Duplex Calorimeter Branch Pipe Flow Measurement
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Solution Overview
Problem
Conventional calorimeters are unable to measure duplex calorific values in thermal energy networks with duplex heat transactions, as they are designed for one-way heat supply and require separate installations for each direction of heat flow.
Innovation Solution
A duplex calorimeter is designed with branch pipes and flow/temperature measuring parts to measure heat energy flow rates and temperatures in both directions, allowing for the calculation of calorific values between demand sides, and includes valve and control systems to manage flow and prevent measurement errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional calorimeter is installed to measure one-way calorific value, then the measurement structure is simple, but it cannot measure duplex calorific value in duplex heat transaction systems
Solution Approach 1:
The calorimeter is divided into multiple independent measurement channels: a first flow rate measuring part for measuring flow rate in a first direction, and a second flow rate measuring part for measuring flow rate in a second direction. Each channel can independently measure flow rate and temperature, enabling the system to handle duplex heat transactions while maintaining clear separation of measurement functions.
Solution Approach 2:
The calorimeter is designed to perform multiple measurement functions within a single device: it can measure calorific value in the first direction, calorific value in the second direction, and also measure flow rate and temperature for both directions simultaneously. This multi-functionality allows one device to replace what would traditionally require separate calorimeters for each direction.
2Measurement precision
If separate calorimeters are provided for each direction to measure duplex calorific value, then measurement precision is improved, but device complexity and installation cost increase
Solution Approach 1:
The patent merges the measurement functions for both directions into a single calorimeter device. The first flow rate measuring part and second flow rate measuring part are integrated into one unified structure, as are the temperature measuring parts. This consolidation achieves the measurement precision of separate devices while reducing the total number of components and installation complexity.
3Productivity
If flow rate and temperature are measured in both directions simultaneously, then duplex calorific value can be calculated, but the measuring system becomes more complex
Solution Approach 1:
The measuring system is segmented into independent first and second measurement channels, each capable of simultaneously measuring flow rate and temperature in their respective directions. This segmentation allows parallel measurement operations without creating complex interactions between directions, maintaining measurement efficiency while keeping each channel's structure relatively simple.
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 precise measurement of duplex calorific values using a single device, reducing installation complexity and ensuring accurate energy accounting in duplex heat transaction systems.
Implementation Method 1
a first flow rate measuring part disposed at the first branch pipe so as to measure a flow rate of the heat energy passing through the first branch pipe; a second flow rate measuring part disposed at the second branch pipe so as to measure a flow rate of the heat energy passing through the second branch pipe
Implementation Method 2
a temperature measuring part measuring a temperature of the heat energy in the first branch pipe or the second branch pipe
Implementation Method 3
a calculating part calculating the calorific value based on the flow rate measured by the first flow rate measuring part or the second flow rate measuring part and the temperature measured by the temperature measuring part
Data Source
AI summary
The duplex calorimeter, connected between a first and a second demand sides to measure a caloric heat energy between the demand sides, includes a first pipe connected to the first demand side, a second pipe connected to the second demand side, first and second branch pipes, branched into two directions between the first pipe and the second pipe, a first flow rate measuring part measuring a flow rate of the heat energy in the first branch pipe, a second flow rate measuring part measuring a flow rate of the heat energy in the second branch pipe, a temperature measuring part measuring a temperature of the heat energy in either branch pipe, and a calculating part calculating the caloric value based on the flow rate measured by the first flow rate measuring part or the second flow rate measuring part and the temperature measured by the temperature measuring part.