CN209763125U - Wet flue gas desulfurization and de-whitening integrated chimney - Google Patents
Wet flue gas desulfurization and de-whitening integrated chimney Download PDFInfo
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- CN209763125U CN209763125U CN201920223343.2U CN201920223343U CN209763125U CN 209763125 U CN209763125 U CN 209763125U CN 201920223343 U CN201920223343 U CN 201920223343U CN 209763125 U CN209763125 U CN 209763125U
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- flue
- flue gas
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- gas desulfurization
- heat exchange
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Abstract
The utility model discloses a white integration chimney is taken off in wet flue gas desulfurization, including wet flue gas desulfurization pipeline, natural gas stove flue gas pipeline, still include the chimney body of integral type, three independent passageway is separated into along length direction to the chimney body, be the wet flue gas desulfurization flue respectively, natural gas flue and personnel's equipment passageway, natural gas stove flue gas pipeline exit end is connected with flexible takeover one end, the flexible takeover other end extends into the wet flue gas desulfurization flue, be equipped with the heat exchange tube in the wet flue gas desulfurization flue, heat exchange tube one end is connected with the one end that the flexible takeover extended into the wet flue gas desulfurization flue, the heat exchange tube other end communicates with the natural gas flue, wet flue gas desulfurization flue line is connected with the wet flue gas desulfurization flue, the heat exchange tube is located the connector top setting. The wet desulphurization and de-whitening integrated chimney can effectively eliminate the white steam emitted by the wet desulphurization flue and reduce the corrosion of condensed water on the inner wall of the flue.
Description
The technical field is as follows:
The utility model relates to a wet flue gas desulfurization takes off white integration chimney.
Background art:
because the wet desulphurization flue gas is saturated water vapor at about 50 ℃, the chimney can emit white steam due to condensed water when the temperature is reduced in autumn and winter, and especially the white steam is emitted when the temperature is reduced to below 15 ℃. In addition, according to the national regulation principle, the gas fuel positive pressure furnace and the solid fuel negative pressure furnace can not share one chimney, so that the natural gas furnace flue gas flue and the wet desulphurization flue gas are mutually independent. After the traditional wet desulphurization flue gas treatment, the temperature of the flue gas is less than or equal to 50 ℃, the humidity is in a saturated state, when the temperature of the flue gas is reduced in the conveying process of a flue and a chimney, a large amount of condensed water is separated out, the separated condensed water contains a large amount of acidic substances, such as sulfuric acid and the like, the corrosivity is extremely high under the condition of 50 ℃, and a plurality of unit power plants rebuild the chimney or regularly carry out anticorrosion operation on the flue and the chimney due to the corrosion.
The utility model has the following contents:
The utility model aims to solve the technical problem that a wet flue desulfurization and de-whitening integrated chimney capable of effectively eliminating the white steam emitted by a wet flue desulfurization flue and reducing the condensed water to corrode the inner wall of the flue is provided.
The technical solution of the utility model is, the utility model provides a wet flue gas desulfurization takes off white integration chimney, including wet flue gas desulfurization flue gas pipeline, natural gas stove flue gas pipeline, still include the chimney body of integral type, three independent passageway is separated into along length direction to the chimney body, be the wet flue gas desulfurization flue respectively, natural gas flue and personnel's equipment passageway, natural gas stove flue gas pipeline exit end is connected with flexible takeover one end, the flexible takeover other end extends to get into the wet flue gas desulfurization flue, be equipped with the heat exchange tube in the wet flue gas desulfurization flue, heat exchange tube one end is connected with the one end that the flexible takeover extended to get into the wet flue gas desulfurization flue, the heat exchange tube other end communicates with the natural gas flue, wet flue gas desulfurization flue gas pipeline is connected with the wet flue gas desulfurization flue, the.
Compared with the prior art after the structure more than adopting, the utility model has the advantages of it is following: because the flue gas temperature of the natural gas furnace can reach more than 180 ℃, the flue gas is sent to the heat exchange tube arranged in the wet desulphurization flue gas flue in order to increase the wet desulphurization flue gas temperature through the flue gas pipeline of the natural gas furnace, the problem that the chimney emits white steam due to temperature reduction in autumn and winter is effectively solved, and the novel chimney has no other power consumption, is energy-saving and environment-friendly, and well solves the problem.
Preferably, the side wall of the wet desulphurization flue is provided with a connector, the connector is connected with one end of the flexible connecting pipe through a flange, and the connector is also connected with the heat exchange pipe through a flange.
furthermore, the heat exchange tube is formed by connecting a straight tube and an expansion bend.
description of the drawings:
Fig. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings and the detailed description below:
as shown in figure 1, the integrated chimney with wet desulphurization and de-whitening comprises a wet desulphurization flue gas pipeline 1, a natural gas furnace flue gas pipeline 2, the natural gas furnace flue gas pipeline 2 is connected with a natural gas furnace, the wet desulphurization flue gas pipeline 1 is connected with a wet desulphurization environmental protection device, the innovation point is that the integrated chimney also comprises an integrated chimney body 3, the chimney body 3 is divided into three independent channels along the length direction, the three independent channels are a wet desulphurization flue 31, a natural gas flue 32 and a personnel equipment channel 33 respectively, the three independent channels surround to form a square chimney body, in order to improve the effect, the wet desulphurization flue 31 occupies more than half of the whole chimney body, the natural gas flue 32 and the personnel equipment channel 33 equally divide the rest area, the outlet end of the natural gas furnace flue gas pipeline 2 is connected with one end of a flexible connecting pipe 4 through a flange, the other end of the flexible connecting pipe 4, be equipped with heat exchange tube 5 in the wet flue gas desulfurization flue 31, the one end that heat exchange tube 5 one end and flexible takeover 4 extended into the wet flue gas desulfurization flue is connected, the heat exchange tube 5 other end and natural gas flue 32 intercommunication, wet flue gas desulfurization pipeline 1 is connected with wet flue gas desulfurization flue 31, heat exchange tube 5 is located the connector top setting that wet flue gas desulfurization pipeline 1 and wet flue gas desulfurization flue 31 are connected.
As an improvement, the side wall of the wet desulphurization flue is provided with a circular connector, the connector is connected with one end of the flexible connecting pipe through a flange, and the connector is also connected with the heat exchange pipe through a flange. The wet desulphurization flue gas pipeline penetrates through the side wall of the wet desulphurization flue to be communicated with the wet desulphurization flue, and the penetration part is sealed by concrete. The natural gas furnace flue gas pipeline is in flexible connection with the wet desulphurization flue, the expansion bend is a part of a flue gas heat exchange system, the flue gas heat exchange system is a heat exchange tube, and high-temperature flue gas of the natural gas furnace enters the wet desulphurization flue and is heated by the heat exchange tube. In order to ensure safety and prevent the system from being damaged by expansion with heat and contraction with cold, the flexible connection is arranged at the position where high-temperature natural gas and flue gas enter the chimney, two expansion bends are designed on the heat exchange tube in the wet desulphurization flue, so that the problem of expansion with heat and contraction with cold is solved, and the heat exchange tube is transversely arranged as much as possible. The temperature of the wet desulphurization flue gas is not high, but has certain corrosivity, and the temperature of the natural gas flue gas is higher although the natural gas flue gas is not corrosive, so that the natural gas flue gas is made of common carbon steel during design and is externally insulated; the flue of wet flue gas desulfurization is glass steel material (acid and alkali-resistance), and the integration chimney body is square concrete structure, and the overall modeling is the cube structure, and the centre falls into three independent passageway, and its one is the wet flue desulfurization, and its two are natural gas stove flues, and its three personnel's equipment passageway (on-line monitoring system mounted position, on-line sample connection and reservation). Building insulating bricks and refractory bricks on the inner wall of the chimney natural gas flue, coating an acid-proof resin layer on the inner wall of the chimney wet desulphurization flue for corrosion prevention, and building acid-proof bricks for corrosion prevention; the material of the heat exchange system in the integrated chimney is corrosion-resistant stainless steel, so that the service life of the equipment is ensured. The natural gas furnace flue is formed by pouring concrete, and the heat-insulating brick is stuck on the inner side and is made of silicate heat-insulating bricks.
As the wet desulphurization flue gas is saturated water vapor at about 50 ℃, the chimney can emit white steam due to the condensed water when the temperature is reduced in autumn and winter, and especially the white steam is emitted when the temperature is reduced to below 15 ℃. The natural gas furnace flue gas (200 ℃) is sent into the heat exchange system in the wet desulphurization flue gas independent flue, and the natural gas furnace flue gas temperature is about 200 ℃ dry and does not contain water vapor, so that the temperature of the wet desulphurization flue gas is greatly increased through the heat exchange system, the actual temperature of the wet desulphurization flue gas is above 80 ℃ of the saturated water vapor, and the phenomenon that white vapor is emitted from the outlet of the chimney due to condensed water is not generated. The novel integrated chimney solves the problems that the wet desulphurization chimney emits white steam in winter and is easy to corrode the inner wall, the needed materials are few, the cost is low, and the maintenance and the overhaul are convenient. The cubic appearance structure is beneficial to beautifying design, and the effect is ideal through practical use in the device.
The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. All the equivalent structures or equivalent flow changes made by using the contents of the specification and the attached drawings of the utility model are included in the patent protection scope of the utility model.
Claims (3)
1. The utility model provides a wet flue gas desulfurization takes off white integration chimney, includes wet flue gas desulfurization pipeline, natural gas stove flue gas pipeline, its characterized in that: still include the chimney body of integral type, three independent passageway is separated into along length direction to the chimney body, be wet flue gas flue and personnel's equipment passageway respectively, natural gas stove flue gas pipeline exit end is connected with flexible takeover one end, the flexible takeover other end extends into wet flue gas desulfurization flue, be equipped with the heat exchange tube in the wet flue gas desulfurization flue, heat exchange tube one end is connected with the one end that flexible takeover extended into wet flue gas desulfurization flue, the heat exchange tube other end and natural gas flue intercommunication, wet flue gas desulfurization flue pipeline is connected with the wet flue gas desulfurization flue, the heat exchange tube is located the connector top setting that wet flue gas desulfurization flue and wet flue are connected.
2. The integrated chimney for wet desulphurization and de-whitening according to claim 1, characterized in that: the side wall of the wet desulphurization flue is provided with a connector, the connector is connected with one end of the flexible connecting pipe through a flange, and the connector is also connected with the heat exchange pipe through a flange.
3. The integrated chimney for wet desulphurization and de-whitening according to claim 1, characterized in that: the heat exchange tube is formed by connecting a straight tube and an expansion bend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223343.2U CN209763125U (en) | 2019-02-22 | 2019-02-22 | Wet flue gas desulfurization and de-whitening integrated chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223343.2U CN209763125U (en) | 2019-02-22 | 2019-02-22 | Wet flue gas desulfurization and de-whitening integrated chimney |
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| CN209763125U true CN209763125U (en) | 2019-12-10 |
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| CN201920223343.2U Active CN209763125U (en) | 2019-02-22 | 2019-02-22 | Wet flue gas desulfurization and de-whitening integrated chimney |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899824A (en) * | 2019-02-22 | 2019-06-18 | 桐昆集团浙江恒盛化纤有限公司 | A kind of wet desulphurization takes off white integrative chimney |
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2019
- 2019-02-22 CN CN201920223343.2U patent/CN209763125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899824A (en) * | 2019-02-22 | 2019-06-18 | 桐昆集团浙江恒盛化纤有限公司 | A kind of wet desulphurization takes off white integrative chimney |
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