CN103292383B - A kind of operation control operation method of circulating water heating unit - Google Patents
A kind of operation control operation method of circulating water heating unit Download PDFInfo
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Abstract
The present invention relates to a kind of progress control method of circulating water heating unit, the method comprises: the change of monitored parameter and the control of unit; At high back pressure under thermal condition, monitor the change of parameter generation compared with under pure condensate operating mode of turbine low pressure cylinder part; In the rate-determining steps of unit, comprise the control to heating network parameter, to the control of steam-operating water circulating pump, to the control of low pressure differential expansion, and the control of centering pressure vapour parameter.The method is by reasonable disposition step, by to can realize large area, large discharge high back pressure circulating water heating unit operation control, solve the problem that complex operation step existing for correlation technique and implementation cost in prior art are larger, and the defect that investment cost existing for it is larger, energy-conservation and economic benefit is less, Site Implementation adaptability is poor and security reliability is poor, meet the needs of actual conditions.
Description
Technical field
The invention belongs to circulating water heating unit allocation technical field, relate to a kind of operation control operation method of circulating water heating unit, particularly relate to a kind of operation control operation method that can realize large area, large discharge high back pressure circulating water heating unit.
Background technology
At present, the economy of China increases fast, resource full-scale development, and every construction obtains great achievement, but has also paid huge resources and environment cost simultaneously for this reason.Along with the contradiction of economic development and resource environment is increasingly sharp-pointed, the phenomenon of air pollution and shortage of resources also becomes increasingly conspicuous, and becomes topic the severeest now.This situation and existing irrationality of the economic structure, extensive pattern of economic growth are directly related.The related request of " promoting production of energy and Land use systems change " is specify that in " 12 " planning; adhere to economization at first, base on our country, diverse development, protection of the environment; adjusting and optimizing energy resource structure, builds safety, stable, economic, clean modern energy industry system.Chinese Government has also made serious promise to the world: the emission reduction targets to the year two thousand twenty China is carbon emission decline 40-45%.Therefore, vigorously advocate energy-saving and cost-reducing, actively pushing forward is new equipment, new technology, the new technology of main target with energy-conservation, and it is imperative that the Thermal Power Enterprises that especially energy input is larger implements energy-saving and cost-reducing research and extension.
In addition, along with improving constantly of living standards of the people, area of heat-supply service is constantly developed, heating load constantly increases, as the heat supply work of one of government's " people's livelihood " engineering, relate to the quality of life of huge numbers of families, day by day paid attention to, so develop new heat supply process to become the good exploration ensureing reliability of heat-supply system, there is important social effect.Current China heating subsidy is based on extraction for heat supply and little unit low vacuum back pressure heat supply process, minority region has and utilizes earth source heat pump to implement for cold-peace heat supply, in addition, due to the continuous expansion of area of heat-supply service and scrap build delayed, the boiler heat supplying mode that occupies a narrow space still exists, this heat-supplying mode not only environmental pollution is serious, and economy extreme difference.In addition, although the heat supply of Large-scale machine set back pressure is current better heat-supplying mode, the unit run in this way only has an example, and just rests in disposable transformation that low pressure rotor and corresponding dividing plate carry out, cause non-heat supply phase economy extreme difference, make annual economic benefit unsatisfactory.Further, extraction for heat supply at present uses maximum heat-supplying modes, but it exists the low and larger phenomenon of cold source energy of utilization ratio of drawing gas.In addition, although little unit low vacuum back pressure heat supply process cold source energy is zero, but because little unit operation parameter is lower, generation load and the boiler ratio that recepts the caloric is less, limit generation load, economic benefit is still undesirable, simultaneously because little unit heat capacity is limited, cannot meet extensive heat demand.For this reason, need to research and develop that a kind of cold source energy is minimum, generation load and the boiler ratio heat supply mode that is higher, that simultaneously meet extensive heat demand that recepts the caloric is the task of top priority.Prove according to theory and practice, the back pressure heat supply of large-sized unit high parameter, can achieve the above object.Although there is more technical barrier, by discuss and study, creationary " the two back pressure birotor of low pressure (LP) cylinder exchanges " the i.e. imagination of " pure condensate-back pressure double-mode " heat supply process that proposes.
At present; cogeneration of heat and power cutting edge technology is up to object to realize cold source energy for " zero " and generation load and the boiler ratio of caloric receptivity; roughly there are following five kinds of modes: the preposition thermal power plant unit of (1) generator: the preposition thermal power plant unit of generator is the novel cogeneration of heat and power heat supply type introduced at present; heating period can realize cold source energy for " zero "; heat supply and non-confession hot season carry out switching not to be needed to shut down; remarkable in economical benefits, security reliability is high.But because of site layout project restriction, be not suitable for the transformation of existing unit, simultaneously heating period reduces to some extent because of steam turbine low-pressure part generation load out of service.(2) low pressure rotor optical axis intermediate pressure cylinder direct-furnish technology: low pressure rotor optical axis intermediate pressure cylinder direct-furnish technology, namely heating period low pressure rotor is replaced by optical axis, and intermediate pressure cylinder steam discharge, all for heat supply, can realize cold source energy like this for " zero ", the expense of investment for trnasforming urban land is simultaneously low, and energy-saving effect is remarkable.But because intermediate pressure cylinder steam discharge parameter is higher, generation load is limited more, and annual needs shut down the replacing carrying out rotor.(3) end removing grade blade heat supply process: final stage defoliation chip technology removes last one-level or two grade blades at heating period, raising back pressure of condenser, achieves high back pressure heat supply and cold source energy is " zero ", and energy-saving effect is remarkable.But annual needs shuts down replacing blade and carries out dynamic balance running, and maintenance duration is longer, and recondition expense is relatively high.(4) low pressure rotor transformation heat supply: low pressure (LP) cylinder high back pressure renovation technique is exactly the transformation realizing carrying out unit by changing static cascade, moving blades, blade tip seal, exhaust stage blade and change low pressure flow passage progression, makes unit operation back pressure higher than pure condensate operating mode back pressure.Low pressure rotor transformation heating period cold source energy is " zero ", and improvement expenses is lower, and energy-saving effect is remarkable, and heat supply phase and non-heat supply phase switch without the need to shutting down.But be only disposable transformation that the passage component such as low pressure rotor and dividing plate is carried out to improve unit back pressuce, cause the non-heat supply phase less economical, particularly summer, generation load impact was larger.(5) heat pump great temperature difference heat supply technology: heat pump great temperature difference heat supply technology heating period, heat pump is arranged in secondary heat exchange station in a large number, be that power realizes reducing heat supply network return water temperature by high-temperature water, cold source energy can be realized for " zero ", area of heat-supply service can be expanded when not carrying out heat supply extending capacity reformation, security reliability is high, and energy-saving effect is remarkable.But exist one-time investment costly, take up room large, the problem such as later maintenance workload large, service life of equipment is relatively short.
By the comparison to above-mentioned various heat supply cutting edge technology, for large-scale area heat supply, the technology few in the urgent need to a kind of investment cost, generation load restriction is relatively little, energy-conservation and economic benefit large, Site Implementation strong adaptability, security reliability are high.
Application number is " 201110324036.1 ", application publication number is " CN102506451A ", name is called that the Chinese invention patent application of " co-generation unit and the method that comprise wind-powered electricity generation and gas Combined Cycle Unit " discloses a kind of dispatching method comprising the co-generation unit of wind-powered electricity generation and gas Combined Cycle Unit, comprises step: measure supply side data and user's side data; Calculate the generated output of the gas Combined circulation of gas Combined Cycle Unit after regulating and heat is exerted oneself, the heat of the heating boiler of gas Combined Cycle Unit is exerted oneself, user's not heat pump power consumption and heating load in the same time.Although the method can realize the scheduling controlling of power system to a certain extent, but because its heat and power supply for large-scale area, still there is the problem that investment cost is larger, energy-conservation and economic benefit is less and unit operation method of controlling operation thereof is loaded down with trivial details, thus there is the defect that Site Implementation adaptability is poor and security reliability is poor, be difficult to the needs meeting actual conditions.
Application number is " 200610128242.4 ", publication number is " CN101191682A ", name is called that the Chinese invention patent application of " a kind of heat pump set cool-heat combined supply synchronous operation device and method thereof " discloses a kind of heat pump set cool-heat combined supply synchronous operation method, several source pump are divided into two groups by it, the quantity of two groups is equal or not etc., and the evaporimeter of two groups of source pump, condenser and circulation line thereof fill import by cold and hot matchmaker and be full of hot and cold medium in advance; And when being greater than by the refrigerating capacity that differentiation is produced and being less than heating load, setting steps.Although the method can utilize the source pump of arranging in groups to carry out freezing and heat supply, realize heat pump set system refrigeration and heat supply function, but because there is complex operation step and the larger problem of implementation cost in the method, so it still exists the defect that investment cost is larger, energy-conservation and economic benefit is less, Site Implementation adaptability is poor and security reliability is poor, be difficult to the needs meeting actual conditions equally.
On the whole, existing relevant circulating water heating unit allocation technology, specific to the operation control operation method of current circulating water heating unit, they are many is only the scheduling controlling achieving power system to a certain extent, or achieve source pump to a certain extent and carry out freezing and heat supply, but there is complex operation step and the larger problem of implementation cost more in these methods of prior art, so it is larger to there is investment cost, energy-conservation and economic benefit is less, the defect that Site Implementation adaptability is poor and security reliability is poor, be difficult to the needs meeting actual conditions.
Summary of the invention
The object of the invention is to, a kind of operation control operation method of circulating water heating unit is provided, it passes through the operation control to realizing large area, large discharge high back pressure circulating water heating unit, solve the problem that complex operation step existing for correlation technique and implementation cost in prior art are larger, and the defect that investment cost existing for it is larger, energy-conservation and economic benefit is less, Site Implementation adaptability is poor and security reliability is poor, thus meet the needs of actual conditions.
For achieving the above object, a kind of operation control operation method providing circulating water heating unit of the present invention, comprises the following steps: the change of monitored parameter and the control of unit.
Preferably, the step of the change of described monitored parameter comprises: at high back pressure under thermal condition, monitors that the parameter of turbine low pressure cylinder part is relative to the change under pure condensate operating mode.
In above either a program preferably, in the step of the change of described monitored parameter, monitor the change that high back pressure occurs for the vacuum parameter of condenser under thermal condition and pure condensate operating mode.
In above either a program preferably, in the step of the change of monitored parameter, at high back pressure under thermal condition and pure condensate operating mode, make the vacuum Parameters variation of condenser, and the warning of described condenser vacuum and unit tripping value are become "-46.3kPa ,-41.3kPa " from "-86.6kPa ,-79.6kPa " under pure condensate operating mode respectively.
In above either a program preferably, in the step of the change of described operation monitoring parameter, make high back pressure for the vacuum Parameters variation of condenser under thermal condition and pure condensate operating mode, recirculated water return water temperature is monitored, when finding temperature anomaly, carry out the preparation regulating vacuum.
In above either a program preferably, in the step of the change of operation monitoring parameter, the linkage action value of condenser vacuum and bypass is changed.
More preferably, in the step of the change of operation monitoring parameter, the linkage action value of condenser vacuum and bypass is changed, when pure condensate operating mode condenser vacuum is inferior to-65KPa, I grade of bypass, II grade of bypass are stopped using automatically, and pure condensate operating mode condenser vacuum is better than-70KPa, I grade of bypass, II grade of bypass can be opened; When high back pressure is inferior to-27kPa for thermal condition, bypass is opened in locking, and when high back pressure is better than-32kPa for thermal condition, allows bypass to open.
In above either a program preferably, in the step of the change of operation monitoring parameter, low pressure cylinder spray magnetic valve working value is changed.
More preferably, under pure condensate operating mode, during low pressure (LP) cylinder exhaust temperature >=80 DEG C, cylinder water spray magnetic valve after opening; High back pressure, under thermal condition, during low pressure (LP) cylinder exhaust temperature >=90 DEG C, opens rear cylinder water spray magnetic valve.
In above either a program preferably, the rate-determining steps of described unit comprises: to the control of heating network parameter.
More preferably, in the described control to heating network parameter, when circulation water for heating temperature parameter raises extremely, adjustment unit load.
More preferably, in the described control to heating network parameter, according to ambient temperature situations every day, draw temperature Change curve, the method adopting Boiler Steam parameter and unit load to combine adjusts circulating water temperature.
More preferably, in the control to heating network parameter, heating network quantity of circulating water is capacity 2.6 ten thousand tons, and recirculated water completes circulation needs 4 hours.
In above either a program preferably, the rate-determining steps of unit also comprises: to the control of steam-operating water circulating pump.
More preferably, in the rate-determining steps of described unit, by avoiding the little back pressure machine generation trip event driving steam-operating water circulating pump to the control of steam-operating water circulating pump.
More preferably, in the described control to steam-operating water circulating pump, the medium and small back pressure machine steam inlet condition of stable adjustment.
More preferably, in the described control to steam-operating water circulating pump, during the medium and small back pressure machine steam inlet condition of stable adjustment, keep that steam inlet condition is only high to transfinite, in order to avoid pump group hypervelocity.
More preferably, in the described control to steam-operating water circulating pump, during the medium and small back pressure machine steam inlet condition of stable adjustment, steam inlet condition is kept to stablize, by avoiding it to fluctuate on a large scale, prevent from causing rocking of pneumatic pump group rotating speed to cause circulation pressure and flow significantly to change and water hammer.
In above either a program preferably, the rate-determining steps of above-mentioned unit also comprises: to the control of low pressure differential expansion.
More preferably, in the rate-determining steps of above-mentioned unit, by controlling its ANOMALOUS VARIATIONS to the control of low pressure differential expansion.
More preferably, in the described control to low pressure differential expansion, by controlling low pressure shaft seal steam inlet condition, make, under the prerequisite meeting equipment operation needs, to adopt low value parameter.
More preferably, in the above-mentioned control to low pressure differential expansion, ensureing under the prerequisite that device security needs, adjustment steam turbine steam inlet condition is the lower limit with institute's on-load match parameter.
In above either a program preferably, the rate-determining steps of unit also comprises: the control of centering pressure vapour parameter.
More preferably, in the rate-determining steps of above-mentioned unit, avoid departing from of middle pressure vapour parameter by the control of centering pressure vapour parameter.
More preferably, in the control of above-mentioned centering pressure vapour parameter, aperture, the flow that accurate adjustment draws gas and the pressure of drawn gas by adjustment quck-opening valve and fast valve.
Compared with prior art, the present invention has the following advantages:
The invention provides a kind of operation control operation method of circulating water heating unit, it is by adopting step: the change of operation monitoring parameter and the control of unit, can realize the operation control of large area, large discharge high back pressure circulating water heating unit, solve because operating vacuum is lower, vacuum system partial parameters is higher, and vacuum change by a small margin all will produce considerable influence to unit operation, needs to strengthen monitoring to recirculated water return water temperature, find temperature anomaly, carry out the problem of the preparation regulating vacuum early, usual heating network quantity of circulating water is about 2.6 ten thousand tons of capacity, pipe network is huge, recirculated water completes a circulation approximately needs 4 hours, therefore when abnormal rising occurs the parameters such as heating cycle coolant-temperature gage, the necessary Load adjustment in time of unit, otherwise can because the very easily deterioration of vacuum, thus non-ly stopping or the damage of miscellaneous equipment of causing unit, until after 4 hours, circulating water temperature has during downward trend could be needed to continue Load adjustment according to heat supply, this operating effect reaction relatively lags behind, great hidden danger is brought to unit operation, and adopt operation control operation method of the present invention, Changing Pattern is groped by analyzing, according to ambient temperature situations every day, draw temperature Change curve, the method adopting Boiler Steam parameter and unit load to combine early carries out the adjustment of circulating water temperature, avoid the passive adjustment of unit load, to the important function that the maintenance of unit vacuum and the stable operation of heating network parameter serve, in addition, coming into operation of steam-operating water circulating pump, greatly reduce station service, and its exhaust steam is still used as the heating of recirculated water, device systems economy is higher, but drive the little back pressure machine of steam-operating water circulating pump that if trip event occurs, directly will have influence on the safe and stable operation of whole High Back Pressure Steam Turbine Units, so the stable adjustment running medium and small back pressure machine steam inlet condition is comparatively crucial, following 2 points are accomplished: one is avoid parameter too high by adjustment admission pitch, steam inlet condition is kept not transfinite, in order to avoid pump group hypervelocity, two is the large-scale fluctuations avoiding parameter, prevents from causing rocking of pneumatic pump group rotating speed to cause circulation pressure and flow significantly to change and water hammer, simultaneously, when unit high back pressure runs, low pressure differential expansion changes greatly, bring very large potential safety hazard to unit operation, technical staff is repeatedly development test under the cooperation of operations staff, finally seeks the method that have found and effectively control differential expansion change, namely operation control operation method of the present invention is adopted, one is control low pressure shaft seal steam inlet condition, under the prerequisite meeting equipment operation needs, adopts low parameter as far as possible, two is ensureing under the prerequisite that device security needs, and adjustment steam turbine steam inlet condition is the lower limit with institute's on-load match parameter.By above means, effectively control the ANOMALOUS VARIATIONS of low pressure differential expansion; Finally, when the unit amount of drawing gas strengthens, intermediate pressure cylinder steam discharge state modulator difficulty strengthens, and pressure must not be too low or temperature is too high, otherwise easily cause the overload of intermediate pressure cylinder exhaust stage blade, affect safety, technical staff, through long-term innovation research, by adopting operation control operation method of the present invention, adjusts the aperture of draw gas quck-opening valve, fast valve, grasping can the technical ability of the flow that draws gas of accurate adjustment and pressure, avoids departing from of middle pressure vapour parameter.
On the whole, the operation control operation method of circulating water heating unit of the present invention, it passes through the operation control to realizing large area, large discharge high back pressure circulating water heating unit, solve the problem that complex operation step existing for correlation technique and implementation cost in prior art are larger, and the defect that investment cost existing for it is larger, energy-conservation and economic benefit is less, Site Implementation adaptability is poor and security reliability is poor, thus meet the needs of actual conditions.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the invention will be further described:
Fig. 1 is the operation control operation method of circulating water heating unit of the present invention, in the rate-determining steps of unit, in the control to heating network parameter, and the environmentally temperature Change curve map drawn of temperature.
Fig. 2 is the operation control operation method of circulating water heating unit of the present invention, in the rate-determining steps of unit, in the control to heating network parameter, and the environmentally temperature Change curve map drawn of temperature.
Detailed description of the invention
In order to understand the present invention better, below in conjunction with specific embodiment, the present invention is explained in detail.But, obviously can carry out different modification and remodeling to the present invention and not exceed the wider spirit and scope of the present invention of appended claims.Therefore, following examples have exemplary and hard-core implication.
Embodiment:
As depicted in figs. 1 and 2, realize large area, a kind of operation control operation method of circulating water heating unit that the operation of large discharge high back pressure circulating water heating unit controls, comprise the following steps:
One, the change of operation monitoring parameter
High back pressure is for thermal condition, and turbine low pressure cylinder part operation monitoring parameter comparatively pure condensate operating mode there occurs change:
(1) when heat supply and pure condensate operating mode, condenser vacuum is different, condenser vacuum is reported to the police and unit tripping value is become "-46.3kPa ,-41.3kPa " from "-the 86.6kPa ,-79.6kPa " of pure condensate operating mode respectively, because operating vacuum is lower, vacuum system partial parameters is higher, vacuum change by a small margin all will produce considerable influence to unit operation, need to strengthen monitoring to recirculated water return water temperature, find temperature anomaly, carry out the preparation regulating vacuum early.
(2) the linkage action value of condenser vacuum and bypass also there occurs change: when pure condensate operating mode condenser vacuum is inferior to-65KPa, and I grade of bypass, II grade of bypass are stopped using automatically; When being better than-70KPa, I, II grade of bypass can be opened.And high back pressure operating mode when being inferior to-27kPa locking open bypass, be better than-32kPa and allow bypass to open.
(3) low pressure cylinder spray magnetic valve working value situation of change: during pure condensate operating mode, during low pressure (LP) cylinder exhaust temperature >=80 DEG C, drives rear cylinder water spray magnetic valve; When high back pressure is for thermal condition, during low pressure (LP) cylinder exhaust temperature >=90 DEG C, drive rear cylinder water spray magnetic valve.
Two, the control of unit
(1) control of heating network parameter.
Heating network quantity of circulating water is about 2.6 ten thousand tons of capacity, and pipe network is huge, and recirculated water completes a circulation approximately needs 4 hours.Therefore when abnormal rising occurs the parameters such as heating cycle coolant-temperature gage; the necessary Load adjustment in time of unit; otherwise can because the very easily deterioration of vacuum; thus non-ly stopping or the damage of miscellaneous equipment of causing unit; until after 4 hours, circulating water temperature has during downward trend could be needed to continue Load adjustment according to heat supply.This operating effect reaction relatively lags behind, and brings great hidden danger to unit operation.
Technical staff gropes Changing Pattern by analysis, according to ambient temperature situations every day (as depicted in figs. 1 and 2), draw temperature Change curve, the method adopting Boiler Steam parameter and unit load to combine early carries out the adjustment of circulating water temperature, avoid the passive adjustment of #5 unit load, to the important function that the maintenance of unit vacuum and the stable operation of heating network parameter serve.
(2) control of steam-operating water circulating pump
Coming into operation of steam-operating water circulating pump, greatly reduces station service, and its exhaust steam is still used as the heating of recirculated water, and device systems economy is higher.But drive the little back pressure machine of steam-operating water circulating pump that if trip event occurs, directly will have influence on the safe and stable operation of whole High Back Pressure Steam Turbine Units.So the stable adjustment running medium and small back pressure machine steam inlet condition is comparatively crucial, accomplishes following 2 points by adjustment admission pitch: one is avoid parameter too high, keep steam inlet condition not transfinite, in order to avoid pump group hypervelocity; Two is the large-scale fluctuations avoiding parameter, prevents from causing rocking of pneumatic pump group rotating speed to cause circulation pressure and flow significantly to change and water hammer.
(3) control of low pressure differential expansion
When unit high back pressure runs, low pressure differential expansion changes greatly, and brings very large potential safety hazard to unit operation.Technical staff is test of many times under the cooperation of operations staff, finally seeks the method that have found and effectively control differential expansion change: one is control low pressure shaft seal steam inlet condition, under the prerequisite meeting equipment operation needs, adopts low parameter as far as possible; Two is ensureing under the prerequisite that device security needs, and adjustment steam turbine steam inlet condition is the lower limit with institute's on-load match parameter.By above means, effectively control the ANOMALOUS VARIATIONS of low pressure differential expansion.
(4) control of pressure vapour parameter in
When the unit amount of drawing gas strengthens, intermediate pressure cylinder steam discharge state modulator difficulty strengthens, and pressure must not be too low or temperature is too high, otherwise easily cause the overload of intermediate pressure cylinder exhaust stage blade, affects safety.Technical staff gropes through too much sky, to be drawn gas the aperture of quck-opening valve, fast valve by adjustment, and grasping can the technical ability of the flow that draws gas of accurate adjustment and pressure, avoids departing from of middle pressure vapour parameter.
From heat supply theoretical side, the heat supply of recirculated water back pressure is heat-supplying mode most effective in various heating form, also be cold source energy be that in the heat-supplying mode of zero, generated output limits minimum mode, and adopt the operation control operation method of circulating water heating unit of the present invention, its electric heating proportion reaches 34.5%(generated energy/boiler caloric receptivity), cold source energy is that the electric heating proportion of the thermal power plant unit of zero is generally within 30%, achieves the new breakthrough of thermal power plant unit electric heating ratio.
Meanwhile, in environmental protection, sulfur dioxide (SO2) emissions 1877.41 tons can be reduced for the hot season, minimizing per hour 0.71 ton; Reduce discharged nitrous oxides 593.313 tons, minimizing per hour 0.225 ton; Reducing emission of carbon dioxide about 21.95 ten thousand tons, minimizing per hour 83 tons, environmental benefit is considerable.
The heat supply transformation aspect of the method medium-sized unit at home obtains new technological break-through, sets up the mark post of national similar unit coal consumption, for heat supply transformation opens new way.Eliminate the drawback that the disposable transformation of low pressure (LP) cylinder realizes existing for Heat Supplying with Low Vacuum, thoroughly solve " heat supply running operating mode unit operation economy is splendid; and pure condensate operating mode economy extreme difference " contradiction of polarization, achieve annual comprehensive benefit to maximize, have broad application prospects and high promotional value.
Claims (19)
1. a progress control method for circulating water heating unit, comprises the following steps: the change of monitored parameter and the control of unit; The step of the change of described monitored parameter comprises: monitor the parameter of turbine low pressure cylinder part at high back pressure for the change occurred compared with under pure condensate operating mode under thermal condition; In the step of the change of described monitored parameter, monitor the change that the vacuum parameter of condenser occurs for thermal condition at high back pressure compared with under pure condensate operating mode; The warning of described condenser vacuum and unit tripping value are changed to "-46.3kPa ,-41.3kPa " by "-86.6kPa ,-79.6kPa " under pure condensate operating mode respectively; In the step of the change of described monitored parameter, make high back pressure for the vacuum Parameters variation of condenser under thermal condition and pure condensate operating mode, recirculated water return water temperature is monitored, when finding temperature anomaly, carry out the preparation regulating vacuum, avoid the passive adjustment of unit load.
2. the operation control operation method of circulating water heating unit as claimed in claim 1, is characterized in that: in the step of the change of monitored parameter, the linkage action value of condenser vacuum and bypass is changed.
3. the operation control operation method of circulating water heating unit as claimed in claim 1, is characterized in that: in the step of the change of monitored parameter, low pressure cylinder spray magnetic valve working value is changed.
4. the operation control operation method of the circulating water heating unit according to any one of claim 1-3, is characterized in that: the rate-determining steps of described unit comprises the control to heating network parameter.
5. the operation control operation method of circulating water heating unit as claimed in claim 4, is characterized in that: in the described control to heating network parameter, when circulation water for heating temperature parameter raises extremely, and adjustment unit load.
6. the operation control operation method of circulating water heating unit as claimed in claim 5, it is characterized in that: in the described control to heating network parameter, according to ambient temperature situations every day, draw temperature Change curve, the method adopting Boiler Steam parameter and unit load to combine adjusts circulating water temperature.
7. the operation control operation method of circulating water heating unit as claimed in claim 6, it is characterized in that: in the control to heating network parameter, heating network quantity of circulating water is capacity 2.6 ten thousand tons, and recirculated water completes circulation needs 4 hours.
8. the operation control operation method of circulating water heating unit as claimed in claim 4, is characterized in that: the rate-determining steps of unit also comprises: to the control of steam-operating water circulating pump.
9. the operation control operation method of circulating water heating unit as claimed in claim 8, is characterized in that: in the rate-determining steps of described unit, by avoiding the little back pressure machine generation trip event driving steam-operating water circulating pump to the control of steam-operating water circulating pump.
10. the operation control operation method of circulating water heating unit as claimed in claim 9, is characterized in that: in the described control to steam-operating water circulating pump, the medium and small back pressure machine steam inlet condition of stable adjustment.
The operation control operation method of 11. circulating water heating units as claimed in claim 10, it is characterized in that: in the described control to steam-operating water circulating pump, during the medium and small back pressure machine steam inlet condition of stable adjustment, keep that steam inlet condition is only high to transfinite, in order to avoid pump group hypervelocity.
The operation control operation method of 12. circulating water heating units as claimed in claim 11, it is characterized in that: in the described control to steam-operating water circulating pump, during the medium and small back pressure machine steam inlet condition of stable adjustment, steam inlet condition is kept to stablize, by avoiding it to fluctuate on a large scale, prevent from causing rocking of pneumatic pump group rotating speed to cause circulation pressure and flow significantly to change and water hammer.
The operation control operation method of 13. circulating water heating units as claimed in claim 4, is characterized in that: the rate-determining steps of above-mentioned unit also comprises: to the control of low pressure differential expansion.
The operation control operation method of 14. circulating water heating units as claimed in claim 13, is characterized in that: in the rate-determining steps of above-mentioned unit, by controlling its ANOMALOUS VARIATIONS to the control of low pressure differential expansion.
The operation control operation method of 15. circulating water heating units as claimed in claim 14, it is characterized in that: in the described control to low pressure differential expansion, by controlling low pressure shaft seal steam inlet condition, make, under the prerequisite meeting equipment operation needs, to adopt low value parameter.
The operation control operation method of 16. circulating water heating units as claimed in claim 15, it is characterized in that: in the above-mentioned control to low pressure differential expansion, ensureing under the prerequisite that device security needs, adjustment steam turbine steam inlet condition is the lower limit with institute's on-load match parameter.
The operation control operation method of 17. circulating water heating units as claimed in claim 4, is characterized in that: the rate-determining steps of unit also comprises: the control of centering pressure vapour parameter.
The operation control operation method of 18. circulating water heating units as claimed in claim 17, is characterized in that: in the rate-determining steps of above-mentioned unit, avoids departing from of middle pressure vapour parameter by the control of centering pressure vapour parameter.
The operation control operation method of 19. circulating water heating units as claimed in claim 18, is characterized in that: in the control of above-mentioned centering pressure vapour parameter, aperture, the flow that accurate adjustment draws gas and the pressure of drawn gas by adjustment quck-opening valve and fast valve.
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| CN201310206097.7A CN103292383B (en) | 2013-05-24 | 2013-05-29 | A kind of operation control operation method of circulating water heating unit |
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| CN201310206097.7A CN103292383B (en) | 2013-05-24 | 2013-05-29 | A kind of operation control operation method of circulating water heating unit |
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| CN103292383B true CN103292383B (en) | 2016-03-23 |
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| CN201320301790.8U Expired - Fee Related CN203374322U (en) | 2013-05-24 | 2013-05-29 | Low-pressure separating board for steam turbine double-rotor exchanging circulating water heat supply |
| CN201310206097.7A Expired - Fee Related CN103292383B (en) | 2013-05-24 | 2013-05-29 | A kind of operation control operation method of circulating water heating unit |
| CN201320301786.1U Expired - Fee Related CN203374325U (en) | 2013-05-24 | 2013-05-29 | Connecting structure between condenser throat portion and steam turbine exhaust port |
| CN201320301505.2U Expired - Fee Related CN203374320U (en) | 2013-05-24 | 2013-05-29 | Low-pressure rotor for steam turbine double-rotor exchanging circulating water heat supply |
| CN201320301788.0U Expired - Fee Related CN203374321U (en) | 2013-05-24 | 2013-05-29 | Moving blade of low-pressure rotor |
| CN201320301712.8U Expired - Fee Related CN203374326U (en) | 2013-05-24 | 2013-05-29 | Optimized rear cylinder water spray system |
| CN201320301484.4U Expired - Fee Related CN203374323U (en) | 2013-05-24 | 2013-05-29 | Low-pressure front-back shaft sealing parts |
| CN201310206163.0A Expired - Fee Related CN103291391B (en) | 2013-05-24 | 2013-05-29 | A kind of steam turbine power generation heating system with double-mode |
| CN201310206093.9A Expired - Fee Related CN103306758B (en) | 2013-05-24 | 2013-05-29 | A kind of control method of monitored parameter under high back pressure supplies thermal condition |
| CN201320301482.5U Expired - Fee Related CN203374324U (en) | 2013-05-24 | 2013-05-29 | Low-pressure circulating component |
| CN201310208872.2A Expired - Fee Related CN103382860B (en) | 2013-05-24 | 2013-05-30 | Steam turbine power generation heating system controlling method |
| CN201310208998.XA Expired - Fee Related CN103306753B (en) | 2013-05-24 | 2013-05-30 | A kind of steam turbine set cooling water system and chilled(cooling) water supply (CWS) method |
| CN201320355671.0U Expired - Fee Related CN203374328U (en) | 2013-05-24 | 2013-06-21 | Clapboard combination structure for steam turbine |
| CN201320355675.9U Expired - Fee Related CN203374329U (en) | 2013-05-24 | 2013-06-21 | Low pressure through-flow structure |
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| CN201320301790.8U Expired - Fee Related CN203374322U (en) | 2013-05-24 | 2013-05-29 | Low-pressure separating board for steam turbine double-rotor exchanging circulating water heat supply |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320301786.1U Expired - Fee Related CN203374325U (en) | 2013-05-24 | 2013-05-29 | Connecting structure between condenser throat portion and steam turbine exhaust port |
| CN201320301505.2U Expired - Fee Related CN203374320U (en) | 2013-05-24 | 2013-05-29 | Low-pressure rotor for steam turbine double-rotor exchanging circulating water heat supply |
| CN201320301788.0U Expired - Fee Related CN203374321U (en) | 2013-05-24 | 2013-05-29 | Moving blade of low-pressure rotor |
| CN201320301712.8U Expired - Fee Related CN203374326U (en) | 2013-05-24 | 2013-05-29 | Optimized rear cylinder water spray system |
| CN201320301484.4U Expired - Fee Related CN203374323U (en) | 2013-05-24 | 2013-05-29 | Low-pressure front-back shaft sealing parts |
| CN201310206163.0A Expired - Fee Related CN103291391B (en) | 2013-05-24 | 2013-05-29 | A kind of steam turbine power generation heating system with double-mode |
| CN201310206093.9A Expired - Fee Related CN103306758B (en) | 2013-05-24 | 2013-05-29 | A kind of control method of monitored parameter under high back pressure supplies thermal condition |
| CN201320301482.5U Expired - Fee Related CN203374324U (en) | 2013-05-24 | 2013-05-29 | Low-pressure circulating component |
| CN201310208872.2A Expired - Fee Related CN103382860B (en) | 2013-05-24 | 2013-05-30 | Steam turbine power generation heating system controlling method |
| CN201310208998.XA Expired - Fee Related CN103306753B (en) | 2013-05-24 | 2013-05-30 | A kind of steam turbine set cooling water system and chilled(cooling) water supply (CWS) method |
| CN201320355671.0U Expired - Fee Related CN203374328U (en) | 2013-05-24 | 2013-06-21 | Clapboard combination structure for steam turbine |
| CN201320355675.9U Expired - Fee Related CN203374329U (en) | 2013-05-24 | 2013-06-21 | Low pressure through-flow structure |
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Families Citing this family (51)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963075A (en) * | 2010-09-10 | 2011-02-02 | 山东泓奥电力科技有限公司 | Method for changing pure condensation into back pressure heat supply |
| WO2011105881A2 (en) * | 2010-02-24 | 2011-09-01 | Genadij Pavlovskij | Centralized heat and hot water supply system |
| CN102967464A (en) * | 2012-12-07 | 2013-03-13 | 山东电力集团公司电力科学研究院 | Method for evaluating performances of condensing steam turbine after high back pressure improvement |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3881548A (en) * | 1971-07-14 | 1975-05-06 | Westinghouse Electric Corp | Multi-temperature circulating water system for a steam turbine |
| JPS57124003A (en) * | 1981-01-27 | 1982-08-02 | Toshiba Corp | Geothermal turbine |
| US4870823A (en) * | 1988-11-30 | 1989-10-03 | Westinghouse Electric Corp. | Low load operation of steam turbines |
| RU2174610C2 (en) * | 1999-10-05 | 2001-10-10 | Ульяновский государственный технический университет | Thermal power station operating process |
| US6644030B2 (en) * | 2001-09-10 | 2003-11-11 | Usgen New England, Inc. | Cooling systems and methods of cooling |
| CN100494642C (en) * | 2004-08-31 | 2009-06-03 | 天津市电力科技发展公司 | Method and device for controlling heat electricity linked production of condensing steam turbine with three low cylinder and three-exhauster |
| JP2007064546A (en) * | 2005-08-31 | 2007-03-15 | Hitachi Eng Co Ltd | Waste heat recovery facility |
| CN101191682A (en) * | 2006-11-20 | 2008-06-04 | 尤相武 | Heat pump set cool-heat combined supply synchronous operation devices and methods therefor |
| DE102007023336A1 (en) * | 2007-05-16 | 2008-11-20 | Rwe Power Ag | Method for operating a steam turbine power plant and device for generating steam |
| US7748210B2 (en) * | 2008-07-31 | 2010-07-06 | General Electric Company | System and method for use in a combined or rankine cycle power plant |
| CN101672203B (en) * | 2009-10-15 | 2012-05-30 | 华北电力大学 | Adjusting method for heating steam of cogeneration system |
| CN201747416U (en) * | 2010-06-29 | 2011-02-16 | 中国长江动力公司(集团) | Steam turbine changed from condensing steam type into back pressure type |
| CN201917234U (en) * | 2010-12-31 | 2011-08-03 | 东莞理文造纸厂有限公司 | Circulating water pump system additionally provided with frequency converters |
| CN102331023B (en) * | 2011-07-20 | 2013-05-01 | 双良节能系统股份有限公司 | Recycled water parallel heat supply system for recycling condensation waste heat of auxiliary machine in thermal power plant |
| CN102506451B (en) * | 2011-10-23 | 2014-02-19 | 国网重庆市电力公司 | Heat and power cogeneration system comprising wind power and fuel gas combined-cycle unit , and heat and power cogeneration method |
| CN102900478B (en) * | 2012-09-29 | 2014-10-29 | 华北电力大学 | Novel heat supply steam turbine system and regulation method thereof |
-
2013
- 2013-05-29 CN CN201320301790.8U patent/CN203374322U/en not_active Expired - Fee Related
- 2013-05-29 CN CN201310206097.7A patent/CN103292383B/en not_active Expired - Fee Related
- 2013-05-29 CN CN201320301786.1U patent/CN203374325U/en not_active Expired - Fee Related
- 2013-05-29 CN CN201320301505.2U patent/CN203374320U/en not_active Expired - Fee Related
- 2013-05-29 CN CN201320301788.0U patent/CN203374321U/en not_active Expired - Fee Related
- 2013-05-29 CN CN201320301712.8U patent/CN203374326U/en not_active Expired - Fee Related
- 2013-05-29 CN CN201320301484.4U patent/CN203374323U/en not_active Expired - Fee Related
- 2013-05-29 CN CN201310206163.0A patent/CN103291391B/en not_active Expired - Fee Related
- 2013-05-29 CN CN201310206093.9A patent/CN103306758B/en not_active Expired - Fee Related
- 2013-05-29 CN CN201320301482.5U patent/CN203374324U/en not_active Expired - Fee Related
- 2013-05-30 CN CN201310208872.2A patent/CN103382860B/en not_active Expired - Fee Related
- 2013-05-30 CN CN201310208998.XA patent/CN103306753B/en not_active Expired - Fee Related
- 2013-06-21 CN CN201320355671.0U patent/CN203374328U/en not_active Expired - Fee Related
- 2013-06-21 CN CN201320355675.9U patent/CN203374329U/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011105881A2 (en) * | 2010-02-24 | 2011-09-01 | Genadij Pavlovskij | Centralized heat and hot water supply system |
| CN101963075A (en) * | 2010-09-10 | 2011-02-02 | 山东泓奥电力科技有限公司 | Method for changing pure condensation into back pressure heat supply |
| CN102967464A (en) * | 2012-12-07 | 2013-03-13 | 山东电力集团公司电力科学研究院 | Method for evaluating performances of condensing steam turbine after high back pressure improvement |
Non-Patent Citations (1)
| Title |
|---|
| 莒南热电厂低真空循环水供热;孟祥丽等;《建筑热能通风空调》;中国建筑学会建筑热能动力分会;20111231;第1卷(第1期);41-43页 * |
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| CN103291391A (en) | 2013-09-11 |
| CN103306753A (en) | 2013-09-18 |
| CN203374320U (en) | 2014-01-01 |
| CN103382860B (en) | 2015-12-02 |
| CN203374325U (en) | 2014-01-01 |
| CN103292383A (en) | 2013-09-11 |
| CN203374328U (en) | 2014-01-01 |
| CN203374322U (en) | 2014-01-01 |
| CN203374329U (en) | 2014-01-01 |
| CN103306753B (en) | 2015-08-12 |
| CN203374321U (en) | 2014-01-01 |
| CN203374324U (en) | 2014-01-01 |
| CN103382860A (en) | 2013-11-06 |
| CN203374326U (en) | 2014-01-01 |
| CN103291391B (en) | 2016-08-10 |
| CN103306758A (en) | 2013-09-18 |
| CN203374323U (en) | 2014-01-01 |
| CN103306758B (en) | 2016-06-01 |
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