Compressor control method and device of water heater, water heater system and storage medium

A control method and technology for compressors, applied in the field of compressor control, can solve problems such as failure of the unit to operate normally, failure to start up, etc.

Inactive Publication Date: 2020-06-09
GUANGDONG PHNIX ECO ENERGY SOLUTION
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Problems solved by technology

[0004] This application provides a compressor control method, device, water heater system and storage medium of a cascade hot water machine to solve the problem of frequent high pressure protection when the water temperature is too high in the prior art, and the failure of starting up due to the failure of the unit to operate normally. question

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  • Compressor control method and device of water heater, water heater system and storage medium
  • Compressor control method and device of water heater, water heater system and storage medium
  • Compressor control method and device of water heater, water heater system and storage medium

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[0029] In order to make the purpose, technical solution and advantages of the present application clearer, specific embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only parts relevant to the present application are shown in the drawings but not all content. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe various operations (or steps) as sequential processing, many of the operations may be performed in parallel, concurrently, or simultaneously. In addition, the order of operations can be rearranged. The proc...

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Abstract

The present invention discloses a compressor control method and device of a cascade type water heater, a water heater system and a storage medium. A first inlet water temperature before startup and asecond inlet water temperature after startup are detected; if the first inlet water temperature is lower than a first temperature threshold, primary compressors are started according to startup duty rules; when it is detected that the first inlet water temperature changes to be equal to or higher than the first temperature threshold and lower than a second temperature threshold, secondary compressors are started according to the startup duty rules; if the first inlet water temperature is equal to or higher than the first temperature threshold and lower than the second temperature threshold, the primary compressors and the secondary compressors are started according to the startup duty rules; if the second inlet water temperature is lower than a third temperature threshold, the secondary compressors are shut down according to shutdown duty rules; and if the second inlet water temperature is higher than a fourth temperature threshold, the primary compressors and/or the secondary compressors in startup states are shut down according to the shutdown duty rules. Frequent reporting of high-voltage protection is avoided and normal operation of a unit is ensured.

Description

technical field [0001] The invention relates to the technical field of compressor control, in particular to a compressor control method and device for a cascade water heater, a water heater system and a storage medium. Background technique [0002] Due to the particularity of the cascade water heater, each system includes a primary compressor and a secondary compressor. The refrigerants of the two systems are different, and the compressors of the two systems are controlled separately. The primary compressor corresponds to the condensation side, and the secondary compressor corresponds to the evaporation side. When the water temperature is extremely high, the unit needs to turn on the primary compressor and the secondary compressor at the same time. [0003] In related technologies, the primary compressor is usually turned on first, and then the secondary compressor is turned on. However, this will cause the condensing side of the primary compressor to fail to condense normal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF24H9/2007
Inventor 蔡鹏城雷朋飞罗金星
Owner GUANGDONG PHNIX ECO ENERGY SOLUTION
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