CN104763484B - Air cooling turbine high back pressure heat supply power generating simultaneously method - Google Patents
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Abstract
The invention discloses air cooling turbine high back pressure heat supply power generating simultaneously method, belong to a kind of cogeneration method, for thermoelectricity plant newly-built, enlarging, transformation, the steam turbine comprise condensate polishing system, being connected with boiler and generator, described steam turbine set comprises the air cooling turbine of at least one back pressure ranges at 6 ~ 60kpa, being 36 ~ 50kPa in the back pressure ranges for warm season air cooling turbine, is 6 ~ 10kPa in the non-back pressure ranges for warm season air cooling turbine; The low pressure (LP) cylinder of air cooling turbine is connected with vapour condenser, and vapour condenser is also connected with municipal heating systems, precision processing device of condensation water respectively.The present invention can increase substantially generated energy and area of heat-supply service, and cold end loss is zero, reduces gross coal consumption rate, efficient energy-saving, economic and practical.
Description
Technical field
The present invention relates to a kind of cogeneration method, for thermoelectricity plant newly-built, enlarging, transformation.
Background technique
Cogeneration of heat and power refers to that power station both produced electric energy, again to the mode of production of user's heat supply, namely produces the manufacturing process of electricity, heat energy simultaneously, than the mode fuel saving of producing electricity, heat energy respectively.In cogeneration of heat and power engineering, steam turbine utilizes Boiler Steam to do work, thus drives electrical power generators; Draw gas from the cylinder of steam turbine, by heat supply network circulating water after heat exchangers for district heating heating, supply is to municipal heating systems simultaneously.Conventional steam turbine divides according to thermal performance types such as mainly containing condensed steam type, heat-supply type, back pressure type, steam-extracting type and saturated steam turbine.The steam that condensing steam turbine is discharged flows into vapour condenser, and exhaust steam pressure, lower than atmospheric pressure, therefore has good thermal performance, is a kind of steam turbine commonly used the most; Cogeneration turbine both provided motivational drive generator or other machinery, provided again production or life heat, had higher heat utilization rate; The exhaust steam pressure of back pressure turbine is greater than the steam turbine of atmospheric pressure; Extraction turbine is the steam turbine extracting steam heating from intergrade out.Turbine discharge enters vapour condenser, is recycled water cooling and is condensed into water, extracted out by condensate pump, after condensate polishing system process, adds to boiler feed water.Condensate polishing system generally comprises precision processing device of condensation water, heat exchanger, low-pressure heater, oxygen-eliminating device, boiler replenishing water pump group, high-pressure heater etc.
Existing cogeneration of heat and power engineering in general employing is taken out solidifying unit and is carried out city heat supply and generating, and take out solidifying unit and mainly comprise condensing steam turbine, condensing equipment forms primarily of vapour condenser, circulating water pump, condensate pump and air ejector.At non-heating season joint, steam turbine generator pure condensate generator operation; In heating season, part extraction for heat supply, some vapor condense after doing work in steam turbine in vapour condenser, and heat is released in exhaust steam, is taken away by circulation.Adopt the technique of taking out solidifying unit to have the following disadvantages: the first, the steam quality taken away from intermediate pressure cylinder is higher, still has acting ability, but for extraction for heat supply, capacity usage ratio is lower, unit generation output drop, and 350MW unit only can generate electricity when heat supply 266MW; The second, due to the requirement of the minimum through-current capacity of turbine low pressure cylinder, the exhaust steam of 148t/h must be had to condense in vapour condenser, the heat of these exhaust steam scatters and disappears from cooling tower, causes cold end loss, quite decreases about 25% area of heat-supply service.
The steam discharge of air cooling turbine is directly or indirectly cooled by air; Air cooling turbine has more wide in range economy scope.Back pressure turbine is the steam turbine that exhaust steam pressure is greater than atmospheric pressure.The electric power that back pressure turbine generator set sends is determined by heat load, thus can not meet the needs of optimized distributionl simultaneously.
Vapour condenser is a kind of heat exchanger turbine discharge being condensed into water, also known as steam condenser.Vapour condenser is mainly used in steam turbine power plant, is divided into water-cooled condenser and air cooling condenser two kinds.Vapour condenser, except the steam discharge of steam turbine being condensed into water boiler of feeding and reusing, can also be set up vacuum and maintain vacuum at turbine discharge place.
Condenser hotwell, is commonly called as " hot well ".Be arranged on the upright cylinder-like part of one bottom steam turbine surface condenser.In order to collect the main condensate generated by the continuous condensation of a large amount of exhaust steam.Because of outer likeness in form well, therefore named hot well.
The formation of exhaust steam: the superheated vapor with calorific potential energy is introduced after steam turbine through pipeline, just calorific potential can be transformed into kinetic energy, swiftly flowing Steam Actuation turbine rotor rotates, form mechanical energy, the steam of calorific potential energy is discharged through a series of acting, discharge from the relief opening of steam turbine bottom, the gas of discharge is called " exhaust steam ".
Back pressure, is generally used for fluid that descriptive system the discharges pressure at the pressure (being greater than local barometric pressure) of outlet port or second side.The back pressure relevant to steam turbine, be often referred to steam turbine outlet exhaust steam pressure, everybody is commonly called as back pressure.Two back pressure turbine refers to the steam turbine of two different exhaust steam pressures.
The hydrophobic water of condensation being steam and producing because pressure, temperature decline in pipeline.Hydrophobicly should to discharge in time, otherwise not only steam heat in absorption tube, affect vapor flow, serious will produce water hammer, causes serious consequence.Drain recovery can continue to use through process, and higher hydrophobic of parameter first can reclaim heat energy, and reprocessing uses as demineralized water.
Summary of the invention
The technical issues that need to address of the present invention are to provide air cooling turbine high back pressure heat supply power generating simultaneously method, and it can increase substantially generated energy and area of heat-supply service, and cold end loss is zero, reduce gross coal consumption rate, efficient energy-saving, economic and practical.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
Air cooling turbine high back pressure heat supply power generating simultaneously method, the steam turbine comprise condensate polishing system, being connected with boiler and generator, described steam turbine set comprises the air cooling turbine of at least one back pressure ranges at 6 ~ 60kpa, being 36 ~ 50kPa in the back pressure ranges for warm season air cooling turbine, is 6 ~ 10kPa in the non-back pressure ranges for warm season air cooling turbine; The low pressure (LP) cylinder of air cooling turbine is connected with vapour condenser, and vapour condenser is also connected with municipal heating systems, precision processing device of condensation water respectively.
The further improvement of technical solution of the present invention is: the high intermediate pressure cylinder of air cooling turbine is connected with heat exchangers for district heating by pipeline, and heat exchangers for district heating is connected by arranging valvular pipeline with municipal heating systems.
The further improvement of technical solution of the present invention is: Turbine with Air Cooled, to take out between solidifying unit in parallel.
The further improvement of technical solution of the present invention is: Turbine with Air Cooled hot well, take out solidifying unit hot well and be connected with same mixing tank, and mixing tank is connected with precision processing device of condensation water.
The further improvement of technical solution of the present invention is: described vapour condenser adopts double pressure condenser.
The further improvement of technical solution of the present invention is: precision processing device of condensation water is the ion-exchange unit being loaded with ion exchange resin with high temperature resistance.
The further improvement of technical solution of the present invention is: the recirculated cooling water pipeline that vapour condenser is connected with cooling structure is provided with separation valve door.
The further improvement of technical solution of the present invention is: Turbine with Air Cooled, take out solidifying unit and connect respective cooling structure respectively; Or Turbine with Air Cooled, take out solidifying unit and be connected to same cooling structure.
The further improvement of technical solution of the present invention is: arranging a flow between Turbine with Air Cooled and cooling structure is the circulating water pump of 100%, and taking out and arranging two flows between solidifying unit and cooling structure is 50% circulating water pump.
The further improvement of technical solution of the present invention is: the feed water pump of Turbine with Air Cooled adopts motor run.
Owing to have employed technique scheme, the technological progress that the present invention obtains is:
Air cooling turbine high back pressure heat supply power generating simultaneously method of the present invention, for the initial stage in hot season, draws gas without heat supply, the thermal source of heating network all comes from the exhaust steam finishing merit, utilize exhaust steam by the heat of vapour condenser supply municipal heating systems, cold end loss is zero, improves area of heat-supply service; Non-for hot season low back pressure operation, reduce gross coal consumption rate, efficient energy-saving, economic and practical.
Steam turbine set at least comprises an air cooling turbine, this air cooling turbine can in the back pressure ranges of 6 ~ 60kpa continuous and steady operation, larger back pressure ranges, when making Turbo-generator Set in the winter time high back pressure 36 ~ 50kPa heat supply generating; During summer, efficient pure condensate generating in 6 ~ 10kPa in back pressure ranges, reduces coal consumption.The final blade length of the low pressure (LP) cylinder of air cooling turbine is 500mm ~ 800mm, and thickness is 30.618 ~ 7.049mm, short and thick exhaust stage blade, enhances strong unit vibration-resistant ability, unit operation safety and stability.
When exhaust steam in vapour condenser becomes liquid state from gaseous state, release amount of heat, heat supply network circulating water flows through in vapour condenser, and the heat of 50 DEG C ~ 55 DEG C this exhaust steam of heat supply network circulating water condensation releases is heated to 70 DEG C ~ 85 DEG C, the heat of exhaust steam is all for heating, and cold end loss is zero; Meanwhile, air cooling turbine is without drawing gas, and the steam discharge of intermediate pressure cylinder all enters low pressure (LP) cylinder, adds the throttle flow of low pressure (LP) cylinder, thus adds generated energy; Significantly can improve generated energy, significantly can improve again the double effects of area of heat-supply service.
At severe cold season, the heat of exhaust steam release fully can not supply city heat, need to take to draw gas to heat exchangers for district heating heating heat supply network circulating water (water outlet of vapour condenser) from the intermediate pressure cylinder of Turbine with Air Cooled or an other intermediate pressure cylinder end taking out condensing turbine, by regulating the vapour amount entering low pressure (LP) cylinder, reach the optimum proportioning of generating, heat supply, both meet heat supply, improved generated energy again, reduce the coal consumption amount under identical heat supply, power generation requirements.
The steam turbine set of present patent application can also be the combination that Turbine with Air Cooled is in parallel with other types steam turbine set or connect, such as Turbine with Air Cooled with take out solidifying parallel machine operation, the condenser hotwell of Turbine with Air Cooled, the condenser hotwell taking out solidifying unit are all connected with same mixing tank, make the mutual blending in mixing tank of the cold water in two hot wells and hot water, the water temperature of the hot well of two units can be made lower than 70 DEG C, can not condensed water precision processing system be affected; The demineralized water moisturizing of two units, all mends the hot well to Turbine with Air Cooled simultaneously, reduces water of condensation water temperature.
Vapour condenser adopts double pressure condenser, and the average back pressure of double pressure condenser places an order lower than equal conditions the back pressure of back pressure vapour condenser, and therefore the enthalpy drop of steam turbine low pressure (LP) cylinder just increases, thus improves the Economy of steam turbine.
Condensed water precision processing system adopts the ion-exchange unit of resistant to elevated temperatures ion exchange resin, ion exchange resin is high temperature resistant and heat exchange efficiency is high, the water of condensation of Turbine with Air Cooled directly enters precision processing device, decrease the condensation water-cooled time, improve the efficiency of Ion exchange resin, and then improve the operational efficiency of whole cogeneration units.
The connecting tube of vapour condenser and cooling tower is provided with valve.Turbine with Air Cooled in the winter time time electric power plant circulating water system idle, the design of circulation adopts the scheme of investment reduction, adopt mechanical-draft cooling tower as cooled structure, circulating water pump adopts the form of an air cooling turbine group configuration recycle pump, improves fund utilization rate.
Arranging a flow between Turbine with Air Cooled and cooling structure is the circulating water pump of 100%, and taking out and arranging two flows between solidifying unit and cooling structure is 50% circulating water pump.Turbine with Air Cooled in the winter time time adopt the exhaust steam of heat supply network circulating water, only arrange the circulating water pump of 100%, avoid idleness of equipment during summer, fund utilization ratio is high.The annual recirculating cooling water system that adopts of exhaust steam cooling taking out solidifying unit cools, and arranges the circulating water pump of two 50%, is conducive to the adjustment of the unit water yield.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein, 1, boiler; 2, high intermediate pressure cylinder; 3, low pressure (LP) cylinder; 4, generator; 5, vapour condenser; 6, heat exchangers for district heating; 7, pumps for hot water supply net; 8, heat exchanger; 9, low-pressure heater; 10, oxygen-eliminating device; 11, boiler replenishing water pump group; 12, high-pressure heater; 13, structure are cooled; 14, circulating water pump; 15, precision processing device of condensation water.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details:
As shown in Figure 1, air cooling turbine high back pressure heat supply power generating simultaneously method, comprise the steam turbine set be connected with boiler 1 and generator 4, steam turbine set comprises Turbine with Air Cooled in parallel and takes out solidifying unit, Turbine with Air Cooled at least comprises an air cooling turbine, this steam turbine can in the back pressure ranges of 6 ~ 60kpa continuous and steady operation, for warm season run back pressure ranges be 36 ~ 50kPa, non-for warm season run back pressure be 6 ~ 10kPa.The high intermediate pressure cylinder 2 of air cooling turbine is connected with boiler 1, and low pressure (LP) cylinder 3 is connected with generator 4, and the steam that boiler 1 produces does work through the high intermediate pressure cylinder 2 of air cooling turbine, low pressure (LP) cylinder 3 successively, and changes mechanical energy is electric energy; Exhaust steam in air cooling turbine low pressure (LP) cylinder 3 after acting, is drained in vapour condenser, with certain heat in exhaust steam, may be used for heating; The exhaust stage blade of the low pressure (LP) cylinder 3 of air cooling turbine is short and thick, intensity is large, final blade length is 500mm ~ 800mm, thickness is 30.618 ~ 7.049mm, short and thick exhaust stage blade can bear larger back pressure, the comparatively large then exhaust steam of back pressure with energy higher, the heat of condensation process release is large compared with existing steam turbine, and the coolant-temperature gage that vapour condenser 5 is exported is higher.The low pressure (LP) cylinder 3 of air cooling turbine is connected with vapour condenser 5, vapour condenser 5 is connected by heat supply network circulating water pipeline with municipal heating systems, the heat of exhaust steam liquefaction release carries out heat exchange with heat supply network circulating water in vapour condenser 5, the temperature of heat supply network circulating water is increased to 70 DEG C ~ 85 DEG C, to municipal heating systems circulating water heating from 50 DEG C ~ 55 DEG C when entering vapour condenser; Water of condensation supply boiler feed water again after treatment after exhaust steam condensation, water of condensation enters boiler 1 through precision processing device of condensation water 15 connected successively, heat exchanger 8, low-pressure heater 9, oxygen-eliminating device 10, boiler replenishing water pump group 11, high-pressure heater 12.Vapour condenser adopts double pressure condenser or single back pressure vapour condenser.
The high intermediate pressure cylinder 2 of air cooling turbine is connected by pipeline with heat exchangers for district heating 6, and pipeline is provided with valve, and valve can bleeding regulating amount, and heat exchangers for district heating 6 is connected with municipal heating systems.Work as damage, i.e. severe cold season, when the heat that municipal heating systems needs is large, bleed from the end of the high intermediate pressure cylinder 2 of air cooling turbine, through heat exchangers for district heating 6, send in municipal heating systems.Heat supply network circulating water pipeline is provided with pumps for hot water supply net 7, for promoting and accelerating the circulation of heat supply network circulating water.
The combining form of steam turbine set is optional with under type: Turbine with Air Cooled, one take out the isolated operation in parallel of solidifying unit; Turbine with Air Cooled, one take out solidifying units connected in series; Two Turbine with Air Cooled parallel connections.The condenser hotwell of Turbine with Air Cooled, the condenser hotwell taking out solidifying unit are connected to same mixing tank, the condenser hotwell of Turbine with Air Cooled, take out solidifying unit condenser hotwell all therewith mixing tank be connected, make the mutual blending in mixing tank of the cold water in two hot wells and hot water, in order to the exchange heat of the water in two condenser hotwells, generally that mixing tank is connected with precision processing device of condensation water 15 with the water taken out in the condenser hotwell of solidifying unit to the water for cooling in Turbine with Air Cooled condenser hotwell.When two air cooling turbines are in parallel, wherein two air cooling turbines arrange unified a set of subsidiary engine cooling water system.
The feed water pump of Turbine with Air Cooled adopts motor run or adopts small turbine to drag; When the feed water pump of Turbine with Air Cooled adopts small turbine to drag, the steam discharge of small turbine drains into the low pressure steam chest of double pressure condenser.Turbine with Air Cooled and take out solidifying unit and need supplementary demineralized water, when taking out the solidifying unit amount of drawing gas and increasing, condensing capacity reduces, and reduces Turbine with Air Cooled condensing water temperature limited, demineralized water all mends the hot well to Turbine with Air Cooled, is conducive to reducing Turbine with Air Cooled condensing water temperature.
Vapour condenser 5 is connected by the recirculated cooling water pipeline being provided with separation valve door with cooling structure 13; Cooling structure 13 refer to following any one: cooling tower, machine power tower, clammy natural tower, clammy machine power tower, exhaust cooling tower or indirect dry cooling tower etc.Steam turbine set with cooling structure 13 combining form can be: Turbine with Air Cooled, take out solidifying unit share a cooling tower; Or take out solidifying unit and adopt clammy natural tower, Turbine with Air Cooled adopts clammy natural tower; Or take out solidifying unit and adopt clammy natural tower, Turbine with Air Cooled adopts clammy machine power tower; Or take out solidifying unit and adopt clammy machine power tower, Turbine with Air Cooled adopts clammy machine power tower; Or take out solidifying unit and adopt exhaust cooling tower, Turbine with Air Cooled adopts clammy machine power tower; Or take out solidifying unit and adopt exhaust cooling tower, Turbine with Air Cooled adopts clammy natural tower; Or Turbine with Air Cooled, take out solidifying unit and respectively connect an indirect dry cooling tower; Or Turbine with Air Cooled, take out solidifying unit share an indirect dry cooling tower.Turbine with Air Cooled adopts machine power tower, fund utilization ratio can be improved, simultaneously, because Turbine with Air Cooled requires low to the water temperature of cooling water, the power consumption of machine power tower can be made very low, and because the circulating water lift of pump of machine power tower scheme is lower than natural cooling tower, during summer, the cold junction power consumption of Turbine with Air Cooled can not higher than the power consumption taking out solidifying unit.According to hear rate-back pressure curve, when the operating mode of non-heating season, Turbine with Air Cooled has lower hear rate, and namely generating efficiency is higher.
Arranging a flow between Turbine with Air Cooled and cooling structure 13 is the circulating water pump of 100%, takes out between solidifying unit and cooling tower and arranges two 50% circulating water pump; Or the circulating water pump of two flows 50% is set between Turbine with Air Cooled and cooling structure 13, takes out between solidifying unit and cooling structure 13 and two flow 50% circulating water pump are set; Or Turbine with Air Cooled and take out solidifying unit and cooling structure 13 between three flow 33% circulating water pump are set.
Heat exchanger 8 is plate type heat exchanger, and when under the operating mode that heat exchangers for district heating 6 puts into operation, heat supply network hydrophobic part removes oxygen-eliminating device 10, for heat-setting water; Part removes heat exchanger 8, for reducing the temperature that heat exchangers for district heating is hydrophobic, is recycled to vapour condenser 5, is then delivered to precision processing device of condensation water by water of condensation water pump after reducing temperature.When heat exchangers for district heating 6 does not put into operation, flow to heat exchanger 8 without heat exchangers for district heating 6 is hydrophobic.
Precision processing device of condensation water 15 is the ion-exchange units adopting ion exchange resin with high temperature resistance.
Air cooling turbine high back pressure heat supply power generating simultaneously method ratio " low pressure rotor exchange technology " of present patent application is invested low by about 3,000 ten thousand, without the need to expending the exchange rotor duration of 50 days, without the need to frequently opening low pressure (LP) cylinder, reduces the hidden danger of safety in production; By reasonably designing the design back-pressure of air cooling turbine, there is when non-heating season runs the thermal efficiency higher than " low pressure rotor exchange technology "; Lower than the investment of NCB unit by about 2,000 ten thousand, higher than the efficiency of utilization of NCB unit (NCB unit is supplying the hot season, and steam quality is still very high, and acting ability wastes), electric 7 ten thousand kws more multiple than NCB unit are identical with the heat capacity of NCB unit.
Conservative estimation, when identical coal consumption, if only arrange an air cooling turbine, then the 350MW of comparable routine overcritical take out solidifying thermal power plant unit in the winter time time can multiple electric 4 ~ 70,000 kW, increase area of heat-supply service 25%.Calculate by for hot season 3000h, rate for incorporation into the power network 0.36 yuan/kwh for the hot season, generating net profit increases by 4320 ~ 7,560 ten thousand yuan; Caloric value is considered by 30 yuan/GJ, and increase heat supply 1120380GJ, heat supply net profit increases by 3,207 ten thousand yuan.Profit about 7527 ~ 10,767 ten thousand yuan can be increased for the hot season.If Urban Thermal load is comparatively large, adopt 2 air cooling turbines, its profit can be doubled.
Claims (7)
1. an air cooling turbine high back pressure heat supply power generating simultaneously method, the steam turbine set comprise condensate polishing system, being connected with boiler (1) and generator (4), it is characterized in that: described steam turbine set comprises Turbine with Air Cooled in parallel and takes out solidifying unit, described Turbine with Air Cooled comprises the air cooling turbine of at least one back pressure ranges at 6 ~ 60kpa, being 36 ~ 50kPa in the back pressure ranges for warm season air cooling turbine, is 6 ~ 10kPa in the non-back pressure ranges for warm season air cooling turbine; The low pressure (LP) cylinder (3) of air cooling turbine is connected with vapour condenser (5), and vapour condenser (5) is also connected with municipal heating systems, precision processing device of condensation water (15) respectively;
The high intermediate pressure cylinder (2) of air cooling turbine is connected with heat exchangers for district heating (6) by pipeline, and heat exchangers for district heating (6) is connected by arranging valvular pipeline with municipal heating systems;
Turbine with Air Cooled hot well, take out solidifying unit hot well and be connected with same mixing tank, mixing tank is connected with precision processing device of condensation water (15).
2. air cooling turbine high back pressure heat supply power generating simultaneously method according to claim 1, is characterized in that: described vapour condenser (5) adopts double pressure condenser.
3. air cooling turbine high back pressure heat supply power generating simultaneously method according to claim 1, is characterized in that: precision processing device of condensation water (15) is the ion-exchange unit being loaded with ion exchange resin with high temperature resistance.
4. air cooling turbine high back pressure heat supply power generating simultaneously method according to claim 1, is characterized in that: the recirculated cooling water pipeline that vapour condenser (5) is connected with cooling structure (13) is provided with separation valve door.
5. air cooling turbine high back pressure heat supply power generating simultaneously method according to claim 4, is characterized in that: Turbine with Air Cooled, take out solidifying unit and connect respective cooling structure (13) respectively; Or Turbine with Air Cooled, take out solidifying unit and be connected to same cooling structure (13).
6. air cooling turbine high back pressure heat supply power generating simultaneously method according to claim 4, it is characterized in that: arrange the circulating water pump (14) that a flow is 100% between Turbine with Air Cooled and cooling structure (13), taking out and arranging two flows between solidifying unit and cooling structure (13) is 50% circulating water pump (14).
7. air cooling turbine high back pressure heat supply power generating simultaneously method according to claim 1, is characterized in that: the feed water pump of Turbine with Air Cooled adopts motor run.
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| CN105953286A (en) * | 2016-06-25 | 2016-09-21 | 郝炜 | Initial heat supply network station for waste heat utilization of coal-fired power plant |
| CN106931485B (en) * | 2017-04-01 | 2017-12-08 | 晟源高科(北京)科技有限公司 | A kind of regulating of heating net method using heating network energy storage |
| CN108194155B (en) * | 2018-02-08 | 2023-08-29 | 西安西热节能技术有限公司 | System for improving summer operation vacuum of heat supply unit |
| CN111059599A (en) * | 2019-12-28 | 2020-04-24 | 宁波杭州湾新区祥源动力供应有限公司 | Heating and cooling recycling system based on steam condensate of heat exchange station |
| CN111207602B (en) * | 2020-02-17 | 2024-03-15 | 国能龙源蓝天节能技术有限公司 | System and method for cooling condensed water of high back pressure heat supply unit in grading manner |
| CN111765507B (en) * | 2020-05-18 | 2021-07-27 | 华电电力科学研究院有限公司 | Improved heat supply initial station system and working method thereof |
| CN112964492B (en) * | 2021-03-22 | 2023-03-21 | 西安热工研究院有限公司 | Heat supply coal consumption online measuring method suitable for high-backpressure step heat supply unit |
| CN113187568B (en) * | 2021-05-28 | 2022-12-20 | 西安热工研究院有限公司 | System and method for reversely improving power supply and heat supply capacity of high-back-pressure heat supply unit |
| CN115264478A (en) * | 2022-06-24 | 2022-11-01 | 张近 | Power generation heating device based on air energy boiler |
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| GB2078864A (en) * | 1980-06-30 | 1982-01-13 | Wilson Harold | District heating by combined heat and power |
| JPH02146208A (en) * | 1988-11-24 | 1990-06-05 | Hitachi Ltd | Compound heat utilizing plant |
| CN202008178U (en) * | 2011-01-20 | 2011-10-12 | 山东泓奥电力科技有限公司 | Low-pressure cylinder back pressure rotor interchanging circulating water heat supplying and energy saving system |
| CN203114363U (en) * | 2013-01-08 | 2013-08-07 | 山东泓奥电力科技有限公司 | Large thermal generator set high back pressure circulating water heat supplying energy-saving system |
| CN203797762U (en) * | 2013-12-24 | 2014-08-27 | 华电国际电力股份有限公司山东分公司 | Double-backpressure circulating water heat supply system |
| CN103697524B (en) * | 2013-12-24 | 2015-12-09 | 华电国际电力股份有限公司山东分公司 | Two back pressure circulating water heating system |
| CN103967544A (en) * | 2014-05-19 | 2014-08-06 | 山东泓奥电力科技有限公司 | Waste heat utilization system of gas-steam combined cycle generator set |
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