Domestic central air-conditioning water pump box

Abstract

The invention provides a water pump box of a household central air conditioner, which is connected between the outdoor main unit and the indoor unit, and has a heat exchanger, a pump body, and a water supply pipe connected to the water supply pipe of the indoor unit in the water storage tank. The gas is connected, and the heat exchanger has a condenser pipe and a return pipe. One end of the return pipe is directly opened at the bottom of the tank, and part of the condenser pipe is built in the return pipe. The pump body is a submersible pump installed at the bottom of the water storage tank. The submersible pump It has a suction port and a water outlet, and the water outlet is connected to the water supply pipe; the return pipe and the water supply pipe respectively have valve bodies that can block or connect the fluid in them; the valve bodies are opened or closed at the same time. The invention adopts the spiral casing heat exchanger, which has low cost and stronger adaptability; compact structure, smaller volume, and more convenient installation. In addition, a multi-pipe heat exchanger can be used to achieve better energy-saving effect.

Description

technical field [0001] The invention relates to a household central air-conditioning system, in particular to a water pump box of the household central air-conditioning. Background technique [0002] With the development of society and the improvement of people's living standards, people's housing area is getting larger and larger, and ordinary one-drag air conditioners are increasingly unable to meet people's requirements for air conditioning in rooms and rational use of energy. At the same time, it will damage the overall aesthetics of the exterior of the house. Household central air conditioners have strong air conditioning capabilities, and the advantages of centralized installation of outdoor units and smaller footprints have gradually been recognized and used by people. [0003] The current "air-cooled heat pump chiller type" household central air conditioner usually consists of an outdoor unit, a water pump box, an indoor unit (fan coil unit) and pipelines connecting...

AI Technical Summary

Problems solved by technology

[0005] In addition, due to the closed system, the damage and replacement of any part of the indoor equipment must be closed in sections to facilitate system maintenance. If the water pump box fails, the entire water pump box needs to be disassembled for maintenance.

[0006] The heat exchanger in the water pump box adopts a plate type exchanger, the production cost is relatively high, and the process is relatively complicated. Since there is no water storage device, the constant pressure tank is placed at the front end of the heat exchanger to maintain the pipeline pressure, so it cannot store heat. Insulation function, once the main machine stops working, the water temperature in the system will change drastically, and the signal of the temperature control sensor will change a lot, which is not conducive to energy saving and affects the comfort of the human body during cooling and heating

[0007] In addition, in the actual installation process of existing products, the indoor equipment is completely separated from the control of the outdoor main unit and the water pump box. In the actual use process, the user needs to go through two steps to start and stop the system. , and then turn on the indoor unit, the procedure is cumbersome

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