CN107062351A - A kind of heat supply network progressive solution system and its adjusting method using small steam turbine - Google Patents
A kind of heat supply network progressive solution system and its adjusting method using small steam turbine Download PDFInfo
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- CN107062351A CN107062351A CN201710318641.5A CN201710318641A CN107062351A CN 107062351 A CN107062351 A CN 107062351A CN 201710318641 A CN201710318641 A CN 201710318641A CN 107062351 A CN107062351 A CN 107062351A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
- F24D2200/26—Internal combustion engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0271—Valves
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention provides a kind of heat supply network progressive solution system using small steam turbine and its adjusting method, its reasonable in design, dependable performance, be advantageously implemented thermal power plant unit can be with can recycle.Thermoelectricity machine set system includes taking out condensing turbine, main condenser, condensate pump, eight grades low plus heater, seven grades low plus heater, six grades low plus heater and Pyatyi is low plus heater；Heating system includes heat supply network return pipe, heat supply network feed pipe, circulation pump of heat-supply network, secondary condenser, hydrophobic heat exchangers for district heating, heat exchangers for district heating, house generator, the small steam turbine of pure condensate and vacuum extractor.At heating initial stage or latter stage, heat supply network backwater is delivered to time condenser through heat supply network return pipe and heated, and is then delivered to heat supply network feed pipe through No. two hot net water bypasses, and being delivered to user again by heat supply network feed pipe carries out heating；In the heating high and cold phase, heat supply network backwater is delivered to user and carries out heating through time condenser primary heating after then carrying out reheating through heat exchangers for district heating.
Description
Technical field
The present invention relates to a kind of heat supply network progressive solution system and its adjusting method using small steam turbine, belong to cogeneration of heat and power skill
Art field.
Background technology
Hair changes the energy [2016] 617 " on printing and distributing《Cogeneration of heat and power management method》Notice " require：Strive realizing north
The big-and-middle-sized above city cogeneration of heat and power central heating rate in side reaches that county town cogenerations of heat and power more than more than 60%, 200,000 populations is covered entirely
Lid.This indicates that the development of cogeneration of heat and power will enter a fast-developing period.And as China's policy is gradually paid attention to
The popularization of new energy, the ratio that fired power generating unit participates in peak regulation is gradually increasing so that unit is chronically at underrun.At present,
Traditional central heating mode is drawn gas for unit heating and heated in heat exchangers for district heating, user heating is then supplied, at this
Period has the very big available loss of energy.And " extraction and condensing unit installs the heating energy-saving dress of back pressure machine additional for current technology, such as patent
Put and its power-economizing method（The patent No. 201110433533.5）", although it is effectively utilized the available energy that heating is drawn gas, but its technology
0.8MPa heat supply retrofitted unit is reached primarily directed to extraction pressure, exhaust steam pressure is also in more than 0.1MPa.As patent is " a kind of high
The small steam turbine heating extraction for heat supply system of back pressure（The patent No. 201610425696.1）", it is also to be directed to after pure condensate unit heat supply transformation,
Pressure draws gas for more than 0.7MPa heating, is dropped to the design steam pressure 0.2-0.3MPa of hot net water heating.
For existing thermal power plant unit, design heating steam pressure is 0.2-0.5MPa, and in actual motion, is particularly existed
Heating first latter stage, temperature needed for hot net water typically only has 70-90 DEG C or so, now, is existed very between design heating steam
The big available loss of energy.Moreover, being reclaimed at present without effective measures.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and provide a kind of reasonable in design, performance
Reliably, heat supply network progressive solution system and its regulation side for the small steam turbine of utilization that can be recycled can be used by being advantageously implemented thermal power plant unit
Method.
The present invention the used technical scheme that solves the above problems is：A kind of heat supply network progressive solution system using small steam turbine
System, including thermoelectricity machine set system and heating system；Described thermoelectricity machine set system includes taking out condensing turbine, main condenser, condensation
Water pump, eight grades low plus heater, seven grades low plus heater, six grades low plus heater and Pyatyi is low plus heater；Take out condensing turbine,
Main condenser, condensate pump, eight grades low plus heater, seven grades low plus heater, six grades low plus heater, Pyatyi are low to add heater
It is sequentially connected；Take out condensing turbine and be provided with heating extraction steam pipe；Six grades low plus heater is connected with six grades of feed pipes；It is seven grades low to add
Hot device is connected with seven grades of feed pipes；Pyatyi is low plus heater is connected with Pyatyi feed pipe；Described heating system is sent out including station-service
Motor, the small steam turbine of pure condensate and vacuum extractor；House generator is connected with the small steam turbine of pure condensate；Vacuum extractor by pipeline with time
Condenser is connected, and controlling switch is provided with the pipeline；
It is characterized in that：Described heating system also includes heat supply network return pipe, heat supply network feed pipe, circulation pump of heat-supply network, secondary condensing
Device, hydrophobic heat exchangers for district heating and heat exchangers for district heating；Circulation pump of heat-supply network is arranged on heat supply network return pipe；Heat supply network return pipe passes through pipe
Road is connected with the low-temperature receiver import of secondary condenser and the low-temperature receiver import of hydrophobic heat exchangers for district heating respectively；In the low-temperature receiver import of secondary condenser
It is provided with ride on Bus No. 11 valve, low-temperature receiver outlet and ten No. two valves is installed, low-temperature receiver outlet and the heat exchangers for district heating of secondary condenser
Low-temperature receiver import is connected；The low-temperature receiver import of hydrophobic heat exchangers for district heating is provided with No. five valves, and low-temperature receiver outlet is provided with No. six valves, dredged
The low-temperature receiver outlet of water heat exchangers for district heating is connected with the low-temperature receiver import of heat exchangers for district heating；It is provided with the low-temperature receiver import of heat exchangers for district heating
Ten No. four valves are installed, the low-temperature receiver outlet of heat exchangers for district heating is connected with heat supply network feed pipe in ten No. three valves, low-temperature receiver outlet；Heat
Net heater is provided with hot net water bypass, and is provided with No. eight valves in hot net water bypass；Hot net water bypass respectively with heat supply network
The low-temperature receiver import of heater and low-temperature receiver outlet connection；Heating extraction steam pipe is entered by the steam of draw gas branch road and a heat exchangers for district heating
Mouth connection；Heating extraction steam pipe is also connected by No. two branch roads that draw gas with the steam inlet of the small steam turbine of pure condensate；In the branch road that draws gas
On a valve is installed, No. two valves are installed on No. two branch roads that draw gas；The small steam turbine of pure condensate passes through steam turbine exhaust steam Guan Yuci
The steam inlet connection of condenser, and No. three valves are installed on steam turbine exhaust steam pipe；The hydrophobic outlet of secondary condenser passes through solidifying
Bear water pipe to be connected with seven grades of feed pipes, and No. four valves are installed on condensate pipe；Hydrophobic heat exchangers for district heating is added by hydrophobic
Hot device outlet pipe is connected with six grades of feed pipes, and is provided with hydrophobic heater outlet pipe No. seven valves；Heat exchangers for district heating
Hydrophobic outlet is connected by drain pipe with hydrophobic heat exchangers for district heating, and is provided with drain pipe No. nine valves；Drain pipe passes through
Hydrophobic branch pipe is connected with Pyatyi feed pipe, and No. ten valves are provided with hydrophobic branch pipe.
Of the present invention condenser is also connected by vacuum-pumping tube with main condenser, and on vacuum-pumping tube be equipped with every
Disconnected valve and throttling arrangement.
Connected after of the present invention condenser is in parallel with hydrophobic heat exchangers for district heating with heat exchangers for district heating.
A kind of adjusting method of heat supply network progressive solution system using small steam turbine, it is characterised in that：Comprise the following steps：
First, at heating initial stage or latter stage, Heating Load demand is smaller, now：
Valve, No. ten valves, No. nine valves, ten No. three valves, ten No. four valves are closed, heat exchangers for district heating is out of service；
No. five valves, No. six valves, No. seven valves are closed, hydrophobic heat exchangers for district heating is out of service；
Open No. two valves, No. three valves, No. four valves, ride on Bus No. 11 valve, ten No. two valves, No. eight valves, heating extraction steam pipe
Draw gas and be introduced into the acting of pure condensate small steam turbine, driving house generator generates electricity, driven by power circulation pump of heat-supply network, condensate pump；
Heat supply network backwater is delivered to time condenser through heat supply network return pipe and heated, and then heat supply network feed pipe is delivered to through hot net water bypass, by heat
Net feed pipe is delivered to user and carries out heating again；
The hydrophobic process condensate pipe of secondary condenser is delivered to seven grades of feed pipes on front side of seven grades low plus heater；
The back pressure of the exhaust pressure of the small steam turbine of pure condensate and time condenser temperature according to needed for supplying water heat supply network, 40kPa~70kPa it
Between select；
2nd, in the heating high and cold phase, Heating Load demand is larger, now：
Valve, ten No. three valves, ten No. four valves are opened, No. eight valves are closed, heat exchangers for district heating puts into operation；
No. two valves, No. three valves, No. four valves, ride on Bus No. 11 valve, ten No. two valves are opened, No. eight valves are closed, heating is taken out
Drawing gas for steam pipe is introduced into the small steam turbine acting of pure condensate, and driving house generator generates electricity, driven by power circulation pump of heat-supply network and condensation
Water pump, heat supply network backwater is delivered to time condenser primary through heat supply network return pipe and heated, and heat exchangers for district heating is then delivered to again and carries out two
Secondary heating, is delivered to user through heat supply network feed pipe by the hot net water of reheating and carries out heating；
No. ten valves are closed, No. nine valves, No. five valves, No. six valves, No. seven valves, hydrophobic heat exchangers for district heating input fortune are opened
OK, now the hydrophobic process drain pipe of heat exchangers for district heating is delivered to hydrophobic heat exchangers for district heating, is dredged while part heat supply network backwater enters
Water heat exchangers for district heating carries out primary heating, and heat exchangers for district heating is entered after then being mixed with the hot net water from secondary condenser and carries out two
Secondary heating, hydrophobic six grades be delivered to by hydrophobic heater outlet pipe on front side of six grades low plus heater of hydrophobic heat exchangers for district heating
Feed pipe；
When hydrophobic heat exchangers for district heating is not put into, then No. ten valves are opened, close No. nine valves, No. five valves, No. six valves, seven
Number valve, hydrophobic heat exchangers for district heating is out of service, now heat exchangers for district heating it is hydrophobic by hydrophobic branch pipe be delivered to Pyatyi it is low plus
Pyatyi feed pipe on front side of heater；
The back pressure of the exhaust pressure of the small steam turbine of pure condensate and time condenser temperature according to needed for the water inlet of the heat supply network of heat exchangers for district heating,
Selected between 40kPa~70kPa.
It is of the invention preferential using time condenser heating hot net water, hot net water secondly is heated using hydrophobic heat exchangers for district heating, most
Afterwards hot net water is heated using heat exchangers for district heating.
The small steam turbine initial steam pressure of pure condensate of the present invention be 0.2MPa~0.5MPa, exhaust steam pressure be 40kPa~
70kPa。
Of the present invention back pressure of condenser is 40kPa~70kPa.
Of the present invention condenser is also connected by vacuum-pumping tube with main condenser, and on vacuum-pumping tube be equipped with every
Disconnected valve and throttling arrangement；Vacuum required for secondary condenser is kept by following two modes：（1）, by opening control
Switch, the vacuum required for time condenser is kept using vacuum extractor；（2）, open isolating valve, pass through throttling arrangement section
After stream, time condenser is kept to reach required vacuum using main condenser.
Invention compared with prior art, with advantages below and effect：It is reasonable in design, simple in construction, performance
Reliably, the available energy effective recycling that thermal power plant unit heating is drawn gas can be realized, existing unit design pressure is especially can be achieved on
The effective recycling for the available energy that power is drawn gas for 0.2-0.5MPa heating, substantially reduces irreversible loss.The present invention is solved
Existing thermal power plant unit design heating is drawn gas into heat supply the problem of cause the available loss of energy, meanwhile, also heating is drawn gas hydrophobic
Efficient heat also recycled, realize to greatest extent recycle heating draw gas it is available can, with good
Energy-saving benefit and promotional value.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of thermoelectricity machine set system of the embodiment of the present invention.
Fig. 3 is the structural representation of heating system of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment, following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Referring to Fig. 1~Fig. 3, the present embodiment includes thermoelectricity machine set system and confession using the heat supply network progressive solution system of small steam turbine
Hot systems.
Thermoelectricity machine set system include taking out condensing turbine 11, main condenser 12, condensate pump 13, eight grades low plus heater 14,
Seven grades low plus heater 15, six grades low plus heater 16, Pyatyi are low to add heater 17, takes out condensing turbine 11, main condenser 12, coagulates
Bear water that pump 13, eight grades low plus heater 14, seven grades low plus heater 15, six grades low plus heater 16, Pyatyi be low plus heater 17
It is sequentially connected.
Take out condensing turbine 11 and be provided with heating extraction steam pipe 401.
The six grades low plus front side of heater 16 is connected with six grades of feed pipes 161.
The seven grades low plus front side of heater 15 is connected with seven grades of feed pipes 151.
Pyatyi is low plus the front side of heater 17 is connected with Pyatyi feed pipe 171.
Thermoelectricity machine set system is prior art, is not repeated.
Heating system include heat supply network return pipe 301, heat supply network feed pipe 302, circulation pump of heat-supply network 21, secondary condenser 22, dredge
Water heat exchangers for district heating 23, heat exchangers for district heating 24, house generator 25, the small steam turbine 26 of pure condensate and vacuum extractor 27.
The generating of house generator 25 is as station service, to drive circulation pump of heat-supply network 21, condensate pump 13 and other factories
Interior current consuming apparatus.House generator 25 is connected with the small steam turbine of pure condensate 26.
The small steam turbine 26 of pure condensate be pure condensate unit, initial steam pressure be 0.2MPa~0.5MPa, exhaust steam pressure be 40kPa~
70kPa.The steam discharge of the small steam turbine 26 of pure condensate is used to heat hot net water.
Heat supply network return pipe 301 is cold with the low-temperature receiver import of secondary condenser 22 and hydrophobic heat exchangers for district heating 23 respectively by pipeline
Source import connection.
Ride on Bus No. 11 valve 223 is installed, low-temperature receiver is provided with ten No. two valves in outlet in the low-temperature receiver import of secondary condenser 22
224.The low-temperature receiver outlet of secondary condenser 22 is connected by pipeline with the low-temperature receiver import of heat exchangers for district heating 24.
Secondary condenser 22 has certain vacuum degree, and back pressure is 40kPa ~ 70kPa；Can be by opening controlling switch 271, profit
The vacuum required for it is kept with vacuum extractor 27；Isolating valve, 502 can also be opened, is throttled by throttling arrangement 503
Afterwards, time condenser 22 is kept to reach required vacuum using main condenser 12.
The low-temperature receiver import of hydrophobic heat exchangers for district heating 23 is provided with No. five valves 232, and low-temperature receiver outlet is provided with No. six valves
233.The low-temperature receiver outlet of hydrophobic heat exchangers for district heating 23 is connected by pipeline with the low-temperature receiver import of heat exchangers for district heating 24.
Secondary condenser 22 after the hydrophobic parallel connection of heat exchangers for district heating 23 with heat exchangers for district heating 24 with connecting.
The heating extraction steam pipe 401 for taking out condensing turbine 11 is entered by the steam of draw gas a branch road 402 and heat exchangers for district heating 24
Mouth connection.Heating extraction steam pipe 401 is also connected by No. two branch roads 405 that draw gas with the steam inlet of the small steam turbine of pure condensate 26.At No. one
Draw gas and a valve 403 is installed on branch road 402, No. two valves 404 are installed on No. two branch roads 405 that draw gas.
The small steam turbine 26 of pure condensate is connected by steam turbine exhaust steam pipe 261 with the steam inlet of time condenser 22, and in steam turbine exhaust steam
No. three valves 262 are installed on pipe 261.
The hydrophobic outlet of secondary condenser 22 passes through the low seven grades of feed pipes added on front side of heater 15 of condensate pipe 221 and seven grades
151 connections, and No. four valves 222 are installed on condensate pipe 221.
Vacuum extractor 27 is connected by pipeline with time condenser 22, and controlling switch 271 is provided with the pipeline.
Secondary condenser 22 is connected by vacuum-pumping tube 501 with main condenser 12, and equipped with isolating valve, on vacuum-pumping tube 501
502 and throttling arrangement 503.
Hydrophobic heat exchangers for district heating 23 is given by hydrophobic heater outlet pipe 235 with six grades on front side of six grades low plus heater 16
Water pipe 161 is connected, and is provided with hydrophobic heater outlet pipe 235 No. seven valves 234.
Ten No. three valves 245 are installed, low-temperature receiver is provided with ten No. four valves in outlet in the low-temperature receiver import of heat exchangers for district heating 24
Door 246, the low-temperature receiver outlet of heat exchangers for district heating 24 is connected with heat supply network feed pipe 302.
Heat exchangers for district heating 24 is provided with hot net water bypass 247, and is provided with No. eight valves 248 in hot net water bypass 247.
Low-temperature receiver import and the low-temperature receiver outlet of hot net water bypass 247 respectively with heat exchangers for district heating 24 are connected.
The hydrophobic outlet of heat exchangers for district heating 24 is connected by drain pipe 243 with hydrophobic heat exchangers for district heating 23, and in drain pipe
No. nine valves 244 are installed on 243.
Drain pipe 243 is connected by the low Pyatyi feed pipe 171 for adding the front side of heater 17 of hydrophobic branch pipe 242 and Pyatyi, and
No. ten valves 241 are installed on hydrophobic branch pipe 242.
Circulation pump of heat-supply network 21 is arranged on heat supply network return pipe 301.
A kind of adjusting method of heat supply network progressive solution system using small steam turbine, comprises the following steps：
First, at heating initial stage or latter stage, Heating Load demand is smaller, now：
Close valve 403, No. ten valves 241, No. nine valves 244, ten No. three valves 245, ten No. four valves 246, heat supply network
Heater 24 is out of service；
No. five valves 232, No. six valves 233, No. seven valves 234 are closed, hydrophobic heat exchangers for district heating 23 is out of service；
Open No. two valves 404, No. three valves 262, No. four valves 222, ride on Bus No. 11 valve 223, ten No. two valves 224, No. eight
Valve 248, the drawing gas of heating extraction steam pipe 401 is introduced into the small steam turbine 26 of pure condensate and done work, and driving house generator 25 generates electricity, and electric power drives
Current consuming apparatus in dynamic circulation pump of heat-supply network 21, condensate pump 13 and other factories；Heat supply network backwater is delivered to secondary through heat supply network return pipe 301
Condenser 22 is heated, and is then delivered to heat supply network feed pipe 302 through hot net water bypass 247, use is delivered to again by heat supply network feed pipe 302
Family carries out heating；
The hydrophobic process condensate pipe 221 of secondary condenser 22 is delivered to seven grades low plus the front side of heater 15 seven grades of feed pipes 151；
The back pressure of the exhaust pressure of the small steam turbine 26 of pure condensate and time condenser 22 temperature according to needed for supplying water heat supply network, 40kPa~
Selected between 70kPa.
2nd, in the heating high and cold phase, Heating Load demand is larger, draws gas reheating hot net water to meet using heating
Demand, at the same using heating draw gas it is hydrophobic for the first time heat hot net water, now：
Valve 403, ten No. three valves 245, ten No. four valves 246 are opened, No. eight valves 248, heat exchangers for district heating 24 are closed
Put into operation；
No. two valves 404, No. three valves 262, No. four valves 222, ride on Bus No. 11 valve 223, ten No. two valves 224 are opened, are closed
No. eight valves 248, the part of heating extraction steam pipe 401, which is drawn gas, to be introduced into the small steam turbine 26 of pure condensate and does work, and driving house generator 25 is sent out
Current consuming apparatus in electricity, driven by power circulation pump of heat-supply network 21, condensate pump 13 and other factories, heat supply network backwater is through heat supply network return pipe
301 are delivered to the primary heating of time condenser 22, and heat exchangers for district heating 24 is then delivered to again and carries out reheating, by reheating
Hot net water is delivered to user through heat supply network feed pipe 302 and carries out heating；
No. ten valves 241 are closed, No. nine valves 244, No. five valves 232, No. six valves 233, No. seven valves 234 are opened, it is hydrophobic
Heat exchangers for district heating 23 puts into operation, and now the hydrophobic process drain pipe 243 of heat exchangers for district heating 24 is delivered to hydrophobic heat exchangers for district heating
23, while part heat supply network backwater carries out primary heating into hydrophobic heat exchangers for district heating 23, then with the heat from secondary condenser 22
Heat exchangers for district heating 24 is entered back into after the mixing of net water and carries out reheating, the hydrophobic of hydrophobic heat exchangers for district heating 23 passes through hydrophobic heater
Outlet pipe 235 is delivered to six grades low plus the front side of heater 16 six grades of feed pipes 161；
When hydrophobic heat exchangers for district heating 23 is not put into, then open No. ten valves 241, close No. nine valves 244, No. five valves 232,
No. six valves 233, No. seven valves 234, hydrophobic heat exchangers for district heating 23 are out of service, and the hydrophobic of heat exchangers for district heating 24 passes through hydrophobic branch
Pipe 242 is delivered to the low Pyatyi feed pipe 171 added on front side of heater 17 of Pyatyi；
Now, the back pressure of the exhaust pressure of the small steam turbine 26 of pure condensate and time condenser 22 is according to the heat supply network of heat exchangers for district heating 24 water inlet institute
Temperature is needed, is selected between 40kPa~70kPa.
During regulation, the back pressure of secondary condenser 22 can be ensured by two methods：1. controlling switch 271 is opened,
Vacuumized using 27 pairs condensers 22 of vacuum extractor；2. isolating valve, 502 is opened, after being throttled by throttling arrangement 503,
Time condenser 22 is kept to reach required vacuum using main condenser 12.
In the present embodiment, adjusting method is in concrete operations, it then follows：It is preferential to heat hot net water using time condenser 22,
Secondly hot net water is heated using hydrophobic heat exchangers for district heating 23, finally heats hot net water using heat exchangers for district heating 24.
In the accompanying drawing of the present invention, A, B, C are represented, the pipeline shown in two identical English alphabets is connected.
Above content described in this specification is only to structure example explanation of the present invention；Moreover, this hair
The title that bright each several part is taken can also be different, what all construction, feature and principles according to described in inventional idea of the present invention were done etc.
In effect or simple change, the protection domain for being included in patent of the present invention.
Claims (8)
1. a kind of heat supply network progressive solution system using small steam turbine, including thermoelectricity machine set system and heating system；Described thermoelectricity
Machine set system includes taking out condensing turbine, main condenser, condensate pump, eight grades low plus heater, seven grades low plus heater, six grades low
Plus heater and Pyatyi is low plus heater；Take out condensing turbine, main condenser, condensate pump, eight grades low plus heater, it is seven grades low plus
Heater, six grades low plus heater, Pyatyi are low plus heater is sequentially connected；Take out condensing turbine and be provided with heating extraction steam pipe；Six grades
Low plus heater is connected with six grades of feed pipes；Seven grades low plus heater is connected with seven grades of feed pipes；Pyatyi is low plus heater is connected
There is Pyatyi feed pipe；Described heating system includes house generator, the small steam turbine of pure condensate and vacuum extractor；House generator with
The small steam turbine connection of pure condensate；Vacuum extractor is connected by pipeline with time condenser, and controlling switch is provided with the pipeline；It is special
Levy and be：Described heating system also includes heat supply network return pipe, heat supply network feed pipe, circulation pump of heat-supply network, secondary condenser, hydrophobic heat
Net heater and heat exchangers for district heating；Circulation pump of heat-supply network is arranged on heat supply network return pipe；Heat supply network return pipe by pipeline respectively with
The low-temperature receiver import of secondary condenser and the low-temperature receiver import connection of hydrophobic heat exchangers for district heating；Ten are provided with the low-temperature receiver import of secondary condenser
Ten No. two valves, the low-temperature receiver outlet and the low-temperature receiver import of heat exchangers for district heating of secondary condenser are installed in a number valve, low-temperature receiver outlet
Connection；The low-temperature receiver import of hydrophobic heat exchangers for district heating is provided with No. five valves, and low-temperature receiver outlet is provided with No. six valves, and hydrophobic heat supply network adds
The low-temperature receiver outlet of hot device is connected with the low-temperature receiver import of heat exchangers for district heating；Ten No. three valves are installed in the low-temperature receiver import of heat exchangers for district heating
Ten No. four valves are installed, the low-temperature receiver outlet of heat exchangers for district heating is connected with heat supply network feed pipe in door, low-temperature receiver outlet；Heat exchangers for district heating
Hot net water bypass is provided with, and No. eight valves are installed in hot net water bypass；Hot net water bypass respectively with heat exchangers for district heating
Low-temperature receiver import and low-temperature receiver outlet connection；The steam inlet connection that heating extraction steam pipe passes through draw gas branch road and a heat exchangers for district heating；
Heating extraction steam pipe is also connected by No. two branch roads that draw gas with the steam inlet of the small steam turbine of pure condensate；It is provided with the branch road that draws gas
A number valve, is provided with No. two valves on No. two branch roads that draw gas；The small steam turbine of pure condensate passes through steam turbine exhaust steam Guan Yuci condensers
Steam inlet is connected, and is provided with steam turbine exhaust steam pipe No. three valves；The hydrophobic outlet of secondary condenser by condensate pipe with
The connection of seven grades of feed pipes, and No. four valves are installed on condensate pipe；Hydrophobic heat exchangers for district heating passes through hydrophobic heater water outlet
The connection of Guan Yuliu grades of feed pipes, and No. seven valves are installed on hydrophobic heater outlet pipe；The hydrophobic outlet of heat exchangers for district heating
It is connected by drain pipe with hydrophobic heat exchangers for district heating, and No. nine valves is installed on drain pipe；Drain pipe passes through hydrophobic branch pipe
It is connected with Pyatyi feed pipe, and No. ten valves is installed on hydrophobic branch pipe.
2. the heat supply network progressive solution system according to claim 1 using small steam turbine, it is characterised in that：Described secondary condensing
Device is also connected by vacuum-pumping tube with main condenser, and equipped with isolating valve, and throttling arrangement on vacuum-pumping tube.
3. the heat supply network progressive solution system according to claim 1 using small steam turbine, it is characterised in that：Described secondary condensing
Connected after device is in parallel with hydrophobic heat exchangers for district heating with heat exchangers for district heating.
4. a kind of adjusting method of the heat supply network progressive solution system of small steam turbine of utilization as described in claim 1 or 2 or 3, it is special
Levy and be：Comprise the following steps：
First, at heating initial stage or latter stage, Heating Load demand is smaller, now：
Valve, No. ten valves, No. nine valves, ten No. three valves, ten No. four valves are closed, heat exchangers for district heating is out of service；
No. five valves, No. six valves, No. seven valves are closed, hydrophobic heat exchangers for district heating is out of service；
Open No. two valves, No. three valves, No. four valves, ride on Bus No. 11 valve, ten No. two valves, No. eight valves, heating extraction steam pipe
Draw gas and be introduced into the acting of pure condensate small steam turbine, driving house generator generates electricity, driven by power circulation pump of heat-supply network, condensate pump；
Heat supply network backwater is delivered to time condenser through heat supply network return pipe and heated, and then heat supply network feed pipe is delivered to through hot net water bypass, by heat
Net feed pipe is delivered to user and carries out heating again；
The hydrophobic process condensate pipe of secondary condenser is delivered to seven grades of feed pipes on front side of seven grades low plus heater；
The back pressure of the exhaust pressure of the small steam turbine of pure condensate and time condenser temperature according to needed for supplying water heat supply network, 40kPa~70kPa it
Between select；
2nd, in the heating high and cold phase, Heating Load demand is larger, now：
Valve, ten No. three valves, ten No. four valves are opened, No. eight valves are closed, heat exchangers for district heating puts into operation；
No. two valves, No. three valves, No. four valves, ride on Bus No. 11 valve, ten No. two valves are opened, No. eight valves are closed, heating is taken out
Drawing gas for steam pipe is introduced into the small steam turbine acting of pure condensate, and driving house generator generates electricity, driven by power circulation pump of heat-supply network and condensation
Water pump, heat supply network backwater is delivered to time condenser primary through heat supply network return pipe and heated, and heat exchangers for district heating is then delivered to again and carries out two
Secondary heating, is delivered to user through heat supply network feed pipe by the hot net water of reheating and carries out heating；
No. ten valves are closed, No. nine valves, No. five valves, No. six valves, No. seven valves, hydrophobic heat exchangers for district heating input fortune are opened
OK, now the hydrophobic process drain pipe of heat exchangers for district heating is delivered to hydrophobic heat exchangers for district heating, is dredged while part heat supply network backwater enters
Water heat exchangers for district heating carries out primary heating, and heat exchangers for district heating is entered after then being mixed with the hot net water from secondary condenser and carries out two
Secondary heating, hydrophobic six grades be delivered to by hydrophobic heater outlet pipe on front side of six grades low plus heater of hydrophobic heat exchangers for district heating
Feed pipe；
When hydrophobic heat exchangers for district heating is not put into, then No. ten valves are opened, close No. nine valves, No. five valves, No. six valves, seven
Number valve, hydrophobic heat exchangers for district heating is out of service, now heat exchangers for district heating it is hydrophobic by hydrophobic branch pipe be delivered to Pyatyi it is low plus
Pyatyi feed pipe on front side of heater；
The back pressure of the exhaust pressure of the small steam turbine of pure condensate and time condenser temperature according to needed for the water inlet of the heat supply network of heat exchangers for district heating,
Selected between 40kPa~70kPa.
5. adjusting method according to claim 3, it is characterised in that：It is preferential to heat hot net water using time condenser, secondly
Hot net water is heated using hydrophobic heat exchangers for district heating, finally hot net water is heated using heat exchangers for district heating.
6. adjusting method according to claim 3, it is characterised in that：The small steam turbine initial steam pressure of described pure condensate is 0.2MPa
~0.5MPa, exhaust steam pressure is 40kPa~70kPa.
7. adjusting method according to claim 3, it is characterised in that：Described secondary back pressure of condenser be 40kPa~
70kPa。
8. adjusting method according to claim 3, it is characterised in that：Described secondary condenser also passes through vacuum-pumping tube and master
Condenser is connected, and equipped with isolating valve, and throttling arrangement on vacuum-pumping tube；Vacuum required for secondary condenser passes through following
Two ways is kept：（1）, by opening controlling switch, the vacuum required for time condenser is kept using vacuum extractor
Degree；（2）, open isolating valve, after being throttled by throttling arrangement, kept using main condenser time condenser reach required for it is true
Reciprocal of duty cycle.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542506A (en) * | 2017-08-23 | 2018-01-05 | 华电电力科学研究院 | Steam turbine extraction condensing back pressure gradient utilization system and its application |
| CN108506057A (en) * | 2018-03-01 | 2018-09-07 | 华电电力科学研究院有限公司 | A kind of co-generation unit and adjusting method for cutting off low pressure (LP) cylinder into vapour |
| CN109854316A (en) * | 2019-02-02 | 2019-06-07 | 华电电力科学研究院有限公司 | A kind of combined cycle heat supply based on energy cascade utilization and power peak regulation coupled system and its operation method |
| CN111765507A (en) * | 2020-05-18 | 2020-10-13 | 华电电力科学研究院有限公司 | Improved heat supply initial station system and working method thereof |
| CN114963286A (en) * | 2022-06-21 | 2022-08-30 | 中冶焦耐(大连)工程技术有限公司 | Process for supplying heating water by dry quenching waste heat power generation |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH094415A (en) * | 1995-06-19 | 1997-01-07 | Mitsubishi Heavy Ind Ltd | Steam turbine condensation system |
| DE19630058A1 (en) * | 1996-07-25 | 1998-01-29 | Ormat Ind Ltd | Seasonally configured combined cycle thermal power station for remote heat supply system |
| WO2002004795A1 (en) * | 2000-07-07 | 2002-01-17 | Christian Meyer | Method and device for simultaneously producing heat and hot gas by cogeneration of power and heat |
| KR100849578B1 (en) * | 2007-11-20 | 2008-07-31 | 두산건설 주식회사 | High efficient energy saving type heating system using integrated assistant heat source means |
| CN203454250U (en) * | 2013-09-16 | 2014-02-26 | 北京国电德安电力工程有限公司 | Combined heat supply unit system |
| CN103836608A (en) * | 2014-03-10 | 2014-06-04 | 中国电力工程顾问集团华东电力设计院 | Regenerative system of low-pressure drain water cooler |
| CN104100313A (en) * | 2014-07-02 | 2014-10-15 | 西安交通大学 | Thermal power plant heat supply extraction steam residual pressure utilization system adopting back pressure extraction turbine |
| CN204691834U (en) * | 2015-05-19 | 2015-10-07 | 西安西热锅炉环保工程有限公司 | A kind of energy-saving and emission-reduction system utilizing low-grade extraction for heat supply |
| CN207035275U (en) * | 2017-05-08 | 2018-02-23 | 华电电力科学研究院 | Utilize the heat supply network progressive solution system of small steam turbine |
-
2017
- 2017-05-08 CN CN201710318641.5A patent/CN107062351B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH094415A (en) * | 1995-06-19 | 1997-01-07 | Mitsubishi Heavy Ind Ltd | Steam turbine condensation system |
| DE19630058A1 (en) * | 1996-07-25 | 1998-01-29 | Ormat Ind Ltd | Seasonally configured combined cycle thermal power station for remote heat supply system |
| WO2002004795A1 (en) * | 2000-07-07 | 2002-01-17 | Christian Meyer | Method and device for simultaneously producing heat and hot gas by cogeneration of power and heat |
| KR100849578B1 (en) * | 2007-11-20 | 2008-07-31 | 두산건설 주식회사 | High efficient energy saving type heating system using integrated assistant heat source means |
| CN203454250U (en) * | 2013-09-16 | 2014-02-26 | 北京国电德安电力工程有限公司 | Combined heat supply unit system |
| CN103836608A (en) * | 2014-03-10 | 2014-06-04 | 中国电力工程顾问集团华东电力设计院 | Regenerative system of low-pressure drain water cooler |
| CN104100313A (en) * | 2014-07-02 | 2014-10-15 | 西安交通大学 | Thermal power plant heat supply extraction steam residual pressure utilization system adopting back pressure extraction turbine |
| CN204691834U (en) * | 2015-05-19 | 2015-10-07 | 西安西热锅炉环保工程有限公司 | A kind of energy-saving and emission-reduction system utilizing low-grade extraction for heat supply |
| CN207035275U (en) * | 2017-05-08 | 2018-02-23 | 华电电力科学研究院 | Utilize the heat supply network progressive solution system of small steam turbine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542506A (en) * | 2017-08-23 | 2018-01-05 | 华电电力科学研究院 | Steam turbine extraction condensing back pressure gradient utilization system and its application |
| CN107542506B (en) * | 2017-08-23 | 2024-04-09 | 华电电力科学研究院有限公司 | Cascade utilization system for extraction condensing back of steam turbine and application thereof |
| CN108506057A (en) * | 2018-03-01 | 2018-09-07 | 华电电力科学研究院有限公司 | A kind of co-generation unit and adjusting method for cutting off low pressure (LP) cylinder into vapour |
| CN108506057B (en) * | 2018-03-01 | 2023-07-14 | 华电电力科学研究院有限公司 | Cogeneration system for cutting off steam inlet of low-pressure cylinder and adjusting method |
| CN109854316A (en) * | 2019-02-02 | 2019-06-07 | 华电电力科学研究院有限公司 | A kind of combined cycle heat supply based on energy cascade utilization and power peak regulation coupled system and its operation method |
| CN109854316B (en) * | 2019-02-02 | 2023-09-08 | 华电电力科学研究院有限公司 | Combined cycle heat supply and power peak regulation coupling system based on energy cascade utilization and operation method thereof |
| CN111765507A (en) * | 2020-05-18 | 2020-10-13 | 华电电力科学研究院有限公司 | Improved heat supply initial station system and working method thereof |
| CN114963286A (en) * | 2022-06-21 | 2022-08-30 | 中冶焦耐(大连)工程技术有限公司 | Process for supplying heating water by dry quenching waste heat power generation |
| CN114963286B (en) * | 2022-06-21 | 2024-03-19 | 中冶焦耐(大连)工程技术有限公司 | Process for supplying heating water by using dry quenching waste heat power generation |
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