CN109880952A - A kind of water pipe structure of the method that cooling water pipe is distributed rationally and uniform divided flows - Google Patents
A kind of water pipe structure of the method that cooling water pipe is distributed rationally and uniform divided flows Download PDFInfo
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Abstract
The invention belongs to blast furnace cooling system fields, and in particular to the water pipe structure of a kind of method that cooling water pipe is distributed rationally and uniform divided flows；The water pipe structure of the uniform divided flows includes that internal diameter the first big ring identical with total water inlet/total water outlet is connect with total water inlet/total water outlet；Lateral isocon；Vertical isocon；Connect the second largest ring of the vertical isocon and lateral isocon；Connect the third-largest ring of vertical isocon and cooling wall water pipe；The first big ring, lateral isocon, the second largest ring, vertical isocon and the third-largest ring sequential communication；The vertical isocon and the second largest ring be not in same level；The third-largest ring is connected to the cooling wall water pipe.The water pipe structure of the uniform divided flows can make the water operation of blast furnace cooling wall in circumferential direction more uniform, and reduce the breakage of cooling wall, improve the life of the blast furnace.
Description
Technical field
The invention belongs to blast furnace cooling system fields, and in particular to a kind of method that cooling water pipe is distributed rationally and uniformly point
The water pipe structure of stream.
Background technique
Prolonging campaign has become the important symbol and component part of contemporary Bf Burden And Progress of Ironmaking Technology.Heat is negative especially in blast furnace
Lotus is high, and hot-fluid impact is big, strong to the cooling damage of facilities of furnace body, therefore raising furnace body cooling equipment life is to ensure that prolonging campaign
One of key factor；And the service life of cooling equipment is improved in addition to optimization operating duty, enhancing brick fuel corrosion resistance, enhancing are cold
But the methods of device heat-transfer capability is outer, and the uniformity for improving way of supplying water is also a kind of important method, by improving way of supplying water
Uniformity the breakage of blast furnace cooler can be effectively reduced, extend blast furnace service life.The water supply pattern of blast furnace cooling system
Multifarious, iron and steel enterprise, according further to knowhow, lacks scientific basis and theory support to the control of blast furnace cooling system,
A large amount of wastes of water resource are caused, cooling effect is also bad, way of supplying water used by domestic blast furnace cooling system present at present
It is not high with the uniformity on vertical direction in circumferential direction, therefore need to change the way of supplying water of blast furnace cooling system
Into.And seldom to the research of blast furnace water system uniformity both at home and abroad at present, research is also concentrated mainly on tuyere small sleeve, height
Furnace water station monitors and for water stability etc., and the research to blast furnace cooling wall water system water supply uniformity is almost
Blank.
There are many different water supply patterns to be mainly classified as by Comprehensive Comparison for blast furnace cooling system now
Several classes:
The direct way of supplying water of the mono- import of I, (as shown in Figure 1)
The way of supplying water is oldest way of supplying water, far from water inlet position local water velocity very little, and into
Mouth of a river position water velocity is very big, i.e. the water operation of the way of supplying water is extremely non-uniform.Substantially seldom using this
Way of supplying water.
II, double feed inlet or the direct way of supplying water of more imports (as shown in Figure 2 A and 2 B)
In order to further increase the uniformity of a direct way of supplying water of water inlet pipe, often through in blast furnace circumferential direction
Increase the method for water inlet number uniformly to improve the uniformity of water operation, forms double feed inlet or more imports are directly supplied water
Mode, which gets well than the first way of supplying water, but there is also many shortcomings, only in more water inlet
Under conditions of number, the uniformity of water operation could be effectively improved, effect can just become apparent from；And this method is in Specific construction
When, due to layout of beam line complexity, increase the difficulty of construction of pipeline.
The way of supplying water (as shown in Figure 3) of lateral isocon structure is enclosed in the mono- import one of III,
In order to overcome deficiency existing for double feed inlet or the direct way of supplying water of more imports, increases by a circle on this basis and laterally divide
Water pipe, that is, the water entered from the inlet do not flow directly into blast furnace cooling stave, but pass sequentially through external big endless tube and transverse direction
Distributive pipe is uniformly supplied water to intermediate cooling wall, forms the way of supplying water that lateral isocon structure is enclosed in single import one.It should
Way of supplying water can greatly improve the water operation uniformity of cooling system, but the water operation uniformity of cooling during rolling wall
It is largely influenced by the water operation uniformity of external big endless tube, since the water operation of external big endless tube is uneven
, so the water operation of internal cooling wall still has less uniform phenomenon.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the water point of the way of supplying water of a circle transverse direction isocon is further increased
With uniformity, the present invention provides a kind of water pipe structure of uniform divided flows and blast furnace cooling systems.The water pipe of the uniform divided flows
Structure can make the water operation of blast furnace cooling wall in circumferential direction more uniform, and reduce the breakage of cooling wall, mention
The high life of the blast furnace.
The present invention is achieved by the following technical solutions:
A kind of water pipe structure of uniform divided flows, the water pipe structure of the uniform divided flows include:
First big ring, the first big ring and total water inlet/total water outlet connect and the first big ring internal diameter and always into
The mouth of a river/total water outlet internal diameter is identical；
Lateral isocon；
Vertical isocon；
The second largest ring, the second largest ring are connect with the vertical isocon and lateral isocon；
The third-largest ring, the third-largest ring are connect with the vertical isocon and cooling wall water pipe；
The first big ring, lateral isocon, the second largest ring, vertical isocon and the third-largest ring sequential communication；
The vertical isocon and the second largest ring be not in same level；
The third-largest ring is connected to the cooling wall water pipe.
Further, the vertical isocon is perpendicular to the second largest ring；
The second largest ring has same central axis with the third-largest ring and diameter is identical.
Further, the internal diameter relationship of the third-largest ring, the second largest ring and vertical isocon is as follows:When meeting the relationship can guarantee that water flow flows in all types of water pipes, water speed is not mutated；
Wherein, D1 is the internal diameter of the third-largest ring, and D2 is the internal diameter of the second largest ring, and d is the vertical isocon
Internal diameter, N be around blast furnace one enclose when blast furnace cooling stave number.
Further, the vertical isocon is identical as the number of cooling wall water pipe and is equidistantly interspersed；
The vertical isocon is identical with the number of the lateral isocon and is equidistantly interspersed.
Further, the number of the vertical isocon be M*N (1≤M≤6, preferably M=4) simultaneously,
The number of the transverse direction isocon is M*N root；
M is the number of cooling wall water pipe on every piece of blast furnace cooling stave, and N is of blast furnace cooling stave when enclosing around blast furnace one
Number.
Further, the value of the N will according to blast furnace actual size and the actual size of cooling wall as reference, generally with
Subject to the practical cooling wall number that blast furnace bottom one is enclosed.
Further, the vertical shunting bore, the internal diameter of lateral isocon are identical with the internal diameter of cooling wall water pipe.
Further, the cooling wall water inlet pipe and the vertical isocon are flat with blast furnace all perpendicular to horizontal plane
Row is only dislocation and equidistant circumferential arrangement between each other, in same peripheral curved；Although the shape and position of the two
It is close, but function is different, the cooling wall water inlet pipe is the water pipe in cooling wall, plays the work of cooling blast furnace
With；The vertical isocon is to play uniform divided flows, its presence makes the water in cooling wall water pipe more uniform.
Further, the internal diameter of the described first big ring is identical as the internal diameter of the total water inlet, and the total water inlet
Internal diameter is greater than the internal diameter of the vertical isocon, lateral isocon, to reduce total water intake velocity.
Further, the valve (main pressure drag) of each layer of blast furnace cooling stave must be in same elevation location；Also, each
The joining place (mutually passing through position) of a cooling wall pipeline must round and smooth connection (having reasonable chamfering).
It is a further object of the present invention to provide a kind of water pipe structures using above-mentioned uniform divided flows to cool down to blast furnace
Blast furnace cooling system, the system include two uniform divided flows water pipe structure, the water pipe of two uniform divided flows
Structure is separately positioned on total water inlet and total water outlet, symmetrical in mirror surface.
Further, the water pipe structure for the uniform divided flows that the blast furnace cooling system uses cools down blast furnace,
Improve the service life of blast furnace.
Further object of the present invention is to provide a kind of method that cooling water pipe is distributed rationally in blast furnace cooling system, the side
Method initially sets up the threedimensional model of blast furnace cooling system, then carries out numerical simulation to it by existing ANSYS software；Pass through inspection
The speed for surveying several speed measuring points of water flow field of simulation calculates separately under different water inlet said conditions and under the conditions of different entrance angles
The unevenness of water flow；According to the uniformity of the value quantitative comparison difference way of supplying water of unevenness, thus the confession optimized
Water mode, realizes the improvement of blast furnace cooling system way of supplying water, and finally obtained way of supplying water is uniform divided flows described above
Water pipe structure.
Further, the speed of several speed measuring points of water flow field by detection simulation, calculates separately different water inlets
Under said conditions and different entrance angles under the conditions of water flow unevenness, comprising:
Determine several speed measuring points of water flow field of simulation: in S area of blast furnace circumferential direction (each area includes several pieces of cold-zone walls) setting S
A speed measuring point (can certainly each cooling water pipe set a speed measuring point), measuring flowing water speed is vi, wherein i=1,2,
3,……,S；
Calculate the speed average and variance in S area:
Speed average indicates with μ, then:
The velocity variance in S area indicates with D, then:
It calculates unevenness: calculating the unevenness of water flow field using following equation:
Wherein, K is unevenness, and D is the variance yields of S speed data, and μ represents the average speed of S fast point data.
Further, the water flow field refers to that flowing water enters from the total water inlet and flows out up to from the cooling water outlet of blast furnace
This section of water flow field.
Further, the unevenness for calculating water flow under different water inlet said conditions is using the ANSYS software to not
The way of supplying water for enclosing lateral isocon structure with one under the conditions of umber of feed inlet carries out sunykatuib analysis, each survey in circle circumferential direction
The speed data that speed point extracts, and the unevenness under the conditions of different umber of feed inlets is calculated, carry out water flow field analysis of Uniformity.
Further, the unevenness for calculating water flow under the conditions of different entrance angles is using the ANSYS software one
It encloses on the basis of the way of supplying water of lateral isocon structure, by changing the water inlet angle of total water inlet, carrys out comparative analysis difference
Unevenness under condition for import, to obtain optimal water supply angle.
Fig. 6 is the way of supplying water comparison diagram of the lateral isocon structure of a circle under the conditions of different entrance angles.Pass through simulation
Analysis, along the circumferential direction, each speed measuring point extraction rate value in water flow field, and each model is calculated in different entrance angles
Under the conditions of unevenness, carry out water flow field analysis of Uniformity.
The present invention has following advantageous effects:
(1) method that cooling water pipe is distributed rationally in a kind of blast furnace cooling system of the invention compensates for blast furnace cooling system
Research blank in terms of furnace body water operation uniformity.
(2) a kind of way of supplying water of the water pipe structure of uniform divided flows of the invention greatly improves blast furnace cooling system and exists
Water operation uniformity in blast furnace circumferential direction improves the service life of blast furnace so as to reduce blast furnace breakage rate.
(3) only one total inlet and outlet pipe lines (total water inlet of the water pipe structure of a kind of uniform divided flows of the invention
With a total water outlet), therefore the layout of pipeline is very simple, difficulty of construction is small.
Detailed description of the invention
Fig. 1 is the water pipe structure schematic diagram of the direct way of supplying water of single import in background of invention.
Fig. 2A is the water pipe structure schematic diagram of the direct way of supplying water of double feed inlet in background of invention.
Fig. 2 B is the water pipe structure schematic diagram of more direct way of supplying water of import in background of invention.
Fig. 3 is the water pipe structure signal for the way of supplying water that lateral isocon structure is enclosed in single import one in background of invention
Figure.
A kind of method that cooling water pipe is distributed rationally in blast furnace cooling system in Fig. 4 embodiment of the present invention is in different umber of feed inlets
Under the conditions of a way of supplying water contrast schematic diagram for enclosing lateral isocon structure.
Fig. 5 is a kind of schematic diagram of the water pipe structure of uniform divided flows in the embodiment of the present invention.
Fig. 6 be a kind of cooling water pipe is distributed rationally in blast furnace cooling system in the embodiment of the present invention method to difference into
The analysis contrast schematic diagram of unevenness under the conditions of bicker degree.
Fig. 7 is a kind of schematic diagram of the water pipe structure of uniform divided flows of the embodiment of the present invention.
Description of symbols: 1 is the first big ring；2 be lateral isocon；3 be vertical isocon；4 be the second largest ring；5 are
The third-largest ring；6 be cooling wall water pipe.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments and specification
The present invention is explained in further detail in attached drawing.It should be appreciated that specific embodiment described herein is used only for explaining this
Invention, is not intended to limit the present invention.
On the contrary, the present invention covers any substitution done on the essence and scope of the present invention being defined by the claims, repairs
Change, equivalent method and scheme.Further, in order to make the public have a better understanding the present invention, below to of the invention thin
It is detailed to describe some specific detail sections in section description.Part without these details for a person skilled in the art
The present invention can also be understood completely in description.
Embodiment 1
At present now way of supplying water used by domestic blast furnace cooling system in circumferential direction with it is equal on vertical direction
Evenness is not high, therefore needs to improve the way of supplying water of blast furnace cooling system.And it supplies water both at home and abroad to blast furnace at present
The research of system homogeneity is seldom, and research is also concentrated mainly on tuyere small sleeve, the monitoring of blast furnace water station and for water stability etc.
Aspect, the research to blast furnace cooling wall water system water supply uniformity is almost blank.
For this purpose, the method is first the present embodiment provides the method that cooling water pipe in a kind of blast furnace cooling system is distributed rationally
The threedimensional model of blast furnace cooling system is first established, then numerical simulation is carried out to it by existing ANSYS software；By detecting mould
The speed of several speed measuring points of quasi- water flow field, calculate separately under different water inlet said conditions and different entrance angles under the conditions of water flow
Unevenness；According to the uniformity of the value quantitative comparison difference way of supplying water of unevenness, thus the water supply side optimized
Formula realizes the improvement of blast furnace cooling system way of supplying water, finally obtains optimal way of supplying water and corresponding uniform divided flows
Water pipe structure.
In the present embodiment, the speed of several speed measuring points of water flow field by detection simulation, calculate separately it is different into
Under the said conditions of the mouth of a river and different entrance angles under the conditions of water flow unevenness, comprising:
Determine several speed measuring points of water flow field of simulation: in S area of blast furnace circumferential direction (each area includes several pieces of cold-zone walls) setting S
A speed measuring point (can certainly each cooling water pipe set a speed measuring point), measuring flowing water speed is vi, wherein i=1,2,
3,……,S；
Calculate the speed average and variance in S area:
Speed average indicates with μ, then:
The velocity variance in S area indicates with D, then:
It calculates unevenness: calculating the unevenness of water flow field using following equation:
Wherein, K is unevenness, and D is the variance yields of S speed data, and μ represents S speed
The average speed of point data.
In the present embodiment, the water flow field refers to that flowing water enters from the total water inlet up to cooling down water outlet from blast furnace
This section of water flow field of outflow.
(1) unevenness for calculating water flow under different water inlet said conditions is using the ANSYS software to different imports
One under the said conditions way of supplying water for enclosing lateral isocon structure carries out sunykatuib analysis, and each speed measuring point mentions in circle circumferential direction
The speed data taken, and the unevenness under the conditions of different umber of feed inlets is calculated, carry out water flow field analysis of Uniformity.
The unevenness of water flow under different water inlet said conditions is calculated, particular content is as follows:
The way of supplying water for enclosing lateral isocon structure to one under the conditions of different umber of feed inlets carries out sunykatuib analysis, such as Fig. 4 institute
Show, the speed data that each speed measuring point extracts in circle circumferential direction, and calculates the unevenness under the conditions of different umber of feed inlets, into
Row water flow field analysis of Uniformity, as shown in table 1 below.
Unevenness contrast table under the conditions of the different umber of feed inlets of table 1
By the comparative analysis to the unevenness under the conditions of different umber of feed inlets, following important conclusion is obtained:
1) variation tendency of the water flow of the variation tendency and outer ring of the water flow of inner ring is identical.But inner ring flow uniformity ratio
Outer ring flow uniformity is high, this is because what the flow uniformity of inner ring was acted on by the uniform divided flows of the distributive pipe of intermediate lateral
It influences, so that the uniformity of inner ring is improved.
2) uniformity of inner ring is mainly influenced by the uniformity of outer ring, secondly will also be by intermediate distributive pipe uniform divided flows
Influence, the uniformity of external big ring can be increased by increasing water inlet number, to improve the uniformity of inner ring.That is increase
It is the same for adding the effect that mouth of a river number generates the effect that outer tube generates with lateral distributive pipe to inner ring.
In summary: the effect for uniformly increasing several water inlets and the distributive pipe for covering one layer of transverse direction is consistent.Therefore,
It will increase the complexity of layout of beam line in order to avoid increasing multiple water inlet mouths, in the confession that original one encloses lateral distributive pipe structure
A circle transverse direction distributive pipe is covered in water mode again, for reducing the unevenness of outer endless tube, and then improves the uniformity of inner ring.To
Show that the way of supplying water of two layers of single import lateral distributive pipe structure shown in fig. 5, the way of supplying water pass through lateral isocon
Uniform divided flows twice effect, substantially increase the water operation uniformity of innermost ring, the water pipe structure designed such as Fig. 5 institute
Show.
(2) unevenness of water flow is lateral in a circle using the ANSYS software under the conditions of the different entrance angles of calculating
On the basis of the way of supplying water of isocon structure, by changing the water inlet angle of total water inlet, carry out comparative analysis difference import item
Unevenness under part, to obtain optimal water supply angle.
The unevenness of water flow under the conditions of different entrance angles is calculated, concrete analysis content is as follows:
On the basis of the way of supplying water that one encloses lateral isocon structure, by the water inlet angle of change water inlet, next pair
Than analyzing the unevenness under different condition for import, to obtain optimal water supply angle.As shown in fig. 6, Fig. 6 be 0 °/30 °/
One under the conditions of 60 °/90 ° different entrance angles encloses the way of supplying water comparison diagram of lateral isocon structure.Pass through sunykatuib analysis, edge
Circumferential direction, each speed measuring point extraction rate value in water flow field, and calculate each model under the conditions of different entrance angles
Unevenness, carry out water flow field analysis of Uniformity, as a result as shown in table 2 below.
Unevenness contrast table under the conditions of the different entrance angles of table 2
By the analysis to the unevenness of water flow under the conditions of different entrance angles, following important conclusion is obtained:
1) increasing water inlet angle can be improved its average speed, relative fluctuation rate be reduced, to reduce unevenness.
2) by the analysis of the water inlet angle to 0 °/30 °/60 °/90 ° cooling wall water pipe directions, not with water inlet angle
Disconnected to increase, unevenness is gradually reduced, and water operation is more uniform, therefore is intake using 90 ° of flooding angle.
To sum up, on the basis of two obtained enclose the way of supplying water of lateral distributive pipe structure, the lateral distributive pipe of the inside
It is changed to vertical distributive pipe, lateral distributive pipe and one is enclosed so as to form one and encloses the way of supplying water of longitudinal distributive pipe structure (such as Fig. 7 institute
Show), this way of supplying water, which not only meets, has the uniform of two circle distributive pipes that water is divided to act on, while also meeting 90 ° of inner ring (vertical)
Flooding angle, to greatly increase the uniformity of water operation.
The number that water inlet can certainly be further increased is turned into more imports one and encloses lateral distributive pipe and a circle vertically
Distributive pipe structure way of supplying water, on the one hand does so the complexity that will increase layout of beam line, difficulty of construction is big；On the other hand it is single into
Mouth one encloses lateral distributive pipe and a vertical distributive pipe structure way of supplying water of circle, and the internal uniformity is very high, and it is equal to reach water
The requirement of even distribution, it is not recommended that be further added by water inlet number.
Embodiment 2
As shown in fig. 7, being obtained using the method that cooling water pipe in blast furnace cooling system described in embodiment 1 is distributed rationally
The water pipe structure of the water pipe structure of even shunting, the uniform divided flows includes:
First big ring, the first big ring and total water inlet/total water outlet connect and the first big ring internal diameter and always into
The mouth of a river/total water outlet internal diameter is identical；
Lateral isocon；
Vertical isocon；
The second largest ring, the second largest ring are connect with the vertical isocon and lateral isocon；
The third-largest ring, the third-largest ring are connect with the vertical isocon and cooling wall water pipe；
The first big ring, lateral isocon, the second largest ring, vertical isocon and the third-largest ring sequential communication；
The vertical isocon and the second largest ring be not in same level；
The third-largest ring is connected to the cooling wall water pipe.
In the present embodiment, the vertical isocon is perpendicular to the second largest ring；
The second largest ring has same central axis with the third-largest ring and diameter is identical.
In the present embodiment, the internal diameter relationship of the third-largest ring, the second largest ring and vertical isocon is as follows:When meeting the relationship can guarantee that water flow flows in all types of water pipes, water speed is not mutated；
Wherein, D1 is the internal diameter of the third-largest ring, and D2 is the internal diameter of the second largest ring, and d is the vertical isocon
Internal diameter, N be around blast furnace one enclose when blast furnace cooling stave number.
In the present embodiment, the vertical isocon is identical as the number of cooling wall water pipe and is equidistantly interspersed；
The vertical isocon is identical with the number of the lateral isocon and is equidistantly interspersed.
In the present embodiment, the number of the vertical isocon be M*N (1≤M≤6, preferably M=4) simultaneously,
The number of the transverse direction isocon is M*N root；
M is the number of cooling wall water pipe on every piece of blast furnace cooling stave, and N is of blast furnace cooling stave when enclosing around blast furnace one
Number.
The value of the N will be according to blast furnace actual size and the actual size of cooling wall as reference, generally with blast furnace bottom
Subject to the practical cooling wall number of one circle.
In the present embodiment, the vertical shunting bore, the lateral internal diameter of isocon and the internal diameter phase of cooling wall water pipe
Together.
In the present embodiment, the cooling wall water inlet pipe and the vertical isocon are all perpendicular to horizontal plane, with State of Blast Furnace
Body is parallel, is only dislocation and equidistant circumferential arrangement between each other, in same peripheral curved；Although the shape of the two and
Position is close, but function is different, and the cooling wall water inlet pipe is the water pipe in cooling wall, plays cooling blast furnace
Effect；The vertical isocon is to play uniform divided flows, its presence makes the water in cooling wall water pipe more uniform.
In the present embodiment, the internal diameter of the described first big ring is identical as the internal diameter of the total water inlet, and total water inlet
The internal diameter of mouth is greater than the internal diameter of the vertical isocon, lateral isocon, to reduce total water intake velocity.
In the present embodiment, the valve (main pressure drag) of each layer of blast furnace cooling stave must be in same elevation location；Also,
The joining place (mutually passing through position) of each cooling wall pipeline must round and smooth connection (having reasonable chamfering).
The method that cooling water pipe is distributed rationally in a kind of blast furnace cooling system of the present embodiment compensates for blast furnace cooling system
Research blank in terms of furnace body water operation uniformity；The water supply of the water pipe structure for the uniform divided flows analyzed by this method
Mode greatly improves water operation uniformity of the blast furnace cooling system in blast furnace circumferential direction, so as to reduce
Blast furnace breakage rate improves the service life of blast furnace.
In addition, a kind of only one total inlet and outlet pipe lines of the water pipe structure of uniform divided flows of the present embodiment, therefore pipeline
Layout it is very simple, difficulty of construction is small.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of water pipe structure of uniform divided flows, which is characterized in that the water pipe structure of the uniform divided flows includes:
First big ring, the first big ring and total water inlet/total water outlet connects and the first big ring internal diameter and total water inlet/
Total water outlet internal diameter is identical；
Lateral isocon；
Vertical isocon；
The second largest ring, the second largest ring are connect with the vertical isocon and lateral isocon；
The third-largest ring, the third-largest ring are connect with the vertical isocon and cooling wall water pipe；
The first big ring, lateral isocon, the second largest ring, vertical isocon and the third-largest ring sequential communication；
The third-largest ring is connected to the cooling wall water pipe.
2. a kind of water pipe structure of uniform divided flows according to claim 1, which is characterized in that the vertical isocon is vertical
In the second largest ring；
The second largest ring has same central axis with the third-largest ring and diameter is identical.
3. a kind of water pipe structure of uniform divided flows according to claim 1, which is characterized in that the third-largest ring, second
The internal diameter relationship of big ring and vertical isocon is as follows:
Wherein, D1 is the internal diameter of the third-largest ring, and D2 is the internal diameter of the second largest ring, and d is the interior of the vertical isocon
Diameter, N are the number of blast furnace cooling stave when enclosing around blast furnace one.
4. a kind of water pipe structure of uniform divided flows according to claim 1, which is characterized in that the vertical isocon with it is cold
But the number of wall water pipe is identical and is equidistantly interspersed；
The vertical isocon is identical with the number of the lateral isocon and is equidistantly interspersed.
5. a kind of water pipe structure of uniform divided flows according to claim 1, which is characterized in that in the vertical isocon
Diameter, the internal diameter of lateral isocon are identical with the internal diameter of cooling wall water pipe.
6. a kind of water pipe structure using uniform divided flows as claimed in any one of claims 1 to 5 carries out cooling height to blast furnace
Furnace cooling system, which is characterized in that the system includes the water pipe structure of two uniform divided flows, two uniform divided flows
Water pipe structure be separately positioned on total water inlet and total water outlet, in mirror surface it is symmetrical.
7. a kind of method that cooling water pipe is distributed rationally in blast furnace cooling system, which is characterized in that the method initially sets up packet
The threedimensional model of blast furnace cooling system containing cooling water pipe structure, then numerical simulation is carried out to it by software；By detecting mould
The speed of quasi- several speed measuring points of blast furnace cooling system water flow field, calculates separately under different water inlet said conditions and different inlet angles
The unevenness of water flow under the conditions of degree；According to the uniformity of the value quantitative comparison difference way of supplying water of unevenness, finally obtain
The cooling water pipe structure of optimization as claimed in any one of claims 1 to 5.
8. the method that cooling water pipe is distributed rationally in a kind of blast furnace cooling system according to claim 7, which is characterized in that
The speed of several speed measuring points of blast furnace cooling system water flow field by detection simulation, calculates separately different water inlet said conditions
Unevenness under the conditions of lower and different entrance angles, comprising:
It determines several speed measuring points of water flow field of simulation: setting S speed measuring point in S area of blast furnace circumferential direction, measuring flowing water speed is vi,
Wherein i=1,2,3 ..., S；
Calculate the speed average and variance in S area:
Speed average indicates with μ, then:
The velocity variance in S area indicates with D, then:
It calculates unevenness: calculating the unevenness of water flow field using following equation:
Wherein, K is unevenness.
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