CN208282077U - It is a kind of with pressure matcher machine furnace waste heat coupling utilize system - Google Patents
It is a kind of with pressure matcher machine furnace waste heat coupling utilize system Download PDFInfo
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- CN208282077U CN208282077U CN201820403722.5U CN201820403722U CN208282077U CN 208282077 U CN208282077 U CN 208282077U CN 201820403722 U CN201820403722 U CN 201820403722U CN 208282077 U CN208282077 U CN 208282077U
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- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 title claims abstract description 18
- 238000010168 coupling process Methods 0.000 title claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000605 extraction Methods 0.000 claims abstract description 19
- 238000005086 pumping Methods 0.000 claims abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 239000003546 flue gas Substances 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000010025 steaming Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000284 extract Substances 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010009866 Cold sweat Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Abstract
The utility model relates to a kind of, and the machine furnace waste heat coupling with pressure matcher utilizes system, including turbine low pressure cylinder, pressure matcher, steam air heater, air preheater and low-level (stack-gas) economizer；Pressure matcher input terminal is connect by the steam discharge extraction line of low pressure (LP) cylinder pump-line and connection low pressure (LP) cylinder exhaust pipe with turbine low pressure cylinder, for under the driving that steam turbine low-pressure is evacuated, steam turbine low-pressure exhaust is extracted, steam of the pressure between low-pressure pumping steam and low pressure steam discharge is generated；The input terminal of steam air heater is connect by jet chimney with pressure matcher output end, output end is connect with air preheater, for being preheated by steam to the cold wind, the secondary cold wind that enter steam air heater, and a cold wind, the secondary cold wind after preheating are exported to air preheater；Air preheater is connect with low-level (stack-gas) economizer, and low-level (stack-gas) economizer is connected with circulating water inlet road and circulating water outlet pipe road.The utility model solves the problems, such as Steam Turbine exhaust steam waste heat utilization.
Description
Technical field
The utility model belongs to thermal power generating technology field more particularly to a kind of machine furnace waste heat coupling with pressure matcher
Utilize system.
Background technique
For fired power generating unit, the energy that turbine discharge is taken away is huge, and the exhaust temperature of wet type cooling unit is up to 30-50
DEG C, the exhaust temperature of air cooling unit is up to 60-70 DEG C.Effectively recycling steam turbine exhaust heat is a problem, main to show
At two aspects: first is that the energy level grade of turbine discharge is not high, the applicable space very little of low temperature steam discharge；Second is that steam turbine is arranged
The specific volume of vapour is very big, if directly exchanging heat using steam discharge, needs to design very big heat exchanger and associated conduit, increases equipment and throw
Money and operating cost, make energy saving profit have a greatly reduced quality.
Utility model content
The purpose of the utility model is to provide a kind of, and the machine furnace waste heat coupling with pressure matcher utilizes system, to solve vapour
Take turns unit exhaust steam waste heat utilization problem.
The utility model provides a kind of machine furnace waste heat coupling with pressure matcher using system, including steam turbine low-pressure
Cylinder, pressure matcher, steam air heater, air preheater and low-level (stack-gas) economizer；
Pressure matcher input terminal passes through low pressure (LP) cylinder pump-line and the steam discharge extraction line of connection low pressure (LP) cylinder exhaust pipe
It is connect with turbine low pressure cylinder, for passing through steam discharge under the driving for the steam turbine low-pressure pumping that low pressure (LP) cylinder pump-line exports
Extraction line extracts steam turbine low-pressure exhaust, generates steam of the pressure between low-pressure pumping steam and low pressure steam discharge；
The input terminal of steam air heater is connect by jet chimney with pressure matcher output end, the output end and air of steam air heater
Preheater connection；The steam that steam air heater is used to export by jet chimney to a cold wind of entrance steam air heater, secondary cold wind into
Row preheating, and a cold wind, the secondary cold wind after preheating are exported to air preheater, absorb flue gas heat；
Air preheater is connect with low-level (stack-gas) economizer, and low-level (stack-gas) economizer is connected with circulating water inlet road and recirculated water water outlet
Pipeline.
Further, low pressure (LP) cylinder pump-line includes the first low pressure (LP) cylinder pump-line and the second low pressure (LP) cylinder pump-line.
Further, the first low pressure (LP) cylinder pump-line and the second low pressure (LP) cylinder pump-line are respectively equipped with the of adjustable aperture
One valve and the second valve.
Further, steam discharge extraction line is equipped with the third valve of adjustable aperture.
Further, circulating water inlet road is equipped with the 4th valve of adjustable aperture.
According to the above aspect of the present invention, utilizing system by the machine furnace waste heat coupling with pressure matcher, following technology effect is produced
Fruit:
1, the specific volume of turbine discharge is reduced using pressure matcher, makes to be difficult the turbine discharge directly utilized originally
Waste heat is recycled.
2, recycle unit exhausted spare heat can a part of boiler smoke of offset use so that in low-level (stack-gas) economizer system
Flue gas thermal discharge increases, and condensed water caloric receptivity increases, and the steam extraction usage amount of heat regenerative system is reduced.
3, for conventional system, atmospheric temperature is lower, heats the defeated of the vapour-gas vapour-gas steam air heater needs of cold wind
It is more to enter heat, extracted steam from turbine consumption is bigger, and the decline of the economic benefit of unit is more obvious.And for the utility model and
Speech, extraneous steam temperature is lower, and the heat transfer temperature difference between steam turbine steam discharge and cold wind is bigger, and heat exchange efficiency is higher, and the waste heat of machine furnace coupling is received
Benefit is bigger.
4, the cooling due to part turbine discharge in vapour-gas vapour-gas steam air heater, so that original recirculated water is (clammy
Unit) dosage reduction, corresponding water circulating pump power consumption reduction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of machine furnace waste heat coupling with pressure matcher of the utility model utilizes system.
Figure label:
Cold wind of 1-；Bis- cold wind of 2-；3- vapour-gas vapour-gas steam air heater；4- air preheater；5- low-level (stack-gas) economizer；6-
To deduster flue gas；7- circulating water inlet road；8- circulating water outlet pipe road；9- turbine low pressure cylinder；10- low pressure (LP) cylinder exhaust pipe
Road；12- pressure matcher；13- jet chimney；14- drain water piping；15- the first low pressure (LP) cylinder pump-line；The second low pressure (LP) cylinder of 16-
Pump-line；17- steam discharge extraction line.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Join and present embodiments provide a kind of machine furnace waste heat coupling with pressure matcher shown in Fig. 1 using system, including vapour
Turbine low pressure (LP) cylinder 9, pressure matcher 12, vapour-gas vapour-gas steam air heater 3, air preheater 4 and low-level (stack-gas) economizer 5.Pressure match
12 input terminal of device is low with steam turbine by the steam discharge extraction line 17 of low pressure (LP) cylinder pump-line and connection low pressure (LP) cylinder exhaust pipe 10
Cylinder pressure 9 connects, for passing through steam discharge extraction line 17 under the driving for the steam turbine low-pressure pumping that low pressure (LP) cylinder pump-line exports
Steam turbine low-pressure exhaust is extracted, the stable steam of pressure of the pressure between low-pressure pumping steam and low pressure steam discharge is generated.
The input terminal of vapour-gas vapour-gas steam air heater 3 is connect by jet chimney 13 with 12 output end of pressure matcher, vapour-gas
The output end of vapour-gas steam air heater 3 is connect with air preheater 4；Vapour-gas vapour-gas steam air heater 3 is used to export by jet chimney 13
Steam the cold wind, the secondary cold wind that enter vapour-gas vapour-gas steam air heater 3 are preheated, and will be primary cold after preheating
Wind, secondary cold wind are exported to air preheater 4, absorb flue gas heat.Air preheater 4 is connect with low-level (stack-gas) economizer 5, and low temperature saves
Coal device 5 is connected with circulating water inlet road 7 and circulating water outlet pipe road 8.
Machine furnace waste heat coupling provided in this embodiment with pressure matcher utilizes system, is driven using steam turbine low-pressure steam extraction
Dynamic pressure adaptation 12 extracts steam turbine low-pressure steam discharge, generates steam of the pressure between low-pressure pumping steam and steam discharge and enters vapour-
Gas steam air heater 3 preheats cold wind 1 of boiler, secondary cold wind 2, and it is pre- that first and second cold wind after preheating goes successively to air
Hot device 4 absorbs flue gas heat.
Due to the input of turbine discharge heat, so that thermal discharge of the flue gas in air preheater 4 is reduced, flue gas is carried
More heats enter 5 heat release of low-level (stack-gas) economizer and intake to recirculated water, and the recirculated water water outlet after heat absorption returns to steam turbine backheat system
System reduces heat regenerative system steam extraction amount, and the steam extraction of saving continues to do work in Steam Turbine, realizes energy cascade utilization, improves machine
Group whole efficiency.
The effect of low-level (stack-gas) economizer 5 is the fume afterheat exported using air preheater 4 in system, is heated from cryogenic temperature condensation
The partial coagulation water that water system (passing through circulating water inlet road 7) extracts, the condensed water after heating pass through circulating water outlet pipe road 8
Steam Turbine Regenerative System is returned to continue to absorb heat.
In the present embodiment, low pressure (LP) cylinder pump-line includes the first low pressure (LP) cylinder pump-line 15 and the second low pressure (LP) cylinder exhaust tube
Road 16 can be such that steam turbine low-pressure is evacuated from different by the first low pressure (LP) cylinder pump-line 15 and the second low pressure (LP) cylinder pump-line 16
Extraction line extracts, convenient for control and maintenance.
In the present embodiment, the first low pressure (LP) cylinder pump-line 15, the second low pressure (LP) cylinder pump-line 16, steam discharge extraction line 17
And it is equipped with valve on circulating water inlet road 7, it, can basis under different unit loads by the adjustable valve of aperture
The parameters such as extraneous cold wind temperature, turbine discharge temperature and displacement, the coupling of the co- controlling machine furnace waste heat utilize system.
In the present embodiment, first is respectively equipped on the first low pressure (LP) cylinder pump-line 15 and the second low pressure (LP) cylinder pump-line 16
Valve and the second valve control steam extraction share according to unit different load Operating condition adjustment difference extraction line valve opening, to protect
Demonstrate,prove the safe and economic operation of unit.
In the present embodiment, steam discharge extraction line 17 is equipped with the third valve of adjustable aperture, by adjusting third valve
Aperture, control enters the displacement of pressure matcher 12, remaining turbine discharge enters the original steam discharge cooling system of unit
System.
In the present embodiment, circulating water inlet road 7 is equipped with the 4th valve of adjustable aperture, by adjusting the 4th valve
Aperture control condensed water extraction amount.
It should be noted that the utility model is different with the energy-saving effect in air cooling unit in wet type cooling unit.Theoretically vapour
Wheel unit exhaust temperature is higher, and the energy that steam discharge is contained is bigger, utilizes system using the machine furnace waste heat coupling of the utility model
Energy-saving effect is more obvious.Meanwhile the cold north of arid, first and second wind-warm syndrome in winter are generally using the region of air cooling unit
Degree is very low, and heat transfer temperature difference is big in vapour-gas vapour-gas steam air heater, and heat exchanger using effect is obvious.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Several improvements and modifications out, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (5)
1. a kind of machine furnace waste heat coupling with pressure matcher utilizes system, which is characterized in that including turbine low pressure cylinder, pressure
Adaptation, steam air heater, air preheater and low-level (stack-gas) economizer；
The pressure matcher input terminal passes through low pressure (LP) cylinder pump-line and the steam discharge extraction line of connection low pressure (LP) cylinder exhaust pipe
It is connect with the turbine low pressure cylinder, under the driving of steam turbine low-pressure that the low pressure (LP) cylinder pump-line exports pumping,
Steam turbine low-pressure exhaust is extracted by the steam discharge extraction line, generates steaming of the pressure between low-pressure pumping steam and low pressure steam discharge
Vapour；
The input terminal of the steam air heater is connect by jet chimney with the pressure matcher output end, the output of the steam air heater
End is connect with the air preheater；The steam that the steam air heater is used to export by the jet chimney is to the entrance warm wind
A cold wind, the secondary cold wind of device are preheated, and a cold wind, the secondary cold wind after preheating are exported to the air preheat
Device absorbs flue gas heat；
The air preheater is connect with the low-level (stack-gas) economizer, and the low-level (stack-gas) economizer is connected with circulating water inlet road and follows
Ring water outlet conduit.
2. a kind of machine furnace waste heat coupling with pressure matcher according to claim 1 utilizes system, which is characterized in that institute
Stating low pressure (LP) cylinder pump-line includes the first low pressure (LP) cylinder pump-line and the second low pressure (LP) cylinder pump-line.
3. a kind of machine furnace waste heat coupling with pressure matcher according to claim 2 utilizes system, which is characterized in that institute
It states the first low pressure (LP) cylinder pump-line and the second low pressure (LP) cylinder pump-line is respectively equipped with the first valve and the second valve of adjustable aperture
Door.
4. a kind of machine furnace waste heat coupling with pressure matcher according to claim 3 utilizes system, which is characterized in that institute
State the third valve that steam discharge extraction line is equipped with adjustable aperture.
5. a kind of machine furnace waste heat coupling with pressure matcher according to claim 4 utilizes system, which is characterized in that institute
State the 4th valve that circulating water inlet road is equipped with adjustable aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820403722.5U CN208282077U (en) | 2018-03-23 | 2018-03-23 | It is a kind of with pressure matcher machine furnace waste heat coupling utilize system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820403722.5U CN208282077U (en) | 2018-03-23 | 2018-03-23 | It is a kind of with pressure matcher machine furnace waste heat coupling utilize system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208282077U true CN208282077U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820403722.5U Expired - Fee Related CN208282077U (en) | 2018-03-23 | 2018-03-23 | It is a kind of with pressure matcher machine furnace waste heat coupling utilize system |
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| CN (1) | CN208282077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534126A (en) * | 2018-03-23 | 2018-09-14 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | It is a kind of with pressure matcher machine stove waste heat coupling utilize system |
-
2018
- 2018-03-23 CN CN201820403722.5U patent/CN208282077U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534126A (en) * | 2018-03-23 | 2018-09-14 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | It is a kind of with pressure matcher machine stove waste heat coupling utilize system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181225 |