CN210718817U - Offline cleaning device for air preheater - Google Patents
Offline cleaning device for air preheater Download PDFInfo
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- CN210718817U CN210718817U CN201920961929.9U CN201920961929U CN210718817U CN 210718817 U CN210718817 U CN 210718817U CN 201920961929 U CN201920961929 U CN 201920961929U CN 210718817 U CN210718817 U CN 210718817U
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Abstract
The utility model discloses an air preheater off-line belt cleaning device, including bottom plate and washing pond, the top fixedly connected with fixed column of bottom plate, there is the fixed block on the top of fixed column through bearing swing joint, the fixed surface of fixed block is connected with the bracing piece, the tip fixedly connected with annular casing of bracing piece, the bottom fixedly connected with motor of annular casing, the power output shaft fixedly connected with winding roller of motor. This air preheater off-line belt cleaning device drives the winding roller rotation through the motor, can mention heat transfer component, utilizes annular casing to transport the top of wasing the pond, utilizes first shower nozzle will contain alkaline material water and spout, and the reuse brush is scrubbed, utilizes the second shower nozzle to carry out the clear water to heat transfer component and washes, utilizes the fan to carry out hot-blast weathering after washing to can clear up the ammonium bisulfate scale on the heat transfer component, improve the speed of clearance.
Description
Technical Field
The utility model relates to a mechanical equipment technical field specifically is an air preheater off-line belt cleaning device.
Background
After the existing boiler denitration equipment is put into operation, NH is generated due to the problems of ammonia escape and the like4HSO4Causes the problem of serious blockage of the air preheater, under the condition that the unit load is 660MW, the smoke side difference is about 1600Pa, however, after 8 months of operation, the pressure difference of the flue gas side of the air preheater is increased to 4500Pa, the pressure difference is increased rapidly, the rapid increase of the pressure difference of the air preheater causes overlarge negative pressure in the air-smoke system, the safe and stable operation of boiler equipment is seriously affected, the air preheater is blocked, the current of a fan is increased, the temperature of fresh air primary air and secondary air is too low, thereby causing no energy conservation and the rise of the exhaust gas temperature, and seriously affecting the load carrying capacity of the unit, so the shutdown is needed for washing the heat exchange element, for example, in the chinese patent with application number 201820146071.6, the soot blowing cleaning effect of the existing cleaning device for air pre-heater is relatively poor, resulting in general cleaning effect, so that the ammonium bisulfate scale is not thoroughly cleaned, and therefore, an air preheater off-line cleaning device is provided to solve the problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide an air preheater off-line belt cleaning device, possess the effectual advantage of clearance, solved the problem that current air preheater cleaning device has the defect.
The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides an air preheater off-line belt cleaning device, includes the bottom plate and washs the pond, its characterized in that: the top of the bottom plate is fixedly connected with a fixed column, the top end of the fixed column is movably connected with a fixed block through a bearing, the surface of the fixed block is fixedly connected with a supporting rod, the end part of the supporting rod is fixedly connected with an annular shell, the bottom of the annular shell is fixedly connected with a motor, a power output shaft of the motor is fixedly connected with a winding roller, a steel wire rope is wound on the surface of the winding roller, and the bottom end of the steel wire rope is fixedly connected with a grapple; the interior of the cleaning pool is fixedly connected with a first clapboard, the middle part of the cleaning pool is fixedly connected with a fixed rod, the top end of the fixed rod is movably connected with a cleaning frame through a bearing, one side of the interior of the cleaning pool is fixedly connected with a first water pump, the other side of the interior of the cleaning pool is fixedly connected with a second water pump, the back surface of the cleaning pool is fixedly connected with an air outlet pipe, the top part of the first water pump is fixedly connected with a first water pipe, one end of the first water pipe, far away from the first water pump, is fixedly connected with a first spray head, the top part of the second water pump is fixedly connected with a second water pipe, one end of the second water pipe, far away from the second water pump, is fixedly connected with a second spray head, the top end of the air outlet pipe is fixedly connected with an air outlet spray head, the bottom end of the air, the heating box is internally and fixedly connected with a heating pipe.
Preferably, the number of the supporting rods and the number of the motors are both multiple, and the motors are arranged at the bottom of the annular shell in an annular array.
Preferably, the quantity of first baffle is three, and three first baffle is the setting of annular array in the inside of wasing the pond, and is three first baffle will wash the pond and equally divide into three region, three the region is thick pond, essence washing tank and water receiving pond of washing respectively, first water pump is located thick pond of washing, the second water pump is located the essence washing pond, it is located the outside of water receiving pond to go out the tuber pipe, the lateral wall bottom difference fixedly connected with blowoff valve of thick pond, essence washing pond and water receiving pond.
Preferably, the bottom of the cleaning frame is in a grid shape, and three second partition plates are uniformly and fixedly connected in the cleaning frame.
Preferably, first water pipe and second water pipe all with the inner wall fixed connection who washs the pond, and the one end of first water pipe and second water pipe all is provided with the control valve.
Preferably, one side of the heating box is fixedly connected with an air inlet, and the surface of the heating pipe is wound with a heating wire.
Compared with the prior art, the utility model, have following advantage and effect: this air preheater off-line belt cleaning device, it is rotatory to drive the winding roller through the motor, can mention heat transfer element, utilizes annular casing to transport the top of wasing the pond, utilizes first shower nozzle will contain alkaline material water and spout, and the reuse brush is scrubbed, utilizes the second shower nozzle to carry out the clear water to heat transfer element and wash, utilizes the fan to carry out hot-blast weathering after washing to can clear up the ammonium bisulfate scale on the heat transfer element, improve the speed of clearance, guaranteed abluent quality, the utility model discloses the device clearance is effectual, and convenient to use is fit for using widely.
Drawings
FIG. 1 is a main sectional view of the structure of the present invention;
fig. 2 is a bottom view of the annular housing structure of the present invention;
FIG. 3 is a top view of the structure of the cleaning tank of the present invention;
FIG. 4 is a top view of the structure of the cleaning frame of the present invention;
fig. 5 is a diagram of the usage state of the device of the present invention.
In the figure: the device comprises a bottom plate 1, a cleaning pool 2, a rough cleaning pool 201, a fine cleaning pool 202, a water receiving pool 203, a fixing column 3, a fixing block 4, a supporting rod 5, an annular shell 6, a motor 7, a winding roller 8, a steel wire rope 9, a grapple 10, a first partition plate 11, a fixing rod 12, a cleaning frame 13, a second partition plate 1301, a first water pump 14, a second water pump 15, an air outlet pipe 16, a first water pipe 17, a first spray head 18, a second water pipe 19, a second spray head 20, an air outlet spray head 21, a fan 22, a heating box 23, a heating pipe 24, an air preheater 25 and a heat exchange element 2501.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1-5, the offline cleaning device for the air preheater in the embodiment includes a bottom plate 1 and a cleaning pool 2, wherein a fixed column 3 is fixedly connected to the top of the bottom plate 1, a fixed block 4 is movably connected to the top end of the fixed column 3 through a bearing, a supporting rod 5 is fixedly connected to the surface of the fixed block 4, an annular housing 6 is fixedly connected to the end of the supporting rod 5, a motor 7 is fixedly connected to the bottom of the annular housing 6, a power output shaft of the motor 7 is fixedly connected to a winding roller 8, a steel wire rope 9 is wound on the surface of the winding roller 8, and a grapple 10 is fixedly connected to; a first clapboard 11 is fixedly connected inside the cleaning pool 2, a fixed rod 12 is fixedly connected in the middle of the cleaning pool 2, the top end of the fixed rod 12 is movably connected with a cleaning frame 13 through a bearing, a first water pump 14 is fixedly connected on one side inside the cleaning pool 2, a second water pump 15 is fixedly connected on the other side inside the cleaning pool 2, an air outlet pipe 16 is fixedly connected on the back side of the cleaning pool 2, a first water pipe 17 is fixedly connected on the top of the first water pump 14, a first nozzle 18 is fixedly connected on one end of the first water pipe 17 far away from the first water pump 14, a second water pipe 19 is fixedly connected on the top of the second water pump 15, a second nozzle 20 is fixedly connected on one end of the second water pipe 19 far away from the second water pump 15, an air outlet nozzle 21 is fixedly connected on the top end of the air outlet pipe 16, a fan 22 is fixedly connected on the bottom end of the air outlet pipe 16, a heating pipe 24 is fixedly connected to the inside of the heating box 23.
The number of the supporting rods 5 and the number of the motors 7 are multiple, the motors 7 are arranged at the bottom of the annular shell 6 in an annular array, and the motors 7 are arranged to circularly take out the heat exchange elements 2501, so that the cleaning process can be continuously carried out; the number of the first partition plates 11 is three, the three first partition plates 11 are arranged inside the cleaning pool 2 in an annular array mode, the cleaning pool 2 is divided into three areas by the three first partition plates 11, the three areas are a rough cleaning pool 201, a fine cleaning pool 202 and a water receiving pool 203 respectively, the first water pump 14 is located in the rough cleaning pool 201, the second water pump 15 is located in the fine cleaning pool 202, the air outlet pipe 16 is located on the outer side of the water receiving pool 203, and the rough cleaning, the fine cleaning and the drying of the heat exchange element 2501 can be achieved through the arrangement of the rough cleaning pool 201, the fine cleaning pool 202 and the water receiving pool 203; the bottom ends of the outer side walls of the rough washing tank 201, the fine washing tank 202 and the water receiving tank 203 are respectively and fixedly connected with a drain valve, and the drain valves are convenient for draining sewage; the bottom of the cleaning frame 13 is in a grid shape, so that the flow of the liquid after washing is facilitated, three second partition plates 1301 are uniformly and fixedly connected in the cleaning frame 13, and the second partition plates 1301 can separate the heat exchange elements 2501 which are cleaned hygienically; the first water pipe 17 and the second water pipe 19 are both fixedly connected with the inner wall of the cleaning pool 2, and one end of each of the first water pipe 17 and the second water pipe 19 is provided with a control valve which can control the flow; one side fixedly connected with air intake of heating cabinet 23 is favorable to gaseous flow, and the surface winding of heating pipe 24 has the heater strip, can carry out rapid heating to gas to improve air-dry efficiency.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
When the air preheater 25 is stopped to run, the air preheater 25 is cylindrical, and when the air preheater 25 is running, the air preheater rotates slowly around the central shaft, which is a common knowledge that all the persons skilled in the art can clearly understand, the air preheater 25 is uniformly provided with a plurality of heat exchange elements 2501, after the air preheater 25 runs for a period of time, when the pressure difference of the air preheater 25 reaches a certain set value, 110-, the annular shell 6 is rotated to transport the heat exchange element 2501 to the upper part of the rough washing tank 201 of the washing tank 2, the winding roller 8 drives the steel wire rope 9 and the grapple 10 to place the heat exchange element 2501 in the washing frame 13 above the rough washing tank 201, water containing alkaline materials and clean water are respectively arranged in the rough washing tank 201 and the fine washing tank 202, the water containing the alkaline materials is transported to the inside of the first water pipe 17 by utilizing the first water pump 14, the heat exchange element 2501 is washed by utilizing the first spray head 18, the alkaline materials can be sprayed on the ammonium bisulfate scale at the blockage position, the ammonium bisulfate scale and the alkaline materials are reacted to generate ammonium sulfate scale, the adhesion force of the ammonium sulfate scale is not strong, so that impurities can be conveniently cleaned, the impurities are washed by utilizing the brush, then the washing frame 13 is rotated, the heat exchange element 2501 is rotated to the upper part of the fine washing tank 202, the clean water is pumped out by utilizing the second water pump 15, and the second spray head 20 is used for washing the clean water of the heat exchange, after the washing is completed, the cleaning frame 13 is rotated to enable the heat exchange element 2501 to be positioned above the water receiving tank 203, the fan 22 is used for extracting hot air in the heating box 23, the air outlet spray head 21 is used for drying the heat exchange element 2501 in a hot air mode, water on the heat exchange element 2501 is dripped into the water receiving tank 203, after the heat exchange element 2501 is dried, the cleaning frame 13 is rotated to enable the heat exchange element 2501 to be positioned below the grabbing hook 10, the motor 7 is used for driving the winding roller 8 to rotate, the grabbing hook 10 is used for lifting the heat exchange element 2501, the annular shell 6 is rotated to enable the annular shell 6 to transport the heat exchange element 2501 to the upper portion of the air preheater 25, the motor 7 is used for driving the winding roller 8 to rotate, the heat exchange element 2501 can be placed into the air preheater 25, the operation is repeated, the heat exchange elements 2501 can be cleaned comprehensively, when the grabbing hook 10 extracts the heat exchange element 2501, one heat exchange element 2501 can be extracted from a plurality of grabbing hooks 10, then each heat exchange element 2501 is cleaned, and the circulation operation is carried out, so that the working efficiency can be improved, in the cleaning process of the heat exchange elements 2501, the cleaning frame 13 is a grid which can leak water, so that water sprayed by the first spray head 18 and the second spray head 20 is recycled when coarse and fine cleaning is carried out, the waste of resources is avoided, and sewage after the use can be discharged from the sewage discharge valve.
In conclusion, this air preheater off-line belt cleaning device, it is rotatory to drive winding roller 8 through motor 7, can mention heat exchange element 2501, utilize annular casing 6 to transport the top of wasing pond 2, utilize first shower nozzle 18 will contain alkaline material water and spout on heat exchange element, the reuse brush is scrubbed, utilize second shower nozzle 20 to carry out the clear water to heat exchange element 2501 and wash, it weathers to wash the back and utilize fan 22 to carry out hot-blast, thereby can clear up the ammonium bisulfate scale on heat exchange element 2501, improved the speed of clearance, guaranteed abluent quality, the utility model discloses the device clearance is effectual, convenient to use is fit for using widely.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications made by those skilled in the art without departing from the spirit and scope of the present invention should be construed as being included in the following claims.
Claims (6)
1. The utility model provides an air preheater off-line belt cleaning device, includes bottom plate (1) and washing pond (2), its characterized in that: the top of the bottom plate (1) is fixedly connected with a fixed column (3), the top end of the fixed column (3) is movably connected with a fixed block (4) through a bearing, the surface of the fixed block (4) is fixedly connected with a supporting rod (5), the end part of the supporting rod (5) is fixedly connected with an annular shell (6), the bottom of the annular shell (6) is fixedly connected with a motor (7), a power output shaft of the motor (7) is fixedly connected with a winding roller (8), a steel wire rope (9) is wound on the surface of the winding roller (8), and the bottom end of the steel wire rope (9) is fixedly connected with a grapple (10); the cleaning device is characterized in that a first partition plate (11) is fixedly connected inside the cleaning pool (2), a fixing rod (12) is fixedly connected in the middle of the cleaning pool (2), a cleaning frame (13) is movably connected to the top end of the fixing rod (12) through a bearing, a first water pump (14) is fixedly connected to one side inside the cleaning pool (2), a second water pump (15) is fixedly connected to the other side inside the cleaning pool (2), an air outlet pipe (16) is fixedly connected to the back of the cleaning pool (2), a first water pipe (17) is fixedly connected to the top of the first water pump (14), a first spray head (18) is fixedly connected to one end, far away from the first water pump (14), of the first water pipe (17), a second spray head (20) is fixedly connected to the top of the second water pump (15), and a second spray head (20) is fixedly connected to one end, far away from the second water pump (15), of the second water, the utility model discloses a fan, including go out the top fixedly connected with air-out shower nozzle (21) of tuber pipe (16), connecting pipe fixedly connected with fan (22) is passed through to the bottom of going out tuber pipe (16), pipeline fixedly connected with heating cabinet (23) is passed through to one side of fan (22), inside fixedly connected with heating pipe (24) of heating cabinet (23).
2. The air preheater off-line cleaning device according to claim 1, wherein: the number of the support rods (5) and the number of the motors (7) are multiple, and the motors (7) are arranged at the bottom of the annular shell (6) in an annular array mode.
3. The air preheater off-line cleaning device according to claim 1, wherein: the quantity of first baffle (11) is three, and three first baffle (11) are the annular array and set up in the inside of wasing pond (2), and is three first baffle (11) will wash pond (2) and equally divide into three region, three the region is for washing pond (201), fine purifiation pond (202) and water receiving pond (203) roughly respectively, first water pump (14) are located and roughly wash pond (201), second water pump (15) are located and finely wash pond (202), it is located the outside of water receiving pond (203) to go out tuber pipe (16), the lateral wall bottom difference fixedly connected with blowoff valve of roughly washing pond (201), fine purifiation pond (202) and water receiving pond (203).
4. The air preheater off-line cleaning device according to claim 1, wherein: the bottom of the cleaning frame (13) is in a grid shape, and three second partition plates (1301) are uniformly and fixedly connected into the cleaning frame (13).
5. The air preheater off-line cleaning device according to claim 1, wherein: first water pipe (17) and second water pipe (19) all with wash the inner wall fixed connection in pond (2), and the one end of first water pipe (17) and second water pipe (19) all is provided with the control valve.
6. The air preheater off-line cleaning device according to claim 1, wherein: one side fixedly connected with air intake of heating cabinet (23), the surface winding of heating pipe (24) has the heater strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920961929.9U CN210718817U (en) | 2019-06-25 | 2019-06-25 | Offline cleaning device for air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920961929.9U CN210718817U (en) | 2019-06-25 | 2019-06-25 | Offline cleaning device for air preheater |
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| Publication Number | Publication Date |
|---|---|
| CN210718817U true CN210718817U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920961929.9U Active CN210718817U (en) | 2019-06-25 | 2019-06-25 | Offline cleaning device for air preheater |
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| CN (1) | CN210718817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360871A (en) * | 2019-06-25 | 2019-10-22 | 华电电力科学研究院有限公司 | A kind of air preheater off-line cleaning device and its working method |
| CN115597319A (en) * | 2022-12-07 | 2023-01-13 | 蓬莱市蓬仙制冷空调有限公司（Cn） | Vacuum freeze dryer of quick clearance |
-
2019
- 2019-06-25 CN CN201920961929.9U patent/CN210718817U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360871A (en) * | 2019-06-25 | 2019-10-22 | 华电电力科学研究院有限公司 | A kind of air preheater off-line cleaning device and its working method |
| CN110360871B (en) * | 2019-06-25 | 2023-11-14 | 华电电力科学研究院有限公司 | Off-line cleaning device for air preheater and working method thereof |
| CN115597319A (en) * | 2022-12-07 | 2023-01-13 | 蓬莱市蓬仙制冷空调有限公司（Cn） | Vacuum freeze dryer of quick clearance |
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