Compact cooling/heating air-conditioning and hot water supply three-purpose machine capable of building natural circulating flow for heat exchange

Abstract

The invention discloses a compact cooling / heating air-conditioning and hot water supply three-purpose machine capable of building natural circulating flow for heat exchange. In the technical scheme, the machine is characterized in that a water heat exchange loop system capable of building the natural circulating flow for the heat exchange is adopted, and a water storage tank and a multi-layer spiral roller type hot water condensing heat exchanger in the water storage tank or a spiral tubular hot water condensing heat exchanger with a flow guide sleeve in the water storage tank are arranged inan outdoor unit. Compared with the cooling / heating air-conditioner, a tee valve and the hot water condensing heat exchanger are additionally arranged in a refrigerant loop. In the particular connection, the exhaust port of a compressor is connected with the air inlet of the tee valve, the first air outlet of the tee valve is connected with a refrigerant inlet of the hot water condensing heat exchanger, and the second air outlet of the tee valve is communicated with the refrigerant outlet of the hot water condensing heat exchanger and a first interface of a four-way valve in a tee way; and thelow-pressure air discharging pipe of the solenoid pilot valve of the tee valve is connected with the air suction pipe of the compressor of the refrigerant loop, and the high-pressure air feeding pipeof the solenoid pilot valve of the four-way valve is connected with the exhaust pipe of the compressor of the refrigerant loop. The machine has the functions of simultaneous hot water production and cooling, hot water production, cooling and heating.

Description

technical field [0001] The invention relates to the technical fields of refrigeration air conditioners, heat pump water heaters and energy saving. Background technique [0002] Existing domestic heating and cooling air conditioners are only used in summer and winter, and are generally idle in spring and autumn, resulting in seasonal waste of equipment and funds. Transforming the existing heating and cooling air conditioner into a three-purpose machine for cooling, heating, air conditioning, and hot water. Under the premise of ensuring the function of the air conditioner, it can replace the household electric water heater, which can save 70% of electricity. The energy saving effect is obvious and the market potential is huge. In order to achieve this goal, there are many related patented technologies, but most patents are equipped with multiple solenoid valves or multiple four-way valves on the refrigeration circuit, which makes the circuit structure complex, high failure ra...

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Problems solved by technology

In order to achieve this goal, there are many related patented technologies, but most patents are equipped with multiple solenoid valves or multiple four-way valves on the refrigeration circuit, which makes the circuit structure complex, high failure rate, or troublesome installation, difficult to promotion; although the applicant in this case has been engaged in the research of heating, air conditioning, and hot water three-purpose machines for ten years, he has applied for and been authorized a number of related patent technologies, such as: a double-effect four-season energy-saving heating, air-conditioning, and hot water three-purpose machine (patent number: 00264455.x), a four-season energy-saving heating and cooling air-conditioning and hot water three-purpose machine (patent number: 02116049.X), an air source heat pump water heater with a diversion sleeve heat exchanger water storage tank (patent number: 200510053315.3), with water The heat pump hot water unit (patent number: 200610085913.3) of the circulating heat exchange circuit still thinks that the refrigerant circuit is equipped with many valves and the throttling structure is complicated; in addition, the hot water of the air source heat pump water heater with the diversion sleeve heat exchanger The condensing heat exchanger is separated from the outdoor unit. It is necessary to connect the refrigerant pipeline of the hot water condensing heat exchanger to the refrigeration cycle circuit of the outdoor unit at the installation site, which needs to be driven by the refrigerant in the refrigeration cycle circuit of the outdoor unit. Hot water condenses the air in the heat exchanger, causing uncertainty in the amount of refrigerant charged, incomplete removal of non-condensable gases, and waste of refrigerant, which not only affects the efficiency of the unit, but also increases the difficulty of installation and production costs. Increase installation trouble

These reasons have hindered the marketization of three-purpose machines, making it impossible for three-purpose machines to play a good role in the era of low-carbon economy

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