CN110285440A - A kind of recycle device of coal fired boiler of power plant smoke discharging residual heat - Google Patents
A kind of recycle device of coal fired boiler of power plant smoke discharging residual heat Download PDFInfo
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- CN110285440A CN110285440A CN201910596836.5A CN201910596836A CN110285440A CN 110285440 A CN110285440 A CN 110285440A CN 201910596836 A CN201910596836 A CN 201910596836A CN 110285440 A CN110285440 A CN 110285440A
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- Prior art keywords
- residual heat
- connecting tube
- collection pipe
- smoke evacuation
- water
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- 239000000779 smoke Substances 0.000 title claims abstract description 81
- 238000007599 discharging Methods 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000002918 waste heat Substances 0.000 claims abstract description 25
- 239000003517 fume Substances 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 14
- 235000019504 cigarettes Nutrition 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000002355 dual-layer Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003546 flue gas Substances 0.000 abstract description 18
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000004064 recycling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/028—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of at least one medium being helically coiled, the coils having a conical configuration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of recycle device of coal fired boiler of power plant smoke discharging residual heat, including water retaining cover and drainpipe；The smoke evacuation connecting tube is straight tube-like structure, and connection bottom of the tube of discharging fume is equipped with drainage cavity at one, and drainage cavity upper and lower ends pass through bolt respectively and are connected with coal-burning boiler smoke exhaust pipe；The drainage cavity bottom is equipped with rhone at one, and drainage cavity bottom is connected with rhone；Be conducive to be collected heat contained in flue gas, waste heat inside flue gas is set to be stored in the water flow of device internal flow, and the water flow of heating is delivered to inside external waste heat generating equipment by device and is generated electricity, utilization rate of waste heat inside flue gas is improved, heat waste is reduced；And the setting for cooperating residual heat collection pipe cone helical structure, the high-temperature flue gas that residual heat collection pipe end face outside can be enable to be circulated with position each inside smoke exhaust pipe are in contact, heat up to the water flow of residual heat collection pipe internal flow, improve device by utilizing waste heat collecting effect.
Description
Technical field
The invention belongs to heat recovery technology fields, more specifically, in particular to a kind of coal fired boiler of power plant smoke evacuation
The recycle device of waste heat.
Background technique
Coal fired boiler of power plant provides the generated energy of generating set, while a large amount of thermal energy are discharged with boiler chimney；Working as
Under the modern background for advocating energy-saving and emission-reduction energetically, how coal-burning boiler this for thermal power plant reduces smoke evacuation heat-energy losses, to save
About the energy, protection environment have particularly important meaning.Flue gas loss in boiler operatiopn is a most important heat-energy losses,
If the smoke exhaust heat of boiler can maximumlly being recycled and be used into generating set, boiler can be improved
Operational efficiency and economic benefit.
The inventors discovered that existing similar device, such as a kind of combustion gas that number of patent application 201620115099.4 is previously mentioned
Hot-water boiler smoke discharging residual heat advanced recycling system, including water pump, the water outlet of the water pump installs the first pipeline, described
First piping connection is to the import of energy-saving appliance, and the outlet of the energy-saving appliance is connected to by third pipeline with the water inlet of boiler, institute
Stating on the first pipeline also branch has the second pipeline, and second pipeline directly with third pipeline connection, is pacified on second pipeline
Equipped with controlled valve.Structure of the invention is compact, reasonable, easy to operate, and the water that water pump comes out is worked by energy-saving appliance, produced
The water supply boiler of high-temperature uses.It is easy for installation, it is at low cost.
A kind of power plant boiler smoke discharging residual heat that also such as number of patent application 201010274103.9 is previously mentioned recycles
Air heater is serially connected in boiler air input cold air duct by system, and high-temperature heat-exchanging is serially connected with drawing for boiler smoke flue
Between blower and booster fan, the first cryogenic heat exchanger is connected between the booster fan and desulfurizing tower of boiler smoke flue, high
The condensed water input/output terminal of warm heat exchanger passes through flow control valve respectively and is serially connected between condensation water heater, and the first low temperature changes
The medium input/output terminal of hot device and air heater is connected by circulating pump；This system boiler exhaust gas heat recovery effect
Significantly, boiler efficiency is effectively increased, boiler energy consumption is reduced, obtains larger economic benefit.
Based on the retrieval of patent at above-mentioned two, and device in the prior art is combined to find, above-mentioned apparatus actually makes
There are some problems during, include: device outer wall and coal-burning boiler smoke discharging pipe internal high temperature smoke contacts area
Smaller, waste heat contained in flue gas can not timely and effectively be conducted into the heat-conducting liquid of device internal flow, just with smoke evacuation
Pipeline is voluntarily externally discharged, be easy to cause the waste of waste heat；And device cleaning inside effect is very poor, is used for a long time in device
When, device outer wall is easy to attach cigarette ash thicker at one, is easy to influence device outer wall heat-conducting effect.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of recycling of coal fired boiler of power plant smoke discharging residual heat dresses
It sets, to solve existing similar device when in use, device outer wall and coal-burning boiler smoke discharging pipe internal high temperature smoke contacts area
Smaller, waste heat contained in flue gas can not timely and effectively be conducted into the heat-conducting liquid of device internal flow, just with smoke evacuation
Pipeline is voluntarily externally discharged, be easy to cause the waste of waste heat；And device cleaning inside effect is very poor, is used for a long time in device
When, device outer wall is easy to attach cigarette ash thicker at one, is easy the problem of influencing device outer wall heat-conducting effect.
The purpose and effect of the recycle device of coal fired boiler of power plant smoke discharging residual heat of the present invention, by technology in detail below
Means are reached:
A kind of recycle device of coal fired boiler of power plant smoke discharging residual heat, including smoke evacuation connecting tube, drainage cavity, draining
Hole, rhone, residual heat collection pipe, heat collecting sheet, high-temperature pump clean pipeline, high-pressure nozzle, valve, water retaining cover and drainpipe；It is described
Smoke evacuation connecting tube is straight tube-like structure, and connection bottom of the tube of discharging fume is equipped with drainage cavity at one, and drainage cavity upper and lower ends are distinguished
It is connected by bolt with coal-burning boiler smoke exhaust pipe；The drainage cavity bottom is equipped with rhone at one, and drainage cavity bottom and row
Sink is connected；The residual heat collection pipe is located at smoke evacuation connecting tube inner tip, and residual heat collection water inlet tube end and water outlet are equal
Outside smoke evacuation connecting tube, and heat collecting sheet is distributed on residual heat collection pipe；The high-temperature pump and residual heat collection water inlet tube end
It is connected, and the high-temperature pump other end is connected with outer loop water supply line, and high-temperature pump passes through power supply line and external control
Circuit is connected；The cleaning pipeline top part is two parts, and cleans at the top of pipeline and be located in smoke evacuation connecting tube, and clean
Duct bottom is connected with external high pressure water supply line；The valve is mounted on cleaning pipeline；The water retaining cover is located at smoke evacuation
It is 20 centimetres with smoke evacuation connection inside pipe wall spacing distance inside connecting tube, and on the outside of water retaining cover；The drainpipe is mounted on row
In cigarette connecting tube bottom outer wall, and drainpipe water outlet is connected with blow-off line.
Further, the residual heat collection pipe ring is wound on inside smoke evacuation connecting tube, and residual heat collection pipe one end and high-temperature pump
It is connected, and the residual heat collection pipe other end is connected by pipeline with external waste heat generating equipment.
Further, the residual heat collection pipe is Dual-layer structure, and two above and below residual heat collection pipe
Layer is cone helical structure.
Further, the residual heat collection pipe external rings are around being welded with many places heat collecting sheet, and heat collecting sheet is circular ring shape sheet
Structure.
Further, the cleaning pipeline is mounted on inside smoke evacuation connecting tube, and is cleaned duct bottom and be equipped with height at three
Spray head is pressed, and high-pressure nozzle is located at residual heat collection tube top portion.
Further, the water retaining cover is taper lid-like, and water retaining cover is mounted on smoke evacuation connecting tube internal drainage chamber
It is interior, and water retaining cover bottom and drainage cavity bottom interval distance are 20 centimetres, and water retaining cover diameter is greater than smoke evacuation connecting tube pipe
Mouth diameter.
Further, the drainage cavity bottom offers drainage hole at 12, and drainage hole bottom is connected with rhone,
And drainpipe is connected with rhone.
Compared with prior art, the invention has the following beneficial effects:
1. the setting of residual heat collection pipe is conducive to be collected heat contained in flue gas, make waste heat inside flue gas
It can be stored in the water flow of device internal flow, and the water flow of heating is delivered in external waste heat generating equipment by device
Portion generates electricity, and improves utilization rate of waste heat inside flue gas, reduces heat waste；And residual heat collection pipe is cooperated to bore helical structure
Setting, the high-temperature flue gas that each position is circulated inside residual heat collection pipe end face outside and smoke exhaust pipe can be enable to be in contact, it is right
The water flow of residual heat collection pipe internal flow heats up, and improves device by utilizing waste heat collecting effect.
2. the setting of heat collecting sheet is conducive to aggrandizement apparatus heating surface area, heat contained in flue gas is enable to pass through collection
Backing is preferably transmitted in device water flow inside, improves device water flow inside heating efficiency；And matching purge pipeline and height
The setting of spray head is pressed, can periodically be suspended in coal fired boiler of power plant in use, the cigarette ash attached to device outer wall by water flow
It is cleaned, so that device outer wall is kept clean, avoid thicker cigarette ash from being attached on device outer surface for a long time, influence outside device
Portion's heat conducting effect.
3. the setting of water retaining cover is conducive to stop water flow used in device internal washing, is stored in water flow
Inside device, avoids water flow from flowing into bottom coal-burning boiler smoke discharging pipe with smoke evacuation connecting tube, influence device using effect；
And cooperates the use of rhone and drainpipe, can will clean used water flow Self-discharged, water flow is avoided to become silted up for a long time
Long-pending portion in the device influences device inside smoke circulation effect.
Detailed description of the invention
Fig. 1 is axis view structural schematic diagram of the invention.
Fig. 2 is schematic cross-sectional view of the invention.
Fig. 3 is smoke evacuation connecting tube schematic cross-sectional view of the invention.
Fig. 4 is residual heat collection pipe axis view structural schematic diagram of the invention.
Fig. 5 is residual heat collection pipe overlooking structure diagram of the invention.
Fig. 6 is residual heat collection pipe axis view structural schematic diagram of the invention.
Fig. 7 is cleaning pipeline axis view structural schematic diagram of the invention.
Fig. 8 is water retaining cover axis view structural schematic diagram of the invention.
In figure, the corresponding relationship of component names and accompanying drawing number are as follows:
Smoke evacuation connecting tube -1, drainage cavity -101, drainage hole -102, rhone -103, residual heat collection pipe -2, heat collecting sheet -
201, high-temperature pump -3 cleans pipeline -4, high-pressure nozzle -5, valve -6, water retaining cover -7, drainpipe -8.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment:
As shown in attached drawing 1 to attached drawing 8:
The present invention provides a kind of recycle device of coal fired boiler of power plant smoke discharging residual heat, including smoke evacuation connecting tube 1, row
Water cavity 101, drainage hole 102, rhone 103, residual heat collection pipe 2, heat collecting sheet 201, high-temperature pump 3 clean pipeline 4, high-pressure nozzle
5, valve 6, water retaining cover 7 and drainpipe 8；The smoke evacuation connecting tube 1 is straight tube-like structure, and 1 bottom of connecting tube of discharging fume is equipped with one
Locate drainage cavity 101, and 101 upper and lower ends of drainage cavity pass through bolt respectively and are connected with coal-burning boiler smoke exhaust pipe；The draining
101 bottom of chamber is equipped with rhone 103 at one, and 101 bottom of drainage cavity is connected with rhone 103；The residual heat collection pipe 2
In smoke evacuation 1 inner tip of connecting tube, and 2 water inlet end of residual heat collection pipe and water outlet are respectively positioned on outside smoke evacuation connecting tube 1, and are collected
Backing 201 is distributed on residual heat collection pipe 2；The high-temperature pump 3 is connected with 2 water inlet end of residual heat collection pipe, and high-temperature pump 3 is another
End is connected with outer loop water supply line, and high-temperature pump 3 is connected by power supply line with external control circuit；The cleaning
It is divided into two parts at the top of pipeline 4, and cleans at the top of pipeline 4 and be located in smoke evacuation connecting tube 1, and clean 4 bottom of pipeline and outside
High service pipeline is connected；The valve 6 is mounted on cleaning pipeline 4；The water retaining cover 7 is located inside smoke evacuation connecting tube 1,
And 7 outside of water retaining cover and smoke evacuation 1 inner wall spacing distance of connecting tube are 20 centimetres；The drainpipe 8 is mounted on smoke evacuation connecting tube 1
In bottom outer wall, and 8 water outlet of drainpipe is connected with blow-off line.
Wherein, the residual heat collection pipe 2 is looped around inside smoke evacuation connecting tube 1, and 2 one end of residual heat collection pipe and high-temperature pump 3
It is connected, and 2 other end of residual heat collection pipe is connected by pipeline with external waste heat generating equipment；Specific effect, can pass through
Heat contained in 2 pairs of smoke evacuation 1 inside smokes of connecting tube of residual heat collection pipe is collected, to 2 internal flow of residual heat collection pipe
Water flow heated, and the water flow of heating is delivered to inside external waste heat generating equipment and carries out power generation operation, played to cigarette
The recycling effect of waste heat inside gas.
Wherein, the residual heat collection pipe 2 is Dual-layer structure, and 2 upper layer and lower layer of residual heat collection pipe are cone spiral knot
Structure；Specific effect, can enable to discharge fume high-temperature flue gas that the 1 each position in inside of connecting tube is circulated preferably with residual heat collection pipe 2
End face outside is in contact, and is collected to heat contained in flue gas, improves residual heat collection effect.
Wherein, 2 external rings of residual heat collection pipe are around being welded with many places heat collecting sheet 201, and heat collecting sheet 201 is circular ring shape piece
Shape structure；Specific effect, it is possible to increase 2 outside of residual heat collection pipe and high-temperature flue gas contact area enable flue gas internal heat to lead to
The conduction of heat collecting sheet 201 is crossed into 2 water flow inside of residual heat collection pipe, improves 2 water flow inside heating effect of residual heat collection pipe.
Wherein, the cleaning pipeline 4 is mounted on inside smoke evacuation connecting tube 1, and is cleaned 4 bottom of pipeline and be equipped with high pressure at three
Spray head 5, and high-pressure nozzle 5 is located at 2 top of residual heat collection pipe；Specific effect can be conveyed high pressure water flow by cleaning pipeline 4
It is right by high-pressure nozzle 5 by water flow jet to 2 outer end face of residual heat collection pipe to 2 top high-voltage spray head 5 of residual heat collection pipe
The cigarette ash that 2 outer end face of residual heat collection pipe is attached is cleaned, and is made to keep clean outside residual heat collection pipe 2, is avoided thicker cigarette
Ash attaches on 2 outer surface of residual heat collection pipe for a long time, influences 2 heat conducting effect of residual heat collection pipe.
Wherein, the water retaining cover 7 is taper lid-like, and water retaining cover 7 is mounted on smoke evacuation 1 internal drainage chamber of connecting tube
In 101, and 7 bottom of water retaining cover and 101 bottom interval of drainage cavity distance are 20 centimetres, and 7 diameter of water retaining cover is greater than smoke evacuation
1 nozzle diameter of connecting tube；Specific effect can pass through 7 pairs of the water retaining cover ejected wash water stream progress come left by 1 top of connecting tubes of discharging fume
Stop, water stream is made to avoid water flow with smoke evacuation connecting tube 1 so that personnel are collected water flow to 7 peripheral edge of water retaining cover
It flows into bottom coal-burning boiler smoke discharging pipe, influences device using effect.
Wherein, 101 bottom of drainage cavity offers drainage hole 102 at 12, and 102 bottom of drainage hole and rhone
103 are connected, and drainpipe 8 is connected with rhone 103；Specific effect can will be arranged by rhone 103 and drainpipe 8
The water flow discharge stockpiled inside water cavity 101, avoids water flow from depositing for a long time portion in the device, influences device inside smoke circulation effect
Fruit.
The specifically used mode and effect of the present embodiment:
Water flow is extracted to smoke evacuation 1 inside residual heat collection of connecting tube in the use of the present invention, staff starts high-temperature pump 3
In pipe 2, the heat collecting sheet 201 being equipped with by 2 outer wall of residual heat collection pipe and 2 outer wall of residual heat collection pipe is in coal-burning boiler smoke exhaust pipe
Heat collection contained in portion's flue gas, and conduct heat in 2 internal flow water flow of residual heat collection pipe, realization flows into water
Row heating operation；Next the hot water after heating flows into external pipe with residual heat collection pipe 2, and passes through external pipe for hot water
It is delivered to external waste heat generating equipment to generate electricity by the heat of hot water, improves the recycling effect of waste heat inside flue gas；To
When coal-burning boiler break-off, staff can Open valve 6, make clean 4 water flow inside of pipeline be delivered in high-pressure nozzle 5,
And 2 end face outside of residual heat collection pipe is attached by water flow jet to 2 end face outside of residual heat collection pipe by high-pressure nozzle 5
Cigarette ash cleaned, ensure 2 outside heat-conducting effect of residual heat collection pipe；Water flow used in cleaning passes through smoke evacuation 1 bottom of connecting tube
Portion's rhone 103 voluntarily flows into inside drainpipe 8, ensuring equipment inside smoke circulation effect.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application
It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (7)
1. a kind of recycle device of coal fired boiler of power plant smoke discharging residual heat, it is characterised in that: coal fired boiler of power plant row
The recycle device of cigarette waste heat includes discharging fume connecting tube (1), drainage cavity (101), drainage hole (102), and rhone (103) is remaining
Hot collecting pipe (2), heat collecting sheet (201), high-temperature pump (3), clean pipeline (4), high-pressure nozzle (5), valve (6), water retaining cover (7) and
Drainpipe (8)；The smoke evacuation connecting tube (1) is straight tube-like structure, and connecting tube (1) bottom of discharging fume is equipped with drainage cavity at one
(101), and drainage cavity (101) upper and lower ends pass through bolt respectively and are connected with coal-burning boiler smoke exhaust pipe；The drainage cavity
(101) bottom is equipped with rhone (103) at one, and drainage cavity (101) bottom is connected with rhone (103)；The waste heat is received
Collector (2) is located at smoke evacuation connecting tube (1) inner tip, and residual heat collection pipe (2) water inlet end and water outlet are respectively positioned on smoke evacuation connection
It is external to manage (1), and heat collecting sheet (201) is distributed on residual heat collection pipe (2)；The high-temperature pump (3) and residual heat collection pipe (2) into
Water end (W.E.) is connected, and high-temperature pump (3) other end is connected with outer loop water supply line, and high-temperature pump (3) passes through power supply line
It is connected with external control circuit；It is divided into two parts at the top of the cleaning pipeline (4), and cleans and be located at smoke evacuation at the top of pipeline (4)
In connecting tube (1), and cleans pipeline (4) bottom and be connected with external high pressure water supply line；The valve (6) is mounted on cleaning
On pipeline (4)；It is internal that the water retaining cover (7) is located at smoke evacuation connecting tube (1), and on the outside of water retaining cover (7) and in smoke evacuation connecting tube (1)
Wall spacing distance is 20 centimetres；The drainpipe (8) is mounted in smoke evacuation connecting tube (1) bottom outer wall, and drainpipe (8) goes out
Water end (W.E.) is connected with blow-off line.
2. the recycle device of coal fired boiler of power plant smoke discharging residual heat as described in claim 1, it is characterised in that: the waste heat
It is internal that collecting pipe (2) is looped around smoke evacuation connecting tube (1), and residual heat collection pipe (2) one end is connected with high-temperature pump (3), and remaining
Hot collecting pipe (2) other end is connected by pipeline with external waste heat generating equipment.
3. the recycle device of coal fired boiler of power plant smoke discharging residual heat as described in claim 1, it is characterised in that: the waste heat
Collecting pipe (2) is Dual-layer structure, and residual heat collection pipe (2) upper layer and lower layer are cone helical structure.
4. the recycle device of coal fired boiler of power plant smoke discharging residual heat as described in claim 1, it is characterised in that: the waste heat
Collecting pipe (2) external rings are around being welded with many places heat collecting sheet (201), and heat collecting sheet (201) is circular ring shape laminated structure.
5. the recycle device of coal fired boiler of power plant smoke discharging residual heat as described in claim 1, it is characterised in that: the cleaning
It is internal that pipeline (4) is mounted on smoke evacuation connecting tube (1), and cleans pipeline (4) bottom and be equipped with high-pressure nozzle at three (5), and is high
Pressure spray head (5) is located at the top of residual heat collection pipe (2).
6. the recycle device of coal fired boiler of power plant smoke discharging residual heat as described in claim 1, it is characterised in that: the water blocking
Covering (7) is taper lid-like, and water retaining cover (7) is mounted in smoke evacuation connecting tube (1) internal drainage chamber (101), and water blocking
Covering (7) bottom and drainage cavity (101) bottom interval distance is 20 centimetres, and water retaining cover (7) diameter is greater than smoke evacuation connecting tube (1)
Nozzle diameter.
7. the recycle device of coal fired boiler of power plant smoke discharging residual heat as described in claim 1, it is characterised in that: the draining
Chamber (101) bottom offers drainage hole at 12 (102), and drainage hole (102) bottom is connected with rhone (103), and
Drainpipe (8) is connected with rhone (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596836.5A CN110285440A (en) | 2019-07-02 | 2019-07-02 | A kind of recycle device of coal fired boiler of power plant smoke discharging residual heat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910596836.5A CN110285440A (en) | 2019-07-02 | 2019-07-02 | A kind of recycle device of coal fired boiler of power plant smoke discharging residual heat |
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| CN110285440A true CN110285440A (en) | 2019-09-27 |
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| CN201910596836.5A Pending CN110285440A (en) | 2019-07-02 | 2019-07-02 | A kind of recycle device of coal fired boiler of power plant smoke discharging residual heat |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033204A (en) * | 2020-08-26 | 2020-12-04 | 刘娜 | Industrial boiler waste heat utilization system |
| CN117006458A (en) * | 2023-09-18 | 2023-11-07 | 承德市生态环境局鹰手营子矿区分局 | Boiler flue gas waste heat recovery utilizes system of thermal power plant |
| CN117547918A (en) * | 2024-01-12 | 2024-02-13 | 国家能源集团煤焦化有限责任公司 | Tail gas treatment device for coal coking smoke exhaust pipeline |
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