CN206488341U - Multi-energy complementation intelligent control HVAC system - Google Patents

Abstract

The utility model discloses a multi-energy complementary intelligent control HVAC system, which includes a main circulation system with a circulation pump, and a solar heat collection subsystem (1) and a gas boiler heat collection subsystem ( 2) and air source heat pump heat collection subsystem (3) three heat collection subsystems, and the main circulation system is also equipped with domestic hot water storage subsystem (8) and low temperature hot water radiant floor heating subsystem (11) , and at the same time, the central intelligent control system (12) in this system can also control the medium to directly deliver part of the collected heat to the user terminal for use by the user.

Description

Multi-energy complementary intelligent control HVAC system

technical field

The utility model relates to a heating and ventilation system, in particular to a multi-energy complementary intelligent control heating and ventilation system.

Background technique

In recent years, with the rapid development of human society and economy, coal, electricity, oil, natural gas and other energy sources are increasingly in short supply, energy crisis, environmental pollution and other issues have become increasingly prominent, and have become the top priority that threatens human survival. The development and utilization of new energy is particularly important. With the improvement of economic living standards, consumers have higher and higher requirements for heating and cooling. However, the cost of heating and cooling remains high, and the environmental pollution caused by heating and cooling is also becoming more and more serious.

As we all know, solar energy is the earliest natural energy used by human beings. With the advancement of solar thermal utilization technology, solar heating systems have begun to enter rural areas and cities. Highlighted: affected by the region, weather, etc., it cannot meet the energy demand well in real time, and the use of solar energy alone can no longer keep up with the pace of the times. It is reported that in addition to continuing to maintain stable investment in solar energy utilization products, some large enterprises have also invested a lot of energy in new energy, such as: air source heat, gas heat source and other auxiliary energy systems, and have set up related products. The research department has also achieved gratifying results, and successfully developed products such as air heat source pumps and gas boilers. However, the use of each energy source is not perfect and has its own limitations. In order to better solve the environmental problems in the heating and cooling process and meet the needs of energy saving and emission reduction, the complementary use of solar energy and other energy sources has become a The inevitable trend.

Contents of the invention

The utility model proposes a multi-energy intelligent complementary system in order to solve the above-mentioned deficiencies in the prior art.

The technical solution of the utility model is: a multi-energy complementary intelligent control HVAC system, characterized in that: the system includes a solar heat collection subsystem 1 and a gas boiler heat collection subsystem 2 connected in parallel in the main circulation system and air source heat pump collector subsystem 3,

The solar heat collection subsystem 1 includes a solar heat collector 4 and a solar water storage tank 5, the medium inlet of the solar water storage tank 5 is connected to the water inlet side of the main circulation system,

The medium inlet of the boiler in the heat collecting subsystem 2 of the gas boiler is also connected to the water inlet side of the main circulation system,

The air heat pump unit in the air source heat pump heat collection subsystem 3 is connected with a heat exchange tube through a pipeline, and the heat exchange tube is located in the temperature storage water tank 6, and the temperature storage water tank 6 is connected with the fan coil unit 7 through the air cooling circulation system. connected, and the medium inlet of the temperature storage tank 6 is also connected to the water inlet side of the main circulation system,

In the main circulation system, a domestic hot water storage subsystem 8 is also provided. The domestic hot water storage subsystem 8 includes an insulated container 9, and the medium inlet of the insulated container 9 communicates with the above-mentioned solar heat collector 1, gas The heat collecting subsystem 2 of the boiler is connected to the medium outlet of the heat collecting subsystem 3 of the air source heat pump, and an electric heating element 10 is also arranged in the heat preservation container 9,

A low-temperature hot water radiant floor heating subsystem 11 is also provided in the main circulation system. The low-temperature hot water radiant floor heating subsystem 11 includes a floor heating coil, and the medium inlet and medium outlet of the floor heating coil are connected to the main circulation system.

The medium outlets of the above-mentioned solar water storage tank 5, boiler 2, temperature storage tank 6 and heat preservation container 9 are all connected to the central intelligent control system 12 through pipelines, and the central intelligent control system 12 is located in the main circulation system, and through the pipeline The road is connected to the user terminal,

A circulation pump is provided in the main circulation system.

Compared with the prior art, the utility model has the following advantages:

This structural form of multi-energy complementary intelligent control HVAC system has a simple structure, ingenious design, and reasonable layout. It can not only meet the needs of users for heating in winter and cooling in summer, but also provide hot water for daily use in all seasons. This system perfectly combines multi-energy complementary technology, energy cascade utilization technology, low-temperature high-efficiency heating technology, and central intelligent control technology. The heat unit, etc., can be intelligently combined according to the environmental conditions, realizing the complementary advantages of the four energy sources, and using the central intelligent control system to realize multi-energy collaborative optimization control. This heating system can start any one of these four units independently, or start two, three or four of them at the same time, give priority to the use of solar energy and air heat sources, and use gas and electric energy as supplementary energy to achieve energy saving , Environmental protection, health, low carbon, comfortable life, fully meet the needs of family heating, sanitary hot water, air conditioning and refrigeration. This system solves the limitations of using single energy products in household heating and cooling applications, realizes the complementary advantages of various energy products, minimizes the consumption of traditional energy, and meets the needs of high-quality life.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

detailed description

The specific embodiment of the utility model will be described below in conjunction with the accompanying drawings. As shown in Figure 1: a multi-energy complementary intelligent control HVAC system, which includes a solar heat collection subsystem 1, a gas boiler heat collection subsystem 2 and an air source heat pump heat collection subsystem 3 connected in parallel in the main circulation system. in:

The solar heat collection subsystem 1 mainly includes a solar heat collector 4 and a solar water storage tank 5, and the medium inlet of the solar water storage tank 5 is connected with the water inlet side of the main circulation system, and cold water can be added to the solar water storage tank 5 through the main circulation system, The solar heat collector 4 converts solar energy into heat energy, and heats the cold water in the solar water storage tank 5, and when the heated hot water passes through the heat exchange tube 13 in the heat preservation container 9, a part of heat is transferred to the heat preservation container 9 by the heat exchange tube. The water is heated and stored as domestic hot water, and then the remaining heat directly enters the floor heating coil of the low-temperature hot water radiant floor heating subsystem 11 after passing through the heat exchange tube, and the hot water in the heat preservation container can be passed through the central intelligent control system 12 It is directly supplied to user terminals (such as faucets, shower nozzles, etc.) for use; since the heating water and domestic hot water in this system are separated, it is healthy and hygienic.

Gas-fired boiler heat collection subsystem 2 includes a gas-fired boiler, and the medium inlet of the boiler is also connected to the water inlet side of the main circulation system. When the gas-fired boiler becomes the heat source of the water heating system, it continuously heats the returning cold water and then enters the main circulation system for circulation , and then cut off or connect the hot water through the function of the water separator and the electromagnetic valve, and finally achieve the different temperature requirements of each independent heating area. The heat pipe heats the water in the thermal insulation container 9 and stores it as domestic hot water, and then the remaining heat is directly input into the floor heating coil of the low-temperature hot water radiant floor heating subsystem 11 after passing through the heat exchange tube, and the hot water in the thermal insulation container can be It is directly supplied to user terminals (such as faucets, shower heads, etc.) through the central intelligent control system 12 for use;

The air source heat pump heat collection subsystem 3 includes an air heat pump unit, which is connected to a heat exchange tube through a pipeline, and the heat exchange tube is located in the temperature storage tank 6, and the temperature storage tank 6 is connected by the air cooling circulation system and the fan disk. The pipe 7 is connected, and the medium inlet of the temperature storage tank 6 is also connected with the water inlet side of the main circulation system,

Among them, the air heat pump unit works according to the "reverse Carnot" principle, and the reverse Carnot cycle principle: through the operation of the compressor system, the heat in the air is absorbed to produce hot water. The specific process is: the compressor compresses the refrigerant, the refrigerant whose temperature rises after compression, passes through the condenser in the water tank to produce hot water, and the heat-exchanged refrigerant returns to the compressor for the next cycle. In this process, the heat of the air passes through The evaporator is absorbed into the refrigerant, and the refrigerant is then introduced into water to generate hot water, which is stored in the temperature storage tank 6 . The hot water in the temperature storage tank 6 can heat the circulating water in the main circulation pipeline through the heat exchange tube, and participate in the floor heating coil water circulation of the low-temperature hot water radiant floor heating subsystem 11 . Simultaneously, when the hot water in the main circulation line passes through the heat exchange tubes in the thermal insulation container 9, a part of the heat passes through the heat exchange tubes to heat the water in the thermal insulation container 9 and store it as domestic hot water. During cooling in summer, the solenoid valve is automatically switched, the floor heating coil of the low-temperature hot water radiant floor heating subsystem 11 is closed, and the main circulation line does not pass through the heat exchange tube in the temperature storage tank 6 . The chilled water generated by the air source heat pump subsystem 3 is stored in the temperature storage tank 6, and is used to freeze the heat in the fan coil unit and lower the room temperature.

Since the heat collecting subsystem 3 of the air source heat pump does not need sunlight, it can be placed at home or outdoors. After the water stored in the solar water heater is used up, it is difficult to produce hot water immediately. If electric heating takes a long time, as long as there is air and the temperature is above the allowable temperature, the air source heat pump can operate under pressure 24 hours a day. Even if a box of water is used up, another box of hot water will be produced in about an hour. It overcomes the embarrassment that solar water heaters have no hot water available in rainy days, nights, no sunlight, and freezing.

The hot water generated by the air-source heat pump heat collection subsystem 3 is used in conjunction with the air-cooled circulation system and the fan coil unit 7. It can not only provide heat supplement for solar heating in winter, but also independently complete the demand for cooling in summer, realizing a one-machine Multi-purpose, make full use of energy, and reduce investment costs. When entering the summer cooling mode, the system automatically switches between the winter and summer circulation pipelines through the four-way valve, controls the solenoid valve, uses the temperature storage water tank 6 to carry out the refrigeration cycle, and sends the low-temperature water to the fan coil unit 7 through the refrigeration pump, Through the heat exchange of the 7 tubes of the fan coil, the heat in the room is absorbed, and the temperature of the room is cooled to achieve the purpose of cooling. Due to the cold water system, indoor moisture and human body moisture are not easy to lose.

The domestic hot water storage subsystem 8 is also included in the main circulation system. The domestic hot water storage subsystem 8 here includes a thermal insulation container 9, and the medium inlet of the thermal insulation container 9 is connected with the above-mentioned solar heat collector 1 and gas boiler through pipelines. The heat collection subsystem 2 is connected to the medium outlet of the air source heat pump heat collection subsystem 3, and an electric heating element is also arranged in the heat preservation container 9,

The thermal insulation container 9 here is mainly used in the exchange and storage of heat from solar energy, gas boilers, and air energy. The rest of the heat is reciprocated in the main circulation system to ensure heating and heating requirements; and when the heat collected by the above three heat collection subsystems is insufficient, the heat preservation container can be heated by turning on the electric heating element 10. The water body in 9 is heated as the auxiliary heat source of the system;

A low-temperature hot water radiant floor heating subsystem 11 is also provided in the main circulation system. The low-temperature hot water radiant floor heating subsystem 11 includes a floor heating coil, and the medium inlet and medium outlet of the floor heating coil are connected to the main circulation system. The heat collected by the above-mentioned heat collection subsystem will be input into the floor heating coil along with the medium to heat and supply the room.

The medium outlets of the above-mentioned solar water storage tank 5, boiler 2, temperature storage tank 6 and heat preservation container 9 are all connected to the central intelligent control system 12 through pipelines, and the central intelligent control system 12 is connected to the user terminal through pipelines, The central intelligent control system 12 can control one or several heat collection subsystems to work according to the actual situation and needs to realize heat collection, or send part of the heat in the heat-carrying medium to the thermal insulation container 9 through the heat exchange tube The other part of the heat is sent to the floor heating coil for heating. The hot water in the thermal insulation container 9 is directly supplied to the user terminal for use.

Claims (1)

1. A multi-energy complementary intelligent control HVAC system, characterized in that: the system includes a solar heat collection subsystem (1), a gas boiler heat collection subsystem (2) and an air source connected in parallel in the main circulation system heat pump collector subsystem (3), The solar heat collection subsystem (1) includes a solar heat collector (4) and a solar water storage tank (5), the medium inlet of the solar water storage tank (5) is connected to the water inlet side of the main circulation system, The medium inlet of the boiler in the gas-fired boiler heat collection subsystem (2) is also connected to the water inlet side of the main circulation system, The air heat pump unit in the air source heat pump heat collection subsystem (3) is connected with a heat exchange tube through a pipeline, and the heat exchange tube is located in the temperature storage tank (6), and the temperature storage tank (6) is circulated by air cooling The system is connected to the fan coil unit (7), and the medium inlet of the temperature storage tank (6) is also connected to the water inlet side of the main circulation system. A domestic hot water storage subsystem (8) is also provided in the main circulation system. The domestic hot water storage subsystem (8) includes a thermal insulation container (9), and the medium inlet of the thermal insulation container (9) is connected with the above-mentioned The solar heat collector (4), the gas boiler heat collection subsystem (2) and the medium outlet of the air source heat pump heat collection subsystem (3) are connected, and an electric heating element 10 is also arranged in the heat preservation container (9). A low-temperature hot water radiant floor heating subsystem (11) is also provided in the main circulation system. The low-temperature hot water radiant floor heating subsystem (11) includes a floor heating coil, and the medium inlet and medium outlet of the floor heating coil are connected to the main circulation. system connected, The medium outlets of the above-mentioned solar water storage tank (5), boiler, temperature storage tank (6) and thermal insulation container (9) are all connected to the central intelligent control system (12) through pipelines, and the central intelligent control system (12) Located in the main circulation system and connected to the user terminal through pipelines, A circulation pump is provided in the main circulation system.