CN219530915U - Air preheater capable of flexibly taking different types of heat sources - Google Patents
Air preheater capable of flexibly taking different types of heat sources Download PDFInfo
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- CN219530915U CN219530915U CN202223536280.7U CN202223536280U CN219530915U CN 219530915 U CN219530915 U CN 219530915U CN 202223536280 U CN202223536280 U CN 202223536280U CN 219530915 U CN219530915 U CN 219530915U
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- valve
- heat sources
- air preheater
- air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses an air preheater capable of flexibly taking different types of heat sources, belonging to the field of preheaters, and comprising an air inlet, an air outlet and an air preheater; one end of the air preheater is provided with the air inlet; the other end of the air preheater is provided with the air outlet. The air preheater capable of flexibly taking different types of heat sources disclosed by the utility model realizes the full utilization of each group of heating surfaces of the preheater by controlling the valves of the inlet and outlet and the communicating pipelines of the different types of heat sources of the air preheater, and the corresponding heating surfaces of the air preheater are led into other types of heat sources to continuously exchange heat during the period of stopping a certain heat source, meanwhile, the full utilization of the existing heat sources is realized, the flexible switching of the different heat sources is realized by utilizing the communicating pipelines before and after the heating surface, and the low-quality heat sources are used as much as possible under the condition of sufficient low-quality heat sources, so that the energy saving and efficiency improvement of a unit are realized.
Description
Technical Field
The utility model relates to a preheater, in particular to an air preheater capable of flexibly taking different types of heat sources.
Background
The arrangement form of the air preheater in the power plant at present depends on the type of the adopted heat source, the high-pressure steam corresponds to the high-pressure steam heating surface, the middle-low steam corresponds to the middle-low-pressure steam heating surface, the boiler circulating water corresponds to the circulating water heating surface, and the heat exchange surfaces of all groups are independent of each other and are not used in series, but in the actual operation process of the power plant, the situation that one or more heat sources are insufficient often occurs, at the moment, the air preheater can only work on the corresponding heating surface by a single medium to heat the air, and in this case, because only the single heating surface works, the heating effect is poor due to the limited heat exchange area, and then the combustion effect of the boiler is affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide the air preheater capable of flexibly taking different types of heat sources, the full utilization of each group of heating surfaces of the preheater is realized by controlling the valves at the inlet and the outlet of the different types of heat sources and the communicating pipeline of the air preheater, the corresponding heating surfaces of the air preheater are introduced into other types of heat sources to continuously exchange heat during the period of stopping a certain heat source, the full utilization of the existing heat sources is realized, the flexible switching of the different heat sources is realized by utilizing the communicating pipeline before and after the heating surfaces, and the low-quality heat sources are used as much as possible under the condition of sufficient low-quality heat sources, so that the energy saving and the efficiency improvement of a unit are realized.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an air preheater capable of flexibly taking different types of heat sources, which comprises an air inlet, an air outlet and an air preheater; one end of the air preheater is provided with the air inlet; the other end of the air preheater is provided with the air outlet.
The further technical scheme of the utility model is that a valve I is arranged on one side of the top end of the air preheater; a valve No. five is arranged on the other side of the top end of the air preheater; and a third valve is arranged between the first valve and the fifth valve.
The utility model further adopts the technical scheme that a second valve is arranged between the first valve and the third valve; and a fourth valve is arranged between the third valve and the fifth valve.
The utility model further adopts the technical scheme that a valve No. six is arranged at one side of the bottom end of the air preheater; a tenth valve is arranged on the other side of the bottom end of the air preheater; and a valve No. eight is arranged between the valve No. six and the valve No. ten.
The utility model further adopts the technical scheme that a seventh valve is arranged between the sixth valve and the eighth valve; and a valve No. nine is arranged between the valve No. eight and the valve No. ten.
The beneficial effects of the utility model are as follows:
according to the air preheater capable of flexibly taking different types of heat sources, the valves of the inlet and outlet and the communicating pipeline of the different types of heat sources of the air preheater are controlled to fully utilize each group of heating surfaces of the preheater, the corresponding heating surfaces of the air preheater are led into other types of heat sources to continuously exchange heat during the period of stopping a certain heat source, meanwhile, the existing heat sources are fully utilized, the front and back communicating pipeline of the heating surface is utilized to flexibly switch the different heat sources, and therefore the low-quality heat sources are used as much as possible under the condition that the low-quality heat sources are sufficient, and then the energy conservation and efficiency improvement of a unit are realized.
Drawings
FIG. 1 is a schematic diagram of an air preheater according to the present utility model that is capable of flexibly taking different types of heat sources.
In the figure:
a valve 1; a valve number two 2; a valve 3; a valve number four 4; a fifth valve 5; a valve 6; a valve 7; a valve 8; a valve 9; a valve 10; an air inlet 11; an air outlet 12; an air preheater 13.
Detailed Description
The utility model is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
The first embodiment is as follows:
the present utility model relates to a preheater, and more particularly, to an air preheater capable of flexibly taking different types of heat sources, comprising an air inlet 11, an air outlet 12 and an air preheater 13; one end of the air preheater 13 is provided with an air inlet 11; the other end of the air preheater 13 is provided with an air outlet 12, the full utilization of each group of heating surfaces of the preheater is realized by controlling valves at the inlet and outlet of different types of heat sources and the communicating pipeline of the air preheater, the corresponding heating surfaces of the air preheater are led into other types of heat sources to continuously exchange heat during the period of stopping a certain heat source, meanwhile, the full utilization of the existing heat sources is realized, the flexible switching of different heat sources is realized by utilizing the communicating pipeline before and after the heating surfaces, and the energy saving and the efficiency improvement of a unit are realized by using the low-quality heat sources as much as possible under the condition that the low-quality heat sources are sufficient.
The second embodiment is as follows:
next, referring to fig. 1, a first embodiment will be further described, in which a first valve 1 is provided on a top end side of an air preheater 13; a valve No. 5 is arranged on the other side of the top end of the air preheater 13; a third valve 3 is arranged between the first valve 1 and the fifth valve 5.
And a third specific embodiment:
next, referring to fig. 1, the first embodiment is further described, in which a second valve 2 is disposed between a first valve 1 and a third valve 3; a fourth valve 4 is arranged between the third valve 3 and the fifth valve 5.
The specific embodiment IV is as follows:
next, referring to fig. 1, a first embodiment will be further described, in which a sixth valve 6 is provided at a bottom end side of an air preheater 13; a tenth valve 10 is arranged on the other side of the bottom end of the air preheater 13; an eighth valve 8 is arranged between the sixth valve 6 and the tenth valve 10.
Fifth embodiment:
next, referring to fig. 1, the first embodiment will be further described, in which a seventh valve 7 is disposed between the sixth valve 6 and the eighth valve 8; a valve No. 9 is arranged between the valve No. 8 and the valve No. 10.
Working principle: the novel air preheater 13 has the same working effect as the air preheater in the traditional mode in the state that a valve 1, a valve 3, a valve 5, a valve 6, a valve 8 and a valve 10 are opened, and a valve 2, a valve 4, a valve 7, a valve 9 and a valve are closed; when the valve 3, the valve 8, the valve 4 and the valve 9 are closed, the rest valves are opened, the low-pressure steam heat source is deactivated, the original high-pressure steam pipeline and the communication pipeline enter the high-pressure low-pressure heating surface for heat exchange, and the operation of the boiler circulating water and the heating surface is not influenced; when the valve 3, the valve 5, the valve 8 and the valve 10 are closed, the rest valves are opened, the low-pressure steam heat source and the boiler circulating water heat source are stopped, high-pressure steam enters the high-pressure steam, the medium-low-pressure steam and the circulating hot water heating surface from the original pipeline and the communication pipeline at the same time to exchange heat, and the novel air preheater 13 can realize the heat exchange of the traditional three heat sources, and can realize the heat exchange of any one or two heat sources by using the original three groups of heating surfaces.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The utility model is not to be limited by the specific embodiments disclosed herein, but rather, embodiments falling within the scope of the appended claims are intended to be embraced by the utility model.
Claims (1)
1. The air preheater capable of flexibly taking different types of heat sources is characterized by comprising an air inlet, an air outlet and an air preheater;
one end of the air preheater is provided with the air inlet;
the other end of the air preheater is provided with the air outlet;
a valve I is arranged on one side of the top end of the air preheater;
a valve No. five is arranged on the other side of the top end of the air preheater;
a third valve is arranged between the first valve and the fifth valve;
a second valve is arranged between the first valve and the third valve;
a fourth valve is arranged between the third valve and the fifth valve;
a valve number six is arranged at one side of the bottom end of the air preheater;
a tenth valve is arranged on the other side of the bottom end of the air preheater;
an eighth valve is arranged between the sixth valve and the tenth valve;
a valve No. seven is arranged between the valve No. six and the valve No. eight;
and a valve No. nine is arranged between the valve No. eight and the valve No. ten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223536280.7U CN219530915U (en) | 2022-12-29 | 2022-12-29 | Air preheater capable of flexibly taking different types of heat sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223536280.7U CN219530915U (en) | 2022-12-29 | 2022-12-29 | Air preheater capable of flexibly taking different types of heat sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219530915U true CN219530915U (en) | 2023-08-15 |
Family
ID=87631647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223536280.7U Active CN219530915U (en) | 2022-12-29 | 2022-12-29 | Air preheater capable of flexibly taking different types of heat sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219530915U (en) |
-
2022
- 2022-12-29 CN CN202223536280.7U patent/CN219530915U/en active Active
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