WO2016116028A1

WO2016116028A1 - All-weather solar energy heat pump air-conditioning system

Info

Publication number: WO2016116028A1
Application number: PCT/CN2016/071338
Authority: WO
Inventors: 黄国和; 成剑林
Original assignee: 黄国和
Priority date: 2015-01-23
Filing date: 2016-01-19
Publication date: 2016-07-28
Also published as: CN104596008B; CN104596008A

Abstract

Disclosed is an all-weather solar energy air-conditioning system, comprising a solar energy collector (13), a heat pump compressor (10) and a user heat exchanger (11). The solar energy collector (13) consists of a main body (1), a fan (3), a coil heat exchanger (4), a spray system and a solar panel (9), wherein an opening (2) is provided on an upper part of the main body (1), the fan (3) is mounted at the opening (2) of the upper part, an opening (5) is provided on a side face of the main body (1), and a baffle is mounted at the opening (5) of the side face; the coil heat exchanger (4) is mounted in the main body (1) and is connected to the heat pump compressor (10) via a pipeline; the solar panel (9) is mounted outside a side face of the main body (1) and connected to the heat pump compressor (10) via a pipeline; and the heat pump compressor (10) is connected to the coil heat exchanger (4), the solar panel (9) and the user heat exchanger (11) via pipelines.

Description

All-weather solar heat pump air conditioning system

Technical field

The invention relates to the field of energy saving and energy utilization technologies, in particular to an air conditioning system applied to an air conditioning heating industry.

Background technique

In southern China, winter temperatures are low, humidity is high, sunlight exposure time is short, and people's body temperature is low. In order to heat the building, it is often used to burn fossil energy sources such as coal, oil, natural gas, etc., to provide indoor high temperature air conditioning water through the boiler to increase the indoor temperature. At the same time as the heating efficiency is low, various environmental pollution problems are brought about. With the development of heat pump technology, various types of heat pump heating systems using different heat sources have been generally developed. Such as ground source heat pump, water source heat pump, air source heat pump and so on. The air source heat pump has been widely promoted due to its low requirements on the installation environment and flexible use. However, due to the severe low temperature and high humidity conditions in southern China, air source heat pumps are prone to frosting and defrosting, which reduces their working efficiency and affects the user's heating experience. At present, the direct expansion type solar heat pump water heaters appearing in China have not been widely used due to unstable working conditions. In particular, its characteristic of drastically reduced efficiency in the absence of direct sunlight or direct sunlight affects its promotion.

Solar energy is not only the direct light of sunlight, it heats the earth's atmosphere, and changes the temperature and humidity of the surface air, especially the water vapor content in the air is greatly affected. When the moisture content in the air increases, it means that more water has entered the air, and the latent heat of vaporization absorbed by this part of the water from liquid to gas is from solar energy. If this part of the solar energy can be utilized, Will produce huge economic and social benefits. The use of this part of solar energy will not be limited by time and space, and has great room for development.

Summary of the invention

(1) Technical problems to be solved

The object of the present invention is to provide an all-weather solar heat pump air conditioning system that utilizes solar energy to realize day and night work of the air conditioning system.

(2) Technical plan

To solve the above technical problem, the present invention provides an all-weather solar heat pump air conditioning system, including a solar collector, a heat pump compressor, and a user heat exchanger; the solar collector includes a body, a fan, a coil heat exchanger, The upper part of the body is located at the upper part of the body, the fan is installed at the upper part of the body, the side of the body is provided with a side opening of the body, and the deflector is installed at the side opening of the body; the coil heat exchanger is mounted on the body Internally, connected to the heat pump compressor through a pipeline; the solar panel is installed outside the side of the body, and is connected to the heat pump compressor through a pipeline; the heat pump compressor is exchanged with the coil heat exchanger, the solar panel, and the user through the pipeline The heat exchanger and the expansion valve are connected.

Preferably, the solar collector further comprises a spray system, the spray system comprises a spray water pump installed in a lower sump of the body and a nozzle installed in a side opening of the body, and the spray water pump and the nozzle pass Pipes are connected.

Preferably, the heat pump compressor is connected to the expansion valve with a heat exchange section, and the heat exchange section is located in the user heat exchanger.

Preferably, the heat pump compressor is connected to the coil heat exchanger, and a solenoid valve is arranged on the pipeline connected to the coil heat exchanger, and the heat pump compressor is connected with the solar panel to install a solenoid valve.

Preferably, the nozzle direction is sprayed into the body, and the spray is sprayed in a downstream flow.

Preferably, the solution in the lower tank of the body is a calcium chloride type salt or an alcohol solution to ensure that the freezing point of the spray solution is below 0 °C.

Preferably, the user heat exchanger is connected to the indoor air conditioning water system of the user through a pipeline.

Preferably, the body side opening is provided with an air humidity sensor and a temperature sensor.

Preferably, an illumination sensor is disposed at the upper opening of the body.

(3) Beneficial effects

The all-weather solar heat pump air conditioning system provided by the invention has the advantage of being sunny during the daytime Directly heating the refrigerant in the solar panel with solar energy, the refrigerant heats up quickly, the refrigerant evaporating temperature is high, and the compressor works efficiently; on cloudy days and nights, the flow of the refrigerant is switched by the opening and closing of the solenoid valve, and the refrigerant is The coiled heat exchanger absorbs solar energy from the air to achieve all-weather work.

In the process of using the coil heat exchanger to absorb the solar energy in the air, the salt-type solution is continuously sprayed to ensure that the coil heat exchanger does not frost, and there is no compressor defrosting process to realize the compressor. Efficient and stable operation.

The air humidity sensor is used to sense the humidity of the outside air, and when the humidity is lower than a certain value, the spray pump is actively turned on to humidify the air, thereby further improving the heat exchange efficiency of the coil heat exchanger.

DRAWINGS

The present invention will be further described in detail below with reference to the accompanying drawings:

Figure 1 is a schematic structural view of the present invention;

In the figure, the body 1, the upper opening of the body 2, the fan 3, the coil heat exchanger 4, the body side opening 5, the nozzle 6, the lower body sump 7, the spray water pump 8, the solar panel 9, the heat pump compressor 10, User heat exchanger 11, expansion valve 12, solar collector 13, and user indoor air conditioning water system 14.

detailed description

As shown in FIG. 1, an all-weather solar heat pump air conditioning system of the present invention includes a solar collector 13, a heat pump compressor 10, and a user heat exchanger 11; the solar collector 13 includes a body 1, a fan 3, and a coil Heat exchanger 4, solar panel 9; the upper body opening 2 is located at the upper part of the body 1, the fan is installed at the upper opening 2 of the body, the body side opening 5 is provided on the side of the body, and the deflector is mounted at the side opening 5 of the body; The coiled heat exchanger 4 is installed inside the body and connected to the heat pump compressor 10 through a pipe; the solar panel 9 is installed outside the side of the body, and is connected to the heat pump compressor 10 through a pipe; the heat pump is compressed The machine 10 is connected to the coil heat exchanger 4, the solar panel 9, the user heat exchanger 11, and the expansion valve 12 through pipes.

Further, the solar collector 13 further includes a shower system, the spray The shower system includes a spray water pump 8 installed in the lower sump 7 of the body and a nozzle 6 mounted in the side opening 5 of the body, and the spray water pump 8 and the nozzle 6 are connected by a pipe.

Wherein, the pipeline connecting the heat pump compressor and the expansion valve has a heat exchange section, and the heat exchange section is located in the heat exchanger of the user.

The heat pump compressor 10 and the coil heat exchanger 4 are connected to a pipe (including a refrigerant inlet pipe and a refrigerant outlet pipe), and a pipe connecting the electromagnetic pump A and the heat pump compressor 10 to the solar panel 9 (including refrigeration) A solenoid valve B is mounted on the agent inlet pipe and the refrigerant outlet pipe.

The nozzle 6 is sprayed into the body 1 in the direction of the spray, and the spray is sprayed downstream.

The solution in the lower body sump 7 of the body is a calcium chloride type salt or an alcohol solution to ensure that the freezing point of the spray solution is below 0 °C.

The user heat exchanger 11 is connected to the indoor air conditioning water system 14 of the user through a pipe.

An air humidity sensor and a temperature sensor are disposed at the side opening 5 of the body.

An illumination sensor is disposed at the upper body opening 2 of the body.

The working process of an all-weather solar heat pump air conditioning system of the present invention is as follows:

1. The light sensor senses solar light, turns on the solenoid valve B, and closes the solenoid valve A. Turn on the heat pump compressor, turn off the fan, and the refrigerant circulates between the heat pump compressor, the user heat exchanger, the expansion valve, the solenoid valve B, and the solar panel. In the solar panel, the refrigerant absorbs heat into gas and then is compressed by the heat pump. The machine is compressed, then enters the user heat exchanger to condense into a liquid, and transfers the heat to the user's air conditioning water system. After the expansion valve expands, it enters the solar panel again for the next cycle, thereby continuously absorbing the heat in the solar light and lifting it through the heat pump. Passed to the user's indoor air conditioning water system;

2. The light sensor does not sense solar light, open solenoid valve A, and close solenoid valve B. Turn on the heat pump compressor and turn on the fan. The fan draws air from the side opening of the body, flows through the coil heat exchanger, and flows out from the upper opening of the body. Due to the high humidity of the air, it continuously flows through the coil heat exchanger. In the case of condensation, the latent heat is released; the refrigerant circulates between the heat pump compressor, the user heat exchanger, the expansion valve, the solenoid valve A, and the coil heat exchanger, and the refrigerant absorption flow in the coil heat exchanger Heat in the air outside the coiled heat exchanger The quantity becomes gas, and then compressed by the compressor and then enters the user heat exchanger to be condensed into a liquid, which transfers the heat to the user's air conditioning water system. After the expansion valve expands, it enters the coil heat exchanger again for the next cycle, thereby continuously The heat absorbed in the air is transferred to the indoor air conditioning water system of the user after being lifted by the heat pump;

3. The light sensor does not sense the solar light. The humidity sensor senses that the air humidity is low, and the water vapor in the air cannot be condensed. At this time, the spray water pump is turned on, and the air entering the side opening of the body is actively humidified to increase the humidity of the air. Therefore, the heat exchange efficiency of the coil heat exchanger is improved; when the humidity sensor senses that the air humidity is high, the spray water pump is actively stopped;

4. The illumination sensor does not sense solar light. When the temperature sensor senses that the air temperature is lower than 4 °C, the spray pump is turned on, and the coil heat exchanger is actively sprayed to reduce the freezing temperature of the surface of the coil heat exchanger. Thereby the compressor does not stop.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can change without thinking of creative work within the technical scope of the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the invention as defined by the appended claims.

Industrial applicability

The all-weather solar heat pump air conditioning system provided by the invention uses the direct sunlight to heat the refrigerant in the solar panel during the daytime when there is sunlight in the daytime, the refrigerant heats up quickly, the refrigerant evaporation temperature is high, and the compressor work efficiency is high; on cloudy days and nights, By switching the flow of the refrigerant through the opening and closing of the solenoid valve, the refrigerant absorbs the solar energy in the air in the coil heat exchanger to achieve all-weather work; in the process of drawing the solar energy in the air by using the coil heat exchanger, By spraying the salt solution, the coil heat exchanger can be prevented from frosting, there is no process of compressor defrosting, and the compressor can be operated efficiently and stably; the air humidity sensor is used to sense the outside air humidity, and the humidity is lower than At a certain value, the spray pump is actively turned on to humidify the air to further improve the heat exchange efficiency of the coil heat exchanger.

Claims

An all-weather solar air conditioning system, characterized in that it comprises a solar collector (13), a heat pump compressor (10), a user heat exchanger (11); the solar collector (13) comprises a body (1), Fan (3), coil heat exchanger (4), solar panel (9); the upper part opening (2) of the body is located at the upper part of the body (1), and the fan is installed at the upper opening (2) of the body, the side of the body a body side opening (5) is provided, and a baffle is installed at the side opening (5) of the body; the coil heat exchanger (4) is installed inside the body and connected to the heat pump compressor (10) through a pipe; The solar panel (9) is mounted outside the side of the body and connected to the heat pump compressor (10) through a pipe; the heat pump compressor (10) passes through a pipe and a coil heat exchanger (4), and a solar panel (9) ), the user heat exchanger (11), the expansion valve (12) is connected.
The all-weather solar air conditioning system according to claim 1, wherein said solar collector (13) further comprises a sprinkler system, said sprinkler system comprising a spray mounted in a lower sump (7) of the body The shower water pump (8) and the nozzle (6) installed in the side opening (5) of the body are composed, and the spray water pump (8) and the nozzle (6) are connected through the pipeline.
The all-weather solar air conditioning system according to claim 2, wherein the heat pump compressor (10) and the expansion valve (12) are connected to a pipe having a heat exchange section, and the heat exchange section is located in the user heat exchanger (11). Inside.
An all-weather solar air conditioning system according to claim 3, wherein the heat pump compressor (10) is connected to the coil heat exchanger (4) with a solenoid valve (A) and a heat pump compressor (10). A solenoid valve (B) is attached to the pipe connected to the solar panel (9).
The all-weather solar air conditioning system according to claim 3, characterized in that: the nozzle (6) is sprayed into the body (1), and the spray is sprayed downstream.
An all-weather solar air conditioning system according to claim 3, wherein the solution in the lower tank (7) of the body is a calcium chloride type salt or an alcohol solution to ensure a spray solution. The freezing point is below 0 °C.
An all-weather solar air conditioning system according to claim 3, wherein: The user heat exchanger (11) is connected to the indoor air conditioning water system (14) of the user through a pipeline.
The all-weather solar air conditioning system according to claim 3, characterized in that: the body side opening (5) is provided with an air humidity sensor and a temperature sensor.
An all-weather solar air conditioning system according to claim 3, characterized in that the body upper opening (2) is provided with an illumination sensor.