CN207350955U - A kind of heat accumulating type solar energy air heat collector and air source heat pump combined operation system - Google Patents

Abstract

The utility model discloses a kind of heat accumulating type solar energy air heat collector and air source heat pump combined operation system, including heat accumulating type solar energy air heat collector, phase change heat storage material layer, air passage, wind turbine, evaporator, throttle valve, condenser, four-way valve and compressor, multiple tracks phase change heat storage material layer is equipped with the heat accumulating type solar energy air heat collector, described air passage one end is connected with the outlet of heat accumulating type solar energy air heat collector, the other end is connected with evaporator, wind turbine is equipped with air passage, the four-way valve is equipped with four interfaces, respectively interface A, B, C and D, the A is connected with evaporator refrigerant outlet, B is connected with condenser refrigerant import, C, D respectively with compressor into, outlet connection, the condensator outlet is connected with throttle valve input terminal, the refrigerant inlet of throttle valve output terminal and evaporator connects.The utility model improves heat pump efficiency using solar energy, simple in structure, operating cost is low.

Description

A joint operation system of thermal storage solar air collector and air source heat pump

【Technical field】

The utility model relates to the application field of solar energy, in particular to a combined operation system of a heat storage type solar air heat collector and an air source heat pump.

【Background technique】

The solar air heat collector is a solar heat utilization method that uses solar radiation to heat the air. The heat storage type solar air heat collector adds heat storage function on the basis of the solar air heat collector. Under the circumstances, store part of the heat and release the heat at night or when there is no direct solar radiation; air source heat pumps are currently widely used in household air conditioners, central air conditioners and domestic hot water supply. At present, the use of air source heat pumps is mainly due to the fact that when the temperature is low in winter, its COP also decreases, resulting in insufficient heat supply; in winter operation, the outdoor unit often needs to defrost, which makes defrost frequently, and reverse operation during defrosting, to the indoor side Cooling, resulting in poor heating effect and other problems.

【Content of utility model】

The purpose of this utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a joint operation system of heat storage type solar air collector and air source heat pump, which can provide air with higher temperature for the outdoor unit of the air source heat pump, and improve the performance of the air source heat pump. COP, while reducing the defrosting time of the heat pump, the solar air collector with heat storage function can provide stored heat to make up for the lack of solar energy when there is a lack of solar radiation.

In order to achieve the above purpose, the utility model proposes a combined operation system of a heat storage type solar air collector and an air source heat pump, including a heat storage type solar air heat collector, a phase change heat storage material layer, an air duct, a fan, An evaporator, a throttle valve, a condenser, a four-way valve and a compressor. The heat storage type solar air heat collector is provided with multiple phase change heat storage material layers, and is composed of multiple phase change heat storage material layers. A circulating air channel, one end of the air channel is connected to the outlet of the thermal storage type solar air heat collector, the other end of the air channel is connected to the evaporator, a fan is installed in the air channel, and a fan is installed on the four-way valve. The four ports are respectively port A, port B, port C and port D, the port A is connected to the refrigerant outlet of the evaporator, the port B is connected to the refrigerant inlet of the condenser, and the port C is connected to the compressor The inlet of the compressor is connected, the interface D is connected with the outlet of the compressor, the outlet of the condenser is connected with the input end of the throttle valve, and the output end of the throttle valve is connected with the refrigerant inlet of the evaporator.

As a preference, the thermal storage type solar air heat collector is composed of a cover plate and a shell, the cover plate is a glass cover plate, and the shell is a thermal insulation shell.

As a preference, the heat storage type solar air heat collector is provided with a solar air heat collector inlet and a solar air heat collector outlet, and the solar air heat collector inlet and the solar air heat collector outlet pass through the air channel connected.

Preferably, the phase change thermal storage material layer is evenly distributed inside the thermal storage type solar air heat collector.

Preferably, the condenser is an air source heat pump condenser, and heat medium such as hot water or hot air is passed through the heat medium pipeline on the condenser.

Beneficial effects of the utility model: Compared with the prior art, the utility model is a heat storage type solar air collector and air source heat pump joint operation system, which can make full use of solar energy to improve the efficiency of the heat pump, and heat the air through solar energy collection. The final air is supplied to the evaporator of the outdoor unit of the air source heat pump, which can make full use of solar energy to provide air with a higher temperature for the outdoor unit of the air source heat pump, improve the COP of the air source heat pump, and reduce the defrosting time of the air source heat pump. At the same time, the solar air collector with heat storage function can make up for the shortcomings of unstable solar radiation, and can provide stored heat when there is a lack of solar radiation. It has a simple structure, low cost, and low operating costs.

The features and advantages of the utility model will be described in detail through embodiments in conjunction with the accompanying drawings.

【Description of drawings】

Figure 1 is a schematic structural diagram of a combined operation system of a heat storage solar air collector and an air source heat pump.

In the figure: 1-inlet of solar air heat collector; 2-heat storage type solar air heat collector; 3-phase change thermal storage material layer; 4-air channel; 5-air channel; 6-fan; 7-evaporator ; 8-throttle valve; 9-condenser; 10-four-way valve; 11-compressor.

【Detailed ways】

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail through the accompanying drawings and embodiments below. However, it should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present invention.

As shown in Figure 1, the utility model provides a combined operation system of a heat storage type solar air heat collector and an air source heat pump, including a heat storage type solar air heat collector 2, a phase change heat storage material layer 3, and an air duct 5 , fan 6, evaporator 7, throttling valve 8, condenser 9, four-way valve 10 and compressor 11, described thermal storage type solar air heat collector 2 is provided with multiple phase change heat storage material layers 3, And the phase-change thermal storage material layer 3 constitutes a multiple-cycle air channel 4, one end of the air channel 5 is connected to the outlet of the heat storage type solar air heat collector 2, and the other end of the air channel 5 is connected to the evaporator 7, The air duct 5 is provided with a fan 6, and the four-way valve 10 is provided with four interfaces, which are respectively interface A, interface B, interface C and interface D, and the refrigerant between the interface A and the evaporator 7 The port B is connected to the refrigerant inlet of the condenser 9, the port C is connected to the inlet of the compressor 11, the port D is connected to the outlet of the compressor 11, the outlet of the condenser 9 is connected to the throttle valve 8 The input end is connected, and the output end of the throttle valve 8 is connected with the refrigerant inlet of the evaporator 7 .

The working process of the utility model:

The ambient air enters the heat storage type solar air heat collector 2 from the inlet 1 of the solar air heat collector under the action of the fan 6. After being heated in the heat collector 2, part of the heat is stored in the phase change storage through the air channel 4. In the thermal material layer 3, the air leaves the thermal storage type solar air heat collector 2, passes through the air duct 5 and the fan 6 in the air duct, enters the evaporator 7 of the outdoor unit of the air source heat pump, transfers the heat to the evaporator 7, and then flows out to the environment in the air.

When there is no solar radiation, the ambient air enters the heat collector 2 from the inlet 1 of the solar air heat collector under the action of the fan 6, and the air leaves the heat storage type solar air heat collector after passing through the phase change heat storage material layer 3 to absorb its heat The device 2 enters the evaporator 7 of the outdoor unit of the air source heat pump through the air duct 5 and the fan 6 in the air duct, and transfers heat to the evaporator 7 and then flows out into the ambient air.

The refrigerant of the air source heat pump enters the condenser 9 from the compressor 11 through the four-way valve 10, releases heat to the heat medium 12, and then enters the evaporator 7 after being cooled by the throttle valve 8, and is absorbed by the evaporator 7. After the heat of the hot air (or ambient air) provided by the solar air heat collector 2 returns to the compressor 11 through the four-way valve 10, the cycle of the air source heat pump is completed.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modification, equivalent replacement or improvement made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. A heat storage type solar air heat collector and an air source heat pump combined operation system, is characterized in that: comprise heat storage type solar air heat collector (2), phase change heat storage material layer (3), air duct ( 5), blower fan (6), evaporator (7), throttle valve (8), condenser (9), four-way valve (10) and compressor (11), described thermal storage type solar air heat collector (2) There are multiple layers of phase-change heat storage material (3) inside, and the air passage (4) for multiple cycles is formed by the phase-change heat storage material layer (3), and one end of the air passage (5) is connected to the heat storage The outlet of the thermal solar air heat collector (2) is connected, the other end of the air duct (5) is connected with the evaporator (7), the air duct (5) is provided with a fan (6), and the four-way valve (10) is provided with four interfaces, respectively interface A, interface B, interface C and interface D, the interface A is connected with the refrigerant outlet of the evaporator (7), and the interface B is connected with the condenser (9) The refrigerant inlet is connected, port C is connected to the compressor (11) inlet, port D is connected to the compressor (11) outlet, and the refrigerant outlet of the condenser (9) is connected to the input end of the throttle valve (8) , the output end of the throttle valve (8) is connected with the refrigerant inlet of the evaporator (7). 2. A combined operation system of heat storage type solar air heat collector and air source heat pump as claimed in claim 1, characterized in that: said heat storage type solar air heat collector (2) consists of a cover plate and a shell Composition, the cover plate is a glass cover plate, and the shell is a thermal insulation shell. 3. A combined operation system of a heat storage type solar air heat collector and an air source heat pump as claimed in claim 1, characterized in that: said heat storage type solar air heat collector (2) is provided with a solar air The inlet (1) of the heat collector and the outlet of the solar air heat collector are communicated through the air channel (4). 4. A heat storage type solar air heat collector and air source heat pump joint operation system as claimed in claim 1, characterized in that: the phase change heat storage material layer (3) is evenly distributed on the heat storage type solar air heat collector Inside the collector (2). 5. A heat storage type solar air heat collector and air source heat pump combined operation system according to claim 1, characterized in that: said condenser (9) is an air source heat pump condenser.