CN216203484U - Radiation cooling chamber structure with built-in water-cooling screen - Google Patents
Radiation cooling chamber structure with built-in water-cooling screen Download PDFInfo
- Publication number
- CN216203484U CN216203484U CN202122586020.XU CN202122586020U CN216203484U CN 216203484 U CN216203484 U CN 216203484U CN 202122586020 U CN202122586020 U CN 202122586020U CN 216203484 U CN216203484 U CN 216203484U
- Authority
- CN
- China
- Prior art keywords
- wall
- flue gas
- channel
- ascending
- descending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model relates to a radiation cooling chamber structure with a built-in water-cooling screen, which comprises a descending channel and an ascending channel, wherein the lower parts of the descending channel and the ascending channel are respectively provided with a flue gas outlet and a flue gas outlet; the quantity of the front side wall and the quantity of the rear side wall are both sides and are arranged in parallel, the two ends of the front side wall are respectively connected with the front wall and the middle partition wall, and the two ends of the rear side wall are respectively connected with the middle partition wall and the rear wall. According to the utility model, the water-cooling screen is arranged on the descending channel of the radiation cooling chamber, so that the radiation heating surface is effectively increased, the temperature of the smoke at the outlet of the descending channel, namely the temperature of the smoke at the inlet of the ascending channel, can be reduced to a reasonable range, and the contamination and corrosion hidden trouble of the convection heating surface in the ascending channel are eliminated.
Description
Technical Field
The utility model belongs to the technical field of boiler equipment, and relates to a radiation cooling chamber structure with a built-in water-cooling screen.
Background
For boilers fueled by solid wastes, a radiant cooling chamber is typically provided at the furnace exit to further burn off the fuel while settling a portion of the ash. The radiant cooling chamber generally has two passages, the first of which is called the descending passage and the second of which is called the ascending passage, depending on the flue gas flow direction. The smoke enters the descending channel from the smoke inlet, enters the ascending channel after turning of the smoke turning chamber and is discharged from the smoke outlet. The descending channel consists of a front wall, a front side wall and an intermediate wall, and the ascending channel consists of an intermediate wall, a rear wall and a rear side wall. The descending passage and the ascending passage share an intermediate wall. Generally, the front wall, the middle partition wall, the rear wall, the front side wall and the rear side wall are all of membrane wall structures and respectively form radiation heating surfaces of a descending channel and an ascending channel. Considering the characteristics that solid waste fuel is easy to cause the contamination and corrosion of a heating surface, especially in a region with higher smoke temperature, the convection heating surface is generally not arranged in the descending channel, but only arranged in the ascending channel, and meanwhile, the smoke temperature at the outlet of the descending channel, namely the smoke temperature at the inlet of the ascending channel, needs to be strictly controlled to reduce the contamination and corrosion of the convection heating surface.
The volume of the radiation cooling chamber is gradually increased along with the increase of the capacity of the boiler, but the areas of radiation heating surfaces formed by the peripheral wall surfaces of a descending channel and an ascending channel of the radiation cooling chamber cannot be increased at the same amplitude, the radiation heating surfaces are lack, enough heat cannot be absorbed, the smoke temperature at the outlet of the descending channel, namely the smoke temperature at the inlet of the ascending channel cannot be reduced to a reasonable range, and great pollution and corrosion hidden troubles are brought to a convection heating surface in the ascending channel.
Disclosure of Invention
The utility model aims to provide a radiation cooling chamber structure with a built-in water-cooling screen, which can arrange enough radiation heating surfaces as required to reduce the temperature of smoke at the outlet of a descending channel, namely the temperature of smoke at the inlet of an ascending channel, to a reasonable range and eliminate the hidden danger of contamination and corrosion of convection heating surfaces in the ascending channel.
According to the technical scheme provided by the utility model: a radiation cooling chamber structure with a built-in water-cooling screen comprises a descending channel and an ascending channel, wherein the lower parts of the descending channel and the ascending channel are respectively provided with a descending flue gas outlet and an ascending flue gas inlet, the bottoms of the descending flue gas outlet and the ascending flue gas inlet are communicated with a flue gas turning chamber, the descending channel consists of a front wall, a front side wall and a middle partition wall, the upper part of the descending channel is provided with a flue gas inlet, the ascending channel consists of the middle partition wall, a rear wall and a rear side wall, and the upper part of the ascending channel is provided with a flue gas outlet; the front side walls are arranged in parallel, and two ends of each front side wall are respectively connected with the front wall and the partition wall; the upper part of the middle partition wall is of a bending structure; the upper part of the middle partition wall is connected with a front wall; the number of the rear side walls is two, the rear side walls are arranged in parallel, and two ends of each rear side wall are respectively connected with the rear wall and the middle partition wall; the upper part of the rear wall is of a bending structure; the upper part of the middle partition wall is connected with the upper part of the rear wall; a convection heating surface is arranged in the ascending channel, and a water cooling screen is arranged in the descending channel.
As a further improvement of the utility model, the front wall is provided with a smoke inlet at the upper part.
As a further improvement of the utility model, the upper part of the rear wall is provided with a smoke outlet.
As a further improvement of the utility model, the descending channel and the ascending channel share an intermediate wall.
As a further improvement of the utility model, the water screen is communicated with the bottom of the intermediate wall.
As a further improvement of the utility model, 2 or more water screens are arranged in parallel in the descending channel.
As a further improvement of the utility model, the flue gas diversion chamber is bucket-shaped.
As a further improvement of the utility model, the left side of the smoke diversion chamber is a first diversion surface, and the right side of the smoke diversion chamber is a second diversion surface.
As a further improvement of the utility model, the front wall, the middle partition wall, the rear wall, the front side wall, the rear side wall and the water screen are all membrane wall structures.
The positive progress effect of this application lies in:
according to the utility model, the water-cooling screen is arranged on the descending channel of the radiation cooling chamber, so that the radiation heating surface is effectively increased, the temperature of the smoke at the outlet of the descending channel, namely the temperature of the smoke at the inlet of the ascending channel, can be reduced to a reasonable range, and the contamination and corrosion hidden trouble of the convection heating surface in the ascending channel are eliminated.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover such processes, methods, systems, articles, or apparatus that comprise a list of steps or elements, are not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such processes, methods, articles, or apparatus.
In fig. 1-2, the heat exchanger comprises a descending channel 1, an ascending channel 2, a front wall 3, an intermediate wall 4, a rear wall 5, a front side wall 6, a rear side wall 7, a water screen 8, a flue gas inlet 9, a flue gas outlet 10, a flue gas turning chamber 11 and a convection heating surface 12.
As shown in fig. 1-2, the utility model is a radiation cooling chamber structure with a built-in water-cooling screen, which comprises a descending channel 1 and an ascending channel 2, wherein the lower parts of the descending channel 1 and the ascending channel 2 are respectively provided with a descending flue gas outlet and an ascending flue gas inlet, the bottoms of the descending flue gas outlet and the ascending flue gas inlet are communicated with a flue gas diversion chamber 11, the descending channel 1 is composed of a front wall 3, a front side wall 6 and a middle partition wall 4, the upper part of the descending channel 1 is provided with a flue gas inlet 9, the ascending channel 2 is composed of the middle partition wall 4, a rear wall 5 and a rear side wall 7, and the upper part of the ascending channel 2 is provided with a flue gas outlet 10.
The number of the front side walls 6 is two, the front side walls are arranged in parallel, and two ends of each front side wall 6 are respectively connected with the front wall 3 and the partition wall 4. The upper part of the intermediate wall 4 is of a bending structure and is used for sealing the top of the descending channel 1. The upper part of the intermediate wall 4 is connected with the top end of the front wall 3. The upper part of the front wall 3 is provided with a flue gas inlet 9.
The number of the rear side walls 7 is two, the rear side walls are arranged in parallel, and two ends of each rear side wall 7 are respectively connected with the rear wall 5 and the partition wall 4. The upper part of the rear wall 5 is of a bending structure and is used for sealing the top of the ascending channel 2. The upper part of the rear wall 5 is connected with the upper part of the intermediate wall 4. The upper part of the rear wall 5 is provided with a smoke outlet 10.
The descending path 1 and the ascending path 2 share an intermediate wall 4.
A water screen 8 is arranged in the descending channel 1, the water screen 8 communicating with the bottom of the intermediate wall 4.
The quantity of water-cooling screen 8 sets up according to the temperature demand, and in this embodiment, 2 water-cooling screens 8 have been set up in parallel in the decline passageway 1.
A convection heating surface 12 is arranged in the rising channel 2.
The flue gas turns to room 11 and is the hopper-shaped, and flue gas turns to room 11 left side and is first turn to face 11-1, and flue gas turns to room 11 right side and is second turn to face 11-2.
The front wall 3, the middle partition wall 4, the rear wall 5, the front side wall 6, the rear side wall 7 and the water screen 8 are all of membrane wall structures.
The working process of the utility model is as follows:
high-temperature flue gas generated by solid waste combustion enters a descending channel 1 of a radiation cooling chamber from a flue gas inlet, is subjected to heat exchange with a radiation heating surface formed by a front wall 3, a middle partition wall 4, a front side wall 6 and a water screen 8, the temperature of the flue gas is reduced, then the flue gas enters an ascending channel 2 provided with a convection heating surface 12 after turning of a first turning surface 11-1 and a second turning surface 11-2 in a turning chamber, and is discharged out of the radiation cooling chamber from a flue gas outlet after the heat exchange.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.
Claims (9)
1. A radiation cooling chamber structure with a built-in water-cooling screen is characterized by comprising a descending channel (1) and an ascending channel (2), wherein the lower parts of the descending channel (1) and the ascending channel (2) are respectively provided with a descending flue gas outlet and an ascending flue gas inlet, the bottoms of the descending flue gas outlet and the ascending flue gas inlet are communicated with a flue gas turning chamber (11), the descending channel (1) is composed of a front wall (3), a front side wall (6) and a middle partition wall (4), the upper part of the descending channel (1) is provided with a flue gas inlet (9), the ascending channel (2) is composed of the middle partition wall (4), a rear wall (5) and a rear side wall (7), and the upper part of the ascending channel (2) is provided with a flue gas outlet (10); the number of the front side walls (6) is two, the front side walls are arranged in parallel, and two ends of each front side wall (6) are respectively connected with the front wall (3) and the partition wall (4); the upper part of the intermediate wall (4) is of a bending structure; the upper part of the middle partition wall (4) is connected with the top end of the front wall (3); the number of the rear side walls (7) is two, the rear side walls are arranged in parallel, and two ends of each rear side wall (7) are respectively connected with the rear wall (5) and the partition wall (4); the upper part of the rear wall (5) is of a bending structure; the upper part of the rear wall (5) is connected with the upper part of the intermediate wall (4); a convection heating surface (12) is arranged in the ascending channel (2), and a water cooling screen (8) is arranged in the descending channel (1).
2. A radiant cooling chamber structure with built-in water screen as claimed in claim 1, characterized in that the upper part of the front wall (3) is provided with a flue gas inlet (9).
3. A radiant cooling chamber construction with built-in water screen as claimed in claim 1, characterized in that the upper part of the rear wall (5) is provided with a flue gas outlet (10).
4. A radiant cooling chamber structure with built-in water screen as defined in claim 1, characterized in that the descending path (1) and the ascending path (2) share the intermediate wall (4).
5. A radiant cooling chamber structure with built-in water screen as defined in claim 1, wherein the water screen (8) is communicated with the bottom of the intermediate wall (4).
6. A radiant cooling chamber structure with built-in water screen according to claim 1, characterized in that 2 or more water screens (8) are disposed in parallel in the downcomer channel (1).
7. A radiant cooling chamber construction with built-in water screen according to claim 1, characterized in that the flue gas turning chamber (11) is in the form of a bucket.
8. The radiant cooling chamber structure of built-in water screen as claimed in claim 7, characterized in that the left side of the flue gas turning chamber (11) is the first turning surface (11-1) and the right side of the flue gas turning chamber (11) is the second turning surface (11-2).
9. A radiant cooling chamber structure with built-in water screen according to claim 1, characterized in that the front wall (3), the intermediate wall (4), the rear wall (5), the front side wall (6), the rear side wall (7) and the water screen (8) are all membrane wall structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122586020.XU CN216203484U (en) | 2021-10-26 | 2021-10-26 | Radiation cooling chamber structure with built-in water-cooling screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122586020.XU CN216203484U (en) | 2021-10-26 | 2021-10-26 | Radiation cooling chamber structure with built-in water-cooling screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216203484U true CN216203484U (en) | 2022-04-05 |
Family
ID=80890163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122586020.XU Active CN216203484U (en) | 2021-10-26 | 2021-10-26 | Radiation cooling chamber structure with built-in water-cooling screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216203484U (en) |
-
2021
- 2021-10-26 CN CN202122586020.XU patent/CN216203484U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105164469A (en) | Fluidized bed boiler with integration of multifunctional inertial gravity separators and multiple types of furnaces | |
| CN105890177A (en) | Forced circulation hot water system with self-power-outage-protection function | |
| CN204830454U (en) | Many return strokes living beings hot -blast furnace | |
| CN216203484U (en) | Radiation cooling chamber structure with built-in water-cooling screen | |
| CN205717151U (en) | A kind of coal water slurry boiler | |
| CN205842615U (en) | A kind of biomass efficient horizontal boiler | |
| CN205746769U (en) | A kind of pulverized-coal fired boiler | |
| CN203949146U (en) | Combined screw thread pipe boiler | |
| CN204240318U (en) | A kind of three backhaul powder steam boilers | |
| CN103134036A (en) | Vertical type modular coal water slurry corner tube boiler | |
| CN106052426A (en) | Yellow phosphorus tail gas afterheat utilization device | |
| CN206320785U (en) | Forced circulation burning coal powder hot-water boiler | |
| CN109737371A (en) | A kind of twin furnace compound combustion expansion chamber corner tube boiler | |
| CN204240339U (en) | A kind of three backhaul powder hot-water boilers | |
| CN201233091Y (en) | Water-fire direct heat-exchanging highly effective multipurpose hot water unit | |
| CN205447692U (en) | Oxy -fuel combustion glass kiln flue gas surplus heat boiler | |
| CN204062978U (en) | A kind of two drum expansion chamber spray denitration corner tube boiler | |
| CN204062982U (en) | A kind of two drum spray denitration sedimentation separation corner tube boiler | |
| CN205102403U (en) | Three -return -stroke powder heat conduction oil boiler | |
| RU2132023C1 (en) | Hot-water boiler | |
| CN204345599U (en) | A kind of spray denitration boiler with expansion chamber | |
| CN213840869U (en) | Jacket combined boiler structure | |
| CN204153969U (en) | Screwed pipe assembly | |
| CN204062980U (en) | A kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler | |
| CN212409076U (en) | Water heating module and water heating equipment with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |