CN223484546U - Cold and hot water unit based on comprehensive utilization of radiant heat - Google Patents

Cold and hot water unit based on comprehensive utilization of radiant heat

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Publication number
CN223484546U
CN223484546U CN202422077114.8U CN202422077114U CN223484546U CN 223484546 U CN223484546 U CN 223484546U CN 202422077114 U CN202422077114 U CN 202422077114U CN 223484546 U CN223484546 U CN 223484546U
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China
Prior art keywords
heat
cold
heat collecting
radiation
air source
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CN202422077114.8U
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Chinese (zh)
Inventor
刘建华
吴延涛
王琨
刘金雨
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Shandong Grad Group Co Ltd
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Shandong Grad Group Co Ltd
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    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

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Abstract

The utility model discloses a cold and hot water unit based on comprehensive utilization of radiant heat. The radiation refrigeration film is arranged at the bottom of the heat collecting tube heat collector, solar energy and heat radiation in the gaps of the tube wall of the heat collecting tube are transmitted to the heat collecting tube, so that the heat radiation is obtained by the heat collecting tube, the surface temperature of the cooling plate can be effectively reduced, and the surface temperature or the air inlet temperature of the fin type condenser fin of the air source unit can be effectively reduced. The cooling capacity of the radiation refrigeration film with lower temperature is transferred into the cold collecting cavity through the cooling plate by utilizing the refrigeration principle of the radiation refrigeration film, meanwhile, the air flowing through the cold collecting cavity can be effectively reduced, the surface temperature or the air inlet temperature of the fin type condenser fin of the air source unit is reduced, the refrigeration efficiency EER value of the air source unit is further improved, the heat collecting capacity of the heat collecting tube heat collector and the refrigeration efficiency EER value of the air source unit are improved, and the purposes of comprehensive utilization of radiation energy, energy conservation and environmental protection are achieved.

Description

Cold and hot water unit based on comprehensive utilization of radiant heat
Technical Field
The utility model relates to the technical field of comprehensive utilization of clean energy, in particular to a cold and hot water unit for comprehensively utilizing solar radiant heat.
Background
In the heat utilization of solar water heater, the key is to convert the solar radiation energy into heat energy, the heat collector is a key part of various solar devices, the existing solar heat collector in the market at present mostly adopts heat collecting pipes and flat-plate solar heat collecting structures, the solar heat collector has the advantages of quick heat absorption and high efficiency, but is influenced by factors such as the outer diameter size of the heat collecting pipes, installation operation space and the like, gaps of 22-35 mm are reserved between the pipe walls of the heat collecting pipes, and the utilization rate of solar radiation heat in the illumination range of unit area is low.
The fin type condenser of the air source water chilling unit is easy to generate high-pressure frequent alarm faults in refrigeration working conditions due to overhigh surface temperature of long-term sunshine irradiation when outdoor air temperature of the air source water chilling unit is higher than 40 ℃ in parts of south of the Yangtze river and northwest, so that the refrigerating efficiency of the unit is reduced and even the unit cannot be normally used.
As a development, production and construction unit in the field of clean energy, an important problem to be solved is to realize effective extraction, energy storage and comprehensive utilization of solar heat, and safe, stable and efficient operation of a hot water and air source cold (hot) water system of a solar heat collector can be ensured in hot summer or severe cold winter.
Aiming at the functional characteristics, the technical problems to be solved at present are how to design a cold and hot water unit through technical improvement, which can realize the improvement of heat collection efficiency, and can integrate the functions of energy storage, heat dissipation on the surface of a condenser fin or reduction of the air inlet temperature of the fin, and the like, so as to solve the technical problems of low heat collection efficiency in summer and low energy efficiency of an air source water heater unit.
Disclosure of Invention
The utility model provides a cold and hot water unit based on comprehensive utilization of radiant heat, which is characterized in that a radiant refrigeration film and a cooling plate are arranged at the bottom of a heat collecting tube collector, all sunlight reflected by the radiant refrigeration film can be effectively reflected to the surface of the heat collecting tube by the radiant refrigeration film, the surface temperature of the film is reduced to be lower than the ambient temperature by radiation heat exchange, the surface temperature of the cooling plate can be effectively reduced while the heat collecting tube obtains heat radiation heat, the surface temperature or air inlet temperature of a condenser fin of an air source unit can be effectively reduced, and the refrigeration efficiency EER value of the air source unit is further improved.
In order to achieve the technical aim, the utility model adopts the following technical scheme that the cold and hot water unit based on comprehensive utilization of radiant heat comprises a solar heat collector, a radiant refrigeration film, a cooling plate, an air source unit, a cold collection cavity and a box body;
The solar heat collector comprises a water tank and an inclined fixing frame, a plurality of heat collecting pipes are fixed above the inclined fixing frame, a radiation refrigeration film is arranged below the heat collecting pipes, a cooling plate is arranged below the radiation refrigeration film, a rib plate fixed on the inclined fixing frame is arranged below the cooling plate, a cold collecting cavity of a sealing structure is arranged below the inclined fixing frame, and the cold collecting cavity faces to the air inlet side of the air source unit.
The cold collection cavity comprises a cold collection cavity left side plate, condenser fins of an air source unit and front and rear side plates, and an air inlet is formed in each side plate.
The radiation refrigeration film is arranged in an integrated structure, and the gap between the radiation refrigeration film and the heat collecting tube is 15-30 mm. The radiation refrigeration film is a spectrum selective reflection film.
Preferably, the radiation refrigeration film is arranged in a C-shaped or U-shaped structure, and the bottom of the radiation refrigeration film is coated with the heat collecting tube so as to reflect solar energy to the outer wall surface of the heat collecting tube to the maximum extent.
The solar heat collector is characterized in that the plurality of heat collecting pipes are arranged, gaps of 22-35 mm are arranged between adjacent heat collecting pipes, and the arc-shaped radiation refrigerating films in the above gap range reflect solar radiation heat to the outer wall of the heat collecting pipe, so that the solar radiation energy in unit area is maximally utilized, and the heat collecting efficiency and the heat collecting quantity of the heat collecting pipe heat collector are improved.
The utility model has the advantages that the refrigeration efficiency EER lifting principle is that the refrigeration capacity of the radiation refrigeration film with lower temperature is transferred into the cold collecting cavity through the cooling plate by utilizing the radiation refrigeration film refrigeration principle, meanwhile, the air flowing through the cold collecting cavity can be effectively reduced, the surface temperature or the air inlet temperature of the fin type condenser fin of the air source unit is reduced, and the refrigeration efficiency EER value of the air source unit is further improved.
The improved solar heat collector has the beneficial effects that the radiation refrigeration film is arranged at the bottom of the heat collecting tube heat collector, solar energy and heat radiation in the gaps of the tube wall of the heat collecting tube are transferred to the heat collecting tube, the heat collecting tube can obtain heat radiation, the surface temperature of the cooling plate can be effectively reduced, the surface temperature or the air inlet temperature of the fin type condenser fin of the air source unit can be effectively reduced, meanwhile, the refrigeration efficiency EER value of the air source unit can be further improved, the heat collecting quantity of the heat collecting tube heat collector and the refrigeration efficiency EER value of the air source unit are improved, and the purposes of comprehensive utilization of radiation energy, energy conservation and environmental protection are achieved.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the principle and structure of the machine set of the present utility model.
Fig. 2 is a schematic top view of the present utility model.
FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2.
In the figure, 1, a solar heat collector, 11, a heat collecting module base, 12, a heat collecting pipe fixing frame, 13, a heat collecting pipe, 14, a rib plate, 15, an upright post, 16, a solar water inlet, 17, a water collecting tank, 18, a solar water outlet, 19, a left side plate of a cold collecting cavity, 2, a radiation refrigerating film, 3, a cooling plate, 4, a side bracket, 5, an air source unit, 51, a condenser fin, 52, a condensing fan, 53, a unit upper panel, 54, a unit right panel, 55, a water inlet and outlet pipe, 56, a unit base, 57, a unit rear panel, 58, a unit front panel, 6, a cold collecting cavity, 7, an air inlet, 8, a bottom plate, 9, a rear side plate of the cold collecting cavity, 10, a front side plate of the cold collecting cavity, 20 and rivets.
Detailed Description
The utility model is further described below with reference to examples, the specific structure and the forming mode of the utility model are shown in the drawings, and a person skilled in the art can perform technical extension on the basis of the following technology, so that the technical perfection or expansion of the technical scheme can be realized, and the protection scope of the utility model is limited only by the claims.
The cold and hot water unit based on comprehensive utilization of radiant heat is shown in fig. 1, and comprises a solar heat collector 1, a radiant refrigeration film 2, a cooling plate 3, an air source unit 5, a side bracket 4, a cold collecting cavity 6, a bottom plate 8, rivets 20 and other connecting and fixing parts, wherein the cooling plate 3 is a thin-wall plate or a formed plate with good heat transfer performance such as aluminum, copper and the like, and the design purpose of the cold and hot water unit is to realize uniform and stable heat conduction.
As shown in fig. 1, the concrete connection structure of the utility model is that a bottom plate 8 is arranged on the ground surface, a heat collecting module base 11 and a stand column 15 are arranged on the bottom plate 8, and the inclined support of a heat collecting pipe fixing frame 12 is realized through the heat collecting module base 11 and the stand column 15. The top of the heat collecting pipe fixing frame 12 is provided with a side bracket 4, the support and the fixation of a water collecting tank 17 are realized through the side bracket 4, a plurality of heat collecting pipes 13 are obliquely inserted on the water collecting tank 17, and the heat collecting pipes 13 are obliquely fixed on the heat collecting pipe fixing frame 12. The air source unit 5 comprises a condenser fin 51, a condensing fan 52, a unit upper panel 53, a unit right panel 54, a water inlet and outlet pipe 55, a unit base 56, a unit rear panel 57 and a unit front panel 58, wherein the condenser fin 51 is arranged on the left side of the air source unit 5, and the above structures are firmly fixed by adopting connecting pieces such as rivets 20. The condenser fins 51 are arranged towards the cold collecting cavity 6.
The cold collecting cavity 6 is a space region formed by a bottom plate 8, a cold collecting cavity rear side plate 9, a cold collecting cavity front side plate 10, a cold collecting cavity left side plate 19 and condenser fins 51 of the air source unit 5, and forms a closed space on the air inlet side of the air source unit 5, and the closed space can operate at a lower temperature and provide air supply conditions for the air source unit 5.
The solar heat collector 1 and the air source unit 5 are mature products of conventional market technology, and the working principle of the solar heat collector is not described in detail here.
The bottom plate 8 is in lap joint with the heat collecting module base 11, the bottom of the heat collecting pipe fixing frame 12 and the unit base 56, and is firmly connected through rivets 20 or other connecting pieces, so that a stable foundation structure is formed for the device.
The rear side plate 9 of the cooling chamber is in lap joint or an integral structure with the rear panel 57 of the unit and is firmly connected through rivets 20 or other connecting pieces, and the front side plate 10 of the cooling chamber is in lap joint or an integral structure with the front panel 58 of the unit and is firmly connected through rivets 20 or other connecting pieces.
The rear side plate 9 and the front side plate 10 of the cold collecting cavity are respectively provided with an air inlet 7, the opening size of the air inlet 7 is determined according to the air quantity of the condensing fan 52 and the average air speed of the air inlet 7, and a stable ventilation structure is formed between the air source unit 5 and the air collecting cavity. The air inlet 7 is provided with a protective structure and accessories such as an electric air valve, a filter screen and the like, so that the air flow entering the air source unit 5 can be controlled, and external foreign matters are prevented from entering.
The upper part of the left side plate 19 of the cold collecting cavity is connected with the upper panel 53 of the unit in a lap joint way and is firmly connected with the upper panel by rivets 20 or other connecting pieces, and the left side plate 19 of the cold collecting cavity is arranged on the upper inclined surface of the heat collecting pipe fixing frame 12 of the solar heat collector 1 and is firmly connected with the upper panel by rivets 20 or other connecting pieces.
The radiation refrigeration film 2 is arranged below the vacuum heat collecting tube 13 and is attached to the surface of the cooling plate 3, and the cooling plate 3 is arranged on the outer surface of the left side plate 19 of the cold collecting cavity and is firmly fixed through other connecting pieces such as rivets 20.
Preferably, the radiation refrigeration film 2 adopts a C-shaped or U-shaped and other arc-shaped outer cladding structure according to the diameter of the heat collecting tube 13, the structure can reflect solar energy to the outer wall surface of the heat collecting tube 13 to the greatest extent, the distance between the radiation refrigeration film 2 and the heat collecting tube 13 is determined according to the diameter of the heat collecting tube 13 and the distance between the heat collecting tube 13, the distance is recommended to be 15-30 mm, and the optimal distance between the outer surface of the radiation refrigeration film 2 and the outer diameter of the heat collecting tube 13 is 20mm under the optimal condition.
In this embodiment, the radiation refrigeration film 2 is a spectrum selective reflective film, preferably a 50 μm thick polymer super surface radiation refrigeration (‌ PMRC) ‌ film, and the radiation refrigeration film 2 reflects almost all incident sunlight, ‌ reflects heat radiation in an atmospheric transparent window, and the polymer super surface radiation refrigeration (‌ PMRC) ‌ film ‌ ‌ exhibits excellent all-weather cooling performance, ‌ and can be easily integrated and fixed into various devices.
The radiation refrigeration film 2 is stuck and arranged on the outer surfaces of the rear side plate 9 of the cold collecting cavity, the front side plate 10 of the cold collecting cavity, the upper panel 53 of the unit, the right panel 54 of the unit, the rear panel 57 of the unit and the front panel 58 of the unit, the cooling refrigeration capacity of the radiation refrigeration film 2 is calculated to be about 3KW by taking the outer surface of the shell of the air cooling module unit with the refrigeration capacity of 60KW as an example, and the refrigerating efficiency of the unit can be improved by more than 5 percent.
Further, the diameter of the heat collecting tube 13 is generally phi 57mm, the tube spacing is 27mm, through practical tests, the solar radiation energy passing through the space part of the tube spacing is about 10-15% of the total projection area of the solar heat collecting tube 1, and the heat reflected to the heat collecting tube 13 by the radiation refrigerating film 2 after irradiating the radiation refrigerating film 2 can improve the heat collecting efficiency of the solar heat collecting tube 1 by 10-15%.
According to the utility model, the radiation refrigeration film 2 is arranged at the bottom of the heat collecting tube 13 of the heat collecting tube collector 1, solar heat radiation in the gap of the tube wall of the heat collecting tube 13 is transferred to the heat collecting tube 13, so that the surface temperature of the cooling plate 3 can be effectively reduced, the surface temperature or the air inlet temperature of fins of the fin type condenser 5 of the air source unit 5 can be effectively reduced while the heat collecting tube 13 obtains heat radiation heat, the refrigeration efficiency EER value of the air source unit 5 can be improved by more than 5%, the heat collecting efficiency of the heat collecting tube collector can be improved by more than 10-15%, and the dual-improvement of the heat collecting capacity of the heat collecting tube collector 1 and the refrigeration efficiency EER value of the air source unit 5 can be realized.
The utility model has reasonable design and simple structure, and can comprehensively and complementarily recycle light energy, radiant energy and air energy, thereby being energy-saving, environment-friendly, safe and reliable, and being particularly suitable for the comprehensive utilization of clean energy sources in places such as hotels, restaurants, catering, bath centers and the like and air conditioning and cold and hot water systems.

Claims (6)

1.一种基于辐射热综合利用的冷热水机组，其特征在于：其包括太阳能集热器、辐射制冷薄膜、冷却板、空气源机组、集冷腔、箱体；1. A hot and cold water unit based on the comprehensive utilization of radiant heat, characterized in that it includes a solar collector, a radiant cooling film, a cooling plate, an air source unit, a cold collection cavity, and a box; 所述的空气源机组的进风一侧部设置有太阳能集热器；所述的太阳能集热器包括水箱以及斜置固定架，所述的斜置固定架的上方固定有若干集热管，所述的集热管下方为辐射制冷薄膜，辐射制冷薄膜的下方为冷却板，冷却板的下方为固定在斜置固定架上的筋板；所述的斜置固定架的下方为密封结构的集冷腔，所述的集冷腔朝向空气源机组的进风一侧设置。A solar thermal collector is provided on the air inlet side of the air source unit; the solar thermal collector includes a water tank and an inclined fixing frame, a plurality of heat collecting tubes are fixed above the inclined fixing frame, a radiation cooling film is provided below the heat collecting tubes, a cooling plate is provided below the radiation cooling film, and a rib plate fixed on the inclined fixing frame is provided below the cooling plate; a cold collecting cavity with a sealed structure is provided below the inclined fixing frame, and the cold collecting cavity is provided toward the air inlet side of the air source unit. 2.如权利要求1所述的一种基于辐射热综合利用的冷热水机组，其特征在于：所述的集冷腔由集冷腔左侧板以及空气源机组的冷凝器翅片和前后的侧板组成，所述的侧板上设置有进风口。2. A hot and cold water unit based on comprehensive utilization of radiant heat as described in claim 1, characterized in that: the cold collection chamber is composed of a left side plate of the cold collection chamber and the condenser fins and front and rear side plates of the air source unit, and the side plates are provided with air inlets. 3.如权利要求1所述的一种基于辐射热综合利用的冷热水机组，其特征在于：所述的辐射制冷薄膜为一体结构设置，辐射制冷薄膜与集热管外壁之间间隙为15～30mm范围。3. A hot and cold water unit based on comprehensive utilization of radiant heat as described in claim 1, characterized in that the radiant cooling film is an integrated structure, and the gap between the radiant cooling film and the outer wall of the heat collecting tube is in the range of 15 to 30 mm. 4.如权利要求1所述的一种基于辐射热综合利用的冷热水机组，其特征在于：所述的辐射制冷薄膜为光谱选择性反射膜。4. A hot and cold water unit based on comprehensive utilization of radiant heat as claimed in claim 1, characterized in that the radiant cooling film is a spectrally selective reflective film. 5.如权利要求4所述的一种基于辐射热综合利用的冷热水机组，其特征在于：所述的辐射制冷薄膜采用C型或U型结构设置，其底部包覆集热管设置以最大限度将太阳光能反射到集热管外壁表面。5. A hot and cold water unit based on the comprehensive utilization of radiant heat as described in claim 4, characterized in that: the radiant cooling film is arranged in a C-shaped or U-shaped structure, and its bottom is covered with a heat collecting tube to maximize the reflection of solar energy onto the outer wall surface of the heat collecting tube. 6.如权利要求1所述的一种基于辐射热综合利用的冷热水机组，其特征在于：所述的集热管为多根设置，相邻集热管之间设置有22～35mm间隙。6. A hot and cold water unit based on comprehensive utilization of radiant heat as claimed in claim 1, characterized in that: the heat collecting tubes are provided in plurality, and a gap of 22 to 35 mm is provided between adjacent heat collecting tubes.
CN202422077114.8U 2024-08-27 2024-08-27 Cold and hot water unit based on comprehensive utilization of radiant heat Active CN223484546U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202422077114.8U CN223484546U (en) 2024-08-27 2024-08-27 Cold and hot water unit based on comprehensive utilization of radiant heat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202422077114.8U CN223484546U (en) 2024-08-27 2024-08-27 Cold and hot water unit based on comprehensive utilization of radiant heat

Publications (1)

Publication Number Publication Date
CN223484546U true CN223484546U (en) 2025-10-28

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ID=97430970

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202422077114.8U Active CN223484546U (en) 2024-08-27 2024-08-27 Cold and hot water unit based on comprehensive utilization of radiant heat

Country Status (1)

Country Link
CN (1) CN223484546U (en)

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