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A constant-temperature difference and variable-flow hydraulic equilibrium adjusting method and system

A technology of hydraulic balance and adjustment method, applied in heating system, high-efficiency adjustment technology, heating method, etc., can solve the problems of thermal imbalance, hydraulic imbalance of heating system, failure to meet user indoor heating standards, etc., to ensure heating effect, reduce energy consumption in transmission and distribution, and achieve good energy-saving effect

Active Publication Date: 2017-05-03
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the existing heating system and heating method cannot guarantee the heat required by each loop, it is difficult to reasonably distribute the user's indoor temperature, and the heating standard of the user's room cannot be reached, and the heating system is due to The water dynamic balance problem caused by the change of its own flow and pressure, which leads to the problem of hydraulic imbalance and thermal imbalance of the heating system

Method used

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  • A constant-temperature difference and variable-flow hydraulic equilibrium adjusting method and system
  • A constant-temperature difference and variable-flow hydraulic equilibrium adjusting method and system

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Embodiment 1

[0034] Such as figure 1 As shown, the hydraulic balance adjustment method of isothermal difference and variable flow provided by the embodiment of the present invention includes the following steps:

[0035] S1. Data collection: the indoor temperature t of users on each loop s , The water supply temperature t of the total loop g , return water temperature t of each loop i and return water temperature t of the total loop h Collect the data parameters of the pressure difference Δp between the water supply pipe and the return pipe of the total loop;

[0036] S2. Data processing: calculate the room temperature deviation Δt of users on each loop s , supply and return water temperature difference Δt of the total loop and supply and return water temperature difference Δt of each loop i ;

[0037] S3, analysis and comparison: analyze and compare the data parameters collected in step S1 and the data results obtained in step S2, and obtain the required control amount of the total ...

Embodiment 2

[0048] Such as figure 2 As shown, the present invention also provides a hydraulic balance regulating system with constant temperature difference and variable flow rate, including a total loop 3 and several loops 4, several loops 4 are arranged in parallel with the total loop 3 respectively, and each loop 4 There are electric control valves 5 and water temperature sensors 1 on the loop 4, room temperature sensors 2 are installed in the room of the user 6 on the loop 4, water temperature sensors 1 are installed on the water supply pipe and the return pipe of the total loop 3, and the The water supply pipe is connected to one end of the differential pressure sensor 7, and the other end of the differential pressure sensor 7 is connected to the return pipe of the total loop 3; it also includes a control device, one end of which is connected to the electric regulating valve 5, and the other end is connected to the water temperature sensor 1, The room temperature sensor 2 and the di...

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Abstract

The invention relates to the technical field of heat supply adjustment and in particular relates to a constant-temperature difference and variable-flow hydraulic equilibrium adjusting method. The method comprises the steps of: S1, collecting the indoor temperature ts of users on each loop, the water supply temperature tg of a total loop, the water return temperature ti of each loop and the water return temperature th of the total loop and collecting the data parameters of the pressure difference delta p between a water supply pipe and a water return pipe of the total loop; S2, calculating the indoor temperature deviation delta ts of the users on each loop, the water supply and water return temperature difference delta t of the total loop and the water supply and water return temperature difference delta ti of each loop; S3, performing analytic comparison on the data parameters collected in the step S1 and the data results obtained in the S2 to obtained the required control quantity for the water supply quantity of the total loop and the control quantity for the water supply quantity of each loop; S4, adjusting and controlling the water supply quantity of the total loop according to the control quantity for the water supply quantity of the total loop obtained in the S3 and adjusting and controlling the water supply quantity of each loop according to the control quantity for the water supply quantity of each loop obtained in the S3. The water supply quantities can be controlled in real time by using a dynamic adjusting method, so that hydraulic dynamic equilibrium and thermodynamic equilibrium are achieved.

Description

technical field [0001] The invention relates to the technical field of heat supply adjustment, in particular to a hydraulic balance adjustment method and system with constant temperature difference and variable flow. Background technique [0002] At present, with the further improvement of energy-saving requirements, room temperature compliance requirements and refined heating management requirements, the demand for scientific and rational adjustment of the hydraulic balance of the heating network is becoming more and more intense. The user's indoor temperature of 18±2℃ is the standard for heating work. The heat provided by the heating system to the user's room is used as the heat load. The heating system achieves the predetermined user's heat load by changing the loop water supply. Due to the difference in water quality, the water supply volume is not reasonably distributed among the users according to the design requirements, and the indoor temperature of some users does n...

Claims

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Application Information

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IPC IPC(8): F24D19/10
CPCY02B30/70
Inventor 李德英张帅王君可胡文举史永征
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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