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Screw expanding power generating device

A power generation device, screw expansion technology, applied in electromechanical devices, cooling/ventilation devices, components of pumping devices for elastic fluids, etc., can solve problems such as refrigerant leakage

Inactive Publication Date: 2011-04-20
SHANGHAI POWER TECH SCREW MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The open screw expander is connected to the generator at the output shaft end through the shaft seal, and its defect is that the refrigerant will leak through the shaft seal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] see figure 2 , figure 2 An organic Rankine cycle power generation system using the present invention is shown, and the organic Rankine cycle power generation system includes a condenser 5, a liquid pump 4, an evaporator 3, and a screw expansion power generation device 1 connected in sequence. The screw expansion power generation device 1 disclosed in the present invention is an integrated half-sealed or fully-sealed screw expander and generator. The generator can be a synchronous generator or an asynchronous generator.

[0034] see image 3 and Figure 4 , the power generation device 1 includes a semi-sealed or fully-sealed casing, and a screw expander and a generator 101 are arranged in the casing; the screw expander and the generator 101 are integrated, and the rotor of the screw expander and the generator The rotor is fixedly connected, and the power generator 1 drives the generator 101 to generate electricity through the rotation of the screw expander rotor. ...

Embodiment 2

[0039] In this embodiment, the rotor that drives the generator to generate electricity may be a female rotor.

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Abstract

The invention discloses a screw expanding power generating device which can be used for organic Rankine cycle. The screw expanding power generating device comprises a semi-enclosed or totally-enclosed shell, wherein a screw expander and a power generator are arranged in the shell, a rotor of the screw expander is fixedly connected with a rotor of the power generator, the rotor of the screw expander rotates to drive the power generator to generate power, an air suction inlet and an air discharging outlet of the screw expander are arranged on the shell, and airflows which enter the shell from the air suction inlet and are discharged from the air discharging outlet of the screw expander pass through the power generator to cool the power generator. The screw expanding power generating device is semi-enclosed or totally-enclosed, the screw expander and the power generator are arranged in the shell as a whole, and the power generator can be a synchronous power generator or an asynchronous power generator. When the screw expanding power generating device generates power, the situation of leaking refrigeration working media can be avoided.

Description

technical field [0001] The invention belongs to the technical field of power generation equipment, relates to an organic Rankine cycle, and also relates to a half-sealed or fully-sealed screw expansion power generation device. Background technique [0002] see figure 1 , figure 1 It is a typical Organic Rankin Cycle (ORC), including an expander 1', a generator 2', an evaporator 3', a liquid pump 4', and a condenser 5'. [0003] The low-temperature and low-pressure liquid refrigerant is boosted in the liquid pump 4'; then enters the evaporator 3' to be heated and vaporized until it becomes a superheated gas (high temperature and high pressure), and then enters the expander 1' to expand and perform work, driving the generator 2' generate electricity. After doing work, the low-temperature and low-pressure gas enters the condenser 5' to be cooled and condensed into liquid; then returns to the liquid pump 4' to complete a cycle. [0004] Existing expanders for ORC include sem...

Claims

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Application Information

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IPC IPC(8): F01C13/00F01C21/10F01C1/16H02K9/00
CPCH02K7/1823F01C21/06F01C1/16F01C21/10F04C29/045F04C2240/30F01C13/00F04C23/008
Inventor 汤炎
Owner SHANGHAI POWER TECH SCREW MACHINERY
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