CN212274680U - Heat exchange equipment and indirect air cooling system - Google Patents
Heat exchange equipment and indirect air cooling system Download PDFInfo
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- CN212274680U CN212274680U CN202021321451.2U CN202021321451U CN212274680U CN 212274680 U CN212274680 U CN 212274680U CN 202021321451 U CN202021321451 U CN 202021321451U CN 212274680 U CN212274680 U CN 212274680U
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- 238000001816 cooling Methods 0.000 title claims abstract description 49
- 238000012546 transfer Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 208000001034 Frostbite Diseases 0.000 abstract description 3
- 238000010128 melt processing Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000007710 freezing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000008014 freezing Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 238000010977 unit operation Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012802 pre-warming Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a heat exchange equipment and indirect air cooling system, heat exchange equipment includes heat transfer device and warm braw device, and heat transfer device includes a plurality of heat transfer units, and the heat transfer unit is the hollow columnar structure that closes by a louver and two heat exchangers and form, and the louver of heat transfer unit connects gradually and forms heat transfer device's outer anchor ring; the hot-blast air device includes trunk line, annular air duct and a plurality of air feed pipeline, be connected with the heater on the trunk line, the trunk line is linked together with annular air duct, annular air duct sets up in heat transfer device, air feed pipeline's quantity is less than or equal to heat transfer unit's quantity, each air feed pipeline sets up respectively in a heat transfer unit, be equipped with a plurality of exhaust vents on the air feed pipeline, and air feed pipeline's first end seals, air feed pipeline's second end stretches out heat transfer unit and annular air duct and is linked together. The utility model discloses can warm up in advance, prevent frostbite or ice-melt processing to the heat exchanger, effectively solve the easy problem that freezes of severe cold district heat exchanger.
Description
Technical Field
The utility model relates to a power generation technical field, in particular to indirect air cooling system of indirect air cooling system that heat transfer equipment and include this heat transfer equipment.
Background
The surface type indirect air cooling system has the advantages of water saving, energy saving, wind resistance, small influence on a vacuum system and the like, and is widely applied to a plurality of thermal generator sets, particularly in coal-rich alpine regions. However, when the ambient temperature is low, the circulating water in the finned tubes of the heat exchanger of the indirect air cooling system is easy to freeze to cause the bursting of the finned tubes, and the water circulation interruption and the shutdown of the indirect air cooling system and the unit can be caused in severe cases. And the freezing damage of the finned tubes of the heat exchanger is difficult in repair technology, large in workload, long in time and great in loss, so that the problem of preventing freezing of the heat exchanger of the indirect air cooling system is very important to solve.
At present, the anti-freezing problem of a heat exchanger of an indirect air cooling system is mainly started from the aspects of enhancing parameter monitoring, optimizing an operation mode, increasing anti-freezing control logic of the indirect air cooling system and the like of operators, but the modes have higher requirements on the operation level of the operators and can not effectively solve the problem. Meanwhile, the existing modes for conveying hot air to the heat exchanger are roughly divided into two types, one type is that the hot air with slightly high temperature in the air cooling tower is directly utilized, but the anti-freezing effect of the method is not obvious because the air temperature in the heat exchange equipment is not high enough; the other type is to use hot air with higher outlet temperature of the air preheater, the method occupies excessive hot air at the outlet of the air preheater, energy waste is caused, and long-term use of the hot air at the outlet of the air preheater has certain influence on the operation of the boiler, and the stability of a unit is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can carry out warmly in advance, prevent frostbite or the indirect heating equipment that ice-melt was handled to the heat exchanger.
Another object of the utility model is to provide an indirect air cooling system with above-mentioned indirect air cooling system of indirect heat exchange equipment to guarantee the stability of unit operation.
In order to achieve the above object, the utility model provides a heat exchange device, it is used for indirect air cooling system, heat exchange device includes:
the heat exchange device comprises a plurality of heat exchange units, the heat exchange units are sequentially connected to form a ring shape, each heat exchange unit is of a hollow columnar structure formed by enclosing a louver and two heat exchangers, and the louvers of the heat exchange units are sequentially connected to form an outer ring surface of the heat exchange device;
the heating installation, it includes trunk line, annular air duct and a plurality of air feed pipeline, be connected with the heater on the trunk line, the first end of trunk line with annular air duct is linked together, annular air duct set up in the heat transfer device, the quantity of air feed pipeline is less than or equal to the quantity of heat transfer unit, each the air feed pipeline sets up respectively in one in the heat transfer unit, be equipped with a plurality of exhaust vents on the air feed pipeline, just the first end of air feed pipeline is sealed, the second end of air feed pipeline stretches out the heat transfer unit with annular air duct is linked together.
The heat exchange equipment as described above, wherein the main pipeline is connected with a fan, and the fan is located between the annular air duct and the heater.
The heat exchange equipment is characterized in that a main pipe valve is arranged on the main pipe, and the main pipe valve is positioned between the fan and the heater.
The heat exchange device comprises a main pipe, a heater, a fan, a main pipe and a bypass pipe, wherein the main pipe is connected with the heater and the fan through the bypass pipe.
The heat exchange equipment as described above, wherein a bypass valve is connected to the bypass pipeline.
The heat exchange device as described above, wherein the second end of the main pipe is connected with a filter screen.
The heat exchange equipment is characterized in that each air supply pipeline is connected with an air supply valve.
The heat exchange device as described above, wherein the heater is a shell-and-tube heat exchanger.
The heat exchange equipment comprises a main pipeline, an annular air duct, a plurality of air supply pipelines and a heat insulation layer, wherein the main pipeline, the annular air duct and the air supply pipelines are all coated with heat insulation layers.
The utility model also provides an indirect air cooling system, wherein, the indirect air cooling system comprises;
a boiler;
the tail flue of the boiler extends into the air cooling tower;
the heat exchange equipment is arranged below the air cooling tower, the second end of the main pipeline of the heat exchange equipment extends into the air cooling tower, and the heater of the heat exchange equipment is communicated with the tail flue of the boiler.
Compared with the prior art, the utility model has the advantages as follows:
the heat exchange equipment of the utility model can heat cold air into hot air to be sprayed into the heat exchange unit by arranging the warm air device, not only can pre-warm the heat exchanger before water feeding to prevent freezing in the water feeding process, but also can prevent the heat exchanger finned tube from frost cracking in extreme cold weather when the heat exchanger operates stably, thereby ensuring the safe and stable operation of the unit; and when icing occurs on the heat exchanger due to circulating water leakage and the like, the icing part is heated for deicing, so that the problem that the heat exchanger is easy to frost crack in an alpine region is effectively solved.
The utility model discloses an indirect air cooling system has above-mentioned indirect heat exchange equipment's whole advantages, and this indirect air cooling system can guarantee the stability of unit operation.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
FIG. 1 is a schematic view of a structure of a heat exchange device in a use state;
FIG. 2 is a schematic structural view of the heating apparatus;
FIG. 3 is a schematic view of the structure of the air supply duct;
fig. 4 is a schematic view of the assembly structure of the air supply duct and the two heat exchangers.
The reference numbers illustrate:
100. a heat exchange device;
110. a heat exchange unit; 111. a heat exchanger; 112. a blind window;
200. a warm air device;
210. a main pipeline; 211. a heater; 212. a fan; 213. a main pipe valve; 214. a bypass conduit; 2141. a bypass valve; 215. a filter screen;
220. an annular air duct;
230. an air supply duct; 231. an air outlet; 232. an air supply valve; 2301. a first end; 2302. a second end;
300. and (4) an air cooling tower.
Detailed Description
In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings. Where the adjective or adverbial modifiers "inner" and "outer" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 and fig. 2, the utility model provides a heat exchange device, its indirect air cooling system that is used for thermal generator set, this heat exchange device include heat transfer device 100 and warm braw device 200, wherein:
the heat exchange device 100 comprises a plurality of heat exchange units 110, the plurality of heat exchange units 110 are sequentially connected in a ring shape, that is, the plurality of heat exchange units 110 are sequentially connected end to form the ring-shaped heat exchange device 100, the heat exchange unit 110 is a hollow columnar structure formed by enclosing a louver 112 and two heat exchangers 111, that is, the heat exchange unit 110 is in a hollow triangular prism structure, the louver 112 and the two heat exchangers 111 respectively form three surfaces of the heat exchange unit 110, the louver 112 of each heat exchange unit 110 is sequentially connected to form an outer annular surface of the heat exchange device 100, the heat exchanger 111 of each heat exchange unit 110 is arranged inside the outer annular surface formed by connecting the louvers 112, wherein the connection mode between two adjacent louvers 112 and the enclosing mode between the louver 112 and the two heat exchangers 111 of each heat exchange unit 110 are the prior art, and are not described herein again;
the warm air device 200 includes a main pipe 210, an annular air duct 220 and a plurality of air supply pipes 230, the main pipe 210 is connected with a heater 211, the heater 211 can heat cold air entering the main pipe 210 to form hot air, a first end of the main pipe 210 is communicated with the annular air duct 220, specifically, the first end of the main pipe 210 is welded to the annular air duct 220, and the inside of the main pipe 210 is communicated with the inside of the annular air duct 220, so that the hot air can enter the annular air duct 220 through the main pipe 210, the annular air duct 220 is disposed in the heat exchanging device 100, with such a structure, the volume of the heat exchanging device is not changed, and the normal use of the heat exchanging device 100 is not affected, the number of the air supply pipes 230 is less than or equal to the number of the heat exchanging units 110, in the embodiment shown in fig. 1, the number of the air supply pipes 230 is equal to the, the air supply pipes 230 may also be provided with a proper number of air supply pipes 230 according to the actual use requirement, preferably, the air supply pipes 230 are uniformly distributed along the circumference of the annular air duct 220, and each air supply pipe 230 is respectively provided in one heat exchange unit 110, as shown in fig. 3 and 4, the air supply pipe 230 is provided with a plurality of air outlet holes 231, preferably, the plurality of air outlet holes 231 are uniformly distributed on the outer circumferential surface of the air supply pipe 230 facing the two heat exchangers 111, wherein the number of the air outlet holes 231 can be set according to the actual use requirement, for example, when the ambient temperature is low, a larger number of air outlet holes 231 can be provided, when the ambient temperature is relatively increased, a smaller number of air outlet holes 231 can be provided, which is not described herein again, and the first end 2301 of the air supply pipe 230 is closed, and the second end of the air supply pipe 230 extends out of the heat exchange unit 110 to communicate with the annular air duct 220, so that the warm air in the annular air duct 220 can enter the, so as to increase the inlet air temperature of the heat exchanger 111, thereby realizing the purpose of pre-warming, anti-freezing or de-icing the heat exchanger 111 when the environmental temperature is lower.
When the heat exchanger is used, as shown in fig. 1 and fig. 2, when the temperature is low in winter, cold air enters the main pipeline 210 from the second end of the main pipeline 210, and is heated by the heater 211 to form hot air, the hot air enters the annular air duct 220 through the first end of the main pipeline 210 and enters each air supply pipeline 230 through the annular air duct 220, and finally the hot air is sprayed into the heat exchange unit 110 through the air outlet 231 on the air supply pipeline 230 to pre-warm the heat exchanger 111 before water is supplied to the heat exchanger, in the stable operation process, the sprayed hot air can prevent the finned tubes of the heat exchanger 111 from being frost-cracked in extreme cold weather, and when the heat exchanger 111 is frozen due to leakage of circulating water and the like, the sprayed hot air can heat and melt ice on the frozen part.
The heat exchange equipment provided by the utility model can heat cold air into hot air to be sprayed into the heat exchange unit 110 by arranging the warm air device 200, not only can pre-warm the heat exchanger 111 before water feeding to prevent freezing in the water feeding process, but also can prevent the heat exchanger 111 finned tube from frost cracking in extreme cold weather when the heat exchanger 111 is stably operated, thereby ensuring the safe and stable operation of the unit; and when icing occurs on the heat exchanger 111 due to circulating water leakage and the like, the icing part is heated for deicing, so that the problem that the heat exchanger 111 is easy to frost and crack in alpine regions is effectively solved.
Further, the outside of main pipeline 210, annular wind channel 220 and each air feed pipe 230 all has the cladding to have the heat preservation, and the heat preservation is made by insulation material, and insulation material can be polyurethane foam, aerogel felt or glass wool etc. to avoid hot-air to dispel the heat in the transmission process, thereby ensure that hot-air can spray into in heat transfer unit 110 with higher temperature.
The utility model discloses an in the embodiment, in order to improve the efficiency in hot-air gets into annular wind channel 220, as shown in FIG. 1 and FIG. 2, be connected with fan 212 on trunk line 210, fan 212 is located between annular wind channel 220 and the heater 211, and the hot-air that forms through the heating of heater 211 can get into annular wind channel 220 under the guide of fan 212 in to make in the entering annular wind channel 220 that hot-air can be quick and smooth and easy, wherein, the preferred frequency conversion fan that adopts of fan 212.
Further, be equipped with the main pipe valve 213 on trunk line 210, the main pipe valve 213 is located between fan 212 and the heater 211, the flow area that main pipe valve 213 can control trunk line 210 is responsible for, when ambient temperature is higher, the accessible is responsible for valve 213 and reduces to zero the flow area of trunk line 210, be about to trunk line 210 and close, at this moment, warm braw device 200 will stop the operation, hot-air can not spout in heat exchange unit 110, when ambient temperature is lower, the accessible is responsible for valve 213 and increases the flow area of trunk line 210 to the biggest, be about to trunk line 210 opens completely, at this moment, warm braw device 200 will start the operation, in order to warm in advance heat exchanger 111, prevent frostbite or ice-melt processing.
Further, the main pipe 210 is connected with a bypass pipe 214, the bypass pipe 214 is located between the heater 211 and the fan 212, the bypass pipe 214 can also be communicated with an outlet of an air preheater of the boiler, when the heater 211 cannot normally work due to reasons, hot air of the boiler can be introduced into the main pipe through the bypass pipe 214, the hot air is sprayed into the heat exchange unit 110 through the main pipe, the annular air duct 220 and the air supply pipe 230 in sequence, so as to pre-warm, prevent freezing or melt ice for the heat exchanger 111, after the fault of the heater 211 is relieved, the bypass pipe 214 is disconnected from the outlet of the air preheater of the boiler, the heater 211 can be reused to heat external cold air, the hot air at the outlet of the air preheater is not required to be used for a long time, and the stability of the operation of the heat exchange equipment in extremely cold weather is ensured.
Still further, a bypass valve 2141 is connected to the bypass pipe 214, and the bypass valve 2141 can control the on/off of the bypass pipe 214, so that the operation of controlling the on/off of the bypass pipe 214 from the outlet of the air preheater of the boiler becomes simple and convenient, the bypass valve 2141 is closed in a state where the heater 211 is normally operated, the flow area of the bypass pipe 214 is zero, the bypass valve 2141 is opened in a state where the heater 211 is not normally operated due to a cause, the flow area of the bypass pipe 214 is maximized, and the hot air of the boiler can be introduced into the main pipe.
In an embodiment of the present invention, as shown in fig. 1, the second end of the main pipe 210 is connected to a filter screen 215, and the filter screen 215 can filter out impurities in the cold air to ensure that the cold air is heated by the heater 211 and is air, thereby ensuring the air supply efficiency of the heater 200.
Further, as shown in fig. 2, each air supply pipe 230 is connected to an air supply valve 232, and the air supply valves 232 can control the on/off of the air supply pipes 230, so that when in actual use, a proper number of air supply pipes 230 can be opened as needed.
Further, the heater 211 is a shell-and-tube heat exchanger which can be used at high temperature and high pressure, thereby ensuring the service life of the heater 211.
The utility model also provides an indirect air cooling system, it includes the boiler, air cooling tower 300 and indirect heat exchange equipment of above-mentioned, wherein, the concrete structure of boiler is prior art, no longer describe herein, the afterbody flue of boiler stretches into in air cooling tower 300, indirect heat exchange equipment sets up in the below of air cooling tower 300, wherein, indirect heat exchange equipment and the concrete fixed mode of air cooling tower 300, the mode that the afterbody flue of boiler stretches into in air cooling tower 300 is prior art, no detailed description is given here, the second end of main pipe 210 of indirect heat exchange equipment stretches into in air cooling tower 300, so that the cold air in air cooling tower 300 can pass through the second end of main pipe 210 and get into in main pipe 210, indirect heat exchange equipment's heater 211 is linked together with the afterbody flue of boiler, so that the hot flue gas that the boiler discharges exchanges heat with the cold air in air cooling tower 300 in heater 211, heat the cold air into hot air, preferably, the tail flue communicated with the heater 211 is located at a position behind the desulfurization tower and in front of the chimney in the air cooling tower 300.
The utility model discloses an indirect air cooling system includes foretell indirect cooling equipment, consequently, this indirect air cooling system has above-mentioned indirect cooling equipment's whole advantages, and this indirect air cooling system can guarantee the stability of unit operation.
As shown in fig. 1 and 2, when in use, air in the air cooling tower 300 is filtered by the filter screen 215, enters the heater 211 and exchanges heat with high-temperature flue gas discharged from a tail flue of a boiler to form hot air, the hot air enters the annular air duct 220 through the main duct 210 under the action of the fan 212, and uniformly enters each air supply duct 230 through the annular air duct 220, and finally is sprayed into the triangular prism-shaped heat exchange unit 110 enclosed by the heat exchanger 111 and the louver 112 through each air supply duct 230, so that the inlet air temperature of the heat exchanger 111 is increased; when the temperature is lower in winter, the heat exchanger 111 is pre-warmed before water is supplied to the heat exchanger, so that icing in the water supply process is prevented; during stable operation, the finned tubes of the heat exchanger 111 in extreme cold weather are prevented from frost cracking, and the safe and stable operation of the unit is ensured; when icing occurs on the heat exchanger 111 due to circulating water leakage and the like, the icing part is heated for deicing;
in addition, the bypass pipeline 214 is arranged to be communicated with the outlet of the air preheater of the boiler, when the air heater 211 cannot work normally, hot air discharged from the outlet of the air preheater is sprayed into the heat exchange unit 110 through the bypass pipeline 214 to improve the air temperature at the inlet of the heat exchanger 111, after the fault of the heater 211 is relieved, the bypass pipeline 214 is disconnected from the outlet of the air preheater of the boiler, the heater 211 can be reused to heat the outside cold air, the outlet hot air of the air preheater is not required to be used for a long time, and therefore the stability of the indirect air cooling system in operation is guaranteed.
To sum up, the heat exchange equipment of the utility model can heat cold air into hot air to be sprayed into the heat exchange unit by arranging the warm air device, not only can pre-warm the heat exchanger before water feeding to prevent freezing in the water feeding process, but also can prevent the heat exchanger finned tube from frost cracking in extreme cold weather when the heat exchanger operates stably, thereby ensuring the safe and stable operation of the unit; and when icing occurs on the heat exchanger due to circulating water leakage and the like, the icing part is heated for deicing, so that the problem that the heat exchanger is easy to frost crack in an alpine region is effectively solved.
The utility model discloses an indirect air cooling system has above-mentioned indirect heat exchange equipment's whole advantages, and this indirect air cooling system can guarantee the stability of unit operation.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention. Moreover, it should be noted that the components of the present invention are not limited to the above-mentioned integral application, and various technical features described in the present invention can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention of the present invention.
Claims (10)
1. A kind of heat-exchanging equipment, it is used for indirect air cooling system, characterized by, the said heat-exchanging equipment includes:
the heat exchange device comprises a plurality of heat exchange units, the heat exchange units are sequentially connected to form a ring shape, each heat exchange unit is of a hollow columnar structure formed by enclosing a louver and two heat exchangers, and the louvers of the heat exchange units are sequentially connected to form an outer ring surface of the heat exchange device;
the heating installation, it includes trunk line, annular air duct and a plurality of air feed pipeline, be connected with the heater on the trunk line, the first end of trunk line with annular air duct is linked together, annular air duct set up in the heat transfer device, the quantity of air feed pipeline is less than or equal to the quantity of heat transfer unit, each the air feed pipeline sets up respectively in one in the heat transfer unit, be equipped with a plurality of exhaust vents on the air feed pipeline, just the first end of air feed pipeline is sealed, the second end of air feed pipeline stretches out the heat transfer unit with annular air duct is linked together.
2. The heat exchange device of claim 1,
the main pipeline is connected with a fan, and the fan is located between the annular air duct and the heater.
3. The heat exchange device of claim 2,
be equipped with the person in charge valve on the trunk line, be located the fan with between the heater.
4. The heat exchange device of claim 2,
and a bypass pipeline is connected to the main pipeline and is positioned between the heater and the fan.
5. The heat exchange device of claim 4,
and the bypass pipeline is connected with a bypass valve.
6. The heat exchange device of claim 1,
the second end of the main pipeline is connected with a filter screen.
7. The heat exchange device of claim 1,
and each air supply pipeline is connected with an air supply valve.
8. The heat exchange device of claim 1,
the heater is a shell-and-tube heat exchanger.
9. The heat exchange device of any one of claims 1 to 8,
the main pipeline, the annular air duct and the air supply pipelines are all coated with heat insulation layers.
10. An indirect air cooling system, characterized in that the indirect air cooling system comprises;
a boiler;
the tail flue of the boiler extends into the air cooling tower;
the heat exchange device according to any one of claims 1 to 9, wherein the heat exchange device is disposed below the air cooling tower, the second end of the main pipe of the heat exchange device extends into the air cooling tower, and the heater of the heat exchange device is communicated with the tail flue of the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021321451.2U CN212274680U (en) | 2020-07-08 | 2020-07-08 | Heat exchange equipment and indirect air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021321451.2U CN212274680U (en) | 2020-07-08 | 2020-07-08 | Heat exchange equipment and indirect air cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212274680U true CN212274680U (en) | 2021-01-01 |
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ID=73900239
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021321451.2U Active CN212274680U (en) | 2020-07-08 | 2020-07-08 | Heat exchange equipment and indirect air cooling system |
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| Country | Link |
|---|---|
| CN (1) | CN212274680U (en) |
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2020
- 2020-07-08 CN CN202021321451.2U patent/CN212274680U/en active Active
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