Heat Pump System with Six-Way Valve for Multi-Mode Operation
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Solution Overview
Problem
Conventional heat pump systems have limited operating modes, which restrict their ability to provide multiple functions such as air conditioner cooling, air conditioner heating, hot water heating, and simultaneous cooling and hot water production.
Innovation Solution
The heat pump system incorporates a six-way valve, three heat exchangers, and three throttle devices, allowing for multiple operating modes by controlling the flow of refrigerant through various paths and valves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional heat pump system with a four-way valve and two heat exchangers is used, then the system structure is simple, but the operating modes are limited
Solution Approach 1:
The system divides the heat exchangers into three separate circulation paths (first, second, and third circulation paths), each with its own throttle device. This segmentation allows independent control of refrigerant flow to different heat exchangers, enabling multiple operating modes including air conditioning cooling, air conditioning heating, hot water heating, and simultaneous hot water production with cooling.
Solution Approach 2:
The six-way valve is designed with six ports and multiple switching states to universally connect the compressor to different combinations of heat exchangers. The valve can switch between at least three different connection states, allowing the same system structure to perform multiple functions: cooling, heating, hot water production, and combined operations.
2Adaptability or versatility
If multiple heat exchangers and a six-way valve are added to enable multiple operating modes, then the versatility of the system is improved, but the pipeline complexity increases
Solution Approach 1:
The system merges the control functions of multiple valves into a single six-way valve that integrates the functionality of what would traditionally require separate four-way and three-way valves. The parallel circulation paths are merged at a common path converging point, simplifying the overall pipeline architecture while maintaining the capability for multiple operating modes.
Solution Approach 2:
The six-way valve provides dynamic switching capability with at least three different connection states, allowing the system to adapt its refrigerant flow paths in real-time. This dynamic reconfiguration enables the system to switch between different operating modes without requiring complex manual valve arrangements or multiple static valve configurations.
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 configuration enables the heat pump system to operate in various modes, including separate cooling, heating, hot water production, and combined cooling and hot water production, with simple pipeline connections and control logic.
Implementation Method 1
a compressor (108), a first heat exchanger (101), a second heat exchanger (102), a third heat exchanger (103)
Implementation Method 2
a first heat exchanger (101), a second heat exchanger (102), a third heat exchanger (103)
Data Source
AI summary
A heat pump system is provided. The heat pump system comprises a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger and a six-way valve. The compressor comprises a fluid suction port and a fluid discharge port. The first heat exchanger is arranged in a first circulation path, the second heat exchanger is arranged in a second circulation path, and the third heat exchanger is arranged in a third circulation path, wherein the first circulation path, the second circulation path and the third circulation path are parallel paths. A first end of the first circulation path, a first end of the second circulation path and a first end of the third circulation path are connected to the six-way valve and are in controllable communication with the fluid suction port and the fluid discharge port of the compressor by means of the six-way valve. A second end of the first circulation path, a second end of the second circulation path and a second end of the third circulation path are connected to a common path converging point. The components of the heat pump system in the present application have simple pipelines, have a high degree of integration, are not difficult to mount, and have a small pressure drop during fluid suction and discharge, and the control logic therefor is simple.