CN206175011U - Generating set is united to natural gas residual pressure cold energy - Google Patents
Generating set is united to natural gas residual pressure cold energy Download PDFInfo
- Publication number
- CN206175011U CN206175011U CN201621070071.XU CN201621070071U CN206175011U CN 206175011 U CN206175011 U CN 206175011U CN 201621070071 U CN201621070071 U CN 201621070071U CN 206175011 U CN206175011 U CN 206175011U
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- cold energy
- natural gas
- pressure
- decompressor
- heat pipe
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Abstract
The utility model discloses a generating set is united to natural gas residual pressure cold energy utilizes the twin -screw expander as PTO parts, utilizes heat pipe exchanger to retrieve parts as the cold energy, utilizes the natural gas residual pressure cold energy integrated power production system that pressure bearing pot is sealed. The utility model discloses the system can utilize the natural gas at residual pressure ability and cold energy generation that the cooling in -process that steps down produced, carries the high energy utilization efficiency. Through adopting the whole encapsulation of pressure bearing pot, solved the system leak problem reliably simultaneously, made the natural gas and outside air isolated, eliminated combustible gas and leak the fire explosion hidden danger that arouses. Secondly, adopt pressure bearing pot to seal and to reduce to heat pipe exchanger oil separator to and the requirement of the bearing capacity of pipeline. Secondly, utilize pressure bearing pot can play certain falling effect of making an uproar simultaneously, noise abatement pollutes. Can find out by picture no. 2, adopt pressure bearing pot encapsulation messenger system outward appearance more succinct.
Description
Technical field
This utility model is related to a kind of electricity generation system, more particularly, to a kind of using natural gas top pressure power generation and natural
Air cooling energy electricity generation system.
Background technology
The environmental pollution that energy shortage and energy-consuming cause becomes the weight of the growth of restriction global economy and social progress
Want obstacle.With the high speed development of national economy, China has become second-biggest-in-the-world energy-consuming state, caused by energy-consuming
Problem of environmental pollution it is serious have influence on daily life, so natural gas is used as a kind of energy of relative clean,
Increasingly paid attention to by the Chinese government, at present, natural gas is widely applied to generate electricity, motor vehicle fuel, industrial chemicals, civilian combustion
The fields such as material, and its consumption increases with the speed of annual 5%-10%, with the implementation of China " coal changes combustion " policy, this
Speed can also be accelerated.
Natural gas is Room-temperature low-pressure in the state of user side, so natural gas will be through decompression before user is transported to
Operation, the most frequently used at present is exactly to carry out expenditure and pressure, and while decompression, due to natural gas expansion, temperature occurs significantly
Decline, produce more high-grade cold energy, due to the restriction of conveyance conduit, the also factor such as demand of user side, need low
Warm heated by natural gas so in the processing procedure of this natural gas, has been lost two parts energy to of a relatively high temperature, first
It is the pressure energy of natural gas to divide, that is, the remaining energy being described below, and Part II is the heat energy that heated natural gas are consumed.
Utility model content
In order to solve the problems of the prior art, this utility model provides a kind of natural gas overbottom pressure cold energy cogeneration machine
Group, solves the problems, such as in prior art energy loss in the processing procedure of natural gas.
The technical solution of the utility model is：A kind of natural gas overbottom pressure cold energy cogeneration unit, including twin screw overbottom pressure
Generating decompressor, the twin screw top pressure power generation decompressor connects respectively with top pressure power generation magneto and heat exchange of heat pipe
Connect；The heat exchange of heat pipe constitutes a closed circuit with working medium pump, vaporizer, twin screw cold energy generation decompressor；It is described double
Screw rod cold energy generation decompressor connects cold energy generation magneto.
High-pressure natural gas expansion work in twin screw top pressure power generation decompressor, is changed into the state of low-temp low-pressure, while double
Screw rod top pressure power generation decompressor is changed into mechanical work and drives top pressure power generation magneto to rotate expansion work, exports electric energy,
Low-pressure low-temperature natural gas enters heat exchange of heat pipe, and with the heat exchange of cryogenic gaseous working medium, it is normal that low-temp low-pressure natural gas is heated to low pressure
Temperature state, is delivered to user, while the organic generating working medium of cryogenic gaseous is condensed into low-pressure liquid, is pressurized through working medium pump, with
The state of high-pressure liquid enters vaporizer and exchanges heat with thermal source, is changed into high-pressure gaseous working medium, into twin screw cold energy generation decompressor
Expansion work, is changed into low-pressure gaseous working medium, completes an organic Rankine bottoming cycle, while twin screw cold energy generation decompressor is expansion
Work(is changed into mechanical work, drives cold energy generation magneto to rotate, and exports electric energy.
The shell of the generating set ensures the sealing of whole system using pressure-bearing jar structure.The pressure-bearing tank end
Mouth all adopts flange-interface.Vertical oil-gas separator, the end cap on vertical oil-gas separator top are provided with the pressure-bearing tank
It is arranged on pressure-bearing tank.
Baffle plate is provided with the heat exchange of heat pipe.
The working medium pump adopts rustless steel centrifugal multistage pump multiple centrifugal pump.
The beneficial effects of the utility model are：Natural gas overbottom pressure cold energy cogeneration unit of the present utility model is using double spiral shells
Bar decompressor as power output part, by the use of heat exchange of heat pipe as cold energy recovery part, using pressure-bearing tank seal it is natural
Gas overbottom pressure cold energy combined generating system, the remaining energy that can be produced in blood pressure lowering temperature-fall period using natural gas and cold energy generation,
Improve efficiency of energy utilization.Simultaneously by using pressure-bearing tank overall package, reliably solving the problems, such as system leak, natural gas is made
With outside air isolation, the fire explosion hidden danger that combustible gas leakage causes is eliminated.Secondly, can be reduced using the sealing of pressure-bearing tank
The requirement of the bearing capacity of opposite heat tube heat exchanger, oil eliminator, and pipeline.Secondly, simultaneously one can be played using pressure-bearing tank
Fixed Noise Reduction, reduces noise pollution.By figure two as can be seen that making system appearance more succinct using pressure-bearing potting dress.
Description of the drawings
Fig. 1 is this utility model natural gas overbottom pressure cold energy combined generating system flow chart；
Fig. 2 is natural gas overbottom pressure cold energy cogeneration unit outline drawing；
Fig. 3 is the cut-away view of natural gas overbottom pressure cold energy combined generating system；
Wherein：1 twin screw top pressure power generation decompressor；2 top pressure power generation magnetoes；3 heat exchange of heat pipes；4 working medium pumps；
5 twin screw cold energy generation decompressors；6 cold energy generation magnetoes；7 vaporizers；8 gear pumps；9 oil eliminators；10 pressure-bearings
Tank；11. gas outlets；12. high-pressure gaseous organic working medium imports；13. liquid organic working mediums are exported；14. anti-riot binding posts；
15. Imported gas；16. oil filter element replacing holes.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in detail with specific embodiment.
In original natural gas blood pressure lowering heating process, high-pressure natural gas (0.8-1.3Mpa) are depressurized to low pressure by choke valve
State (0.2MPa), while temperature drops to low temperature (- 45 DEG C), then through firing equipment, temperature from higher temperature (15 DEG C)
It is promoted to higher temperature (more than 10 DEG C).
This utility model is implemented to generate electricity with the remaining energy in the high-pressure natural gas processing procedure of 0.8-1.3Mpa and cold energy, real
The cascade utilization of the existing energy, improves the situation of the energy waste in original natural gas processing operation.Natural gas overbottom pressure cold energy is combined
Electricity generation system flow chart is as shown in figure 1, including twin screw top pressure power generation decompressor 1,1 point of the twin screw top pressure power generation decompressor
It is not connected with top pressure power generation magneto 2 and heat exchange of heat pipe 3；The heat exchange of heat pipe 3 and working medium pump 4, vaporizer 7,
Twin screw cold energy generation decompressor 5 constitutes a closed circuit；The connection of twin screw cold energy generation decompressor 5 cold energy generation is used
Magneto 6.High-pressure natural gas expansion work in twin screw top pressure power generation decompressor 1, is changed into the state of low-temp low-pressure, together
When twin screw top pressure power generation decompressor 1 expansion work be changed into mechanical work drive top pressure power generation magneto 2 to rotate, export
Electric energy, low-pressure low-temperature natural gas enters heat exchange of heat pipe 3, and with the heat exchange of cryogenic gaseous working medium, low-temp low-pressure natural gas is heated to
Low pressure normal temperature state, is delivered to user, while the organic generating working medium of cryogenic gaseous is condensed into low-pressure liquid, through working medium pump 4
Supercharging, enters vaporizer 7 and exchanges heat with thermal source with the state of high-pressure liquid, is changed into high-pressure gaseous working medium, sends out into twin screw cold energy
The expansion work of electric expansion machine 5, is changed into low-pressure gaseous working medium, completes an organic Rankine bottoming cycle, while twin screw cold energy generation is swollen
Swollen machine 5 is changed into mechanical work expansion work, drives cold energy generation magneto 6 to rotate, and exports electric energy.
The outline drawing of the natural gas overbottom pressure cold energy cogeneration unit that this utility model is related to is as shown in Fig. 2 this patent
Ensure the sealing of whole system using the structure of pressure-bearing tank 10, in case the natural gas leaked at rotatable parts axle envelope in system is entered
Environment, initiation fire or blast.Simultaneously pressure-bearing tank 10 also acts as the effect of noise reduction.Tank body port all adopts flange-interface, can be with
It is relatively easy to and realizes sealing.Meanwhile, natural gas flows in pressure-bearing tank, washes away tank inner part, reaches the effect of cooling.This
Patent is used as cold energy absorption piece using heat exchange of heat pipe 3, and baffle plate is added in heat exchange of heat pipe, natural gas is varied multiple times and exists
The flow direction of heat exchange of heat pipe 3, increases the flow process of natural gas.This utility model adopts vertical oil-gas separator 9, refers in this patent
System in, when changing the filter element of oil, only need the end cap on the top of vertical oil-gas separator 9 on general tank body, change convenient.
The cut-away view of the natural gas overbottom pressure cold energy combined generating system that this patent is related to is as shown in Figure 3.Working medium pump 4 adopts rustless steel
Centrifugal multistage pump multiple centrifugal pump.
By taking the 50kW units in the series generator group that this utility model is covered as an example, when the parameter of natural gas is
1.3Mpa (gauge pressure), 15 DEG C, 5.8m3During/min, the electric energy of 50kWh can be per hour produced, through the natural of this system
Gaseity is changed into 0.2Mpa (gauge pressure), more than 10 DEG C.All processes will not destroy the requirement of original production process, reduce high-grade energy
The consumption in source, reduces environmental pollution and thermal pollution, has reached the target of energy-saving and emission-reduction.
Preferred embodiment of the present utility model is the foregoing is only, protection domain of the present utility model is not limited to above-mentioned reality
Case, all impartial changes done according to this utility model claim and modification are applied, should all belong to of the present utility model covering
Scope, the protection domain required by the application is as shown in the application claims.
Claims (6)
1. a kind of natural gas overbottom pressure cold energy cogeneration unit, it is characterised in that described including twin screw top pressure power generation decompressor
Twin screw top pressure power generation decompressor is connected respectively with top pressure power generation magneto and heat exchange of heat pipe；The heat exchange of heat pipe
A closed circuit is constituted with working medium pump, vaporizer, twin screw cold energy generation decompressor；The twin screw cold energy generation decompressor
Connection cold energy generation magneto.
2. natural gas overbottom pressure cold energy cogeneration unit according to claim 1, it is characterised in that the generating set it is outer
Shell ensures the sealing of whole system using pressure-bearing jar structure.
3. natural gas overbottom pressure cold energy cogeneration unit according to claim 2, it is characterised in that the pressure-bearing tank end
Mouth all adopts flange-interface.
4. natural gas overbottom pressure cold energy cogeneration unit according to claim 2, it is characterised in that in the pressure-bearing tank
Vertical oil-gas separator is provided with, the end cap on vertical oil-gas separator top is arranged on pressure-bearing tank.
5. natural gas overbottom pressure cold energy cogeneration unit according to claim 1, it is characterised in that in the heat exchange of heat pipe
It is provided with baffle plate.
6. natural gas overbottom pressure cold energy cogeneration unit according to claim 1, it is characterised in that the working medium pump is not using
Rust steel centrifugal multistage pump multiple centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070071.XU CN206175011U (en) | 2016-09-20 | 2016-09-20 | Generating set is united to natural gas residual pressure cold energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070071.XU CN206175011U (en) | 2016-09-20 | 2016-09-20 | Generating set is united to natural gas residual pressure cold energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175011U true CN206175011U (en) | 2017-05-17 |
Family
ID=58676249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621070071.XU Expired - Fee Related CN206175011U (en) | 2016-09-20 | 2016-09-20 | Generating set is united to natural gas residual pressure cold energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023014326A1 (en) * | 2021-08-03 | 2023-02-09 | Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi | A heat transfer system |
-
2016
- 2016-09-20 CN CN201621070071.XU patent/CN206175011U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023014326A1 (en) * | 2021-08-03 | 2023-02-09 | Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi | A heat transfer system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20180920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |