CN213395274U - Combined cycle unit based on start-stop node gas consumption supervision - Google Patents
Combined cycle unit based on start-stop node gas consumption supervision Download PDFInfo
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- CN213395274U CN213395274U CN202022364639.1U CN202022364639U CN213395274U CN 213395274 U CN213395274 U CN 213395274U CN 202022364639 U CN202022364639 U CN 202022364639U CN 213395274 U CN213395274 U CN 213395274U
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Abstract
The technical scheme of the utility model is realized like this: a combined cycle unit based on start-stop node gas consumption supervision comprises a furnace body, wherein a first condensed water heater, a second condensed water heater and a third condensed water heater are arranged in the furnace body, a water supply regulating valve is connected to the first condensed water heater, a low-pressure steam drum is connected to the outlet end of the water supply regulating valve, and a condensed water pump is connected to the third condensed water heater; the water circulation system is characterized by also comprising a high-temperature circulation water pipeline, a warm circulation water pipeline and a low-temperature circulation water pipeline, wherein the high-temperature circulation water pipeline, the medium-temperature circulation water pipeline and the low-temperature circulation water pipeline are respectively provided with a high-temperature water device, a medium-temperature water device and a low-temperature water device; the high-temperature water using equipment is respectively communicated with the medium-temperature water using equipment and the low-temperature water using equipment through water circulating pipelines; the utility model has the advantages that: the energy of the high-temperature hot water is fully utilized.
Description
Technical Field
The utility model relates to a combined cycle unit, especially a combined cycle unit based on open and stop node gas consumption and supervise.
Background
The solar terms of the combined cycle unit are supervised and controlled, generally except for a combustion engine, from the starting of the unit to the whole set of operation, and an operator manually operates a waste heat boiler, a steam turbine, a GIS and an auxiliary system; the waste heat boiler is used as an important part in the monitoring device and is mainly used for recovering waste heat of waste gas of the gas turbine; the loss of flue gas is the main loss of the boiler and also the main factor influencing the efficiency of the boiler; the temperature of the boiler exhaust smoke is generally about 150 ℃, so that low-temperature smoke containing a large amount of heat is discharged to the atmosphere from a chimney and is not fully utilized, and the thermal efficiency of the boiler is reduced; the waste heat boiler adopts the heat exchanger to recover waste heat, the existing waste heat boiler needs to heat high-temperature water for supplying hot water to outside and then reduce the temperature, thus wasting the hot water with higher quality at the outlet of the condensed water heater, and the higher the temperature in the condensed water heater is, the smaller the heat exchange temperature difference between the water as the working medium in the pipe and the flue gas outside the pipe is, the more heating surfaces need to be arranged for lifting the working medium water in the pipe, thus reducing the output of the boiler, increasing the metal consumption of the condensed water heater, and being incapable of fully utilizing high-temperature energy.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a combined cycle unit based on open and stop node gas consumption supervision for solve the problem among the above-mentioned background art.
The technical scheme of the utility model is realized like this: the utility model provides a combined cycle unit based on start stop node gas consumption supervise which characterized in that: the boiler comprises a boiler body, wherein a flue gas inlet is arranged on the left side of the boiler body, a first condensate heater, a second condensate heater and a third condensate heater are sequentially arranged in the boiler body from left to right, the first condensate heater, the second condensate heater and the third condensate heater are sequentially communicated, the outlet end of the first condensate heater is connected with a water supply regulating valve, the water supply regulating valve is connected with a low-pressure steam pocket, and the inlet end of the third condensate heater is connected with a condensate pump; the first condensed water heater is connected with a high-temperature circulating water pipeline, the second condensed water heater is connected with a medium-temperature circulating water pipeline, the third condensed water heater is connected with a low-temperature circulating water pipeline, and the high-temperature circulating water pipeline, the medium-temperature circulating water pipeline and the low-temperature circulating water pipeline are respectively provided with high-temperature water using equipment, medium-temperature water using equipment and low-temperature water using equipment; the high-temperature water using equipment is respectively communicated with the medium-temperature water using equipment and the low-temperature water using equipment through water circulating pipelines, the medium-temperature water using equipment is also communicated with the low-temperature water using equipment through the water circulating pipelines, and the water circulating pipelines are provided with thermometers and a plurality of control valves.
Preferably: and the high-temperature circulating water pipeline, the medium-temperature circulating water pipeline and the low-temperature circulating water pipeline are respectively provided with a heat exchanger and an opening and closing valve.
Preferably: and flow meters are also arranged on the high-temperature circulating water pipeline, the medium-temperature circulating water pipeline and the low-temperature circulating water pipeline.
Preferably: and a water supply circulating pipeline is arranged between the water supply regulating valve and the condensate pump, and a circulating valve and a circulating pump are arranged on the water supply circulating pipeline.
Preferably: the first condensed water heater, the second condensed water heater and the third condensed water heater are all arranged in a staggered mode through finned tubes.
The utility model has the advantages that: the utility model adopts a plurality of heat supply points with different temperatures to supply heat, divides the water pipeline into a high temperature circulating water pipeline, a medium temperature circulating water pipeline and a low temperature circulating water pipeline according to the temperature, and the water quality after the water is used by the high temperature circulating water pipeline and the medium temperature circulating water pipeline is pollution-free, can be used by the water equipment with low first-level temperature, has sufficient heat use and full use, avoids energy waste, can ensure the timely supply of hot water using demands with different temperatures, and has full use of hot water and full utilization of energy; the heating water temperature and the flow of the boiler can be flexibly and conveniently adjusted, the whole heating system does not need to carry out large desuperheating water operation, the feed water temperature entering the boiler is improved, and the output of a boiler unit can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a partially enlarged structure of an embodiment of the present invention;
the examples in the figure are: 1. the boiler comprises a boiler body, 2, a flue gas inlet, 3, a first condensed water heater, 4, a second condensed water heater, 5, a third condensed water heater, 6, a water supply regulating valve, 7, a low-pressure steam pocket, 8, a condensed water pump, 9, a high-temperature circulating water pipeline, 10, a medium-temperature circulating water pipeline, 11, a low-temperature circulating water pipeline, 12, a high-temperature water device, 13, a medium-temperature water device, 14, a low-temperature water device, 15, a thermometer, 16, a control valve, 17, a water circulating pipeline, 18, a heat exchanger, 19, an opening and closing valve, 20, a low-temperature water tank, 21, a flowmeter, 22, a water supply circulating pipeline, 23, a circulating valve, 24 and a circulating pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in FIG. 1 and FIG. 2, the utility model discloses a combined cycle unit based on open and stop node gas consumption supervision, its characterized in that: the boiler comprises a boiler body 1, wherein a flue gas inlet 2 is arranged on the left side of the boiler body 1, flue gas enters the interior of the boiler body 1 from the flue gas inlet 2 on the left side of the boiler body 1, a first condensate heater 3, a second condensate heater 4 and a third condensate heater 5 are sequentially arranged in the boiler body 1 from left to right, the first condensate heater 3, the second condensate heater 4 and the third condensate heater 5 are sequentially communicated, the outlet end of the first condensate heater 3 is connected with a feed water regulating valve 6, the feed water regulating valve 6 is connected with a low-pressure steam pocket 7, the inlet end of the third condensate heater 5 is connected with a condensate pump 8, and boiler feed water enters the boiler body 1 from the right side through the condensate pump 8; the first condensed water heater 3 is connected with a high-temperature circulating water pipeline 9, the second condensed water heater 4 is connected with a medium-temperature circulating water pipeline 10, the third condensed water heater 5 is connected with a low-temperature circulating water pipeline 11, and the high-temperature circulating water pipeline 9, the medium-temperature circulating water pipeline 10 and the low-temperature circulating water pipeline 11 are respectively provided with a high-temperature water device 12, a medium-temperature water device 13 and a low-temperature water device 14; the high-temperature water equipment 12 is respectively communicated with medium-temperature water equipment 13 and low-temperature water equipment 14 through a water circulation pipeline 17, the medium-temperature water equipment 13 is also communicated with the low-temperature water equipment 14 through the water circulation pipeline 17, and a thermometer 15 and a plurality of control valves 16 are arranged on the water circulation pipeline 17; in this embodiment, the high temperature water equipment 12 and the medium temperature water equipment 13 both have no pollution to hot water after the hot water is used, the temperature of the high temperature water equipment 12 is controlled to be about 80 ℃ for the low temperature generator, the temperature of the medium temperature water equipment 13 is controlled to be about 50 ℃ for the air cooling machine, and the temperature of the low temperature water equipment 14 is controlled to be about 40 ℃ for the household bath; through the connection of the water circulation pipeline 17, the medium temperature water equipment 13 and the low temperature water equipment 14 can be directly supplied, and simultaneously, hot water used by the high temperature water equipment 12 can also be used, so that the purpose that the high temperature water equipment 12, the medium temperature water equipment 13 and the low temperature water equipment 14 use the hot water step by step is achieved.
Through the technical scheme, the utility model discloses a plurality of different temperatures's heat supply point supplies heat, divide into high temperature circulation water pipe way 9, medium temperature circulation water pipe way 10 and low temperature circulation water pipe way 11 with the water pipeline according to the temperature, and water quality is pollution-free after high temperature circulation water pipe way 9 and medium temperature circulation water pipe way 10 use water, can supply the water equipment use of low one-level temperature, the heat is used fully, make full use of, avoid the energy waste, and can ensure the timely supply of different temperature hot water user demands, the hot water is used fully, the energy make full use of; the heating water temperature and the flow of the boiler can be flexibly and conveniently adjusted, the whole heating system does not need to carry out large desuperheating water operation, the feed water temperature entering the boiler is improved, and the output of a boiler unit can be effectively improved.
In this embodiment, the high-temperature circulating water pipeline 9, the medium-temperature circulating water pipeline 10 and the low-temperature circulating water pipeline 11 are all provided with a heat exchanger 18 and an opening and closing valve 19, and the water circulating pipeline 17 is further connected with a low-temperature water tank 20 for neutralizing high-temperature hot water to form mixed hot water to reach a specified temperature; the high-temperature circulating water pipeline 9, the medium-temperature circulating water pipeline 10 and the low-temperature circulating water pipeline 11 are also provided with flow meters 21, so that the water consumption of each pipeline can be counted conveniently; a water supply circulating pipeline 22 is arranged between the water supply regulating valve 6 and the condensate pump 8, and a circulating valve 23 and a circulating pump 24 are installed on the water supply circulating pipeline 22 for cyclic utilization.
Example 2
As shown in the condensed water heater portion of fig. 1, the present embodiment is different from the above embodiments in that, in the present embodiment, the first condensed water heater 3, the second condensed water heater 4 and the third condensed water heater 5 are all arranged in a staggered fin tube arrangement.
Through the technical scheme, the fin tubes of the condensed water heaters are arranged in a staggered mode, so that the heating area is expanded, the size and the weight of the heat exchanger 18 are reduced, and the heat transfer efficiency is improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a combined cycle unit based on start stop node gas consumption supervise which characterized in that: the device comprises a furnace body, wherein a flue gas inlet is arranged on the left side of the furnace body, a first condensate heater, a second condensate heater and a third condensate heater are sequentially arranged in the furnace body from left to right, the first condensate heater, the second condensate heater and the third condensate heater are sequentially communicated, the outlet end of the first condensate heater is connected with a water supply regulating valve, the outlet end of the water supply regulating valve is connected with a low-pressure steam pocket, and the inlet end of the third condensate heater is connected with a condensate pump; the first condensed water heater is connected with a high-temperature circulating water pipeline, the second condensed water heater is connected with a medium-temperature circulating water pipeline, the third condensed water heater is connected with a low-temperature circulating water pipeline, and the high-temperature circulating water pipeline, the medium-temperature circulating water pipeline and the low-temperature circulating water pipeline are respectively provided with high-temperature water using equipment, medium-temperature water using equipment and low-temperature water using equipment; the high-temperature water using equipment is respectively communicated with the medium-temperature water using equipment and the low-temperature water using equipment through water circulating pipelines, the medium-temperature water using equipment is also communicated with the low-temperature water using equipment through the water circulating pipelines, and the water circulating pipelines are provided with thermometers and a plurality of control valves.
2. The combined cycle plant based on start-stop node gas consumption supervision of claim 1, characterized in that: and the high-temperature circulating water pipeline, the medium-temperature circulating water pipeline and the low-temperature circulating water pipeline are respectively provided with a heat exchanger and an opening and closing valve.
3. The combined cycle plant based on start-stop node gas consumption supervision of claim 2, characterized in that: and flow meters are also arranged on the high-temperature circulating water pipeline, the medium-temperature circulating water pipeline and the low-temperature circulating water pipeline.
4. The combined cycle plant based on start-stop node gas consumption supervision of claim 1, characterized in that: and a water supply circulating pipeline is arranged between the water supply regulating valve and the condensate pump, and a circulating valve and a circulating pump are arranged on the water supply circulating pipeline.
5. The combined cycle unit based on start-stop node gas consumption supervision as claimed in any one of claims 1 to 4, characterized in that: the first condensed water heater, the second condensed water heater and the third condensed water heater are all arranged in a staggered mode through finned tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022364639.1U CN213395274U (en) | 2020-10-22 | 2020-10-22 | Combined cycle unit based on start-stop node gas consumption supervision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022364639.1U CN213395274U (en) | 2020-10-22 | 2020-10-22 | Combined cycle unit based on start-stop node gas consumption supervision |
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| Publication Number | Publication Date |
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| CN213395274U true CN213395274U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022364639.1U Active CN213395274U (en) | 2020-10-22 | 2020-10-22 | Combined cycle unit based on start-stop node gas consumption supervision |
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