CN202915337U - Regenerative system and generator of power plant secondary reheating unit - Google Patents
Regenerative system and generator of power plant secondary reheating unit Download PDFInfo
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- CN202915337U CN202915337U CN 201220456772 CN201220456772U CN202915337U CN 202915337 U CN202915337 U CN 202915337U CN 201220456772 CN201220456772 CN 201220456772 CN 201220456772 U CN201220456772 U CN 201220456772U CN 202915337 U CN202915337 U CN 202915337U
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Abstract
The utility model provides a regenerative system and a generator of a power plant secondary reheating unit. The system comprises a condenser, a condensing water pump, a low-pressure heater, a high-pressure feed pump and a high-pressure heater, wherein both the low-pressure heater and the high-pressure heater are surface heaters. The system is provided with more than two mixing type heaters with different pressure, and one of the mixing type heaters has the deoxygenizing function. The system further comprises a middle-pressure heater and a middle-pressure feed pump, and the middle-pressure heater and the middle-pressure feed pump are arranged between any two mixing type heaters. By the aid of the system, the device cost is reduced and thermodynamic system efficiency is improved.
Description
Technical field
The utility model relates to generating equipment, is specifically related to the heat regenerative system of double reheat unit in the generating equipment.
Background technology
In the prior art, in the typical heat regenerative system of double reheat unit, steam turbine generally has 9～11 grades to draw gas, offer respectively 9～11 heaters, wherein only has a contact(-type) heater, this contact(-type) heater has the deoxygenation function simultaneously, so this heater is commonly referred to oxygen-eliminating device, and remaining heater is surface heater usually.Usually, the surface heater after the condensate pump is called as low-pressure heater, and the surface heater after the feed pump is called as high-pressure heater.The hydrophobic of surface-type high-pressure heater dredged to the lower next stage of pressure usually step by step.And surface-type low-pressure heater hydrophobic has following two kinds of forms usually: (I) step by step from streamed, similar with the draining system of high-pressure heater, the hydrophobic of low-pressure heaters at different levels flow automatically to lower pressure step by step by elevated pressures, and hydrophobic final access condenser is referring to Fig. 1; (II) the drainage pump form is set, because the water lateral pressure of low-pressure heater is lower, heater-drip pump is set so have ready conditions, i.e. the water side system of the hydrophobic access low-pressure heater that boosts by the low-pressure heater drainage pump of low-pressure heater, Fig. 2 sees in typical low-pressure heater drainage pump system.
Development along with technology, the parameter of double reheat unit raises gradually, some shortcomings of above-mentioned heat regenerative system of the prior art appear gradually, be mainly reflected in these points: (one), along with the main steam pressure of unit raises gradually, the feedwater pump lift also raises gradually in the system, thereby the design pressure of the high-pressure heater after the feed pump is also increased gradually.Take the ultra supercritical unit as example, the design pressure of high-pressure heater has reached 40～45MPa, has greatly increased the initial outlay of heater device; (2), because the feed pressure of prior art mesohigh heater water side is higher, make high-pressure heater inconvenience configuration with the hydrophobic drainage pump system that is transported in the feedwater of vapour side, but with the hydrophobic step by step gravity flow of the vapour side of high-pressure heater, being discharged at last oxygen-eliminating device, thermodynamic system efficiency is lower relatively.
The utility model content
The purpose of this utility model provides and a kind ofly can reduce equipment manufacturing cost, improves simultaneously the heat regenerative system of thermodynamic system efficiency.
For achieving the above object, the utility model provides the heat regenerative system of power plant double reheat unit, described heat regenerative system comprises condenser, condensate pump, low-pressure heater, high pressure water pump and high-pressure heater, described low-pressure heater and described high-pressure heater are surface heaters, it is characterized in that:
Described heat regenerative system is provided with two with the different contact(-type) heater of upward pressure, and one in the described contact(-type) heater has the deoxygenation function;
Described heat regenerative system also comprises middle pressure heater and middle pressure feed pump, and described middle pressure heater and middle pressure feed pump are arranged between any two contact(-type) heaters.
In the first preferred embodiment of the present utility model, described heat regenerative system is provided with two contact(-type) heaters that pressure is different, and one in described two contact(-type) heaters has the deoxygenation function; And the delivery port of the lower contact(-type) heater of pressure is connected with described middle pressure feed pump, and the delivery port of the contact(-type) heater that pressure is higher is connected with described high pressure water pump.
In the second preferred embodiment of the present utility model, described heat regenerative system is provided with the different contact(-type) heater of Three pressures, and one in described three contact(-type) heaters has the deoxygenation function; Described middle pressure heater is arranged between any two contact(-type) heaters; And be connected with described middle pressure feed pump along the delivery port of feedwater flow direction two contact(-type) heaters in front, and the delivery port of last contact(-type) heater is connected with described high pressure water pump.
In the utility model, condensate water in the described condenser is boosted by described condensate pump, through described low-pressure heater, enter the lower contact(-type) heater of pressure, the water outlet of the contact(-type) heater that described pressure is lower is boosted by described middle pressure feed pump, through described middle pressure heater, enter the higher contact(-type) heater of pressure, the water outlet of the contact(-type) heater that described pressure is higher is boosted by high pressure water pump, through described high-pressure heater, finally sends into boiler.
In the first preferred embodiment of the present utility model, preferably, described heat regenerative system comprises 3 described low-pressure heaters, 4 described middle pressure heaters and 1 described high-pressure heater.
In the first preferred embodiment of the present utility model, preferably, described heat regenerative system comprises 2 described low-pressure heaters, 4 described middle pressure heaters and 2 described high-pressure heaters.
In the first preferred embodiment of the present utility model, preferably, described heat regenerative system comprises 4 described low-pressure heaters, 2 described middle pressure heaters and 2 described high-pressure heaters.
In the first preferred embodiment of the present utility model, preferably, described heat regenerative system comprises 4 described low-pressure heaters, 1 described middle pressure heater and 3 described high-pressure heaters.
In the first preferred embodiment of the present utility model, preferably, described heat regenerative system comprises 3 described low-pressure heaters, 2 described middle pressure heaters and 3 described high-pressure heaters.
In the first preferred embodiment of the present utility model, preferably, described heat regenerative system comprises 2 described low-pressure heaters, 3 described middle pressure heaters and 3 described high-pressure heaters.
In the first preferred embodiment of the present utility model, preferably, described heat regenerative system comprises 3 described low-pressure heaters, 2 described middle pressure heaters and 2 described high-pressure heaters.
In the second preferred embodiment of the present utility model, preferably, described heat regenerative system comprises 2 described low-pressure heaters, 4 described middle pressure heaters and 2 described high-pressure heaters.
In the utility model, the hydrophobic employing step by step of described middle pressure heater and described low-pressure heater arranges the drainage pump form from streamed or employing.
The utility model also provides a kind of generating equipment, and described generating equipment comprises the double reheat unit, and wherein, the heat regenerative system of described double reheat unit is above-mentioned heat regenerative system.
The utility model compared with prior art, has following three advantages owing to being provided with two-stage or multi-stage hybrid heater more:
(1) the utility model is owing to being provided with two-stage or multi-stage hybrid heater more, and high-pressure heater of the prior art is divided into high-pressure heater and middle pressure heater, has effectively reduced the design pressure of part high-pressure heater, thereby can reduce construction costs.
(2) the utility model compared with prior art, therefore the quantity of high-pressure heater still less has more heater to have ready conditions and the drainage pump system is set, can improves the cycle efficieny of system.
(3) contact(-type) heater quantity of the present utility model is more than prior art, and the efficient specific surface formula heater of contact(-type) heater is high, so system effectiveness will be higher also.
Description of drawings
Fig. 1 illustrates the typical heat regenerative system of double reheat unit in the prior art;
Fig. 2 illustrates the another kind of typical heat regenerative system of double reheat unit in the prior art;
Fig. 3 is the flow chart of the first embodiment of the heat regenerative system of double reheat unit of the present utility model;
Fig. 4 is the flow chart of the second embodiment of the heat regenerative system of double reheat unit of the present utility model;
Fig. 5 is the flow chart of the 3rd embodiment of the heat regenerative system of double reheat unit of the present utility model; And
Fig. 6-the 10th, the flow chart of a plurality of variant embodiment of the heat regenerative system of double reheat unit of the present utility model.
The specific embodiment
Below with reference to accompanying drawing preferred embodiment of the present utility model is elaborated, in order to clearlyer understand the purpose of this utility model, characteristics and advantage.It should be understood that embodiment shown in the drawings is not the restriction to the utility model scope, and just for the connotation of technical solutions of the utility model is described.
Below, major technique term of the present utility model is described.
The double reheat unit: from boiler superheater main steam out after the steam turbine high-pressure cylinder work done, send in the single reheat device of boiler heating back to improve temperature, then send into steam turbine the first intermediate pressure cylinder and continue expansion working, sending in the secondary reheater of boiler heating back to then sends into steam turbine the second intermediate pressure cylinder and continues expansion working to improve temperature again.
Heat regenerative system: utilize and in steam turbine, done drawing gas of merit, come heat-setting water and feedwater by heater with the heat release of drawing gas, enter the heating system of boiler feed temperature with raising.The heat regenerative system of double reheat unit is the part of power plant Turbo-generator Set circulation system.
Surface heater: heating steam and heated water two media are separated by the metal wall, and in heat transfer process, two media does not contact mutually, and heat passes to cold medium by thermal medium by the metal wall.Unless otherwise indicated, all low-pressure heaters as herein described, middle pressure heater and high-pressure heater are surface heater.
Contact(-type) heater: heating steam is to rely on both directly to contact also mutually mixing to realize with the exchange heat of heated water two media, and hot and cold two media is accompanied by the mixing of quality when heat transmits.
Below with reference to accompanying drawing preferred embodiment of the present utility model is described in detail.
Fig. 1 illustrates the typical heat regenerative system of double reheat unit in the prior art.As shown in Figure 1, steam turbine has 10 grades and draws gas in this system, offers 10 heaters, is respectively 4 high-pressure heaters 10, oxygen-eliminating device 8 and 5 low-pressure heaters 3.Wherein, oxygen-eliminating device 8 is contact(-type) heaters, and all the other are surface heater.Condensate water in the condenser 1 is boosted by condensate pump 2, behind 5 grades of surface-type low-pressure heaters, enters oxygen-eliminating device 8, and the feedwater after the deoxygenation is boosted through feed pump 9, through 4 grades of surface-type high-pressure heaters, finally sends into the boiler (not shown).
As shown in Figure 1, in the existing heat regenerative system, the hydrophobic of each high-pressure heater passes through step by step gravity flow and lower another grade high-pressure heater of cut-in pressure, and access contact(-type) heater 8(is oxygen-eliminating device 8 by flowing automatically finally) in, shown in the dotted line of each high-pressure heater below.In like manner, each low-pressure heater is hydrophobic also by flowing automatically and lower another grade low-pressure heater of cut-in pressure step by step.
Because feed pressure is lower in the low-pressure heater, therefore in the existing heat regenerative system, the drainage pump system is set between low-pressure heater usually, to improve the cycle efficieny of system.Fig. 2 illustrates a kind of typical drainage pump system that is arranged between the low-pressure heater.As shown in Figure 2, in this drainage pump system, wherein the one-level low-pressure heater is hydrophobic for the drainage pump form is set, and namely this grade low-pressure heater is hydrophobic by booster 14(drainage pump 14) boost and be discharged into the condensing water conduit of this grade low-pressure heater and another grade low-pressure heater.The hydrophobic of all the other low-pressure heaters then flow to the next stage low-pressure heater by gravity flow, last hydrophobicly flow to condenser 1 by gravity flow.
In the above-mentioned existing heat regenerative system, the design pressure of the high-pressure heater after the feed pump is higher, and therefore corresponding cost is higher.And, because the feed pressure of high-pressure heater water side is higher, make high-pressure heater inconvenience configuration with the hydrophobic drainage pump system that is transported in the feedwater of vapour side, be unfavorable for improving the cycle efficieny of system.
Problem for heat regenerative system in the above-mentioned prior art, the utility model is based on the thermodynamic cycle basic principle, the different contact(-type) heater of two or more pressure is set in double reheat unit heat regenerative system, corresponding to the lower contact(-type) heater of pressure middle pressure feed pump is set, the contact(-type) heater higher corresponding to pressure arranges high pressure water pump.Thereby, can with the pressure decreased of part high-pressure heater, significantly reduce the cost of the feed piping (comprising pipeline, valve, pipe fitting etc.) of heater and heater front and back on the one hand.For can configuring drainage pump, more heater creates conditions on the other hand.And by adopting contact(-type) heater, cold and hot fluid directly contact is conducted heat, and this heat transfer type has been avoided between heat transfer wall and the dirtiness resistance of both sides, and heat transfer efficiency is high, and the simple structure small investment.
Fig. 3 is the flow chart of the first embodiment of double reheat unit heat regenerative system of the present utility model.As shown in Figure 3, the condensate water in the condenser 1 is boosted by condensate pump 2, behind 3 grades of surface-type low-pressure heaters 3, enters first contact(-type) heater 15.Press feed pump 16 to boost (delivery port of contact(-type) heater 15 is connected with middle pressure feed pump 16) in the feedwater warp after first contact(-type) heater 15 heating, after pressing heater 17 in 4 grades, enter second contact(-type) heater 8(and can be used as oxygen-eliminating device 8).Feedwater after the deoxygenation is boosted (delivery port of contact(-type) heater 8 is connected with high pressure water pump 9) through high pressure water pump 9, through 1 grade of surface-type high-pressure heater 10, finally sends into the boiler (not shown).
By finding out among the figure, the present embodiment and prior art difference shown in Figure 1 are, a low-pressure heater (i.e. 2 grades of low-pressure heaters) and 3 grades of high-pressure heaters of prior art are replaced to pressure heater and one-level contact(-type) heater (being first contact(-type) heater 15) in the level Four, and correspondingly increased pressure feed pump 16 in.Therefore, compare prior art shown in Figure 1, high-pressure heater quantity reduces, and the corresponding minimizing of needed pressure piping system can significantly reduce equipment investment thus.For example, for the double reheat unit of 1 1000MW, can reduce equipment investment approximately 2,000 ten thousand.
And, there is more heater to have ready conditions the cycle efficieny that the drainage pump system improves heat regenerative system is set, namely, as shown in Figure 3, can in two-stage, press the heater place that drainage pump system 22 is set respectively, so that wherein press the hydrophobic by booster 22(drainage pump 22 of heater in the one-level) boost be discharged into press in this heater and and another grade in condensing water conduit between the pressure heater.
In addition, because efficiency of heating surface heat exchange efficiency compared to surface heater of contact(-type) heater is high, be conducive to improve the whole efficiency of system.For example, for the double reheat unit of 1 1000MW, can reduce approximately 0.2g/kW.h of gross coal consumption rate, coal-fired 1100 tons of year saving.
Fig. 4 illustrates the flow chart according to the second embodiment of double reheat unit heat regenerative system of the present utility model.In the present embodiment, 3 grades of low-pressure heaters of prior art and 2 grades of high-pressure heaters have been replaced to pressed heater and a contact(-type) heater (being first contact(-type) heater 15) in 4 grades, and correspondingly increased and press feed pump 16 in one.
Condensate water in the condenser 1 is boosted by condensate pump 2, behind 2 grades of surface-type low-pressure heaters, enters first contact(-type) heater 15.Feedwater after 15 heating of first contact(-type) heater through in press feed pump 16 to boost, after pressing heater in 4 grades, enter second contact(-type) heater 8(and can be used as oxygen-eliminating device 8).Feedwater after the deoxygenation is boosted through high pressure water pump 9, through 2 grades of surface-type high-pressure heaters, finally sends into the boiler (not shown).
Fig. 5 illustrates the flow chart according to the 3rd embodiment of double reheat unit heat regenerative system of the present utility model.In the present embodiment, 1 grade of low-pressure heater of prior art and 2 grades of high-pressure heaters have been replaced to pressed heater and a contact(-type) heater (being first contact(-type) heater 15) in 2 grades, and correspondingly increased and press feed pump 16 in one.
Condensate water in the condenser 1 is boosted by condensate pump 2, behind 4 grades of surface-type low-pressure heaters, enters first contact(-type) heater 15.Feedwater after 15 heating of first contact(-type) heater through in press feed pump 16 to boost, after pressing heater in 2 grades, enter second contact(-type) heater 8(and can be used as oxygen-eliminating device 8).Feedwater after the deoxygenation is boosted through high pressure water pump 9, through 2 grades of surface-type high-pressure heaters, finally sends into the boiler (not shown).
Fig. 6-8 illustrates other variant embodiment according to the heat regenerative system of double reheat unit of the present utility model.Shown in Fig. 6-8, heat regenerative system of the present utility model also is embodied as the middle pressure heater that other right quantities are set between contact(-type) heater 15 and contact(-type) heater 8, and correspondingly reduces the quantity of high-pressure heater and/or low-pressure heater.
Among the embodiment shown in Fig. 6-8, condensate water in the condenser is boosted by condensate pump, through the surface-type low-pressure heater, enter first lower contact(-type) heater of pressure, the water outlet of this contact(-type) heater is boosted by middle pressure feed pump, presses heater through in the surface-type, enter second high contact(-type) heater of first contact(-type) heater of pressure ratio, the water outlet of this second contact(-type) heater is boosted by high pressure water pump, through the surface-type high-pressure heater, finally sends into boiler.In two contact(-type) heaters, any one contact(-type) heater can have the deoxygenation function as the oxygen-eliminating device in the system.
And wherein hydrophobic the employing step by step of any one surface heater arranges the drainage pump form from streamed or employing.
In addition, any one had deoxygenation function of two contact(-type) heaters among each embodiment and as the oxygen-eliminating device in the system.
Fig. 9 illustrates another embodiment according to the heat regenerative system of double reheat unit of the present utility model.As shown in Figure 9, in the present embodiment, steam turbine has 9 grades and draws gas, and offers 9 heaters, is respectively 2 high-pressure heaters 10, contact(-type) heater 8(oxygen-eliminating device 8), press heater 17, contact(-type) heater 15,3 low-pressure heaters 3 in 2.Wherein, each high-pressure heater, middle pressure heater and low-pressure heater are surface heater.
Condensate water in the condenser 1 is boosted by condensate pump 2, behind 3 grades of surface-type low-pressure heaters, enters first contact(-type) heater 15.Feedwater after 15 heating of first contact(-type) heater through in press feed pump 16 to boost, after pressing heater in 2 grades, enter second contact(-type) heater 8(and can be used as oxygen-eliminating device 8).Feedwater after the deoxygenation is boosted through high pressure water pump 9, through 2 grades of surface-type high-pressure heaters, finally sends into the boiler (not shown).
Figure 10 illustrates the another embodiment according to the heat regenerative system of double reheat unit of the present utility model.As shown in figure 10, in the present embodiment, be provided with altogether 3 contact(-type) heaters.Steam turbine has 11 grades and draws gas, and offers 11 heaters, is respectively 2 high-pressure heaters 10, contact(-type) heater 8(oxygen-eliminating device 8), press heater 17,2 contact(-type) heaters 15 and 2 low-pressure heaters 3 in 4.Wherein, each high-pressure heater, middle pressure heater and low-pressure heater are surface heater.
Condensate water in the condenser 1 is boosted by condensate pump 2, behind 2 grades of surface-type low-pressure heaters, enters first contact(-type) heater 15.Feedwater after 15 heating of first contact(-type) heater through in press feed pump 16 to boost, after pressing heater in 2 grades, enter second contact(-type) heater 15.Feedwater after second contact(-type) heater 15 heating through in press feed pump 16 to boost, after pressing heater in 2 grades, enter the 3rd contact(-type) heater 8(and can be used as oxygen-eliminating device 8).Feedwater after the deoxygenation is boosted through high pressure water pump 9, through 2 grades of surface-type high-pressure heaters, finally sends into the boiler (not shown).
Herein, low pressure, middle pressure and high pressure refer to the pressure of low-pressure heater, middle pressure heater and the relative present position of high-pressure heater in heat regenerative system, rather than the low pressure on the absolute pressure meaning, middle pressure and high pressure.
Specifically, in the utility model, corresponding each contact(-type) heater all configures feed pump, just is called " middle pressure feed pump " and " high pressure water pump " by the pressure of relative present position.Accordingly, the surface heater after the condensate pump is called as low-pressure heater; Surface heater after the middle pressure feed pump is called as middle pressure heater; Surface heater after the high pressure water pump is called as high-pressure heater.
In addition, one skilled in the art should appreciate that, although not shown or only schematically show, but the part of double reheat heat regenerative system of the present utility model is except part described above, also comprises corresponding condensing water conduit system, middle pressure water supply piping system, high-pressure feed water pipe-line system and heater condensate pipe-line system (comprising drainage pump).And, two or more contact(-type) heaters can be set as required, and the drainage pump system is set in heater as required, to improve system effectiveness.
The utility model compared with prior art, has following three advantages owing to being provided with two-stage or more multistage contact(-type) heater:
(1) the utility model is owing to being provided with two-stage or multi-stage hybrid heater more, and high-pressure heater of the prior art is divided into high-pressure heater and middle pressure heater, has effectively reduced the design pressure of part high-pressure heater, thereby can reduce construction costs.
(2) the utility model compared with prior art, therefore the quantity of high-pressure heater still less has more heater to have ready conditions and the drainage pump system is set, can improves the cycle efficieny of system.
(3) contact(-type) heater quantity of the present utility model is more than prior art, and the efficient specific surface formula heater of contact(-type) heater is high, so system effectiveness will be higher also.
Double reheat heat regenerative system of the present utility model can be applicable to the high parameter Fossil Fueled Power Plant Project, and particularly overcritical and ultra supercritical engineering is compared with existing double reheat heat regenerative system, can significantly reduce construction costs, improves unit thermodynamic system efficient.
Below described preferred embodiment of the present utility model in detail, but it will be appreciated that, after having read above-mentioned instruction content of the present utility model, those skilled in the art can make various changes or modifications the utility model.These equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. the heat regenerative system of power plant double reheat unit, described heat regenerative system comprises condenser, condensate pump, low-pressure heater, high pressure water pump and high-pressure heater, described low-pressure heater and described high-pressure heater are surface heaters, it is characterized in that:
Described heat regenerative system is provided with two with the different contact(-type) heater of upward pressure, and one in the described contact(-type) heater has the deoxygenation function;
Described heat regenerative system also comprises middle pressure heater and middle pressure feed pump, and described middle pressure heater and middle pressure feed pump are arranged between any two contact(-type) heaters.
2. heat regenerative system according to claim 1 is characterized in that:
Described heat regenerative system is provided with two contact(-type) heaters that pressure is different, and one in described two contact(-type) heaters has the deoxygenation function; And
The delivery port of the contact(-type) heater that pressure is lower is connected with described middle pressure feed pump, and the delivery port of the contact(-type) heater that pressure is higher is connected with described high pressure water pump.
3. heat regenerative system according to claim 1 is characterized in that:
Described heat regenerative system is provided with the different contact(-type) heater of Three pressures, and one in described three contact(-type) heaters has the deoxygenation function;
Described middle pressure heater is arranged between any two contact(-type) heaters; And
Delivery port along feedwater flow direction two contact(-type) heaters in front is connected with described middle pressure feed pump, and the delivery port of last contact(-type) heater is connected with described high pressure water pump.
4. heat regenerative system according to claim 1, it is characterized in that: the condensate water in the described condenser is boosted by described condensate pump, through described low-pressure heater, enter the lower contact(-type) heater of pressure, the water outlet of the contact(-type) heater that described pressure is lower is boosted by described middle pressure feed pump, through described middle pressure heater, enter the higher contact(-type) heater of pressure, the water outlet of the contact(-type) heater that described pressure is higher is boosted by high pressure water pump, through described high-pressure heater, finally send into boiler.
5. heat regenerative system according to claim 2, it is characterized in that: described heat regenerative system comprises 3 described low-pressure heaters, 4 described middle pressure heaters and 1 described high-pressure heater.
6. heat regenerative system according to claim 2, it is characterized in that: described heat regenerative system comprises 3 described low-pressure heaters, 2 described middle pressure heaters and 3 described high-pressure heaters.
7. heat regenerative system according to claim 2, it is characterized in that: described heat regenerative system comprises 3 described low-pressure heaters, 2 described middle pressure heaters and 2 described high-pressure heaters.
8. heat regenerative system according to claim 3, it is characterized in that: described heat regenerative system comprises 2 described low-pressure heaters, 4 described middle pressure heaters and 2 described high-pressure heaters.
9. each described heat regenerative system according to claim 1-8 is characterized in that: the hydrophobic employing of described middle pressure heater and described low-pressure heater arranges the drainage pump form from streamed or employing step by step.
10. generating equipment, described generating equipment comprises the double reheat unit, it is characterized in that: the heat regenerative system of described double reheat unit is such as each described heat regenerative system among the claim 1-8.
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| CN 201220456772 CN202915337U (en) | 2012-09-07 | 2012-09-07 | Regenerative system and generator of power plant secondary reheating unit |
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| CN 201220456772 CN202915337U (en) | 2012-09-07 | 2012-09-07 | Regenerative system and generator of power plant secondary reheating unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809142A (en) * | 2012-09-07 | 2012-12-05 | 中国电力工程顾问集团华东电力设计院 | Heat recovery system for secondary reheating unit in power plant and power plant |
| CN104121572A (en) * | 2014-08-05 | 2014-10-29 | 中国电力工程顾问集团西南电力设计院 | 1000MW stage secondary reheating unit single-row high-pressure heater system |
-
2012
- 2012-09-07 CN CN 201220456772 patent/CN202915337U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809142A (en) * | 2012-09-07 | 2012-12-05 | 中国电力工程顾问集团华东电力设计院 | Heat recovery system for secondary reheating unit in power plant and power plant |
| CN102809142B (en) * | 2012-09-07 | 2015-03-11 | 中国电力工程顾问集团华东电力设计院 | Heat recovery system for secondary reheating unit in power plant and power plant |
| CN104121572A (en) * | 2014-08-05 | 2014-10-29 | 中国电力工程顾问集团西南电力设计院 | 1000MW stage secondary reheating unit single-row high-pressure heater system |
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Granted publication date: 20130501 Effective date of abandoning: 20150311 |