CN205591968U - Thermal power plant low pressure rotor optical axis heating system - Google Patents
Thermal power plant low pressure rotor optical axis heating system Download PDFInfo
- Publication number
- CN205591968U CN205591968U CN201620383445.7U CN201620383445U CN205591968U CN 205591968 U CN205591968 U CN 205591968U CN 201620383445 U CN201620383445 U CN 201620383445U CN 205591968 U CN205591968 U CN 205591968U
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- China
- Prior art keywords
- low pressure
- rotor
- cylinder
- heating
- optical axis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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Abstract
The utility model relates to a thermal power plant low pressure rotor optical axis heating system, including low pressure jar, heating network heater, cooling blower, adjusting valve. During the winter heating, close adjusting valve, the intermediate pressure cylinder steam extraction is whole to be used for heating the heat supply network circulating water, and under the condition that certain a time heat supply network leaving water temperature is the same, the flow of increase heat supply network circulating water is taken away intermediate pressure cylinder steam extraction heat is whole, has increased the heat supply area simultaneously. Circulating water system stops transport, for guaranteeing the operation of low pressure rotor safety and stability, increases cooling blower and cools off the low pressure rotor, guarantees unit operation safety.
Description
Technical field
This utility model relates to a kind of Thermal Power Station low pressure rotor optical axis heating system.
Background technology
Recently as country, energy-saving and emission-reduction are required that dynamics is continuously increased, various energy-saving and emission-reduction
The continuous popularization and application of technology.Meanwhile, the gross coal consumption rate of thermal power plant unit relatively pure condensate unit has larger amplitude
The decline of degree.But, former thermal power plant unit is extraction and condensing unit, and unit pure condensate in summer runs, circulation
Water system participation work, has certain cold source energy.During Winter heat supply, unit steam extraction and condensing
Mode is run, for preventing low pressure rotor generation action of blast, it is necessary to control the unit heating amount of drawing gas,
Circulation remains a need for work to cool down remaining condensing part simultaneously, the most old certain cold
Source is lost.
Because above-mentioned defect, the design people, the most in addition research and innovation, to founding one
Plant Thermal Power Station's low pressure rotor optical axis heating system so that it is have more the value in industry.
Utility model content
For solving above-mentioned technical problem, the purpose of this utility model is to provide a kind of routine that solves and supplies
Hot systems low pressure (LP) cylinder lowest current amount restriction heating load, cold energy lose the heating power of serious defect and send out
Power plant's low pressure rotor optical axis heating system.
This utility model Thermal Power Station low pressure rotor optical axis heating system, including: intermediate pressure cylinder,
Low pressure (LP) cylinder, electromotor, the rotor of intermediate pressure cylinder, the rotor of low pressure (LP) cylinder, the rotor coaxial of electromotor
Drive, also include that heat exchangers for district heating, the venthole of medium pressure cylinder lead to low vapour pressure passage excessively respectively
Connect the air intake of described cylinder pressure and by hot vapour channel connection heat exchangers for district heating, described vapour pressure
Passage is provided with control valve, and described heat exchangers for district heating is communicated with entering of heat supply network return water system
The mouth of a river and the outlet of connection heat supply network water system；
Heating Period, the rotor in described low pressure (LP) cylinder is set to back pressure rotor, and described back pressure rotor is
Optical axis without impeller.
Further, described low pressure (LP) cylinder connects cooling blower by cold air duct.
Further, described low pressure (LP) cylinder is provided with air outlet.
Further, the water inlet of described heat exchangers for district heating is by inlet channel and heat supply network backwater system
System connection, the outlet of described heat exchangers for district heating is connected with heat supply network water system by outlet conduit,
Described outlet conduit is provided with the first valve, and described inlet channel is provided with the second valve.
By such scheme, this utility model at least has the advantage that
This utility model low pressure rotor optical axis heating system is on the basis of steam extraction heat supply unit
Transforming, all removed by the blade of low pressure rotor, low pressure rotor is only an optical axis, machine
Group interval in summer is run according to normal low pressure rotor；During Winter heat supply, intermediate pressure cylinder steam discharge is whole
For heat supply, meanwhile, circulation is stopped transport, and arranges a cooling blower and carries out low pressure rotor
Cooling.This heating system can increase the area of heat-supply service of unit, unit energy-saving and emission-reduction.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand
Technological means of the present utility model, and can be practiced according to the content of description, below with this
The preferred embodiment of utility model and coordinate accompanying drawing describe in detail as after.
Accompanying drawing explanation
The fortune in winter of Tu1Shi this utility model Thermal Power Station low pressure rotor optical axis heating system
Row flow chart；
The fortune in summer of Tu2Shi this utility model Thermal Power Station low pressure rotor optical axis heating system
Row flow chart；
Intermediate pressure cylinder 1, control valve 2, low pressure (LP) cylinder 3, heat exchangers for district heating 4, the first valve 5,
Second valve 6, cooling blower 7, electromotor 8, condenser 9, cooling tower 10.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is made further
Describe in detail.Following example are used for illustrating this utility model, but it is new to be not limited to this practicality
The scope of type.
Traditional heating mode is mainly reformed, at Heating Period by pure condensate by this utility model
Rotor is set to the back pressure rotor dallied without the optical axis of impeller, high to give full play to back pressure rotor
Effect heat supply advantage, and at non-heating period, the most still uses traditional pure condensate rotor, takes being not required to
On the premise of Nuan, it is used for heat energy as far as possible generating electricity, and then, by the switching of back pressure pure condensate,
Improving energy-saving effect, meanwhile, this utility model has also carried out a series of improvement to system, with
Make energy-saving effect more preferably.
If Fig. 1 is to shown in 2, the present embodiment Thermal Power Station low pressure rotor optical axis heating system,
Including intermediate pressure cylinder 1, low pressure (LP) cylinder 3, electromotor 8, the rotor of intermediate pressure cylinder, the turning of low pressure (LP) cylinder
Son, the rotor coaxial of electromotor drive, and also include heat exchangers for district heating 4, going out of medium pressure cylinder
Steam ports leads to the low air intake crossing cylinder pressure described in vapour pressure channel connection and respectively by hot vapour passage
Connection heat exchangers for district heating, described vapour pressure passage is provided with control valve 2, described heat exchangers for district heating
On be communicated with heat supply network return water system water inlet and connection heat supply network water system outlet；
Heating Period, the rotor in described low pressure (LP) cylinder is set to back pressure rotor, and described back pressure rotor is
Optical axis without impeller.
The water inlet of described heat exchangers for district heating is connected with heat supply network return water system by inlet channel, institute
The outlet stating heat exchangers for district heating is connected with heat supply network water system by outlet conduit, described water outlet
Pipeline is provided with the first valve 5, and described inlet channel is provided with the second valve 6.
Described low pressure (LP) cylinder connects cooling blower 7 by cold air duct, and described low pressure (LP) cylinder is provided with out
Air port.
Non-heating period, also includes cooling tower, and described low pressure (LP) cylinder connects condenser, recirculated water backwater
Cooled down by recirculated water water return pipeline input cooling tower, colder via the input of recirculated water water supply line
In condenser.
The present embodiment Thermal Power Station low pressure rotor optical axis heating system, extraction and condensing unit is north heat
The thermal power plant unit in power power plant, in summer, unit pure condensate mode is run, and circulation puts into operation,
Unit only generates electricity；During Winter heat supply, it is adjusted adopting of unit by control valve 2
The warm amount of drawing gas, heating is drawn gas and is carried out heat supply, for preventing low pressure rotor for heating heat supply network recirculated water
Blade generation air blast, should enter low pressure (LP) cylinder by some steam, unit the most not only heat supply but also send out
Electricity.
Low pressure rotor optical axis heating system of the present utility model, is by whole for the blade of low pressure rotor
Removing, unit was stopped transport in summer；During Winter heat supply, intermediate pressure cylinder steam discharge is completely used for heating heat
Net recirculated water carries out heat supply, increases considerably the heat capacity of unit, meanwhile, circulation
Stop transport, decrease with water loss and water circulating pump power consumption.For ensureing low pressure rotor optical axis heat supply system
The safe operation of system, arranges cooling blower and cools down low pressure rotor.
On the basis of extraction and condensing unit, all removing low-pressure rotor blade, intermediate pressure cylinder is arranged
Vapour is completely used for heating heat supply network recirculated water, and unit heat capacity increases, and low pressure (LP) cylinder does not enter vapour, follows
Ring water system shutdown；
For ensureing the safety of low pressure rotor optical axis heating system, cooling blower is set to low pressure rotor
Optical axis cools down.
The above is only preferred implementation of the present utility model, is not limited to this practicality
Novel, it is noted that for those skilled in the art, without departing from this
On the premise of utility model know-why, it is also possible to make some improvement and modification, these improve
Also protection domain of the present utility model is should be regarded as with modification.
Claims (4)
1. Thermal Power Station's low pressure rotor optical axis heating system, it is characterised in that including:
Intermediate pressure cylinder, low pressure (LP) cylinder, electromotor, the rotor of intermediate pressure cylinder, the rotor of low pressure (LP) cylinder, electromotor
Rotor coaxial drives, and also includes that heat exchangers for district heating, the venthole of medium pressure cylinder lead to low mistake respectively
The air intake of cylinder pressure described in vapour pressure channel connection and by hot vapour channel connection heat exchangers for district heating,
Described vapour pressure passage is provided with control valve, and described heat exchangers for district heating is communicated with heat supply network backwater
The water inlet of system and the outlet of connection heat supply network water system；
Heating Period, the rotor in described low pressure (LP) cylinder is set to back pressure rotor, and described back pressure rotor is
Optical axis without impeller.
Thermal Power Station the most according to claim 1 low pressure rotor optical axis heating system,
It is characterized in that, described low pressure (LP) cylinder connects cooling blower by cold air duct.
Thermal Power Station the most according to claim 1 low pressure rotor optical axis heating system,
It is characterized in that, described low pressure (LP) cylinder is provided with air outlet.
Thermal Power Station the most according to claim 1 low pressure rotor optical axis heating system,
It is characterized in that, the water inlet of described heat exchangers for district heating is by inlet channel and heat supply network return water system
Connection, the outlet of described heat exchangers for district heating is connected with heat supply network water system by outlet conduit,
Described outlet conduit is provided with the first valve, and described inlet channel is provided with the second valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620383445.7U CN205591968U (en) | 2016-04-29 | 2016-04-29 | Thermal power plant low pressure rotor optical axis heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620383445.7U CN205591968U (en) | 2016-04-29 | 2016-04-29 | Thermal power plant low pressure rotor optical axis heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205591968U true CN205591968U (en) | 2016-09-21 |
Family
ID=56932418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620383445.7U Expired - Fee Related CN205591968U (en) | 2016-04-29 | 2016-04-29 | Thermal power plant low pressure rotor optical axis heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205591968U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060904A (en) * | 2017-05-05 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Steam turbine high back pressure transformation birotor exchanges accuracy guarantee system |
| CN107191232A (en) * | 2017-06-06 | 2017-09-22 | 大唐东北电力试验研究所有限公司 | Electric heating unit heating system |
-
2016
- 2016-04-29 CN CN201620383445.7U patent/CN205591968U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060904A (en) * | 2017-05-05 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Steam turbine high back pressure transformation birotor exchanges accuracy guarantee system |
| CN107060904B (en) * | 2017-05-05 | 2023-07-07 | 大唐东北电力试验研究所有限公司 | Double-rotor interchange precision guaranteeing system for high back pressure transformation of steam turbine |
| CN107191232A (en) * | 2017-06-06 | 2017-09-22 | 大唐东北电力试验研究所有限公司 | Electric heating unit heating 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 |
Granted publication date: 20160921 Termination date: 20180429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |