CN220417358U - Chimney with fire extinguishing device - Google Patents
Chimney with fire extinguishing device Download PDFInfo
- Publication number
- CN220417358U CN220417358U CN202322095726.5U CN202322095726U CN220417358U CN 220417358 U CN220417358 U CN 220417358U CN 202322095726 U CN202322095726 U CN 202322095726U CN 220417358 U CN220417358 U CN 220417358U
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- China
- Prior art keywords
- section
- fire extinguishing
- chimney
- exhaust
- smoke exhaust
- Prior art date
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- 239000000779 smoke Substances 0.000 claims abstract description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 230000008021 deposition Effects 0.000 claims abstract description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 9
- 239000003063 flame retardant Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model relates to a chimney with a fire extinguishing device, which comprises at least one exhaust pipeline, wherein the exhaust pipeline is respectively communicated with the inside of a combustion chamber and the atmosphere, and each exhaust pipeline comprises a filtering section, a smoke discharging section and a detecting section; the smoke exhaust section is positioned at the top of the filtering section, one end of the smoke exhaust section is communicated with the filtering section, the top wall at the other end of the smoke exhaust section extends along the horizontal direction, and the bottom wall at the other end of the smoke exhaust section is far away from the horizontal direction and is bent downwards to form a deposition area; the detection section is positioned at the top of the smoke exhaust section and is communicated with one end of the smoke exhaust section extending horizontally; the top of the detection section is provided with at least one first temperature sensor and at least one flame detector, and the top of the detection section is also provided with a nitrogen fire extinguishing device; according to the utility model, the dual detection means are adopted to timely judge and identify the fire condition to carry out nitrogen blowing fire extinguishing or cooling, and the deposition area is arranged to facilitate the deposition of inflammable substances, so that the fire disaster caused by backflow into the pipeline is avoided, and the safety is good.
Description
Technical Field
The utility model relates to the technical field of smoke emission equipment, in particular to a chimney with a fire extinguishing device.
Background
The chimney is used as a common anti-pollution smoke exhaust device, is widely applied to production equipment such as a kiln and the like which need to be burnt, and becomes an indispensable part in the production process of electric energy; taking coal as an example, various atmospheric pollutants such as carbon dioxide, carbon monoxide, sulfides, nitrogen oxides and the like are generated after combustion; the air distribution quantity of the combustion chamber, the full degree of combustion and the temperature in the chimney can influence the deposition condition of partial pollutants in the flue when smoke is discharged, and fire is very easy to occur along with the long-term use of the chimney; in addition, as the production scale is enlarged, the volume of the chimney is gradually increased, the potential safety hazard is more, and a low-pollution chimney structure with a fire extinguishing device is required in industrial production.
Disclosure of Invention
Therefore, the technical problems to be solved by the utility model are to overcome the technical difficulties of high potential safety hazard and easy occurrence of fire when the chimney is exhausted in the prior art, and provide the chimney with the fire extinguishing device, which is convenient for real-time control and has good safety performance, and the fire disaster caused by the deposition of inflammable pollutants is avoided.
In order to solve the technical problems, the utility model provides a chimney with a fire extinguishing device, which comprises at least one exhaust pipeline, wherein the exhaust pipeline is respectively communicated with the inside of a combustion chamber and the atmosphere, each exhaust pipeline comprises,
the filtering section is arranged into a cylindrical cavity extending along the vertical direction, and one end of the filtering section is communicated with the inside of the combustion chamber;
the smoke exhaust section is positioned at the top of the filtering section, one end of the smoke exhaust section is communicated with the filtering section, the top wall at the other end of the smoke exhaust section extends along the horizontal direction, the bottom wall at the other end of the smoke exhaust section is far away from the horizontal direction and is bent downwards to form a deposition area, and the deposition area is provided with a cleaning opening capable of being opened and closed;
the detection section is positioned at the top of the smoke exhaust section and is communicated with one end of the smoke exhaust section extending horizontally; the detection section is provided with the exhaust port, detection section top is provided with at least one first temperature sensor and at least one flame detector, first temperature sensor with the flame detector orientation exhaust duct is inside to be set up, detection section top still is provided with nitrogen gas extinguishing device.
In an embodiment of the present utility model, the exhaust pipe includes two symmetrically arranged exhaust pipes, and the smoke exhaust sections of the two exhaust pipes are both bent towards a direction away from the central axis.
In one embodiment of the utility model, the nitrogen fire extinguishing device comprises a control mechanism, wherein a signal input end of the control mechanism is connected with the first temperature sensor and the flame detector, and a control output end of the control mechanism is connected with the nitrogen fire extinguishing device.
In one embodiment of the utility model, each of the exhaust ducts comprises a gate valve located between the filter section and the smoke evacuation section; the valve body of push-pull valve is provided with second temperature sensor and pressure detector, second temperature sensor with pressure detector all connects control mechanism's signal input part.
In one embodiment of the utility model, the nitrogen fire extinguishing device comprises a gas source and a gas outlet mechanism, wherein the gas source is externally connected with a nitrogen gas storage tank, and the gas outlet mechanism is arranged at the top of the detection section.
In one embodiment of the utility model, the air outlet mechanism comprises 4-6 groups of fire extinguishing areas, and each group of fire extinguishing areas comprises 4-6 air outlets; each group of fire extinguishing areas is independently connected with the control output end of the control mechanism.
In one embodiment of the utility model, the nitrogen fire extinguishing device further comprises a manual switch, and each group of fire extinguishing areas is provided with the manual switch for independent control.
In one embodiment of the utility model, the smoke evacuation section is configured to form the bottom wall of the deposition zone at an angle of 3 ° to the horizontal.
In one embodiment of the utility model, the pipe wall of the exhaust pipe is made of stainless steel, and the thickness of the pipe wall is greater than 4mm; a refractory layer is built on the inner layer of the pipe wall, and the thickness of the refractory layer is larger than 65mm; the pipe wall is coated with flame-retardant cotton, and the thickness of the flame-retardant cotton is greater than 75mm; the outer layer of the flame-retardant cotton is coated with an aluminum layer.
In one embodiment of the utility model, a ceramic layer is further arranged in the refractory layer of the exhaust pipeline, and the pipeline diameter of the ceramic layer inside the filtering section is greater than or equal to 220mm.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the chimney with the fire extinguishing device, the temperature sensor and the flame detector are integrated at the top of the exhaust pipeline, the dual detection means improves the safety performance, can timely judge and identify fire conditions to carry out nitrogen blowing fire extinguishing or cooling, and has high automation degree; the utility model also provides a deposition area for facilitating the deposition of inflammable substances, avoids fire disaster caused by backflow entering the pipeline, is convenient for cleaning in time, and has better safety.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which:
fig. 1 is a schematic view of a chimney with fire extinguishing apparatus in a preferred embodiment of the utility model.
Description of the specification reference numerals: 1. an exhaust duct; 2. a filtering section; 3. a smoke exhaust section; 31. a deposition zone; 4. a detection section; 41. a first temperature sensor; 42. a flame detector; 5. a gate valve; 6. a refractory layer; 7. and a ceramic layer.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Examples
Referring to fig. 1, the utility model provides a chimney with a fire extinguishing device, which comprises at least one exhaust pipeline 1, wherein the exhaust pipeline 1 is respectively communicated with the inside of a combustion chamber and the atmosphere, and gas generated in the industrial production process such as combustion is discharged to the atmosphere after being treated; each exhaust pipeline 1 comprises a filtering section 2, a smoke exhausting section 3 and a detecting section 4 which are sequentially connected, and the smoke exhausting section 3 is further provided with a deposition area 31. In some embodiments, as described with reference to fig. 1, the chimney with fire extinguishing device includes two exhaust pipes 1 symmetrically arranged, and the double-row arrangement increases the heat contained in the exhaust smoke, so as to increase the rising height of the smoke, improve the diffusion effect, reduce pollution, and facilitate construction.
Specifically, referring to fig. 1, the filtering section 2 of the exhaust duct 1 is provided as a cylindrical cavity extending in the vertical direction, one end of which communicates with the inside of the combustion chamber; the inner layer of the filter section 2 is lined with a ceramic tube, the ceramic material has good high temperature resistance, and the diameter of a pipeline of the ceramic layer 7 in the filter section 2 is more than or equal to 220mm; in some embodiments, the end of the filter segment 2, which is communicated with the combustion chamber, is provided with a horn shape and is opened towards the interior of the combustion chamber, so that the smoke is discharged.
Specifically, referring to fig. 1, the smoke exhaust section 3 of the exhaust duct 1 is located at the top of the filtering section 2, one end of the smoke exhaust section is communicated with the filtering section 2 and extends along the vertical direction, and the other end of the smoke exhaust section is bent; the top wall of the end, far away from the filtering section 2, of the smoke discharging section 3 extends along the horizontal direction, and the bottom wall of the end, far away from the filtering section 2, of the smoke discharging section 3 bends downwards along the horizontal direction to form a deposition area 31; tar and the like in the flue gas can be deposited on the bottom wall of the smoke exhaust section 3 when passing through the smoke exhaust section 3; in the preferred embodiment of the present utility model, the smoke exhaust section 3 is used for forming an included angle between the bottom wall of the deposition area 31 and the horizontal direction of 3 °, and tar can flow along the bottom wall away from the filtering section 2, so as to avoid the reverse flow of tar back to the filtering section 2 to cause a fire, reduce the potential safety hazard, and facilitate the treatment of deposited inflammable substances such as tar. In some embodiments, the deposition area 31 is provided with a cleaning opening capable of opening and closing, so that the tar is cleaned manually for chimney maintenance. In some embodiments, the chimney with fire extinguishing device comprises two exhaust pipelines 1, and the smoke discharging sections 3 of the two exhaust pipelines 1 are bent towards a direction away from the central axis, so that the deposition area 31 and the cleaning opening are convenient to set, and the chimney is convenient to maintain.
Specifically, as described with reference to fig. 1, the detecting section 4 of the exhaust duct 1 is located at the top of the smoke exhaust section 3 and is communicated with one end of the smoke exhaust section 3 extending horizontally; the top of the detection section 4 is provided with at least one first temperature sensor 41 and at least one flame detector 42, the first temperature sensor 41 and the flame detector 42 are arranged towards the inside of the exhaust pipeline, the first temperature sensor 41 is used for detecting the temperature inside the exhaust pipeline 1, and the flame detector 42 detects whether hot smoke or flame burns in the exhaust pipeline 1 through smoke, heat or invisible light. The top of the detection section 4 is also provided with a nitrogen fire extinguishing device, and the nitrogen fire extinguishing device can automatically extinguish fire when a fire is identified.
Further, the chimney with fire extinguishing device further comprises a control mechanism, the signal input end of the control mechanism is connected with the first temperature sensor 41 and the flame detector 42, whether fire occurs or not can be judged according to the feedback data of the first temperature sensor 41 or/and the flame detector 42, the dual detection means are arranged to improve the safety performance of the chimney, fire judgment is independently carried out according to the detection data of the first temperature sensor 41 and the flame detector 42, and the safety is better. The control output end of the control mechanism is connected with the nitrogen fire extinguishing device, and when the control mechanism identifies fire or fire hidden danger, the control mechanism can start the nitrogen fire extinguishing device to automatically extinguish fire in the exhaust pipeline 1. In a preferred embodiment of the present utility model, the nitrogen fire extinguishing device can extinguish fire when fire occurs, and can be driven to open by the control mechanism when the temperature of the flue gas in the exhaust pipeline 1 is high, so that the temperature in the exhaust pipeline 1 is reduced, and fire is avoided.
Further, the nitrogen fire extinguishing device comprises an air source and an air outlet mechanism, the air source is externally connected with a nitrogen gas storage tank, and the air outlet mechanism is arranged at the top of the detection section 4 and faces the inside of the exhaust pipeline 1 to perform nitrogen gas blowing fire extinguishing. The air outlet mechanism comprises 4-6 groups of fire extinguishing areas, and each group of fire extinguishing areas comprises 4-6 air outlets; each group of fire extinguishing areas is independently connected with the control output end of the control mechanism. The gas outlet is used as fire extinguishing points to be arranged at intervals and independently controlled, the control mechanism can control the fire extinguishing areas to work according to the fire detection condition, and the fire extinguishing efficiency is high and the cost is convenient to control. Meanwhile, in a preferred embodiment of the utility model, the nitrogen fire extinguishing device further comprises a manual switch, and each group of fire extinguishing areas is configured to be independently controlled by the manual switch and can be manually controlled by an operator to cool down.
Further, the detection section 4 in the exhaust pipeline 1 is provided with a smoke exhaust pipe, and the smoke exhaust pipe comprises a smoke exhaust port communicated with the atmosphere; in the preferred embodiment of the utility model, the temperature rising area, the variable temperature area and the temperature reducing area of the smoke in the exhaust pipeline 1 are all provided with the smoke exhaust pipe, the smoke outlet of the smoke exhaust pipe meets the smoke discharge amount requirement, the smoke discharge is ensured to meet the international environmental protection requirement, and the smoke discharge temperature of the smoke outlet is in the range of 100-900 ℃.
Specifically, referring to fig. 1, each of the exhaust pipes 1 includes a gate valve 5, and the gate valve 5 is located between the filter section 2 and the smoke exhaust section 3; the gate valve 5 is used for isolating partial gas flow and avoiding pollution caused by untreated flue gas directly entering the smoke exhaust section 3; and simultaneously, the maintenance environment of the exhaust pipeline 1 is suitable for operation. The valve body of the gate valve 5 is provided with a second temperature sensor and a pressure detector, and the second temperature sensor and the pressure detector are both connected with a signal input end of the control mechanism and are used for detecting the temperature and the pressure in the exhaust pipeline 1 to perform independent temperature detection and pressure detection; and detection data of the second temperature sensor and the pressure detector are transmitted to the control mechanism through the communication system to be displayed in a centralized way, so that the management of staff is facilitated.
Specifically, referring to fig. 1, the wall of the exhaust pipe 1 is made of SUS310 stainless steel or SUS304 stainless steel, and the thickness of the wall is greater than 4mm; a ceramic layer 7 is arranged on the inner lining of the wall of the filtering section of the exhaust pipeline 1; the inside of the exhaust pipeline 1 is built by refractory materials to form a refractory layer 6, and the refractory layer 6 is positioned on the inner layer of the stainless steel pipe wall and has a thickness of more than 65mm; the pipe wall is coated with flame-retardant cotton, and the thickness of the flame-retardant cotton is greater than 75mm; the outer layer of the flame-retardant cotton is coated with an aluminum layer. The layer structure of the exhaust pipeline 1 is arranged to enable the fireproof and high-temperature-resistant performance to be good, and the overall safety performance of the chimney can be improved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. A chimney with fire extinguishing device is characterized by comprising at least one exhaust pipeline which is respectively communicated with the inside of a combustion chamber and the atmosphere, wherein each exhaust pipeline comprises,
the filtering section is arranged into a cylindrical cavity extending along the vertical direction, and one end of the filtering section is communicated with the inside of the combustion chamber;
the smoke exhaust section is positioned at the top of the filtering section, one end of the smoke exhaust section is communicated with the filtering section, the top wall at the other end of the smoke exhaust section extends along the horizontal direction, the bottom wall at the other end of the smoke exhaust section is far away from the horizontal direction and is bent downwards to form a deposition area, and the deposition area is provided with a cleaning opening capable of being opened and closed;
the detection section is positioned at the top of the smoke exhaust section and is communicated with one end of the smoke exhaust section extending horizontally; the detection section is provided with the exhaust port, detection section top is provided with at least one first temperature sensor and at least one flame detector, first temperature sensor with the flame detector orientation exhaust duct is inside to be set up, detection section top still is provided with nitrogen gas extinguishing device.
2. A chimney with fire extinguishing apparatus according to claim 1, characterized in that: the exhaust pipeline comprises two exhaust pipelines which are symmetrically arranged, and the smoke exhaust sections of the two exhaust pipelines are bent towards the direction far away from the central axis.
3. A chimney with fire extinguishing apparatus according to claim 2, characterized in that: the fire-extinguishing device comprises a control mechanism, wherein a signal input end of the control mechanism is connected with the first temperature sensor and the flame detector, and a control output end of the control mechanism is connected with the nitrogen fire-extinguishing device.
4. A chimney with fire extinguishing apparatus according to claim 3, characterized in that: each exhaust pipeline comprises a gate valve, and the gate valves are positioned between the filtering section and the smoke exhaust section; the valve body of push-pull valve is provided with second temperature sensor and pressure detector, second temperature sensor with pressure detector all connects control mechanism's signal input part.
5. A chimney with fire extinguishing apparatus according to claim 3, characterized in that: the nitrogen fire extinguishing device comprises an air source and an air outlet mechanism, wherein the air source is externally connected with a nitrogen storage tank, and the air outlet mechanism is arranged at the top of the detection section.
6. A chimney with fire extinguishing apparatus according to claim 5, characterized in that: the air outlet mechanism comprises 4-6 groups of fire extinguishing areas, and each group of fire extinguishing areas comprises 4-6 air outlets; each group of fire extinguishing areas is independently connected with the control output end of the control mechanism.
7. A chimney with fire extinguishing apparatus according to claim 6, characterized in that: the nitrogen fire extinguishing device further comprises a manual switch, and each group of fire extinguishing areas is independently controlled by the manual switch.
8. A chimney with fire extinguishing apparatus according to any of claims 1-7, characterized in that: the smoke exhaust section is used for forming an included angle of 3 degrees between the bottom wall of the deposition area and the horizontal direction.
9. A chimney with fire extinguishing apparatus according to claim 1, characterized in that: the pipe wall of the exhaust pipeline is made of stainless steel, and the thickness of the pipe wall is greater than 4mm; a refractory layer is built on the inner layer of the pipe wall, and the thickness of the refractory layer is larger than 65mm; the pipe wall is coated with flame-retardant cotton, and the thickness of the flame-retardant cotton is greater than 75mm; the outer layer of the flame-retardant cotton is coated with an aluminum layer.
10. A chimney with fire extinguishing apparatus according to claim 9, characterized in that: and a ceramic layer is further arranged in the refractory layer of the exhaust pipeline, and the pipeline diameter of the ceramic layer in the filtering section is more than or equal to 220mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322095726.5U CN220417358U (en) | 2023-08-04 | 2023-08-04 | Chimney with fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322095726.5U CN220417358U (en) | 2023-08-04 | 2023-08-04 | Chimney with fire extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220417358U true CN220417358U (en) | 2024-01-30 |
Family
ID=89648210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322095726.5U Active CN220417358U (en) | 2023-08-04 | 2023-08-04 | Chimney with fire extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220417358U (en) |
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2023
- 2023-08-04 CN CN202322095726.5U patent/CN220417358U/en active Active
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