A heat pump EVI sky fluorine ground water intelligent water temperature control method

Abstract

The application discloses a kind of control method of heat pump EVI sky fluorine ground water intelligent water temperature, when ground heating system starts heating, ground heating system is according to the set target water temperature operation, after running time t, every interval T is according to the temperature change of the room that ground heating is in the state of starting to correct the set target water temperature.This application is loaded by the temperature difference of the set temperature of each room and the current temperature of room and the current outdoor environment temperature to set target water temperature operation, realizes automatic adjustment after 2 hours, by adjusting outlet water temperature, each room ground heating can be kept around the set temperature, floor will not be too hot, outdoor compressor, water pump and other devices do not need to start and stop frequently, and by suitable set target water temperature operation, to achieve the purpose of energy saving and comfort.

Description

Technical Field

[0001] This invention relates to a method for controlling the intelligent water temperature of a heat pump EVI (Electronic Fluorine Intake) system. Background Technology

[0002] The Tianfudishui system is a dual-supply system, which uses a "fluorine system" for cooling or heating in the central air conditioning system at the top, and a "water system" for heating in the underfloor heating system at the bottom. In summer, the air conditioning system is turned on for cooling, and in winter, both systems can be turned on at the same time for heating, achieving efficient temperature rise.

[0003] Because it uses a "fluorine system" air conditioning system with cold air blowing, the refrigerant directly exchanges heat with the air, which quickly achieves a cooling effect; the heating effect is also very fast because the dual system can heat at the same time.

[0004] Currently, EVI multi-split air conditioning systems do not consider room temperature when using underfloor heating in winter; they only control the water temperature. When the water temperature is set too high, even if the room temperature meets the heating requirements, the unit continues to run due to the high water temperature setting, resulting in ineffective operation, increased electricity costs, and failure to achieve energy-saving goals. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a method for controlling the intelligent water temperature of heat pump EVI (Electric Fluorine-to-Water) systems, effectively solving the problems mentioned in the background art.

[0006] The technical solution adopted in this invention is:

[0007] A method for controlling the intelligent water temperature of a heat pump EVI (Electronic Refrigerant Ionization) system involves the following steps: When the underfloor heating system is started for heating, it operates according to a set target water temperature. After a running time t, the set target water temperature is adjusted every cycle T based on the temperature changes in the rooms where the underfloor heating is on. The maximum time for the underfloor heating system to reach its target temperature is preset to Hmax, and the maximum expected time for each room to reach its target temperature is H.

[0008] Step 1) If H>Hmax, the target water temperature will be increased by 1℃; if H>2Hmax, the target water temperature will be increased by 2℃.

[0009] Step 2) If 0.5Hmax≤H≤Hmax, then set the target water temperature to remain unchanged;

[0010] Step 3) If 0.3Hmax≤H<0.5Hmax, the target water temperature will be reduced by 1℃; if H<0.3Hmax, the target water temperature will be reduced by 2℃.

[0011] Step 4) Repeat steps 1), 2), and 3).

[0012] Preferably, the estimated time for each room to reach its target temperature is calculated by the underfloor heating system based on the temperature change value ΔT of each room within a set time period Δt prior to the current time. The specific calculation formula is as follows: Where T 设定温度 The target room temperature set by the user, T 当前室温 This represents the current room temperature.

[0013] Preferably, t is 120 minutes and T is 30 minutes.

[0014] Preferably, during the execution of steps 1), 2), 3), and 4), if the underfloor heating system is defrosting or switching the four-way valve return oil operation, the set target water temperature is not corrected.

[0015] Preferably, during the execution of steps 1), 2), 3), and 4), if the T of a certain room... 设定温度 -T 当前室温 If the temperature is less than 0.5℃, the room will no longer be included in the correction of the target water temperature.

[0016] Preferably, during the execution of steps 1), 2), 3), and 4), if a new room turns on its underfloor heating, the count starts from the correction cycle T at the time of activation, and the system participates in the correction of the target water temperature in the third cycle.

[0017] Preferably, if the underfloor heating in a certain room is turned off or malfunctions during the execution of steps 1), 2), 3), and 4), that room will no longer participate in the correction of the set target water temperature.

[0018] Preferably, the specific value of the set target water temperature shall be determined according to the following table:

[0019]

[0020] The temperature difference between each room participating in the target water temperature correction is T. 设定温度 -T 当前室温 The maximum temperature difference is T 设定温度 -T 当前室温 The maximum value is represented by the outer ring, which is the current outdoor ambient temperature.

[0021] This invention loads the set temperature of each room and the current room temperature, as well as the current outdoor ambient temperature, into the target water temperature and runs it automatically after 2 hours. By adjusting the outlet water temperature, the underfloor heating in each room can be kept near the set temperature, so that the floor will not get too hot. The outdoor compressor, water pump and other devices do not need to be started and stopped frequently. And by running at the appropriate target water temperature, the purpose of energy saving and comfort is achieved. Detailed Implementation

[0022] The present invention will be further described in detail below through specific embodiments.

[0023] This invention discloses a method for controlling the intelligent water temperature of a heat pump EVI (Electric Refrigerant Ion) system. When the underfloor heating system is started for heating, the system operates according to a set target water temperature. The specific value of the set target water temperature is determined according to the table below:

[0024]

[0025] The temperature difference between each room participating in the target water temperature correction is T. 设定温度 -T 当前室温 The maximum temperature difference is T 设定温度 -T 当前室温 The maximum value is given, with the outer ring representing the current outdoor ambient temperature. After 120 minutes of operation, the target water temperature is adjusted every 30 minutes based on the temperature changes in the rooms where the underfloor heating is on. The preset maximum temperature arrival time for the underfloor heating system is Hmax, which is set during unit installation based on the actual site conditions. The maximum estimated temperature arrival time for each room is H, calculated by the underfloor heating system based on the temperature change ΔT of each room within a set time period Δt prior to the current time. The specific calculation formula is as follows: Where T 设定温度 The target room temperature set by the user, T 当前室温 This represents the current room temperature.

[0026] Specifically, the steps include:

[0027] Step 1) If H>Hmax, the target water temperature will be increased by 1℃; if H>2Hmax, the target water temperature will be increased by 2℃.

[0028] Step 2) If 0.5Hmax≤H≤Hmax, then set the target water temperature to remain unchanged;

[0029] Step 3) If 0.3Hmax≤H<0.5Hmax, the target water temperature will be reduced by 1℃; if H<0.3Hmax, the target water temperature will be reduced by 2℃.

[0030] Step 4) Repeat steps 1), 2), and 3).

[0031] During the execution of steps 1), 2), 3), and 4), if the underfloor heating system is defrosting or switching the four-way valve return oil operation, the set target water temperature will not be corrected.

[0032] During the execution of steps 1), 2), 3), and 4), if T in a certain room...设定温度 -T 当前室温 If the temperature is less than 0.5℃, the room will no longer be included in the correction of the target water temperature.

[0033] During the execution of steps 1), 2), 3), and 4), if a new room turns on its underfloor heating, the count starts from the correction cycle T at the time of activation, and the system participates in the correction of the target water temperature in the third cycle.

[0034] If the underfloor heating in a room is turned off or malfunctions during the execution of steps 1), 2), 3), and 4), that room will no longer participate in the correction of the set target water temperature.

[0035] Finally, it should be noted that the above examples are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this invention should be considered within the scope of protection of this invention.

Claims

1. A method for controlling the intelligent water temperature of a heat pump EVI (Electronic Water Refractory) system, characterized in that, When the underfloor heating system is started to heat, it operates according to the set target water temperature. After a running time t, the set target water temperature is corrected every cycle T based on the temperature change of the room where the underfloor heating is on. The preset maximum time for the underfloor heating system to reach the desired temperature is Hmax, and the maximum expected time for each room to reach the desired temperature is H. The specific steps include: Step 1) If H>Hmax, the target water temperature will be increased by 1℃; if H>2Hmax, the target water temperature will be increased by 2℃. Step 2) If 0.5Hmax≤H≤Hmax, then set the target water temperature to remain unchanged; Step 3) If 0.3Hmax≤H<0.5Hmax, the target water temperature will be reduced by 1℃; if H<0.3Hmax, the target water temperature will be reduced by 2℃. Step 4) Repeat steps 1), 2), and 3); The estimated time for each room to reach its target temperature is calculated by the underfloor heating system based on the temperature change value ΔT of each room within a set time period Δt prior to the current time. The specific calculation formula is as follows: T 设定温度 The target room temperature set by the user, T 当前室温 This represents the current room temperature.

2. The method for controlling the intelligent water temperature of a heat pump EVI (Electronic Water Refrigeration) system according to claim 1, characterized in that, The t is 120 minutes, and the T is 30 minutes.

3. The method for controlling the intelligent water temperature of a heat pump EVI (Electronic Water Refractory) system according to claim 1, characterized in that, During the execution of steps 1), 2), 3), and 4), if the underfloor heating system is defrosting or switching the four-way valve return oil operation, the set target water temperature will not be corrected.

4. The method for controlling the intelligent water temperature of a heat pump EVI (Electronic Water Refractory) system according to claim 1, characterized in that, During the execution of steps 1), 2), 3), and 4), if T in a certain room... 设定温度 -T 当前室温 If the temperature is less than 0.5℃, the room will no longer be included in the correction of the target water temperature.

5. The method for controlling the intelligent water temperature of a heat pump EVI (Electronic Water Refractory) system according to claim 1, characterized in that, During the execution of steps 1), 2), 3), and 4), if a new room has its underfloor heating turned on, the count starts from the correction cycle T at the time of activation, and the system participates in the correction of the set target water temperature in the third cycle.

6. The method for controlling the intelligent water temperature of a heat pump EVI (Electronic Water Refractory) system according to claim 1, characterized in that, If the underfloor heating in a room is turned off or malfunctions during the execution of steps 1), 2), 3), and 4), that room will no longer participate in the correction of the set target water temperature.

7. The method for controlling the intelligent water temperature of a heat pump EVI (Electronic Water Refractory) system according to claim 1, characterized in that, The specific values ​​for the set target water temperature shall be determined according to the following table: ， The temperature difference between each room participating in the target water temperature correction is T. 设定温度 -T 当前室温 The maximum temperature difference is T 设定温度 -T 当前室温 The maximum value is represented by the outer ring, which is the current outdoor ambient temperature.

Images