CN215909069U - Steam heating drainage waste heat utilization device for electric dust and ash removal bucket - Google Patents
Steam heating drainage waste heat utilization device for electric dust and ash removal bucket Download PDFInfo
- Publication number
- CN215909069U CN215909069U CN202121455062.3U CN202121455062U CN215909069U CN 215909069 U CN215909069 U CN 215909069U CN 202121455062 U CN202121455062 U CN 202121455062U CN 215909069 U CN215909069 U CN 215909069U
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- Prior art keywords
- heater
- ash bucket
- electric dust
- bucket
- ash
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- 239000000428 dust Substances 0.000 title claims abstract description 44
- 238000010438 heat treatment Methods 0.000 title claims abstract description 30
- 239000002918 waste heat Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000002209 hydrophobic effect Effects 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 4
- 239000010962 carbon steel Substances 0.000 abstract description 4
- 241000270295 Serpentes Species 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000008236 heating water Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003657 drainage water Substances 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a steam heating and water draining waste heat utilization device for an electric dust removal ash bucket, which comprises an ash bucket heater, wherein one end of the ash bucket heater is connected with a steam boiler through a pipeline, and the other end of the ash bucket heater is connected with a water draining device through a pipeline; the water outlet of an ash bucket heater of an electric dust collection bucket is connected with a steam trap, one path of drain flows to a drain flash tank and is used during starting and accidental drainage, the other path of drain flows to a low-temperature heater, machine side condensed water is heated by the low-temperature heater, and the heated drain is pumped into the machine side condensed water to realize the recycling of the drain; when steam flows in the ash bucket heater, the steam flows into the four branch pipes of the shunt from the main pipe of the inlet end, and finally collects in the main pipe of the outlet end, wherein the branch pipes adopt small-pipe-diameter carbon steel pipes and are coiled into a snake shape to be tightly attached to the side wall of the electric dust removal ash bucket, so that the heat exchange area is effectively increased, and the utilization efficiency of energy in the steam heating and water drainage of the electric dust removal ash bucket is increased.
Description
Technical Field
The utility model relates to the technical field of waste heat utilization of an electric dust removal ash bucket, in particular to a steam heating drainage waste heat utilization device of the electric dust removal ash bucket.
Background
At present, the dust removal of coal-fired power plants generally adopts modes of an electric dust remover, a cloth bag dust remover or an electric bag composite dust remover and the like. The dust remover is used for catching and collecting dust in the flue gas, and then the dust falls into an ash bucket positioned at the lower part of the dust remover through a vibration beating or back blowing method for temporary storage. People usually install an ash bucket annular heating device around the lower part of an ash bucket of a dust remover, and the effect of the annular heating device is mainly to ensure that the temperature in the ash bucket is not lower than the dew point of flue gas, so as to avoid dust blockage caused by adhesion, compression or agglomeration. One heating mode is electric heating, namely electric energy is converted into heat energy by an electric heater to locally heat the ash bucket, and the mode has high energy consumption; the second is steam heating, that is, a part of high-temperature steam is led out from a steam turbine or other high-temperature steam sources and flows into a coil heater tightly attached to the outer wall of the ash bucket to locally heat the ash bucket.
Steam heating is the current comparatively general heating methods, and the hydrophobic flash vessel of general direct access boiler of current electric precipitation ash bucket steam heating not only wastes water, makes the moisturizing volume of boiler increase, also can cause energy loss. In order to utilize the waste heat of the electric dust and ash removing bucket, a steam heating and water draining waste heat utilization device of the electric dust and ash removing bucket is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steam heating drain waste heat utilization device of an electric dust and ash removing hopper, which is connected through a pipeline, wherein the heating drain is divided into two paths after passing through a drain, one path is introduced into a drain flash tank and is mainly used for drainage in starting and accidents, and the other path is connected to a side inlet of a low-temperature heater to heat condensed water.
The technical problem solved by the utility model is as follows:
how to constitute the hydrophobic waste heat utilization equipment of electrostatic precipitator ash bucket steam heating that can high-efficiently utilize electrostatic precipitator ash bucket waste heat through the direct connection cooperation of ash bucket heater, hydrophobic flash vessel and low temperature heating ware.
How to make every branch pipe all become snakelike coiling at electric precipitation ash bucket through the concrete setting of branch pipe, increase the heat transfer nep to increase the heat exchange efficiency of ash bucket heater.
The purpose of the utility model can be realized by the following technical scheme: a steam heating and water draining waste heat utilization device of an electric dust and ash removing bucket comprises an electric dust and ash removing bucket, wherein an ash bucket heater is arranged outside the electric dust and ash removing bucket, the outer wall of the electric dust and ash removing bucket is wrapped by the ash bucket heater, one end of the ash bucket heater is connected with a steam boiler through a pipeline, and the other end of the ash bucket heater is connected with a water drain device through a pipeline; the steam trap is provided with two outlets, one outlet is connected with a water trap flash tank through a pipeline, the other outlet is connected with a low-temperature heater through a pipeline, a water trap pump is installed at the water outlet of the low-temperature heater, and the water outlet of the water trap pump is communicated with a condensed water inlet of the low-temperature heater through a pipeline.
Furthermore, the ash bucket heater comprises a shell, the shell is made of stainless steel, the two ends of the interior of the shell are provided with mother pipes, and the middle parts of the two mother pipes are communicated with a pipeline for external connection; two be provided with four spinal branch pipes between the female pipe, each spinal branch pipe is all closely coiled on the outer wall of electric precipitation ash bucket, and four spinal branch pipes are range upon range of setting side by side.
Further, the outside diameter of the branch pipe is 32mm, and the inside diameter is 24 mm.
Furthermore, a heat insulation layer is arranged inside the shell and wraps each main pipe and each branch pipe.
Furthermore, heat insulation sleeves are wrapped on pipelines which are used for connecting the steam boiler, the ash bucket heater, the steam trap, the drainage flash tank and the low-temperature heater.
Furthermore, the shell comprises a fixed frame and four baffle plates, the baffle plates are hinged on the fixed frame through hinges, brackets are fixed at four corners of the fixed frame downwards, threaded rods are rotatably connected to the brackets, slide rods are fixedly connected to the brackets, and connecting plates are arranged on the slide rods; one end of the connecting plate is connected with the sliding rod in a sliding way, and the other end of the connecting plate is connected with the threaded rod in a threaded way; the threaded rod is fixedly provided with a bevel gear, the bracket is rotatably connected with a rotating handle, the rotating handle is also fixedly provided with the bevel gear, and the two bevel gears are meshed; articulated on the connecting plate have a bracing piece, and the one end that the connecting plate was kept away from to the bracing piece is articulated with the baffle.
Compared with the prior art, the utility model has the beneficial effects that:
1. the delivery port of the ash bucket heater of the electric dust removal ash bucket is connected with the steam trap, one way of drainage flows to the drainage flash tank and is used for drainage in starting and accidents, the other way of drainage flows to the low-temperature heater and heats the machine side condensate water through the low-temperature heater, the heated drainage is pumped into the machine side condensate water, the energy of the drainage is reused, the working medium is also recovered, the heating drainage recycling of the ash bucket is realized, and the effects of energy conservation and emission reduction are achieved.
2. When drainage flows in the ash bucket heater, the drainage flows into four branch pipes from a main pipe at an inlet end, and finally the main pipe at an outlet end collects, wherein the branch pipes adopt small-pipe-diameter carbon steel pipes and are coiled into a snake shape to be tightly attached to the side wall of the electric dust removal ash bucket, so that the heat exchange area is effectively increased, and the utilization efficiency of energy in the steam heating and drainage of the electric dust removal ash bucket is increased.
3. The rotating handle drives the connecting plate to move through the meshed bevel gears, and the hinged supporting rods are driven to prop up the baffle when the connecting plate moves upwards, so that the main pipe and the branch pipes are convenient to overhaul.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a top cross-sectional view of the hopper heater of the present invention;
FIG. 3 is a schematic view of a manifold according to the present invention;
FIG. 4 is a schematic view of the exterior of the housing of the present invention;
FIG. 5 is a partial schematic view of a stent according to the present invention.
In the figure: 1. a steam boiler; 2. an electric dust and ash removing bucket; 3. an ash bucket heater; 4. a steam trap; 5. a hydrophobic flash tank; 6. a low temperature heater; 7. a drain pump; 31. a housing; 32. a heat-insulating layer; 33. a main pipe; 34. a branch pipe; 310. a fixed mount; 311. a baffle plate; 312. turning a handle; 313. a support; 314. a slide bar; 315. a threaded rod; 316. a support rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a steam heating and water draining waste heat utilization device for an electric dust and ash removing bucket comprises an electric dust and ash removing bucket 2, an ash bucket heater 3 is arranged outside the electric dust and ash removing bucket 2, the outer wall of the electric dust and ash removing bucket 2 is wrapped by the ash bucket heater 3, one end of the ash bucket heater 3 is connected with a steam boiler 1 through a pipeline, and the other end of the ash bucket heater is connected with a water drain 4 through a pipeline; the steam trap 4 is provided with two outlets, one outlet is connected with a hydrophobic flash tank 5 through a pipeline, the other outlet is connected with a low-temperature heater 6 through a pipeline, a drain pump 7 is installed at the water outlet of the low-temperature heater 6, and the water outlet of the drain pump 7 is communicated with the condensed water inlet of the low-temperature heater 6 through a pipeline.
The ash bucket heater 3 comprises a shell 31, the shell 31 is made of stainless steel, the shell 31 comprises a fixed frame 310 and four baffle plates 311, the baffle plates 311 are hinged on the fixed frame 310 through hinges, four corners of the fixed frame 310 are downwards fixed with brackets 313, the brackets 313 are rotatably connected with threaded rods 315, the brackets 313 are fixedly connected with sliding rods 314, and the sliding rods 314 are provided with connecting plates; one end of the connecting plate is connected with the sliding rod 314 in a sliding way, and the other end of the connecting plate is in threaded connection with the threaded rod 315; the threaded rod 315 is fixedly provided with a bevel gear, the bracket 313 is rotatably connected with a rotating handle 312, the rotating handle 312 is also fixedly provided with the bevel gear, and the two bevel gears are meshed; a support rod 316 is hinged on the connecting plate, and one end of the support rod 316, which is far away from the connecting plate, is hinged with the baffle 311; one end of the shell 31 is an inlet end, the other end of the shell 31 is an outlet end, the two ends of the shell 31 are both provided with a main pipe 33, and the middle parts of the two main pipes 33 are both communicated with a pipeline for external connection; two be provided with four spinal branch pipes 34 between the female pipe 33, branch pipe 34 is the carbon steel pipe, and each branch pipe 34 is all closely coiled on the outer wall of electric precipitation ash bucket 2, and four spinal branch pipes 34 are range upon range of setting side by side.
The external diameter of branch pipe 34 is 32mm, and the internal diameter is 24mm, and branch pipe 34 of small pipe diameter is favorable to increasing the flow path of hydrophobic in branch pipe 34, increases the heat transfer time of hydrophobic and 2 outer walls of electric precipitation ash bucket to increase heat exchange efficiency.
An insulating layer 32 is arranged inside the shell 31, and each of the main pipes 33 and the branch pipes 34 is wrapped by the insulating layer 32 to prevent heat in the branch pipes 34 from dissipating.
The heat insulation sleeves are wrapped on the general pipelines among the steam boiler 1, the ash bucket heater 3, the steam trap 4, the water trap flash tank 5 and the low-temperature heater 6, and energy loss is reduced.
The working principle is as follows: when the utility model is used, the steam boiler 1, the ash bucket heater 3, the steam trap 4, the drainage flash tank 5, the low-temperature heater 6 and the drainage pump 7 are connected through pipelines, and heat-insulating sleeves are wrapped on the related pipelines to prevent energy loss; wherein, the rotating handle 312 drives the connecting plate to move through the engaged bevel gear, and when the connecting plate moves upwards, the hinged support rod 316 is driven to support the baffle 311, so that the main pipe 33 and the branch pipe 34 can be conveniently overhauled; the ash bucket heating steam is taken from boiler auxiliary steam, when drainage water flows in the ash bucket heater 3, the steam flows into four branched pipes 34 from a main pipe 33 at an inlet end, and finally is collected in a main pipe 33 at an outlet end, wherein the branched pipes 34 are small-pipe-diameter carbon steel pipes and are coiled in a snake shape and tightly attached to the side wall of the electric dust removal ash bucket 2, so that the heat exchange area is effectively increased, and the utilization efficiency of energy in the steam heating drainage water of the electric dust removal ash bucket 2 is increased; the heating water drain is divided into two paths after passing through the water trap 4, one path of the heating water drain enters the water drain flash tank 5 for starting and accident water drain, the other path of the heating water drain enters the low-temperature heater 6 for heating condensed water, the heated water drain is pumped into the machine side condensed water, the energy of the water drain is reused, the working medium is recovered, the heating water drain recycling of the ash bucket is realized, and the effects of energy conservation and emission reduction are achieved.
The electric elements related to the utility model are commercially available, and the working principle and the specific control mode of the electric elements are the prior art, so the electric elements are not described in the specification.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The steam heating and water draining waste heat utilization device for the electric dust and ash removing bucket comprises an electric dust and ash removing bucket (2), and is characterized in that an ash bucket heater (3) is arranged outside the electric dust and ash removing bucket (2), the outer wall of the electric dust and ash removing bucket (2) is wrapped by the ash bucket heater (3), one end of the ash bucket heater (3) is connected with a steam boiler (1) through a pipeline, and the other end of the ash bucket heater is connected with a water drain device (4) through a pipeline; the steam trap (4) is provided with two outlets, one outlet is connected with a hydrophobic flash tank (5) through a pipeline, the other outlet is connected with a low-temperature heater (6) through a pipeline, a hydrophobic pump (7) is installed at the water outlet of the low-temperature heater (6), and the water outlet of the hydrophobic pump (7) is communicated with the condensed water inlet of the low-temperature heater (6) through a pipeline.
2. The steam heating hydrophobic waste heat utilization device for the electric dust removal ash bucket according to claim 1, wherein the ash bucket heater (3) comprises a shell (31), two ends of the interior of the shell (31) are respectively provided with a main pipe (33), and the middle parts of the two main pipes (33) are communicated with a pipeline for external connection; four branch pipes (34) are arranged between the two main pipes (33), and each branch pipe (34) is tightly coiled on the outer wall of the electric dust and ash removing bucket (2).
3. The steam heating and water draining waste heat utilization device for the electric dust and ash removing bucket according to claim 2, wherein the outer diameter of the branch pipe (34) is 32mm, and the inner diameter of the branch pipe is 24 mm.
4. The steam heating hydrophobic waste heat utilization device for the electric dust and ash removal bucket according to claim 2, wherein a heat insulation layer (32) is arranged inside the shell (31), and each main pipe (33) and each branch pipe (34) are wrapped by the heat insulation layer (32).
5. The electric precipitation ash bucket steam heating drainage waste heat utilization device according to claim 1, characterized in that heat insulation sleeves are wrapped on pipelines which are used for connecting the steam boiler (1), the ash bucket heater (3), the steam trap (4), the drainage flash tank (5) and the low-temperature heater (6).
6. The steam heating and water draining waste heat utilization device for the electric dust and ash removing bucket according to claim 2, wherein the shell (31) comprises a fixed frame (310) and four baffle plates (311), the baffle plates (311) are hinged to the fixed frame (310) through hinges, four corners of the fixed frame (310) are downwards fixed with brackets (313), the brackets (313) are rotatably connected with threaded rods (315), the brackets (313) are fixedly connected with sliding rods (314), and the sliding rods (314) are provided with connecting plates; one end of the connecting plate is connected with the sliding rod (314) in a sliding way, and the other end of the connecting plate is connected with the threaded rod (315) in a threaded way; the threaded rod (315) is fixedly provided with a bevel gear, the bracket (313) is rotatably connected with a rotating handle (312), the rotating handle (312) is also fixedly provided with the bevel gear, and the two bevel gears are meshed; the connecting plate is hinged with supporting rods (316), and one end of each supporting rod (316), which is far away from the connecting plate, is hinged with a corresponding baffle (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121455062.3U CN215909069U (en) | 2021-06-29 | 2021-06-29 | Steam heating drainage waste heat utilization device for electric dust and ash removal bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121455062.3U CN215909069U (en) | 2021-06-29 | 2021-06-29 | Steam heating drainage waste heat utilization device for electric dust and ash removal bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215909069U true CN215909069U (en) | 2022-02-25 |
Family
ID=80288606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121455062.3U Withdrawn - After Issue CN215909069U (en) | 2021-06-29 | 2021-06-29 | Steam heating drainage waste heat utilization device for electric dust and ash removal bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215909069U (en) |
-
2021
- 2021-06-29 CN CN202121455062.3U patent/CN215909069U/en not_active Withdrawn - After Issue
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20220225 Effective date of abandoning: 20240122 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20220225 Effective date of abandoning: 20240122 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |