Adjustable Volume Ratio Screw Fluid Machine
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Solution Overview
Problem
Conventional screw expanders and compressors have fixed internal volume ratios, making it difficult to achieve optimal usage efficiency under different conditions and requiring on-site adjustments, which is inconvenient and inefficient.
Innovation Solution
A fluid machine design with double-segment screw rotors, a driving module, and slide members that allow for adjustable internal volume ratios by controlling the position of notches relative to the screw rotors, enabling flexible adjustment of the fluid machine's volume ratio through a control device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the internal volume ratio is fixed in conventional screw expanders or compressors, then the structure is simple and reliable, but the adaptability to different usage conditions deteriorates and optimal efficiency cannot be achieved
Solution Approach 1:
The patent applies the dynamics principle by making the internal volume ratio adjustable rather than fixed. The slide member can move along the screw rotor to change the position of the sealing line, thereby dynamically adjusting the internal volume ratio according to different usage conditions. This resolves the contradiction by enabling adaptability while maintaining relatively simple structural components.
Solution Approach 2:
The patent segments the internal volume into different sections by introducing a slide member with a sealing line that can move along the screw rotor. This segmentation allows independent adjustment of volume ratios in different chambers, improving adaptability to various usage conditions without requiring complete structural redesign.
2Productivity
If the internal volume ratio is fixed, then manufacturing and installation are straightforward, but on-site adjustments are required which increases loss of time and reduces productivity
Solution Approach 1:
The adjustable slide member allows the internal volume ratio to be changed dynamically without disassembling the machine. Operators can adjust the volume ratio by moving the slide member along the screw rotor, eliminating the need for time-consuming on-site adjustments and improving productivity.
Solution Approach 2:
The system enables self-adjustment of the internal volume ratio through the movable slide member, allowing operators to optimize performance independently without requiring manufacturer intervention or complex on-site modifications, thereby reducing time loss and improving operational efficiency.
3Ease of operation
If the internal volume ratio is fixed, then the device structure remains simple, but usage efficiency deteriorates under varying operational conditions
Solution Approach 1:
The patent implements a dynamically adjustable volume mechanism where the slide member can move along the screw rotor to change the sealing line position. This allows the internal volume ratio to be optimized for different operational conditions, improving usage efficiency while adding only moderate structural complexity through the movable component.
Solution Approach 2:
The adjustable volume mechanism serves multiple functions: it can be configured for different volume ratios to suit various usage conditions, and the same basic structure can adapt to different operational requirements. This multi-functionality improves ease of operation across diverse applications without requiring multiple specialized devices.
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 efficient adjustment of the fluid machine's volume ratio according to practical requirements, improving usage efficiency and allowing for optimal performance in various applications without the need for on-site adjustments.
Implementation Method 1
two first screw rotors arranged in the first chamber and meshingly engaged with each other... the two first screw rotors drive the fluid to enter into the second chamber
Data Source
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AI summary
A fluid machine includes a main body(10), two first screw rotors(11), two second screw rotors(13), a driving module(12), a first slide member(14) and a second slide member(15). The two first screw rotors(11) are meshingly engaged with each other. The two second screw rotors(13) are meshingly engaged with each other. Two first screw rotors(11) are arranged in the first chamber(10a) of the main body(10). Two second screw rotors(13) are arranged in the second chamber(10b) of the main body(10). The driving module(12) is arranged in the drive chamber(10c) of the main body(10). The first slide member(14) can move relative to the two first screw rotors(11). The second slide member(15) can move relative to the two second screw rotors(13). A fluid entering the main body(10) exits after being compressed or expanded by the two first screw rotors(11) and the two second screw rotors(13).