Method for adjusting electronic expansion valve
An electronic expansion valve and adjustment method technology, applied in the field of refrigeration system control, can solve problems such as the system being in an optimal state and the control method is not perfect, and achieve the effect of avoiding excessive adjustment or excessive adjustment and improving operation economy.
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[0041] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.
[0042] figure 1 A basic flow chart of an electronic expansion valve adjustment method provided by a specific embodiment of the present invention is shown, figure 2 A flowchart of the preferred adjustment method. Such as figure 2 A method for adjusting an electronic expansion valve is shown, and the applied refrigeration system is a heat pump system, comprising the following steps: (a) obtaining the superheat adjustment threshold F of the heat pump system; (b) measuring the superheat SV n The value of , n is a natural number; (c) according to the superheat SV measured in step (b) n The value of determines the operating mode of the electronic expansion valve: when F-f≤SV n n n When ≥F+f, the opening of the electronic expansion valve increases; where the deviation value f is 3. This control method detects system data during...
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