CN203687447U - Solar energy and air source heat pump integrated household hot water air conditioning system - Google Patents

Abstract

The utility model discloses a domestic hot water air-conditioning system integrating solar energy and an air source heat pump, comprising a photovoltaic photothermal integrated board, a hot water preheating water tank, a heat pump water tank, an air source heat pump host, and a refrigerant-water heat exchanger And the automatic control device, the photovoltaic photothermal integrated board and the hot water preheating water tank, the hot water preheating water tank and the heat pump water tank, and the refrigerant-water heat exchanger and the heat pump water tank are respectively connected through pipelines, and the air source heat pump host is respectively connected through refrigerant pipes. It is connected with the refrigerant-water heat exchanger and the indoor unit of the air conditioner; the first temperature sensor is installed on the pipeline connected between the photovoltaic photothermal integrated board and the hot water preheating tank, and the second temperature sensor is installed on the hot water preheating tank. The sensors, the first temperature sensor and the second temperature sensor are respectively connected with the automatic control device. The utility model combines the current advanced photovoltaic photothermal system and air source heat pump technology to form an integrated energy-saving and environmental protection equipment system driven by solar energy and electric energy coupling.

Description

Household hot water air conditioning system integrated with solar energy and air source heat pump

technical field

The utility model relates to a hot water air-conditioning system, in particular to a domestic hot water air-conditioning system integrating solar energy and an air source heat pump, and belongs to the energy-saving technical fields of solar energy technology and air source heat pump.

Background technique

In recent years, with the development of the national economy and the improvement of people's living standards, the rising energy consumption of buildings in my country has brought greater pressure on power supply. In order to reduce building energy consumption, the development and utilization of solar energy has been paid more and more attention. Solar water heaters have the advantages of energy saving and environmental protection, and have been applied in areas with abundant solar energy resources. However, conventional solar water heaters are easily affected by the climate and cannot operate around the clock. Air source heat pumps, as a high-efficiency energy-saving system, are increasingly popular. The organic combination of heat pump technology and solar water heating system can make up for the deficiencies of the latter and realize efficient and round-the-clock operation.

The air source heat pump system is easier to achieve standardized mass production than other renewable energy heat pump equipment. The process development has been relatively well established, the product specifications are complete, and the brand is various; and the initial investment of the equipment is relatively low compared with other heat source heat pumps such as water source and ground source. Installation and maintenance Work is easier and easier to use. However, the temperature of the low-temperature heat source of the air source heat pump changes with the outdoor climate. When the outdoor temperature drops, the heat supply and efficiency of the heat pump will also drop, especially when the outdoor humidity drops to about 0°C in winter. Frost problem, the heat exchange effect deteriorates, and the unit may even be damaged in severe cases. Therefore, the use of air source heat pumps to produce hot water is suitable for areas where winter is not too cold, which also greatly limits its scope of application.

At present, for independent household users (mainly represented by villa users), in order to meet the requirements of comfort and convenience, air conditioning, heating and hot water design are often required, so that a set of air conditioning system, a heating system and hot water system. Although there are many users who use independent solar water heating systems, since solar water heating systems operate independently from other systems, the equipment is generally scattered, takes up a lot of space, and has complex system maintenance, large resource consumption and initial investment. A series of problems such as high cost. It has fallen behind the development needs of the times.

The variable refrigerant flow multi-split air-conditioning system (referred to as the multi-split system) is a direct expansion type that adapts to the load change of each air-conditioning area by changing the refrigerant flow rate with multiple indoor units matched with an outdoor air source cooling or heat pump unit. Air Conditioning System. The system has the characteristics of energy saving, saving building space, suitable for centralized management, easy construction and installation, convenient and flexible combination, and can meet the requirements of different room working conditions, etc., especially in the use of independent home users, more and more popular favored by designers.

For home users who use multi-connected systems, the loads of all rooms will eventually be discharged to the external environment through the outdoors, which will not only save energy but also affect the surrounding environment. Therefore, the integration of the air source heat pump and the solar water heating system can not only manage the hot water and the air conditioning system in a unified manner, but also enable the two to complement each other, and at the same time recover a certain amount of condensation heat from the air conditioner and provide it to the hot water system to meet the needs of energy conservation and environmental protection. Requirements, for independent home users, have great prospects.

Utility model content

The purpose of this utility model is to solve the above-mentioned defects of the prior art, and provide a household type hot water air conditioning system with simple structure, convenient operation, high efficiency and convenient integration of solar energy and air source heat pump.

The purpose of this utility model can be achieved by taking the following technical solutions:

The domestic hot water air conditioning system integrating solar energy and air source heat pump is characterized in that it includes photovoltaic photothermal integrated board, hot water preheating water tank, heat pump water tank, air source heat pump host, refrigerant-water heat exchanger and automatic control device , the photovoltaic photothermal integrated board is connected to the hot water preheating tank through pipelines, the hot water preheating tank is connected to the heat pump water tank through pipelines, and the air source heat pump host is connected to the refrigerant- The water heat exchanger is connected to the indoor unit of the air conditioner, and the refrigerant-water heat exchanger is connected to the heat pump water tank through a pipe; A temperature sensor, the hot water preheating tank is provided with a second temperature sensor, and the first temperature sensor and the second temperature sensor are respectively connected with the automatic control device.

As a preferred solution, the air source heat pump host is a double-effect heat pump host that can cool and heat at the same time and can realize frequency conversion operation.

As a preferred solution, an auxiliary electric heating tube is provided inside the hot water preheating tank, and the auxiliary electric heating tube is connected to the automatic control device.

As a preferred solution, there are two pipelines connected between the photovoltaic photothermal integrated panel and the hot water preheating tank, namely the first pipeline and the second pipeline, and the hot water preheating tank is provided with two A water inlet and two water outlets; one end of the first pipeline is connected to the water outlet of the photovoltaic photothermal integrated panel, and the other end is connected to a water inlet of the hot water preheating tank; one end of the second pipeline is connected to the photovoltaic The water inlet of the photothermal integrated board is connected, and the other end is connected to a water outlet of the hot water preheating tank; the other water inlet of the hot water preheating tank is connected to the water inlet pipe, and the first temperature sensor is set on the first On the pipeline, a circulating pump is arranged on the second pipeline.

As a preferred solution, the pipeline connected between the hot water preheating tank and the heat pump water tank is a third pipeline, and the heat pump water tank is provided with two water inlets and two water outlets; one end of the third pipeline is connected to the The other water outlet of the hot water preheating tank is connected, and the other end is connected with a water inlet of the heat pump water tank; one water outlet of the heat pump water tank is connected with a water outlet pipe, and a fourth pipe is connected between the water inlet pipe and the water outlet pipe, The fourth pipeline is provided with a mixing pump.

As a preferred solution, there are two pipelines connected between the refrigerant-water heat exchanger and the heat pump water tank, namely the fifth pipeline and the sixth pipeline; one end of the fifth pipeline is connected to the other outlet of the heat pump water tank. The other end is connected to the water inlet of the refrigerant-water heat exchanger; one end of the sixth pipe is connected to the other water inlet of the heat pump water tank, and the other end is connected to the water outlet of the refrigerant-water heat exchanger.

As a preferred solution, the medium used in the first pipeline and the second pipeline is ethylene glycol solution.

As a preferred solution, a constant pressure tank is also provided on the second pipeline.

Compared with the prior art, the utility model has the following beneficial effects:

1. The household hot water air-conditioning system of this utility model combines the current advanced photovoltaic photothermal system with air source heat pump technology, and preferentially selects renewable energy and low-grade energy to form an integrated system driven by solar energy and electric energy coupling. The energy saving and environmental protection equipment system can realize safe and reliable operation in low temperature environment, and the operating cost is much lower than that of conventional hot water, air conditioning, and heating systems. Its structure is simple, easy to operate, and easy to maintain.

2. The household hot water air conditioning system of the utility model can provide users with heating in winter, cooling in summer and cheap hot water service throughout the year. Especially in summer, the hot water system recovers the condensation heat of the air conditioning system and can also improve the system The energy efficiency ratio realizes that the integrated system of solar energy and air source heat pump can meet the various needs of users such as heating, air conditioning, and hot water, and is suitable for users in cold, hot summer and cold winter, and hot summer and warm winter regions.

3. Considering the reliability, high efficiency, safety, maintainability, initial investment and operating costs of the equipment, the household hot water air conditioning system of the present utility model can realize the use of renewable energy to meet the needs of users for heating and hot water , the energy used for heating and hot water comes from solar energy and low-grade air energy, which are renewable energy sources, and can be maintained at a high level throughout the year in terms of energy utilization, which meets the current energy conservation and emission reduction requirements.

Description of drawings

Fig. 1 is a schematic structural diagram of a domestic hot water air conditioning system according to Embodiment 1 of the present utility model.

Among them, 1-photovoltaic photothermal integrated board, 2-hot water preheating water tank, 3-heat pump water tank, 4-air source heat pump host, 5-refrigerant-water heat exchanger, 6-automatic control device, 7-auxiliary electric heating Pipe, 8-first pipeline, 9-second pipeline, 10-circulation pump, 11-third pipeline, 12-fourth pipeline, 13-mixing water pump, 14-fifth pipeline, 15-sixth pipeline, 16- Constant pressure tank.

Detailed ways

Example 1:

As shown in Figure 1, the household hot water air-conditioning system of this embodiment includes a photovoltaic photothermal integrated board 1, a hot water preheating water tank 2, a heat pump water tank 3, an air source heat pump host 4, and a refrigerant-water heat exchanger 5 And the automatic control device 6, the inside of the hot water preheating water tank 2 is provided with an auxiliary electric heating tube 7, and the auxiliary electric heating tube 7 is connected with the automatic control device 6, wherein:

The hot water preheating tank 2 is provided with two water inlets and two water outlets, a first pipeline 8 and a second pipeline 9 are connected between the photovoltaic photothermal integrated panel 1 and the hot water preheating tank 2, One end of the first pipeline 8 is connected to the water outlet of the photovoltaic-thermal integrated panel 1, and the other end is connected to a water inlet of the hot water preheating tank 2; one end of the second pipeline 9 is connected to the photovoltaic-thermal integrated The water inlet of plate 1 is connected, and the other end is connected with a water outlet of hot water preheating tank 2;

The first pipeline 8 is provided with a first temperature sensor T1, and the hot water preheating water tank 2 is provided with a second temperature sensor T2, and the first temperature sensor T1 and the second temperature sensor T2 are connected with the automatic control device 6 respectively. connected; the second pipeline 9 is provided with a circulation pump 10 and a constant pressure tank 16, and the constant pressure tank 16 can buffer the pressure fluctuation when solar energy produces hot water, and eliminate the water hammer to stabilize the pressure and unload the load The medium used in the first pipeline 8 and the second pipeline 9 is ethylene glycol solution, which has an antifreeze effect and is suitable for use as a heat medium.

The heat pump water tank 3 is provided with two water inlets and two water outlets, a third pipe 11 is connected between the hot water preheating water tank 2 and the heat pump water tank 3, and one end of the third pipe 11 is connected to the hot water preheating water tank 3. The other water outlet of the hot water tank 2 is connected, and the other end is connected with a water inlet of the heat pump water tank 3; A water pipe, a fourth pipeline 12 is connected between the water inlet pipe and the water outlet pipe, and the fourth pipeline 12 is provided with a water mixing pump 13;

A fifth pipe 14 and a sixth pipe 15 are connected between the refrigerant-water heat exchanger 5 and the heat pump water tank 3, one end of the fifth pipe 14 is connected to the other water outlet of the heat pump water tank 3, and the other end is connected to the refrigerant - the water inlet of the water heat exchanger 5 is connected; one end of the sixth pipe 15 is connected to the other water inlet of the heat pump water tank 3, and the other end is connected to the water outlet of the refrigerant-water heat exchanger 5;

The automatic control device 6 adopts the SP25 controller, when the temperature measured by the first temperature sensor T1 (i.e. the temperature of the first pipeline 8) is higher than the temperature measured by the second temperature sensor T2 (i.e. the water temperature of the hot water preheating tank 2) at 7. °C, the circulating pump 10 starts, and the photovoltaic-thermal integrated board 1, the first pipeline 8, the hot water preheating water tank 2 and the second pipeline 9 form a loop; when the temperature measured by the first temperature sensor T1 is higher than the temperature measured by the second temperature sensor T2 The measured temperature is below 4. °C, the circulating pump 10 stops working; when the temperature measured by the second temperature sensor T2 is higher than 60 °C. (2 o'clock, stop the temperature difference cycle to prevent the water temperature from being too high; when the temperature of the heat pump water tank 3 is lower than 55°C, and the water temperature of the hot water preheating water tank 2 is higher than 55°C, the mixed water pump 13 starts, and when the heat pump water tank 3 and the hot water preheating The water temperature of the hot water tank 2 is all lower than 55° C., and the auxiliary electric heating tube 7 starts automatically to heat the hot water preheating water tank 2; the aforementioned temperature values can be adjusted according to actual needs.

The air source heat pump main unit 4 is connected to the refrigerant-water heat exchanger 5 and the air conditioner indoor unit respectively through refrigerant pipes, and the air source heat pump main unit 4 is a double-effect heat pump main unit that can simultaneously cool and heat and can realize frequency conversion operation; In summer working conditions, the air source heat pump host 4 meets the needs of indoor air conditioners, and at the same time recovers the indoor condensation heat to heat the water in the heat pump water tank 3; in winter working conditions, the air source heat pump host 4 mainly meets the indoor heating needs, and connects the refrigerant- The refrigerant pipe of the water heat exchanger 5 is closed. At this time, the hot water in the heat pump water tank 3 comes from the hot water preheating water tank 2, and the hot water is produced by the photovoltaic photothermal integrated board 1. The heat pump water tank 3 supplies hot water to the user through the outlet pipe. It can be used as domestic hot water and floor heating. In bad weather (such as the above-mentioned situation where the water temperature of the heat pump water tank 3 and the hot water preheating water tank 2 are both lower than 55°C), consider starting the auxiliary electric heating tube 7 The hot water preheating water tank 2 is heated to meet the requirements of high efficiency and energy saving of the whole system, and the purpose of safe and reliable operation in the environment of low temperature and poor sunshine conditions.

The household hot water air conditioning system of this embodiment combines the current advanced photovoltaic photothermal system with air source heat pump technology to form an integrated energy-saving and environmental protection system driven by coupling of solar energy and electric energy. In the process of producing hot water by solar energy, Ethylene glycol can be used as the heat medium, and the automatic control device is designed to operate fully automatically (it can also be operated by manual control).

The above is only a preferred embodiment of the utility model patent, but the scope of protection of the utility model patent is not limited thereto, any skilled person familiar with the technical field within the disclosed scope of the utility model patent, according to The technical scheme of the utility model patent and the equivalent replacement or change of the utility model concept all belong to the protection scope of the utility model patent.

Claims (8)

1. the integrated domestic type hot water air-conditioning system of solar energy and air source heat pump, it is characterized in that: comprise photovoltaic and photothermal integral plate (1), hot water preheating water tank (2), heat pump water box (3), air source heat pump main frame (4), refrigerant-water heat exchanger (5) and self-con-tained unit (6), between described photovoltaic and photothermal integral plate (1) and hot water preheating water tank (2), be connected by pipeline, between described hot water preheating water tank (2) and heat pump water box (3), be connected by pipeline, described air source heat pump main frame (4) is connected with refrigerant-water heat exchanger (5) and indoor apparatus of air conditioner respectively by refrigerant pipe, between described refrigerant-water heat exchanger (5) and heat pump water box (3), be connected by pipeline, the pipeline being connected between described photovoltaic and photothermal integral plate (1) and hot water preheating water tank (2) is provided with the first temperature sensor, described hot water preheating water tank (2) is provided with the second temperature sensor, and described the first temperature sensor is connected with self-con-tained unit (6) respectively with the second temperature sensor.

2. the integrated domestic type hot water air-conditioning system of solar energy according to claim 1 and air source heat pump, is characterized in that: described air source heat pump main frame (4) is for can freeze, heat and can realize the double-effect heat pump main frame of converting operation simultaneously.

3. the integrated domestic type hot water air-conditioning system of solar energy according to claim 1 and air source heat pump, it is characterized in that: described hot water preheating water tank (2) inside is provided with auxiliary electrical heater pipe (7), described auxiliary electrical heater pipe (7) is connected with self-con-tained unit (6).

4. the integrated domestic type hot water air-conditioning system of solar energy according to claim 1 and air source heat pump, it is characterized in that: the pipeline being connected between described photovoltaic and photothermal integral plate (1) and hot water preheating water tank (2) has two, be respectively the first pipeline (8) and second pipe (9), described hot water preheating water tank (2) is provided with two water inlets and two delivery ports; One end of described the first pipeline (8) is connected with the delivery port of photovoltaic and photothermal integral plate (1), and the other end is connected with hot water preheating water tank's (2) a water inlet; One end of described second pipe (9) is connected with the water inlet of photovoltaic and photothermal integral plate (1), and the other end is connected with hot water preheating water tank's (2) a delivery port; Another water inlet of described hot water preheating water tank (2) connects water inlet pipe, and it is upper that described the first temperature sensor is arranged on the first pipeline (8), and described second pipe (9) is provided with circulating pump (10).

5. the integrated domestic type hot water air-conditioning system of solar energy according to claim 4 and air source heat pump, it is characterized in that: the pipeline being connected between described hot water preheating water tank (2) and heat pump water box (3) is the 3rd pipeline (11), and described heat pump water box (3) is provided with two water inlets and two delivery ports; One end of described the 3rd pipeline (11) is connected with another delivery port of hot water preheating water tank (2), and the other end is connected with a water inlet of heat pump water box (3); A delivery port of described heat pump water box (3) connects outlet pipe, is connected with the 4th pipeline (12) between described water inlet pipe and outlet pipe, and described the 4th pipeline (12) is provided with multifunctional pump (13).

6. the integrated domestic type hot water air-conditioning system of solar energy according to claim 5 and air source heat pump, it is characterized in that: the pipeline being connected between described refrigerant-water heat exchanger (5) and heat pump water box (3) has two, be respectively the 5th pipeline (14) and the 6th pipeline (15); One end of described the 5th pipeline (14) is connected with another delivery port of heat pump water box (3), and the other end is connected with the water inlet of refrigerant-water heat exchanger (5); One end of described the 6th pipeline (15) is connected with another water inlet of heat pump water box (3), and the other end is connected with the delivery port of refrigerant-water heat exchanger (5).

7. the integrated domestic type hot water air-conditioning system of solar energy according to claim 4 and air source heat pump, is characterized in that: the medium that described the first pipeline (8) and second pipe (9) adopt is ethylene glycol solution.

8. the integrated domestic type hot water air-conditioning system of solar energy according to claim 4 and air source heat pump, is characterized in that: on described second pipe (9), be also provided with Constant pressure tank (16).

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