CN212039846U - Coal smoke denitration heat recovery device - Google Patents
Coal smoke denitration heat recovery device Download PDFInfo
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- CN212039846U CN212039846U CN201922051045.2U CN201922051045U CN212039846U CN 212039846 U CN212039846 U CN 212039846U CN 201922051045 U CN201922051045 U CN 201922051045U CN 212039846 U CN212039846 U CN 212039846U
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Abstract
The utility model provides a coal flue gas denitration heat recovery device belongs to coal flue gas denitration technical field, include: denitration section of thick bamboo, heat-resisting corrosion resistant layer, heat-conducting layer, insulating layer, bulk layer, advance the tobacco pipe, divide equally heat insulating board, catalysis board, constant temperature heater, adsorption plate, export, recovery structure, drain pipe, inlet tube, flue gas chamber, water cavity and the pipe of discharging fume. The utility model discloses a set up the recovery structure, make the device when carrying out the denitration, can retrieve the heat in the flue gas through retrieving the structure to the heat, coal flue gas gets into inside the flue gas chamber, and simultaneously, cold water gets into the water cavity from the inlet tube, flow into steam boiler from the drain pipe, and simultaneously, make coal flue gas flow through the route increase at the recovery structure, it is more abundant to make coal flue gas heat recovery, the flue gas chamber, water cavity fluid flow direction is opposite, when making the inside water of water cavity and flue gas intracavity portion carry out the heat exchange, there is the heat quantity difference all the time, it is more abundant to make the heat exchange carry out.
Description
Technical Field
The utility model relates to a coal flue gas denitration technical field particularly, relates to a coal flue gas denitration heat recovery unit.
Background
SO2 and NOx produced by the combustion of coal are the major pollutants responsible for the destruction of the atmosphere. At present, most coal-fired enterprises are provided with independent desulfurization and denitrification treatment equipment, but the treatment process has many problems, and basically the treatment is carried out on a single pollutant one by one, so that the process chain of flue gas purification is increased, and the investment and operation cost are increased;
in prior art, steam boiler is when burning the coal, and the coal flue gas direct discharge that produces, nitre and sulphur in the flue gas can the polluted environment in addition, and current denitrification facility is for retrieving the heat to the coal flue gas, causes the energy to run off, consequently, urgently needs a coal flue gas denitration heat reclamation device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of proposing in the background art to provide a coal flue gas denitration heat recovery unit.
In order to achieve the above object, the utility model provides a following technical scheme: a coal flue gas denitration heat recovery device, comprising: the denitration cylinder comprises a denitration cylinder, a heat-resistant and corrosion-resistant layer, a heat-conducting layer, a heat-insulating layer, a main body layer, a smoke inlet pipe, a smoke dividing and heat insulating plate, a catalytic plate, a constant temperature heater, an adsorption layer, an outlet, a recovery structure, a drain pipe, a water inlet pipe, a smoke cavity, a water cavity and a smoke exhaust pipe, wherein the inner wall of the denitration cylinder is fixedly connected with the heat-resistant and corrosion-resistant layer, the outer wall of the heat-resistant and corrosion-resistant layer is fixedly connected with the heat-conducting layer, the outer wall of the heat-conducting layer is fixedly connected with the heat-insulating layer, the outer wall of the heat-insulating layer is fixedly connected with the main body layer, the bottom end of the left side of the outer wall of the denitration cylinder is fixedly connected with the smoke inlet pipe, the top end of the inside of the denitration, the inside top fixed connection of a denitration section of thick bamboo is equipped with the adsorbed layer, denitration section of thick bamboo top fixed connection is equipped with the export, export top fixed connection is equipped with retrieves the structure, fixed connection is equipped with the flue gas chamber between the recovery structure, flue gas chamber outer wall fixed connection is equipped with the water cavity, flue gas chamber bottom and export fixed connection, it is equipped with the pipe of discharging fume to retrieve structure top fixed connection, and discharges fume pipe and flue gas chamber top fixed connection, it is equipped with the drain pipe to retrieve structure bottom left side fixed connection, and drain pipe and water cavity bottom fixed connection, it is equipped with the inlet tube to retrieve structure top left side fixed connection, and inlet tube and water cavity top fixed connection.
Preferably, the upper surface of the uniform-distribution heat insulation plate is provided with a plurality of small holes, and the small holes are arranged in a penetrating mode.
Preferably, the catalytic board is arranged in a honeycomb shape.
Preferably, the material of the adsorption layer is silica gel.
Preferably, the recovery structure is spirally arranged.
Preferably, the smoke chamber and the water chamber are opposite in fluid flow direction.
Preferably, the cross sections of the smoke cavity and the water cavity form a concentric circle structure.
The utility model provides a coal flue gas denitration heat reclamation device has following beneficial effect:
1. this coal smoke denitration heat reclamation device retrieves the structure through setting up, make the device when carrying out the denitration, can retrieve the heat through retrieving the structure with the heat in the flue gas, coal smoke gets into inside the flue gas chamber, and simultaneously, cold water gets into the water cavity from the inlet tube, flow into steam boiler from the drain pipe, and simultaneously, make coal smoke increase in the route of retrieving the structure and flowing through, it is more abundant to make coal smoke heat recovery, the flue gas chamber, water cavity fluid flow direction is opposite, when making the inside water of water cavity and flue gas intracavity portion carry out the heat exchange, there is the heat quantity difference all the time, make the heat exchange carry out more fully.
2. This coal smoke denitration heat reclamation device equallys divide the heat insulating board through the setting, makes the device when carrying out the denitration, and the high temperature in the denitration section of thick bamboo can not flow backwards, and the time heat is more concentrated.
3. This hot recovery unit of coal flue gas denitration makes the device when carrying out the denitration through setting up the adsorbed layer, and toxic gases such as SO3 that produce can adsorb through the adsorbed layer, can prevent the production of toxic gas.
Drawings
Fig. 1 is an overall sectional view of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a sectional view of the recycling structure of the present invention.
Figure 4 is the utility model discloses a denitration section of thick bamboo outer wall cross-sectional view.
In fig. 1 to 4, the corresponding relationship between the part names or lines and the reference numbers is:
the denitration device comprises a denitration cylinder-1, a heat-resistant corrosion-resistant layer-101, a heat conduction layer-102, a heat insulation layer-103, a main body layer-104, a smoke inlet pipe-2, an evenly-divided heat insulation plate-3, a catalytic plate-4, a constant temperature heater-5, an adsorption layer-6, an outlet-7, a recovery structure-8, a water outlet pipe-801, a water inlet pipe-802, a smoke cavity-803, a water cavity-804 and a smoke exhaust pipe-9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the utility model relates to a coal flue gas denitration heat recovery device, including: a denitration cylinder 1, a heat-resistant corrosion-resistant layer 101, a heat-conducting layer 102, a heat-insulating layer 103, a main body layer 104, a smoke inlet pipe 2, a uniform heat insulation plate 3, a catalytic plate 4, a constant temperature heater 5, an adsorption layer 6, an outlet 7, a recovery structure 8, a water discharge pipe 801, a water inlet pipe 802, a smoke cavity 803, a water cavity 804 and a smoke discharge pipe 9, wherein the heat-resistant corrosion-resistant layer 101 is fixedly connected to the inner wall of the denitration cylinder 1, the heat-conducting layer 102 is fixedly connected to the outer wall of the heat-conducting layer 101, the heat-insulating layer 103 is fixedly connected to the outer wall of the heat-conducting layer 102, the main body layer 104 is fixedly connected to the outer wall of the heat-insulating layer 103, the smoke inlet pipe 2 is fixedly connected to the left bottom end of the outer wall of the denitration cylinder 1, the uniform heat insulation plate 3 is fixedly connected to the top end, and 4 outer walls of catalysis board and 1 inner wall fixed connection of a denitration section of thick bamboo, 1 inside top fixed connection of a denitration section of thick bamboo is equipped with adsorbed layer 6, 1 top fixed connection of a denitration section of thick bamboo is equipped with export 7, export 7 top fixed connection is equipped with recovery structure 8, fixed connection is equipped with flue gas chamber 803 between the recovery structure 8, flue gas chamber 803 outer wall fixed connection is equipped with water cavity 804, flue gas chamber 803 bottom and export 7 fixed connection, 8 top fixed connection of recovery structure is equipped with smoke exhaust pipe 9, and smoke exhaust pipe 9 and flue gas chamber 803 top fixed connection, 8 bottom left side fixed connection of recovery structure is equipped with drain pipe 801, and drain pipe 801 and water cavity 804 bottom fixed connection, 8 top left side fixed connection of recovery structure is equipped with inlet tube 802, and inlet tube 802 and water cavity 804 top fixed connection.
In this embodiment, it is equipped with a plurality of apertures to equally divide 3 upper surfaces of heat insulating board, and the aperture is and runs through the setting, and equally divide heat insulating board 3 to make for thermal insulation material, makes 1 inside high temperature of a denitration section of thick bamboo can not flow backwards, equally divide heat insulating board 3 simultaneously and equally divide the flue gas and dash into inside heat insulating board 3.
In the embodiment, the catalytic plate 4 is arranged in a honeycomb shape, when the constant temperature heater 5 is used for heating, the coal flue gas is heated to enable the coal flue gas to reach the optimal denitration temperature, the coal flue gas is subjected to denitration through the catalytic plate 4, the catalytic plate 4 takes TiO2 as a carrier and V2O5, V2O 5-WO3 or V2O5-MoO3 as active ingredients, and the coal flue gas is subjected to catalytic denitration at the temperature of 315-400 ℃.
In this embodiment, the material of adsorption layer 6 is silica gel, makes adsorption layer 6 adsorb the SO3 that the denitration produced, can effectively prevent toxic gas.
In this embodiment, retrieve structure 8 and be the heliciform setting, make the coal flue gas increase in the route that retrieves 8 flows through of structure, make coal flue gas heat recovery more abundant.
In this embodiment, the flow directions of the fluids in the flue gas cavity 803 and the water cavity 804 are opposite, so that when the water in the water cavity 804 exchanges heat with the inside of the flue gas cavity 803, a heat quantity difference always exists, and the heat exchange is more sufficient.
In this embodiment, the cross sections of the flue gas cavity 803 and the water cavity 804 form a concentric circle structure, so that the water cavity 804 can wrap the flue gas cavity 803, and the heat exchange area is greatly increased.
The working principle is as follows: firstly, connecting a coal flue gas denitration heat recovery device with a smoke outlet of a steam boiler;
when the device is installed, cold water is connected with a water inlet pipe 802, a water outlet pipe 801 is connected with a steam boiler, and a smoke inlet pipe 2 is connected with a smoke outlet of the steam boiler;
when the desulfurization is carried out, the smoke outlet of the steam boiler guides the coal smoke into the denitration cylinder 1 from the smoke inlet pipe 2;
the upper surface of the equipartition heat insulation plate 3 is provided with a plurality of small holes which are arranged in a penetrating manner, the equipartition heat insulation plate 3 is made of heat insulation materials, so that high temperature in the denitration cylinder 1 cannot flow back, and meanwhile, the equipartition heat insulation plate 3 evenly flushes smoke into the heat insulation plate 3;
when the constant temperature heater 5 is used for heating, the coal flue gas is heated to reach the optimum denitration temperature, the coal flue gas is denitrated through the catalytic plate 4, the catalytic plate 4 takes TiO2 as a carrier and V2O5, V2O 5-WO3 or V2O5-MoO3 as an active component, and the coal flue gas is catalytically denitrated at 315-400 ℃;
meanwhile, the adsorption layer 6 is made of silica gel, SO that SO3 generated by denitration can be adsorbed by the adsorption layer 6, and toxic gas can be effectively prevented;
meanwhile, the denitrified coal flue gas is guided into the recovery structure 8 from the outlet 7;
coal smoke enters the smoke chamber 803, and at the same time, cold water enters the water chamber 804 from the water inlet pipe 802 and flows into the steam boiler from the water outlet pipe 801;
meanwhile, the paths of the coal smoke flowing through the recovery structure 8 are increased, so that the heat recovery of the coal smoke is more sufficient;
the fluid flow directions of the smoke chamber 803 and the water chamber 804 are opposite, so that when the water in the water chamber 804 exchanges heat with the inside of the smoke chamber 803, the heat quantity difference always exists, and the heat exchange is more sufficient.
The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (7)
1. A coal flue gas denitration heat recovery device, comprising: denitration section of thick bamboo (1), heat-resisting corrosion resistant layer (101), heat-conducting layer (102), insulating layer (103), main part layer (104), advance tobacco pipe (2), equally divide heat insulating board (3), catalysis board (4), constant temperature heater (5), adsorbed layer (6), export (7), retrieve structure (8), drain pipe (801), inlet tube (802), flue gas chamber (803), water cavity (804) and discharge fume pipe (9), its characterized in that: the denitration cylinder is characterized in that a heat-resistant corrosion-resistant layer (101) is fixedly connected with the inner wall of a denitration cylinder (1), a heat-conducting layer (102) is fixedly connected with the outer wall of the heat-resistant corrosion-resistant layer (101), a heat-insulating layer (103) is fixedly connected with the outer wall of the heat-conducting layer (102), a main body layer (104) is fixedly connected with the outer wall of the heat-insulating layer (103), a smoke inlet pipe (2) is fixedly connected with the left bottom end of the outer wall of the denitration cylinder (1), a heat-dividing plate (3) is fixedly connected with the top end of the inner part of the denitration cylinder (1), a plurality of constant temperature heaters (5) are arranged above the heat-dividing plate (3), the two ends of each constant temperature heater (5) are fixedly connected with the inner part of the denitration cylinder (1), a catalytic plate (4) is arranged above each constant temperature heater (5), the outer wall of, denitration section of thick bamboo (1) top fixed connection is equipped with export (7), export (7) top fixed connection is equipped with retrieves structure (8), fixed connection is equipped with flue gas chamber (803) between retrieving structure (8), flue gas chamber (803) outer wall fixed connection is equipped with water cavity (804), flue gas chamber (803) bottom and export (7) fixed connection, retrieve structure (8) top fixed connection and be equipped with tub (9) of discharging fume, and tub (9) and flue gas cavity (803) top fixed connection of discharging fume, it is equipped with drain pipe (801) to retrieve structure (8) bottom left side fixed connection, and drain pipe (801) and water cavity (804) bottom fixed connection, it is equipped with inlet tube (802) to retrieve structure (8) top left side fixed connection, and inlet tube (802) and water cavity (804) top fixed connection.
2. The coal flue gas denitration heat recovery device according to claim 1, characterized in that: the upper surface of the equal-distribution heat insulation plate (3) is provided with a plurality of small holes which are arranged in a penetrating manner.
3. The coal flue gas denitration heat recovery device according to claim 1, characterized in that: the catalytic plate (4) is arranged in a honeycomb shape.
4. The coal flue gas denitration heat recovery device according to claim 1, characterized in that: the adsorption layer (6) is made of silica gel.
5. The coal flue gas denitration heat recovery device according to claim 1, characterized in that: the recovery structure (8) is arranged spirally.
6. The coal flue gas denitration heat recovery device according to claim 1, characterized in that: the fluid flow directions of the smoke chamber (803) and the water chamber (804) are opposite.
7. The coal flue gas denitration heat recovery device according to claim 1, characterized in that: the cross sections of the smoke air cavity (803) and the water cavity (804) form a concentric circle structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922051045.2U CN212039846U (en) | 2019-11-25 | 2019-11-25 | Coal smoke denitration heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922051045.2U CN212039846U (en) | 2019-11-25 | 2019-11-25 | Coal smoke denitration heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212039846U true CN212039846U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922051045.2U Active CN212039846U (en) | 2019-11-25 | 2019-11-25 | Coal smoke denitration heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212039846U (en) |
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2019
- 2019-11-25 CN CN201922051045.2U patent/CN212039846U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220801 Address after: 215000 No. 32, group 2, Guang * village, tuxi Town, Quxian County, Suzhou City, Jiangsu Province Patentee after: Suzhou Langjing Environmental Technology Co.,Ltd. Address before: 116400 No.87 Xiangyang Road, Chengguan Street, Zhuanghe City, Dalian City, Liaoning Province Patentee before: Li Bingqiong |
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| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder |
Address after: 215000 room 10-6-610, building 10, No. 78, Keling Road, science and Technology City, high tech Zone, Suzhou, Jiangsu Province Patentee after: Suzhou Langjing Environmental Technology Co.,Ltd. Address before: 215000 No. 32, group 2, Guang * village, tuxi Town, Quxian County, Suzhou City, Jiangsu Province Patentee before: Suzhou Langjing Environmental Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Bingqiong Document name: Amendment and Correction Notice |
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| DD01 | Delivery of document by public notice |