Superhigh temperature heat pump system and method capable of preparing boiling water not lower than 100° C
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Solution Overview
Problem
Existing heat pump water heaters cannot directly produce boiling water above 85°C, requiring additional electrical heating to achieve this temperature, limiting their energy conservation and application expansion.
Innovation Solution
A superhigh temperature heat pump system utilizing a compressor, primary and secondary condensers/evaporators, and multiple water pumps to achieve a thermal cycle that raises the temperature of water to at least 100°C, leveraging compressor exhaust heat enthalpy and minimum entropy gain principles for efficient heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an ordinary heat pump water heater is used, then energy conservation is achieved through heat transfer, but the water temperature cannot exceed 85°C requiring additional electrical heating
Solution Approach 1:
The condenser is divided into two independent sections: a first condenser section for producing hot water at 40-85°C, and a second condenser section for producing boiling water at 95-105°C. This segmentation allows each section to operate at optimized temperature levels, enabling the system to deliver both hot water and boiling water simultaneously without requiring additional electrical heating, thus resolving the temperature limitation while maintaining energy efficiency.
2Adaptability or versatility
If the heat pump system is modified to produce boiling water, then the application scope expands to kitchens and boiling water rooms, but the device complexity increases
Solution Approach 1:
The system merges the functions of producing both hot water and boiling water into a single heat pump unit by integrating two condenser sections that operate simultaneously. The first condenser section delivers hot water to sanitary hot water applications, while the second condenser section delivers boiling water to kitchen and boiling water room applications. This merging approach expands application scope without requiring separate heating devices, and the integrated design keeps the overall system structure manageable.
Solution Approach 2:
The heat pump water heater achieves multi-functionality by simultaneously providing both hot water (40-85°C) and boiling water (95-105°C) through its dual condenser section configuration. This allows a single device to serve multiple purposes: sanitary hot water supply, kitchen cooking water, and boiling water room supply, thereby expanding application scope while maintaining a unified system architecture rather than requiring multiple separate devices.
3Loss of energy
If a single condenser is used, then the system structure is simple, but the thermal efficiency is insufficient for high temperature water production
Solution Approach 1:
The condenser is segmented into two independent sections with separate water inlets and outlets, allowing each section to operate at its optimal temperature range. The first condenser section operates at lower temperatures (40-85°C) with higher heat transfer efficiency, while the second condenser section operates at higher temperatures (95-105°C). This segmentation prevents thermal losses that would occur in a single condenser attempting to produce both temperature levels, thereby improving overall thermal efficiency while maintaining a relatively simple integrated structure.
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 the direct production of boiling water above 100°C, maximizing energy utilization and expanding the heat pump's application in kitchens and sanitary hot water provision while reducing energy consumption.
Implementation Method 1
a working medium from a compressor is controlled to be not lower than 110°C
Implementation Method 2
The working medium sequentially enters a primary condenser/cooler and a secondary condenser/cooler for heat release
Implementation Method 3
a primary condenser/cooler and a secondary condenser/cooler for heat release
Implementation Method 4
is then throttled and cooled by an expansion mechanism
Implementation Method 5
enters the primary evaporator and the secondary evaporator for heat absorption
Implementation Method 6
for heat absorption
Data Source
AI summary
Provided are a superhigh temperature heat pump system and method capable of preparing boiling water not lower than 100° C., belonging to the technical field of heat pumps. The system comprises a compressor (1), primary and secondary evaporators (5, 6), an expansion mechanism (4), primary and secondary condenser/coolers (2, 3), water pumps (7, 8, 13), water tanks (9, 10), and a valve (14). The solution is based on the compressor exhaust heat enthalpy utilization minimum entropy gain principles/technology, and utilizes exhaust heat enthalpy sensible heat and latent heat in stages. The present invention has an output water temperature higher than 100° C., expands the functions of current heat pump water heaters which can only prepare hot water lower than 100° C., and can replace electric water heaters, save energy and increase energy utilization rates.