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A control method and water temperature control device for a two-connected heat pump system

A technology of heat pump system and control method, which is applied in the direction of mechanical equipment, etc., can solve problems such as insufficient intelligence, indoor temperature fluctuation, and reduce user experience, so as to achieve the effect of improving energy saving, ensuring comfort, and improving experience

Active Publication Date: 2022-06-28
GUANGDONG NEW ENERGY TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to unreasonable water temperature setting selection, it will cause indoor temperature fluctuations and unnecessary energy loss
And if it is necessary to maintain a certain degree of indoor comfort for a long time, the user needs to manually adjust the set water temperature of the two-connected heat pump unit, so that the user needs to adjust both the indoor temperature setting and the water temperature setting of the two-connected heat pump unit. This kind of control is not intelligent enough, and it increases the user's burden and reduces the user experience.

Method used

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  • A control method and water temperature control device for a two-connected heat pump system
  • A control method and water temperature control device for a two-connected heat pump system
  • A control method and water temperature control device for a two-connected heat pump system

Examples

Experimental program
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Effect test

Embodiment 1

[0050] like figure 1 As shown, this embodiment provides a control method for a dual heat pump system, including the following steps:

[0051] S1: Obtain the current indoor average usage temperature, the indoor average usage temperature in the last detection period, the current indoor average usage target temperature, the current control water temperature of the heat pump system, and the detection period;

[0052] S2: According to the current average indoor use temperature and the indoor average use temperature of the last detection period, the change value of room temperature in the detection period is obtained through function calculation, and the relevant parameters in the target control water temperature function of the heat pump system are determined;

[0053] S3: According to the current average indoor use target temperature and the current indoor average use temperature through function calculation, the indoor temperature deviation value in the detection period is obtain...

Embodiment 2

[0074] like figure 2 As shown, this embodiment provides a control method for a dual heat pump system, including the following steps:

[0075] S1': Obtain the current indoor average use temperature, the indoor average use temperature in the last detection period, the current indoor use average target temperature, the current control water temperature of the heat pump system, and the detection period;

[0076]S2’: According to the current indoor average use temperature and the indoor average use temperature of the last detection period, the change value of the room temperature in the detection period is obtained through function calculation;

[0077] S3': According to the current average indoor use target temperature and the current indoor average use temperature through function calculation, the indoor temperature deviation value in the detection period is obtained;

[0078] S4': Determine the target control water temperature function of the heat pump system, determine the re...

Embodiment 3

[0097] like Figure 4 As shown, this embodiment provides a water temperature control device for a dual heat pump system, including an acquisition unit 100, a calculation unit 200, a selection unit 300, and a control unit 400, wherein the acquisition unit 100 is used to acquire the current indoor average use temperature T n , The average indoor use temperature T in the last detection cycle n-1 , the current indoor average target temperature T nm , the current control water temperature T of the heat pump system k and the detection period t; the calculation unit 200 is used to pass the function ΔT n =T n -T n-1 Calculate the room temperature change value △T during the detection period n , through the function ΔT nm =T n -T nm Calculate the indoor temperature deviation value △T in the detection period nm and by the function T km =T k +△T m1 +△T m2 Calculate the target control water temperature T of the heat pump system in the detection period km ; The selection unit...

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Abstract

The invention belongs to the technical field of heat pumps, and discloses a control method and a water temperature control device for a two-connected heat pump system. The control method of the two-connected heat pump system includes the following steps: obtaining the required water temperature parameters and the detection cycle; calculating the room temperature change value within the detection cycle and the indoor temperature deviation value within the detection cycle according to the function defined in the control method; The room temperature change value within the detection period and the indoor temperature deviation value within the detection period determine the relevant parameters in the target control water temperature function of the heat pump system; determine the target control water temperature function of the heat pump system, and calculate the target control water temperature function of the heat pump system to obtain the temperature within the detection period The heat pump system aims to control the water temperature. Through the control method of the two-connected heat pump system, the two-connected heat pump unit can establish a linkage relationship with the control of indoor equipment, have the ability to automatically adjust the set water temperature according to indoor load changes, and reduce the number of times users manually adjust the two-connected heat pump unit.

Description

technical field [0001] The invention relates to the technical field of heat pumps, in particular to a control method and a water temperature control device of a dual heat pump system. Background technique [0002] At present, the existing two-unit heat pump units, including air source heat pump air conditioners, ground source heat pumps, water source heat pumps, etc. target control, but only for the approach of the set target value to control the start, stop and energy adjustment of the unit, lack of Linkage to indoor load changes at the user end. [0003] Due to unreasonable water temperature setting selection, it will lead to indoor temperature fluctuations and unnecessary energy loss. If it is necessary to maintain a certain degree of indoor comfort for a long time, the user is required to manually adjust the set water temperature of the two-stage heat pump unit, so that the user needs to adjust both the indoor temperature setting and the water temperature setting of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/46F24F11/64F24F11/70
CPCF24F11/46F24F11/64F24F11/70
Inventor 赵密升蔡志峰李建国李骇浪
Owner GUANGDONG NEW ENERGY TECH DEV
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