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Heating load stage quality regulation method

A technology of quality adjustment and adjustment method, which can be applied to the details of space heating and ventilation, household heating, heating methods, etc.

Active Publication Date: 2011-04-06
HARBIN INST OF TECH
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Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of high energy consumption in transmission in the traditional quality adjustment method of the heating network and the imbalance of the heating network that is prone to occur in the traditional quantity adjustment, and to provide a heating load distribution system that meets the adjustment requirements of users and has low energy consumption. Phase Quality Adjustment Method

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specific Embodiment approach 1

[0066] Specific implementation mode one: as figure 1 and 2 As shown, the specific process of the stage-by-stage quality adjustment method for heating load described in this embodiment is:

[0067] Step 1. Calculate the outdoor critical temperature t w0 , the heating is divided into three regulation stages:

[0068] According to the outdoor critical temperature t w0 The entire heating period of the heating system is divided into three adjustment stages according to the different heating loads: the initial stage, the middle stage and the final stage; the outdoor temperature in the early stage and the final stage is greater than the outdoor critical temperature t w0 , while the mid-term outdoor temperature is less than the outdoor critical temperature t w0 ;

[0069] Using formula (1), make the water supply temperature equal to the design water supply temperature, ie t g =t' g , where (which is is a fixed value), then the only unknown quantity can be calculated Then ...

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Abstract

The invention discloses a heating load stage quality regulation method, which relates to a regulation method of a hot water heating system and belongs to the technical field of heating regulation. The invention aims to solve the technical problems of high delivery energy consumption, easily-occurring heat supply network imbalance of traditional quantity regulation and the like of the traditional quality regulation method of a heat supply network, and provide a heating load stage quality regulation method capable of meeting the regulation requirements of users and ensuring relatively low energy consumption. The method mainly comprises the following steps: calculating an outdoor critical temperature and dividing the heating into three regulation stages, namely, a stage of gradually increasing a water supply temperature according to the heating load and maintaining a minimum operation flow, a stage of performing quantity regulation, keeping the water supply temperature at a designed value and changing the system operation flow according to a return water temperature, and a stage of quality regulation, wherein when the heating load is gradually reduced and the outdoor temperature is higher than the outdoor critical temperature, the heating enters the last phase, the system flow is reduced to the minimum operation flow and the system operation mode is changed back to quality regulation till the end of the heating period. The method of the invention has an obvious energy saving effect.

Description

technical field [0001] The invention relates to a method for adjusting a hot water heating system, and relates to the technical field of heat supply adjustment. Background technique [0002] At present, the traditional heating regulation technologies mainly include: [0003] (1) Quality adjustment. When performing quality adjustment, only the water supply temperature of the heating system is changed, while the user's circulating water volume remains unchanged. At the same time, the energy consumption of the circulating water pump is high, which is not conducive to energy saving. [0004] (2) Quantity adjustment. When adjusting the volume, only the network flow of the heating system is changed, while the supply water temperature remains unchanged. When using this adjustment method, when the flow in the network decreases to a certain value, the flow state of the water in the pipeline will deviate from the resistance square area, causing the flow distribution ratio to chang...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D19/10
Inventor 姜永成方修睦郑瑞芸吴洁清
Owner HARBIN INST OF TECH
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