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A scroll expander with enthalpy reduction and speed stabilization and method for enthalpy reduction and speed stabilization

A scroll expander and expander technology, which is applied to rotary piston engines, rotary or oscillating piston engines, mechanical equipment, etc. Adjustment, expansion ratio and mass flow stabilization effect

Active Publication Date: 2022-06-07
ADVANCED SCROLL TECHNOLOGIES (HANGZHOU) INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual use, affected by factors such as intake pressure fluctuations, internal leakage of the expander, and operating frictional resistance, the speed of the expander often deviates from the rated speed, which makes it difficult for the expander to operate at the set intake pressure. , stable operation under expansion ratio and mass flow rate

Method used

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  • A scroll expander with enthalpy reduction and speed stabilization and method for enthalpy reduction and speed stabilization
  • A scroll expander with enthalpy reduction and speed stabilization and method for enthalpy reduction and speed stabilization
  • A scroll expander with enthalpy reduction and speed stabilization and method for enthalpy reduction and speed stabilization

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Embodiment 1

[0067] Embodiment 1, a kind of enthalpy reduction and steady speed scroll expander, such as figure 1 As shown, it includes generator cover 1, front balance weight 2, fastening screws 3, eccentric shaft 4, front bearing 5, rotor 6, stator coil 7, motor housing 8, middle balance weight 11, rear bearing 12, rear balance weight 13. The cross slip ring 14, the movable scroll 15, the steel ring 16, the fixed scroll 21, the permanent magnet magnetic foot base 22, the permanent magnet magnetic foot 221, the air inlet hole 23, the exhaust hole 24 and the base 25.

[0068] The orbiting scroll 15 includes an orbiting scroll element 151 and an orbiting scroll end plate 152; the fixed scroll 21 includes a fixed scroll element 211 and a fixed scroll end plate 212, and the orbiting scroll element 151 and the fixed scroll element 211 are helical or involute type. The movable scroll element 151 and the fixed scroll element 211 of the two mutually conjugated helical cylindrical sidewalls mesh ...

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Abstract

The invention provides an enthalpy-reducing and stable-speed scroll expander, which includes a movable scroll, a fixed scroll and an eccentric shaft, the movable scroll includes a movable scroll element and a movable scroll end plate; the fixed scroll includes a fixed scroll element and an eccentric shaft. The fixed scroll end plate, the movable scroll element and the fixed scroll element are in a helical or involute shape and are conjugated to each other with a phase angle displacement of 180° and a radial displacement called the orbiting radius. The circular translation or called orbiting; the present invention also provides a method for reducing enthalpy and stabilizing the speed. The present invention uses the principle of electromechanical-electrical-magnetic energy conversion to provide electric energy assistance when the expander rotates at a low speed or starts , so that it reaches the rated speed; when the speed is high, the enthalpy generated by gas expansion is converted into electric energy output, and the speed is stabilized at the rated speed, so that the expander is always controlled at the rated speed to ensure the expansion ratio and quality of the expander The flow is steady. This enables the expander to expand in a near-adiabatic state. To achieve the best cooling effect.

Description

technical field [0001] The invention relates to a scroll-type volumetric fluid displacement device, in particular to an enthalpy-reducing and speed-stabilizing scroll expander and a method for reducing enthalpy and speed-stabilizing. Background technique [0002] When the scroll expander is used in the reverse Brayden refrigeration cycle, it needs to operate stably under the set inlet pressure, mass flow and expansion ratio to achieve a process as close to adiabatic expansion as possible, and to maximize the temperature drop of gas expansion. . However, in actual use, due to factors such as fluctuations in intake pressure, internal leakage of the expander, and frictional resistance during operation, the speed of the expander often deviates from the rated speed, which makes it difficult for the expander to operate at the set intake pressure. , stable operation under expansion ratio and mass flow. [0003] Therefore, there is a need for improvements to the prior art. SUMMA...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01C1/02F01C13/00F01C20/06F01C21/00
CPCF01C1/0215F01C13/00F01C21/00F01C20/06Y02B30/70
Inventor 倪诗茂蔡康阗蔡炯炯
Owner ADVANCED SCROLL TECHNOLOGIES (HANGZHOU) INC
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