CN113739295A - Composite heat exchanger system based on heat supply and self-refrigeration - Google Patents

Composite heat exchanger system based on heat supply and self-refrigeration Download PDF

Info

Publication number
CN113739295A
CN113739295A CN202111048869.XA CN202111048869A CN113739295A CN 113739295 A CN113739295 A CN 113739295A CN 202111048869 A CN202111048869 A CN 202111048869A CN 113739295 A CN113739295 A CN 113739295A
Authority
CN
China
Prior art keywords
heat exchanger
cooling
heat exchange
heat
heating
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.)
Pending
Application number
CN202111048869.XA
Other languages
Chinese (zh)
Inventor
马瑞华
马东艳
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.)
Panzhihua University
Original Assignee
Panzhihua University
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 Panzhihua University filed Critical Panzhihua University
Priority to CN202111048869.XA priority Critical patent/CN113739295A/en
Publication of CN113739295A publication Critical patent/CN113739295A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089Systems using radiation from walls or panels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00Other domestic- or space-heating systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0003Exclusively-fluid systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention discloses a composite heat exchanger system, particularly discloses a composite heat exchanger system based on heat supply and self-refrigeration, and belongs to the technical field of design and manufacture of urban heating equipment. The composite heat exchanger system based on heat supply and self-refrigeration is simple in structure and capable of effectively heating or heat exchange and cooling according to needs. The composite heat exchanger system comprises a heat exchange assembly, the heat exchange assembly is arranged in an indoor space needing heat exchange, the composite heat exchanger system further comprises a radiation cooling unit and a connecting piece group, the heat exchange assembly is communicated with an external heating and cooling circulation total system through the connecting piece group, and two ends of the radiation cooling unit arranged in the outdoor space are respectively connected with two ends of the heat exchange assembly through the connecting piece group.

Description

Composite heat exchanger system based on heat supply and self-refrigeration
Technical Field
The invention relates to a composite heat exchanger system, in particular to a composite heat exchanger system based on heat supply and self-refrigeration, and belongs to the technical field of design and manufacture of urban heating equipment.
Background
The traditional household radiator can only be used for supplying heat in winter, and is in an idle state in other seasons, so that the utilization rate of the radiator is low. How to improve the utilization ratio of the radiator and achieve the purposes of effectively supplying heat in winter and effectively replacing indoor heat energy to the outdoor in hot summer to reduce the indoor temperature becomes a technical problem which needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the composite heat exchanger system based on heat supply and self-refrigeration is simple in structure and capable of effectively heating or heat exchange and cooling according to needs.
The technical scheme adopted for solving the technical problems is as follows: the composite heat exchanger system comprises a heat exchange assembly, wherein the heat exchange assembly is arranged in an indoor space needing heat exchange, the composite heat exchanger system further comprises a radiation cooling unit and a connecting piece group, the heat exchange assembly is communicated with an external heating and cooling circulation main system through the connecting piece group, and two ends of the radiation cooling unit arranged in the outdoor space are respectively connected with two ends of the heat exchange assembly through the connecting piece group.
Furthermore, the heat exchange assembly comprises at least one group of heat exchangers, each group of heat exchangers is connected in series to form an integral heat exchanger group through a connecting piece group, two ends of the heat exchanger group are communicated with an external heating and cooling circulation main system through the connecting piece group, and two ends of the radiation cooling unit are respectively connected with two ends of the heat exchanger group through the connecting piece group.
The preferred mode of above-mentioned scheme is, the connecting piece group include conveyer pipe and cut-off valve, the heat exchanger group passes through conveyer pipe and outside heating cooling circulation total system intercommunication, radiant cooling unit pass through the conveyer pipe with the heat exchanger group be connected, equally divide on two conveyer pipes that heat exchanger group and outside heating cooling circulation total system are connected and respectively arrange the cut-off valve, also equally divide on two conveyer pipes that radiant cooling unit and heat exchanger group are connected and respectively arrange the cut-off valve.
Furthermore, the radiation cooling unit comprises a shell, a circulating heat exchange water pipe and a radiation cooling and heat dissipation assembly, wherein the circulating heat exchange water pipe is arranged in the hollow cavity of the shell, and the radiation cooling and heat dissipation assembly is covered on the side surface of the shell with the opened installation cavity.
In a preferred mode of the above aspect, the housing is a closable housing made of a heat insulating material.
Furthermore, the circulating heat exchange water pipe is a heat exchange calandria arranged in the installation cavity, and two ends of the heat exchange calandria penetrating out of the shell are connected with the heat exchanger set through conveying pipes.
In a preferred mode of the above scheme, the radiation cooling heat dissipation assembly at least comprises a radiation cooling film, and the open side surface of the installation cavity is sealed by the radiation cooling film.
Further, the radiation cooling heat dissipation assembly further comprises a glass cover plate, and the glass cover plate is arranged on the installation cavity on the outer side of the radiation cooling film.
Further, the radiant cooling film is a selective reflective radiant film.
The invention has the beneficial effects that: the application provides a compound heat exchanger system to current heat exchange assembly is the basis, combines this heat exchange assembly to arrange the characteristics in the indoor space that need carry out the heat exchange again, sets up radiation cooling unit and connecting piece group through the increase, then makes heat exchange assembly pass through connecting piece group and outside heating cooling cycle total system intercommunication, arrange in outdoor space radiation cooling unit's both ends pass through connecting piece group respectively with heat exchange assembly's both ends are connected. Like this, because the technical scheme make full use of current heat exchange assemblies and the bright system of outside confession that this application provided, thereby can its structure of effectual simplification, reduction production manufacturing and running cost, simultaneously because the technical scheme that this application provided has increased the radiation cooling unit that can independent existence on current heating system's basis, and be connected this radiation cooling unit through connecting piece group and heat exchange assemblies's both ends, realize when needing to reduce indoor temperature through heat exchange assemblies with heat discharge outdoor under the radiation cooling unit cooperation, reach the purpose that reduces indoor temperature.
Drawings
FIG. 1 is a schematic diagram of a composite heat exchanger system based on heating and self-cooling according to the present invention;
fig. 2 is a cross-sectional view of a three-dimensional structure of a radiant cooling unit according to the present invention.
Labeled as: the device comprises a heat exchange assembly 1, a radiation cooling unit 2, a connecting piece group 3, a conveying pipe 4, a cut-off valve 5, a shell 6, a circulating heat exchange water pipe 7, a radiation cooling heat dissipation assembly 8, a radiation cooling film 9 and a glass cover plate 10.
Detailed Description
As shown in fig. 1 and 2, the composite heat exchanger system based on heating and self-cooling provided by the invention has a simple structure, and can effectively perform heating or heat exchange cooling according to needs. The composite heat exchanger system comprises a heat exchange assembly 1, the heat exchange assembly 1 is arranged in an indoor space needing heat exchange, the composite heat exchanger system further comprises a radiation cooling unit 2 and a connecting piece group 3, the heat exchange assembly 1 is communicated with an external heating and cooling circulation total system through the connecting piece group 3, and two ends of the radiation cooling unit 2 arranged in an outdoor space are respectively connected with two ends of the heat exchange assembly 1 through the connecting piece group 3. The application provides a compound heat exchanger system to current heat exchange assembly is the basis, combines this heat exchange assembly to arrange the characteristics in the indoor space that need carry out the heat exchange again, sets up radiation cooling unit and connecting piece group through the increase, then makes heat exchange assembly pass through connecting piece group and outside heating cooling cycle total system intercommunication, arrange in outdoor space radiation cooling unit's both ends pass through connecting piece group respectively with heat exchange assembly's both ends are connected. Like this, because the technical scheme make full use of current heat exchange assemblies and the bright system of outside confession that this application provided, thereby can its structure of effectual simplification, reduction production manufacturing and running cost, simultaneously because the technical scheme that this application provided has increased the radiation cooling unit that can independent existence on current heating system's basis, and be connected this radiation cooling unit through connecting piece group and heat exchange assemblies's both ends, realize when needing to reduce indoor temperature through heat exchange assemblies with heat discharge outdoor under the radiation cooling unit cooperation, reach the purpose that reduces indoor temperature.
In the above embodiment, according to the indoor space environment, in order to the structural design of floor, heat exchange assembly 1 described in this application should include at least a set of heat exchanger, when the space is great, or the room in the floor is small partially, can constitute for a plurality of heat exchangers jointly, namely each group of heat exchanger concatenates as an integral heat exchanger group through connecting piece group 3, the both ends of heat exchanger group pass through connecting piece group 3 and communicate with the heating cooling circulation total system of outside. It is corresponding, borrow for reference current heating system's structural feature, this application connector group 3 include conveyer pipe 4 and surely end valve 5, the heat exchanger group passes through conveyer pipe 4 and outside heating cooling cycle total system intercommunication, radiant cooling unit 2 pass through conveyer pipe 4 with heat exchanger group connect, equally divide on two conveyer pipes 4 that heat exchanger group and outside heating cooling cycle total system are connected and do not arrange and surely end valve 5, equally divide on two conveyer pipes 4 that radiant cooling unit 2 and heat exchanger group are connected and do not arrange and surely end valve 5.
Further, as the focus of the improvement of the present application, the radiation cooling unit 2 described in the present application may have various structures, such as a radiation heat dissipation structure formed by combining a protective layer, a radiation film, a first adhesive layer, a second adhesive layer, and heat dissipation silicone. However, the structure can only play a role of reflection, and the strength of the structure needs to be increased, so that the radiation cooling unit 2 cannot be independently arranged outdoors, so that the radiation cooling unit 2 with another structure is adopted in the application, namely, the radiation cooling unit 2 comprises a shell 6, a circulating heat exchange water pipe 7 and a radiation cooling heat dissipation component 8, the circulating heat exchange water pipe 7 is arranged in an empty cavity of the shell 6, and the radiation cooling heat dissipation component 8 is covered on the side surface of the installation cavity, which is open. In order to improve the heat dissipation and to avoid heat accumulation in the environment surrounding the radiant cooling unit 2, the housing 6 is a closable housing made of a heat insulating material. Correspondingly, in order to improve the effect of heat transfer, this application circulation heat transfer water pipe 7 for arranging the heat transfer calandria in the installation cavity, the both ends of wearing out the casing of heat transfer calandria are passed through conveyer pipe 4 and are connected with the heat exchanger group. Meanwhile, the radiation cooling heat dissipation assembly 8 at least comprises a radiation cooling film 9, and the opened side face of the installation cavity is sealed by the radiation cooling film 9. The radiation cooling film 9 is a selective reflection radiation film. At this moment, in order to prolong the service life of the radiation cooling film 9 and avoid being easily damaged in the outdoor space, the radiation cooling heat dissipation assembly 8 further comprises a glass cover plate 10, and the glass cover plate 10 is arranged on the installation cavity outside the radiation cooling film 9.
Example one
Fig. 1 specifically operates as: the pipelines a and b are connected with the city heat distribution pipeline, the valves c and d are closed in winter, and the valves e and f are opened to allow hot water to enter the radiator through the pipeline b to supply heat to the indoor. The valve is closed in summer, the valve is opened, the radiation cooling plate reflects light waves outside a wave band of 8-13 microns in sunlight by using a selective radiation body in the daytime, and has complete radiation performance on the light waves in the wave band of 8-13 microns, so that the radiation cooling plate is not heated by the sunlight, the heat of the radiation cooling plate is dissipated to the sky in a radiation mode, circulating water at the bottom is cooled, cooling water enters the radiator through a pipeline to cool a room, the temperature of the room is reduced, and the water in the radiator enters the radiation cooling plate structure again after absorbing the heat, so that the circulation is realized. The radiation cooling plate not only has the function of cooling water in daytime, but also has the function of cooling water at night, and realizes all-weather cooling of water. The whole system does not need power supply, and the circulation is carried out by taking the density difference of water in the pipeline as power, so that zero energy consumption of the whole system is realized.
Fig. 2 is a structural view of a radiation cooling plate unit. The top is cover glass with high transmissivity, the bottom of the radiation cooling film is a coil pipe, and flowing water is filled in the coil pipe.

Claims (9)

1. The utility model provides a compound heat exchanger system based on heat supply and self-refrigeration, includes heat exchange assembly (1), heat exchange assembly (1) arrange in the indoor space that needs carry out the heat exchange, its characterized in that: the composite heat exchanger system further comprises a radiation cooling unit (2) and a connecting piece group (3), the heat exchange assembly (1) is communicated with an external heating and cooling circulation total system through the connecting piece group (3), and two ends of the radiation cooling unit (2) arranged in the outdoor space are respectively connected with two ends of the heat exchange assembly (1) through the connecting piece group (3).
2. The heating and self-cooling based compound heat exchanger system of claim 1, wherein: the heat exchange assembly (1) comprises at least one group of heat exchangers, each group of heat exchangers are connected in series to form an integral heat exchanger group through a connecting piece group (3), two ends of the heat exchanger group are communicated with an external heating and cooling circulation main system through the connecting piece group (3), and two ends of the radiation cooling unit (2) are respectively connected with two ends of the heat exchanger group through the connecting piece group (3).
3. The heating and self-cooling based compound heat exchanger system according to claim 1 or 2, wherein: connecting piece group (3) including conveyer pipe (4) and cut and stop valve (5), the heat exchanger group passes through conveyer pipe (4) and outside heating cooling cycle total system intercommunication, radiant cooling unit (2) pass through conveyer pipe (4) with the heat exchanger group be connected, equally divide on two conveyer pipes (4) that heat exchanger group and outside heating cooling cycle total system are connected and respectively arrange cut and stop valve (5), also equally divide on two conveyer pipes (4) that radiant cooling unit (2) and heat exchanger group are connected and respectively arrange cut and stop valve (5).
4. The heating and self-cooling based compound heat exchanger system of claim 3, wherein: the radiation cooling unit (2) comprises a shell (6), a circulating heat exchange water pipe (7) and a radiation cooling and heat dissipation assembly (8), wherein the circulating heat exchange water pipe (7) is arranged in an empty installation cavity of the shell (6), and the radiation cooling and heat dissipation assembly (8) is covered on the side face of the installation cavity, which is open.
5. The heating and self-cooling based compound heat exchanger system of claim 4, wherein: the shell (6) is a closable shell made of heat-insulating material.
6. The heating and self-cooling based compound heat exchanger system of claim 5, wherein: the circulating heat exchange water pipe (7) is a heat exchange calandria arranged in the installation cavity, and the two ends of the heat exchange calandria penetrating out of the shell are connected with the heat exchanger through the conveying pipe (4).
7. The heating and self-cooling based compound heat exchanger system of claim 6, wherein: the radiation cooling heat dissipation assembly (8) at least comprises a radiation cooling film (9), and the open side surface of the installation cavity is sealed by the radiation cooling film (9).
8. The heating and self-cooling based compound heat exchanger system of claim 7, wherein: the radiation cooling heat dissipation assembly (8) further comprises a glass cover plate (10), and the glass cover plate (10) is arranged on the installation cavity on the outer side of the radiation cooling film (9).
9. The heating and self-cooling based compound heat exchanger system of claim 8, wherein: the radiation cooling film (9) is a selective reflection radiation film.
CN202111048869.XA 2021-09-08 2021-09-08 Composite heat exchanger system based on heat supply and self-refrigeration Pending CN113739295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111048869.XA CN113739295A (en) 2021-09-08 2021-09-08 Composite heat exchanger system based on heat supply and self-refrigeration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111048869.XA CN113739295A (en) 2021-09-08 2021-09-08 Composite heat exchanger system based on heat supply and self-refrigeration

Publications (1)

Publication Number Publication Date
CN113739295A true CN113739295A (en) 2021-12-03

Family

ID=78737052

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111048869.XA Pending CN113739295A (en) 2021-09-08 2021-09-08 Composite heat exchanger system based on heat supply and self-refrigeration

Country Status (1)

Country Link
CN (1) CN113739295A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108891115A (en) * 2018-08-24 2018-11-27 宁波瑞凌节能环保创新与产业研究院 A kind of radiation refrigeration film of achievable passive cooling
CN109539602A (en) * 2018-10-10 2019-03-29 华中科技大学 A kind of house heat collection heat-extraction system based on sky radiation and solar energy heating
CN208920438U (en) * 2018-10-11 2019-05-31 宁波瑞凌节能环保创新与产业研究院 A kind of shady and cool library roof with radiation refrigeration function
CN110057005A (en) * 2019-05-13 2019-07-26 南京工业大学 Novel split air conditioner device
US20190316854A1 (en) * 2018-04-16 2019-10-17 Romy M. Fain Fabrication methods, structures, and uses for passive radiative cooling
CN210463384U (en) * 2019-08-02 2020-05-05 广东美的制冷设备有限公司 Air conditioning system
CN211138370U (en) * 2019-04-30 2020-07-31 宁波瑞凌新能源科技有限公司 Refrigeration film
CN111609596A (en) * 2020-05-26 2020-09-01 宁波瑞凌新能源科技有限公司 Radiation refrigeration film, application thereof and radiation refrigeration product

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190316854A1 (en) * 2018-04-16 2019-10-17 Romy M. Fain Fabrication methods, structures, and uses for passive radiative cooling
CN108891115A (en) * 2018-08-24 2018-11-27 宁波瑞凌节能环保创新与产业研究院 A kind of radiation refrigeration film of achievable passive cooling
CN109539602A (en) * 2018-10-10 2019-03-29 华中科技大学 A kind of house heat collection heat-extraction system based on sky radiation and solar energy heating
CN208920438U (en) * 2018-10-11 2019-05-31 宁波瑞凌节能环保创新与产业研究院 A kind of shady and cool library roof with radiation refrigeration function
CN211138370U (en) * 2019-04-30 2020-07-31 宁波瑞凌新能源科技有限公司 Refrigeration film
CN110057005A (en) * 2019-05-13 2019-07-26 南京工业大学 Novel split air conditioner device
CN210463384U (en) * 2019-08-02 2020-05-05 广东美的制冷设备有限公司 Air conditioning system
CN111609596A (en) * 2020-05-26 2020-09-01 宁波瑞凌新能源科技有限公司 Radiation refrigeration film, application thereof and radiation refrigeration product

Similar Documents

Publication Publication Date Title
CN109686887A (en) A kind of cylinder power battery liquid cooling heat management structure for preventing thermal runaway from extending
CN104719043A (en) Phase-change heat-storage greenhouse seedling device
CN113374118A (en) Novel phase-change energy-saving wall based on active and passive adjustment technology
CN101929764A (en) Solar energy-air-geothermal energy three-heat-source heat pump air conditioning unit
CN109631416B (en) Water-gas dual-purpose flat-plate solar heat collection and radiation refrigeration comprehensive utilization device
CN215166831U (en) Novel phase-change energy-saving wall based on active and passive adjustment technology
CN101929733A (en) Solar energy-air-geothermal energy three-heat-source heat pump water heater
CN204963239U (en) Dull and stereotyped solar energy air heat collector of through type
CN113739295A (en) Composite heat exchanger system based on heat supply and self-refrigeration
CN113739434A (en) Solar energy multistage phase change heat storage heating system
CN208075062U (en) Combined cooling heating and power integrated device based on radiation effect
CN107044736B (en) Phase-change heat-storage anti-freezing solar heat collector
CN216668004U (en) Solar building wall
CN206130430U (en) Frostproofing protection device of pipeline of frostproofing protection device of pipeline and liquid energy storage tank
CN201811380U (en) Solar energy-air-geothermal energy three-heat-source heat pump air conditioning unit
CN202188666U (en) Solar collector
CN213395986U (en) System comprising photovoltaic photo-thermal phase change water tank, special Lambert wall and plants
CN212842300U (en) Photovoltaic photo-thermal-water tank module
CN114543217A (en) Embedded pipe type phase change enclosure structure system cooled by solar energy and sky radiation
CN208720337U (en) Photo-thermal architecture-integral heating system
CN112944721A (en) Small-size many antithetical couplet confession system based on sky radiation suitable for it is outdoor
CN202955881U (en) Heating medium superconducting tube plate integration collector
CN201903193U (en) Gravity heat pipe type flat-plate solar heat collector
CN214891905U (en) System for indoor heat supply and heat preservation
CN218846343U (en) Assembled phase change radiation wallboard

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20211203

RJ01 Rejection of invention patent application after publication