CN109812825B - Ash cooler used in convection flue - Google Patents
Ash cooler used in convection flue Download PDFInfo
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- CN109812825B CN109812825B CN201910127708.6A CN201910127708A CN109812825B CN 109812825 B CN109812825 B CN 109812825B CN 201910127708 A CN201910127708 A CN 201910127708A CN 109812825 B CN109812825 B CN 109812825B
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Abstract
The invention discloses an ash cooler used in a convection flue, which relates to the technical field of ash coolers and comprises the following components: the top of the box body is provided with a feeding hole, and the bottom of the box body is provided with a discharging hole; the heat transfer portion, the heat transfer portion is provided with the multiunit, and adjacent two sets of the heat transfer portion is respectively the dislocation to be arranged on two inside walls of box, the heat transfer portion includes: one end of the heat exchange plate is arranged on the inner side wall of the box body and is higher than the other end of the heat exchange plate; and the water circulation unit is arranged on the heat exchange plate. The flying ash of the invention enters the box body from the feeding hole and then falls on the heat exchanging part to exchange heat with the heat exchanging part, and simultaneously, due to the inclined design of the heat exchanging part, the heat exchanging part can reduce the falling speed of the flying ash, thereby improving the retention time of the flying ash in the box body, leading the flying ash to be capable of carrying out sufficient heat exchange with the heat exchanging part and achieving the effect of improving the temperature reduction of the flying ash.
Description
Technical Field
The invention relates to the technical field of ash coolers, in particular to an ash cooler used in a convection flue.
Background
At present, most biomass boilers do not have ash coolers arranged in a convection flue, fly ash generated by the biomass boilers is not only piled everywhere, but also high-temperature fly ash is very dangerous and can cause secondary pollution to the environment even if the fly ash is piled everywhere; more importantly, a large amount of heat energy exists in the high-temperature ash, and the heat energy cannot be used by other parts due to no recovery, so that heat energy loss is caused, which is contrary to the principle of energy conservation and environmental protection.
In addition, some biomass boilers are also provided with an ash cooler in a convection flue, namely a cooling cylinder of the ash cooler consists of an inner cylinder and an outer cylinder, cooling water is introduced between the cylinders, and a cavity of the inner cylinder is a fine ash channel.
Disclosure of Invention
The invention aims to provide an ash cooler used in a convection flue, which solves the problem of short retention time of fly ash in a cylinder in the background art, and can prolong the retention time of the fly ash in the cylinder, thereby improving the cooling effect of the fly ash.
Based on the above purpose, the present invention provides an ash cooler for use in a convection flue, comprising:
the top of the box body is provided with a feeding hole, and the bottom of the box body is provided with a discharging hole;
the heat transfer portion, the heat transfer portion is provided with the multiunit, and adjacent two sets of the heat transfer portion is respectively the dislocation to be arranged on two inside walls of box, the heat transfer portion includes:
one end of the heat exchange plate is arranged on the inner side wall of the box body and is higher than the other end of the heat exchange plate;
the water circulation unit is arranged on the heat exchange plate;
the fly ash enters the box body from the feed inlet and then falls onto the heat exchange part to exchange heat with the heat exchange part, and simultaneously, the falling speed of the fly ash is reduced.
Optionally, the water circulation unit is a snakelike through groove arranged inside the heat exchange plate, and both ends of the snakelike through groove are respectively connected with a water inlet pipe and a water outlet pipe through metal hoses.
Optionally, a vibration part is further arranged below the heat exchanging part and used for vibrating the heat exchanging part.
Optionally, heat transfer board one end is equipped with the pivot, the pivot with box inside lateral wall is articulated mutually, the below of heat transfer board is equipped with the support and is used for supporting the heat transfer board, vibrations portion includes the motor, the motor passes through shaft coupling fixedly connected with pivot, fixedly connected with is the driving lever of L shape in the pivot, along with motor work drives the driving lever rotates, the driving lever jacks up earlier the one end of heat transfer board, along with the continuation of driving lever rotates, the driving lever with the separation of heat transfer board, the one end decline of heat transfer board, heat transfer board and support striking afterwards produce vibrations.
Optionally, the motor is a stepping motor, an angle sensor is arranged on the rotating shaft, a temperature sensor is arranged at the position of the discharging port, the angle sensor and the temperature sensor are electrically connected with a display, and the shifting lever supports the heat exchange plate by controlling the stepping motor to rotate a corresponding angle, so that the inclination angle of the heat exchange plate is adjusted.
Optionally, a water valve and a water pressure gauge are arranged on the water inlet pipe, and the water valve is located at the position of the upstream of the water pressure gauge according to the direction of water flow.
Optionally, a material distributing part is further arranged below the feed inlet, and the material distributing part is used for dispersing the fly ash.
Optionally, divide material portion to include the cell body, the cell body slope is arranged in the box, the one end fixed connection of cell body is in the interior top of box, the other end of cell body is equipped with the opening, the open end of cell body is equipped with a plurality of archs side by side, and two are adjacent be formed with the silo of crossing between the arch, in the L direction bellied length is increased to the middle part by both ends gradually.
From the above, it can be seen that the fly ash of the present invention enters the box body from the feeding port and then falls on the heat exchanging portion to exchange heat with the heat exchanging portion, and meanwhile, due to the inclined design of the heat exchanging portion, the heat exchanging portion can reduce the falling speed of the fly ash, so as to increase the residence time of the fly ash in the box body, and the fly ash can perform sufficient heat exchange with the heat exchanging portion, thereby achieving the effect of increasing the temperature reduction of the fly ash.
Drawings
FIG. 1 is a schematic structural diagram of a case according to an embodiment of the present invention;
FIG. 2 is a top view of the heat exchange plate of FIG. 1;
fig. 3 is a plan view of the distributing portion in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
An ash cooler for use in a convection flue, comprising: the top of the box body is provided with a feeding hole, and the bottom of the box body is provided with a discharging hole; the heat transfer portion, the heat transfer portion is provided with the multiunit, and adjacent two sets of the heat transfer portion is respectively the dislocation to be arranged on two inside walls of box, the heat transfer portion includes: one end of the heat exchange plate is arranged on the inner side wall of the box body and is higher than the other end of the heat exchange plate; and the water circulation unit is arranged on the heat exchange plate.
The flying ash enters the box body from the feed inlet and then falls onto the heat exchange part to exchange heat with the heat exchange part, and meanwhile, due to the inclined design of the heat exchange part, the heat exchange part can reduce the falling speed of the flying ash, so that the retention time of the flying ash in the box body is prolonged, the flying ash can perform sufficient heat exchange with the heat exchange part, and the cooling effect of the flying ash is improved.
In some embodiments, as shown in fig. 1 and 2, an ash cooler for use in a convection pass, comprises: the box body 1 is rectangular, the top of the box body 1 is provided with a feeding hole 11, and the bottom of the box body 1 is provided with a discharging hole 12; heat transfer portion 2, heat transfer portion 2 are used for carrying out the heat exchange with the flying dust of high temperature, reduce the temperature of flying dust, heat transfer portion 2 is provided with the multiunit, and adjacent two sets of heat transfer portion 2 misplaces respectively and arranges on two inside walls of box 1, and optional heat transfer portion 2 includes: one end of the heat exchange plate 21 is arranged on the inner side wall of the box body 1, and the end is higher than the other end of the heat exchange plate 21; a water circulation unit 22, wherein the water circulation unit 22 is arranged on the heat exchange plate 21.
The fly ash enters the box body 1 from the feed inlet 11 and then falls onto the heat exchange plate 21 to contact with the water circulation unit 22 on the heat exchange plate 21 for heat exchange, the optional water circulation unit 22 is a snake-shaped metal water pipe, and the metal water pipe can be fixedly connected to the top of the heat exchange plate 21 or embedded in the heat exchange plate 21. Meanwhile, due to the inclined design of the heat exchange plate 21, the heat exchange plate 21 can reduce the falling speed of the fly ash, so that the retention time of the fly ash in the box body 1 is prolonged, the fly ash can perform sufficient heat exchange with the heat exchange part 2, and the cooling effect of the fly ash is improved.
In some embodiments, the water circulation unit 22 is a serpentine through groove disposed inside the heat exchange plate 21, and both ends of the serpentine through groove are respectively connected with a water inlet pipe 24 and a water outlet pipe 25 through a metal hose 23. Cold water flows in from the water inlet pipe 24 and flows out from the water outlet pipe 25, and the fly ash contacts the heat exchange plate 21 and exchanges heat. Since each heat exchanging part 2 has an independent water circulation unit 22, each heat exchanging part 2 has an independent water circulation, and compared with the prior art in which only one water circulation is provided, the design further improves the heat exchange effect of the fly ash.
In some embodiments, a vibration portion 3 is further disposed below the heat exchanging portion 2, and the vibration portion 3 is configured to vibrate the heat exchanging portion 2. Heat transfer board 21 one end is equipped with connecting axle 26, connecting axle 26 with 1 inside wall of box is articulated mutually, the below of heat transfer board 21 is equipped with support 4 and is used for supporting heat transfer board 21, and is optional vibrations portion 3 includes motor (not drawn in the picture), the motor passes through shaft coupling fixedly connected with pivot 31, fixedly connected with is the driving lever 32 of L shape in the pivot 31, along with motor work drives driving lever 32 rotates, driving lever 32 jacks up earlier the one end of heat transfer board 21, along with driving lever 32's continuation rotates, driving lever 32 with the separation of heat transfer board 21, the one end of heat transfer board 21 descends, and heat transfer board 21 and support 4 striking produce vibrations afterwards. The generated vibration can be that the fly ash slides down to avoid the accumulation of the fly ash on the heat exchange plate 21, and of course, the rotation frequency of the shift lever 32 can be adjusted according to the requirement. The specific motor is electrically connected with the frequency converter, so that the rotation frequency of the motor is adjusted through the frequency converter.
In some embodiments, the motor is a stepping motor, an angle sensor (not shown) is installed on the connecting shaft 26, a temperature sensor (not shown) is disposed at the discharge port 12, the angle sensor and the temperature sensor are both electrically connected to a display (not shown), and the shift lever 32 is used to support the heat exchange plate 21 by controlling the stepping motor to rotate by a corresponding angle, so as to adjust the inclination angle of the heat exchange plate 21.
The temperature of the fly ash at the discharge port 12 is observed through the display, if the displayed temperature does not meet the ash discharge temperature requirement, the heat exchange plate 21 is supported by the deflector rod 32 by controlling the stepping motor to rotate by a corresponding angle, so that the inclination angle of the heat exchange plate 21 is adjusted, the inclination angle of the heat exchange plate 21 is reduced, the falling speed of the fly ash is further reduced, the fly ash is more fully subjected to heat exchange with the heat exchange part 2, and the purpose of further reducing the temperature of the fly ash is achieved. The rotation angle of the heat exchange plate 21 can be observed through the display, and the accuracy of rotation adjustment of the heat exchange plate 21 is improved.
In some embodiments, the water inlet pipe 24 is provided with a water valve 27 and a water pressure gauge 28, and the water valve 27 is located at a position upstream of the water pressure gauge 28 according to the direction of water flow. So can adjust the size of water pressure as required, save the water resource.
As shown in fig. 3, in some embodiments, a material separating portion 5 is further disposed below the feed port 11, and the material separating portion is used for dispersing the fly ash, so as to further improve the cooling effect of the fly ash. Optionally divide material portion 5 to include cell body 51, cell body 51 slope is arranged in the box 1, the one end fixed connection of cell body 51 is in the interior top of box 1, the other end of cell body 51 is equipped with the opening, the open end of cell body 51 is equipped with a plurality of archs 52 side by side, and two are adjacent be formed with material passing groove 53 between the arch 52, in the L direction protruding 53's length is increased to the middle part by both ends gradually. The fly ash falls into the groove body 51 from the feed inlet 11 and then falls down through the material passing grooves 53, so that the material distribution function is realized, and the cooling effect of the fly ash is improved.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (5)
1. An ash cooler for use in a convection flue, comprising:
the top of the box body is provided with a feeding hole, and the bottom of the box body is provided with a discharging hole;
the heat transfer portion, the heat transfer portion is provided with the multiunit, and adjacent two sets of the heat transfer portion is respectively the dislocation to be arranged on two inside walls of box, the heat transfer portion includes:
one end of the heat exchange plate is arranged on the inner side wall of the box body and is higher than the other end of the heat exchange plate;
the water circulation unit is arranged on the heat exchange plate;
the fly ash enters the box body from the feed inlet and then falls onto the heat exchange part to exchange heat with the heat exchange part, and simultaneously, the falling speed of the fly ash is reduced;
a vibration part is arranged below the heat exchange part and is used for vibrating the heat exchange part;
the vibration device comprises a box body, a vibration part and a vibration part, wherein a rotating shaft is arranged at one end of the heat exchange plate and is hinged with the inner side wall of the box body, a support is arranged below the heat exchange plate and is used for supporting the heat exchange plate, the vibration part comprises a motor, the motor is fixedly connected with the rotating shaft through a coupler, an L-shaped shifting lever is fixedly connected to the rotating shaft, the shifting lever is driven to rotate along with the work of the motor, the shifting lever jacks up one end of the heat exchange plate firstly, the shifting lever is separated from the heat exchange plate along with the continuous rotation of the shifting lever, one end of the heat exchange plate descends, and;
the motor is step motor, be equipped with angle sensor in the pivot, discharge gate department is equipped with temperature sensor, the equal electrically connected of angle sensor and temperature sensor has the display, rotates corresponding angle through controlling step motor, uses the driving lever supports the heat transfer board to adjust the inclination of heat transfer board.
2. An ash cooler for use in a convection flue as set forth in claim 1, wherein: the water circulation unit is a snakelike through groove arranged inside the heat exchange plate, and the two ends of the snakelike through groove are respectively connected with a water inlet pipe and a water outlet pipe through metal hoses.
3. An ash cooler for use in a convection flue as set forth in claim 2, wherein: the water inlet pipe is provided with a water valve and a water pressure gauge, and the water valve is positioned at the upstream of the water pressure gauge according to the direction of water flow.
4. An ash cooler for use in a convection flue as set forth in claim 1, wherein: and a material distributing part is also arranged below the feed inlet and is used for dispersing the fly ash.
5. An ash cooler for use in a convection flue according to claim 4, wherein: divide material portion to include the cell body, the cell body slope is arranged in the box, the one end fixed connection of cell body is in the interior top of box, the other end of cell body is equipped with the opening, the open end of cell body is equipped with a plurality of archs side by side, and two are adjacent be formed with the silo of crossing between the arch, in the L direction bellied length is increased to the middle part by both ends gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127708.6A CN109812825B (en) | 2019-02-21 | 2019-02-21 | Ash cooler used in convection flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127708.6A CN109812825B (en) | 2019-02-21 | 2019-02-21 | Ash cooler used in convection flue |
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| CN109812825A CN109812825A (en) | 2019-05-28 |
| CN109812825B true CN109812825B (en) | 2020-10-20 |
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| CN201910127708.6A Active CN109812825B (en) | 2019-02-21 | 2019-02-21 | Ash cooler used in convection flue |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005425A (en) * | 2000-06-23 | 2002-01-09 | Mitsubishi Heavy Ind Ltd | Smoke discharging device and assembling method of flow regulating plate for the same |
| CN201351926Y (en) * | 2008-11-10 | 2009-11-25 | 合肥合意环保科技工程有限公司 | Furnace-gas cooler |
| CN203294748U (en) * | 2013-06-14 | 2013-11-20 | 海宁恒创新材料有限公司 | Feeding device between hoister and screening machine on mortar production line |
| US9289790B2 (en) * | 2014-01-13 | 2016-03-22 | Alstom Technology Ltd | Spray dryer absorber vibrator device and method |
| CN107860016B (en) * | 2015-02-17 | 2019-07-26 | 周飞 | A kind of ash handling equipment of fluidization boiler back end ductwork |
| CN204894228U (en) * | 2015-08-19 | 2015-12-23 | 铜陵铜冠建安新型环保建材科技有限公司 | A cooling device for ready mixed mortar |
| CN106969639A (en) * | 2017-04-01 | 2017-07-21 | 中冶焦耐(大连)工程技术有限公司 | A kind of chamber type sintering ore deposit waste-heat recovery device |
| CN207688099U (en) * | 2017-12-21 | 2018-08-03 | 陕西羽顺热能技术设备有限公司 | A kind of environmental protection heat exchange power economized boiler |
| CN208012332U (en) * | 2018-01-19 | 2018-10-26 | 青岛三福有机复合肥料有限公司 | Produce prevention and control fruit tree diseases and pests type biological organic fertilizer dryer |
| CN208357038U (en) * | 2018-05-08 | 2019-01-11 | 东风商用车有限公司 | A kind of electrical dust collector device |
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