Natural wind identification control method and system of heat pump unit and storage medium
A control method and technology of heat pump units, applied in heating and ventilation control systems, heating and ventilation safety systems, mechanical equipment, etc. Interference, the effect of improving reliability
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[0049] Implementation case one:
[0050] like figure 1 As shown, a method for identifying and controlling natural wind of a heat pump unit includes:
[0051] The cooling operation of the unit starts, and in the running time period Δt 0 After stable working conditions, the optimal time period Δt 0 = 10min. After the working condition is stable, the ambient temperature of the outdoor unit is obtained through the outdoor environment temperature sensor package. First, the time period Δt is obtained 1 The minimum ambient temperature T min , the preferred time period Δt 1 =3min, the time period Δt 1 The minimum ambient temperature T min Marked as the target temperature T C .
[0052] After a fixed cycle time, get the time period Δt of the outdoor unit 2 The ambient temperature interval, the fixed period is preferably 30min, according to the maximum value T of the ambient temperature interval Cmax and / or minimum T Cmin with the target temperature T C The temperature devia...
Example Embodiment
[0064] Implementation case two:
[0065] A natural wind recognition control system for a heat pump unit, comprising:
[0066] The first acquisition module is used to acquire the time period Δt of the outdoor unit 1 The minimum ambient temperature T min ;
[0067] The second acquisition module is used to acquire the time period Δt of the outdoor unit 2 ambient temperature range;
[0068] target temperature module for the minimum ambient temperature T min Marked as the target temperature T C And set the target temperature deviation ΔT;
[0069] The first calculation module is used to calculate the maximum value T of the ambient temperature range Cmax and / or minimum T Cmin with the target temperature T C The temperature deviation ΔT is obtained, and the temperature deviation ΔT is the maximum value T of the ambient temperature range Cmax with the target temperature T C The absolute temperature difference|T Cmax -T C |or the minimum value T of the ambient temperature ...
Example Embodiment
[0078] Implementation Case Three
[0079] like figure 2 As shown, a heat pump unit, a compressor 1, a four-way reversing valve 2, an outdoor heat exchanger 3, a gas-liquid separator 4, a flash evaporator 5, a first electronic expansion valve 6, an indoor heat exchanger 7, and an outdoor environment Temperature sensing package 8, solenoid valve 9, unit control device 10, second electronic expansion valve 11 and communication line 12, the compressor 1 is divided into three branches through the four-way reversing valve 2, and the first branch is connected in sequence An outdoor heat exchanger 3, a second electronic expansion valve 11, and a flash evaporator 5, the flash evaporator 5 is connected to the compressor 1 through a solenoid valve 9; the second branch is connected to the indoor heat exchanger 7, the first electronic expansion valve 6 into the flash evaporator 5; the third branch returns to the compressor 1 through the gas-liquid separator 4.
[0080] The outdoor envir...
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