CN203719485U - Thermal diode - Google Patents

Thermal diode Download PDF

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Publication number
CN203719485U
CN203719485U CN201320669371.XU CN201320669371U CN203719485U CN 203719485 U CN203719485 U CN 203719485U CN 201320669371 U CN201320669371 U CN 201320669371U CN 203719485 U CN203719485 U CN 203719485U
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CN
China
Prior art keywords
thermal diode
shell
heat
segment
working fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320669371.XU
Other languages
Chinese (zh)
Inventor
董华
王永春
单梅
武廷方
董典同
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao University of Technology
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Qingdao University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao University of Technology filed Critical Qingdao University of Technology
Priority to CN201320669371.XU priority Critical patent/CN203719485U/en
Application granted granted Critical
Publication of CN203719485U publication Critical patent/CN203719485U/en
Anticipated expiration legal-status Critical
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

Abstract

The utility model relates to a thermal diode which comprises a pipe shell and a working fluid closed in the pipe shell, wherein the pipe shell adopts a closed structure comprising two vertical pipe shells, a bottom evaporation section and a top condensation section, and insulated sections are arranged on the vertical pipe shells. The thermal diode has the technical effect that the gravity type thermal diode has the advantages of simple structure, controllable thermal flow, strong heat transfer capability and the like, and the heat transfer efficiency is increased by 60% in comparison with the prior art.

Description

Thermal diode
Technical field
The utility model belongs to heat exchange element field, relates to a kind of heat-exchange tube, is specifically related to a kind of thermal diode.
Background technology
Heat pipe is a kind of enhanced heat transfer component efficiently, and it takes full advantage of the Rapid Thermal hereditary property of heat-conduction principle and refrigeration filling, through heat pipe, the heat of thermal objects is delivered to rapidly outside thermal source, and its capacity of heat transmission exceedes the capacity of heat transmission of any known metal.
Thermal diode is as a kind of energy-efficient heat transfer element, and it has all obtained to a certain degree application in energy-saving field and chemical industry.So-called thermal diode, be exactly can only unidirectional heat transfer heat pipe.It only has good heat transfer capacity in a direction, can not conduct heat in the other direction.The method that realizes unidirectional heat transfer is called interrupter technique.Thermal diode is a kind of special heat pipe, and the high-efficiency heat conduction performance that it had both kept heat pipe, has realized again unidirectional heat transmission simultaneously, has reached the object of unidirectional high rate heat transport.
Gravity type thermal diode blocks to realize unidirectional heat transfer by means of gravity.The advantages such as gravity type thermal diode has simple in structure, and hot-fluid is controlled, and heat-transfer capability is large, have attracted lot of domestic and foreign experts and scholars to carry out correlative study to it.
In winter, northern indoor cold, often need to adopt the mode of heating installation and air-conditioning to heat, and these two kinds of modes all need to adopt the mode such as coal or electricity, are heat energy by Conversion of Energy, are kept at indoor.Coal and electricity are the non-renewable energy, and in energy-intensive today, urgent need will be developed multiple heat supply mode.
Underground heat is a kind of natural resources, and heat pipe is day by day general in the use of underground heat and Integration of building at present, but in prior art, lacks a kind of simple heat pipe structure efficiently.
Utility model content
In order to fully utilize geothermal energy resources, save the use of traditional air-conditioning or heating installation, the utility model provides a kind of thermal diode of unidirectional heat transfer.
The technical solution of the utility model is:
A kind of thermal diode, comprises shell and is closed in the working fluid in shell, shell forms enclosed construction by two vertical shells, bottom evaporator section and top condensation segment, on described vertical shell, has insulating segment.
Compared with prior art, for prevent thermal diode use time copper pipe as heat transfer medium, indoor heat is taken away, this programme has the inventive concept of thermal insulation simultaneously based on insulating materials, by the improvement to existing thermal diode structure, vertical section at heat pipe is provided with insulating segment, insulating segment can prevent that the heat radiation of copper pipe from taking away indoor heat, heat is remained on indoor.
Preferably, described enclosed construction is three-back-shaped structure.
Adopt such scheme, at subsurface temperature, during higher than air themperature, evaporator section contacts with ground, and temperature, higher than condensation segment, absorbs underground heat by working medium and vaporizes, and at condensation segment condensation heat, heat is brought to indoor from ground, makes indoor snugness.
In order to play better insulation, anticorrosion and resistance to ag(e)ing effect, preferably, described insulating segment material is the wherein a kind of of PVC, PP.
Preferably, described insulating segment adopts hot melting way to be connected with other shell parts.
Preferably, other described shell part materials are metal seamless tube, are the wherein one of copper, aluminium, carbon steel, stainless steel or steel alloy.
Based on such scheme, the utility model has also been made following improvement:
Reflux in order to be beneficial to condensation water, top condensation end has been designed to certain angle of inclination by this programme, and preferably, described top condensation segment and horizontal line angle are 2-15 °.
More preferably, described top condensation segment and horizontal line angle are 3 °.
When the soil moisture is during lower than air themperature, in order to keep air themperature, we do not wish to adopt heat pipe structure that underground heat is conducted to indoor, therefore, preferably, thermal diode structure also comprises stop valve, described stop valve, through insulating segment, stretches out outside shell.The soil moisture during lower than air themperature, is closed stop valve, and in thermal diode, working fluid does not flow, blocking-up ground and indoor heat exchange.
In order to make heat pipe play the effect of heat transfer, preferably, described working fluid boiling point≤40 DEG C.More preferably, described working fluid is ammonia.
Technique effect of the present utility model is: the advantages such as gravity type thermal diode has simple in structure, and hot-fluid is controlled, and heat-transfer capability is large, heat transfer efficiency improves 60% compared with prior art.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model is arranged on the structural representation in body of wall.
Wherein: 1 vertical shell, 2 bottom evaporator sections, 3 top condensation segments, 4 insulating segments, 5 stop valves, 6 top condensation segments and horizontal line angle, 7 bodies of wall.
Detailed description of the invention
Below in conjunction with brief description of the drawings detailed description of the invention of the present utility model:
As depicted in figs. 1 and 2, a kind of thermal diode, comprises shell and is closed in the working fluid in shell, shell forms three-back-shaped structure by two vertical shells 1, bottom evaporator section 2 and top condensation segments 3, on vertical shell 1, has insulating segment 4.
Insulating segment 4 materials are the wherein a kind of of PVC, PP.Insulating segment 4 adopts hot melting way to be connected with other shell parts.Other shell part materials are metal seamless tube, are the wherein one of copper, aluminium, carbon steel, stainless steel or steel alloy.
Top condensation segment 3 is 2-15 ° with horizontal line angle, and in accompanying drawing, top condensation segment and horizontal line angle are 3 °.
Thermal diode also comprises stop valve 5, and stop valve 5, through insulating segment 4, stretches out outside shell.
Working fluid boiling point≤40 DEG C, the working fluid in the present embodiment is ammonia.

Claims (10)

1. a thermal diode, comprises shell and is closed in the working fluid in shell, it is characterized in that: shell forms enclosed construction by two vertical shells, bottom evaporator section and top condensation segment having insulating segment on described vertical shell.
2. thermal diode as claimed in claim 1, is characterized in that: described enclosed construction is three-back-shaped structure.
3. thermal diode as claimed in claim 1, is characterized in that: described top condensation segment and horizontal line angle are 2-15 °.
4. thermal diode as claimed in claim 3, is characterized in that: described top condensation segment and horizontal line angle are 3 °.
5. the thermal diode as described in as arbitrary in claim 1-4, is characterized in that: described thermal diode also comprises stop valve, and described stop valve, through insulating segment, stretches out outside shell.
6. thermal diode as arbitrary in claim 1-4, is characterized in that: described working fluid boiling point≤40 DEG C.
7. thermal diode as claimed in claim 6, is characterized in that: described working fluid is ammonia.
8. thermal diode as claimed in claim 1, is characterized in that: described insulating segment material is the wherein a kind of of PVC, PP.
9. the thermal diode as described in claim 1 or 8, is characterized in that: described insulating segment adopts hot melting way to be connected with other shell parts.
10. thermal diode as claimed in claim 9, is characterized in that: other described shell part materials are metal seamless tube, is the wherein one of copper, aluminium, carbon steel, stainless steel or steel alloy.
CN201320669371.XU 2013-10-28 2013-10-28 Thermal diode Expired - Fee Related CN203719485U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320669371.XU CN203719485U (en) 2013-10-28 2013-10-28 Thermal diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320669371.XU CN203719485U (en) 2013-10-28 2013-10-28 Thermal diode

Publications (1)

Publication Number Publication Date
CN203719485U true CN203719485U (en) 2014-07-16

Family

ID=51158629

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320669371.XU Expired - Fee Related CN203719485U (en) 2013-10-28 2013-10-28 Thermal diode

Country Status (1)

Country Link
CN (1) CN203719485U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106705720A (en) * 2017-01-19 2017-05-24 中国科学院广州能源研究所 Loop type heat pipe exploitation middle-shallow layer hydrothermal type geothermal system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106705720A (en) * 2017-01-19 2017-05-24 中国科学院广州能源研究所 Loop type heat pipe exploitation middle-shallow layer hydrothermal type geothermal system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140716

Termination date: 20151028

EXPY Termination of patent right or utility model