Heating Device with Bypass Flow Path to Reduce Pressure Loss
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Solution Overview
Problem
Existing heating devices experience significant pressure loss and increased power consumption during the heat radiation mode of operation due to the return flow of hot water through the heating heat exchanger, which is not energy-efficient.
Innovation Solution
A heating device with a controller that alternates between two operation modes: one where the heating medium bypasses the heat storage tank to flow through the air-heating heat exchanger and another where it flows through both the heat storage tank and air-heating heat exchanger, reducing pressure loss and maintaining heating capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heating medium flows through the heating heat exchanger during heat radiation mode, then the heating function is maintained, but the pressure loss increases significantly causing higher power consumption
Solution Approach 1:
The patent implements dynamic switching between two operational modes: a heat storage mode where the heating medium flows through both the heating heat exchanger and heat storage tank, and a heat radiation mode where the heating medium bypasses the heating heat exchanger and flows only through the heat storage tank and air-heating heat exchanger. This dynamic configuration change resolves the contradiction by adapting the flow path to the current operational requirement, eliminating unnecessary pressure loss during heat radiation while maintaining heating function.
Solution Approach 2:
The circulation circuit is segmented into multiple flow paths with independent control: one path through the heating heat exchanger and heat storage tank, and another bypass path through only the heat storage tank and air-heating heat exchanger. This segmentation allows selective activation of flow paths based on operational mode, enabling the system to avoid the high-pressure-loss path during heat radiation mode while maintaining heating functionality.
2Reliability
If the heating medium flows through both the heat storage tank and air-heating heat exchanger, then heat storage and heating are achieved, but the pressure loss and power consumption increase
Solution Approach 1:
The system dynamically adjusts the flow path configuration based on operational mode. During heat storage mode, the heating medium flows through both the heating heat exchanger and heat storage tank to maximize heat storage capacity. During heat radiation mode, the system switches to a bypass configuration where the heating medium flows only through the heat storage tank and air-heating heat exchanger, reducing pressure loss while maintaining heating capacity through the stored hot water.
Solution Approach 2:
The patent changes the flow path parameters (which components the heating medium passes through) based on the operational mode. By switching between different flow path configurations, the system optimizes the balance between heat storage/heating capacity and pressure loss, achieving high heating capacity during heat storage mode and low pressure loss during heat radiation mode.
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
This solution reduces energy consumption by minimizing pressure loss and maintaining a high heating capacity, allowing for efficient storage and use of heat in the heat storage tank while reducing unnecessary heat dissipation.
Implementation Method 1
a heating heat exchanger (31)... the water transferred to the pump is heated by the refrigerant of the heating heat exchanger
Implementation Method 2
the hot water of the heat storage tank flows through the air-heating heat exchanger (51) and is used for heating the room air
Data Source
Figure 1
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AI summary
Disclosed herein is a heating device including a controller (90) configured to switch operation modes of the heating device from a first mode to a second mode, or vice versa. The first mode of operation includes an operation of allowing, while a heat source unit (20) is running, a heating medium heated by a heating heat exchanger (31) to flow through a heat storage tank (52) and then return to the heating heat exchanger (31). The second mode of operation includes an operation of allowing, while the heat source unit (20) is not running, the heating medium in the heat storage tank (52) to flow through an air-heating heat exchanger (51), be bypassed around the heating heat exchanger (31), and then return to the heat storage tank (52).