Splitting box, multi-connected air conditioning system and operation method of multi-connected air conditioning system

Abstract

The invention discloses a splitting box, a multi-connected air conditioning system and an operation method of the multi-connected air conditioning system, relates to the technical field of air conditioners, and aims to improve comfort during refrigeration and heating. The multi-connected air conditioning system comprises an outdoor unit, a floor heating tube set and at least one indoor unit, the multi-connected air conditioning system further comprises a liquid pipe splitter which is connected between the liquid pipe end of the outdoor unit and the floor heating pipe set, and between the liquid pipe end of the outdoor unit and at least one indoor unit, an air pipe splitter which is connected between the air pipe end of the outdoor unit and the floor heating pipe set, and between the air pipe end of the outdoor unit and at least one indoor unit, and control valves each of which is arranged on a pipeline between the air pipe splitter and at least one indoor unit, and is used for limitinga refrigerant to flow from the air pipe splitter to at least one indoor unit during heating of the floor heating pipe set. According to the multi-connected air conditioning system provided, independent refrigeration of the indoor units and independent heating of the floor heating pipe set are realized, and the comfort during refrigeration and heating is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a branch box, a multi-connected air conditioning system and an operating method thereof. Background technique [0002] At present, for household and commercial air-conditioning systems, both cooling and heating are realized by forced convection heat exchange through the fan system through the same end of the indoor unit and the indoor wind field. Users can basically accept this method for cooling, but it cannot be accepted by most users for heating due to its low comfort, which leads to users needing to install additional central heating water radiators or water system floor radiation heating equipment Wait to achieve heating. [0003] The plumbing system on the market is divided into two forms: central heating and household heating. The heating installation process of the centralized water system is complicated, the risk of leakage is high, and it can only be used for...

AI Technical Summary

Problems solved by technology

Among them, the cost of gas furnace is relatively high, and it needs to use gas heating water system for heating, and cooling cannot be realized

Although water / ground source heat pumps use free energy, there is a problem that the energy cannot be continuously provided, and the whole system requires large water pumps and secondary heat exchange equipment, which requires high investment and high maintenance costs

The air source heat pump water machine exchanges heat through the refrigerant and water twice, and the efficiency is low

Moreover, the above-mentioned water machines all have risks such as scale and water leakage, and the later maintenance is complicated and expensive

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