CN208871601U - The industrial vapour temperature reducing system of pressure water supply substitution condensed water in a kind of utilization - Google Patents
The industrial vapour temperature reducing system of pressure water supply substitution condensed water in a kind of utilization Download PDFInfo
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- CN208871601U CN208871601U CN201821147149.2U CN201821147149U CN208871601U CN 208871601 U CN208871601 U CN 208871601U CN 201821147149 U CN201821147149 U CN 201821147149U CN 208871601 U CN208871601 U CN 208871601U
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Abstract
The utility model discloses the industrial vapour temperature reducing systems that water supply substitution condensed water is pressed in a kind of utilization for belonging to power station heat supply process field.The system mainly includes the parts such as boiler, Steam Turbine, generator, temperature-decreased pressure reducer.The system utilizes the middle pressure water supply after fore pump, and the condensed water after substituting original condensate pump enters extraction steam for factories temperature-decreased pressure reducer, pressure and temperature reducing is carried out to extraction steam for factories, and original system continues to retain, as spare accident desuperheat.The utility model, which passes through, carries out pressure and temperature reducing to extraction steam for factories using the middle pressure water supply close to saturation, under the premise of guaranteeing external evaporation capacity for engine, the extraction steam for factories amount of high-quality can be effectively reduced, the blending that the too low condensed water of temperature and extraction steam for factories carry out the big temperature difference in temperature-decreased pressure reducer is avoided simultaneously, reduce the damage that temperature-decreased pressure reducer generates, the cascade utilization for realizing energy can effectively improve efficiency of generating unit, save power plant's coal consumption.
Description
Technical field
The utility model belongs to power station heat supply process field, in particular to the work of pressure water supply substitution condensed water in a kind of utilization
Industry vapour temperature reducing system.
Background technique
Along with the development of industrial economy, AND ENERGY RESOURCES CONSUMPTION IN CHINA amount increases year by year, especially fossil energy, since it belongs to
Non-renewable energy resources, a large amount of exploitation and use, storage capacity is fewer and fewer, and therefore, energy shortage problem gradually highlights, together
When, largely the environmental cost for being difficult to retrieve is produced using fossil energy.
In order to alleviate energy shortage problem and environmental problem, realizes the cleaning of fossil energy, efficiently utilizes, country is to energy conservation
Higher and higher with the requirement of environmental protection, especially to this major power consumer of power plant, the standard of coal consumption and pollutant emission is all more
Add stringent.
Therefore, power plant, China all starts to be dedicated to energy saving optimizing and upgrading, in terms of reducing coal consumption, cogeneration of heat and power
Central heating is a direction, while being also externally a direction for factory steam.Externally for the parameter of factory steam, according to
The different differences at family, the parameter of factory steam is relatively high in most cases, so the industry from steam turbine is taken out
The parameter of vapour is also higher, and extraction steam for factories is typically from steam turbine two and takes out (cold section of reheated steam) or the pumping of steam turbine four, has
Unit is for security consideration, and extraction steam for factories is from reheated steam hot arc steam extraction.
In order to meet the parameter of factory steam, while the use of high-temperature material is reduced, extraction steam for factories generally subtracts by desuperheat
After depressor, user is resupplied.However, the source of desuperheating water is the condensed water after solidifying pump, temperature and work mostly in temperature-decreased pressure reducer
Industry steam extraction differs greatly, and directly mixing can generate very big damage, and wasted more high-quality extraction steam for factories does function
Power.
Utility model content
The purpose of this utility model be for power plant it is externally unreasonable for industrial vapour desuperheating water source, extraction steam for factories parameter with
Condensed water parameter has big difference, and energy utilization is not unreasonable, efficient, causes steam turbine high-quality extraction steam for factories acting ability damage
It loses, the higher problem of coal consumption, by proposing a kind of middle pressure water supply using after fore pump, after substituting original condensate pump
Condensed water enters the scheme of extraction steam for factories temperature-decreased pressure reducer, is subtracted in this way using the middle pressure water supply close to saturation to extraction steam for factories
Temperature decompression, under the premise of guaranteeing external evaporation capacity for engine, can effectively reduce the extraction steam for factories amount of high-quality, while avoiding temperature
Too low condensed water and extraction steam for factories carries out the blending of the big temperature difference in temperature-decreased pressure reducer, reduces what temperature-decreased pressure reducer generated
Damage, realizes the cascade utilization of energy, can effectively improve efficiency of generating unit, saves power plant's coal consumption.
In order to achieve the above objectives, the utility model uses following technical scheme:
The industrial vapour temperature reducing system of pressure water supply substitution condensed water in a kind of utilization, which mainly includes boiler, steam turbine
High pressure cylinder, Steam Turbine Through IP Admission, turbine low pressure cylinder, generator, temperature-decreased pressure reducer；It is characterized in that, the steam turbine is high
Cylinder pressure, Steam Turbine Through IP Admission, turbine low pressure cylinder are connected with generator coaxle；The water supply after boiler is heated to be steam,
Successively by steam turbine high-pressure cylinder, Steam Turbine Through IP Admission, turbine low pressure cylinder acting, generator is driven externally to generate electricity；Described
Turbine low pressure cylinder steam exhaust imports hot well after entering condenser condensation；Condensed water in the hot well successively passes through condensed water
Pump enters oxygen-eliminating device after low add-back hot systems, using fore pump, after feed pump boosting, into high add-back hot systems, finally into
Enter boiler, forms a complete working medium circulation；The Steam Turbine Through IP Admission four takes out steam extraction and is divided into two strands, one enters deoxygenation
For device as heating vapour source, one enters temperature-decreased pressure reducer by the first control valve；The temperature-decreased pressure reducer desuperheating water has two strands,
One is from condensed water after condensate pump, one is from middle pressure water supply after fore pump；The high add-back hot systems are hydrophobic step by step
Gravity flow, finally imports oxygen-eliminating device；The low add-back hot systems are hydrophobic to flow automatically step by step, finally imports hot well.
The first control valve control is entered the flow of temperature-decreased pressure reducer, fore pump by Steam Turbine Through IP Admission extraction steam for factories
Attemperation water flow is adjusted by the second control valve afterwards, and the flow of desuperheating water is adjusted by third control valve after condensate pump.
The temperature-decreased pressure reducer desuperheating water source has two strands, is preferentially made under normal circumstances using pressure water supply middle after fore pump
For desuperheating water, it is spare to be only used as accident desuperheating water for condensed water after condensate pump.
The temperature-decreased pressure reducer, by adjusting the aperture of the first control valve, the second control valve, control enters pressure and temperature reducing
The extraction steam for factories amount and spray water flux of device, make the parameter of export industries steam supply meet user demand.
The utility model have the following advantages that and the utility model has the advantages that
In unit externally for during factory steam, using the middle pressure water supply after fore pump, after substituting original condensate pump
Condensed water enter extraction steam for factories temperature-decreased pressure reducer, to extraction steam for factories carry out pressure and temperature reducing, it is more matched that parameter is rationally utilized
Middle pressure water supply can effectively reduce the extraction steam for factories amount of high-quality, reduce unit height under the premise of guaranteeing external evaporation capacity for engine
The acting capacity loss of grade extraction steam for factories, while the too low condensed water of temperature and extraction steam for factories are avoided in temperature-decreased pressure reducer
The blending of the big temperature difference is carried out, the damage that temperature-decreased pressure reducer generates is reduced, realizes the cascade utilization of energy, unit hair can be effectively improved
Electrical efficiency saves power plant's coal consumption, and original system continues to retain, and as spare accident desuperheat, provides for unit safety operation
It ensures.
Detailed description of the invention
Fig. 1 is the industrial vapour temperature reducing system that pressure water supply substitutes condensed water in a kind of utilization
In figure: 1-boiler；2-steam turbine high-pressure cylinders；3-Steam Turbine Through IP Admissions；4-turbine low pressure cylinders；5-generators；6–
Condenser；7-hot wells；8-condensate pumps；9-low add-back hot systems；10-oxygen-eliminating devices；11-fore pumps；12-feed pumps；13-Gao Jia
Heat regenerative system；14-temperature-decreased pressure reducers；15-the first control valves；16-the second control valves；17-third control valves.
Specific embodiment
The utility model provides a kind of industrial vapour temperature reducing system of pressure water supply substitution condensed water in utilization, below with reference to attached
Figure and specific embodiment are described further this system working principle.
Fig. 1 is the industrial vapour temperature reducing system schematic diagram that pressure water supply substitutes condensed water in a kind of utilization
The industrial vapour temperature reducing system of pressure water supply substitution condensed water in a kind of utilization, which mainly includes boiler 1, steam turbine
High pressure cylinder 2, Steam Turbine Through IP Admission 3, turbine low pressure cylinder 4, generator 5, temperature-decreased pressure reducer 14；It is characterized in that, the vapour
Turbine high pressure cylinder 2, Steam Turbine Through IP Admission 3, turbine low pressure cylinder 4 and generator 5 is coaxial is connected；The water supply adds through boiler 1
Heat is successively does work after steam by steam turbine high-pressure cylinder 2, Steam Turbine Through IP Admission 3, turbine low pressure cylinder 4, drive generator 5
Externally power generation；4 steam exhaust of turbine low pressure cylinder, which enters after condenser 6 condenses, imports hot well 7；It is solidifying in the hot well 7
It bears water and successively passes through condensate pump 8, enter oxygen-eliminating device 10 after low add-back hot systems 9, using fore pump 11, feed pump 12 boosts
Afterwards, into high add-back hot systems 13, boiler 1 is eventually entered into, forms a complete working medium circulation；The Steam Turbine Through IP Admission
3 four pumping steam extractions are divided into two strands, one enters oxygen-eliminating device 10 as heating vapour source, one subtracts by the first control valve 15 into desuperheat
Depressor 14；14 desuperheating water of temperature-decreased pressure reducer has two strands, one is from condensed water after condensate pump 8, one is from preposition
Middle pressure water supply after pump 11；The high add-back hot systems 13 are hydrophobic to flow automatically step by step, final to import oxygen-eliminating device 10；The low add-back
Hot systems 9 are hydrophobic to flow automatically step by step, final to import hot well 7.
First control valve 15 control is entered the flow of temperature-decreased pressure reducer 14 by 3 extraction steam for factories of Steam Turbine Through IP Admission,
Attemperation water flow is adjusted by the second control valve 16 after fore pump 11, and the flow of desuperheating water is controlled by third after condensate pump 8
Valve 17 is adjusted.
The 14 desuperheating water source of temperature-decreased pressure reducer has two strands, is preferentially given under normal circumstances using pressure middle after fore pump 11
Water is as desuperheating water, and it is spare to be only used as accident desuperheating water for condensed water after condensate pump 8.
The temperature-decreased pressure reducer 14, by adjusting the aperture of the first control valve 15, the second control valve 16, control enters
The extraction steam for factories amount and spray water flux of temperature-decreased pressure reducer 14, make the parameter of export industries steam supply meet user demand.
Its course of work are as follows: in unit externally for opening the first control valve 15, Steam Turbine Through IP Admission 3 during factory steam
Four sections of steam extractions enter temperature-decreased pressure reducer 14, open the second control valve 16, and middle pressure water supply enters temperature-decreased pressure reducer 14 after fore pump 11
Desuperheat is carried out to extraction steam for factories, according to the requirement of industrial vapour user, passes through control valve aperture regulation industry steam supply flow and temperature
Degree, pressure and other parameters, to meet needed for user.
Above embodiment is not limitations of the present invention, and those skilled in the art are in the utility model
Technical proposal scope in the variations, modifications, additions or substitutions made, also belong to the protection scope of the utility model.
Claims (4)
1. pressing the industrial vapour temperature reducing system of water supply substitution condensed water in a kind of utilization, which mainly includes boiler (1), steam turbine
High pressure cylinder (2), Steam Turbine Through IP Admission (3), turbine low pressure cylinder (4), generator (5), temperature-decreased pressure reducer (14)；Its feature exists
In, the steam turbine high-pressure cylinder (2), Steam Turbine Through IP Admission (3), turbine low pressure cylinder (4) and generator (5) is coaxial is connected；
Water supply successively passes through steam turbine high-pressure cylinder (2), Steam Turbine Through IP Admission (3), steam turbine low-pressure after boiler (1) is heated to be steam
Cylinder (4) acting, drives generator (5) externally to generate electricity；After described turbine low pressure cylinder (4) steam exhaust enters condenser (6) condensation
It imports hot well (7)；Condensed water in the hot well (7) successively passes through condensate pump (8), and low add-back hot systems (9) enter afterwards
Oxygen-eliminating device (10), into high add-back hot systems (13), eventually enters into pot after feed pump (12) boosting using fore pump (11)
Furnace (1) forms a complete working medium circulation；The Steam Turbine Through IP Admission (3) four takes out steam extraction and is divided into two strands, one, which enters, removes
For oxygen device (10) as heating vapour source, one enters temperature-decreased pressure reducer (14) by the first control valve (15)；The pressure and temperature reducing
Device (14) desuperheating water has two strands, one comes from condensate pump (8) condensed water afterwards, one is from fore pump (11) middle pressure water supply afterwards；
The high add-back hot systems (13) are hydrophobic to be flow automatically step by step, finally imports oxygen-eliminating device (10)；The low add-back hot systems (9) are dredged
Water flows automatically step by step, finally imports hot well (7).
2. pressing the industrial vapour temperature reducing system of water supply substitution condensed water in a kind of utilization according to claim 1, feature exists
In, the first control valve (15) control is entered the flow of temperature-decreased pressure reducer (14) by Steam Turbine Through IP Admission (3) extraction steam for factories,
Attemperation water flow is adjusted fore pump (11) by the second control valve (16) afterwards, and the flow of condensate pump (8) desuperheating water afterwards passes through the
Three control valves (17) are adjusted.
3. pressing the industrial vapour temperature reducing system of water supply substitution condensed water in a kind of utilization according to claim 1, feature exists
In the temperature-decreased pressure reducer (14) desuperheating water source has two strands, and fore pump (11) is middle afterwards to press water supply as desuperheating water, condensed water
To be only used as accident desuperheating water spare for condensed water afterwards for pump (8).
4. the industrial vapour temperature reducing system of water supply substitution condensed water is pressed in a kind of utilization according to claim 1, which is characterized in that
The temperature-decreased pressure reducer (14), by adjusting the aperture of the first control valve (15), the second control valve (16), control enters desuperheat
The extraction steam for factories amount and spray water flux of pressure reducer (14), make the parameter of export industries steam supply meet user demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821147149.2U CN208871601U (en) | 2018-07-19 | 2018-07-19 | The industrial vapour temperature reducing system of pressure water supply substitution condensed water in a kind of utilization |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821147149.2U CN208871601U (en) | 2018-07-19 | 2018-07-19 | The industrial vapour temperature reducing system of pressure water supply substitution condensed water in a kind of utilization |
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| CN208871601U true CN208871601U (en) | 2019-05-17 |
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| CN201821147149.2U Expired - Fee Related CN208871601U (en) | 2018-07-19 | 2018-07-19 | The industrial vapour temperature reducing system of pressure water supply substitution condensed water in a kind of utilization |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112507534A (en) * | 2020-11-25 | 2021-03-16 | 山东电力研究院 | Conversion method and system for power supply coal consumption rate of cogeneration unit in heat supply period |
| CN112682827A (en) * | 2021-01-11 | 2021-04-20 | 北京京诚科林环保科技有限公司 | Coal gas power generation double-desuperheating water heating system and method |
-
2018
- 2018-07-19 CN CN201821147149.2U patent/CN208871601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112507534A (en) * | 2020-11-25 | 2021-03-16 | 山东电力研究院 | Conversion method and system for power supply coal consumption rate of cogeneration unit in heat supply period |
| CN112682827A (en) * | 2021-01-11 | 2021-04-20 | 北京京诚科林环保科技有限公司 | Coal gas power generation double-desuperheating water heating system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20200719 |
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| CF01 | Termination of patent right due to non-payment of annual fee |