CN208296363U - A kind of two phase flow refrigerating plant based on electrocaloric effect - Google Patents
A kind of two phase flow refrigerating plant based on electrocaloric effect Download PDFInfo
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- CN208296363U CN208296363U CN201820782717.XU CN201820782717U CN208296363U CN 208296363 U CN208296363 U CN 208296363U CN 201820782717 U CN201820782717 U CN 201820782717U CN 208296363 U CN208296363 U CN 208296363U
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
A kind of two phase flow refrigerating plant based on electrocaloric effect, it includes N number of refrigeration device with electrocaloric effect material, N+1 heat-transfer fluid pipeline, low heat-conducting fluid, high thermal conductivity fluid and power supply, the N+1 heat-transfer fluid pipelines replace laying with N number of refrigeration device, and two heat-transfer fluid pipelines on the outermost side respectively correspond radiating end and refrigeration end；The low heat-conducting fluid and the high thermal conductivity fluid are alternately filled in the heat-transfer fluid pipeline in equal volume, each refrigeration device includes multi-sectional refrigerating piece and the insulated heat object that is arranged between adjacent two sections of cooling pieces, each section of cooling piece is separately connected the power supply, power switch is connected on circuit between each section of cooling piece and the power supply, power switch corresponding to odd number section cooling piece and even number section cooling piece replaces on-off.The two phase flow refrigerating plant based on electrocaloric effect has the advantages that design science, structure are simple, continuously transmit heat, improve heat radiation power and temperature span.
Description
Technical field
The utility model relates to solid coolant fields, specifically, are related to a kind of two phase flow refrigeration based on electrocaloric effect
Device.
Background technique
It is concentrated mainly on the material for researching and developing high electrocaloric effect using the research that electrocaloric effect is freezed both at home and abroad at present,
Such as PbZrTiO3 film and BaTiO3 and other thin-film ceramics and polymer.With the development of economy, device is towards micro-
Typeization development, especially the Refrigeration Technique in electronic equipment is particularly important.Electronic chip can generate largely in the course of work
Heat, the aggregation of heat can cause the failure and damage of chip, have one in the damage of the current electronic device of studies have shown that according to investigations
Half or more is as caused by thermal failure, therefore the timely heat dissipation of electronic device is the necessary guarantee for guaranteeing its steady operation.With
The development of scientific and technological level, electronic device gradually Highgrade integration and micromation, in order to avoid electronic device damages, heat dissipation problem
Solution becomes the developing important link of microelectronic device.Traditional refrigeration modes can not realize the system to microdevice
It is cold, and solid coolant can satisfy the refrigeration demand of microdevice as novel refrigeration modes.Solid coolant mainly includes magnetic
Refrigeration heat, semiconductor refrigerating and electrocaloric effect refrigeration.Magnetic heat refrigeration haves the shortcomings that at high cost, operating temperature is low；Semiconductor system
Cold there are refrigerating efficiencies low, the big disadvantage of energy loss；Electrocaloric effect refrigeration has high cooling efficiency, freezes at low cost excellent
Point, and excessive mechanical composition component is not needed by the refrigerating plant of the material preparation with electrocaloric effect, structure is simple, can
Flexibly it is applied to tiny device；Starting is convenient, applied by electric field and remove can fast-refrigerating make partial cooling；Control compared with
Be it is simple, meet electronic device and integrated circuit miniaturization development trend.The above feature to utilize with electrocaloric effect
The electrocaloric effect refrigeration of material has significant advantage in terms of the adjusting of the temperature of microminiaturized electronic device and refrigeration.
It is existing that polarization can occur for dipole of the refrigeration device of the material with electrocaloric effect under the action of electric field in material
As being changed from disordered state to ordered state, the entropy of material internal reduces, and releases waste heat；After removing electric field, dipole goes to pole
Change, is restored to disordered state from ordered state, and by way of absorbing heat from external environment the entropy of material internal is increased, from
And make the reduction of exterior material temperature, realize the effect of refrigeration.Freeze currently based on the electrocaloric effect of the material with electrocaloric effect
Existing main problem be presently, there are electrocaloric effect refrigerating plant due to electric field application and removal time restriction, Wu Fashi
Now continuous heat transfer is unable to satisfy the requirement of the device refrigeration of practical application so heat radiation power and temperature span are lower.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, so that it is simple, even to provide a kind of design science, structure
The two phase flow refrigerating plant based on electrocaloric effect for resuming and passing heat, improve heat radiation power and temperature span.
To achieve the goals above, the technical scheme adopted by the utility model is a kind of two-phase based on electrocaloric effect
Flow refrigerating plant, it include N number of refrigeration device with electrocaloric effect material, N+1 heat-transfer fluid pipeline, low heat-conducting fluid,
High thermal conductivity fluid and power supply, the N+1 heat-transfer fluid pipelines replace laying, adjacent refrigerator with N number of refrigeration device
The surface of part and heat-transfer fluid pipeline fits, and two heat-transfer fluid pipelines on the outermost side respectively correspond radiating end and refrigeration
End；The low heat-conducting fluid and the high thermal conductivity fluid are alternately filled in equal volume in the heat-transfer fluid pipeline and according to rule
Determine frequency interval to advance, each refrigeration device includes multi-sectional refrigerating piece and the insulation that is arranged between adjacent two sections of cooling pieces
The filling length of thermal barrier, the low heat-conducting fluid and the high thermal conductivity fluid is approximate with the length of the cooling piece, with toilet
It states and alternately contacts each section of cooling piece in low heat-conducting fluid and the high thermal conductivity fluid traveling process, each section of cooling piece connects respectively
The power supply is connect, power switch, odd number section cooling piece and even number are connected on the circuit between each section of cooling piece and the power supply
Power switch corresponding to section cooling piece replaces on-off, the traveling frequency and institute of the low heat-conducting fluid and the high thermal conductivity fluid
The on-off frequency for stating power switch is corresponding, each cooling piece according to regulation extra show and subtract field sequential and controlled to realize and freeze.
It is described on base, the advanced positions of the low heat-conducting fluid and the high thermal conductivity fluid in the heat-transfer fluid pipeline
It is corresponding with the position of each cooling piece interval to be aligned.
It is described on base, in the first stage of refrigerating plant work, the power switch of even number section cooling piece is disconnected, is closed at
The power switch of odd number section cooling piece, the low heat-conducting fluid controlled in the heat-transfer fluid pipeline of upside flows through even number section cooling piece, high
Heat-conducting fluid flows through odd number section cooling piece, and the low heat-conducting fluid in the heat-transfer fluid pipeline of downside flows through odd number section cooling piece, and height is led
Hot fluid flows through even number section cooling piece；In the second stage of refrigerating plant work, it is closed the power switch of even number section cooling piece, together
When disconnect odd number section cooling piece power switch, control upside heat-transfer fluid pipeline in low heat-conducting fluid flow through odd number section refrigeration
Piece, high thermal conductivity fluid flow through even number section cooling piece, and the low heat-conducting fluid in the heat-transfer fluid pipeline of downside flows through even number section cooling piece,
High thermal conductivity fluid flows through odd number section cooling piece.
Described on base, it further includes a pulsed power mechanism, and the pulsed power mechanism is respectively to the heat-transfer fluid pipe
The low heat-conducting fluid and the high thermal conductivity fluid are filled in road, at equal intervals successively to control the low heat-conducting fluid and the height
Flowing of the heat-conducting fluid in the heat-transfer fluid pipeline.
Described on base, the pulsed power mechanism includes a kinetic pump and impulse controller, the outlet pair of the kinetic pump
The heat-transfer fluid pipeline is connect, the impulse controller control connects the motor of the kinetic pump.
The utility model has substantive features and progress compared with the prior art, specifically, each section of the utility model
Cooling piece passes through power switch respectively and connects the power supply, hands over odd number section cooling piece and even number section cooling piece according to regulation mode
For closure power switch or disconnecting power switch, while between the low heat-conducting fluid in Heat Transfer Control fluid circuit and high thermal conductivity fluid
Traveling, the low heat-conducting fluid and the traveling frequency of the high thermal conductivity fluid of having a rest and the on-off frequency of the power switch are corresponding,
Each section of cooling piece is alternately contacted in the low heat-conducting fluid and the high thermal conductivity fluid traveling process, is guaranteed under energized state
Cooling piece upside heat-transfer fluid pipeline in flow through high thermal conductivity fluid, and flow through low thermally conductive stream in its downside heat-transfer fluid pipeline
Body, then the cooling piece under energized state discharges heat to radiating end by high thermal conductivity fluid, with this corresponding, under off-position
Cooling piece upside heat-transfer fluid pipeline in flow through low heat-conducting fluid, and flow through high thermal conductivity stream in its downside heat-transfer fluid pipeline
Body, then the cooling piece under off-position absorbs heat from refrigeration end by high thermal conductivity fluid；In this way, in the material with electrocaloric effect
Under the action of material, which continuously can absorb heat from refrigeration end, while discharge heat to radiating end, guarantee that heat passes
That passs is continuous, improves heat radiation power and temperature span.
It has the advantages that design science, structure are simple, continuously transmit heat, improve heat radiation power and temperature span.
Detailed description of the invention
Fig. 1 is the unit module operation principle schematic diagram of the utility model.
Fig. 2 is the unit module superposition schematic diagram of the utility model.
Fig. 3 is the power supply control schematic diagram of each section of the unit module of the utility model cooling piece with electrocaloric effect.
In figure: 1. heat-transfer fluid pipelines；2. low heat-conducting fluid；3. high thermal conductivity fluid；4. even number section cooling piece；5. odd number section
Cooling piece；6. insulated heat object；7. power supply；8. power switch.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1-3, a kind of two phase flow refrigerating plant based on electrocaloric effect, it includes N number of with electrocaloric effect material
The refrigeration device of material, N+1 heat-transfer fluid pipeline 1, low heat-conducting fluid 2, high thermal conductivity fluid 3 and power supply 7, the N+1 heat transfers
Fluid circuit 1 replaces laying with N number of refrigeration device, and the surface of adjacent refrigeration device and heat-transfer fluid pipeline 1 fits,
Two heat-transfer fluid pipelines 1 on the outermost side respectively correspond radiating end and refrigeration end；The low heat-conducting fluid 2 and the height are led
Hot fluid 3 is alternately filled in the heat-transfer fluid pipeline 1 in equal volume and advances according to regulation frequency interval, each system
Cooler part includes multi-sectional refrigerating piece and the insulated heat object 6 that is arranged between adjacent two sections of cooling pieces, low 2 He of heat-conducting fluid
The filling length of the high thermal conductivity fluid 3 is approximate with the length of the cooling piece, so that the low heat-conducting fluid 2 and the height are led
Each section of cooling piece is alternately contacted in 3 traveling process of hot fluid, each section of cooling piece is separately connected the power supply 7, each section of refrigeration
Power switch 8 is connected on circuit between piece and the power supply 7, corresponding to odd number section cooling piece 5 and even number section cooling piece 4
Power switch replaces on-off, the on-off of the traveling frequency and the power switch of the low heat-conducting fluid and the high thermal conductivity fluid
Frequency is corresponding, each cooling piece according to regulation extra show and subtract field sequential and controlled to realize and freeze.
The advanced positions of the low heat-conducting fluid 2 and the high thermal conductivity fluid 3 in the heat-transfer fluid pipeline 1 and each system
The cold corresponding alignment of position interval.
In the first stage of refrigerating plant work, the power switch 8 of even number section cooling piece 4 is disconnected, odd number section is closed at
The power switch 8 of cooling piece 5, the low heat-conducting fluid 2 controlled in upside heat-transfer fluid pipeline 1 flow through even number section cooling piece 4, and height is led
Hot fluid 3 flows through odd number section cooling piece 5, and the low heat-conducting fluid 2 in downside heat-transfer fluid pipeline 1 flows through odd number section cooling piece 5, high
Heat-conducting fluid 3 flows through even number section cooling piece 4；It is opened in the power supply of the second stage of refrigerating plant work, closure even number section cooling piece 4
8 are closed, the power switch 8 of odd number section cooling piece 5 is simultaneously switched off, the low heat-conducting fluid 2 in control upside heat-transfer fluid pipeline 1 flows through
Odd number section cooling piece 5, high thermal conductivity fluid 3 flow through even number section cooling piece 4, and the low heat-conducting fluid 2 in downside heat-transfer fluid pipeline 1 flows
Through even number section cooling piece 4, high thermal conductivity fluid 3 flows through odd number section cooling piece 5.
It further includes a pulsed power mechanism, the pulsed power mechanism respectively into the heat-transfer fluid pipeline 1 successively
It is filled with the low heat-conducting fluid 2 and the high thermal conductivity fluid 3, at equal intervals to control the low heat-conducting fluid 2 and the high thermal conductivity
Flowing of the fluid 3 in the heat-transfer fluid pipeline 1.
The pulsed power mechanism includes a kinetic pump and impulse controller, and the heat transfer is docked in the outlet of the kinetic pump
Fluid circuit 1, the impulse controller control connect the motor of the kinetic pump.
Low heat-conducting fluid 2 is generally various inert gases, and thermal conductivity is bad, it is difficult to transmit heat, such as air, nitrogen,
Carbon dioxide etc.；High thermal conductivity fluid 3 is generally liquid, and good heat conduction effect is easy to transmit heat, such as water, conduction oil, nanometer stream
Body, magnetic nano-fluid etc..
One unit module of above-described only utility model device, the present apparatus can be superimposed according to refrigeration demand
Multiple unit modules, to reach ideal refrigeration effect.
When the superposition of two or three units, the electric field controls of each section of cooling piece of each unit are using alternately.
The working principle and process of the two phase flow refrigerating plant based on electrocaloric effect are the first stage, disconnect even number section
The power switch 8 of cooling piece 4 is closed at the power switch 8 of odd number section cooling piece 5, on the upside of control in heat-transfer fluid pipeline 1
Low heat-conducting fluid 2 flows through even number section cooling piece 4, and high thermal conductivity fluid 3 flows through odd number section cooling piece 5, in downside heat-transfer fluid pipeline 1
Low heat-conducting fluid 2 flow through odd number section cooling piece 5, high thermal conductivity fluid 3 flows through even number section cooling piece 4, then even number section cooling piece 4
Electric field strength reduces, the dipole depolarising of 4 material of even number section cooling piece, restores from ordered state to disordered state, even number section refrigeration
Piece 4 absorbs heat from refrigeration end by downside high thermal conductivity fluid 3, and material internal entropy is caused to increase, and realizes refrigeration, and the low of upside is led
Hot fluid 2 prevents even number section cooling piece 4 from absorbing heat from radiating end, while the electric field strength of odd number section cooling piece 5 gradually increases,
The dipole of 5 material of odd number section cooling piece polarizes, and changes from disordered state to ordered state, and material internal entropy reduces, odd number section
Cooling piece 5 discharges waste heat to radiating end by upside high thermal conductivity fluid 3, realizes heat dissipation, and the low heat-conducting fluid 2 of downside prevents
Odd number section cooling piece 5 discharges heat to refrigeration end；Second stage is closed the power switch 8 of even number section cooling piece 4, simultaneously switches off
The power switch 8 of odd number section cooling piece 5, the high thermal conductivity fluid 3 controlled in upside heat-transfer fluid pipeline 1 flow through even number section cooling piece
4, low heat-conducting fluid 2 flows through odd number section cooling piece 5, and the high thermal conductivity fluid 3 in downside heat-transfer fluid pipeline 1 flows through odd number section refrigeration
Piece 5, low heat-conducting fluid 2 flow through even number section cooling piece 4, then the electric field strength of even number section cooling piece 4 gradually increases, even number section refrigeration
The dipole of 4 material of piece polarizes, and material internal entropy reduces, and is converted to ordered state from disordered state, even number section cooling piece 4 passes through
Upside high thermal conductivity fluid 3 discharges waste heat to radiating end, realizes heat dissipation, and the low heat-conducting fluid 2 of downside prevents even number section from freezing
Piece 4 discharges heat to radiating end, while the electric field strength of odd number section cooling piece 5 reduces, the dipole of 5 material of odd number section cooling piece
Depolarising restores from ordered state to disordered state, and material internal entropy increases, odd number section cooling piece 5 by downside high thermal conductivity fluid 3 from
Radiating end absorbs heat, realizes refrigeration, and the low heat-conducting fluid 2 of upside prevents odd number section cooling piece 5 from absorbing heat from radiating end；Such as
This, the first stage to be worked by refrigerating plant and second stage alternate run can enable the refrigerating plant continuously from refrigeration
End absorbs heat, while discharging heat to radiating end, guarantees the continuous of heat transfer, improves heat radiation power and temperature span.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (4)
1. a kind of two phase flow refrigerating plant based on electrocaloric effect, it is characterised in that: it includes N number of with electrocaloric effect material
Refrigeration device, N+1 heat-transfer fluid pipeline, low heat-conducting fluid, high thermal conductivity fluid and power supply, the N+1 heat-transfer fluid pipelines
Replace laying with N number of refrigeration device, the surface of adjacent refrigeration device and heat-transfer fluid pipeline fits, and is located at outermost
Two heat-transfer fluid pipelines respectively correspond radiating end and refrigeration end；The low heat-conducting fluid and the high thermal conductivity fluid are isometric
It is alternately filled in the heat-transfer fluid pipeline and advances according to regulation frequency interval, each refrigeration device includes multistage
Cooling piece and the insulated heat object being arranged between adjacent two sections of cooling pieces, the low heat-conducting fluid and the high thermal conductivity fluid
It is approximate with the length of the cooling piece to fill length, to hand in the low heat-conducting fluid and the high thermal conductivity fluid traveling process
Each section of cooling piece of the contact replaced, each section of cooling piece are separately connected the power supply, the electricity between each section of cooling piece and the power supply
Road is connected with power switch, and power switch corresponding to odd number section cooling piece and even number section cooling piece replaces on-off, described low
The traveling frequency of heat-conducting fluid and the high thermal conductivity fluid is corresponding with the on-off frequency of the power switch, and each cooling piece is according to rule
Fixed extra show and subtracts field sequential and controlled to realize refrigeration.
2. the two phase flow refrigerating plant according to claim 1 based on electrocaloric effect, it is characterised in that: the low thermally conductive stream
The advanced positions of body and the high thermal conductivity fluid in the heat-transfer fluid pipeline are corresponding with the position of each cooling piece interval to be aligned.
3. the two phase flow refrigerating plant according to claim 2 based on electrocaloric effect, it is characterised in that: it further includes an arteries and veins
Impulsion force mechanisms, the pulsed power mechanism are successively filled with the low thermally conductive stream at equal intervals into the heat-transfer fluid pipeline respectively
Body and the high thermal conductivity fluid, to control the low heat-conducting fluid and the high thermal conductivity fluid in the heat-transfer fluid pipeline
Flowing.
4. the two phase flow refrigerating plant according to claim 3 based on electrocaloric effect, it is characterised in that: the pulsed power
Mechanism includes a kinetic pump and impulse controller, and the heat-transfer fluid pipeline, the pulse control are docked in the outlet of the kinetic pump
Device control processed connects the motor of the kinetic pump.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662806A (en) * | 2018-05-24 | 2018-10-16 | 郑州大学 | A kind of two phase flow refrigerating plant based on electrocaloric effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662806A (en) * | 2018-05-24 | 2018-10-16 | 郑州大学 | A kind of two phase flow refrigerating plant based on electrocaloric effect |
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