CN106989383A - A kind of two grades of deoxygenation energy conserving systems - Google Patents
A kind of two grades of deoxygenation energy conserving systems Download PDFInfo
- Publication number
- CN106989383A CN106989383A CN201710201971.6A CN201710201971A CN106989383A CN 106989383 A CN106989383 A CN 106989383A CN 201710201971 A CN201710201971 A CN 201710201971A CN 106989383 A CN106989383 A CN 106989383A
- Authority
- CN
- China
- Prior art keywords
- grades
- steam
- deaerating
- valve
- high pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006392 deoxygenation reaction Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims abstract description 7
- 230000006837 decompression Effects 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- QFAXIZQBSCGJMA-UHFFFAOYSA-N mercury;hydrate Chemical compound O.[Hg] QFAXIZQBSCGJMA-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Water Treatments (AREA)
Abstract
A kind of two grades of deoxygenation energy conserving systems, for by thermal power plant boiler, steam turbine and generating set into steam supply equipment, the steam heating pipeline at least connecting user all the way is picked out in steam turbine, two-way steam pipework is tapped out in described steam heating pipeline, first steam pipework is connected to a high pressure water pump steam turbine by valve, by the high pressure water pump steam turbine pick out after be connected to one-level deaerating heater；Second steam pipework is directly connected in two grades of deaerating heaters by valve, normal temperature water inlet pipe is connected to the cooling water inlet of one-level deaerating heater and two grades of deaerating heaters by valve respectively all the way, the one-level deaerating heater outlet is connected to by pipeline and valve on the pipeline for the cooling water inlet that normal temperature water inlet pipe connects two grades of deaerating heaters, and two grades of deaerating heater outlets are communicated in described thermal power plant boiler by pipeline, valve and the Boiler High Pressure feed pump coaxial with high pressure water pump steam turbine；It has simple in construction, easy to use and reliable, the features such as energy-saving effect is obvious.
Description
Technical field
The present invention relates to a kind of two grades of deoxygenation energy conserving systems for full back pressure steam supply steam power plant, belong to steam supply equipment
Supporting deoxygenation field of energy-saving technology.
Background technology
At present, the station service power consumption rate of full back pressure steam supply steam power plant is 20% or so, and wherein Electric Traction high-pressure feed water pump motor is about
Account for 30%；In addition, the inflow temperature requirement of generally Circulating Fluidized Bed Boiler is more than 150 DEG C, corresponding heating vapour pressure
Power is about 0.55Mpa, available without step heat energy using single-stage high voltage deaerating heater；Therefore existing full back pressure steam supply is warm
The heat utilization rate of power plant is low, severely impacts the benefits of production and management of steam power plant.
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and provide a kind of simple in construction, it is easy to use can
Lean on, the obvious two grades of deoxygenation energy conserving systems of energy-saving effect.
The purpose of the present invention is completed by following technical solution, a kind of two grades of deoxygenation energy conserving systems, for by heat
Boiler of power plant, steam turbine and generating set into steam supply equipment, picked out in steam turbine at least all the way connect user steaming
Two-way steam pipework is tapped out in vapour heat supplying pipeline, described steam heating pipeline, the first steam pipework is connected to by valve
One high pressure water pump steam turbine, by the high pressure water pump steam turbine pick out after be connected to one-level deaerating heater；Second steam pipe
Road is directly connected in two grades of deaerating heaters by valve, and normal temperature water inlet pipe is connected to one-level deoxygenation by valve respectively and added all the way
The cooling water inlet of hot device and two grades of deaerating heaters, the one-level deaerating heater outlet is connected to normal temperature by pipeline and valve
Water inlet pipe is connected on the cooling water inlet pipeline of two grades of deaerating heaters, and the outlet of two grades of deaerating heaters by pipeline, valve with
And the Boiler High Pressure feed pump coaxial with high pressure water pump steam turbine is communicated in described thermal power plant boiler.
As preferred：Vapor (steam) temperature in the first described steam pipework is not less than 190 DEG C, by high pressure water pump steamer
Decompression, which is done work and is cooled to, after machine and one-level deaerating heater is not less than 100 DEG C, then by valve and a low pressure feed water pump simultaneously
Connect and enter two grades of deaerating heaters after normal temperature water inlet pipe, the steam in the second steam pipework is directly entered two grades of deaerating heaters
Afterwards, obtained in the outlet of two grades of deaerating heaters and be not less than 145 DEG C, directly input the hot water of thermal power plant boiler.
The invention belongs to improvements over the prior art, it has simple in construction, and easy to use and reliable, energy-saving effect is substantially etc.
Feature.
Brief description of the drawings
Fig. 1 is the whole system theory of constitution figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail：Shown in Fig. 1, a kind of two grades of deoxygenation sections of the present invention
Can system, for the steam supply equipment being made up of thermal power plant boiler 1, steam turbine 2 and generator 3, picked out in steam turbine 2 to
Two-way steam pipework is tapped out in few steam heating pipeline 9 for connecting user all the way, described steam heating pipeline 9, first steams
Vapor pipeline 10 is connected to a high pressure water pump steam turbine 6 by valve, by the high pressure water pump steam turbine 6 pick out after be connected to one
Level deaerating heater 4；Second steam pipework 11 is directly connected in two grades of deaerating heaters 5 by valve, all the way normal temperature water inlet pipe
12 are connected to the cooling water inlet of one-level deaerating heater 4 and two grades of deaerating heaters 5 by valve respectively, and the one-level deoxygenation adds
The hot outlet of device 4 is connected to normal temperature water inlet pipe 12 by pipeline and valve and connected on the cooling water inlet pipeline of two grades of deaerating heaters 5,
And two grades of outlets of deaerating heater 5 pass through pipeline, valve and the Boiler High Pressure feed pump coaxial with high pressure water pump steam turbine 6
7 are communicated in described thermal power plant boiler 1.
Shown in figure, the vapor (steam) temperature in the first described steam pipework 10 is not less than 190 DEG C, by high-pressure feed water mercury vapour
Decompression, which is done work and is cooled to, after turbine 6 and one-level deaerating heater 4 is not less than 100 DEG C, then passes through valve and a low pressure feed water
Pump 8 is simultaneously connect into two grades of deaerating heaters 5 after normal temperature water inlet pipe 12, and the steam in the second steam pipework 11 is directly entered two grades
After deaerating heater 5, the hot water for being not less than 145 DEG C, inputting thermal power plant boiler 1 is obtained in the outlet of two grades of deaerating heaters 5.
The present invention makes full use of turbine discharge and low pressure deaerating heater steam admission enthalpy difference ladder using two grades of deaerating heaters
Level heat energy, by configuring feed pump turbine, mechanical energy is converted into by the step heat energy, Boiler High Pressure pump motor is substituted, from
And save station service.
Claims (2)
1. a kind of two grades of deoxygenation energy conserving systems, for by thermal power plant boiler, steam turbine and generating set into steam supply equipment,
The steam heating pipeline at least connecting user all the way is picked out in steam turbine, it is characterised in that divide in described steam heating pipeline
Two-way steam pipework is picked out, the first steam pipework is connected to a high pressure water pump steam turbine by valve, by the high pressure water pump
Steam turbine is connected to one-level deaerating heater after picking out；Second steam pipework is directly connected in two grades of deoxygenations by valve and heated
Device, all the way normal temperature water inlet pipe the cooling water inlet of one-level deaerating heater and two grades of deaerating heaters is connected to by valve respectively,
The one-level deaerating heater outlet is connected to the cold water that normal temperature water inlet pipe connects two grades of deaerating heaters by pipeline and valve
In inlet ductwork, and two grades of deaerating heater outlets pass through pipeline, valve and the boiler coaxial with high pressure water pump steam turbine
High pressure water pump is communicated in described thermal power plant boiler.
2. two grades of deoxygenation energy conserving systems according to claim 1, it is characterised in that the steaming in the first described steam pipework
Stripping temperature is not less than 190 DEG C, and decompression is done work and is cooled to not after high pressure water pump steam turbine and one-level deaerating heater
Less than 100 DEG C, then by valve and a low pressure feed water pump and connect after normal temperature water inlet pipe into two grades of deaerating heaters, steamed second
Steam in vapor pipeline is directly entered after two grades of deaerating heaters, is obtained in the outlet of two grades of deaerating heaters and is not less than 145
DEG C, directly input the hot water of thermal power plant boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710201971.6A CN106989383A (en) | 2017-03-30 | 2017-03-30 | A kind of two grades of deoxygenation energy conserving systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710201971.6A CN106989383A (en) | 2017-03-30 | 2017-03-30 | A kind of two grades of deoxygenation energy conserving systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106989383A true CN106989383A (en) | 2017-07-28 |
Family
ID=59413079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710201971.6A Pending CN106989383A (en) | 2017-03-30 | 2017-03-30 | A kind of two grades of deoxygenation energy conserving systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106989383A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763485A (en) * | 2014-04-30 | 2015-07-08 | 南京博沃科技发展有限公司 | Thermodynamic system of concurrent heating ultra-high pressure/subcritical backpressure heat supply unit |
| CN204880083U (en) * | 2014-12-24 | 2015-12-16 | 浙江省电力设计院 | Cogeneration of heat and power backpressure formula heat regenerative system |
| CN205957142U (en) * | 2016-07-30 | 2017-02-15 | 河南晋煤天庆煤化工有限责任公司 | High -pressure deaerator remains vapour power generation system |
| CN206608941U (en) * | 2017-03-30 | 2017-11-03 | 德清县中能热电有限公司 | Two grades of deoxygenation energy conserving systems |
-
2017
- 2017-03-30 CN CN201710201971.6A patent/CN106989383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763485A (en) * | 2014-04-30 | 2015-07-08 | 南京博沃科技发展有限公司 | Thermodynamic system of concurrent heating ultra-high pressure/subcritical backpressure heat supply unit |
| CN204880083U (en) * | 2014-12-24 | 2015-12-16 | 浙江省电力设计院 | Cogeneration of heat and power backpressure formula heat regenerative system |
| CN205957142U (en) * | 2016-07-30 | 2017-02-15 | 河南晋煤天庆煤化工有限责任公司 | High -pressure deaerator remains vapour power generation system |
| CN206608941U (en) * | 2017-03-30 | 2017-11-03 | 德清县中能热电有限公司 | Two grades of deoxygenation energy conserving systems |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170728 |
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| RJ01 | Rejection of invention patent application after publication |