CN217541141U - Heat collection evaporator for heat pump of solar energy and air source composite heat source - Google Patents
Heat collection evaporator for heat pump of solar energy and air source composite heat source Download PDFInfo
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- CN217541141U CN217541141U CN202220855608.2U CN202220855608U CN217541141U CN 217541141 U CN217541141 U CN 217541141U CN 202220855608 U CN202220855608 U CN 202220855608U CN 217541141 U CN217541141 U CN 217541141U
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Abstract
The utility model discloses a heat collection evaporator for a heat pump with a solar energy and air source composite heat source, which comprises a supporting structure, a heat exchange tube, a liquid supply main tube, an air return main tube and a bracket, wherein the heat exchange tube comprises a plurality of straight tubes which are arranged in parallel and connecting elbows which are arranged at two ends of the straight tubes, each straight tube is provided with a plurality of fins, and an included angle between a plane where the heat exchange tube is positioned and an installation plane is an evaporator inclination angle; a reflector is arranged below the straight pipe and along the trend of the straight pipe; the reflector is a parabolic reflector or a flat reflector. The utility model discloses an add solar energy reflection lens at the finned tube rear for the reinforcing shines the solar radiation intensity on the finned tube. The solar reflecting lens and the finned tube are arranged in a dispersed manner, so that higher natural convection heat exchange efficiency can be achieved. The heat collection evaporator can absorb solar energy and air energy at the same time in the daytime, and can take heat from the air at night or in rainy days to meet the heat supply requirement of users.
Description
Technical Field
The utility model relates to a solar thermal energy pump field, the heat collection evaporimeter is used to heat pump of the compound heat source in solar energy and air source of a specific design.
Background
With the development of economy and improvement of living standard of people in China, the energy consumption of China is increasing at a high speed, and the solar energy utilization technology is rapidly developed in the field of energy conservation and emission reduction. In the heating field, heat pump technology is considered one of the most promising ways to save energy. The solar heat pump system organically combines a heat pump technology and a solar heat utilization technology, and can absorb heat from the ambient environment and also can absorb heat from solar radiation in the working process. However, the traditional solar heat pump system has the defects of poor stability and susceptibility to environmental factors such as seasons, climate, day and night temperature difference and the like. At a cold night or on a rainy day, the solar radiation intensity is very weak, so that the heat collection efficiency of the solar heat collection evaporator is greatly reduced, and the system cannot meet the normal heat supply requirement. Although the stability of the electric auxiliary heating system can be improved, the electric auxiliary heating system consumes electric energy and is poor in economic benefit. It is therefore proposed to combine a cleaner and energy-efficient air energy to compensate for its instability.
In the existing solar heat pump system, the device for collecting solar energy and the evaporator are either two parts or are integrated into a whole, which is called a heat collecting evaporator, namely, a refrigerant directly absorbs heat in a heat collector and evaporates. The latter reduces secondary heat exchange and has higher heat exchange efficiency. At present, most of heat collection evaporator structures in the traditional solar heat pump system are fin type or flat type, the former can well absorb air energy but has low absorption efficiency on solar energy, and the latter can well absorb solar energy but has limited absorption on air energy. At present, the traditional heat collection evaporator has low ribbing coefficient and poor heat exchange effect with air; some evaporators are provided with glass covers, so that the heat convection with air is greatly weakened; some heat collection evaporators are not optimized enough in structural form, are difficult to install and maintain due to overlarge area, and absorb and utilize less solar energy due to the fact that the area is too small. Therefore, those skilled in the art have been devoted to develop a high-efficiency heat-collecting evaporator for a heat pump using a solar energy and air source composite heat source, so as to achieve high-efficiency absorption of solar energy and air energy.
SUMMERY OF THE UTILITY MODEL
To above-mentioned prior art, for high-efficient, make full use of solar energy and air energy, the utility model provides a heat collection evaporimeter is used to heat pump of compound heat source in solar energy and air source. In order to enhance the heat exchange effect with air, the device adopts an annular rib finned tube. The surface of the finned tube adopts an electroplated black chromium solar energy absorption coating, and a solar reflector is additionally arranged at the rear part of the finned tube, and the reflector is in a paraboloid or plane form and is used for enhancing the intensity of solar radiation irradiated on the finned tube. The reflector and the finned tubes are distributed, so that higher natural convection heat exchange efficiency can be achieved. The heat collection evaporator can absorb solar energy in the daytime and air energy at the same time, and can take heat from the air at night or in rainy days to meet the heat supply requirement of users.
In order to solve the technical problem, the utility model provides a solar energy and heat collection evaporator for heat pump of compound heat source in air source, including bearing structure, heat exchange tube, confession liquid main, return air main and support, the heat exchange tube includes many parallel arrangement's straight tube and sets up the connecting bend at straight tube both ends, is equipped with a plurality of fins on each straight tube, the contained angle between the plane that the heat exchange tube is located and the mounting plane is the evaporimeter inclination; a reflector is arranged below the straight pipe and along the trend of the straight pipe; the reflector is a parabolic reflector or a flat reflector.
Further, heat pump is with heat collection evaporimeter, wherein:
the heat exchange tubes are longitudinally arranged; the number of the parabolic reflector is the same as that of the straight pipes, each parabolic reflector is positioned right below each straight pipe, and the concave surface of each parabolic reflector faces the straight pipe.
The heat exchange tubes are transversely arranged; the number of the plane reflection lenses is half of that of the straight pipes, each plane reflection lens is positioned below every two straight pipes, a certain angle is formed between each plane reflection lens and the plane where the heat exchange pipe is positioned, and the included angle between each plane reflection lens and the installation plane is smaller than the inclination angle of the evaporator.
The parabolic reflector or the planar reflector is made of stainless steel.
The support structure is made of angle steel.
The heat exchange pipe, the liquid supply main pipe and the air return main pipe are made of oxygen-free copper or alloy aluminum.
The heat exchange tube is internally provided with a refrigerant working medium, and the surfaces of the heat exchange tube and the fins are both electroplated with black-chromium solar selective absorbing coatings.
The fins are annular fins.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The utility model discloses well heat collection evaporimeter plane slope is placed, and the angle of inclination is the complementary angle of the average noon solar altitude angle in winter, and evaporation heat exchange tube and fin surface adopt the black chromium solar energy absorption coating of electroplating to add paraboloid/plane solar mirror, can effectively increase solar energy absorption efficiency.
(2) The utility model discloses a structure that single independent fin pipe is parallelly connected to be arranged and is formed can be nimble according to the load demand, adopts the fin pipe of corresponding figure, has extensive suitability.
(3) The heat collection evaporator can absorb heat in solar energy and air simultaneously, overcomes the defect that the traditional heat collector has time-interval property, and can achieve higher natural convection heat exchange efficiency due to reasonable and dispersed arrangement of the reflecting lens and the ribbed tubes.
Drawings
FIG. 1-1 is a schematic structural diagram of a heat collection evaporator 1 for a heat pump of a solar energy and air source composite heat source;
FIG. 1-2 isbase:Sub>A sectional view taken along line A-A shown in FIG. 1-1;
FIGS. 1-3 are enlarged partial views of B shown in FIGS. 1-2;
FIGS. 1-4 are side views of a heat collection evaporator for the heat pump of FIGS. 1-1;
FIG. 2-1 is a schematic view showing the construction of embodiment 2 of a heat collecting evaporator for a heat pump of a solar and air source composite heat source;
FIG. 2-2 is a cross-sectional view taken along line C-C as shown in FIG. 2-1;
FIG. 2-3 is an enlarged view of a portion of D shown in FIG. 2-2;
fig. 2-4 are side views of the heat collecting evaporator for the heat pump shown in fig. 2-1.
In the figure: the solar heat collector comprises a support structure 1, a heat exchange tube 2, a liquid supply main tube 3, an air return main tube 4, a paraboloid reflector 5, a fin 6, a support 7 and a plane reflector 8.
Detailed Description
The present invention will be further described with reference to the following drawings and specific examples, but the following examples are by no means limiting the present invention.
As shown in fig. 1-1 and fig. 1-2, the utility model provides a heat collection evaporator for heat pump of compound heat source in solar energy and air source, including bearing structure 1, heat exchange tube 2, confession liquid main 3, return-air main 4 and support 7, heat exchange tube 2 includes many parallel arrangement's straight tube and the connecting bend of setting at the straight tube both ends, is equipped with a plurality of fins 6 on every straight tube, contained angle between the plane at heat exchange tube 2 place and the mounting surface is the evaporator inclination, as shown in fig. 1-4 and fig. 2-4, the plane at heat exchange tube 2 place becomes angle for local solar altitude angle with the horizontal plane. A reflector is arranged below the straight pipe and along the trend of the straight pipe; the mirror plate is a parabolic mirror plate 5 or a plane mirror plate 8.
Example 1
As shown in fig. 1-1, 1-2, 1-3 and 1-4, the reflector plate is a parabolic reflector plate 5, and the heat exchange tube 2 is arranged longitudinally because for the parabolic reflector plate 5, if the heat exchange tube 2 (straight tube) is arranged transversely, end loss of the parabolic reflector plate 5 occurs. As shown in fig. 1-1 and fig. 1-4, a straight pipe with fins 6 and connecting elbows at two ends of the straight pipe form a heat exchange pipe 2, the heat exchange pipe 2 penetrates through a plurality of annular fins arranged in parallel to form an annular ribbed finned pipe, the surface of the heat exchange pipe 2 adopts a black-chromium-plated solar selective absorption coating, and a refrigerant working medium flowing and used for evaporation heat exchange is arranged inside the heat exchange pipe. The liquid supply pipe and the air return pipe are equally divided into a left path and a right path, and Y-shaped shunts are arranged behind the liquid supply main pipe 3 and the air return main pipe 4 to enable the two paths to be evenly divided. The number of the parabolic reflector 5 is the same as that of the straight pipes, each parabolic reflector 5 is positioned right below each straight pipe, and the concave surface of each parabolic reflector 5 faces the straight pipe. As shown in fig. 1-2 and 1-3, a parabolic reflector 5 fixed to the angle steel of the support structure 1 is provided behind each finned tube to enhance the intensity of solar radiation impinging on the finned tubes.
Example 2
As shown in fig. 2-1, 2-2, 2-3 and 2-4, the reflecting mirror is a flat reflecting mirror 8, and the heat exchanging pipe 2 is a copper pipe arranged transversely, because for the flat reflecting mirror 8, since the solar altitude varies in one day, arranging the heat exchanging pipe 2 (straight pipe) longitudinally results in that the reflecting light can be accurately irradiated onto the heat exchanging pipe 2 only for a very short time in one day. A flowing refrigerant used for evaporating and absorbing heat is arranged in the copper pipe; as shown in fig. 2-1 and 2-4, a plane mirror 8 is arranged below the copper tube, angle steels of the supporting structure 1 are arranged at the upper side and the lower side, and the angle steels at the upper side are connected with a bracket 7; the copper pipe is divided into an upper path and a lower path, and the copper pipe enters from the lower part and exits from the upper part; y-shaped shunts are arranged behind the liquid supply main pipe 3 and the air return main pipe 4 to ensure that the two paths of liquid are uniformly distributed. As shown in fig. 2-2 and fig. 2-3, the number of the plane reflection mirrors 8 is half of the number of the straight pipes, each plane reflection mirror 8 is located below every two straight pipes, the plane reflection mirror 8 is fixed on an angle steel of the support structure 1 to enhance the intensity of solar radiation irradiated on the finned pipe, as shown in fig. 2-4, a certain angle is formed between the plane reflection mirror 8 and the plane where the heat exchange pipe 2 is located, and the included angle between the plane reflection mirror 8 and the installation plane is smaller than the inclination angle of the evaporator.
In heat collection evaporimeter for heat pump in, parabolic mirror piece 5 or plane mirror piece 8 all adopts the stainless steel lens, can assemble solar ray to increase the solar radiation that the heat exchange tube accepted. The support structure 1 is made of angle steel. The heat exchange pipe 2, the liquid supply main pipe 3 and the air return main pipe 4 are made of oxygen-free copper or alloy aluminum. A refrigerant working medium is arranged inside the heat exchange tube 2, and black chromium solar selective absorption coatings are electroplated on the surfaces of the heat exchange tube 2 and the fins 6. The fins 6 are annular fins which perform natural convection with the air.
Although the present invention has been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit of the present invention.
Claims (8)
1. A heat collection evaporator for a heat pump with a solar energy and air source composite heat source comprises a supporting structure (1), a heat exchange tube (2), a liquid supply main tube (3), an air return main tube (4) and a support (7), wherein the heat exchange tube (2) comprises a plurality of straight tubes which are arranged in parallel and connecting elbows arranged at two ends of the straight tubes, each straight tube is provided with a plurality of fins (6), and an included angle between a plane where the heat exchange tube (2) is located and an installation plane is an evaporator inclination angle; the device is characterized in that a reflector is arranged below the straight pipe and along the trend of the straight pipe; the reflector is a parabolic reflector (5) or a flat reflector (8).
2. The heat collecting evaporator for a heat pump according to claim 1, characterised in that the heat exchange tubes (2) are arranged longitudinally; the number of the parabolic reflector (5) is the same as that of the straight pipes, each parabolic reflector (5) is positioned right below each straight pipe, and the concave surface of each parabolic reflector (5) faces the straight pipe.
3. The heat collecting evaporator for a heat pump according to claim 1, characterised in that the heat exchange tubes (2) are arranged in a transverse direction; the number of the plane reflection lenses (8) is half of the number of the straight pipes, each plane reflection lens (8) is positioned below every two straight pipes, a certain angle is formed between the plane reflection lenses (8) and the plane where the heat exchange pipe (2) is positioned, and the included angle between each plane reflection lens (8) and the installation plane is smaller than the inclination angle of the evaporator.
4. The heat collecting evaporator for a heat pump according to claim 2 or 3, wherein the parabolic mirror (5) or the planar mirror (8) is made of stainless steel.
5. The heat collecting evaporator for a heat pump according to claim 2 or 3, characterised in that the support structure (1) is made of angle steel.
6. The heat collecting evaporator for the heat pump according to claim 2 or 3, wherein the heat exchange pipe (2), the liquid supply main pipe (3) and the air return main pipe (4) are made of oxygen-free copper or aluminum alloy.
7. The heat collection evaporator for the heat pump according to claim 2 or 3, wherein a refrigerant working medium is arranged inside the heat exchange tube (2), and the surfaces of the heat exchange tube (2) and the fin (6) are both electroplated with a black-chromium solar selective absorption coating.
8. The heat collecting evaporator for a heat pump according to claim 2 or 3, characterised in that the fins (6) are ring fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220855608.2U CN217541141U (en) | 2022-04-12 | 2022-04-12 | Heat collection evaporator for heat pump of solar energy and air source composite heat source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220855608.2U CN217541141U (en) | 2022-04-12 | 2022-04-12 | Heat collection evaporator for heat pump of solar energy and air source composite heat source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217541141U true CN217541141U (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220855608.2U Expired - Fee Related CN217541141U (en) | 2022-04-12 | 2022-04-12 | Heat collection evaporator for heat pump of solar energy and air source composite heat source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217541141U (en) |
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2022
- 2022-04-12 CN CN202220855608.2U patent/CN217541141U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221004 |