Device for supplying heating warm water for central heating and district heating and control method
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Solution Overview
Problem
Conventional central and district heating systems with a two-pipeline type configuration restrict concurrent usage of heating and warm water, leading to interruptions in heating when warm water is used.
Innovation Solution
A device with a heating water supply tube, a hot water supply tube, and a controller that adjusts flow rates and heat distribution to allow concurrent heating and warm water supply by optimizing the distribution ratio between heating and hot water heat exchangers, using flow rate and temperature sensors to calculate and manage heat usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a two-pipeline type configuration is used to reduce costs and simplify maintenance, then device complexity and maintenance costs are reduced, but concurrent usage of heating and warm water is restricted
Solution Approach 1:
The patent segments the heating water supply by introducing a branch line that separates the flow path into two independent circuits: one for heating (through the heating heat exchanger) and one for warm water (through the hot water heat exchanger). This segmentation allows both functions to operate simultaneously without interfering with each other, resolving the contradiction between simplified two-pipeline configuration and concurrent usage capability.
Solution Approach 2:
The heating water supply tube is designed to serve multiple functions: it supplies heating water to both the heating heat exchanger and the hot water heat exchanger. This multi-functionality allows the single heating water source to simultaneously support both heating and warm water generation, enabling concurrent usage while maintaining the simplified two-pipeline structure.
2Productivity
If heating water is supplied to the heat exchanger for warm water production, then warm water is provided, but heating is interrupted
Solution Approach 1:
The patent segments the heating water flow into two separate paths using a branch line and control valves. One path directs heating water to the heating heat exchanger for space heating, while the other path directs it to the hot water heat exchanger for warm water production. This segmentation ensures that activating one function does not necessarily interrupt the other, as both can receive heating water simultaneously through their respective independent paths.
Solution Approach 2:
The patent employs dynamic control through opening/closing valves that can adjust the flow distribution of heating water in real-time. When both heating and warm water are needed, the controller dynamically opens both the heating valve and the hot water valve to allow simultaneous operation. This dynamic adjustment capability ensures reliable continuous heating while enabling warm water supply when demanded.
3Power
If flow rate of heating water is increased to meet heating demand, then heating performance is improved, but warm water temperature may be affected
Solution Approach 1:
The patent employs dynamic control through independently adjustable valves for both the heating circuit and the hot water circuit. The controller can dynamically adjust the flow rate of heating water to each heat exchanger based on real-time demands. When heating demand is high, the heating valve opens wider to increase heating capacity, while the hot water valve adjusts to maintain appropriate warm water temperature, ensuring both parameters are optimized simultaneously.
Solution Approach 2:
The patent changes the flow rate parameter of heating water independently for each circuit based on demand conditions. By adjusting the valve openings, the system can vary the flow rate to the heating heat exchanger to maximize heating power, while simultaneously adjusting the flow rate to the hot water heat exchanger to maintain optimal warm water temperature, thus resolving the contradiction between heating power and warm water temperature.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous heating supply while providing warm water without interruptions, optimizing heat distribution to meet user-set temperatures for both heating and warm water demands.
Implementation Method 1
heating water, which is supplied through the hot water supply tube (130), is undergone heat exchange with direct water in the hot water heat exchanger (310)
Implementation Method 2
heating water, which is undergone heat exchange in the places (102) that require heating
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a device for supplying heating warm water for central heating and district heating and a control method, the device comprising: a heating water supply tube for supplying heating water to places that require heating; a heating recovery tube for recovering heating water, which has undergone heat exchange in the places that require heating, to a heat source supply unit; a hot water supply tube for supplying heating water to a hot water heat exchanger; a hot water recovery tube for causing heating water, which has undergone heat exchange with direct water in the hot water heat exchanger, to flow to the heating recovery tube; a warm water supply tube for causing direct water, which has been supplied through a direct water supply tube, to be supplied to the user after heat exchange with heating water, which has been supplied through the hot water supply tube, in the hot water heat exchanger; a heating-side flow rate adjustment valve for adjusting the flow rate of heating water, which is supplied through the heating water supply tube to the places that require heating; a warm water-side flow rate adjustment valve for adjusting the flow rate of heating water, which is supplied through the hot water supply tube to the hot water heat exchanger; and a control unit for controlling the degree of openness of the heating-side flow rate adjustment valve and that of the warm water-side flow rate adjustment valve such that the amount of heat to supply heating is supplied to the places that require heating, the amount of heat to supply heating corresponding to the entire amount of supplied heat, which is supplied through the heating water supply tube, minus the amount of heat consumed through warm water that undergoes heat exchange in the hot water heat exchanger, when warm water is used while heating is supplied.