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Heat source temperature reduction control center of medium-low temperature heating end system and operation method thereof

A control center and low-temperature technology, which is applied in hot water central heating systems, household heating, heating methods, etc., can solve the problem of large differences between heat sources and terminals, difficulty in supervision of user room terminal transformation, and difficulty in fully meeting the requirements of adjustments, etc. problem, to achieve the effect of simple structure, maximum efficiency and low correlation

Inactive Publication Date: 2018-10-02
NANJING KULANG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] 1. The structure of the water mixing center is relatively complex, the higher the control accuracy requirements, the higher the technical requirements of the water mixing center; and when the terminal load changes suddenly, the adjustment of the water mixing center lags behind;
[0014] 2. There is a large difference between the heat source and the terminal. On the surface, it is the need to achieve cooling operation, but in fact it is to achieve cooling operation while matching the high power output of the heat source with the low power operation of the terminal; and through mixing water It is difficult to fully meet the requirements by means of adjustment; specifically:
[0020] However, due to the fact that the demand exists objectively and it is difficult to supervise the modification of the terminal in the user's room, the behavior of the user to carry out the modification of the terminal without permission has been prohibited all the time.

Method used

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  • Heat source temperature reduction control center of medium-low temperature heating end system and operation method thereof
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  • Heat source temperature reduction control center of medium-low temperature heating end system and operation method thereof

Examples

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Effect test

Embodiment 1

[0048] This example introduces a terminal transformation case in a central heating system.

[0049] like image 3 Shown, is existing technical scheme:

[0050] It includes central heating heat source side system 1a, medium and low temperature heating terminal system 2, and water mixing center 9;

[0051]In the existing central heating system in my country, the temperature difference between the inlet and the return water of the central heating heat source side system 1a (user heat inlet) is usually 5-10K; and based on the mixed water mode, after the terminal is transformed into a medium and low temperature heating terminal system 2 , the heat source side can still only maintain a temperature difference of 5-10K between the inlet and the return water; the above is only an ideal state. Since the terminal system after normal transformation is more energy-efficient, the temperature difference between the inlet and the return water on the heat source side will be further reduced. ...

Embodiment 2

[0067] This example introduces a case of a medium and low temperature heating terminal system using a wall-hung boiler.

[0068] like Figure 5 Shown, is existing technical scheme:

[0069] Including wall-hung boiler 1b, medium and low temperature heating terminal system 2, and water mixing center 9;

[0070] Based on the water-mixing mode, the wall-hung boiler 1b will run in a partial load state for a long time, and the operating state is unstable. The water supply temperature of the wall-hung boiler is 80°C, and the return water temperature is 70°C; The supply water temperature of terminal system 2 is 50°C, and the return water temperature is 40°C.

[0071] The above is only an ideal state. The fluctuation of the terminal load will also affect the smooth operation of the wall-hung boiler, and the long-term operation at partial load is not only not conducive to energy saving, but also shortens the service life of the wall-hung boiler.

[0072] like Image 6 As shown, it i...

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Abstract

The invention provides a heat source temperature reduction control center of a medium-low temperature heating end system. The system comprises a heat source side system (1) and a medium-low temperature heating end system (2), wherein the heat source temperature reduction control center comprises a phase-change energy storage module (3) and an inner circulating pump (4). According to the heat source temperature reduction control center, a phase-change energy storage technique is used for replacing a water mixing center; the reasonable utilization of the heat source is improved; and the stable operation of the end system is achieved.

Description

technical field [0001] The invention relates to a heat source cooling control center and operation method for a medium and low temperature heating terminal system. The phase change energy storage technology is used to replace the water mixing center, which enhances the rational use of heat sources and realizes the stable operation of the terminal system. The technical field of thermal systems. Background technique [0002] For the water circulation type medium and low temperature heating terminal system with low water supply temperature, it mainly includes the following characteristics: [0003] 1. Due to the low water supply temperature (usually between 35-50°C), compared with the high-temperature radiator (radiator) system that requires a higher water supply temperature (greater than 60°C), the medium and low temperature systems have requirements for comprehensive heat dissipation capacity Higher, more stringent design and construction requirements; [0004] 2. It reduce...

Claims

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Application Information

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IPC IPC(8): F24D11/00F24D3/10F24D19/10
CPCF24D11/004F24D3/1091F24D19/1009
Inventor 朱杰
Owner NANJING KULANG ELECTRONICS