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Water temperature control method of heat pump system, and heat pump system

A water temperature control method and heat pump system technology, which are applied in temperature control, heating system, hot water central heating system, etc., can solve problems such as the fluctuation of the outlet water temperature, and achieve the effect of dynamic adjustment of the outlet water temperature and constant outlet water temperature.

Inactive Publication Date: 2020-02-14
GUANGDONG PHNIX ECO ENERGY SOLUTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a water temperature control method of a heat pump system and a heat pump system to solve the technical problem that the outlet water temperature of the existing primary pump system equipment fluctuates due to the change of the terminal load. The invention can realize the self-adaptation of the equipment to the change of the terminal load , realize the dynamic adjustment of the outlet water temperature after the terminal changes to keep the water temperature constant and improve the performance of the primary heat pump system

Method used

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  • Water temperature control method of heat pump system, and heat pump system
  • Water temperature control method of heat pump system, and heat pump system
  • Water temperature control method of heat pump system, and heat pump system

Examples

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Effect test

no. 1 example

[0045] See figure 1 , the heat pump system includes several terminals and several equipment terminals connected by water supply pipelines. Water pumps are installed on the water supply pipelines; the water temperature monitoring sensor is placed in the water supply pipelines, and the centralized controller detects the outlet water temperature of the main pipeline in real time; machine heat pump.

[0046] See figure 2 , based on the heat pump system, the first embodiment of the present invention provides a water temperature control method for the heat pump system, the control method at least includes the following steps:

[0047] S101, detecting the current outlet water temperature of the device in real time, and obtaining the current outlet water temperature difference between the current outlet water temperature and the set outlet water temperature;

[0048] In this embodiment, the current outlet water temperature of the device is collected by the water temperature monitor...

no. 2 example

[0068] Based on the first embodiment of the present invention, a water temperature control method for a heat pump system proposed in the second embodiment of the present invention specifically includes the following steps:

[0069] Step S1, before the compressor is started, collect the current outlet water temperature of the device through the water temperature monitoring sensor, obtain the set outlet water temperature from the centralized controller, and calculate the current outlet water temperature difference ΔT1 according to the set outlet water temperature and the current outlet water temperature;

[0070] Calculate the A value (A1) according to the current outlet water temperature difference, at this time the C value (C1) is 0;

[0071] After calculating the current compressor energy level gear EL (EL1), look up table 1 to find the corresponding current compressor frequency (F1), thereby setting the compressor frequency at the equipment end as F1, and controlling the comp...

no. 3 example

[0087] Corresponding to the water temperature control method of the above-mentioned heat pump system, the third embodiment of the present invention provides a heat pump system. The heat pump system includes a centralized controller, an equipment end, an end, and a water pump arranged on the pipeline between the equipment end and the end. Heat pump with inverter compressor; centralized controller for:

[0088] Real-time detection of the current outlet water temperature at the device end, and obtain the current outlet water temperature difference between the current outlet water temperature and the set outlet water temperature;

[0089] Determine the current compressor energy level gear according to the current outlet water temperature difference, and obtain the current compressor frequency corresponding to the current compressor energy level gear in the preset energy level gear table, and control the compression of the inverter compressor heat pump with the current compressor fr...

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Abstract

The invention discloses a water temperature control method of a heat pump system, and the heat pump system. The water temperature control method of the heat pump system comprises the steps that the current outlet water temperature of an equipment end is detected in real time, and a current outlet water temperature difference between the current outlet water temperature and a set outlet water temperature is acquired; and a current compressor energy level is determined according to the current outlet water temperature difference, a current compressor frequency corresponding to the current compressor energy level is acquired from a preset energy level table, and a compressor of the variable-frequency compressor heat pump is controlled according to the current compressor frequency. By the adoption of the water temperature control method of the heat pump system, and the heat pump system, equipment can adapt to load changes at the tail end, and the outlet water temperature can be dynamicallyadjusted to keep the water temperature constant when a change happens to the tail end, so that the performance of a primary heat pump system is improved.

Description

technical field [0001] The invention relates to the technical field of heat pumps, in particular to a water temperature control method of a heat pump system and the heat pump system. Background technique [0002] As the advantages of low-temperature heat pumps in the field of commercial heating become more and more prominent, commercial heating heat pumps are becoming more and more popular, and more energy-saving and more comfortable has become the pursuit of the industry. At present, heat pump heating projects mostly use the primary pump system or the secondary pump system according to the actual site conditions, and the primary pump system is compared with the secondary pump system because there is no secondary pump and energy storage tank, which saves the operating cost of the secondary pump and engineering. There are obvious advantages in installation costs. However, the inventors of the present invention found in research that since the primary pump system uses a fixed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/18F24D19/10
CPCF24D3/18F24D19/1039F24H15/219F24H15/175F24H15/38F24D19/1054F24D19/1072F24D2200/123F24D2220/042F25B49/022F25B30/02F25B2339/047F25B2500/19F25B2700/21161F25B2600/0253G05D23/1919Y02B30/70Y02A40/963
Inventor 刘志力吴思朗叶景发李操炫
Owner GUANGDONG PHNIX ECO ENERGY SOLUTION
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