A control method for an efficient multi-stage drying system
A technology of drying system and control method, which is applied in control/regulation system, non-electric variable control, simultaneous control of multiple variables, etc., can solve the problem of limited improvement in energy efficiency of heat pump drying and lack of efficient multi-stage drying system , less refrigeration compressor circulation and other problems, to avoid manual operation, high energy efficiency, less power
Active Publication Date: 2022-06-17
张勇
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Problems solved by technology
[0002] In order to continuously improve the energy efficiency of heat pump drying, the conventional technology is often to optimize and improve a single heat pump drying unit, and improve the energy efficiency of heat pump drying by adjusting system design, heat exchanger design, control, and air path design; but , this technology has a limited improvement in the energy efficiency of heat pump drying
[0003] In order to solve the problem of low energy efficiency in the existing technology, the invention application with application number 202010969665.9 discloses a high-efficiency multi-stage drying system, including a first drying area, a second drying area, a first air duct, and a second air duct , compressor, throttling device, first heat exchanger, second heat exchanger, first heat exchange assembly, first fan and second fan, etc., which make full use of multi-stage heat exchange and can use less refrigeration compression Machine circulation, to achieve more cooling capacity and heating capacity as a whole, to achieve the purpose of consuming less power, generating more cooling capacity, and discharging more water, so as to achieve higher energy efficiency of the overall drying system
However, there is a lack of technology related to the control method of this high-efficiency multi-stage drying system in the prior art
Method used
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Embodiment 1
[0070] This embodiment provides a control method for an efficient multi-stage drying system, such as figure 1 As shown, the high-efficiency multi-stage drying system includes a first drying area 101, a second drying area 102, a first air duct 103, a second air duct 104, a compressor 105, a throttling device 106, a first Heater 107, second heat exchanger 108, first heat exchange assembly 109, first fan 110 and second fan 111;
[0071] The control method of the high-efficiency multi-stage drying system is executed by a controller, and the control method of the high-efficiency multi-stage drying system includes the following steps:
[0072] S1. Receive the start request of the high-efficiency multi-stage drying system, output the fan start command to the first fan 110 and the second fan 111, output the throttle device start command to the throttle device 106, and output the compressor start command to the compressor 105;
[0073] S2. Receive and process in real time the temperat...
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The invention relates to the technical field of heat pump drying, and is used to provide a control method for a high-efficiency multi-stage drying system, comprising the following steps: receiving a start-up request of the high-efficiency multi-stage drying system, and outputting a fan start command to the first fan and the second fan , output the opening command of the throttling device to the throttling device, and output the opening command of the compressor to the compressor; receive and process the temperature data downstream of the first heat exchange surface of the first heat exchange component, the first heat exchange of the first heat exchange component The air dew point temperature data upstream of the surface, the dry bulb temperature data upstream of the first heat exchange surface of the first heat exchange component, and / or the relative humidity data upstream of the first heat exchange surface of the first heat exchange component, etc., and then in the above When the data is within the first standard deviation parameter range or the second standard parameter range, output the fan down command to the first fan. The invention realizes the automatic control of the high-efficiency multi-stage drying system, avoids the user's manual operation, and can improve the working efficiency of the multi-stage drying system.
Description
technical field [0001] The invention relates to the technical field of heat pump drying, in particular to a control method of an efficient multi-stage drying system. Background technique [0002] In order to continuously improve the energy efficiency of heat pump drying, the conventional technology is often to optimize and improve a single heat pump drying unit, and improve the energy efficiency of heat pump drying by adjusting system design, heat exchanger design, control, air path design, etc.; but , this technology has a limited improvement in the energy efficiency of heat pump drying. [0003] In order to solve the problem of low energy efficiency in the prior art, the invention application with application number 202010969665.9 discloses a high-efficiency multi-stage drying system, including a first drying area, a second drying area, a first air duct, and a second air duct , compressor, throttling device, first heat exchanger, second heat exchanger, first heat exchange...
Claims
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IPC IPC(8): G05D27/02
CPCG05D27/02
Inventor 张勇
Owner 张勇