Fixed-frequency space energy system and control method

Abstract

The invention provides a fixed-frequency space energy system and a control method. The system comprises an irradiation detection device, a compressor, an electronic expansion valve and a control device; the irradiation detection device is used for detecting a first irradiation value in the environment; the control device is used for starting the compressor and controlling the opening degree of the electronic expansion valve to adapt to the first irradiation value when the first irradiation value and a preset irradiation value meet the preset relation, wherein the preset irradiation value is a corresponding irradiation value obtained in advance when the heating time of the space energy system is smaller than a threshold value. The fixed-frequency space energy system can judge the starting time of the compressor through the detected irradiation value and the preset irradiation value, that is, the compressor is automatically controlled to be started according to an actual irradiation value, the range of the starting and stopping time of the compressor is narrowed, and the solar irradiation utilization rate is improved; and furthermore, the opening degree of the electronic expansion valve is controlled according to the detected irradiation value, the efficiency of the space energy system is improved, the operation time of the compressor is shortened, and power consumption is reduced.

Description

technical field [0001] This application relates to the technical field of intelligent terminals. In particular, it relates to a fixed-frequency space energy system and a control method. Background technique [0002] The space energy system generally refers to the combination system of solar energy and air energy, which is mainly used in the hot water system combined with solar energy and air energy, and is called "space energy water heater". The space energy system utilizes a large amount of low-grade energy (solar energy and air, etc.) in the surrounding environment by consuming a small amount of electric energy, and compresses it into high-grade energy through the heat pump compressor. The space energy system organically combines heat pump technology and solar thermal utilization technology to improve the efficiency of solar collectors and the performance of heat pump systems. [0003] In the prior art, in order to meet the needs of users in different regions and ensure ...

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Problems solved by technology

[0004] However, in the above scenario, the space energy system may start operating in the morning and stop before noon

In this way, the energy absorption speed of the space energy system is slow, which makes the heating rate low and the efficiency of the system low, so the compressor runs for a long time and consumes a lot of power.

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