CN207962802U - A kind of indirect air cooling steam turbine high back pressure heating system - Google Patents
A kind of indirect air cooling steam turbine high back pressure heating system Download PDFInfo
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- CN207962802U CN207962802U CN201820289902.5U CN201820289902U CN207962802U CN 207962802 U CN207962802 U CN 207962802U CN 201820289902 U CN201820289902 U CN 201820289902U CN 207962802 U CN207962802 U CN 207962802U
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Abstract
This application involves a kind of indirect air cooling steam turbine high back pressure heating systems, including condenser, heat supply network return water main pipe and heat supply network return water to condenser inlet pipeline, heat supply network return water main pipe is connect with heat supply network return water to condenser inlet pipeline, heat supply network return water to condenser inlet pipeline is divided into two tunnels, respectively the first inlet pipeline and the second inlet pipeline, first inlet pipeline is connected to by the side entrances condenser A with condenser, and is connect with the first outlet pipeline by condenser A side outlets；Second inlet pipeline is connected to by the side entrances condenser B with condenser, and is connect with the second outlet pipeline by condenser B side outlets；First outlet pipeline is connect after merging with the second outlet pipeline with heat supply network return water main pipe, and on-Line Monitor Device is equipped on the first outlet pipeline and the second outlet pipeline.Heat supply network return water is accessed condenser by this system, and the waste heat of recycling condenser steam exhaust discharge carries out resident's heating, reduces cold source energy, promote heat capacity, improves the thermal efficiency of the indirect air cooling for thermo-power station.
Description
Technical field
This application involves heat supply process field more particularly to a kind of indirect air cooling steam turbine high back pressure heating systems.
Background technology
As the shortage of the energy and the requirement of energy-saving and emission-reduction increasingly improve, the comprehensive utilization technique of the energy is constantly carrying
It rises.As big power consumer, the emphasis of the energy saving always industrial energy saving of thermal power plant, continuous with coal price is risen, energy saving
Emission reduction is also that power plant itself saves operation cost, the important means increased economic efficiency.
Steam turbine intermediate extraction respectively is all made of to heat heat supply network recirculated water for the heat-supplying mode of thermo-power station at present, then is sent to heat
User carries out resident's heating.The steam that steam turbine finishes work(enters condenser, and the vaporization of steam exhaust is dived by cool circulation water
The torrid zone is walked, then is put to idle discharge by cooling tower, realizes the Rankine cycle of conventional thermal power plant.And the steam exhaust heat of cooling tower discharge is
The cold source energy of thermal power plant, cold source energy have accounted for 50% or so in the various thermodynamic loss of thermal power plant, have constituted huge energy
Source wastes.
Therefore, how the exhaust steam in steam turbine waste heat put to idle discharge effectively to be recycled, reduces low-temperature receiver damage to greatest extent
It loses, is for the current urgent problem to be solved of thermo-power station.
Utility model content
This application provides a kind of indirect air cooling steam turbine high back pressure heating systems, reduce heat source loss, improve indirectly empty
The cold thermal efficiency for thermo-power station.
This application provides a kind of indirect air cooling steam turbine high back pressure heating systems, including：Condenser, heat supply network return water main pipe
With heat supply network return water to condenser inlet pipeline, wherein
The heat supply network return water main pipe is connect with the heat supply network return water to condenser inlet pipeline, the heat supply network return water to condensing
Device inlet pipeline is divided into two tunnels, respectively the first inlet pipeline and the second inlet pipeline, and first inlet pipeline passes through condensing
The side entrances device A are connected to the condenser, and are connect with the first outlet pipeline by condenser A side outlets；Second water inlet
Pipeline is connected to by the side entrances condenser B with the condenser, and is connect with the second outlet pipeline by condenser B side outlets；
First outlet pipeline is connect after merging with second outlet pipeline with the heat supply network return water main pipe；
It is equipped with on-Line Monitor Device on first outlet pipeline and second outlet pipeline.
Optionally, it is equipped with dirt separator on first inlet pipeline and second inlet pipeline.
Optionally, the side entrances the condenser A are connect with the sides condenser A first pipe, the sides condenser A first pipe
It is connected to recirculated water return water main pipe；The condenser A side outlets are connect with the sides condenser A second pipe, the sides the condenser A
Two pipelines are connected to recirculated water water main pipe.
Optionally, the side entrances the condenser B are connect with the sides condenser B first pipe, the sides condenser B first pipe
It is connected to recirculated water water main pipe；The condenser B side outlets are connect with the sides condenser B second pipe, the sides the condenser B
Two pipelines are connected to recirculated water return water main pipe.
Optionally, condenser A side first pipes and the sides condenser A second pipe be respectively connected to cycle puddle catchment
Well.
Optionally, condenser B side first pipes and the sides condenser B second pipe be respectively connected to cycle puddle catchment
Well.
Optionally, the heat supply network return water to condenser inlet pipeline is equipped with water inlet total valve.
Optionally, the pipeline of the water inlet total valve front end is equipped with Draw off valve.
Optionally, first inlet pipeline, the second inlet pipeline, the first outlet pipeline, be all provided on the second outlet pipeline
There is electrically operated valve.
By above technical scheme, this application provides a kind of indirect air cooling steam turbine high back pressure heating systems, and heat supply network is returned
Water accesses condenser, to substitute original cool circulation water, to absorb the heat of exhaust steam in steam turbine；By steam turbine operation back pressure
Heat supply network return water temperature is heated to 70 DEG C or so by control under higher back pressure, to reduce cold source energy to greatest extent, is improved
The thermal efficiency of the indirect air cooling for thermo-power station, to achieve the purpose that increase heat capacity, improve economy.
Description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of indirect air cooling steam turbine high back pressure heating system schematic diagram provided by the present application.
Wherein, 1, condenser；2, heat supply network return water main pipe；3, heat supply network return water is to condenser inlet pipeline；4, the first water inlet pipe
Road；5, the second inlet pipeline；6, the side entrances condenser A；7, condenser A side outlets；8, the first outlet pipeline；9, the sides condenser B
Entrance；10, condenser B side outlets；11, the second outlet pipeline；12, on-Line Monitor Device；13, the sides condenser A first pipe；
14, the sides condenser A second pipe；15, the sides condenser B first pipe；16, the sides condenser B second pipe；17, water inlet total valve；
18, Draw off valve；19, dirt separator；20, heat supply network return water strainer；21, pumps for hot water supply net；22, heat supply network return water is total to condenser water inlet
Exhaust valve behind the door；23, the sides condenser A front water chamber wicket；24, the sides condenser A front water chamber exhaust valve；25, the sides condenser B Qian Shui
Room wicket；26, the sides condenser B front water chamber exhaust valve.
Specific implementation mode
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, other drawings may also be obtained based on these drawings.
It is a kind of indirect air cooling steam turbine high back pressure heating system schematic diagram provided by the present application referring to Fig. 1.
A kind of indirect air cooling steam turbine high back pressure heating system, including：Condenser 1, heat supply network return water main pipe 2 and heat supply network return water
To condenser inlet pipeline 3, wherein the heat supply network return water main pipe 2 is connect with the heat supply network return water to condenser inlet pipeline 3,
The heat supply network return water is described to bis- tunnels 3 Fen Wei of condenser inlet pipeline, respectively the first inlet pipeline 4 and the second inlet pipeline 5
First inlet pipeline 4 is connected to by the side entrances condenser A 6 with the condenser 1, and is gone out with first by condenser A side outlets 7
Water lines 8 connect；Second inlet pipeline 5 is connected to by the side entrances condenser B 9 with the condenser 1, and passes through condenser
B side outlets 10 are connect with the second outlet pipeline 11；First outlet pipeline 8 merge with second outlet pipeline 11 after with institute
State the connection of heat supply network return water main pipe 2；It is equipped with on-Line Monitor Device on first outlet pipeline 8 and second outlet pipeline 11
12。
The waste heat of cool circulation water recycling condenser steam exhaust discharge is occupied between this system mainly uses heat supply network recirculated water to substitute
People's heating, reduces cold source energy to greatest extent.Heat supply network return water enters the heat supply network return water to solidifying through the heat supply network return water main pipe 2
After vapour device inlet pipeline 3, first it is divided into two tunnels, respectively the first inlet pipeline 4 and the second inlet pipeline 5.Heat supply network return water passes through all the way
First inlet pipeline 4 enters the condenser 1 by the side entrances condenser A 6, is flowed by the condenser A side outlets 7
Go out；Another way heat supply network return water enters the condenser 1 through second inlet pipeline 5 by the side entrances condenser B 9, by institute
It states condenser B side outlets 10 and exits into second outlet pipeline 11, merge with the heat supply network return water of first outlet pipeline 8
Afterwards, into heat supply network return water main pipe 2.On-line monitoring dress is equipped on first outlet pipeline 8 and second outlet pipeline 11
Set 12.The on-Line Monitor Device 12 includes wireless pressure sensor, radio temperature sensor and monitoring device, is mainly used for pair
The pressure of system, temperature, flow are monitored online, it is ensured that this system normal operation in the case of controllable.
When this system is mainly used in carrying out high back pressure heat supply transformation to steam turbine, improvement cost can be greatly reduced.In base
The phase is built to the blade for selecting blade height in main steam turbine type selecting as 661mm, the unit outage time can be reduced to greatest extent,
Accomplish that switching half side condenser carries out system access, has accomplished not shut down the work for completing modernization system access, eliminate in construction
Conventional thermal power plant rotor when high back pressure is transformed return factory's transformation and caused by steam turbine stop transport the power generation loss of several months, to real
The maximization of economic benefit is showed.In the capital construction phase in main steam turbine type selecting, by exhaust stage blade under each working condition
The linear velocity comparing calculation of steam discharge leaving velocity and exhaust stage blade, this system have selected the blade that efficiency is slightly lower under operation condition in summer high
Degree be 661mm blade, the blade height for not selecting operation condition in summer efficiency slightly higher for 770mm exhaust stage blade so that
The back pressure ranges of the safe operation of steam turbine are relatively wide in range, i.e., higher in turbine back pressure, in the case of electric load is higher, final stage
For blade under the impact of big flow steam discharge, the anti-ability of losing of exhaust stage blade is higher, is calculated by main engine plants, is fully able to meet
The safety of exhaust stage blade under the conditions of high back pressure.It is carried out on the basis of not changing host low pressure (LP) cylinder rotor structure as a result, high
Back pressure heat supply is transformed, and thus reduces improvement cost to greatest extent.
In this system, heat supply network return water enters the condenser 1 by the heat supply network return water to condenser inlet pipeline 3, carries
The back pressure of high steam turbine, after turbine discharge heats heat supply network return water, heat supply network return water enters the heat supply network return water main pipe 2,
It is sent to heat user by heat supply network water supply line.At heating initial stage, for supply water temperature at 80 DEG C, return water temperature is corresponding at 46 DEG C or so
The leaving water temperature of cool circulation water is at 68 DEG C or so between condenser 30KPa.This system can longtime running under back pressure 54KPa,
Under conditions of the municipal heating area of demonstration corresponds to heat supply network circulating water flow 10000T/H, condition of the unit electric load 60%
Under, recirculated water can reach 20 DEG C or so of Wen Sheng, be equivalent to and save heating steam extraction 330T/H or so.
Optionally, it is equipped with dirt separator 19 on first inlet pipeline 4 and second inlet pipeline 5.The decontamination
Device 19 be used to remove and filter pipeline in impurity and dirt, the water quality of heat supply network return water in the condenser 1 is flowed into guarantee,
Ensure system normal operation.
Optionally, the side entrances the condenser A 6 are connect with the sides condenser A first pipe 13, the sides the condenser A first
Pipeline 13 is connected to recirculated water return water main pipe；The condenser A side outlets 7 are connect with the sides condenser A second pipe 14, described solidifying
The sides vapour device A second pipe 14 is connected to recirculated water water main pipe.
Optionally, the side entrances the condenser B 9 are connect with the sides condenser B first pipe 15, the sides the condenser B first
Pipeline 15 is connected to recirculated water water main pipe；The condenser B side outlets 10 are connect with the sides condenser B second pipe 16, described
The sides condenser B second pipe 16 is connected to recirculated water return water main pipe.
Optionally, the sides condenser A first pipe 13 and the sides condenser A second pipe 14 are respectively connected to cycle puddle
Sump.
Optionally, the sides condenser B first pipe 15 and the sides condenser B second pipe 16 are respectively connected to cycle puddle
Sump.
Optionally, the heat supply network return water to condenser inlet pipeline 3 is equipped with water inlet total valve 17.The water inlet total valve
17 can be selected electronic dish valve, be the total doors of water inlet that the condenser 1 is flowed into for controlling heat supply network return water.
Optionally, the pipeline of 17 front end of the water inlet total valve is equipped with Draw off valve 18.The Draw off valve 18 is arranged
It is for controlling heat supply network return water always putting in front of the door before flowing into the water inlet total valve 17 in the front end of the water inlet total valve 17
Water valve.Optionally, the rear end of the water inlet total valve 17 is equipped with heat supply network return water to total exhaust valve 22 behind the door of condenser water inlet.Equally
Ground, the sides the condenser A are respectively equipped with the sides condenser A front water chamber wicket 23 and the sides condenser A front water chamber exhaust valve 24；It is described
The sides condenser B are respectively equipped with the sides condenser B front water chamber wicket 25 and the sides condenser B front water chamber exhaust valve 26.When 1 heat of condenser
After net return water intake gate is opened, the sides condenser A front water chamber exhaust valve 24 and the exhaust of the sides condenser B front water chamber are first opened
Door 26, the sides condenser A front water chamber exhaust valve 24 and the sides condenser B front water chamber exhaust valve are closed after seeing solid stream of water
26, it can be used for checking whether condenser 1 leaks, ensure system pressure balance, avoid the damage of equipment.
It is crack by parameters such as 12 monitoring system pressure of the on-Line Monitor Device, temperature, flows when this system is run
Heat supply network return water opens heat supply network return water to total exhaust valve 22 behind the door of condenser water inlet, sees continuous water to condenser water inlet total valve 17
Heat supply network return water is closed after stream to total exhaust valve 22 behind the door of condenser water inlet, after checking that system No leakage, valve throttle sound disappear
Slow standard-sized sheet heat supply network return water makes heat supply network return water enter the condenser 1 and carries out heat exchange, have to condenser water inlet total valve 17
The heat of effect recycling exhaust steam in steam turbine, reduces heat source loss.
Optionally, first inlet pipeline 4, the second inlet pipeline 5, the first outlet pipeline 8, on the second outlet pipeline 11
It is equipped with electrically operated valve.The heat supply network return water main pipe 2 is equipped with heat supply network return water strainer 20 and pumps for hot water supply net 21.The heat supply network returns
Water screen 20 is used to filter the water quality of the heat supply network return water, automatic to start rotary sieve motor when strainer differential pressure reaches setting value,
And sewage door is opened, carry out strainer flushing.
By above technical scheme, this application provides a kind of indirect air cooling steam turbine high back pressure heating systems, including condensing
Device, heat supply network return water main pipe and heat supply network return water to condenser inlet pipeline, heat supply network return water main pipe are intake with heat supply network return water to condenser
Piping connection, heat supply network return water to condenser inlet pipeline are divided into two tunnels, respectively the first inlet pipeline and the second inlet pipeline, the
One inlet pipeline is connected to by the side entrances condenser A with condenser, and is connected by condenser A side outlets and the first outlet pipeline
It connects；Second inlet pipeline is connected to by the side entrances condenser B with condenser, and passes through condenser B side outlets and the second outlet pipe
Road connects；First outlet pipeline is connect after merging with the second outlet pipeline with heat supply network return water main pipe, the first outlet pipeline and second
On-Line Monitor Device is equipped on outlet pipeline.Heat supply network return water is accessed condenser by this system, cold is followed to substitute original
Ring water, to absorb the heat of exhaust steam in steam turbine；By the control of steam turbine operation back pressure under higher back pressure, by heat supply network return water temperature
70 DEG C or so are heated to, to reduce cold source energy to greatest extent, the thermal efficiency of the indirect air cooling for thermo-power station is improved, to reach
To the purpose for increasing heat capacity, improving economy.
It should be noted that the relational terms of such as " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include but also include not having so that article or equipment including a series of elements include not only those elements
The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having
There is the element limited by sentence "including a ..." in the case of more limiting, it is not excluded that in the mistake for including the element
There is also other identical elements in journey, method, article or equipment.
The above is only the specific implementation mode of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or range.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
It should be understood that the application is not limited to the content for being described above and being shown in the accompanying drawings, and can
To carry out various modifications and change without departing from the scope.Scope of the present application is only limited by the accompanying claims.
Claims (9)
1. a kind of indirect air cooling steam turbine high back pressure heating system, which is characterized in that including：Condenser (1), heat supply network return water main pipe
(2) and heat supply network return water is to condenser inlet pipeline (3), wherein
The heat supply network return water main pipe (2) connect with the heat supply network return water to condenser inlet pipeline (3), and the heat supply network return water is to solidifying
Vapour device inlet pipeline (3) is divided into two tunnels, respectively the first inlet pipeline (4) and the second inlet pipeline (5), first water inlet pipe
Road (4) is connected to by the side entrances condenser A (6) with the condenser (1), and passes through condenser A side outlets (7) and the first water outlet
Pipeline (8) connects；Second inlet pipeline (5) is connected to by the side entrances condenser B (9) with the condenser (1), and is passed through
Condenser B side outlets (10) are connect with the second outlet pipeline (11)；First outlet pipeline (8) and second outlet pipeline
(11) it is connect with the heat supply network return water main pipe (2) after merging；
It is equipped with on-Line Monitor Device (12) on first outlet pipeline (8) and second outlet pipeline (11).
2. indirect air cooling steam turbine high back pressure heating system according to claim 1, which is characterized in that first water inlet
It is equipped with dirt separator (19) on pipeline (4) and second inlet pipeline (5).
3. indirect air cooling steam turbine high back pressure heating system according to claim 1, which is characterized in that the condenser A
Side entrance (6) is connect with the sides condenser A first pipe (13), and the sides condenser A first pipe (13) is connected to recirculated water and returns
Jellyfish pipe；The condenser A side outlets (7) connect with the sides condenser A second pipe (14), the sides condenser A second pipe
(14) it is connected to recirculated water water main pipe.
4. indirect air cooling steam turbine high back pressure heating system according to claim 1, which is characterized in that the condenser B
Side entrance (9) is connect with the sides condenser B first pipe (15), and the sides condenser B first pipe (15) is connected to recirculated water confession
Jellyfish pipe；The condenser B side outlets (10) connect with the sides condenser B second pipe (16), the sides condenser B second pipe
(16) it is connected to recirculated water return water main pipe.
5. indirect air cooling steam turbine high back pressure heating system according to claim 3, which is characterized in that the condenser A
Side first pipe (13) and the sides condenser A second pipe (14) are respectively connected to cycle puddle sump.
6. indirect air cooling steam turbine high back pressure heating system according to claim 4, which is characterized in that the condenser B
Side first pipe (15) and the sides condenser B second pipe (16) are respectively connected to cycle puddle sump.
7. indirect air cooling steam turbine high back pressure heating system according to claim 1, which is characterized in that the heat supply network return water
It is equipped with water inlet total valve (17) to condenser inlet pipeline (3).
8. indirect air cooling steam turbine high back pressure heating system according to claim 7, which is characterized in that the water inlet main valve
The pipeline of door (17) front end is equipped with Draw off valve (18).
9. indirect air cooling steam turbine high back pressure heating system according to claim 1, which is characterized in that first water inlet
Pipeline (4), the second inlet pipeline (5), the first outlet pipeline (8), the second outlet pipeline are equipped with electrically operated valve on (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289902.5U CN207962802U (en) | 2018-03-01 | 2018-03-01 | A kind of indirect air cooling steam turbine high back pressure heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820289902.5U CN207962802U (en) | 2018-03-01 | 2018-03-01 | A kind of indirect air cooling steam turbine high back pressure heating system |
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| Publication Number | Publication Date |
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| CN207962802U true CN207962802U (en) | 2018-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224534A (en) * | 2018-03-01 | 2018-06-29 | 申能吴忠热电有限责任公司 | A kind of indirect air cooling steam turbine high back pressure heating system |
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2018
- 2018-03-01 CN CN201820289902.5U patent/CN207962802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224534A (en) * | 2018-03-01 | 2018-06-29 | 申能吴忠热电有限责任公司 | A kind of indirect air cooling steam turbine high back pressure heating system |
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