CN203362233U - Screw expansion power machine power-generating system using pressure energy of natural gas station - Google Patents
Screw expansion power machine power-generating system using pressure energy of natural gas station Download PDFInfo
- Publication number
- CN203362233U CN203362233U CN 201320450094 CN201320450094U CN203362233U CN 203362233 U CN203362233 U CN 203362233U CN 201320450094 CN201320450094 CN 201320450094 CN 201320450094 U CN201320450094 U CN 201320450094U CN 203362233 U CN203362233 U CN 203362233U
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- natural gas
- pressure
- screw expansion
- power
- pipe network
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Abstract
The utility model provides a screw expansion power machine power-generating system using pressure energy of a natural gas station. According to the power-generating system, a high-pressure natural gas pipe network is connected with a screw expansion power machine; the screw expansion power machine is connected with a power generator and a heat exchanger respectively; the heat exchanger is connected with a medium-pressure natural gas pipe network; and high-pressure natural gas in the high-pressure natural gas pipe network is depressurized in an expansion manner through the screw expansion power machine firstly, with reduction of the pressure, the volume is increased, the natural gas does work to the outside , the power generator is driven to convert mechanical energy into electric energy, and the natural gas depressurized in the expansion manner enters the medium-pressure natural gas pipe network after passing through the heat exchanger. According to the power-generating system, pressure drops of the pipeline natural gas are recycled, and the pressure energy in the high-pressure natural gas pipe network is used at the lower operation cost, so that the efficiency of energy utilization is improved; and the screw expansion power machine substitutes for a conventional turbine expansion engine and can be adapted to fluctuations of the gas flow and the pressure, so that the stability and the applicability of the power-generating system are improved, and meanwhile, the reliability is improved.
Description
Technical field
The utility model relates to the power generation system field, relates in particular to a kind of screw expansion motor power generation system of utilizing natural valve station pressure energy.
Background technique
Along with energy starved in world wide occurs, the reasonable utilization of energy also comes into one's own all the more, and particularly in recent years, power-saving technology constantly advanced, and the research of pressure energy recovery technology also gradually deeply.High-pressure natural gas can produce very large Pressure Drop in the process of pressure regulation, discharge a large amount of energy, but the utilization of this part energy not yet causes enough attention at home.Have the factors such as tolerance fluctuation for rock gas in the pressure regulation process, cause the amount of pressure energy also to have fluctuation, conventional steam turbine is difficult to be applicable to this operating mode, therefore, adopts screw expansion motor to replace conventional turbo-expander, has good market prospects.
Summary of the invention
The utility model provides a kind of screw expansion motor power generation system of utilizing natural valve station pressure energy.
The purpose of this utility model realizes by following scheme: a kind of screw expansion motor power generation system of utilizing natural valve station pressure energy, comprise the high-pressure natural gas pipe network, screw expansion motor, generator, heat exchanger, middle pressure gas distributing system, wherein the high-pressure natural gas pipe network is connected with screw expansion motor, screw expansion motor is connected with heat exchanger with generator respectively, heat exchanger is connected with middle pressure gas distributing system, high-pressure natural gas in the high-pressure natural gas pipe network first passes through screw expansion motor expansion step-down, along with pressure decreased, volume increases externally acting, drive generator that mechanical energy is converted into to electric energy, rock gas after the expansion step-down is by after heat exchanger, enter middle pressure gas distributing system.
The beneficial effects of the utility model are: by recycling the Pressure Drop of pipe natural gas self, with lower operating cost, the pressure energy in the high-pressure natural gas pipe network is used, improved efficiency of energy utilization.Adopt screw expansion motor to replace conventional turbo-expander, can adapt to the fluctuation of tolerance and pressure, strengthened stability and the applicability of power generation system, also improved unfailing performance simultaneously.
The accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
A kind of screw expansion motor power generation system of utilizing natural valve station pressure energy, comprise high-pressure natural gas pipe network 1, screw expansion motor 2, generator 3, heat exchanger 4, middle pressure gas distributing system 5, wherein high-pressure natural gas pipe network 1 is connected with screw expansion motor 2, screw expansion motor 2 is connected with heat exchanger 4 with generator 3 respectively, heat exchanger 4 is connected with middle pressure gas distributing system 5, high-pressure natural gas in high-pressure natural gas pipe network 1 first passes through screw expansion motor 2 expansion step-downs, along with pressure decreased, volume increases externally acting, drive generator that pressure energy is converted into to electric energy, rock gas after the expansion step-down is by after heat exchanger 4, enter middle pressure gas distributing system 5.
Claims (1)
1. a screw expansion motor power generation system of utilizing natural valve station pressure energy, comprise the high-pressure natural gas pipe network, generator, heat exchanger, middle pressure gas distributing system, it is characterized in that: also comprise screw expansion motor, wherein the high-pressure natural gas pipe network is connected with screw expansion motor, screw expansion motor is connected with heat exchanger with generator respectively, heat exchanger is connected with middle pressure gas distributing system, high-pressure natural gas in the high-pressure natural gas pipe network first passes through screw expansion motor expansion step-down, drive generator that mechanical energy is converted into to electric energy, rock gas after the expansion step-down is by after heat exchanger, enter middle pressure gas distributing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320450094 CN203362233U (en) | 2013-07-26 | 2013-07-26 | Screw expansion power machine power-generating system using pressure energy of natural gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320450094 CN203362233U (en) | 2013-07-26 | 2013-07-26 | Screw expansion power machine power-generating system using pressure energy of natural gas station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362233U true CN203362233U (en) | 2013-12-25 |
Family
ID=49810019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320450094 Expired - Fee Related CN203362233U (en) | 2013-07-26 | 2013-07-26 | Screw expansion power machine power-generating system using pressure energy of natural gas station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674057A (en) * | 2016-01-28 | 2016-06-15 | 侯奕 | Natural gas pressure difference energy recovery and liquid oxygen generation integrated system |
-
2013
- 2013-07-26 CN CN 201320450094 patent/CN203362233U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674057A (en) * | 2016-01-28 | 2016-06-15 | 侯奕 | Natural gas pressure difference energy recovery and liquid oxygen generation integrated system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20180726 |