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Screw compressor system with organic Rankine cycle

A screw compressor and Rankine cycle technology, applied in the direction of machines/engines, mechanical equipment, steam engine devices, etc., can solve the problem of low energy utilization and achieve the effect of reducing operating power

Inactive Publication Date: 2016-01-06
WUXI COMPRESSOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides a screw compressor system with an organic Rankine cycle, which can solve the problem of low energy utilization rate caused by the direct discharge of excess heat energy in the existing screw compressor system, thereby meeting the current energy saving and emission reduction requirements Require

Method used

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  • Screw compressor system with organic Rankine cycle
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  • Screw compressor system with organic Rankine cycle

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Experimental program
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Effect test

Embodiment 1

[0019] A single-stage oil-injected screw compressor system with organic Rankine cycle, see figure 1 , Which includes a single-stage oil-injected screw compressor host 1-1, a motor that drives the single-stage oil-injected screw compressor host 1-1, a screw expander 5, and a working fluid vapor generation system 6, a single-stage oil-injected screw compressor The air inlet end of the main engine 1-1 is connected to the intake valve 3 and the intake filter 4 in sequence. The output shaft of the screw expander 5 is connected to the rotor shaft of the single-stage oil-injected screw compressor main engine 1-1. The generation system 6 includes a condenser 61, a working fluid tank 62, a working fluid pump 63 and a heat exchanger. The heat exchanger is composed of a preheater 641, an evaporator 642, and a superheater 643 connected in sequence. The high temperature mixed oil and gas output end of the main engine 1-1 is connected to the oil and gas separator 8 through the one-way valve 7...

Embodiment 2

[0022] When the main screw compressor of the system of the present invention adopts a two-stage oil-injected screw compressor 1-2, see figure 2 , The output shaft of the screw expander 5 is axially connected with the rotor shaft of the first-stage screw compressor 1-2a, the one-way valve 7 and the lubricating oil filter 12 are respectively connected with the second-stage screw compressor 1-2b through pipelines, The rest of the setup and operation process are the same as the single-stage oil-injected screw compressor of the first embodiment.

Embodiment 3

[0024] A single-stage oil-free screw compressor system with organic Rankine cycle, see image 3 , Which includes single-stage oil-free screw compressor mainframe 1-3, motor 2 driving single-stage oil-free screw compressor mainframe 1-3, screw expander 5 and working fluid vapor generation system 6, single-stage oil-free screw compressor The intake ports of the main engine 1-3 are connected to the intake valve 3 and the intake filter 4 in sequence. The output shaft of the screw expander 5 is axially connected with the rotor shaft of the motor 2. The working fluid steam generation system 6 includes a condenser 61, The mass tank 62, the working medium pump 63 and the heat exchanger, in which the heat exchanger is composed of a preheater 641, an evaporator 642, and a superheater 643 connected in sequence, the single-stage oil-free screw compressor main engine 1-3 high temperature gas output The end is connected to the gas inlet end of the superheater 643 through a pipeline, the gas o...

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PUM

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Abstract

The invention provides a screw compressor system with the organic Rankine cycle. The screw compressor system can solve the problem that because an existing screw compressor system directly discharges heat outwards, the reutilization rate is low. The screw compressor system comprises a main screw compressor, a motor driving the main screw compressor to work, a screw expander and a working medium steam generation system. An output shaft of the screw expander is coupled to a rotor shaft of the main screw compressor. The working medium steam generation system comprises a condenser, a working medium tank, a working medium pump and a heat exchanger. The heat energy output end of the main screw compressor is connected to the heat exchanger through a pipeline. The low-temperature and low-pressure medium output end of the screw expander is connected to the medium inlet end of the condenser through a pipeline, and the medium outlet end of the condenser is connected with the working medium tank through a pipeline. The working medium tank, the working medium pump and the heat exchanger are sequentially connected through a pipeline. The high-temperature and high-pressure medium output end of the heat exchanger is connected with the high-temperature and high-pressure medium input end of the screw expander through a pipeline.

Description

Technical field [0001] The invention relates to the technical field of screw compressors, in particular to a screw compressor system with an organic Rankine cycle. Background technique [0002] Screw compressor is a common positive displacement compressor. Its working process follows the law of thermodynamics. Because the temperature difference between its inlet and outlet gas is not large, it is generally considered that the input power of the screw compressor is converted into heat energy and discharged. In general, this part The heat energy is discharged directly after cooling through the heat exchange system. The heat exchange system generally uses fan cooling or water cooling, which has the problem of low heat energy reuse rate, which cannot meet the current energy saving and emission reduction requirements. [0003] The existing Organic Rankine Cycle (Organic Rankine Cycle, which can be abbreviated as ORC) is mostly used in power generation systems, and the general organic Ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/04F01C13/00F01C13/04F01K25/08
Inventor 朱为宇吴霞俊张开闯胡建军
Owner WUXI COMPRESSOR CO LTD