CN205908319U - Steam screw rod expander and organic rankine cycle tandem type power generation system - Google Patents
Steam screw rod expander and organic rankine cycle tandem type power generation system Download PDFInfo
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- CN205908319U CN205908319U CN201620824393.2U CN201620824393U CN205908319U CN 205908319 U CN205908319 U CN 205908319U CN 201620824393 U CN201620824393 U CN 201620824393U CN 205908319 U CN205908319 U CN 205908319U
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Abstract
The utility model discloses a steam screw rod expander and organic rankine cycle tandem type power generation system. This power generation system includes steam screw rod inflation generating set and organic rankine cycle screw rod inflation generating set, steam screw rod inflation generating set includes that first screw rod expander, first generator, oil storage tank, first filter, cooler, oil pump, second filter, oil content join in marriage seat, steam filtration ware, organic rankine cycle screw rod inflation generating set includes second screw rod expander, second generator, condenser, filter, working medium pump, regenerator, evaporimeter. The utility model discloses an area presses steam as the heat source, get into earlier the acting of first screw rod expander direct expansion and drive the electricity generation of first generator, low pressure steam after the acting again with organic working medium heat transfer, make to get into the acting of second screw rod expander inflation after the evaporation of organic working medium and drive the second generator and generate electricity, pressure energy that the make full use of heat source self carried has improved the energy recovery utilization efficiency.
Description
Technical field
This utility model is related to industrial exhaust heat hydraulic recovery technical field of power generation, in particular to a kind of steam screw expander
With organic Rankine bottoming cycle tandem type electricity generation system.
Background technology
China's economy, through high speed development for many years, has faced two big pressing issues at present.One is environmental pollution and carbon row
Put problem, environment ability to bear is close to the limit；Two is economic structure, the generation great change of entreprise cost structure, extensive warp
Ji is hard to carry on.This two large problems requires that we improve fossil energy comprehensive utilization ratio, reduce environmental pollution, carbon emission and
Reduce enterprise's energy cost, therefore energy-saving and emission-reduction become the Major Strategic of China's socio-economic development.Industrial exhaust heat overbottom pressure resource
Recycling be energy-saving and emission-reduction important way.
According to the difference of waste heat supply temperature, generally residual heat resources are divided three classes: more than 500 DEG C be high-temperature residual heat, 200 DEG C～
Between 500 DEG C be middle temperature waste heat, less than 200 DEG C be low temperature exhaust heat.For high temperature residual heat resources, mainly adopt waste heat pot at present
Stove produces overheated saturated vapor and promotes the mode of steam type steam turbine power generation to recycle.Recovery for cryogenic waste heat resource
Using the correlation technique level of current China is also fast-developing, mainly adopts organic Rankine bottoming cycle expansion power generation system.
In organic Rankine bottoming cycle expansion power generation system, liquid organic working medium in vaporizer with the heat exchange of low temperature exhaust heat source, inhale
Becoming gases at high pressure after thermal evaporation, promoting decompressor to do work thus driving electrical power generators, the gaseous working medium of reduced pressure is in condensation
It is condensed into liquid in device, enter in vaporizer after being boosted by working medium pump and absorb heat, complete an organic Rankine bottoming cycle.Its essence is
Using the temperature difference of thermal source and cooling medium, the temperature difference is changed into pressure reduction, finally converts heat into mechanical or electrical energy.This side at present
Disclosed Patents are a lot of in face, such as Publication No. cn203347863u, cn102691555a,
The Chinese patents such as cn202420251u, cn203271836u, cn102230401a.
Actually in the industrial production, according to whether with pressure can be subdivided into thermal source with pressure by cryogenic waste heat resource further
No press thermal source.No press thermal source for general, get final product effective recycling using above-mentioned organic Rankine bottoming cycle expansion power generation system.
However, for thermal source with pressure, then wasting the self-contained pressure of thermal source using organic Rankine bottoming cycle expansion power generation system merely
Can, cause energy recovery utilization ratio low.Therefore, a kind of comprehensive high-efficiency for pressurized vapor waste heat overbottom pressure resource of market in urgent need
Recycling system, to fill up the deficiencies in the prior art.
Content of the invention
The purpose of this utility model seeks to provide a kind of steam screw expander to generate electricity with organic Rankine bottoming cycle tandem type
System.This electricity generation system adopts pressurized vapor as thermal source, and pressurized vapor resource is introduced into the first screw expander direct expansion
Acting drives the first electrical power generators, and the low-pressure steam after acting is sequentially entered vaporizer and regenerator again and changed with organic working medium
Heat, makes organic working medium enter the second screw expander expansion work after evaporating and drives the second electrical power generators, thus making full use of
Thermal source self-contained pressure energy, improves energy recovery utilization ratio.
For achieving the above object, the steam screw expander designed by this utility model and organic Rankine bottoming cycle tandem type are sent out
Electric system, including steam screw expansion generating set and organic Rankine bottoming cycle screw expansion generating set；
Described steam screw expansion generating set includes the first screw expander, the first electromotor, oil storage tank, the first filtration
Device, cooler, oil pump, the second filter, oil join seat and vapor filter；
Wherein, described first screw expander is connected with described first generator coaxle, and the oil-out of described oil storage tank is even
Connect the oil-in of described first filter, the oil-out of described first filter connects the oil-in of described cooler, described cold
But the oil-out of device connects the oil-in of described second filter by oil pump, and the oil-out connection of described second filter is described
Oil joins the oil-in of seat, and described oil joins the lubricating oil inlet of oil-out described first screw expander of connection of seat, described
The lubricating oil outlet of the first screw expander connects the oil-in of described oil storage tank；
Described organic Rankine bottoming cycle screw expansion generating set include the second screw expander, the second electromotor, condenser,
Filter, working medium pump, regenerator and vaporizer；
Wherein, described second screw expander is connected with described second generator coaxle, described second screw expander
Working substance steam outlet connects the working substance steam entrance of described condenser, and the working medium liquid outlet of described condenser connects described filter
Working medium liquid import, the working medium liquid outlet of described filter connects the working medium liquid import of described regenerator by working medium pump, described
The working medium liquid outlet of regenerator connects the working medium liquid import of described vaporizer, and the working substance steam outlet connection of described vaporizer is described
The working substance steam entrance of the second screw expander；
Described steam screw expansion generating set adopts pressurized vapor as thermal source, and described pressurized vapor is via main line stream
Go out, the higher pressure steam outlet of described main line connects the higher pressure steam inlet of vapor filter, the high pressure of described vapor filter
Steam (vapor) outlet connects the higher pressure steam inlet of described first screw expander, the low-pressure steam outlet of described first screw expander
Connect the low-pressure steam inlet of described vaporizer, the hot water outlet of described vaporizer connects the hot water inlet of described regenerator, institute
State regenerator and be additionally provided with cold water outlet.
Further, described main line is provided with the bye-pass communicating therewith, and the higher pressure steam outlet of described bye-pass is even
Connect the higher pressure steam inlet of described oil storage tank, described oil storage tank is additionally provided with cooling water outlet.So, the lubricating oil in oil storage tank is permissible
Carry out heat exchange with the high steam entering by bye-pass, reach the purpose of heating, make use of the waste heat of high steam.
Further, it is provided with the first regulating valve for controlling pressurized vapor flow, described bye-pass in described main line
Inside it is provided with the second regulating valve for controlling pressurized vapor flow.As such, it is possible to according to practical situation adjust the first regulating valve and
Second regulating valve enters the pressurized vapor flow of main line and bye-pass to control.
Further, described first screw expander and the second screw expander are twin-screw expander.As such, it is possible to
Effectively improve reliability, stability and the adaptability for working condition of system.
Further, described first filter is coarse filter, and described second filter is fine filter.So, lubricate
, through double-filtration, purity is higher, and lubricant effect is more preferable for oil.
Yet further, described cooler is air-cooled cooler.The effect of air-cooled cooler is to control oil temperature suitable
Temperature, generally 30 DEG C～50 DEG C.
Further, described pressurized vapor is superheated steam, saturated vapor or vehicle repair major mixture.
Compared with prior art, this utility model has the advantage that
First, this utility model adopts pressurized vapor as thermal source, pressurized vapor resource is introduced into the first screw expander
Direct expansion acting drive the first electrical power generators, the low-pressure steam after acting sequentially enter again vaporizer and regenerator with organic
Working medium heat exchange, makes organic working medium enter the second screw expander expansion work after evaporating and drives the second electrical power generators, thus filling
Divide and make use of the self-contained pressure energy of thermal source, improve thermal source hydraulic recovery utilization ratio.
Second, pressurized vapor of the present utility model can enter oil storage tank by the road carries out heat exchange with lubricating oil therein,
Realize the heating to lubricating oil, take full advantage of the waste heat of pressurized vapor band.
Third, the first screw expander of the present utility model and the second screw expander are twin-screw expander, effectively
The reliability of raising system, stability and adaptability for working condition.
Brief description
Fig. 1 is the structural representation of a kind of steam screw expander and organic Rankine bottoming cycle tandem type electricity generation system；
Wherein: the first screw expander 1, the first electromotor 2, oil storage tank 3, the first filter 4, cooler 5, oil pump 6,
Tow filtrator 7, oil join seat 8, vapor filter 9, the first regulating valve 10, the second regulating valve 11, the second screw expander 12,
Two electromotors 13, condenser 14, filter 15, working medium pump 16, regenerator 17, vaporizer 18, main line 19, bye-pass 20.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Steam screw expander shown in figure and organic Rankine bottoming cycle tandem type electricity generation system, including steam screw expansion
Generating set and organic Rankine bottoming cycle screw expansion generating set；Steam screw expansion generating set includes the first screw expander
1st, the first electromotor 2, oil storage tank 3, the first filter 4, cooler 5, oil pump 6, the second filter 7, oil join seat 8, Yi Jizheng
Vapour filter 9；Wherein, the first screw expander 1 is coaxially connected with the first electromotor 2, and the oil-out of oil storage tank 3 connects the first mistake
The oil-in of filter 4, the oil-out of the first filter 4 connects the oil-in of cooler 5, and the oil-out of cooler 5 passes through oil pump 6
Connect the oil-in of the second filter 7, the oil-out of the second filter 7 connects the oil-in that oil joins seat 8, and oil joins seat 8
Oil-out connects the lubricating oil inlet of the first screw expander 1, and the lubricating oil outlet of the first screw expander 1 connects oil storage tank 3
Oil-in；
Organic Rankine bottoming cycle screw expansion generating set includes the second screw expander 12, the second electromotor 13, condenser
14th, filter 15, working medium pump 16, regenerator 17 and vaporizer 18；Wherein, the second screw expander 12 and the second electromotor
13 is coaxially connected, and the working substance steam outlet of the second screw expander 12 connects the working substance steam entrance of condenser 14, condenser 14
Working medium liquid outlet connect filter 15 working medium liquid import, filter 15 working medium liquid outlet by working medium pump 16 connect backheat
The working medium liquid import of device 17, the working medium liquid outlet of regenerator 17 connects the working medium liquid import of vaporizer 18, the working medium of vaporizer 18
Steam (vapor) outlet connects the working substance steam entrance of the second screw expander 12；
Steam screw expansion generating set adopts pressurized vapor as thermal source, and pressurized vapor flows out via main line 19, main
The higher pressure steam outlet of pipeline 19 connects the higher pressure steam inlet of vapor filter 9, and the higher pressure steam outlet of vapor filter 9 is even
Connect the higher pressure steam inlet of the first screw expander 1, the low-pressure steam outlet of the first screw expander 1 connects the low of vaporizer 18
Pressure steam inlet, the hot water outlet of vaporizer 18 connects the hot water inlet of regenerator 17, and regenerator 17 is additionally provided with cold water outlet.
Main line 19 is provided with the bye-pass 20 communicating therewith, and the higher pressure steam outlet of bye-pass 20 connects the high steam of oil storage tank 3
Entrance, oil storage tank 3 is additionally provided with cooling water outlet.
In technique scheme, in main line 19, it is provided with the first regulating valve 10 for controlling pressurized vapor flow, arm
It is provided with the second regulating valve 11 for controlling pressurized vapor flow in road 20.First screw expander 1 and the second screw expander
12 are twin-screw expander, so can effectively improve reliability, stability and the adaptability for working condition of system.First filter
4 is coarse filter, and the second filter 7 is fine filter, and, through double-filtration, purity is higher, and lubricant effect is more preferable for lubricating oil.Cold
But device 5 is air-cooled cooler.The effect of air-cooled cooler is to control oil temperature in suitable temperature, generally 30 DEG C～50 DEG C.Band
Pressure steam is superheated steam, saturated vapor or vehicle repair major mixture.
Pressurized vapor glide path in systems is as follows: pressurized vapor resource is divided into two-way, and major part is via master
Pipeline 19 enters after vapor filter 9 filters and enters electricity generation system, and steam flow is controlled to adjust by the first regulating valve 10.Secondary
Part enters oil storage tank 3 through bye-pass 20 and carries out heat exchange with lubricating oil therein, realizes the heating to lubricating oil, steam flow leads to
Cross the second regulating valve 11 to control to adjust.
Pressurized vapor resource after vapor filter 9 filters is introduced into the first screw expander 1 direct expansion acting
Drive the first electromotor 2 to generate electricity, after pressurized vapor release pressure energy acting, become low-pressure steam.Low-pressure steam enters back into vaporizer
18 with organic Rankine bottoming cycle in liquid organic working medium heat exchange, promote liquid organic working medium heat absorption evaporation.Low-pressure steam release is latent
Become hot water after heat.Hot water enters back into regenerator 17 and liquid organic working medium heat exchange, and liquid organic working medium is preheated.Hot water
Become cold water after release sensible heat to discharge.
In steam screw expansion generating set, the glide path of lubricating oil is as follows:
Be in oil storage tank 3 room temperature lubricating oil preheated by vapourss after start the cycle over, be introduced into the first filter 4 and carry out
Coarse filtration, subsequently into cooler 5, the effect of cooler 5 is to control oil temperature in suitable temperature, generally 30 DEG C～50 DEG C.
The lubricating oil being in suitable temperature enters back into oil pump 6, sequentially enters the second filter 7 and oil joins seat 8 after oil pump 6 pressurization,
Oil is joined seat 8 and is divided into multichannel to enter the first screw expander 1 lubricating oil, and the first screw expander 1 bearings at both ends is moistened
Sliding, turn again to oil storage tank 3 from the first screw expander 1 lubricating oil out and complete to circulate.
In organic Rankine bottoming cycle screw expansion generating set, the glide path of organic working medium is as follows:
The low-temp low-pressure organic working medium steam discharged from the second screw expander 12 enters into condenser 14, cooled water
It is condensed into liquid organic working medium, enter working medium pump from the liquid organic working medium of condenser 14 output after filter 15 filtration
16, the liquid organic working medium after working medium pump 16 pressurization enters back into regenerator 17, and the liquid being preheated in regenerator 17 has
Machine working medium enters back into vaporizer 18, and the liquid organic working medium after preheating absorbs amount of heat explosive evaporation in vaporizer 18, steams
High pressure organic working medium steam after sending out is again introduced into expansion work and then drive the second electromotor 13 in the second screw expander 12
Generate electricity, complete to circulate.In the present embodiment, pressurized vapor pressure is 0.5mpa, and organic working medium is r245fa.
The above, specific embodiment only of the present utility model is it is noted that any be familiar with those skilled in the art
In technical scope disclosed by this utility model for the member, the change or replacement that can readily occur in, all should cover in this utility model
Protection domain within.
Claims (7)
1. a kind of steam screw expander and organic Rankine bottoming cycle tandem type electricity generation system, including steam screw expansion generating set
With organic Rankine bottoming cycle screw expansion generating set it is characterised in that:
Described steam screw expansion generating set include the first screw expander (1), the first electromotor (2), oil storage tank (3),
One filter (4), cooler (5), oil pump (6), the second filter (7), oil join seat (8) and vapor filter (9)；
Wherein, described first screw expander (1) is coaxially connected with described first electromotor (2), described oil storage tank (3) fuel-displaced
Mouth connects the oil-in of described first filter (4), and the oil-out of described first filter (4) connects described cooler (5)
Oil-in, the oil-out of described cooler (5) connects the oil-in of described second filter (7) by oil pump (6), and described second
The oil-out of filter (7) connects the oil-in that described oil joins seat (8), and the oil-out connection that described oil joins seat (8) is described
The lubricating oil inlet of the first screw expander (1), the lubricating oil outlet of described first screw expander (1) connects described oil storage tank
(3) oil-in；
Described organic Rankine bottoming cycle screw expansion generating set includes the second screw expander (12), the second electromotor (13), cold
Condenser (14), filter (15), working medium pump (16), regenerator (17) and vaporizer (18)；
Wherein, described second screw expander (12) is coaxially connected with described second electromotor (13), described second screw expansion
The working substance steam outlet of machine (12) connects the working substance steam entrance of described condenser (14), and the working medium liquid of described condenser (14) goes out
Mouth connects the working medium liquid import of described filter (15), and the working medium liquid outlet of described filter (15) is connected by working medium pump (16)
The working medium liquid import of described regenerator (17), the working medium liquid outlet of described regenerator (17) connects the working medium of described vaporizer (18)
Liquid import, the working substance steam outlet of described vaporizer (18) connects the working substance steam entrance of described second screw expander (12)；
Described steam screw expansion generating set adopts pressurized vapor as thermal source, and described pressurized vapor flows via main line (19)
Go out, the higher pressure steam outlet of described main line (19) connects the higher pressure steam inlet of vapor filter (9), described vapor filter
(9) higher pressure steam outlet connects the higher pressure steam inlet of described first screw expander (1), described first screw expander
(1) low-pressure steam outlet connects the low-pressure steam inlet of described vaporizer (18), and the hot water outlet of described vaporizer (18) is even
Meet the hot water inlet of described regenerator (17), described regenerator (17) is additionally provided with cold water outlet.
2. steam screw expander according to claim 1 and organic Rankine bottoming cycle tandem type electricity generation system, its feature exists
In: described main line (19) is provided with the bye-pass (20) communicating therewith, and the higher pressure steam outlet of described bye-pass (20) connects
The higher pressure steam inlet of described oil storage tank (3), described oil storage tank (3) is additionally provided with cooling water outlet.
3. steam screw expander according to claim 2 and organic Rankine bottoming cycle tandem type electricity generation system, its feature exists
In: it is provided with the first regulating valve (10) for controlling pressurized vapor flow in described main line (19), in described bye-pass (20)
It is provided with the second regulating valve (11) for controlling pressurized vapor flow.
4. the steam screw expander according to claim 1 or 2 or 3 and organic Rankine bottoming cycle tandem type electricity generation system, its
It is characterised by: described first screw expander (1) and the second screw expander (12) are twin-screw expander.
5. the steam screw expander according to claim 1 or 2 or 3 and organic Rankine bottoming cycle tandem type electricity generation system, its
It is characterised by: described first filter (4) is coarse filter, described second filter (7) is fine filter.
6. the steam screw expander according to claim 1 or 2 or 3 and organic Rankine bottoming cycle tandem type electricity generation system, its
It is characterised by: described cooler (5) is air-cooled cooler.
7. the steam screw expander according to claim 1 or 2 or 3 and organic Rankine bottoming cycle tandem type electricity generation system, its
It is characterised by: described pressurized vapor is superheated steam, saturated vapor or vehicle repair major mixture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620824393.2U CN205908319U (en) | 2016-08-01 | 2016-08-01 | Steam screw rod expander and organic rankine cycle tandem type power generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620824393.2U CN205908319U (en) | 2016-08-01 | 2016-08-01 | Steam screw rod expander and organic rankine cycle tandem type power generation system |
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| CN205908319U true CN205908319U (en) | 2017-01-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605555A (en) * | 2017-10-09 | 2018-01-19 | 同济大学 | By two organic Rankine bottoming cycles（ORC）The electricity generation system being coupled to form |
| CN108223315A (en) * | 2018-01-30 | 2018-06-29 | 中国华能集团清洁能源技术研究院有限公司 | A kind of twin-stage flash distillation and the united geothermal power generation plant of Organic Rankine Cycle and method |
| CN108343482A (en) * | 2018-04-18 | 2018-07-31 | 北京华清微拓节能技术股份公司 | Birotor expanding machine is connected the device for generating power by waste heat of organic Rankine cycle expansion machine |
| CN109611167A (en) * | 2018-11-23 | 2019-04-12 | 华北电力大学（保定） | Recycle method, apparatus, equipment, system and the storage medium of low temperature exhaust heat steam |
| CN112253257A (en) * | 2020-11-12 | 2021-01-22 | 意朗实业（上海）有限公司 | Expander system and power generation system |
-
2016
- 2016-08-01 CN CN201620824393.2U patent/CN205908319U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605555A (en) * | 2017-10-09 | 2018-01-19 | 同济大学 | By two organic Rankine bottoming cycles（ORC）The electricity generation system being coupled to form |
| CN108223315A (en) * | 2018-01-30 | 2018-06-29 | 中国华能集团清洁能源技术研究院有限公司 | A kind of twin-stage flash distillation and the united geothermal power generation plant of Organic Rankine Cycle and method |
| CN108343482A (en) * | 2018-04-18 | 2018-07-31 | 北京华清微拓节能技术股份公司 | Birotor expanding machine is connected the device for generating power by waste heat of organic Rankine cycle expansion machine |
| CN109611167A (en) * | 2018-11-23 | 2019-04-12 | 华北电力大学（保定） | Recycle method, apparatus, equipment, system and the storage medium of low temperature exhaust heat steam |
| CN112253257A (en) * | 2020-11-12 | 2021-01-22 | 意朗实业（上海）有限公司 | Expander system and power generation system |
| CN112253257B (en) * | 2020-11-12 | 2024-06-07 | 意朗实业（上海）有限公司 | Expander system and power generation system |
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