What is the composition of an air source heat pump unit?

Air source heat pump water heater.

It is the world's most advanced environmental protection and energy-saving heating product that uses the heat energy in the air as the heat source to absorb heat from the air above 10 temperatures and heat cold water through heat exchange.

The heat source of heat pump products comes from the air, so the heat pump water heater with the same amount of water and water temperature consumes less energy than the general traditional hot water equipment, with low noise, long life and operating cost is the electric water heater.

1 4, natural gas boilers, oil-fired boilers, coal-fired boilers 1 3, solar water heaters.

of 1 2. In addition, while producing hot water, cold air is discharged from the exhaust vent, which can be used effectively.

The working principle and structure of the air source heat pump water heater.

1. Working principle diagram of heat pump hot water unit.

Evaporator. Heat and cold exchangers, throttling devices (expansion valves.

It is composed of five parts.

The liquid refrigerant at low temperature and low pressure absorbs the heat from the air through the evaporator (air-side heat exchanger) and evaporates from a liquid state to a gaseous state - the heat absorbed by the refrigerant from the air is set to Q1.

The refrigerant that absorbs heat becomes a low-temperature and low-pressure gas, and then compresses it by the compressor through a small amount of electrical energy input, so that the refrigerant in the low-temperature and low-pressure gaseous state becomes a high-temperature and high-pressure state - the heat converted by the compression work of the compressor is set to Q2.

The gaseous refrigerant at high temperature and pressure is exchanged with cold water in a heat exchanger, and the refrigerant is cooled at room temperature and condensed into a liquid state. In this process, the heat emitted by the refrigerant heats the cold water – the heat absorbed by the cold water is set to Q3.

After heat exchange, the high-pressure liquid refrigerant is depressurized by a throttling mechanism (expansion valve), and due to the pressure drop, the refrigerant returns to a liquid state at a low temperature and low pressure that is lower than the outside ambient temperature, and has the ability to absorb evaporation again.

In this way, the cold water is heated until the desired temperature of hot water is obtained, and it is stored in an insulated hot water tank.

According to the law of conservation of energy.

Get: q3=q1+q2. Heating of heat pump hot water unit Q3 Q2.

In other words, the heat used to heat the cold water is greater than the electrical energy consumed by the compressor, and the difference between the two is the heat absorbed from the surrounding environment. In the process of preparing hot water, the heat pump absorbs 2 3 parts of low-grade heat energy from the environment for each part of electric energy, so the electric energy used is only about 1 4 of the electric boiler, which greatly reduces the consumption of electric energy. This is the reason why heat pump water heaters are more energy-efficient than electric heaters.

Utilize heat pump technology.

And use low-grade thermal energy in the environment to prepare hot water, which is fully in line with China's energy strategy.

Compressors, side water heat exchangers, throttling devices, evaporators, and other control equipment, fans.

Air source heat pump sensitivity.

It is mainly composed of compressor, expansion valve, fin heat exchanger and casing heat exchanger, which drives the compressor and motor to do work through the input of electric energy, so that the fin heat exchanger realizes heat absorption, and the casing heat exchanger releases heat, and the heating effect is as high as 380%, which is one of the most energy-saving heat source equipment at present, and in the process of use, safety, environmental protection and high efficiency are its main features.

The heart component – the compressor.

As the heart component of the air source heat pump, the compressor is equivalent to the CPU of the computer and the heart of the human body, through which the refrigerant can be driven.

The circulation of thermal expansion and cold contraction is realized.

and let the refrigerant achieve the physical change of evaporative endothermic and condensation exothermy.

Throttling device - Yu Nasun - capillary, electronic expansion valve.

and thermostatic expansion valves.

Throttle. It can usually be divided into capillary throttling, thermodynamic expansion valve throttling (internal balance, external balance) ballast chain and electronic expansion valve throttling, by changing the pressure change of the refrigerant, the process of liquefaction and gasification of the refrigerant, the detection and data acquisition of many parameters such as superheat or the temperature difference of the inlet and outlet air, the return air temperature and its set value, and the opening of the expansion valve is controlled after microprocessor processing to meet the requirements of the system load. The advantage of the electronic expansion valve is the ability to precisely control the refrigerant flow and thus the evaporation temperature.

It is usually used in places where temperature control accuracy is required to be relatively high.

Electronic expansion valves can work well above 70, but thermostatic expansion valves can only reach a minimum of 60. The capillary is used in a small refrigeration system (the structure is simple and not adjustable, after all, the capillary is just a small copper tube);

Expansion valves are used in large and medium-sized refrigeration systems (relatively complex and adjustable), and the refrigerant flow can be adjusted in addition to controlling the evaporator.

In addition, it can also be used to adjust the condenser.

When the evaporation condition allows, if the condensing pressure is too high, the expansion valve can be properly closed to reduce the flow of refrigerant in the system and reduce the load of the condenser, so as to reduce the condensation pressure and realize the air energy water heater.

Efficient and reliable operation of the unit.

Exothermic components – tube sleeve heat exchangers.

The casing heat exchanger is a carrier that transfers part of the heat of the hot fluid to the water, and the high-efficiency threaded copper pipe is selected, and the treated galvanized steel pipe is outwrapped.

The process of refrigerant water-in-water is realized, so that the high-temperature refrigerant gas is fully in contact with the water to achieve better heat transfer effect.

There are four major components of air source heat pump: compressor, condenser, throttling device, and evaporator.

The main component of air energy equipment is the compressor, which is equivalent to the heart of the Zen air source heat pump, which operates through the compressor to cause the circulation of the refrigerant, so that the refrigerant can realize the physical changes of evaporative heat absorption, condensation and heat release. To put it bluntly, the better the quality of the compressor, the higher the cooling and heating efficiency.

Secondly, the air source heat pump also includes important components such as evaporators, condensers, and expansion valves. Among them, the expansion valve can be divided into two categories: electronic expansion valve and thermal expansion valve, which can control the state flow of refrigerant through a number of parameter settings.

After opening the door, the air source heat pump also needs auxiliary accessories such as outdoor units and piping systems. The outdoor unit is responsible for absorbing and discharging heat from the outdoor environment, while the piping system connects the refrigerant flow together to form a closed circulation system.

The types of systems used for air source heat pump heating are divided into four main categories:

1) Air source heat pump + radiator (radiator); The temperature of the water supply and the dust are generally around 55. Absolute Zen.

2) Air source heat pump + fan coil unit; The water supply temperature is generally around 45.

3) Air source heat pump + ground radiant heating; The water supply temperature is generally around 35.

4) Air source heat pump direct condensation Aqing heating (including hot air fan, waterless floor heating, etc., this type of application is relatively rare).

The air source heat pump unit has the following three main characteristics:

1.Energy-efficient. The air source heat pump unit can obtain a large amount of free heat from the surrounding air, and under normal circumstances, it can produce more than 3 4 kWh of electricity for every 1 kWh of electricity consumed.

The energy efficiency ratio (COP) of the unit can reach more than 3 4 on average, which is equivalent to a thermal efficiency of more than 300% 400%;

2.Economical and durable. Due to the high efficiency and low operating cost, it is less than 1 3 1 4 of the electric boiler, and it can greatly reduce the power supply load and save the power capacity increase fee.

Compared with gas-fired boilers, there is no need for a corresponding fuel system, so there is no fuel transportation cost and management cost;

3.Safe and environmentally friendly. The heat pump unit is equipped with a variety of automatic safety protection functions such as high and low pressure abnormal protection, compressor overload protection, fan overheat protection, phase loss protection, leakage protection, sensor fault protection, temperature limit protection and so on.

Compared with the traditional hot water boiler, there is no corresponding fuel and flue gas emission system, and the system is safe, hygienic and clean, and there are no potential safety hazards such as fuel leakage, fire, and fire.

1. an evaporator.

An evaporator is an air source heat pump.

A very important component, the low-temperature condensation "liquid" body through the evaporator, the mountain and the outside air for heat exchange, "gas" qualitative heat absorption, to achieve the effect of refrigeration;

2. a condenser.

It can transfer the heat in the tube to the air near the tube in a very fast way;

3. Compressor: It is a driven fluid machinery that can lift low-pressure gas to high pressure, and is the heart of the air heat source pump;

4. Yanwei expansion valve: The expansion valve is an important part of the air heat source pump, which is generally installed between the liquid reservoir and the steamer generator. Expansion valves enable medium temperature and high pressure liquid refrigerant.

Through its throttling, it becomes a low-temperature and low-pressure wet steam, and then the refrigerant absorbs heat in the evaporator to achieve the refrigeration effect, and the expansion valve controls the valve flow through the superheat change at the end of the evaporator, preventing the underutilization of the evaporator area and the phenomenon of knocking the cylinder.

1.According to the structural form: integral type, split type.

2.According to the heating method: fluorine circulation type, Linglu water circulation type, and primary cover tung heating type. The fluorine cycle can be divided into: the inner coil and the outer coil.

3.According to the form of heat source: air source, water source, dual source (air to ground) 4According to the application: heat pump water heater, heating heat pump, high temperature heat pump, triple heat pump.

5.Others: inverter heat pump, drying heat pump, etc.

The air source heat pump unit is an efficient, environmentally friendly and energy-saving heating method, which has the following advantages compared with the traditional heating method:

High efficiency and energy saving: The air source heat pump unit has high thermal efficiency, which can convert the heat in the environment into heating energy, which is more energy-saving than traditional coal-fired and gas-fired methods, and can significantly reduce heating costs.

Environmental protection and energy saving: The air source heat pump unit will not produce harmful gases, will not emit pollutants during use, and can effectively reduce air and water pollution compared with traditional coal and gas consumption.

Safe and reliable: The air source heat pump unit has no open flame, will not produce gas leakage and other potential safety hazards, and is relatively safe and reliable to use.

Convenient and comfortable: The air source heat pump unit does not require facilities such as chimneys and gas storage tanks, and is relatively easy to install and maintain, while also not producing uncomfortable situations such as noise and odor.

Wide range of application: The air source heat pump unit is not limited by geography and climate, and is suitable for heating and cooling under various climatic conditions, and has a wide range of applications.

Air source heat pump, also known as heat pump water heater, is made of hot water by absorbing air heat source by heat pump, and the energy-saving efficiency is more than 4 times that of electric water heater, which is more energy-saving than solar water heater, and is currently the world's most advanced energy-saving and environmentally friendly hot water system.

It works by absorbing the heat in the air (through a refrigerant refrigerant), releasing it into the water, circulating the water to heat it, and at the same time releasing the cryogenic air that has lost a lot of energy into the kitchen or other places that need to be cooled for the kitchen or other refrigeration needs. While the air loses energy and lowers the temperature, a large amount of water vapor is condensed, so the humidity of the released cold air is greatly reduced, which is equivalent to having a dehumidification effect. Therefore, it can integrate energy-saving hot water, kitchen (bathroom) refrigeration, and local dehumidification functions, which greatly improves the cost performance.

The operating temperature of the air source heat pump is minus 10 to 40 degrees Celsius. The use of this technology, can effectively save energy, its operating cost is only 1 4 of the electric water heater, such as according to the existing electricity price and oil price, the same amount of hot water, its operating cost is only 1 2 of the oil-fired boiler.

Energy saving: The operating cost is 1 4 of the electric boiler, 1 3 of the oil-fired boiler, and 1 2 of the gas boiler, which is more energy-efficient than the solar water heating system. The energy efficiency ratio is high, and the energy saving effect is very obvious.

Summary. Air source heat pump hot water unit is a kind of energy-saving and environmentally friendly hot water device that can replace the boiler without resource limitations, it uses green and pollution-free cold coal, absorbs the heat in the air, and produces more than 50 degrees of domestic hot water through the work of the compressor, with an annual value of more than 10 degrees. The air source heat pump hot water unit is suitable for indoor swimming pools, hotels, villas, hair salons, bathing and foot spas, factories, schools and farms and other places that need hot water for central heating.

The air source heat pump hot water unit can be used for cooling at the same time during the heating process, and can also be installed in places that require cooling capacity but do not have high requirements.

Hello dear, the air source heat pump unit belongs to the high-pressure system.

Air source heat pump heat let Lu socks water unit is a kind of energy-saving and environmentally friendly hot water device that can replace the boiler without resource limitations, it uses green and pollution-free cold coal, absorbs the heat in the air, and produces more than 50 degrees of domestic hot water through the work of the compressor, with an annual value of more than 10 degrees. The air source heat pump hot water unit is suitable for indoor swimming pools, hotels, villas, hair salons, bathing and foot spas, factories, schools and farms and other places that need hot water central heating. The air source heat pump hot water unit can be used for cooling at the same time during the heating process, and can also be installed in places that require cooling capacity but do not have high requirements.