CN215539516U - Boiler tail gas cooling device - Google Patents
Boiler tail gas cooling device Download PDFInfo
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- CN215539516U CN215539516U CN202121640415.7U CN202121640415U CN215539516U CN 215539516 U CN215539516 U CN 215539516U CN 202121640415 U CN202121640415 U CN 202121640415U CN 215539516 U CN215539516 U CN 215539516U
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- tail gas
- outer box
- cooling device
- boiler tail
- box body
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Abstract
The utility model discloses a boiler tail gas cooling device, which leads tail gas into an outer box from a lower gas inlet to carry out cooling operation, wherein a gas outlet is formed in the upper part of the outer box, the gas outlet is connected with the next step of further dust removal operation, the boiler tail gas cooling device comprises air inlets formed in the left side and the right side of the outer box, negative pressure fans arranged in the gas outlet and the air inlets, an ash discharge port formed in the bottom of the outer box, a condensation pipe fixedly arranged in the middle position in the outer box, and filler fixedly filled outside the condensation pipe. This boiler tail gas heat sink adopts neotype structural design for the device will indirectly cool down and directly cool down and combine together, utilize the outside air to carry out direct cooling to tail gas earlier, later recycle the condenser pipe of top and carry out the heat transfer, thereby reach better cooling effect, and increase the filter screen in the below, carry out the preliminary treatment to tail gas, thereby alleviate follow-up dust collector's pressure, increase the functionality of device.
Description
Technical Field
The utility model relates to the technical field of tail gas treatment, in particular to a boiler tail gas cooling device.
Background
In the filter materials of the dust removal cloth bags commonly used by many boiler dust remover factories, the glass fiber needled felt filter materials have higher temperature resistance, and the long-term working temperature can reach 280 ℃. But the flue gas of the industrial furnace kiln can reach hundreds or even thousands of degrees centigrade. The use of the boiler dust collector is limited by the temperature resistance of the filter material, and measures are required to reduce the temperature of the flue gas to the range which can be borne by the filter material of the dust collection cloth bag to solve the problem.
In the prior art, chinese patent with publication number CN203100491U discloses a boiler flue gas cooling device, which comprises a shell, a condensed water collecting box, a cooling flue gas outlet box and a fin coil bundle; the boiler is characterized in that a condensed water collecting box and a cooling flue gas outlet box are respectively and fixedly arranged on one side in the shell, one end of the fin coil bundle is fixedly arranged with the condensed water collecting box and communicated with the condensed water collecting box, and the other end of the fin coil bundle is fixedly arranged with the cooling flue gas outlet box and communicated with the cooling flue gas outlet box.
However, in the actual use process, the device only cools the tail gas in a condensing pipe mode, the overall cooling effect is limited, and the device only has a cooling device, so that the overall function is single.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a boiler tail gas cooling device to solve the problems of limited cooling effect and single function in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a boiler tail gas heat sink lets in outer box with tail gas from the air inlet of below and cools down the operation, the gas outlet has been seted up to outer box top, just the gas outlet is connected with next one further dust removal operation, include:
the air inlets are formed in the left side and the right side of the outer box body and communicated with the outside air;
the negative pressure fan is arranged inside the air outlet and the air inlet;
the ash discharge port is formed in the bottom of the outer box body, and a scraper plate capable of pushing dust to the ash discharge port is arranged above the ash discharge port;
the condensation pipe is fixedly arranged in the middle of the inner part of the outer box body, and the whole condensation pipe is of an annular structure capable of increasing the area;
the filler is fixedly filled outside the condenser pipe, and 2 layers of the filler are symmetrically arranged on the condenser pipe up and down;
the spray head is rotatably arranged on the upper surface inside the outer box body, and a driven gear is clamped and arranged on the outer side of the upper end of the spray head;
And the water injection pipe is connected to the upper end of the spray header and is connected with an external water source.
Preferably, the driven gear and the arc-shaped rack form a meshing structure, the arc-shaped rack passes through an electric telescopic rod and forms a telescopic structure with the outer box body, and the arc-shaped rack is driven to rotate through the negative pressure fan, so that the driven gear meshed with the arc-shaped rack drives the spray header to rotate, and the filler below the spray header is cleaned.
Preferably, the filter screen that can carry out the preliminary treatment is installed to the inside below of outer box, just the filter screen below is rotated and is installed and to be carried out the clearance brush of clearing up to it, utilizes the filter screen can carry out prefilter to the tail gas that gets into, goes out the dust of great granule in the district, alleviates the pressure of follow-up dust removal operation.
Preferably, the lower end of the cleaning brush is connected with a transverse helical gear by a belt, the transverse helical gear and a longitudinal helical gear form an engagement structure, and an external motor drives the internal transverse helical gear to rotate, so that the longitudinal helical gear is driven to rotate, and the longitudinal helical gear drives a transmission screw rod to synchronously rotate.
Preferably, a transmission screw rod is coaxially and fixedly installed on the left side of the longitudinal helical gear, the thread directions of the left section and the right section of the transmission screw rod are opposite, and the transmission screw rod drives the scraper installed on the outer side of the transmission screw rod to move left and right in opposite directions while rotating.
Preferably, the scraper blade pass through the transmission lead screw with outer box constitution sliding construction, just the scraper blade is whole be with the arc structure of outer box bottom inner wall laminating, utilize the reciprocating motion of scraper blade to push away the dust that gets off the clearance to the ash discharge opening position, utilize the ash discharge opening with its eduction gear outside.
Compared with the prior art, the utility model has the beneficial effects that: this boiler tail gas heat sink adopts neotype structural design for the device will indirectly cool down and directly cool down and combine together, utilize the outside air to carry out direct cooling to tail gas earlier, later recycle the condenser pipe of top and carry out the heat transfer, thereby reach better cooling effect, and increase the filter screen in the below, carry out the preliminary treatment to tail gas, thereby alleviate follow-up dust collector's pressure, increase the functionality of device.
1. Air intake, filler, condenser pipe and shower head between the cooperation use, at first utilize the negative pressure fan in the air intake with outside air intake inside to directly cool down tail gas, later tail gas slows down the rising speed under the effect of filler to utilize the condenser pipe to carry out abundant heat transfer, reach better cooling effect, and can utilize the shower head of top to wash filler, prevent to block up.
2. The cooperation between filter screen, clearance brush, transmission lead screw and the scraper blade is used, utilizes the filter screen can carry out preliminary filtration edulcoration to the tail gas that gets into to alleviate the pressure of follow-up dust removal, and utilize the rotation of below clearance brush to in time clear up the filter screen, drive the transmission lead screw simultaneously and rotate in the pivoted, remove about the scraper blade of making its outside installation, push away the dust that gets off and arrange the ash hole and discharge.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic top sectional view of the outer case according to the present invention;
FIG. 3 is a schematic top view of a portion of an arcuate rack of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 5 is a schematic top view of the squeegee of the present invention.
In the figure: 1. an outer case; 2. an air outlet; 3. an air inlet; 4. a negative pressure fan; 5. an air inlet; 6. an ash discharge port; 7. a condenser tube; 8. a filler; 9. a shower head; 10. a water injection pipe; 11. a driven gear; 12. an arc-shaped rack; 13. an electric telescopic rod; 14. a filter screen; 15. cleaning a brush; 16. a transmission screw rod; 17. a squeegee; 18. a longitudinal helical gear; 19. a lateral helical gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a boiler tail gas heat sink lets in tail gas from air inlet 5 of below outer box 1 and cools down the operation, has seted up gas outlet 2 in 1 tops of outer box, and gas outlet 2 and next one further remove dust the operation to being connected, include:
the air inlets 3 are formed in the left side and the right side of the outer box body 1, and the air inlets 3 are communicated with the outside air;
the negative pressure fan 4 is arranged inside the air outlet 2 and the air inlet 3;
the ash discharge port 6 is formed at the bottom of the outer box body 1, and a scraper 17 capable of pushing dust to the ash discharge port 6 is arranged above the ash discharge port;
the condensing pipe 7 is fixedly arranged in the middle of the inner part of the outer box body 1, and the whole condensing pipe 7 is of an annular structure capable of increasing the area;
The packing 8 is fixedly filled outside the condenser pipe 7, and the packing 8 is symmetrically arranged on the upper part and the lower part of the condenser pipe 7 by 2 layers;
the spray header 9 is rotatably arranged on the upper surface inside the outer box body 1, and a driven gear 11 is clamped and arranged on the outer side of the upper end of the spray header 9;
and the water injection pipe 10 is connected to the upper end of the spray header 9, and the water injection pipe 10 is connected with an external water source.
Driven gear 11 constitutes the meshing structure with arc rack 12, and arc rack 12 passes through electric telescopic handle 13 and constitutes extending structure with outer box 1.
When the device is used, the device is firstly installed at a proper position, then the air inlet 5 below the device is connected with a tail gas discharge port of a boiler, then tail gas discharged by the boiler enters the outer box body 1, meanwhile, the negative pressure fans 4 on the left side and the right side rotate to suck outside air into the outer box body 1, the tail gas entering the inner part is cooled by using air with lower temperature, the tail gas after primary cooling continues to move upwards, the ascending speed is slowed down under the blocking of the filler 8 on the upper part, cold water circularly flows in the condenser pipe 7, the cold water is used for carrying out heat exchange on the tail gas to further cool the tail gas, finally the tail gas is discharged into a subsequent dust removal device from the air outlet 2 above the tail gas for treatment, after the tail gas is used for a period of time, the arc-shaped rack 12 is pushed to a position meshed with the driven gear 11 by the extension of the electric telescopic rod 13, and the driven gear 11 drives the spray header 9 to rotate by the rotation of the electric telescopic rod, so that the packing 8 is washed by the water injected from the upper water injection pipe 10.
A filter screen 14 capable of being pretreated is installed below the inner portion of the outer box body 1, a cleaning brush 15 capable of cleaning the filter screen 14 is installed below the filter screen in a rotating mode, the lower end of the cleaning brush 15 is connected with a transverse helical gear 19 through a belt, the transverse helical gear 19 and a longitudinal helical gear 18 form an engagement structure, a transmission screw 16 is installed on the left side of the longitudinal helical gear 18 in a coaxial and fixed mode, the thread directions of the left transmission screw 16 and the right transmission screw 16 are opposite, a scraper 17 forms a sliding structure with the outer box body 1 through the transmission screw 16, and the scraper 17 is integrally of an arc-shaped structure attached to the inner wall of the bottom of the outer box body 1.
After the tail gas enters the outer box body 1, the tail gas firstly passes through the filter screen 14, dust with larger particles in the tail gas is filtered by the filter screen 14, meanwhile, the cleaning brush 15 below the tail gas is driven by the motor to rotate, the dust on the filter screen 14 is cleaned, the transverse helical gear 19 at the rear part is driven by the motor to rotate, so that the longitudinal helical gear 18 meshed with the rear part is driven to synchronously rotate, the transmission screw rod 16 rotates, the scraper plates 17 outside the transmission screw rod are driven to move oppositely, and the cleaned dust is pushed to the dust discharge port 6 to be discharged.
The working principle is as follows: when the device is used, according to the structure shown in the figures 1-5, firstly, the tail gas to be cooled is primarily filtered by the filter screen 14, partial dust is removed, and then the subsequent dust removal pressure is reduced, and then the external air entering the air inlet 3 and the condenser pipe 7 above the air inlet are utilized to jointly cool the tail gas, so that a better cooling effect is achieved, which is the working principle of the tail gas cooling device of the boiler.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a boiler tail gas heat sink lets in outer box with tail gas from the air inlet of below and cools down the operation, the gas outlet has been seted up to outer box top, just the gas outlet is connected with next one further dust removal operation, its characterized in that includes:
the air inlets are formed in the left side and the right side of the outer box body and communicated with the outside air;
the negative pressure fan is arranged inside the air outlet and the air inlet;
the ash discharge port is formed in the bottom of the outer box body, and a scraper plate capable of pushing dust to the ash discharge port is arranged above the ash discharge port;
the condensation pipe is fixedly arranged in the middle of the inner part of the outer box body, and the whole condensation pipe is of an annular structure capable of increasing the area;
the filler is fixedly filled outside the condenser pipe, and 2 layers of the filler are symmetrically arranged on the condenser pipe up and down;
The spray head is rotatably arranged on the upper surface inside the outer box body, and a driven gear is clamped and arranged on the outer side of the upper end of the spray head;
and the water injection pipe is connected to the upper end of the spray header and is connected with an external water source.
2. The boiler tail gas cooling device according to claim 1, characterized in that: the driven gear and the arc-shaped rack form a meshing structure, and the arc-shaped rack and the outer box body form a telescopic structure through an electric telescopic rod.
3. The boiler tail gas cooling device according to claim 1, characterized in that: the inside below of outer box is installed and is carried out the filter screen of preliminary treatment, just the filter screen below is rotated and is installed and to be carried out the clearance brush that clears up to it.
4. The boiler tail gas cooling device according to claim 3, characterized in that: the lower end of the cleaning brush is connected with a transverse helical gear by a belt, and the transverse helical gear and the longitudinal helical gear form an engagement structure.
5. The boiler tail gas cooling device according to claim 4, characterized in that: and a transmission screw rod is coaxially and fixedly arranged on the left side of the longitudinal helical gear, and the thread directions of the left transmission screw rod and the right transmission screw rod are opposite.
6. The boiler tail gas cooling device according to claim 1, characterized in that: the scraper blade pass through the transmission lead screw with outer box constitution sliding construction, just the scraper blade is whole be with outer box bottom inner wall laminating's arc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121640415.7U CN215539516U (en) | 2021-07-19 | 2021-07-19 | Boiler tail gas cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121640415.7U CN215539516U (en) | 2021-07-19 | 2021-07-19 | Boiler tail gas cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215539516U true CN215539516U (en) | 2022-01-18 |
Family
ID=79826706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121640415.7U Active CN215539516U (en) | 2021-07-19 | 2021-07-19 | Boiler tail gas cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215539516U (en) |
-
2021
- 2021-07-19 CN CN202121640415.7U patent/CN215539516U/en active Active
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