Frequency conversion heat pump water heater compressor frequency dynamic optimization method

Frequency conversion heat pump water heater compressor frequency dynamic optimization method

  • CN 107,906,760 A
  • Filed: 10/27/2017
  • Published: 04/13/2018
  • Est. Priority Date: 10/27/2017
  • Status: Active Application
First Claim
Patent Images

1. a kind of frequency conversion heat pump water heater compressor frequency dynamic optimization method, frequency conversion heat pump water heater includes frequency-changeable compressor(

  • 1)

    , gas-liquid separator(

    2)

    , evaporator(

    3)

    , throttle valve(

    4)

    , outdoor environment temperature sensor(

    5)

    , controller(

    6)

    , water tank temperatureSpend sensor(

    7)

    , water tank(

    8)

    , condenser(

    9)

    , four-way valve(

    10)

    And exhaust gas temperature sensor(

    11)



    It is characterized in that:

    During frequency conversion heat pump water heater whole service, to frequency-changeable compressor(

    1)

    Working frequency dynamic optimization adjust, make heat-pump hot-waterThe total energy consumption of device whole service process is minimum;

    Frequency-changeable compressor(

    1)

    Working frequency dynamic optimization adjusting method it is as follows:

    Establish the instantaneous heating capacity q of Teat pump boiler and outdoor environment temperature sensor(

    5)

    The outdoor environment temperature T of detection1, water tankTemperature sensor(

    7)

    The water tank of detection(

    8)

    Actual temperature T2And frequency-changeable compressor(

    1)

    Working frequency f between relationFormula I:

    q=E(T1, T2,f);

    The table of total heating capacity Q in Teat pump boiler whole service time t can be obtained according to relational expression IUp to formula II:



    Establish the instantaneous energy consumption p of Teat pump boiler and outdoor environment temperature sensor(

    5)

    The outdoor environment temperature T of detection1, water tank temperatureSpend sensor(

    7)

    The water tank of detection(

    8)

    Actual temperature T2And frequency-changeable compressor(

    1)

    Working frequency f between relational expressionⅢ



    p= F(T1, T2,f);

    The expression of the total energy consumption P in Teat pump boiler whole service time t can be obtained according to relational expression IIIFormula IV:



    User sets the specific moment t with water0With water tank water temperature T, controller(

    6)

    Detect current water tank temperature sensor(

    7)

    DetectionWater tank(

    8)

    Actual temperature T2, required total heating capacity Q is calculated, with Teat pump boiler whole service process total energy consumption P mostIt is small to be used as desired value, frequency-changeable compressor during whole service is calculated according to expression formula II and expression formula IV(

    1)

    WorkThe relational expression V that frequency f changes with run time t:

    F=F (t), Teat pump boiler are dynamic by relational expression V during whole serviceState adjusts frequency-changeable compressor(

    1)

    Working frequency f.

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