CN211316132U - Flexible peak regulation system of electric steam boiler thermal power plant - Google Patents
Flexible peak regulation system of electric steam boiler thermal power plant Download PDFInfo
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- CN211316132U CN211316132U CN201922253826.XU CN201922253826U CN211316132U CN 211316132 U CN211316132 U CN 211316132U CN 201922253826 U CN201922253826 U CN 201922253826U CN 211316132 U CN211316132 U CN 211316132U
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Abstract
The utility model discloses a flexible peak regulation system of an electric steam boiler thermal power plant, which comprises a high-voltage transformer, an electric steam boiler system and an electric steam boiler system, wherein the electric steam boiler is connected with the high-voltage transformer, the industrial steam system is connected with the electric steam boiler through a first connecting pipeline, and a first steam control valve and a first steam regulating valve are arranged on the first connecting pipeline; the steam inlet of the heat exchanger of the heating system is connected to the first connecting pipeline between the first steam control valve and the first steam regulating valve through a second connecting pipeline, the drain outlet of the heat exchanger is connected with the electric steam boiler through a third connecting pipeline, the second connecting pipeline is provided with a second steam regulating valve, and the third connecting pipeline is provided with a drain control valve. The utility model provides an electric steam boiler thermal power plant flexibility peak shaving system, industry steam and heat supply are supplied with in alternative realization, reach the purpose of thermal power plant flexibility degree of depth peak shaving.
Description
Technical Field
The utility model relates to a thermal power plant's peak regulation technical field especially relates to an electric steam boiler thermal power plant's flexibility system of adjusting peak.
Background
Due to the adjustment of the economic structure of China, the power utilization composition is greatly changed: the peak power load is increased, the valley power consumption is greatly reduced, and the peak-valley difference is continuously enlarged. And along with the continuous expansion of the capacity of the power grid, more and more high-parameter and high-capacity units are gradually put into operation, so that the contradiction of peak-valley difference is further increased.
At present, in the traditional peak regulation market, a high-voltage electrode hot water boiler or a solid boiler is mainly adopted, the generated hot water can only supply heat for residents, so that the peak regulation market in areas with peak regulation requirements but low heating requirements is blank, industrial production in some industrially developed areas has large demand for industrial steam, and meanwhile, certain regional heating requirements exist along with the continuous improvement of the living standard of the residents.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric steam boiler thermal power plant flexibility peak shaving system to solve the above-mentioned weak point among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an electric steam boiler thermal power plant flexibility system of peaking, includes high voltage transformer, still includes:
the electric steam boiler system comprises an electric steam boiler, the electric steam boiler is connected with the high-voltage transformer, and the electric steam boiler comprises a water supply inlet and a steam outlet;
the industrial steam system is connected with the steam outlet through a first connecting pipeline, and a first steam control valve and a first steam regulating valve are arranged on the first connecting pipeline;
the heating system comprises a heat exchanger, a steam input port, a drainage output port, a heating network circulating water inlet and a heating network circulating water outlet are arranged on the heat exchanger, the steam input port is connected between the first steam control valve and the first steam regulating valve through a second connecting pipeline, the drainage output port is connected with the water supply inlet through a third connecting pipeline, a second steam regulating valve is arranged on the second connecting pipeline, and a water supply control valve is arranged on the third connecting pipeline.
The electric steam boiler thermal power plant flexibility peak regulation system further comprises a desalting and water supplementing system, wherein the desalting and water supplementing system is connected with the third connecting pipeline through a fourth connecting pipeline, and a regulating valve is arranged on the fourth connecting pipeline.
The electric steam boiler thermal power plant flexibility peak shaving system further comprises a water drainage control valve, wherein the water drainage control valve is arranged on the third connecting pipeline between the water drainage output port and the fourth connecting pipeline.
The flexible peak regulation system of the electric steam boiler thermal power plant further comprises a water drainage booster pump, wherein the water drainage booster pump is arranged on the third connecting pipeline between the water supply control valve and the fourth connecting pipe.
The electric steam boiler comprises one or more of an electrode steam boiler, a high-temperature heat-conducting oil electric steam boiler, a solid heat-storage electric steam boiler and a resistance-type steam electric boiler.
According to the electric steam boiler thermal power plant flexible peak regulation system, the heat exchanger comprises a tubular heat exchanger or a plate heat exchanger.
In the technical scheme, the utility model provides an electric steam boiler thermal power plant flexibility peak shaving system, including high voltage transformer, electric steam boiler system, industry steam system and heating system, can realize consuming the online electric quantity of thermal power plant with electric steam boiler, reach the purpose of thermal power plant flexibility degree of depth peak shaving, be favorable to the consumption of new forms of energy electric quantity, utilize industry steam system and heating system simultaneously, supply with industrial steam and heat supply network circulating water simultaneously, the product is not single, and wide applicability, adjust the hot product supply capacity according to terminal heat supply user and steam user's demand simultaneously, the flexibility is strong.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is the utility model discloses the structural schematic diagram of the flexibility system of peaking of electric steam boiler thermal power plant that the embodiment provided.
Description of reference numerals:
1. a high voltage transformer; 2. an electric steam boiler system; 2.1, an electric steam boiler; 3. an industrial steam system; 3.1, a first connecting pipeline; 3.2, a first steam control valve; 3.3, a first steam regulating valve; 4. a heating system; 4.1, a heat exchanger; 4.2, a second connecting pipeline; 4.3, a third connecting pipeline; 4.4, a second steam regulating valve; 4.5, a water supply control valve; 5. a desalting and water replenishing system; 5.1, a fourth connecting pipeline; 5.2, a drainage control valve; 5.3, a hydrophobic booster pump; 5.4, adjusting the valve.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention provides a flexible peak shaving system for an electric steam boiler thermal power plant, including a high-voltage transformer 1, an electric steam boiler system 2, an industrial steam system 3 and a heating system 4, where the electric steam boiler system 2 includes an electric steam boiler 2.1, the electric steam boiler 2.1 is connected with the high-voltage transformer 1, and the electric steam boiler 2.1 includes a water supply inlet and a steam outlet; the industrial steam system 3 is connected with a steam outlet through a first connecting pipeline 3.1, and a first steam control valve 3.2 and a first steam regulating valve 3.3 are arranged on the first connecting pipeline 3.1; the heat supply system 4 comprises a heat exchanger 4.1, a steam inlet, a drainage outlet, a heat supply network circulating water inlet and a heat supply network circulating water outlet are arranged on the heat exchanger 4.1, the steam inlet is connected to a first connecting pipeline 3.1 between a first steam control valve 3.2 and a first steam regulating valve 3.3 through a second connecting pipeline 4.2, a water supply outlet is connected with a water supply inlet through a third connecting pipeline 4.3, a second steam regulating valve 4.4 is arranged on the second connecting pipeline 4.2, and a water supply control valve 4.5 is arranged on the third connecting pipeline 4.3.
Specifically, the electric steam boiler 2.1 thermal power plant flexibility peak shaving system comprises an electric steam boiler system 2, an industrial steam system 3 and a heat supply system 4, the electric steam boiler system 2 is connected with a high-voltage transformer 1, an electric controller is arranged between the high-voltage transformer 1 and the electric steam boiler system 2 and can control the connection or disconnection between the electric steam boiler system 2 and the high-voltage transformer 1, so that the peak shaving requirement on a power grid can be realized, the electric steam boiler system 2 comprises an electric steam boiler 2.1, the voltage grade range of the electric steam boiler 2.1 is 6-35KV, the power range of the electric steam boiler 2.1 is 0-90MW, the electric steam boiler 2.1 is provided with GIS (geographic information system) switching equipment or bus switching equipment according to the actual engineering requirement, the electric steam boiler 2.1 can be one of an electrode steam boiler, a high-temperature heat-conducting oil electric steam boiler, a solid heat storage electric steam, the steam boiler can also be formed by combining several of an electrode steam boiler, a high-temperature heat-conducting oil-electric steam boiler, a solid heat-storage electric steam boiler and a resistance-type steam-electric boiler, the electric steam boiler 2.1 comprises a water supply inlet and a steam outlet, the steam outlet is used for outputting steam, the water supply inlet is used for continuously conveying heat-exchanged drain water to the electric steam boiler 2.1, the steam outlet and the water supply inlet can be one or two or more, the industrial steam system 3 is connected with the steam outlet through a first connecting pipeline 3.1, the first connecting pipeline 3.1 is provided with a first steam control valve 3.2 and a first steam regulating valve 3.3, the first steam control valve 3.2 and a second steam regulating valve 4.4 can realize opening and closing of the first connecting pipeline 3.1 and regulating the steam conveying amount, steam is conveyed to an industrial user through the first connecting pipeline 3.1, and can be used for conveying steam to the industrial user according to the requirements of the industrial user, the industrial steam delivery is adjusted by a first steam control valve 3.2 and a second steam adjusting valve 4.4, the heat supply system 4 comprises a heat exchanger 4.1, the heat exchanger 4.1 is provided with a steam inlet, a hydrophobic outlet, a heat supply network circulating water inlet and a heat supply network circulating water outlet, the steam inlet, the hydrophobic outlet, the heat supply network circulating water inlet and the heat supply network circulating water outlet can be one or two or more according to requirements, the heat supply network circulating water inlet is connected with heat supply network circulating water supply, the heat supply network circulating water outlet is connected with heat supply network circulating water return, the flow directions of the hot steam and the circulating water in the heat exchanger 4.1 are opposite, the heat exchanger 4.1 can be a tubular heat exchanger 4.1 or a plate heat exchanger 4.1 or a tubular + plate heat exchanger 4.1, the steam inlet is connected on a first connecting pipeline 3.1 between the first steam control valve 3.2 and the first steam adjusting valve 3.3 by a second connecting pipeline 4.2, the water drainage output port is connected with the steam inlet through a third connecting pipeline 4.3, a second steam regulating valve 4.4 is arranged on the second connecting pipeline 4.2, a water supply control valve 4.5 is arranged on the third connecting pipeline 4.3, the second steam regulating valve 4.4 is used for regulating and controlling the second connecting pipeline 4.2, and the water supply control valve 4.5 is used for controlling the third connecting pipeline 4.3.
In this embodiment, in an actual use process, when a power grid has a peak shaving demand on a power plant, the high-voltage transformer 1 is started, the first steam control valve 3.2 and the first steam regulating valve 3.3 are opened, the demineralized water replenishing regulating valve 5.4, the water drainage booster pump 5.3 and the water supply control valve 4.5 are opened, and the second steam regulating valve 4.4 and the water drainage control valve 5.2 are closed, so that steam in the electric steam boiler 2.1 can be conveyed to an industrial user through the first connecting pipeline 3.1, and the output quantity of the steam can be regulated according to the steam demand of the user through the first steam regulating valve 3.3. If heat supply needs exist, the second steam regulating valve 4.4 and the drainage control valve 5.2 can be opened, heat supply steam is introduced into the heat exchanger 4.1 to exchange heat with circulating water return of a heat supply network, the circulating water supply of the heat supply network supplies heat outwards, when the heat exchange is carried out on the circulating water of the heat supply network through the heat exchanger 4.1, the first steam regulating valve 3.3 can be closed, and the first steam regulating valve 3.3 and the second steam regulating valve 4.4 can be regulated, so that part of the hot steam output by the electric steam boiler 2.1 is conveyed to the industrial steam system 3, and part of the hot steam is conveyed to the heat supply system 4 at the same time, the power generation load of the power plant is consumed by the electric steam boiler 2.1, the flexible peak regulation of the power plant is realized, and meanwhile, high-temperature steam is.
The embodiment of the utility model provides an electric steam boiler thermal power plant flexibility peak shaving system, including high voltage transformer 1, electric steam boiler system 2, industrial steam system 3 and heating system 4, can realize consuming the online electric quantity of thermal power plant with electric steam boiler system 2, reach the purpose of thermal power plant's flexibility degree of depth peak shaving, be favorable to the absorption of new forms of energy electric quantity, utilize industrial steam system 3 and heating system 4 simultaneously, supply with industrial steam and heat supply network circulating water simultaneously, the product is not single, therefore, the high-speed automatic peak shaving system is wide in applicability, adjust the hot product supply volume according to terminal heat supply user and steam user's demand simultaneously, the flexibility is strong.
In this embodiment, preferably, the system further includes a demineralized water charging system 5, the demineralized water charging system 5 is connected to the third connecting pipe 4.3 through a fourth connecting pipe 5.1, an adjusting valve 5.4 is disposed on the fourth connecting pipe 5.1, the demineralized water charging system 5 is configured to deliver water to the electric steam boiler 2.1, and the adjusting valve 5.4 is configured to controllably adjust whether the demineralized water charging system 5 supplies water to the electric steam boiler 2.1.
In this embodiment, preferably, the system further includes a water drainage control valve 5.2, the water drainage control valve 5.2 is disposed on the third connecting pipe 4.3 between the water drainage output port and the fourth connecting pipe 5.1, the water drainage control valve 5.2 is configured to control the third connecting pipe 4.3 between the water drainage output port and the fourth connecting pipe 5.1, so that the third connecting pipe is opened or closed, when the power grid has a peak shaving demand on the power plant, the high-voltage transformer 1 is started, the first steam control valve 3.2 and the first steam regulating valve 3.3 are opened, and the second steam regulating valve 4.4 is closed, so that steam in the electric steam boiler 2.1 can be delivered to an industrial user through the first connecting pipe 3.1, and the water drainage control valve 5.2 is closed, so that the salt removal and water supplement system 5 supplements water to the electric steam boiler 2.1.
In this embodiment, it is preferable that the system further includes a water drainage booster pump 5.3, and the water drainage booster pump 5.3 is disposed on the third connecting pipe 4.3 between the water supply control valve 4.5 and the fourth connecting pipe; and the drainage control valve 5.2 is opened, so that the drainage of the heat exchanger 4.1 can be led back to the inlet of the drainage booster pump 5.3, and the drainage in the heat exchanger 4.1 can be output and reused.
In this embodiment, preferably, the electric steam boiler 2.1 includes one or more of an electrode steam boiler, a high-temperature heat-conducting oil electric steam boiler, a solid heat-storage electric steam boiler and a resistance-type steam electric boiler; the electricity generating load of a power plant can be consumed by the electricity steam boiler 2.1 through the electrode steam boiler, the high-temperature heat-conducting oil-electricity steam boiler, the solid heat-storage electricity steam boiler and the resistance-type steam-electricity boiler, the flexible peak regulation of the power plant is realized, high-temperature steam is generated for industrial production or heat supply network circulating water is generated for supplying heat to the outside, and the electricity steam boiler 2.1 can also be the high-temperature heat-conducting oil-electricity steam boiler 2.1 or the resistance-type steam-.
In this embodiment, preferably, the heat exchanger 4.1 includes a tubular heat exchanger 4.1 or a plate heat exchanger 4.1, and heat exchange with the heat supply network circulating water can be realized through the tubular heat exchanger 4.1 or the plate heat exchanger 4.1, so that a heat supply demand is provided for a user.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
1. The utility model provides an electric steam boiler thermal power plant flexibility system of peaking, includes high voltage transformer, its characterized in that still includes:
the electric steam boiler system comprises an electric steam boiler, the electric steam boiler is connected with the high-voltage transformer, and the electric steam boiler comprises a water supply inlet and a steam outlet;
the industrial steam system is connected with the steam outlet through a first connecting pipeline, and a first steam control valve and a first steam regulating valve are arranged on the first connecting pipeline;
the heating system comprises a heat exchanger, a steam input port, a drainage output port, a heating network circulating water inlet and a heating network circulating water outlet are arranged on the heat exchanger, the steam input port is connected between the first steam control valve and the first steam regulating valve through a second connecting pipeline, the drainage output port is connected with the water supply inlet through a third connecting pipeline, a second steam regulating valve is arranged on the second connecting pipeline, and a water supply control valve is arranged on the third connecting pipeline.
2. The electric steam boiler thermal power plant flexibility peak shaving system of claim 1, further comprising a desalination make-up water system, wherein the desalination make-up water system is connected with the third connecting pipe through a fourth connecting pipe, and the fourth connecting pipe is provided with a regulating valve.
3. An electric steam boiler thermal power plant flexibility peaking system as claimed in claim 2, further comprising a drain control valve disposed on the third connecting conduit between the drain outlet and a fourth connecting conduit.
4. An electric steam boiler thermal power plant flexibility peaking system as claimed in claim 3, further comprising a hydrophobic booster pump disposed on the third connection pipe between the feedwater control valve and the fourth connection pipe.
5. An electric steam boiler thermal power plant flexibility peak shaver system as in claim 1, wherein said electric steam boiler comprises one or more of an electrode steam boiler, a high temperature heat transfer oil electric steam boiler, a solid heat storage electric steam boiler, and an electric resistance steam electric boiler.
6. An electric steam boiler thermal power plant flexibility peaking system as claimed in claim 1, wherein said heat exchanger comprises a tube heat exchanger or a plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922253826.XU CN211316132U (en) | 2019-12-16 | 2019-12-16 | Flexible peak regulation system of electric steam boiler thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922253826.XU CN211316132U (en) | 2019-12-16 | 2019-12-16 | Flexible peak regulation system of electric steam boiler thermal power plant |
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| CN211316132U true CN211316132U (en) | 2020-08-21 |
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| CN201922253826.XU Active CN211316132U (en) | 2019-12-16 | 2019-12-16 | Flexible peak regulation system of electric steam boiler thermal power plant |
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