CN107795971A - Reliable natural circulation cooling convection recuperator, cooling system and afterheat boiler system - Google Patents
Reliable natural circulation cooling convection recuperator, cooling system and afterheat boiler system Download PDFInfo
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- CN107795971A CN107795971A CN201610790579.5A CN201610790579A CN107795971A CN 107795971 A CN107795971 A CN 107795971A CN 201610790579 A CN201610790579 A CN 201610790579A CN 107795971 A CN107795971 A CN 107795971A
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- cooling water
- cooling
- main pipe
- convection
- natural circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/104—Connection of tubes one with the other or with collectors, drums or distributors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes
- F22B37/141—Supply mains, e.g. rising mains, down-comers, in connection with water tubes involving vertically-disposed water tubes, e.g. walls built-up from vertical tubes
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of reliable natural circulation cooling convection recuperator, cooling system and afterheat boiler system, and the reliable natural circulation cooling convection recuperator includes：Cooling water distribution header, the cooling water of more parallel interval arrangements distribute main pipe, the heat convection standpipe that more parallel intervals are arranged, the cooling water of more parallel intervals arrangements collects main pipe and cooling water collects house steward.The natural circulation cooling convection recuperator of the present invention has ash-laden gas cooling effectiveness stable, ash-laden gas flow and the fluctuation of ash-laden gas high temperature can be born, and cooling water inflow in the heat convection standpipe in natural circulation cooling convection recuperator and cooling water flow velocity are directly proportional to the fluctuation of ash-laden gas flow and ash-laden gas temperature, so as to ensure that flue gas cools effect, and reclaim certain smoke heat energy；The service life length of the reliable natural circulation cooling convection recuperator of the present invention, can ensure that waste heat boiler equipment safety operation, deashing maintenance workload is low.
Description
Technical field
The present invention relates to technical field of heat exchange, more particularly to a kind of reliable natural circulation cooling convection recuperator, cooling
System and afterheat boiler system.
Background technology
Close arranging pipe convection recuperator at present, for afterheat boiler system, usual solid matter heat exchange of heat pipe is using level or with water
Flat angle is approximately less than 30 degree of settings, because the cooling water flow distribution of its each circulation cooling circuit is differed greatly, causes close arranging pipe to change
Each heat exchanger tube cooling effect of hot device is uneven, and indivedual heat exchanger tubes are washed away rear temperature overheating by high-temperature flue gas, cause heat exchanger tube to use
Service life reduction.And a kind of new natural circulating cooling close arranging pipe convection recuperator the defects of overcoming this kind equipment, it is domestic at present
It is or even external without such technical products；Current existing close arranging pipe convection recuperator is briefly described below.
Close arranging pipe convection recuperator, for afterheat boiler system, the heat exchanger tube of usual solid matter heat exchange of heat pipe using horizontal or
Band horizontal sextant angle is approximately less than 30 degree of settings, and the cooling water flow distribution of each circulation cooling circuit is differed greatly, and causes close arranging pipe
Each heat exchanger tube cooling effect of heat exchanger is uneven, and indivedual heat exchanger tubes are washed away rear temperature overheating by high-temperature flue gas, cause heat exchanger tube to make
Use service life reduction.Although this close arranging pipe convection recuperator is used widely in waste heat boiler industry, this close
Column defects in the presence of comb convection recuperator：
1. this close arranging pipe convection recuperator, because cannot be guaranteed that the cooling water inflow of each heat exchanger tube cooling circuit is evenly distributed,
Heat exchanger tube is washed away by high-temperature flue gas, the cooling water heat absorption evaporating capacity in each heat exchanger tube, causes part heat exchanger tube to cool back
Road produces vapour locking operation and deteriorated, and influences and overheats repeatedly so that the heat exchanger tube for producing vapour locking is washed away by high-temperature flue gas, heat exchanger tube
Service life shortens, and influences waste heat boiler safe handling.
2. this close arranging pipe convection recuperator, it is that this is each because cannot be guaranteed that the assignment of traffic of each cooling circuit is equal
The heat convection pipe comb quantity of close arranging pipe convection recuperator is by severe constraints, so as to cause waste heat boiler close arranging pipe convection current to change
The increasing number of hot device, make the cooling system of waste heat boiler complicated, to ensuring that waste heat boiler safe operation is unfavorable.
3. this close arranging pipe convection recuperator, if system space limitation reason, it is necessary to arranged using the heat convection of high quantity
Guan Shi, unequal factor is distributed to ensure the cooling effect of each cooling circuit and preventing cooling circuit cooling water inflow, this
Class close arranging pipe convection recuperator must use compulsory circulative cooling, and cooling system needs to increase configuration hot-water circulating pump and various
The equipment such as safety measure, complicate afterheat boiler system, to ensuring that waste heat boiler safe operation is unfavorable.
4. this close arranging pipe convection recuperator, because its solid matter heat exchanger tube is cloth horizontal or that 30 degree are approximately less than with horizontal sextant angle
Put, the high-temperature flue gas dustiness of usual waste heat boiler is also larger, when ash-laden gas washes away solid matter heat exchanger tube, solid matter heat exchanger tube it is every
Easy laying dust at the top of individual heat exchanger tube, cause the cooling circuit of cooling water to absorb heat and deteriorate, the overall use of close arranging pipe convection recuperator
Life-span declines.
5. this close arranging pipe convection recuperator, because its solid matter heat exchanger tube is cloth horizontal or that 30 degree are approximately less than with horizontal sextant angle
Put, it is thorough that the deashing of such waste heat boiler is difficult to deashing, equipment operation maintenance operating difficulties, so as to reduce waste heat boiler
Using the thermal efficiency and service life, cooling high-temperature fume can not meet dust collecting process requirement.
The content of the invention
In view of the above the shortcomings that prior art, it is an object of the invention to provide a kind of reliable natural circulation cooling pair
Heat exchanger, cooling system and afterheat boiler system are flowed, it is close existing for close arranging pipe convection recuperator of the prior art for solving
Row's heat exchanger tube easily ties dirt, and clear dirt is difficult, and waste heat boiler cooling system is excessively huge and complicated, and occupation area of equipment is also excessively
Huge, the UTILIZATION OF VESIDUAL HEAT IN to old equipment is transformed the problems such as making troubles.
In order to achieve the above objects and other related objects, the present invention provides a kind of reliable natural circulation cooling heat convection
Device, the reliable natural circulation cooling convection recuperator include：
Cooling water distribution header, the cooling water distribution header are horizontally disposed with, and one end is water inlet end；The cooling moisture
Multiple the first perforates being connected with inside it are provided with house steward inner side；
The cooling water distribution main pipe of more parallel interval arrangements, the cooling water distribution main pipe is horizontally disposed with, and one end is
Water inlet end；The cooling water distributes the water inlet end of main pipe with being fixedly connected on the inside of the cooling water distribution header, and described cold
But moisture is matched somebody with somebody is connected inside main pipe via first perforate with the inside of the cooling water distribution header；The cooling moisture
Upper surface with main pipe is provided with multiple the second perforates being connected with inside it；
The heat convection standpipe of more parallel interval arrangements, the heat convection standpipe are vertically arranged；The heat convection
The bottom of standpipe is fixedly connected with the upper surface of cooling water distribution main pipe, and the inside of the heat convection standpipe is via institute
The inside that the second perforate is stated with cooling water distribution main pipe is connected；
The cooling water of more parallel interval arrangements collects main pipe, and the cooling water collects main pipe and is horizontally placed on the convection current
The top of heat exchange standpipe, and it is corresponding up and down one by one with cooling water distribution main pipe；One end that the cooling water collects main pipe is
Water side；The lower surface that the cooling water collects main pipe is provided with multiple the 3rd perforates being connected with inside it, the cooling water
Collect the lower surface of main pipe with being fixedly connected at the top of the heat convection standpipe, and the cooling water collects the inside warp of main pipe
It is connected by the 3rd perforate with the inside of the heat convection standpipe；
Cooling water collects house steward, and the cooling water collects house steward and is horizontally disposed with, and one end is water side；The cooling water converges
Multiple the 4th perforates being connected with inside it are provided with the inside of collection house steward；The cooling water collects the inner side of house steward and the cooling
The water side that water collects main pipe is fixedly connected, and the cooling water collect the inside of house steward via the 4th perforate with it is described cold
But water collects the inside of main pipe and is connected.
As a kind of preferred scheme of the reliable natural circulation cooling convection recuperator of the present invention, the cooling water distribution is total
Pipe and the cooling water distribution same absolute altitude of main pipe；The cooling water collects main pipe and collects the same absolute altitude of house steward with the cooling water.
As a kind of preferred scheme of the reliable natural circulation cooling convection recuperator of the present invention, the cooling water distribution is total
The other end of pipe is fixed connection end, the fixed connection end of the cooling water distribution header and the cooling water closest with it
The water inlet end of distribution main pipe is fixedly connected, and the inside of the cooling water distribution header and the inside of cooling water distribution main pipe
It is connected.
As a kind of preferred scheme of the reliable natural circulation cooling convection recuperator of the present invention, the cooling water distribution is female
The other end of pipe is fixed connection end, and the fixed connection end of the cooling water distribution main pipe is changed with the convection current closest with it
The bottom of hot standpipe is fixedly connected, and the inside of cooling water distribution main pipe is connected with the inside of the heat convection standpipe
It is logical.
As a kind of preferred scheme of the reliable natural circulation cooling convection recuperator of the present invention, the cooling water collects mother
The other end of pipe is fixed connection end, and the cooling water collects the fixed connection end of main pipe and the convection current closest with it is changed
It is fixedly connected at the top of hot standpipe, and the cooling water collects the inside of main pipe and is connected with the inside of the heat convection standpipe
It is logical.
As a kind of preferred scheme of the reliable natural circulation cooling convection recuperator of the present invention, the cooling water collects always
The other end of pipe is fixed connection end, the fixed connection end of the cooling water convergence house steward and the cooling water closest with it
The water side for collecting main pipe is fixedly connected, and the inside of cooling water convergence house steward and the inside of cooling water convergence main pipe
It is connected.
As a kind of preferred scheme of the reliable natural circulation cooling convection recuperator of the present invention, the cooling water distribution is female
Length direction equidistantly distributed of the pipe along the cooling water distribution header；The heat convection standpipe distributes female along the cooling water
The length direction equidistantly distributed of pipe；The cooling water collect main pipe collect along the cooling water house steward length direction it is equidistant
Distribution.
As a kind of preferred scheme of the reliable natural circulation cooling convection recuperator of the present invention, the cooling water distribution is female
The water inlet end of pipe is fixedly connected with the inner side of the cooling water distribution header by welding manner；The bottom of the heat convection standpipe
Portion is fixedly connected with the upper surface of cooling water distribution main pipe by welding manner；The cooling water collects the lower surface of main pipe
It is fixedly connected with the top of the heat convection standpipe by welding manner；The cooling water collects house steward and converged with the cooling water
The water side of collection main pipe is fixedly connected by welding manner.
The present invention also provides a kind of reliable natural circulation cooling system, and the reliable natural circulation cooling system includes：
Reliable natural circulation cooling convection recuperator as described in above-mentioned either a program；The reliable natural circulation cooling
Convection recuperator is located in exhaust gases passes, and the length direction of the heat convection standpipe and the flow direction of flue gas are perpendicular；
Drum, positioned at the top of the reliable natural circulation cooling convection recuperator, the drum is built with cooling water conservancy project
Matter；
Cooling water down-comer, including water inlet end and water side；In the water inlet end and the drum of the cooling water down-comer
Portion is connected, and the water side of the cooling water down-comer is fixedly connected with the water inlet end of the cooling water distribution header, and described
The inside of cooling water down-comer is connected with the inside of the cooling water distribution header；
Cooling water tedge, including water inlet end and water side；The water inlet end of the cooling water tedge and the cooling water
The water side for collecting house steward is fixedly connected, and the inside of the cooling water tedge collects the inside phase of house steward with the cooling water
Connection；The water side of the cooling water tedge is connected with the inside of the drum.
As a kind of preferred scheme of the reliable natural circulation cooling system of the present invention, the water outlet of the cooling water down-comer
End is fixedly connected with the water inlet end of the cooling water distribution header by welding manner；The water inlet end of the cooling water tedge with
The water side that the cooling water collects house steward is fixedly connected by welding manner.
The present invention also provides a kind of afterheat boiler system, and the afterheat boiler system includes can described in any of the above-described scheme
The natural circulation cooling system leaned on.
As described above, reliable natural circulation cooling convection recuperator, cooling system and the afterheat boiler system of the present invention, tool
There is following beneficial effect：
Heat convection standpipe in the reliable natural circulation cooling convection recuperator of the present invention is rushed by high-temperature dust-containing flue gas
Brush, it is this high-temperature dust-containing flue gas when washing away heat convection standpipe because heat convection pipe is that riser forms are arranged, the flue dust being blocked
It is settled down to directed along heat convection standpipe longitudinal direction outer surface of tube wall below new natural circulating cooling convection recuperator bottom
Holding dirt space, i.e., flue dust is not easy laying dust on heat convection standpipe, so that the heat transfer efficiency of heat convection standpipe is stable, it is unlikely
In burning out heat convection standpipe because of high temperature so that the natural circulation cooling convection recuperator has higher reliability.
The reliable natural circulation cooling system of the present invention realizes natural circulation cooling, can ensure that the long-term of heat convection pipe
Cooling effect, realizes waste heat boiler device miniaturization, and natural circulation cooling convection recuperator can be according to technique site layout project feelings
Condition, natural circulation cooling convection recuperator is arranged in the exhaust gases passes of technology arrangement, it is achieved thereby that afterheat boiler system
Miniaturization and simplification.
Brief description of the drawings
Fig. 1 is shown as the structural representation of the reliable natural circulation cooling convection recuperator provided in the embodiment of the present invention one
Figure.
Fig. 2 is shown as the structural representation of the reliable natural circulation cooling system provided in the embodiment of the present invention two.
Component label instructions
1 reliable natural circulation cooling convection recuperator
11 cooling water distribution headers
12 cooling waters distribute main pipe
13 heat convection standpipes
14 cooling waters collect main pipe
15 cooling waters collect house steward
2 drums
3 cooling water down-comers
4 cooling water tedges
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
Fig. 1 is referred to Fig. 2.It should be noted that the diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, though only showing the component relevant with the present invention in diagram rather than according to package count during actual implement
Mesh, shape and size are drawn, and kenel, quantity and the ratio of each component can be a kind of random change during its actual implementation, and its
Assembly layout kenel may also be increasingly complex.
Embodiment one
Referring to Fig. 1, the present invention provides a kind of reliable natural circulation cooling convection recuperator 1, the reliable Natural Circulation
Cooling convection recuperator 1 includes：Cooling water distribution header 11, the cooling water distribution header 11 are horizontally disposed, and one end be into
Water end (W.E.)；The inner side of cooling water distribution header 11 is provided with multiple the first perforates being connected with inside it；More parallel interval rows
The cooling water distribution main pipe 12 of cloth, the cooling water distribution main pipe 12 is horizontally disposed, and one end is water inlet end；The cooling moisture
Water inlet end with main pipe 12 is fixedly connected with the inner side of the cooling water distribution header 11, and in cooling water distribution main pipe 12
Portion is connected via first perforate with the inside of the cooling water distribution header 11；The cooling water distributes the upper of main pipe 12
Surface is provided with multiple the second perforates being connected with inside it；The heat convection standpipe 13 of more parallel interval arrangements, it is described right
Stream heat exchange standpipe 13 is vertically arranged, i.e., described heat convection standpipe 13 and the cooling water distribution header 11 and the cooling moisture
It is perpendicular with main pipe 12；The bottom of the heat convection standpipe 13 and the upper surface of cooling water distribution main pipe 12 are fixed and connected
Connect, and the inside of the heat convection standpipe 13 is connected via second perforate with the inside of cooling water distribution main pipe 12
It is logical；The cooling water of more parallel interval arrangements collects main pipe 14, and the cooling water collects main pipe 14 and is horizontally placed on the convection current
The top of heat exchange standpipe 13, and be correspondingly arranged up and down one by one with cooling water distribution main pipe 12；The cooling water collects main pipe
14 one end is water side；The cooling water collect main pipe 14 lower surface be provided with it is multiple be connected with inside it the 3rd open
Hole, the lower surface that the cooling water collects main pipe 14 is fixedly connected with the top of the heat convection standpipe 13, and the cooling
The inside that water collects main pipe 14 is connected via the 3rd perforate with the inside of the heat convection standpipe 13；Cooling water collects
House steward 15, and the cooling water collects house steward 15 and is horizontally disposed with, and one end is water side；The cooling water collects the inner side of house steward 15 and set
There are multiple the 4th perforates being connected with inside it；The cooling water collects the inner side of house steward 15 and the cooling water collects main pipe
14 water side is fixedly connected, and the cooling water collects the inside of house steward 15 via the 4th perforate and cooling water remittance
The inside of collection main pipe 14 is connected.The every convection current of the reliable natural circulation cooling convection recuperator 1 of the present invention is changed
The cooling water inflow distribution of hot standpipe 13 is equal, so that the every heat convection standpipe 13 does not overheat, natural circulation cooling
Hydrodynamic characterisitic is stable, improves the safety and reliability of the reliable natural circulation cooling convection recuperator.
As an example, multiple first perforates are in the inner side equidistantly distributed of cooling water distribution header 11, and it is multiple
The absolute altitudes such as first perforate.It should be noted that the absolute altitude such as multiple described first perforates refers to multiple first perforates
It is centrally located in same horizontal line.
As an example, second perforate positioned at the upper surface of the same cooling water distribution main pipe 12 is located at always
On line, and along the cooling water distribute main pipe 12 length direction equidistantly distributed.
As an example, the 3rd perforate for collecting the lower surface of main pipe 14 positioned at the same cooling water is located at same straight line
On, and collect along the cooling water length direction equidistantly distributed of main pipe 14.
As an example, multiple 4th perforates collect the inner side equidistantly distributed of house steward 15 in the cooling water, and it is multiple
The absolute altitudes such as the 4th perforate.It should be noted that the absolute altitude such as multiple described 4th perforates refers to multiple 4th perforates
It is centrally located in same horizontal line.
As an example, the cooling water distribution header 11 and cooling water distribution 12 same absolute altitude of main pipe；The cooling water
Collect main pipe 14 and collect 15 same absolute altitude of house steward with the cooling water.It should be noted that the cooling water distribution header 11 and institute
State cooling water distribution main pipe 12 and refer to that the longitudinal center line of the cooling water distribution header 11 and the cooling water distribute with absolute altitude
In the longitudinal center line of main pipe 12 is generally aligned in the same plane, the cooling water collects main pipe 14, and with the cooling water to collect house steward 15 same
Absolute altitude refers to the longitudinal center line position that the cooling water collects the longitudinal center line of main pipe 14 and the cooling water collects house steward 15
In in same plane.
As an example, the quantity of the cooling water distribution main pipe 12 can be N roots, N is the integer more than or equal to 1；For
Be easy to illustrate, only distribute the quantity of main pipe 12 as three using the cooling water in Fig. 1 as an example, but in actual example,
The quantity of the cooling water distribution main pipe 12 is not limited, and can be one, two, four, five, even more.
As an example, it is fixed on the number of the heat convection standpipe 13 of every cooling water distribution main pipe 12 upper surface
Amount can be N roots, and N is the integer more than or equal to 1；For convenience of description, only to be fixed on the every cooling moisture in Fig. 1
The quantity of the heat convection standpipe 13 with the upper surface of main pipe 12 be four as an example, but in actual example, not with this
It is limited, can is one, two, three, five, it is even more.
As an example, the quantity that the cooling water collects main pipe 14 can be N roots, N is the integer more than or equal to 1；For
Be easy to illustrate, in Fig. 1 the quantity of main pipe 14 is only collected as three using the cooling water as an example, but in actual example,
The quantity that the cooling water collects main pipe 14 is not limited, and can be one, two, four, five, even more.
As an example, the other end of the cooling water distribution header 11 is fixed connection end, the cooling water distribution header
11 fixed connection end is fixedly connected with the water inlet end of its closest cooling water distribution main pipe 12, and the cooling water
The inside of distribution header 11 is connected with the inside of cooling water distribution main pipe 12.With the number of cooling water distribution main pipe 12
Measure as N roots as an example, and being distributed from the water inlet end of the cooling water distribution header 11 to the cooling water of fixed connection end
Main pipe 12 is demarcated as first, second ... nth root, fixed connection end and the N of the cooling water distribution header 11 successively
The water inlet end of cooling water distribution main pipe 12 is fixedly connected described in root.Certainly, in other examples, the cooling water distribution header 11
Fixed connection end can also be cecum, i.e., the fixed connection end of described cooling water distribution header 11 is shut, cooling water described in N roots
Distribution main pipe 11 is equally distributed between water inlet end and the fixed connection end of the cooling water distribution header 11.
As an example, the other end of the cooling water distribution main pipe 12 is fixed connection end, the cooling water distributes main pipe
12 fixed connection end is fixedly connected with the bottom of its closest heat convection standpipe 13, and the cooling water distributes
The inside of main pipe 12 is connected with the inside of the heat convection standpipe 13.To be fixed on the every cooling water distribution main pipe 12
The quantity N roots of the heat convection standpipe 13 of upper surface are as an example, and from the water inlet end of cooling water distribution main pipe 12
The heat convection standpipe 13 to fixed connection end demarcates the nth root of position first, second ..., the heat convection successively
The fixed connection end of standpipe 13 is fixedly connected with the bottom of heat convection standpipe 13 described in nth root.Certainly, in other examples, institute
The fixed connection end for stating cooling water distribution main pipe 12 can also be cecum, i.e., the fixed connection end of described cooling water distribution main pipe 12
Shut, heat convection standpipe 13 described in N roots is equally distributed in the water inlet end of the cooling water distribution main pipe 12 with being fixedly connected
Between end.
As an example, the other end that the cooling water collects main pipe 14 is fixed connection end, the cooling water collects main pipe
14 fixed connection end is fixedly connected with the top of its closest heat convection standpipe 13, and the cooling water collects
The inside of main pipe 14 is connected with the inside of the heat convection standpipe 13.It is equally female to be fixed on the every cooling water distribution
The quantity N roots of the heat convection standpipe 13 of the upper surface of pipe 12 are as an example, and going out from cooling water distribution main pipe 12
Water end (W.E.) to the heat convection standpipe 13 of fixed connection end demarcates the nth root of position first, second ..., the cooling successively
The fixed connection end that water collects main pipe 14 is fixedly connected with the top of first heat convection standpipe 13, as shown in Figure 1；
In other examples, the fixed connection end that the cooling water collects main pipe 14 can also be with heat convection standpipe 13 described in nth root
Top is fixedly connected.Certainly, in other examples, the fixed connection end that the cooling water collects main pipe 14 can also be cecum, i.e.,
The fixed connection end that the cooling water collects main pipe 14 is shut, and heat convection standpipe 13 is equally distributed in described cold described in N roots
But water collects between water inlet end and the fixed connection end of main pipe 14.
As an example, the other end that the cooling water collects house steward 15 is fixed connection end, the cooling water converges house steward
15 fixed connection end is fixedly connected with the water side for collecting main pipe 14 with its closest described cooling water, and the cooling water
The inside for converging house steward 15 is connected with the inside of cooling water convergence main pipe 14.Collect the number of main pipe 14 with the cooling water
Measure as N roots as an example, and collecting water side to the cooling water of fixed connection end of house steward 15 from the cooling water and collecting
Main pipe 14 demarcates the nth root of position first, second ... successively, the cooling water collect the fixed connection end of house steward 15 with it is described
The water side that cooling water described in nth root collects main pipe 14 is fixedly connected.Certainly, in other examples, the cooling water collects always
The fixed connection end of pipe 15 can also be cecum, i.e., the fixed connection end that described cooling water collects house steward 15 is shut, cold described in N roots
But water collects main pipe 14 and is equally distributed between water inlet end and fixed connection end that the cooling water collects house steward 15.
As an example, length direction of the cooling water distribution main pipe 12 along the cooling water distribution header 11 equidistantly divides
Cloth；The heat convection standpipe 13 distributes the length direction equidistantly distributed of main pipe 12 along the cooling water；The cooling water converges
Collection main pipe 14 collects the length direction equidistantly distributed of house steward 15 along the cooling water.
As an example, the inner side of the water inlet end of cooling water distribution main pipe 12 and the cooling water distribution header 11 can be with
It is fixedly connected by welding manner；The bottom of the heat convection standpipe 13 and the upper surface of cooling water distribution main pipe 12 can
To be fixedly connected by welding manner；The cooling water collects the lower surface of main pipe 14 and the top of the heat convection standpipe 13
It can be fixedly connected by welding manner；The cooling water collect house steward 15 and the cooling water collect the water side of main pipe 14 can
To be fixedly connected by welding manner.
Embodiment two
Referring to Fig. 2, the present invention also provides a kind of reliable natural circulation cooling system, the reliable natural circulation cooling system
System includes：Reliable natural circulation cooling convection recuperator 1 as described in embodiment one, the reliable natural circulation cooling convection current
The concrete structure of heat exchanger 1 refers to embodiment one, is not repeated herein；The reliable natural circulation cooling convection recuperator 1
In exhaust gases passes, and the length direction of the heat convection standpipe 13 and the flow direction of flue gas are perpendicular, wherein, Fig. 2
In arrow direction be flue gas flow direction；Drum 2, the drum 2 is positioned at the reliable natural circulation cooling convection current
The top of heat exchanger 1, the drum 2 is built with cooling device of working medium；Cooling water down-comer 3, the cooling water down-comer 3 include into
Water end (W.E.) and water side；The water inlet end of the cooling water down-comer 3 inside the drum 2 with being connected, specifically, the cooling water
The water inlet end of down-comer 3 is connected via the bottom of the drum 2 with the inside of the drum 2, the cooling water down-comer 3
Water side is fixedly connected with the water inlet end of the cooling water distribution header 11, and the inside of the cooling water down-comer 2 with it is described
The inside of cooling water distribution header 11 is connected；Cooling water tedge 4, the cooling water tedge 4 include water inlet end and water outlet
End；The water side that the water inlet end of the cooling water tedge 4 collects house steward 15 with the cooling water is fixedly connected, and the cooling
The inside that the inside of riser 4 waterborne collects house steward 15 with the cooling water is connected；The water side of the cooling water tedge 4 with
The inside of the drum 2 is connected, specifically, top and institute of the water side of the cooling water tedge 4 via the drum 2
The inside for stating drum 2 is connected.
As an example, the water side of the cooling water down-comer 3 and the water inlet end of the cooling water distribution header 11 pass through
Welding manner is fixedly connected；The water side that the water inlet end of the cooling water tedge 4 collects house steward 15 with the cooling water passes through
Welding manner is fixedly connected.
The operation principle of reliable natural circulation cooling system of the present invention is：The cooling device of working medium in the drum 2
The cooling water down-comer 3 is flowed into by the bottom of the drum 2, the cooling device of working medium in the cooling water down-comer 3 after
Afterflow enters the cooling water distribution header 11, then separately flows into each cooling water distribution main pipe 12, and pass through each institute
State cooling water distribution main pipe 12 and flow into each heat convection standpipe 13；High-temperature flue gas flows into the reliable natural circulation cooling
Behind the distributed areas of heat convection standpipe 13 in convection recuperator 1, the fume afterheat mainly heat release in the form of heat convection, and
Absorbed by the cooling device of working medium in the heat convection standpipe 13, while flue-gas temperature reduces；In each heat convection standpipe 13
Cooling device of working medium heat absorption after form steam water interface, and collect inflow corresponding to the cooling water collect main pipe 14, continue simultaneously
Collect the inflow cooling water and collect house steward 15, then collecting house steward 15 by the cooling water flows into the cooling water tedge 4
In, the steam water interface working medium proportion in the cooling water tedge 4 and the cooling device of working medium ratio in the cooling water down-comer 3
Weight is different, and the steam water interface can be caused to be flowed into via the cooling water tedge 4 in the drum 2, and formation one is close
Closed loop cooling procedure.
The reliable natural circulation cooling system of the present invention, compared with prior art, it has advantages below：
1st, compared with current close arranging pipe convection recuperator, the reliable natural circulation cooling convection recuperator of the invention
The cooling water inflow distribution of every in 1 standpipe 13 that exchanged heat to the stream is equal, so that the every heat convection standpipe 13 is not
Overheat, natural circulation cooling hydrodynamic characterisitic is stable, improves the reliable natural circulation cooling system and afterheat boiler system
Safety and reliability.
2nd, compared with current close arranging pipe convection recuperator, because the cooling of the every heat convection standpipe 13 can be ensured
Water operation is equal, thus exhaust-heat boiler flue gas amount, flue-gas temperature by technique productions influenceed and during big ups and downs, it is described reliable natural
Circulating cooling convection recuperator and the reliable natural circulation cooling system do not have substantiality safety influence, because of exhaust gas volumn and flue gas
The fluctuation of temperature is directly proportional to the reliable natural circulation cooling system hydrodynamics circulating cooling flow, i.e. exhaust gas volumn or flue gas temperature
Degree rises, and the hydrodynamic head of reliable natural circulation cooling rises, cooling current in the pipe of the every heat convection standpipe 13
Speed and cooling water inflow synchronously increase, and burn out, ensure so as to ensure the every heat convection standpipe 13 to be unlikely to generation overheat
The reliable natural circulation cooling system and the safety and reliability of afterheat boiler system operation.
3rd, compared with current close arranging pipe convection recuperator, the reliable natural circulation cooling system realizes waste heat boiler
Simplify, the reliable natural circulation cooling convection recuperator in the reliable natural circulation cooling system can show according to technique
Field deployment scenarios, the reliable natural circulation cooling convection recuperator is arranged in the flue of technology arrangement, it is achieved thereby that
Waste heat boiler is minimized and simplified.
4th, compared with current close arranging pipe convection recuperator, because described reliable in the reliable natural circulation cooling system
Natural circulation cooling convection recuperator 1 is using heat convection riser forms, so that flue dust is not easy to be deposited on the convection current
Exchange heat on standpipe 13, and flue dust is hit by the heat convection standpipe 13 and stops rapid descent to the natural circulation cooling pair
Flow heat exchanger bottom and contain Transitional Space, the reliable natural circulation cooling convection recuperator of the invention and the reliable Natural Circulation
Cooling system, which has, hits inertial dust collection function, without setting special dust seperator, can ensure that the safe operation of waste heat boiler.
Embodiment three
The present invention also provides a kind of afterheat boiler system, and the afterheat boiler system includes reliable described in embodiment two
Natural circulation cooling system.The concrete structure of the reliable natural circulation cooling system refers to embodiment two, no longer tired herein
State.
In summary, the present invention provides a kind of reliable natural circulation cooling convection recuperator, cooling system and waste heat boiler
System, the reliable natural circulation cooling convection recuperator include：Cooling water distribution header, the cooling water distribution header are horizontal
Set, and one end is water inlet end；Multiple the first perforates being connected with inside it are provided with the inside of the cooling water distribution header；It is more
The cooling water distribution main pipe of root parallel interval arrangement, the cooling water distribution main pipe is horizontally disposed with, and one end is water inlet end；It is described
The water inlet end of cooling water distribution main pipe on the inside of the cooling water distribution header with being fixedly connected, and cooling water distribution main pipe
Inside is connected via first perforate with the inside of the cooling water distribution header；The upper table of the cooling water distribution main pipe
Face is provided with multiple the second perforates being connected with inside it；The heat convection standpipe of more parallel interval arrangements, the convection current are changed
Hot standpipe is vertically arranged；The bottom of the heat convection standpipe is fixedly connected with the upper surface of cooling water distribution main pipe, and
The inside that the inside of the heat convection standpipe distributes main pipe via second perforate with the cooling water is connected；More flat
The cooling water of between-line spacing arrangement collects main pipe, and the cooling water collects the top that main pipe is horizontally placed on the heat convection standpipe
Portion, and it is corresponding up and down one by one with cooling water distribution main pipe；One end that the cooling water collects main pipe is water side；It is described cold
But water collects the lower surface of main pipe and is provided with multiple the 3rd perforates being connected with inside it, and the cooling water collects the following table of main pipe
Face at the top of the heat convection standpipe with being fixedly connected, and the cooling water collects the inside of main pipe via the 3rd perforate
It is connected with the inside of the heat convection standpipe；Cooling water collects house steward, and the cooling water collects house steward and is horizontally disposed with, and one
Hold as water side；The cooling water collects is provided with multiple the 4th perforates being connected with inside it on the inside of house steward；The cooling water
The inner side for collecting house steward is collected the water side of main pipe with the cooling water and is fixedly connected, and the cooling water collects the inside of house steward
The inside for collecting main pipe with the cooling water via the 4th perforate is connected.The natural circulation cooling heat convection of the present invention
Heat convection standpipe in device is washed away by high-temperature dust-containing flue gas, because heat convection pipe is riser forms arrangement, is contained for this high temperature
During dirt sweep of gases heat convection standpipe, the flue dust being blocked is settled down to directed along heat convection standpipe longitudinal direction outer surface of tube wall
Appearance dirt space below new natural circulating cooling convection recuperator bottom, i.e. flue dust are not easy laying dust on heat convection standpipe,
So that the heat transfer efficiency of heat convection standpipe is stable, it is unlikely to burn out heat convection standpipe because of high temperature so that the nature
Circulating cooling convection recuperator has higher reliability；The reliable natural circulation cooling system of the present invention realizes Natural Circulation
Cooling, can ensure that the long-term cooling effect of heat convection pipe, realizes waste heat boiler device miniaturization, reliable natural circulation cooling
Reliable natural circulation cooling convection recuperator can be arranged at technology arrangement by convection recuperator according to technique site layout project situation
In exhaust gases passes, it is achieved thereby that the miniaturization and simplification of afterheat boiler system.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (11)
- A kind of 1. reliable natural circulation cooling convection recuperator, it is characterised in that the reliable natural circulation cooling heat convection Device includes：Cooling water distribution header, the cooling water distribution header are horizontally disposed with, and one end is water inlet end；The cooling water distribution is total Multiple the first perforates being connected with inside it are provided with the inside of pipe；The cooling water distribution main pipe of more parallel interval arrangements, the cooling water distribution main pipe is horizontally disposed with, and one end is water inlet End；The water inlet end of the cooling water distribution main pipe on the inside of the cooling water distribution header with being fixedly connected, and the cooling water It is connected inside distribution main pipe via first perforate with the inside of the cooling water distribution header；The cooling water distribution is female The upper surface of pipe is provided with multiple the second perforates being connected with inside it；The heat convection standpipe of more parallel interval arrangements, the heat convection standpipe are vertically arranged；The heat convection standpipe The upper surface of bottom and the cooling water distribution main pipe be fixedly connected, and the inside of the heat convection standpipe is via described the Two perforates are connected with the inside of cooling water distribution main pipe；The cooling water of more parallel interval arrangements collects main pipe, and the cooling water collects main pipe and is horizontally placed on the heat convection The top of standpipe, and it is corresponding up and down one by one with cooling water distribution main pipe；One end that the cooling water collects main pipe is water outlet End；The lower surface that the cooling water collects main pipe is provided with multiple the 3rd perforates being connected with inside it, and the cooling water collects The lower surface of main pipe at the top of the heat convection standpipe with being fixedly connected, and the cooling water collects the inside of main pipe via institute The inside that the 3rd perforate is stated with the heat convection standpipe is connected；Cooling water collects house steward, and the cooling water collects house steward and is horizontally disposed with, and one end is water side；The cooling water collects always Multiple the 4th perforates being connected with inside it are provided with the inside of pipe；The cooling water collects the inner side of house steward and the cooling water converges The water side of collection main pipe is fixedly connected, and the cooling water collects the inside of house steward via the 4th perforate and the cooling water The inside for collecting main pipe is connected.
- 2. reliable natural circulation cooling convection recuperator according to claim 1, it is characterised in that：The cooling water distribution House steward and the cooling water distribution same absolute altitude of main pipe；The cooling water collects main pipe and collects the same absolute altitude of house steward with the cooling water.
- 3. reliable natural circulation cooling convection recuperator according to claim 1, it is characterised in that：The cooling water distribution The other end of house steward is fixed connection end, the fixed connection end of the cooling water distribution header and the cooling closest with it Water inlet end of the moisture with main pipe is fixedly connected, and the interior of main pipe is distributed in the inside of the cooling water distribution header with the cooling water Portion is connected.
- 4. reliable natural circulation cooling convection recuperator according to claim 1, it is characterised in that：The cooling water distribution The other end of main pipe is fixed connection end, the fixed connection end of the cooling water distribution main pipe and the convection current closest with it The bottom of heat exchange standpipe is fixedly connected, and the inside of cooling water distribution main pipe is connected with the inside of the heat convection standpipe It is logical.
- 5. reliable natural circulation cooling convection recuperator according to claim 1, it is characterised in that：The cooling water collects The other end of main pipe is fixed connection end, and the cooling water collects the fixed connection end of main pipe and the convection current closest with it It is fixedly connected at the top of heat exchange standpipe, and the cooling water collects the inside of main pipe and is connected with the inside of the heat convection standpipe It is logical.
- 6. reliable natural circulation cooling convection recuperator according to claim 1, it is characterised in that：The cooling water collects The other end of house steward is fixed connection end, the fixed connection end of the cooling water convergence house steward and the cooling closest with it The water side that water collects main pipe is fixedly connected, and the interior of main pipe is converged in the inside of cooling water convergence house steward with the cooling water Portion is connected.
- 7. reliable natural circulation cooling convection recuperator according to claim 1, it is characterised in that：The cooling water distribution Length direction equidistantly distributed of the main pipe along the cooling water distribution header；The heat convection standpipe distributes along the cooling water The length direction equidistantly distributed of main pipe；The cooling water collects main pipe and collected along the cooling water between length direction of house steward etc. Away from distribution.
- 8. reliable natural circulation cooling convection recuperator according to claim 1, it is characterised in that：The cooling water distribution The water inlet end of main pipe is fixedly connected with the inner side of the cooling water distribution header by welding manner；The heat convection standpipe Bottom is fixedly connected with the upper surface of cooling water distribution main pipe by welding manner；The cooling water collects the following table of main pipe Face is fixedly connected with the top of the heat convection standpipe by welding manner；The cooling water collects house steward and the cooling water The water side for collecting main pipe is fixedly connected by welding manner.
- 9. a kind of reliable natural circulation cooling system, it is characterised in that the natural circulation cooling system includes：Reliable natural circulation cooling convection recuperator as any one of claim 1 to 8；The reliable Natural Circulation is cold But convection recuperator is located in exhaust gases passes, and the flow direction of the length direction of the heat convection standpipe and flue gas is mutually hung down Directly；Drum, positioned at the top of the reliable natural circulation cooling convection recuperator, the drum is built with cooling device of working medium；Cooling water down-comer, including water inlet end and water side；The water inlet end of the cooling water down-comer and the inside steam drum phase Connection, the water side of the cooling water down-comer is fixedly connected with the water inlet end of the cooling water distribution header, and the cooling The inside of water down-comer is connected with the inside of the cooling water distribution header；Cooling water tedge, including water inlet end and water side；The water inlet end of the cooling water tedge collects with the cooling water The water side of house steward is fixedly connected, and the inside of the cooling water tedge is collected the inside of house steward with the cooling water and is connected It is logical；The water side of the cooling water tedge is connected with the inside of the drum.
- 10. reliable natural circulation cooling system according to claim 9, it is characterised in that：The cooling water down-comer Water side is fixedly connected with the water inlet end of the cooling water distribution header by welding manner；The water inlet of the cooling water tedge The water side that house steward is collected at end with the cooling water is fixedly connected by welding manner.
- 11. a kind of afterheat boiler system, it is characterised in that the afterheat boiler system is included as described in claim 9 or 10 Natural circulation cooling system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610790579.5A CN107795971A (en) | 2016-08-31 | 2016-08-31 | Reliable natural circulation cooling convection recuperator, cooling system and afterheat boiler system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610790579.5A CN107795971A (en) | 2016-08-31 | 2016-08-31 | Reliable natural circulation cooling convection recuperator, cooling system and afterheat boiler system |
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| CN201610790579.5A Pending CN107795971A (en) | 2016-08-31 | 2016-08-31 | Reliable natural circulation cooling convection recuperator, cooling system and afterheat boiler system |
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| CN105605543A (en) * | 2016-02-03 | 2016-05-25 | 大连科林能源工程技术开发有限公司 | High-temperature high-dust content high-corrosion waste heat boiler of metallurgical industry |
| CN206176321U (en) * | 2016-08-31 | 2017-05-17 | 上海安可科技股份有限公司 | Reliable natural circulation cooling convection heat exchanger , cooling system and exhaust -heat boiler system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB601178A (en) * | 1945-09-13 | 1948-04-29 | Thompson John Water Tube Boilers Ltd | Improvements in or relating to natural circulation water-tube boilers |
| JP2012241976A (en) * | 2011-05-19 | 2012-12-10 | Fujikura Ltd | Loop heat pipe |
| CN103966418A (en) * | 2014-05-23 | 2014-08-06 | 上海宝钢节能环保技术有限公司 | Low steam drum evaporation cooling system for heating furnace |
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