CN215002373U

CN215002373U - Solar heat pump unit special for greenhouse

Info

Publication number: CN215002373U
Application number: CN202120797855.7U
Authority: CN
Inventors: 徐进峰; 王炜
Original assignee: Hubei Tiannengdiyuan Technology Co ltd
Current assignee: Hubei Tiannengdiyuan Technology Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-12-03
Anticipated expiration: 2031-04-19

Abstract

The utility model discloses a special solar thermal energy pump unit in greenhouse relates to heat pump set technical field, reduces along with outdoor temperature's reduction for solving current heat pump set heat supply capacity and heat supply performance coefficient, and the heat supply efficiency easily receives the problem of the influence of environment. Both ends all are provided with the connecting axle around solar panel, the support is installed to solar panel's lower extreme, and the support passes through the bearing with the connecting axle to be connected, step motor is installed to the front end of support, and step motor passes through screw connection with the support, and step motor passes through the coupling joint with the connecting axle, solar panel sets up to the arc structure, solar panel includes toughened glass, the thermal-arrest panel is installed to toughened glass's lower extreme, U type connection copper pipe is installed to the lower extreme of thermal-arrest panel, the lower extreme that the copper pipe was connected to the U type is provided with the heat preservation, galvanized steel sheet is installed to the lower extreme of heat preservation, and galvanized steel sheet and cementing heat preservation are connected.

Description

Solar heat pump unit special for greenhouse

Technical Field

The utility model relates to a heat pump set technical field specifically is a special solar thermal energy pump unit in greenhouse.

Background

A heat pump, also called a chiller, is an efficient heating device based on the second law of thermodynamics, which can transfer energy from a low temperature (low temperature heat reservoir) to a high temperature (high temperature heat reservoir). The total energy which can be provided for the high temperature is larger than the energy required by the operation of the high temperature, and the extra heat is obtained from the lower temperature under the action of the operation energy. The heat pump absorbs heat from a lower temperature part when low-boiling-point liquid is evaporated after being decompressed by the throttle valve, then compresses vapor by the compressor to increase the temperature, releases the absorbed heat when passing through the condenser to be liquefied, and then returns to the throttle valve. The circulation can continuously transfer heat from a place with lower temperature to a place with higher temperature (needing heat).

However, the heat supply capacity and the heat supply performance coefficient of the existing heat pump unit are reduced along with the reduction of the outdoor temperature, and the heat supply energy efficiency is easily influenced by the environment, so that the existing requirements are not met, and the solar heat pump unit special for the greenhouse is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special solar thermal energy pump unit in greenhouse to current heat pump set heat supply capacity and the heat supply performance coefficient that proposes in solving above-mentioned background art reduce along with outdoor temperature's reduction, and the heat supply efficiency easily receives the problem of the influence of environment.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a special solar thermal energy pump unit in greenhouse, includes solar panel, heat transfer case, hot water storage tank, condenser, evaporimeter, compressor, expansion valve and main wet return, both ends all are provided with the connecting axle around solar panel, the support is installed to solar panel's lower extreme, and the support passes through the bearing with the connecting axle and be connected, step motor is installed to the front end of support, and step motor passes through the screw connection with the support, and step motor passes through the coupling joint with the connecting axle, solar panel sets up to the arc structure.

Preferably, the solar panel includes toughened glass, the thermal-arrest panel is installed to toughened glass's lower extreme, the U type is installed to the lower extreme of thermal-arrest panel and is connected the copper pipe, the lower extreme that the copper pipe was connected to the U type is provided with the heat preservation, galvanized steel sheet is installed to the lower extreme of heat preservation, and galvanized steel sheet and heat preservation glue joint are connected.

Preferably, a heat medium outlet is formed in one side of the outside of the solar heat collection plate, a heat medium inlet is formed in the other side of the outside of the solar heat collection plate, and a heat exchange coil is installed inside the heat exchange box.

Preferably, one end of the heat exchange coil is fixedly connected with the heat medium outlet, and the other end of the heat exchange coil is fixedly connected with the heat medium inlet.

Preferably, a greenhouse water feeding port is arranged below the front end of the hot water storage tank.

Preferably, a branch return water pipe is arranged between the main return water pipe and the heat exchange box and between the main return water pipe and the condenser.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a sunshine shines on the thermal-arrest panel that the surface scribbled the absorbed layer through toughened glass, wherein most solar radiation can be absorbed for the absorber of thermal-arrest panel, change into heat energy, and pass to in the working medium of U type connection copper pipe inside, the cold working medium of solar panel entrance, be heated by solar energy in U type connection copper pipe, the temperature risees gradually, hot working medium after the heating flows into the inside of heat transfer coil pipe through the hot medium export, take place the heat exchange with the water inside the heat transfer case, the water is heated the heat flow to the inside of hot water storage tank, the working medium after the heat exchange cooling flows back to the inside of solar panel, simultaneously, the refrigerant inside the evaporimeter draws low-grade heat from the air, become the gaseous state by the evaporation, get into the suction chamber of compressor, after being compressed by compressor adiabatic, pressure risees, the temperature risees, become high temperature high pressure gas, from the gas vent of compressor, in the condenser, give low temperature water heat exchange in the condenser, make high temperature water, self condensation becomes high-pressure liquid, and through the expansion valve, become low temperature low pressure liquid, get back to the evaporimeter evaporation, go back to the compressor, the circulation of going around, the water that is heated in the condenser also gets into the inside of hot water storage tank, through the combination of solar energy collection system and heat pump set, whole heat pump set's efficiency has been improved, improve the utilization ratio to solar energy, avoid taking place the heat supply efficiency because of the phenomenon that receives the environmental impact and heat supply insufficiency, the stability of heat pump set during operation has been improved.

2. The utility model discloses a step motor work can drive solar panel and rotate along the support, realizes solar panel operating angle's regulation, can make to be in best incident angle between sunlight and the thermal-arrest panel according to the automatic regulation and control in position of sunlight, improves the utilization ratio of solar energy to heat supply efficiency has further been improved.

3. The utility model discloses a solar panel sets up to the arc structure, has improved the illumination area and the spotlight intensity of thermal-arrest panel, has improved the collecting efficiency of thermal-arrest panel promptly to the heat supply efficiency has further been improved.

Drawings

Fig. 1 is a schematic structural view of a solar heat pump unit special for a greenhouse of the present invention;

fig. 2 is a front view of a solar collector panel of the present invention;

fig. 3 is a schematic top view of the solar heat collecting plate of the present invention.

In the figure: 1. a solar collector panel; 2. a heat exchange box; 3. a hot water storage tank; 4. a condenser; 5. an evaporator; 6. a compressor; 7. an expansion valve; 8. a support; 9. a stepping motor; 10. a connecting shaft; 11. tempering the glass; 12. a heat collection panel; 13. a U-shaped connecting copper pipe; 14. a heat-insulating layer; 15. a galvanized steel sheet; 16. a thermal medium outlet; 17. a thermal medium inlet; 18. a heat exchange coil; 19. a greenhouse water feeding port; 20. a primary water return pipe; 21. and (4) dividing into water return pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a solar heat pump unit special for a greenhouse comprises a solar heat collecting plate 1, a heat exchange box 2, a hot water storage tank 3, a condenser 4, an evaporator 5, a compressor 6, an expansion valve 7 and a main water return pipe 20, wherein connecting shafts 10 are respectively arranged at the front end and the rear end of the solar heat collecting plate 1, a support 8 is arranged at the lower end of the solar heat collecting plate 1, the support 8 is connected with the connecting shafts 10 through bearings, a stepping motor 9 is arranged at the front end of the support 8, the stepping motor 9 is connected with the support 8 through screws, the stepping motor 9 is connected with the connecting shafts 10 through couplings, the solar heat collecting plate 1 is of an arc-shaped structure, the stepping motor 9 can drive the solar heat collecting plate 1 to rotate along the support 8 to adjust the working angle of the solar heat collecting plate 1, the solar heat collecting plate can be automatically adjusted and controlled according to the direction of sunlight, so that the optimal incident angle is formed between the sunlight and a heat collecting panel 12, the solar heat pump unit has the advantages that the utilization rate of solar energy is improved, the energy efficiency of the whole heat pump unit is improved through the combination of the solar heat collecting system and the heat pump unit, the utilization rate of the solar energy is improved, the phenomenon that heat supply efficiency is insufficient due to environmental influence is avoided, and the stability of the heat pump unit during working is improved.

Further, solar panel 1 includes toughened glass 11, thermal-arrest panel 12 is installed to toughened glass 11's lower extreme, U type connection copper pipe 13 is installed to thermal-arrest panel 12's lower extreme, the lower extreme that copper pipe 13 was connected to the U type is provided with heat preservation 14, galvanized steel sheet 15 is installed to heat preservation 14's lower extreme, and galvanized steel sheet 15 is connected with heat preservation 14 cementing, sunshine sees through solar panel 1's toughened glass 11, shine the surface and scribble on the thermal-arrest panel 12 of absorbed layer, wherein most solar radiation can absorb for the absorber of thermal-arrest panel 12, change into heat energy, and pass to in the inside working medium of U type connection copper pipe 13.

Further, one side of the outside of the solar heat collecting plate 1 is provided with a heat medium outlet 16, the other side of the outside of the solar heat collecting plate 1 is provided with a heat medium inlet 17, the heat exchange box 2 is internally provided with a heat exchange coil 18, the heated hot working medium flows into the heat exchange coil 18 through the heat medium outlet 16, and the working medium cooled by heat exchange flows back to the inside of the solar heat collecting plate 1 through the heat medium inlet 17.

Further, one end of the heat exchange coil 18 is fixedly connected with the heat medium outlet 16, the other end of the heat exchange coil 18 is fixedly connected with the heat medium inlet 17, and the heat exchange coil 18 performs heat exchange inside the heat exchange box 2.

Further, a greenhouse water supply port 19 is arranged below the front end of the hot water storage tank 3, and hot water in the hot water storage tank 3 is supplied to the greenhouse through the greenhouse water supply port 19.

Further, a branch water return pipe 21 is arranged between the main water return pipe 20 and the heat exchange box 2 and between the main water return pipe and the condenser 4, and water cooled after use is concentrated into the main water return pipe 20 and then enters the heat exchange box 2 and the condenser 4 through the branch water return pipe 21.

The working principle is as follows: when the solar heat collecting plate is used, the stepping motor 9 can drive the solar heat collecting plate 1 to rotate along the support 8 to realize the adjustment of the working angle of the solar heat collecting plate 1, the sunlight and the heat collecting panel 12 can be in the best incident angle according to the direction of the sunlight, the utilization rate of the solar energy is improved, the sunlight penetrates through the toughened glass 11 of the solar heat collecting plate 1 and irradiates on the heat collecting panel 12 with the surface coated with an absorption layer, wherein most of solar radiation energy is absorbed by an absorber of the heat collecting panel 12 and is converted into heat energy and is transmitted to a working medium in the U-shaped connecting copper pipe 13, a cold working medium at the inlet of the solar heat collecting plate 1 is heated by the solar energy in the U-shaped connecting copper pipe 13, the temperature is gradually increased, the heated hot working medium flows into the heat exchange coil 18 through the heat medium outlet 16 and is subjected to heat exchange with a water body in the heat exchange box 2, the water body is heated and flows into the hot water storage tank 3, the working medium cooled by heat exchange flows back to the inside of the solar heat collecting plate 1, meanwhile, the refrigerant in the evaporator 5 extracts low-grade heat from the air, is evaporated and changed into a gas state, enters the air suction cavity of the compressor 6, is subjected to heat insulation compression by the compressor 6, is increased in pressure and temperature to form high-temperature and high-pressure gas, is discharged into the condenser 4 from the air outlet of the compressor 6, exchanges heat into low-temperature water in the condenser 4, produces high-temperature water, is condensed into high-pressure liquid, is changed into low-temperature and low-pressure liquid through the expansion valve 7, returns to the evaporator 5 to be evaporated, returns to the compressor 6, and circulates repeatedly, the water body heated in the condenser 4 also enters the inside of the hot water storage tank 3, and improves the energy efficiency of the whole heat pump unit through the combination of the solar heat collecting system and the heat pump unit, the utilization ratio of solar energy is improved, the phenomenon that heat supply efficiency is insufficient due to environmental influence is avoided, the stability of the heat pump set during operation is improved, hot water in the hot water storage tank 3 is sent into the greenhouse through the greenhouse water feeding port 19, the water cooled after use is concentrated into the main water return pipe 20, and then the water enters the heat exchange tank 2 and the condenser 4 through the branch water return pipe 21 respectively.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a special solar thermal energy pump unit in greenhouse, includes solar panel (1), heat transfer case (2), hot water storage tank (3), condenser (4), evaporimeter (5), compressor (6), expansion valve (7) and main wet return (20), its characterized in that: both ends all are provided with connecting axle (10) around solar panel (1), support (8) are installed to the lower extreme of solar panel (1), and support (8) are connected through the bearing with connecting axle (10), step motor (9) are installed to the front end of support (8), and step motor (9) pass through the screw connection with support (8), and step motor (9) pass through the coupling joint with connecting axle (10), solar panel (1) sets up to the arc structure.

2. The solar heat pump unit special for the greenhouse as claimed in claim 1, wherein: solar panel (1) includes toughened glass (11), thermal-arrest panel (12) are installed to the lower extreme of toughened glass (11), U type connection copper pipe (13) are installed to the lower extreme of thermal-arrest panel (12), the lower extreme of U type connection copper pipe (13) is provided with heat preservation (14), galvanized steel sheet (15) are installed to the lower extreme of heat preservation (14), and galvanized steel sheet (15) are connected with heat preservation (14) splice.

3. The solar heat pump unit special for the greenhouse as claimed in claim 1, wherein: one side of the outside of the solar heat collection plate (1) is provided with a heat medium outlet (16), the other side of the outside of the solar heat collection plate (1) is provided with a heat medium inlet (17), and a heat exchange coil (18) is installed inside the heat exchange box (2).

4. The solar heat pump unit special for the greenhouse as claimed in claim 3, wherein: one end of the heat exchange coil (18) is fixedly connected with the heat medium outlet (16), and the other end of the heat exchange coil (18) is fixedly connected with the heat medium inlet (17).

5. The solar heat pump unit special for the greenhouse as claimed in claim 1, wherein: a greenhouse water feeding port (19) is arranged below the front end of the hot water storage tank (3).

6. The solar heat pump unit special for the greenhouse as claimed in claim 1, wherein: and a branch water return pipe (21) is arranged between the main water return pipe (20) and the heat exchange box (2) and between the main water return pipe and the condenser (4).