CN213207818U - Novel high-pressure heater - Google Patents
Novel high-pressure heater Download PDFInfo
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- CN213207818U CN213207818U CN202021601437.8U CN202021601437U CN213207818U CN 213207818 U CN213207818 U CN 213207818U CN 202021601437 U CN202021601437 U CN 202021601437U CN 213207818 U CN213207818 U CN 213207818U
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Abstract
The utility model provides a novel high pressure feed water heater belongs to high pressure feed water heater heat transfer system technical field. The utility model discloses well be provided with superheated steam cooling section A part and superheated steam cooling section B part in the heat exchange tube a, leave superheated steam cooling section A part export and superheated steam cooling section B part entry on the heat exchange tube a, leave superheated steam cooling section A part entry and superheated steam cooling section B part export on the heat exchange tube B, superheated steam cooling section A part export passes through steam channel with superheated steam cooling section A part entry and is connected, superheated steam cooling section B part export passes through steam channel with superheated steam cooling section B part entry and is connected. The utility model discloses unite two into one traditional high pressure feed water heater and external steam cooler, save and evaporate cold high pressure water supply pipe, practiced thrift the cost, the partial heat exchange tube pressure-bearing of steam is lower, and the leakage risk is lower.
Description
Technical Field
The utility model relates to a novel high pressure feed water heater belongs to high pressure feed water heater heat transfer system technical field.
Background
In recent years, the power industry in China is continuously and rapidly developed, and the grade of a thermal power generating set is gradually improved from 300MW to the grade level of 1000 MW. At present, the common practice is to configure an external steam cooler, and heat the final-stage feed water of the high pressure heating system by using the steam superheat degree of a No.3 high pressure heater through the external steam cooler, so as to further increase the feed water temperature. The arrangement mode of the system is applied to hundreds of sets of units, and the technology is mature.
As shown in fig. 1, a conventional high-pressure heater system needs a ZL (steam cooler), steam a enters the ZL, releases heat, then is drained out of steam B, is discharged from a steam outlet of the ZL, enters a No.3 high-pressure heater, enters a No.1 high-pressure heater, releases heat, then is condensed into hydrophobic water, then enters a No.2 high-pressure heater, and enters a No.2 high-pressure heater. After releasing heat, the water is condensed into hydrophobic water, and then enters a NO.3 high-pressure heater.
The problems with conventional high pressure heater systems are also apparent: the external steam cooler is a single device, and a long pipeline is needed for connecting the device, especially when the pressure is high and the unit capacity is large, more pipelines are needed, so the cost is high; the external steam cooler is used as a U-tube type heat exchanger, high-pressure water is supplied into a heat exchange tube of the external steam cooler, and certain leakage risk exists. Therefore, a new heater is needed, which can combine a high-pressure heater and an external steam cooler into a whole.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems existing in the prior art and further providing a novel high-pressure heater.
The utility model aims at realizing through the following technical scheme:
a novel high pressure heater comprising: the device comprises a first spherical end socket and a shell, wherein the first spherical end socket is connected with one end of the shell through a tube plate A, a first water supply inlet, a first manhole and a first water supply outlet are sequentially arranged on the first spherical end socket, a first heating steam inlet is arranged on the upper surface of the shell, a first drainage outlet is arranged on the lower surface of the shell, and a heat exchange tube a is arranged on one side, close to the first spherical end socket, in the shell;
further comprising: the system comprises a superheated steam cooling section A part, a superheated steam cooling section A part outlet, a superheated steam cooling section B part inlet, a steam cooling section cladding, a superheated steam cooling section B part, a steam channel, a cladding, a superheated steam cooling section B part outlet, a tube plate B, a third heating steam inlet, a second manhole, a second spherical end socket, a third heating steam outlet, a superheated steam cooling section A part inlet and a heat exchange tube B;
the superheated steam cooling device comprises a heat exchange tube a, a superheated steam cooling section A and a superheated steam cooling section B, a steam cooling section cladding is arranged on the outer sides of the superheated steam cooling section A and the superheated steam cooling section B, a superheated steam cooling section A outlet and a superheated steam cooling section B inlet are reserved on the heat exchange tube a, a second spherical head is connected with the other end of a shell through a tube plate B, a third heating steam inlet, a second manhole and a third heating steam outlet are sequentially arranged on the second spherical head, a heat exchange tube B is arranged on one side, close to the second spherical head, in the shell, the outer side of the heat exchange tube B is provided with a cladding, a superheated steam cooling section A inlet and a superheated steam cooling section B outlet are reserved on the heat exchange tube B, the superheated steam cooling section A outlet is connected with the superheated steam cooling section A inlet through a steam channel, and the superheated steam cooling section B outlet is connected with the superheated steam cooling section B inlet through a steam channel .
The first heating steam inlet is communicated with the superheated steam cooling section A.
Steam enters the superheated steam cooling section a part inlet 21 from the superheated steam cooling section a part outlet 8 through the steam channel 13.
Steam enters the superheated steam cooling section B part inlet 10 from the superheated steam cooling section B part outlet 15 through the steam channel 13.
The utility model has the advantages that:
the utility model discloses weak point to current high pressure feed water heater system has proposed a system layout simple novel high pressure feed water heater, and this novel high pressure feed water heater unites two into one traditional high pressure feed water heater and external steam cooler, has save and has evaporated cold high pressure water supply pipe, has practiced thrift the cost.
The utility model discloses compare with traditional U type tubular high pressure feed water heater, its afterbody is furnished with a set of tube sheet and cavity and heat exchange tube to be furnished with steam inlet pipe and outlet pipe, the steam portion heat exchange tube pressure-bearing of the novel high pressure feed water heater after the change is lower, and the leakage risk is lower.
Drawings
Fig. 1 is a schematic diagram of a conventional high pressure heater system.
Fig. 2 is a schematic structural diagram of the novel high-pressure heater of the present invention.
Fig. 3 is a schematic diagram of a system structure of the novel high-pressure heater of the present invention.
In the drawing, reference numerals 1 denote a first drain outlet, 2 denote a first spherical head, 3 denote a first water supply inlet, 4 denote a first manhole, 5 denote a first water supply outlet, 6 denote a tube plate a, 7 denote a superheated steam cooling section a part, 8 denote a superheated steam cooling section a part outlet, 9 denote a first heating steam inlet, 10 denote a superheated steam cooling section B part inlet, 11 denote a steam cooling section jacket, 12 denote a superheated steam cooling section B part, 13 denote a steam channel, 14 denote a jacket, 15 denote a superheated steam cooling section B part outlet, 16 denote a tube plate B, 17 denote a third heating steam inlet, 18 denote a second manhole, 19 denote a second spherical head, 20 denote a third heating steam outlet, 21 denote a superheated steam cooling section a part inlet, 22 denote a shell, 23 denote a heat exchange tube B, and 24 denote a heat exchange tube a.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation is given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 2 and 3, the novel high-pressure heater according to the present embodiment includes: the device comprises a first spherical head 2 and a shell 22, wherein the first spherical head 2 is connected with one end of the shell 22 through a tube plate A6, a first water supply inlet 3, a first manhole 4 and a first water supply outlet 5 are sequentially arranged on the first spherical head 2, a first heating steam inlet 9 is arranged on the upper surface of the shell 22, a first drainage outlet 1 is arranged on the lower surface of the shell 22, and a heat exchange tube a24 is arranged on one side, close to the first spherical head 2, in the shell 22;
further comprising: the system comprises a superheated steam cooling section A part 7, a superheated steam cooling section A part outlet 8, a superheated steam cooling section B part inlet 10, a steam cooling section cladding 11, a superheated steam cooling section B part 12, a steam channel 13, a cladding 14, a superheated steam cooling section B part outlet 15, a tube plate B16, a third heating steam inlet 17, a second manhole 18, a second spherical end socket 19, a third heating steam outlet 20, a superheated steam cooling section A part inlet 21 and a heat exchange tube B23;
a superheated steam cooling section A part 7 and a superheated steam cooling section B part 12 are arranged in the heat exchange tube a24, a steam cooling section cladding 11 is arranged on the outer sides of the superheated steam cooling section A part 7 and the superheated steam cooling section B part 12, a superheated steam cooling section A part outlet 8 and a superheated steam cooling section B part inlet 10 are reserved on the heat exchange tube a24, the other end of the second spherical head 19 is connected with the shell 22 through a tube plate B16, a third heating steam inlet 17, a second manhole 18 and a third heating steam outlet 20 are sequentially arranged on the second spherical head 19, a heat exchange tube B23 is arranged on one side of the shell 22 close to the second spherical head 19, a cladding 14 is arranged on the outer side of the heat exchange tube B23, a superheated steam cooling section A part inlet 21 and a superheated steam cooling section B part outlet 15 are reserved on the heat exchange tube B23, the superheated steam cooling section A part outlet 8 is connected with the superheated steam cooling section A part inlet 21 through a steam channel 13, the outlet 15 of the part B of the superheated steam cooling section is connected with the inlet 10 of the part B of the superheated steam cooling section through a steam channel 13.
The first heating steam inlet 9 is communicated with the superheated steam cooling section a part 7.
Steam enters the superheated steam cooling section a part inlet 21 from the superheated steam cooling section a part outlet 8 through the steam channel 13.
Steam enters the superheated steam cooling section B part inlet 10 from the superheated steam cooling section B part outlet 15 through the steam channel 13.
Example 1
As shown in fig. 2, the U-tube heat exchanger a includes: the device comprises a first drainage outlet 1, a first spherical end socket 2, a first feed water inlet 3, a first manhole 4, a first feed water outlet 5, a tube plate A6, a superheated steam cooling section A part 7, a superheated steam cooling section A part outlet 8, a first heating steam inlet 9, a superheated steam cooling section B part inlet 10, a steam cooling section cladding 11, a superheated steam cooling section B part 12, a steam channel 13 and a heat exchange tube a 24;
the first spherical end socket 2 is connected with one end of the shell 22 through a tube plate A6, a first water supply inlet 3, a first manhole 4 and a first water supply outlet 5 are sequentially arranged on the first spherical end socket 2, a first heating steam inlet 9 is arranged on the upper surface of the shell 22, a first drainage outlet 1 is arranged on the lower surface of the shell 22, and a heat exchange tube a24 is arranged on one side, close to the first spherical end socket 2, in the shell 22; the heat exchange tube a24 is internally provided with a superheated steam cooling section A part 7 and a superheated steam cooling section B part 12, the outsides of the superheated steam cooling section A part 7 and the superheated steam cooling section B part 12 are provided with a steam cooling section cladding 11, and the heat exchange tube a24 is provided with a superheated steam cooling section A part outlet 8 and a superheated steam cooling section B part inlet 10.
U tube heat exchanger b includes: the shell 14, a part outlet 15 of the superheated steam cooling section B, a tube plate B16, a third heating steam inlet 17, a second manhole 18, a second spherical end socket 19, a third heating steam outlet 20, a part inlet 21 of the superheated steam cooling section A and a heat exchange tube B23;
the second spherical end socket 19 is connected with the other end of the shell 22 through a tube plate B16, a third heating steam inlet 17, a second manhole 18 and a third heating steam outlet 20 are sequentially arranged on the second spherical end socket 19, a heat exchange tube B23 is arranged on one side, close to the second spherical end socket 19, in the shell 22, a cladding 14 is arranged on the outer side of the heat exchange tube B23, and a part-A inlet 21 of the superheated steam cooling section and a part-B outlet 15 of the superheated steam cooling section are reserved on the heat exchange tube B23.
In the U-tube heat exchanger a and the U-tube heat exchanger B, the outlet 8 of the part A of the superheated steam cooling section is connected with the inlet 21 of the part A of the superheated steam cooling section through a steam channel 13, and the outlet 15 of the part B of the superheated steam cooling section is connected with the inlet 10 of the part B of the superheated steam cooling section through the steam channel 13. The first heating steam inlet 9 is communicated with the superheated steam cooling section A part 7, the superheated steam cooling section A part outlet 8 is connected with the superheated steam cooling section A part inlet 21 through a steam channel 13, and the superheated steam cooling section B part outlet 15 is connected with the superheated steam cooling section B part inlet 10 through the steam channel 13.
Example 1
The utility model discloses its work flow does: the heating steam of the U-tube heat exchanger a enters the superheated steam cooling section A part 7 through the first heating steam inlet 9, is cooled by feed water in the heat exchange tube a24, flows out through the outlet 8 of the part A of the superheated steam cooling section A, flows into the steam inlet (namely the inlet 21 of the part A of the superheated steam cooling section A) of the U-tube heat exchanger B through the steam channel 13, is heated by the heating steam 3 in the heat exchange tube B23 in the U-tube heat exchanger B, flows out from the steam outlet (namely the outlet 15 of the part B of the superheated steam cooling section B) of the U-tube heat exchanger B, flows into the inlet 10 of the part B of the superheated steam cooling section B of the U-tube heat exchanger a through the steam channel 13, and enters the condensation section of the U-tube heat exchanger after being cooled by the feed water; and the heating steam 3 in the heat exchange tube of the U-tube heat exchanger flows out from the heating steam outlet after being cooled and enters the next-stage heat exchanger for continuous heat exchange.
As shown in fig. 3, compared with the conventional high-pressure heater system, the steam cooler is reduced in this embodiment, HP1 is a first high-pressure heater, HP2 is a second high-pressure heater, HP3 is a third high-pressure heater, HP1 is a novel high-pressure heater, HP1 combines the steam cooler and No.1 high-pressure heater into one, during operation, heating steam 3 firstly enters HP1, then steam cooled by heat exchange tubes in HP1 is reheated, heating steam 3 is cooled during the process, then cooled heating steam 3 enters HP3, steam 1 is heated by steam 3, the temperature is raised, and the steam enters superheated steam cooling section B12 again to continue to heat water fed in the heat exchange tubes. The original ZL (steam cooler) is heat exchange of steam and feed water, the heat exchange of the steam and the steam is carried out after improvement, a steam medium outside the pipe is the steam after heat exchange of HP1, and a medium inside the pipe is heating steam 3.
The above description is only the preferred embodiments of the present invention, and these embodiments are all based on the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A novel high pressure heater comprising: the device comprises a first spherical end socket (2) and a shell (22), wherein the first spherical end socket (2) is connected with one end of the shell (22) through a tube plate A (6), a first water supply inlet (3), a first manhole (4) and a first water supply outlet (5) are sequentially arranged on the first spherical end socket (2), a first heating steam inlet (9) is arranged on the upper surface of the shell (22), a first drainage outlet (1) is arranged on the lower surface of the shell (22), and a heat exchange tube a (24) is arranged on one side, close to the first spherical end socket (2), in the shell (22);
it is characterized by also comprising: the device comprises a superheated steam cooling section A part (7), a superheated steam cooling section A part outlet (8), a superheated steam cooling section B part inlet (10), a steam cooling section cladding (11), a superheated steam cooling section B part (12), a steam channel (13), a cladding (14), a superheated steam cooling section B part outlet (15), a tube plate B (16), a third heating steam inlet (17), a second manhole (18), a second spherical end socket (19), a third heating steam outlet (20), a superheated steam cooling section A part inlet (21) and a heat exchange tube B (23);
a superheated steam cooling section A part (7) and a superheated steam cooling section B part (12) are arranged in a heat exchange tube a (24), a steam cooling section cladding (11) is arranged on the outer sides of the superheated steam cooling section A part (7) and the superheated steam cooling section B part (12), an outlet (8) of the superheated steam cooling section A part and an inlet (10) of the superheated steam cooling section B part are reserved on the heat exchange tube a (24), a second spherical end socket (19) is connected with the other end of a shell (22) through a tube plate B (16), a third heating steam inlet (17), a second manhole (18) and a third heating steam outlet (20) are sequentially arranged on the second spherical end socket (19), a heat exchange tube B (23) is arranged on one side, close to the second spherical end socket (19), in the shell (22), a cladding (14) is arranged on the outer side of the heat exchange tube B (23), and a part inlet (21) of the superheated steam cooling section A part and a part outlet of the superheated steam cooling section B And the outlet (8) of the part A of the superheated steam cooling section is connected with the inlet (21) of the part A of the superheated steam cooling section through a steam channel (13), and the outlet (15) of the part B of the superheated steam cooling section is connected with the inlet (10) of the part B of the superheated steam cooling section through the steam channel (13).
2. A new high-pressure heater according to claim 1, characterized in that the first heating steam inlet (9) is connected to the superheated steam cooling section a section (7).
3. A new high-pressure heater according to claim 1, characterized in that the steam enters the inlet (21) of the cooling section a of superheated steam from the outlet (8) of the cooling section a of superheated steam through the steam channel (13).
4. A new high-pressure heater according to claim 1, characterized in that the steam enters the inlet (10) of the section B of the superheated steam cooling section from the outlet (15) of the section B of the superheated steam cooling section through the steam channel (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021601437.8U CN213207818U (en) | 2020-08-05 | 2020-08-05 | Novel high-pressure heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021601437.8U CN213207818U (en) | 2020-08-05 | 2020-08-05 | Novel high-pressure heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213207818U true CN213207818U (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021601437.8U Active CN213207818U (en) | 2020-08-05 | 2020-08-05 | Novel high-pressure heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213207818U (en) |
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2020
- 2020-08-05 CN CN202021601437.8U patent/CN213207818U/en active Active
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