CN206973697U - A kind of phase-transition heat-storage collection cast condensing radiant panel - Google Patents
A kind of phase-transition heat-storage collection cast condensing radiant panel Download PDFInfo
- Publication number
- CN206973697U CN206973697U CN201720936331.5U CN201720936331U CN206973697U CN 206973697 U CN206973697 U CN 206973697U CN 201720936331 U CN201720936331 U CN 201720936331U CN 206973697 U CN206973697 U CN 206973697U
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- China
- Prior art keywords
- gas
- heating tube
- galvanized steel
- heat
- radiant panel
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- Expired - Fee Related
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- 238000005338 heat storage Methods 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 38
- 239000008397 galvanized steel Substances 0.000 claims abstract description 38
- 230000005855 radiation Effects 0.000 claims abstract description 16
- 239000003507 refrigerant Substances 0.000 claims abstract description 9
- 239000003973 paint Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 7
- 238000010257 thawing Methods 0.000 description 7
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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]
- Y02B30/12—Hot water central heating systems using heat pumps
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Other Air-Conditioning Systems (AREA)
Abstract
The utility model discloses a kind of phase-transition heat-storage collection cast condensing radiant panel, including heat supplying pipeline and collection cast radiant panel, collection cast radiant panel includes galvanized steel plain sheet housing, the both ends of galvanized steel plain sheet housing separate by galvanized steel plain sheet after formed with gas-liquid chamber, a plurality of heating tube is parallel between the gas-liquid chamber at both ends, refrigerant is filled with heating tube, phase-transition heat-storage layer is filled between the outer wall and galvanized steel plain sheet housing of heating tube, gas-liquid intracavitary is provided with multiple dividing plates, the dividing plate of the gas-liquid intracavitary of both sides is staggered in height, so as to which the gas-liquid intracavitary in both sides goes out multiple gas-liquid channels by separator lined, with the gas-liquid channel of the end to end both sides of each heating tube, several adjacent heating tubes are connected to form heating tube bundle according to the arrangement of dividing plate；The outer surface of galvanized steel plain sheet housing is coated with radiation paint layer.The utility model scene splicing installation, can reduce difficulty of construction with modularized production, small to building foundation facility and indoor arrangement change, reduce quantities, reduce cost.
Description
Technical field
A kind of heating plant for being hung on wall is the utility model is related to, specifically, is related to a kind of for winter Xia Shuan end
The new phase-transition heat-storage collection cast condensing radiation panel assembly of air source heat pump system winter indoor heating.
Background technology
With energy shortage and the getting worse of problem of environmental pollution, country proposes for the non-pooled heat supply region in the north
Original fossil energy disperses combustion facility is substituted using electric heating facility as supplement heating system, to reduce caused by dissipating coal combustion
Problem of environmental pollution.In existing electric heating equipment, electrically driven (operated) air source heat pump takes heat from air, by low grade heat energy
It is converted into high-grade heat energy to be heated, is most energy-conservation, most easy heating equipment.
Conventional air source heat pump refrigerating and heating use indoor set to be sent as heat exchange end, but winter using indoor set
Hot blast carries out the higher wind pushing temperature of heating requirement and easily produces blowing feeling, influences indoor thermal comfort.To improve comfortableness,
It is a kind of be suggested in the form of radiant heating to the air source heat pump hot-water heating system of indoor carry out heat supply and put into production should
With.But need to carry out secondary heat exchange with water during the system operation, cause certain thermal loss and the system is only used for winter
Heating, summer air-conditioning refrigeration problem can not be taken into account.At the same time, air source heat pump outdoor unit evaporator surface frosting can influence sky
Air supply heat pump system winter operation efficiency and indoor thermal comfort, also as difficult existing for above two heating system winter operation
Topic.
Utility model content
For above-mentioned prior art, systematic function is improved in order to further save the energy, the utility model proposes one kind
New and effective phase-transition heat-storage collection cast condensing radiant panel, can utilize existed building condition, freeze with reference to air source heat pump
Agent through type accumulation of heat radiation heating technology, phase-transition heat-storage collection cast condensing radiant panel is set up in wall side, will be arranged from compressor
The high temperature refrigerant gas gone out is passed directly into the heating tube in radiant panel, using the condensation heat release of refrigerant to indoor heating,
On the basis of retaining the advantages such as conventional radiation heating system saves and thermal comfort is strong, condensation temperature can be further reduced, is carried
The COP of high air source heat pump, realizes energy-saving and emission-reduction.
In order to solve the above-mentioned technical problem, the utility model proposes a kind of phase-transition heat-storage collection cast condensing radiant panel,
Including heat supplying pipeline and collection cast radiant panel, the heat supplying pipeline includes heat supply main and backheat main, the heat supply main with
Temperature and pressure transmitter is equipped with backheat main and controls to adjust valve；It is described collection cast radiant panel be connected to heat supply main and
Between the backheat main；The collection cast radiant panel includes galvanized steel plain sheet housing, the both ends of the galvanized steel plain sheet housing by
Galvanized steel plain sheet separate after formed with gas-liquid chamber, be parallel with a plurality of heating tube between the gas-liquid chamber at both ends, the heating tube with it is described
The inwall of galvanized steel plain sheet housing is tangent；Refrigerant, the outer wall of the heating tube and the galvanized steel are filled with the heating tube
Phase-transition heat-storage layer is filled with space between plate housing, the gas-liquid intracavitary is provided with multiple dividing plates, the gas-liquid intracavitary of both sides
Dividing plate is staggered in height, so as to which the gas-liquid intracavitary in both sides goes out multiple gas-liquid channels by separator lined, with each heating tube
The gas-liquid channel of end to end both sides, several adjacent heating tubes are connected to form heating tube bundle according to the arrangement of dividing plate；
The outer surface of the galvanized steel plain sheet housing is coated with radiation paint layer.
Further, in the utility model, the back side of the galvanized steel plain sheet housing with being provided with air blanketing between the walls.
Compared with prior art, the beneficial effects of the utility model are：
(1) refrigerant is directly entered the heating tube in radiant panel, no secondary heat exchange, reduces conveying energy consumption and energy loss,
Condensation temperature is reduced, improves system energy efficiency.
(2) heating tube with galvanized steel plain sheet is tangent contacts, enhanced heat exchange, while the presence of recuperation layer slows down and made by directly contact
Into hot line phenomenon, make radiant panel bulk temperature uniform, compared to traditional wall hanging radiant panel device, improve the thermal efficiency.Heat supply
Pipeline loop is shorter, reduces resistance, reduces energy consumption.
(3) when heat-storing material is filled between housing and heating tube, and being installed, soaking is set in radiant panel and between the walls
Air blanketing, so as to reduce the reverse heat output that gap is installed between wall and radiation trap plate, enhancing heat exchange, improve and supply
Thermal uniformity, the heat of heat-storing material storage plays peak load shifting effect in peak period, while is provided for the defrosting of winter outdoor unit
Heat, while indoor thermal comfort is ensured, solves air source heat pump winter operation defrosting problem.
(4) modularized production, scene splicing installation, reduces difficulty of construction, building foundation facility and indoor arrangement is changed
It is small, quantities is reduced, reduces cost.
Brief description of the drawings
Fig. 1 (a) is the structural representation of the utility model phase-transition heat-storage collection cast condensing radiant panel；
Fig. 1 (b) is C portions partial enlarged drawing in Fig. 1 (a)；
Fig. 1 (c) is D portions partial enlarged drawing in Fig. 1 (a)；
Fig. 2 (a) is the profile of A-A slice locations in Fig. 1 (a)；
Fig. 2 (b) is the profile of B-B slice locations in Fig. 1 (a)；
Fig. 3 is the utility model phase-transition heat-storage collection cast condensing radiant panel longitudinal sectional drawing；
Fig. 4 is the facade partial sectional view of the utility model phase-transition heat-storage collection cast condensing radiant panel.
In figure：1- heating tubes, 2- phase-transition heat-storage layers, 3- dividing plates, 4- gas-liquid channels, 5- galvanized steel plain sheets, 6- radiation paint layers,
7- air blanketings, 8- walls, 9- heat supply mains, 10- temperature and pressure transmitters, 11- adjusting control valves, 12- backheat mains
Embodiment
Technical solutions of the utility model are described in further detail with specific embodiment below in conjunction with the accompanying drawings, it is described
Only the utility model is explained for specific embodiment, not limiting the utility model.
As shown in Fig. 1 (a), the utility model proposes a kind of phase-transition heat-storage collection cast condensing radiant panel, including heat supply
Pipeline includes heat supply main 9 and backheat main 12, the heat supply main 9 and backheat with collection cast radiant panel, the heat supplying pipeline
Temperature and pressure transmitter 10 is equipped with main 12 and controls to adjust valve 11；The collection cast radiant panel is connected to heat supply main
Between 9 and the backheat main 12.
As shown in Fig. 1 (a), the collection cast radiant panel includes galvanized steel plain sheet housing 5, and the two of the galvanized steel plain sheet housing 5
End separate by galvanized steel plain sheet after formed with gas-liquid chamber, be parallel with a plurality of heating tube 1, the heating tube between the gas-liquid chamber at both ends
1 is tangent with the inwall of the galvanized steel plain sheet housing 5, and the galvanized steel plain sheet housing of outer layer is passed to after the absorption heat of heat-storing material layer 2
5, strengthen heat exchange；As shown in Fig. 1 (b), Fig. 2 (a) and Fig. 2 (b)；Refrigerant, the heating tube 1 are filled with the heating tube 1
Outer wall and the galvanized steel plain sheet housing 5 between space in be filled with phase-transition heat-storage layer 2, the gas-liquid intracavitary be provided with it is multiple every
Plate 3, the dividing plate 3 of the gas-liquid intracavitary of both sides are staggered in height, as shown in Fig. 1 (a) and Fig. 4, so as in the gas-liquid intracavitary of both sides
Multiple gas-liquid channels 4 are marked off by dividing plate 3, circular hole is opened up on the galvanized steel plain sheet of the heating tube side of gas-liquid channel 4, are heated
The circular hole of pipe 1 and correspondence position welds so that every heating tube 1 penetrates with gas-liquid chamber, and ensure that the overall gas of radiant panel
Close property, as shown in Fig. 1 (c) and Fig. 3, the gas-liquid channel 4 with each 1 end to end both sides of heating tube, according to the arrangement of dividing plate 3
Several adjacent series connection of heating tube 1 are formed into heating tube bundle, as shown in Figure 4；The outer surface coating of the galvanized steel plain sheet housing 5
There is radiation paint layer 6, strengthen indoor radiation heat transfer, radiant panel front is exchanged heat by radiation and convection mode to room air, installation
When, air blanketing 7 is provided between the back side of the galvanized steel plain sheet housing 5 and wall 8, is entered by pure radiation mode and wall surface 8
Row heat exchange；As shown in Fig. 2 (a) and Fig. 2 (b).
As shown in Figure 1 and Figure 4, the operation principle of the utility model radiant panel is, when being run under supplying thermal condition, air
High pressure-temperature gaseous coolant working medium prepared by source source pump enters in phase-transition heat-storage collection cast radiant panel by heat supply main 9,
The heating tube bundle formed by several heating tubes 1 of parallel connection is delivered to by gas-liquid channel 4 and carries out heat release, being condensed after heat release turns into liquid
Body, then import the return system outdoor unit of backheat main 12 by gas-liquid channel 4 and absorbed heat, heating cycle loop is formed, to room
Interior heat supply.
As shown in Fig. 2 (a) and Fig. 2 (b), phase-transition heat-storage collection cast radiant panel can be modularized production, each radiant panel
Metope surface is installed vertically on, radiant heat exchange is carried out to indoor suspension side surface of wall by 2 centimetres of air blanketings 7,
Toward the heat conduction amount of adjacent room when reducing direct adherent installation.Compared to the radiant panel of traditional wet installation, the utility model
The air gap formed using installation carries out two-way heat transfer.In order to ensure the radiant panel bearing capacity, from galvanized steel plain sheet conduct
Radiant panel shell, as shown in Fig. 2 (a), gas-liquid channel 4 is opened up in collection cast radiant panel left and right ends, between each gas-liquid channel 4
Divided by dividing plate 3, heating tube 1 is connected in parallel composition heating tube tube bank, is gone here and there between the tube bank of different heating pipe by gas-liquid channel 4
Connection connection, as shown in figure 4, in order to ensure the air-tightness between gas-liquid channel 4, dividing plate 3 welds with galvanized steel plain sheet.Such as Fig. 2 (b) institutes
Show, lay phase-transition heat-storage layer 2 outside each heating tube 1, phase-transition heat-storage layer 2 and the surface of heating tube 1, galvanized steel plain sheet housing 5 it is interior
Wall is in close contact.The phase-transition heat-storage layer 2 of filling passes through phase change memory user low the mount of using heat period after absorbing the heat of heating tube 1
Heat, heat release plays the effect of certain peak load shifting when heat load demand is big, under the operating mode that heats, by heating tube
The heat of 1 release, partly passes to galvanized steel plain sheet 5, in the form of convection current, heat radiation in supply chamber, another part is then by leading
Heat transfer carries out accumulation of heat to phase-transition heat-storage layer 2, while phase-transition heat-storage layer 2 slow down heating tube 1 and the tangent formation of galvanized steel plain sheet
Temperature caused by hot line is uneven, as shown in figure 3, heating tube 1 and galvanized steel plain sheet housing 5 are tangent, strengthen to heat transfer, accelerates
The lifting speed of indoor temperature, and phase-transition heat-storage layer 2 not only makes integral radiation plate temperature while indoor convection heat transfer' heat-transfer by convection is enhanced
Degree is uniform, can better meet human thermal comfort requirement.The heat that phase-transition heat-storage layer 2 absorbs in heating can supply heat pump
Unit in the winter time antiport defrost when heat, under defrosting operating condition, the heat transfer of savings avoids unit to heating tube 1
Directly from indoor heat absorption, so as to ensure that the stabilization of indoor temperature, alleviating defrosting indoor temperature reduces problem.Install and use this reality
With novel radiant plate, in heating make that other thermals source or defroster need not be added, solved while indoor thermal comfort is ensured
Defrosting problem.Because the phase-transition heat-storage collection cast condensing radiant panel in galvanized steel plain sheet housing outer surface is coated with radiative material,
Indoor radiation heat transfer can be strengthened.
As shown in Fig. 1 (b) and Fig. 1 (c) partial schematic diagram, in order to preferably discharge condensed refrigerant liquid, draw
The dividing plate 3 of point gas-liquid channel 4 and the bottom of last root heating tube 1 in heating tube tube bank are tangent, at the same finally with backheat main
The heating tube tube bank of 12 connections is also tangent with galvanized steel plain sheet bottom.Heating tube 1 passes through the circular hole opened up on galvanized steel plain sheet and gas-liquid
Passage 4 is connected.
Collection cast radiant panel in the utility model can realize modularized production, can be according to indoor load demand at the scene
Directly carry out splicing installation or transformed on the basis of existing facility, reduce construction and maintenance difficulty, be more easy to promotion and implementation.
A kind of phase-transition heat-storage collection cast condensing radiant panel of the utility model, runs the device in the winter time, by air-source heat
Pump carries out matching with radiant panel heating system and is connected, and refrigerant is passed through the heating tube in radiant panel, by way of radiation and convection
To indoor heating, condensation temperature is reduced, using clean energy resource, non-pollutant discharge, no secondary heat exchange, reduces system energy loss
With transporting energy consumption；Heat-storing material is added in the structure of radiant panel, temperature distribution evenness, enhancing heat transfer are improved, by accumulation of heat material
Material accumulation of heat provides heat for defrosting, maintains indoor temperature, guarantee thermal comfort while defrosting.The phase-transition heat-storage collection cast radiates
2 centimetres of air blanketing is left when plate is installed with wall, is reduced pair compared to wall-mounted radiant panel and traditional wet radiant panel
The reverse heat output in other rooms；Winter condition condensation temperature is reduced, improves air source heat pump Energy Efficiency Ratio；Make for not chummery
Intelligent optimal control is carried out to system operation with function, meets to reduce system energy consumption while indoor thermal comfort；Modularized production,
Type selecting and scene splicing installation are carried out according to indoor load demand, difficulty of construction is reduced, can be changed on the basis of existing facility
Make, reduce quantities, reduce cost.
Although the utility model is described above in conjunction with accompanying drawing, the utility model is not limited to above-mentioned
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, the ordinary skill of this area
Personnel are under enlightenment of the present utility model, in the case where not departing from the utility model aims, can also make many variations, this
Belong within protection of the present utility model.
Claims (2)
1. a kind of phase-transition heat-storage collection cast condensing radiant panel, including heat supplying pipeline and collection cast radiant panel, the heat supplying pipeline
Including heat supply main (9) and backheat main (12), temperature, pressure biography is equipped with the heat supply main (9) and backheat main (12)
Sensor (10) and control and regulation valve (11)；It is characterized in that：
The collection cast radiant panel is connected between heat supply main (9) and the backheat main (12)；
The collection cast radiant panel includes galvanized steel plain sheet housing (5), and the both ends of the galvanized steel plain sheet housing (5) are by galvanized steel plain sheet
Formed with gas-liquid chamber after separation, a plurality of heating tube (1), the heating tube (1) and the plating are parallel between the gas-liquid chamber at both ends
The inwall of zinc steel plate housing (5) is tangent；Be filled with refrigerant in the heating tube (1), the outer wall of the heating tube (1) with it is described
It is filled with phase-transition heat-storage layer (2) in space between galvanized steel plain sheet housing (5), the gas-liquid intracavitary is provided with multiple dividing plates (3), and two
The dividing plate (3) of the gas-liquid intracavitary of side is staggered in height, so as to which the gas-liquid intracavitary in both sides marks off multiple gas by dividing plate (3)
Liquid passage (4), the gas-liquid channel (4) with each heating tube (1) end to end both sides, will be some according to the arrangement of dividing plate (3)
Individual adjacent heating tube (1) series connection forms heating tube bundle；The outer surface of the galvanized steel plain sheet housing (5) is coated with radiation paint layer
(6)。
2. phase-transition heat-storage collection cast condensing radiant panel according to claim 1, it is characterised in that the galvanized steel plain sheet housing
(5) air blanketing (7) is provided between the back side and wall (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720936331.5U CN206973697U (en) | 2017-07-28 | 2017-07-28 | A kind of phase-transition heat-storage collection cast condensing radiant panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720936331.5U CN206973697U (en) | 2017-07-28 | 2017-07-28 | A kind of phase-transition heat-storage collection cast condensing radiant panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973697U true CN206973697U (en) | 2018-02-06 |
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ID=61398715
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720936331.5U Expired - Fee Related CN206973697U (en) | 2017-07-28 | 2017-07-28 | A kind of phase-transition heat-storage collection cast condensing radiant panel |
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| Country | Link |
|---|---|
| CN (1) | CN206973697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355846A (en) * | 2017-07-28 | 2017-11-17 | 天津大学 | A kind of phase-transition heat-storage collection cast condensing radiant panel |
-
2017
- 2017-07-28 CN CN201720936331.5U patent/CN206973697U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355846A (en) * | 2017-07-28 | 2017-11-17 | 天津大学 | A kind of phase-transition heat-storage collection cast condensing radiant panel |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180206 |