combined with graphene, and electric heating wire is equipped in the valve, and the valve is connected in control circuit；The valve is prepared using 3D printing technique.Flow sensor is installed in pipeline, it is connected with the flow sensor and is equipped with controller, when pipeline inner stream flow reaches lower threshold, the valve that variable-voltage power supply makes intellectual material is powered to heat valve mechanism driving material structure generation heat-induced shrinkage effect opening channel increase flow.The utility model uses nuclear structure of the novel material as valve, zirconium tungstate negative heat expansion material is combined with graphene ultra-lightweight material with high temperature resistant, high conductivity and good mechanical characteristic, it can achieve the effect that accurately to adjust and manage interior flow, therefore it can be applied in the pipeline flow control under various environment, there is good industrial use prospect.
Description
Technical field
The invention belongs to valve technology field, in particular to a kind of zirconium tungstate negative heat expansion material intelligent valve.
Background technique
According to existing document it is found that commonly there are three types of valves.It is driving source that solenoid valve, which is by electromagnetic force, is driven by coil
It is dynamic, it can only open or close, actuation time is short when switch.Solenoid valve generally circulates coefficient very little, and operating pressure difference very little.Electromagnetism
The degree of regulation of valve product is limited, and usually only two states of on and off, spool also can be only in two extreme positions for it, cannot
Enough continuously adjust.Secondly, the use of solenoid valve is influenced by the temperature-viscosity etc. of medium, and for the requirement of the cleannes of environment
It is higher, for that can not well adapt to containing granular medium, need to add filter screen.Shut-off valve belongs to forced seal formula
Valve because fluid resistance is big power required when opening and closing is larger, and it be not suitable for band particle, viscosity compared with
Greatly, easily the medium of coking, regulation performance are also poor.It adjusts valve regulation and is generally divided into straight-through single seated and straight-through double seat two
Kind, the latter have the characteristics that negotiability greatly, imbalance do small and stable operation, so usually especially suitable for big flow, height
The pressure drop occasion few with leakage.It can be seen that existing a few class valves using approach by different restrictive conditions, no
With the characteristic generally used, and the higher operating costs of part valve, it is only applicable to industrial production and for civilian big
Crowdization product etc. is simultaneously impracticable.
Summary of the invention
To solve the above problem present in the prior art and actual conditions, the present invention provides a kind of zirconium tungstate negative heat is swollen
Swollen material intelligent valve, is made of the composite material that tungsten wire array is combined with graphene, and electric heating wire is equipped in the valve,
The valve is connected in control circuit.
Preferably, the electric heating wire is embedded at tungsten wire array in the composite material that super light material graphene combines.
Preferably, the valve is prepared using 3D printing technique.
Preferably, flow sensor is installed in pipeline, is connected with the flow sensor and is equipped with controller, the control
Device is equipped with the size of flow bound threshold value, and the controller receives the flow signal that flow sensor transmits, with setting
Value compares, and when pipeline inner stream flow reaches lower threshold, controller issues control signal, and variable-voltage power supply is to intellectual material system
The valve of work is powered to heat valve mechanism driving material structure generation heat-induced shrinkage effect opening channel increase flow；
If flow sensor feedback information is the upper limit threshold of flow, controller issues control signal, and variable-voltage power supply reduces output
For power so that valve mechanism temperature declines, valve is voluntarily expanded due to the effect of negative expansion reduces flow.
The present invention uses nuclear structure of the novel material as valve, and zirconium tungstate negative heat expansion material and graphene are ultralight
Profile material, which is combined, can reach the accurate effect adjusted and manage interior flow with high temperature resistant, high conductivity and good mechanical characteristic
Fruit, therefore can be applied in the control of the pipeline flow under various environment, there is good industrial use prospect.
By the invention it is possible to autonomous, accurate monitoring of relatively simple, the economic realization for tube fluid uninterrupted
It adjusts, can be good at being suitable for the fluid-transporting tubing of varying environment, different medium, and do not need additional auxiliary and fill
The complicated technology of design sophisticated electronic mechanical devices is set while being also eliminated, the cost of production has been saved, has been pushed further into negative
Thermally expand the industrial applications of new material.
Detailed description of the invention
Fig. 1 is the working principle diagram of the zirconium tungstate negative heat expansion material intelligent valve of the embodiment of the present invention.
Fig. 2 is the work flow diagram of the zirconium tungstate negative heat expansion material intelligent valve of the embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is discussed in detail with reference to the accompanying drawing.
As shown in Figure 1, 2, present embodiment discloses a kind of novel negative expansion intellectual materials to drive valve, has cost
Low, using face is not influenced extensively by dielectric behavior and environment, accuracy is preferable and advantage easy to maintain, while can be with
Realize entirely autonomous security control.
It is the use principle and workflow of negative expansion intellectual material valve below：
Based on zirconium tungstate negative heat expansion material, combined using tungsten wire array with super light material graphene, so that valve mechanism
With certain electric conductivity, heating heating wire 2 is equipped in zirconium tungstate composite material intelligent valve 1, it is direct using 3D printing technique
Complete valve mechanism is prepared, the ball bearing made of required valve control is designed, flow sensor 3 is installed in channel interior and is set
The size of its flow bound threshold value is set to detect the uninterrupted inside pipeline, when pipeline inner stream flow reaches lower threshold
When, the valve that variable-voltage power supply makes intellectual material is powered, to heat valve mechanism to drive material structure
Heat-induced shrinkage effect opens channel and increases flow.If opposite flow sensor feedback information is the upper limit threshold of flow,
Variable-voltage power supply reduces output power so that valve mechanism temperature declines, and valve is voluntarily expanded due to the effect of negative expansion to be subtracted
Small flow.This valve controls the expansion and contraction of material by a set of feedback circuitry, meanwhile, it is good using tungsten wire array
Negative expansion effect and isotropic expansion characteristics accurately can make deflection match with power, therefore valve
Opening rate and shrinking percentage accurate adjusting can be realized by the output power size of power supply.
With the development of science and technology conventional material is not able to satisfy the equipment under high and low temperature environmental work, just there is an urgent need to logical for this
Special new material is crossed to replace conventional material.But some new materials possess the characteristic that thermal expansion coefficient is negative, i.e.,
Reduce as temperature increases volume, referred to as negative thermal expansion material.Tungsten wire array is to be found within the scope of very big temperature recently
(0.3K to 1050K) has biggish isotropism negative thermal expansion material.This engineering material, precision machinery, optic communication device,
Hard-disk drive read heads, printed circuit board, electronic device, Electronic Packaging, electronic ceramics even luminescent device and ion battery
Etc. it is with important application prospects.At present for the flow control in Pipeline transport flow liquid process still using tradition
Control core of the electromagnetic sensor as valve, this equipment manufacturing cost is higher, is not suitable for all situations and is easy by outer
Boundary's electromagnetic interference is to deposit security risk in use.Therefore, the present invention is based on the property of New Negative Thermal Expansion Material,
A kind of intelligent valve pair of controllable precise is designed using zirconium tungstate composite material for popular product such as air conditioning pipe system
The flow of pipeline is implemented one and is accurately monitored and controlled, and has to the external interference resistance and lightweight that improve valve products
Certain superiority can further push industrial applications of the negative thermal expansion material under thermal environment.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of zirconium tungstate negative heat expansion material intelligent valve, which is characterized in that answered using what tungsten wire array was combined with graphene
Condensation material is made, and electric heating wire is equipped in the valve, and the valve is connected in control circuit.
2. zirconium tungstate negative heat expansion material intelligent valve according to claim 1, which is characterized in that the electric heating wire is embedding
Set on tungsten wire array in the composite material that super light material graphene combines.
3. zirconium tungstate negative heat expansion material intelligent valve according to claim 1, which is characterized in that the valve uses 3D
Printing technique preparation.
4. zirconium tungstate negative heat expansion material intelligent valve according to claim 1, which is characterized in that install stream in pipeline
Quantity sensor, is connected with the flow sensor and is equipped with controller, and the controller is equipped with the size of flow bound threshold value, institute
It states controller and receives the flow signal that flow sensor transmits, compared with the value of setting, under pipeline inner stream flow reaches
When limiting threshold value, controller issues control signal, and the valve that variable-voltage power supply makes intellectual material is powered to heat valve
Structure drives material structure that heat-induced shrinkage effect occurs and opens channel increase flow；If flow sensor feedback information is flow
Upper limit threshold when, controller issue control signal, variable-voltage power supply reduce output power so that valve mechanism temperature decline,
Valve is voluntarily expanded due to the effect of negative expansion reduces flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820166330.1U CN208107212U (en) | 2018-01-31 | 2018-01-31 | A kind of zirconium tungstate negative heat expansion material intelligent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820166330.1U CN208107212U (en) | 2018-01-31 | 2018-01-31 | A kind of zirconium tungstate negative heat expansion material intelligent valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208107212U true CN208107212U (en) | 2018-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820166330.1U Expired - Fee Related CN208107212U (en) | 2018-01-31 | 2018-01-31 | A kind of zirconium tungstate negative heat expansion material intelligent valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN208107212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167469A (en) * | 2018-01-31 | 2018-06-15 | 兰州大学 | A kind of zirconium tungstate negative heat expansion material intelligent valve |
-
2018
- 2018-01-31 CN CN201820166330.1U patent/CN208107212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167469A (en) * | 2018-01-31 | 2018-06-15 | 兰州大学 | A kind of zirconium tungstate negative heat expansion material intelligent valve |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20220131 |
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| CF01 | Termination of patent right due to non-payment of annual fee |