CN108168319B - Hydrologic cycle cooling system and its application method on steel rolling production-line - Google Patents
Hydrologic cycle cooling system and its application method on steel rolling production-line Download PDFInfo
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- CN108168319B CN108168319B CN201711184166.3A CN201711184166A CN108168319B CN 108168319 B CN108168319 B CN 108168319B CN 201711184166 A CN201711184166 A CN 201711184166A CN 108168319 B CN108168319 B CN 108168319B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
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- General Engineering & Computer Science (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The present invention provides hydrologic cycle cooling system and its application method on a kind of steel rolling production-line.Hydrologic cycle cooling system of the invention can be realized the independent water circulating cooling of furnace area ancillary equipment, and under improper production status, furnace area ancillary equipment can not depend on the entire production line clean circulating water circulatory system and be cooled down.Using technical solution provided by the invention, when steel rolling production-line stops production, can be out of service by clean circulating water water circulating pump station immediately, it can bear not needing the cooling temperature range of water without waiting heating furnace to cool to ancillary equipment in its region, so as to energy saving.Using technical solution of the present invention, in entire clean circulating water cooling system, other any device fails in addition to the equipment of furnace area need to stop in the case that clean circulating water pumping station operation handled, need not equally heating furnace be waited to cool down, circulation, the investment upkeep operation that can stop clean circulating water for thirty years of age, to improve the operating rate of production line.
Description
Technical field
The invention belongs to the cooling technology fields of steel rolling production-line, and in particular to be able to achieve heating in a kind of steel rolling production-line
The hydronic circulating cooling system of the independent water of furnace region aids equipment and its application method.
Background technique
Currently, the circulating cooling system of steel rolling production-line in the prior art is generally by two large divisions (as shown in Figure 1) structure
At: a part is using the water Liang Lizhu of the furnace area of Vaporization Cooling, this part has individual heating furnace to soften
Water-circulating pump station drives, and cooling water forms circulating cooling, mistake between softened water water circulating pump station and heating furnace water beam column
The steam generated in journey is subsequent to have special collection to recycle, the water of loss, by the industrial fresh water in the new supply mains road of plant area Lai
It is supplemented.Another part includes the equipment of other needs coolings of the ancillary equipment and production line of furnace area, Reheating Furnace Zone
The ancillary equipment in domain such as enters furnace and furnace rolls road, the steel billet come out of the stove enter the positioning baffle of furnace, video camera equipment in furnace；Production line
Other need cooling equipment include steel rolling region motor water cooling but with the motor water cooling in collecting packing region but, central air-conditioning
Equipment etc. recirculated water cooling is used on other all production lines；The recirculated water cooling of the equipment component, by the net ring of line configuration
Water-circulating pump station is driven, and cooling water is needing to form circulation between cooling equipment and clean circulating water water circulating pump station, net
Cooling tower in ring water-circulating pump station is evaporated cooling, the water of loss, equally by the industrial fresh water in the new supply mains road of plant area
To be supplemented.
Because of the operational characteristic of heating furnace, according to conventional knowhow, during heating furnace normal heating, heating furnace blowing out
Afterwards, in burner hearth the reduction of temperature be slowly, such as 1200 DEG C of temperature in burner hearth of relatively large heating furnace, natural cooling after blowing out
In the case where, the temperature range that ancillary equipment does not need recirculated water cooling can be just reduced to after needing at least 24 hours.
Since furnace temp reduces slow feature, determine that heating furnace after blowing out, cannot stop its region immediately
The recirculated water cooling of interior ancillary equipment also cannot be immediately referring to the common design of the above-mentioned steel rolling production-line clean circulating water circulatory system
Stop the operation of clean circulating water water circulating pump station, such situation there are apparent two drawbacks:
1) during heating furnace blowing out, production line is the state to stop production certainly, in this case, removes furnace area and needs
(the Vaporizing cooling of water beam column in furnace other than the Vaporizing cooling circulation of water beam column in the ancillary equipment and heating furnace of recirculated water cooling
There is individual demineralized water circulation pump station to complete), the equipment in other regions does not need recirculated water cooling on production line；But at this moment, due to
Temperature reduces slowly in heating furnace burner hearth, and the ancillary equipment of recirculated water cooling is needed also to need clean circulating water circulating pump in furnace area
Station works on for a long time, such case, causes the waste of energy consumption, mainly drives the power consumption of pumping plant.
2) when production line is faulty, other area equipments mainly in addition to furnace area break down
(including clean circulating water water circulating pump station itself), the operation for needing to stop clean circulating water water circulating pump station carrys out repair apparatus, during this, equally by
In heating furnace cooling, slow, ancillary equipment also needs the objective circumstances of recirculated water cooling, and can not stop clean circulating water circulating pump immediately
The operation stood increases the maintenance waiting time, and the flexibility of maintenance reduces, or even sometimes, it is auxiliary can only to sacrifice furnace area
It helps equipment to come the service life, stops the operation of clean circulating water water circulating pump station by force to repair failure, and cause greater loss.
Accordingly, it is desirable to provide a kind of be directed to the insufficient improved technology scheme of the above-mentioned prior art.
Summary of the invention
It is above-mentioned insufficient in the prior art the purpose of the present invention is overcoming, it provides in a kind of steel rolling production-line and is able to achieve heating furnace
The hydronic circulating cooling system of the independent water of region aids equipment and its application method.
To achieve the goals above, the invention provides the following technical scheme:
A kind of circulating cooling system on steel rolling production-line, it includes heating furnace that cooling equipment is needed on steel rolling production-line
The equipment in region and other need the equipment of water cooling, the equipment of the furnace area includes water beam column and ancillary equipment,
In, the water beam column uses Vaporizing cooling, and it is cold that the ancillary equipment and described other need the equipment of water cooling to recycle using water
But；Circulating cooling system on the steel rolling production-line includes: first circulation pipeline, the ancillary equipment of the furnace area and
Described other need the equipment of water cooling to be located on the first circulation pipeline；The first circulation pipeline for convey cooling water into
And the ancillary equipment of the cooling furnace area and described other need the equipment of water cooling；Second circulation pipeline, the heating
The water beam column in furnace region is located on the second circulation pipeline；The second circulation pipeline is for conveying cooling water and then cooling
The water Liang Lizhu of the furnace area；Plant area's industrial fresh water main pipe rail, it is required cold in circulating cooling system for providing
But water is used；The first flow divider is equipped on plant area's industrial fresh water main pipe rail, the first interface of first flow divider connects
On plant area's industrial fresh water main pipe rail, the second interface of first flow divider and the first circulation piping connection, institute
State the first flow divider third interface and the second circulation piping connection；Ancillary equipment alone cycle pipeline, it is cold for conveying
But the ancillary equipment of water and then the cooling furnace area；The second flow divider is equipped on the second circulation pipeline, it is described
The first interface and second interface of second flow divider are both connected on the second circulation pipeline, the third of second flow divider
Interface and the ancillary equipment alone cycle piping connection, the ancillary equipment alone cycle pipeline and the furnace area
Ancillary equipment connection；Third control valve and the 4th control valve, the third control valve are provided on the first circulation pipeline
The front-end and back-end of the ancillary equipment, the third control valve and the 4th control are located at the 4th control valve
Valve can control the connection and disconnection of the ancillary equipment Yu the first circulation pipeline.
Circulating cooling system as described above, it is preferable that the ancillary equipment alone cycle pipeline includes the first branch, second
Branch and third branch；One end of the first branch is connect with the third connector of second flow divider；Described first
The other end on road is provided with third flow divider, and the first interface of the third flow divider is connect with the first branch, and described
The second interface and third interface of three flow dividers are separately connected one end of the second branch and one end of the third branch；?
The first control valve is provided in the first branch.
Circulating cooling system as described above, it is preferable that the rear end of the other end of the second branch and the ancillary equipment
Connection, and junction is between the ancillary equipment and the 4th control valve；The other end of the third branch with it is described
The front end of ancillary equipment connects, and junction is between the ancillary equipment and the third control valve.
Circulating cooling system as described above, it is preferable that the third branch road is provided with the second control valve and pipe pressurizing
Pump group, and the pipe pressurizing pump group is connect with the third interface of the third flow divider.
Circulating cooling system as described above, it is preferable that the 5th control valve is provided in the second branch.
Circulating cooling system as described above, it is preferable that further include: recovery pipe, for recycling cooling water；
The 4th flow divider, and the second of the 5th control valve and the third flow divider are equipped in the second branch
Interface connection；The first interface and second interface of 4th flow divider are connect with the second branch, and the described 4th shunts
The third interface of valve is connect with the recovery pipe.
Circulating cooling system as described above, it is preferable that be provided with the 6th control valve in the recovery pipe and recycling is collected
Device, and the 6th control valve is connect with the third interface of the 4th flow divider.
Circulating cooling system as described above, it is preferable that the cooling water conveyed in the second circulation pipeline is softened water；It is excellent
Selection of land is provided with heating furnace softening water-circulating pump on the second circulation pipeline, and the heating furnace softening water-circulating pump is for driving
Water Liang Lizhu described in steam water interface and then Vaporizing cooling in dynamic evaporative cooling natural circulating system.
Circulating cooling system as described above, it is preferable that the cooling water conveyed in the first circulation pipeline is clean circulating water；It is excellent
Selection of land, purification water-circulating pump is provided on the first circulation pipeline, and the purification water-circulating pump is cold in pipeline for driving
But water and then the ancillary equipment of the cooling furnace area and it is described other need water cooling equipment other need setting for water cooling
It is standby.
A kind of application method of the circulating cooling system, the application method include the following steps:
1) under normal production scenarios, first circulation pipeline and second circulation pipeline are operated normally；
2) when other need the equipment of water cooling to need to overhaul or stop production when production line, the fortune of first circulation pipeline will be stopped
Row；
3) third control valve and the 4th control valve are closed, make the cooling line of the ancillary equipment of furnace area water inlet and
Water return pipeline is disconnected with first circulation pipe-line system；
4) the second control valve and the 5th control valve are then opened, the ancillary equipment and pipe pressurizing pump group of furnace area are made
Between formed ancillary equipment alone cycle pipeline；
5) the first control valve is opened again, and the industrial fresh water in plant area's industrial fresh water main pipe rail is introduced into ancillary equipment and is individually followed
In endless tube road；
6) blower pump for pipeline group is opened, so that ancillary equipment alone cycle pipeline is brought into operation, to the auxiliary of furnace area
Equipment carries out cooling down；
7) industrial fresh water introduced in step 5) is not supplemented water, auxiliary is set full of after ancillary equipment alone cycle pipeline
Water temperature in standby alone cycle pipeline will be gradually increasing；
After waiting for a period of time, if water temperature over-high, it is unable to satisfy the requirement that equipment cools, then opens the 6th control
Valve will have the industrial fresh water of room temperature from the first control valve by the high water discharge a part of temperature into recycling collector at this time
Into in ancillary equipment alone cycle pipeline, to reduce the temperature of cooling water in entire ancillary equipment alone cycle pipeline；
A suitable amount is opened by the 6th control valve of unlatching of interval or the 6th control valve, industrial fresh water is allowed to pass through
First control valve is continual a small amount of to be added in ancillary equipment alone cycle pipeline, to guarantee ancillary equipment alone cycle
Water temperature in pipeline meets the cooling requirement of equipment in turn；
8) when the overhaul of the equipments on production line finishes, the normal production of beginning, then first circulation pipeline has begun normal work
After work, then the first control valve and the 6th control valve are closed, stop the work of pipe pressurizing pump group, close the second control valve and the
Five control valves open third control valve and the 4th control valve, can return fully to the state normally produced.
Compared with the immediate prior art, technical solution provided by the invention has following excellent effect:
1, circulating cooling system disclosed by the invention can be realized the independent water circulating cooling of furnace area ancillary equipment,
Under improper production status, it is cold that furnace area ancillary equipment can not depend on the progress of the entire production line clean circulating water circulatory system
But.
It 2, can be immediately by clean circulating water circulating pump when steel rolling production-line stops production using technical solution provided by the invention
It stands out of service, can bear not needing the cooling temperature model of water without waiting heating furnace to cool to ancillary equipment in its region
It encloses, so as to energy saving.
3, using technical solution provided by the invention, in entire clean circulating water cooling system, except furnace area equipment with
Outer other any device fails need to stop equally wait in the case that clean circulating water pumping station operation handled
Heating furnace cooling can stop circulation, the investment upkeep operation of clean circulating water for thirty years of age, to improve the operating rate of production line.
Detailed description of the invention
Fig. 1 is the circulating cooling system circuit theory schematic diagram of steel rolling production-line in the prior art；
Fig. 2 is the circulating cooling system circuit theory schematic diagram of the steel rolling production-line in the embodiment of the present invention；
In figure: the first control valve of 1-；The second control valve of 2-；3- third control valve；The 4th control valve of 4-；5- the 5th is controlled
Valve；The 6th control valve of 6-；7- pipe pressurizing pump group；8- recycles collector；The first flow divider of 9-；The second flow divider of 10-；11-
Three flow dividers；The 4th flow divider of 12-；
Arrow represents the flow direction of recirculated water, wherein filled arrows → expression constant flow, hollow arrowBetween expression
The flowing of having a rest property.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff's every other embodiment obtained, shall fall within the protection scope of the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention be can be combined with each other.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the present invention rather than require the present invention that must be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.Term used in the present invention " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected,
It may be a detachable connection；It can be directly connected, can also be indirectly connected by intermediate member, for the common of this field
For technical staff, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Fig. 2, specific embodiments of the present invention, which provide, is able to achieve furnace area auxiliary in a kind of steel rolling production-line
The hydronic circulating cooling system of the independent water of equipment.
It includes that the equipment of furnace area needs water cooling with other that the hydronic equipment of water is needed on steel rolling production-line
Equipment.The equipment of furnace area includes water beam column and ancillary equipment, wherein water beam column uses Vaporizing cooling, auxiliary
Equipment needs the equipment of water cooling using water circulating cooling with other.Herein other need the equipment of water cooling to refer to steel rolling production-line
It is upper remove furnace area ancillary equipment other than other need water cooling equipment, in particular to main motor water cooling knapsack,
Hydraulic station, Lubricating-oil Station, central air-conditioning of electric panel room etc. as need heating furnace outside the ancillary equipment of removing furnace area
It could stop the hydronic equipment of water after cooling, this is not limited by the present invention.
The ancillary equipment of furnace area in the present invention generally refers to enter furnace into furnace and furnace rolls road, the steel billet come out of the stove
The equipment such as video camera in positioning baffle, furnace, this is not limited by the present invention.
In a specific embodiment of the present invention, the circulating cooling system on steel rolling production-line includes:
First circulation pipeline, the ancillary equipment of furnace area need the equipment of water cooling to be located at first circulation pipeline with other
On；First circulation pipeline is used to convey cooling water and then the ancillary equipment of cooling furnace area needs setting for water cooling with other
It is standby.
The water beam column of second circulation pipeline, furnace area is located on second circulation pipeline；Second circulation pipeline is used for
Convey the water Liang Lizhu of cooling water and then cooling furnace area.
Plant area's industrial fresh water main pipe rail, for providing required cooling water in circulating cooling system；In plant area's industry
New supply mains road is equipped with the first flow divider 9, and the first interface of the first flow divider 9 is connected on plant area's industrial fresh water main pipe rail,
The second interface and first circulation piping connection of first flow divider 9, the third interface and second circulation pipeline of the first flow divider 9 connect
It connects.
Ancillary equipment alone cycle pipeline, for conveying the ancillary equipment of cooling water and then cooling furnace area；?
Two circulation lines are equipped with the second flow divider 10, and the first interface and second interface of the second flow divider 10 are both connected to second circulation
On pipeline, the third interface and ancillary equipment alone cycle piping connection of the second flow divider 10, ancillary equipment alone cycle pipeline
It is connect with the ancillary equipment of furnace area.
Third control valve 3 and the 4th control valve 4, third control valve 3 and the 4th control are provided on first circulation pipeline
Valve 4 is located at the front-end and back-end of ancillary equipment, and third control valve 3 and the 4th control valve 4 can control ancillary equipment and first
The connection and disconnection of circulation line, in particular to: under normal operating conditions, while opening third control valve 3 and the 4th control valve
4, make ancillary equipment also in first circulation pipeline, ancillary equipment can be carried out by the cooling water in first circulation pipeline cold
But；Under abnormal operating state, when such as needing to stop production or overhaul out other production equipments in heating furnace outside equipment, close
Circulating cooling system in first circulation pipeline simultaneously closes off third control valve 3 and the 4th control valve 4, make ancillary equipment also with
First circulation pipeline disconnects, while opening ancillary equipment alone cycle pipeline, enable the ancillary equipment of furnace area individually into
Row water circulating cooling can immediately begin to overhaul, ensure that the peace of furnace apparatus without waiting furnace temp to reduce
Entirely, it and has saved the repair time, has improved equipment operation rate.
All flow dividers being related in the present invention, or common tee tube, as long as shunting function can be played i.e.
Can, the present invention to shunt used in equipment without limitation.
In a specific embodiment of the present invention, ancillary equipment alone cycle pipeline includes the first branch, second branch and
Three branches:
One end of the first branch is connect with the third connector of the second flow divider 10；The other end of the first branch is provided with
Three flow dividers 11, the first interface of third flow divider 11 are connect with the first branch, the second interface and third of third flow divider 11
Interface is separately connected one end of second branch and one end of third branch, is provided with the first control valve 1 on the first leg, this
One control valve 1 can control whether industrial fresh water enters in ancillary equipment alone cycle pipeline.
The other end of second branch and the rear end of ancillary equipment connect, and junction is located at ancillary equipment and the 4th control valve
Between 4；The other end of third branch and the front end of ancillary equipment connect, and junction is located at ancillary equipment and third control valve 3
Between.
Third branch road is provided with the second control valve 2 and pipe pressurizing pump group 7, and pipe pressurizing pump group 7 and third shunt
The third interface of valve 11 connects.Pipe pressurizing pump group 7 drives the flow of cooling water in ancillary equipment alone cycle pipeline right in turn
Ancillary equipment is cooled down.
Preferably, pipe pressurizing pump group 7 includes more blower pump for pipeline, can select booster pump according to practical condition
Quantity, and select desired flow and pressure, be able to satisfy the pipe pressurizing that the circulating cooling of furnace area ancillary equipment requires
Pump.More preferably, 2 booster pumps connected in parallel are selected, successively come using one, it is one spare, guarantee production normal use.
In the present invention, the type selecting of blower pump for pipeline is a kind of normal conventional type selecting mode, program are as follows: first as needed
The specification of cooling equipment, to determine the cooling water pressure and flow of needs；Because being that the blower pump for pipeline considered first drives
Dynamic small-scale self-loopa, so being directly selected according to the sample product that blower pump for pipeline manufacturing enterprise provides.
In a specific embodiment of the present invention, further preferably, the 5th control valve 5 is provided in second branch.It beats simultaneously
The second control valve 2 and the 5th control valve 5 are opened, can be formed between the cooling ancillary equipment of heating furnace water and pressurization pump group individual
Lesser circulation.
In a specific embodiment of the present invention, further includes: recovery pipe, for recycling cooling water.It is set in second branch
There is the 4th flow divider 12, and the 5th control valve 5 is connect with the second interface of third flow divider 11.The first of 4th flow divider 12 connects
Mouth and second interface are connect with second branch, and the third interface of the 4th flow divider 12 is connect with recovery pipe.In recovery pipe
It is provided with the 6th control valve 6 and recycling collector 8, and the 6th control valve 6 is connect with the third interface of the 4th flow divider 12, this
Six control valves 6 are used to control whether recovery pipe works normally and then recycle used cooling water, this is because working as pipeline
In room temperature cooling water carry out cooling equipment after, the cooling water temperature being previously used increases, at this time in the cooling circulation line of water
It continues cycling through to use to be not achieved and continues cooling technical effect, need to recycle used cooling water at this time, from
And be introduced into new industrial fresh water and enter in the cooling circulation line of water, equipment is cooled down with this.
In the present invention, the first control valve 1, the second control valve 2, third control valve 3, the 4th control valve 4, the 5th control valve
5, the 6th control valve 6 is all made of common valve.Preferably slide valve, the pressure of valve select without departing from system pressure be
Can, mainly Emergency use infrequently switchs.More preferably, all control valves of the invention are stainless steel material.
In a specific embodiment of the present invention, water beam column uses Vaporizing cooling, and ancillary equipment water is cooling, ancillary equipment packet
Include furnace and furnace rolls road, the steel billet come out of the stove enter the positioning baffle of furnace, the equipment such as video camera in furnace.
In a specific embodiment of the present invention, the cooling water conveyed in second circulation pipeline is softened water；Preferably, second
Heating furnace softening water-circulating pump is provided on circulation line, heating furnace softening water-circulating pump is for driving evaporative cooling natural circulating system
In steam water interface so that vaporization cooling water beam column.The cooling water conveyed in first circulation pipeline is clean circulating water；Preferably,
Purification water-circulating pump is provided on first circulation pipeline, the cooling water and then cooling that purification water-circulating pump is used to drive in pipeline add
The ancillary equipment in hot stove region needs the equipment of water cooling with other.
To sum up, furnace area to be needed to the circulation line of water circulation cooling device, pass through part valve and pipeline
Design, can one small circulation (ancillary equipment alone cycle pipeline) of temporary formation, can be easily from former net ring
It is independent in water circulation system (first circulation pipeline), be restored in the former clean circulating water circulatory system (first circulation pipeline).
Industrial fresh water introducing furnace area is needed the temporary partial circulating of equipment of recirculated water cooling simultaneously, and (ancillary equipment is individually followed
Endless tube road) in.The present invention is by the way of interval or small flow moisturizing, draining, and to guarantee partial circulating, (ancillary equipment is individually followed
Endless tube road) interior cooling water temperature so that meet that equipment is cooling to be required.
In addition, the present invention is it should be noted that water beam column uses the heating furnace of Vaporization Cooling, because Vaporizing cooling follows
Ring be individually it is independent, be not associated with other Water-cooling circulatings, in this case, the ancillary equipment of heating furnace subregion is used
To conventional water circulating cooling, the conventional water circulating cooling of furnace area is the unified water circulating cooling of another production line
It stands and (is known as clean circulating water cooling system under normal circumstances) come what is driven.Water beam column does not use the heating furnace of Vaporization Cooling,
It is commonly designed are as follows: the recirculated water cooling of water beam column and the recirculated water cooling of furnace area ancillary equipment are a circulatory systems, raw
The equipment of recirculated water cooling is needed in producing line, is removed other than furnace area, and there are also a set of individual clean circulating water circulatory systems, also
It is to say, in this case, production line usually has two sets of clean circulating water circulatory systems.
Technical solution of the present invention is exactly the heating furnace for being applied to water beam column and using Vaporization Cooling, this is because working as
For water beam column using the heating furnace of conventional Water Cooling Technology, the other ancillary equipments of the circulating cooling of water beam column and furnace area need to
The circulation loop for wanting water cooling is independent control with other equipment water circulating coolings in addition to the equipment of furnace area together
, there is no two technological deficiencies being related in the prior art above, the necessity also just implemented without technical solution of the present invention
Property.But the current heating furnace overwhelming majority has used Vaporization Cooling, and technical solution of the present invention has biggish meaning,
It can obtain popularization and use energetically.
Circulating cooling system to facilitate the understanding of the present invention, the present invention also provides a kind of uses of circulating cooling system
Method, application method include the following steps:
1, under normal production scenarios, first circulation pipeline and second circulation pipeline are operated normally.
2, when production line, other need the equipment of water cooling to need to overhaul or stop production, because of the water quality of industrial fresh water, Ke Yiman
The water quality requirement of sufficient furnace area ancillary equipment recirculated water cooling arrives ancillary equipment as shown in Fig. 2, introducing industrial fresh water all the way
In alone cycle pipeline.Specifically as shown in Fig. 2, on original system, increase the first control valve 1, the second control valve 2, third control
Valve 3, the 4th control valve 4, the 5th control valve 5, the 6th control valve 6 and pipe pressurizing pump group 7, and increase necessary connecting pipe,
Recovery pipe is also added, recycling collector 8 represents return water ditch or other water collection systems on production line.Practical operation
Process is as follows:
1) operation of first circulation pipeline (clean circulating water water circulating pump station) will be stopped；
2) third control valve 3 and the 4th control valve 4 are closed, the water inlet of the cooling line of the ancillary equipment of furnace area is made
It is disconnected with first circulation pipe-line system with water return pipeline；
3) the second control valve 2 and the 5th control valve 5 are then opened, the ancillary equipment and blower pump for pipeline of furnace area are made
Ancillary equipment alone cycle pipeline (individual lesser circulation) is formed between group 7；
4) the first control valve 1 is opened again, and it is independent that the industrial fresh water in plant area's industrial fresh water main pipe rail is introduced ancillary equipment
In circulation line；
5) blower pump for pipeline group 7 is opened, so that ancillary equipment alone cycle pipeline is brought into operation, to the auxiliary of furnace area
Equipment carries out cooling down；
6) industrial fresh water introduced in step 4) is not supplemented water, auxiliary is set full of after ancillary equipment alone cycle pipeline
Water temperature in standby alone cycle pipeline will be gradually increasing；
After waiting for a period of time, if water temperature over-high, it is unable to satisfy the requirement that equipment cools, then opens the 6th control
Valve 6 at this time controls the industrial fresh water for having room temperature from first by the high water discharge a part of temperature into recycling collector 8
Valve 1 enters in ancillary equipment alone cycle pipeline, to reduce the temperature of cooling water in entire ancillary equipment alone cycle pipeline；
Herein it should be understood that it is involved in the present invention to waiting time, water temperature reach how much to be just recovered etc. be as needed
The specific requirement of the equipment of recirculated water cooling.It is room temperature there are also the cooling water newly introduced in the application, is to meet in actual production
The requirement of cooling equipment, while the temperature of industrial fresh water is more much lower than the water temperature of clean circulating water, having industrial fresh water also has centainly
Heating heat absorption space.
A suitable amount is opened by the 6th control valve 6 of unlatching of interval or the 6th control valve 6, makes industrial fresh water logical
Cross that the first control valve 1 is continual a small amount of to be added in ancillary equipment alone cycle pipeline, to guarantee that ancillary equipment is independent
Water temperature in circulation line meets the cooling requirement of equipment in turn；
7) when the overhaul of the equipments on production line finishes, the normal production of beginning, then first circulation pipeline has begun normal work
After work, then the first control valve 1 and the 6th control valve 6 are closed, stop the work of pipe pressurizing pump group 7, closes the second control valve 2
With the 5th control valve 5, third control valve 3 and the 4th control valve 4 are opened, the state normally produced can be returned fully to.
In conclusion the present invention has following advantageous effects:
The invention discloses on a kind of steel rolling production-line, furnace area ancillary equipment (includes into coming out of the stove under normal circumstances
Video camera etc. in roller-way, positioning baffle and furnace) the hydronic technical solution of independent water.The program is a set of easy by being arranged
Circulation loop, it is cooling come the alone cycle of completing furnace area equipment, and overcome in the prior art production line water-cooling recycle
The cooling water of furnace area equipment drawback existing in the case where being provided by production line clean circulating water pumping plant is unified in system: 1)
End-of-life state, before temperature does not lower in heating furnace, clean circulating water cannot stop, and in this case, only Reheating Furnace Zone equipment needs
Minimal amount of cooling water is wanted, other regions no longer need, and cause the waste of the energy；Once 2) other except heating furnace
Equipment breaks down, and needs the case where stopping clean circulating water, suffers from heating in-furnace temperature height, needs the limit of the cooling equipment of clean circulating water
System tends not to stop cooling water development upkeep operation in time.
Present embodiment discloses a kind of steel rolling production-line, furnace area, the ancillary equipments for needing circulating water, pass through
The technology of the present embodiment is implemented, and under improper production status, may be implemented only in Reheating Furnace Zone device within the domain recirculated water cooling
Ability, to reach two purposes: first is that the clean circulating water for stopping production line immediately may be implemented in steel rolling production-line end-of-life state
The circulatory system, without waiting heating furnace in-furnace temperature to be reduced to the temperature range that area's device within the domain does not need recirculated water cooling, from
And energy consumption is saved；Second is that other device fails except heating furnace, needing to stop production line clean circulating water circular flow
In the case where, after the implementation of the present embodiment, the alone cycle mode of furnace area equipment water cooling can be started immediately, together
When stop production line clean circulating water operation, without wait furnace temp reduce, can immediately begin to overhaul, both ensure that plus
The safety of hot stove equipment, and the repair time has been saved, improve equipment operation rate.
The realization of technical solution of the present invention, cooling water used in circulation line are to give the preparation of heating furnace evaporated cooling system
The industrial fresh water of softened water passes through the optimization to former furnace area ancillary equipment water circulation pipe, increased portion sub-valve, pipeline
With blower pump for pipeline and it is necessary control driving power mode, come the ability for making system have alone cycle.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Mind and principle within, any modification, equivalent replacement, improvement and so on, accompanying claims protection scope of the present invention it
It is interior.
Claims (12)
1. the circulating cooling system on a kind of steel rolling production-line, which is characterized in that need cooling equipment on steel rolling production-line
Equipment including furnace area and other need the equipment of water cooling, the equipment of the furnace area includes water beam column and auxiliary
Help equipment, wherein the water beam column uses Vaporizing cooling, and the ancillary equipment and described other need the equipment of water cooling to use
Water circulating cooling；Circulating cooling system on the steel rolling production-line includes:
First circulation pipeline, the ancillary equipment of the furnace area and described other need the equipment of water cooling to be located at described first
On circulation line；The first circulation pipeline is used to convey ancillary equipment and the institute of cooling water and then the cooling furnace area
State other equipment for needing water cooling；
The water beam column of second circulation pipeline, the furnace area is located on the second circulation pipeline；The second circulation
Pipeline is used to convey the water Liang Lizhu of cooling water and then the cooling furnace area；
Plant area's industrial fresh water main pipe rail, for providing required cooling water in circulating cooling system；In plant area's industry
New supply mains road is equipped with the first flow divider, and the first interface of first flow divider is connected to plant area's industrial fresh water general pipeline
On the road, the second interface of first flow divider and the first circulation piping connection, the third interface of first flow divider
With the second circulation piping connection；
Ancillary equipment alone cycle pipeline, for conveying the ancillary equipment of cooling water and then the cooling furnace area；Institute
Second circulation pipeline is stated equipped with the second flow divider, the first interface and second interface of second flow divider are both connected to described
On second circulation pipeline, the third interface of second flow divider and the ancillary equipment alone cycle piping connection are described auxiliary
The independent circulation line of equipment is helped to connect with the ancillary equipment of the furnace area；
Third control valve and the 4th control valve, the third control valve and the described 4th are provided on the first circulation pipeline
Control valve is located at the front-end and back-end of the ancillary equipment, and the third control valve and the 4th control valve can control institute
State the connection and disconnection of ancillary equipment Yu the first circulation pipeline.
2. circulating cooling system as described in claim 1, which is characterized in that the ancillary equipment alone cycle pipeline includes
The first branch, second branch and third branch；
One end of the first branch is connect with the third connector of second flow divider；The other end of the first branch is set
It is equipped with third flow divider, the first interface of the third flow divider is connect with the first branch, and the of the third flow divider
Two interfaces and third interface are separately connected one end of the second branch and one end of the third branch；
The first control valve is provided in the first branch.
3. circulating cooling system as described in claim 2, which is characterized in that the other end of the second branch with it is described auxiliary
The rear end of equipment is helped to connect, and junction is between the ancillary equipment and the 4th control valve；
The other end of the third branch is connect with the front end of the ancillary equipment, and junction is located at the ancillary equipment and institute
It states between third control valve.
4. circulating cooling system as described in claim 2, which is characterized in that the third branch road is provided with the second control
Valve and pipe pressurizing pump group, and the pipe pressurizing pump group is connect with the third interface of the third flow divider.
5. circulating cooling system as described in claim 2, which is characterized in that be provided with the 5th control in the second branch
Valve.
6. circulating cooling system as described in claim 5, which is characterized in that further include: recovery pipe, for recycling cooling
Water；
The 4th flow divider, and the second interface of the 5th control valve and the third flow divider are equipped in the second branch
Connection；
The first interface and second interface of 4th flow divider are connect with the second branch, and the of the 4th flow divider
Three interfaces are connect with the recovery pipe.
7. circulating cooling system as described in claim 6, which is characterized in that be provided with the 6th control in the recovery pipe
Valve and recycling collector, and the 6th control valve is connect with the third interface of the 4th flow divider.
8. circulating cooling system as described in claim 1, which is characterized in that the cooling conveyed in the second circulation pipeline
Water is softened water.
9. circulating cooling system as described in claim 8, which is characterized in that be provided with heating on the second circulation pipeline
Furnace softens water-circulating pump, heating furnace softening water-circulating pump be used to drive the steam water interface in evaporative cooling natural circulating system into
And water Liang Lizhu described in Vaporizing cooling.
10. circulating cooling system as described in claim 1, which is characterized in that conveyed in the first circulation pipeline cold
But water is clean circulating water.
11. circulating cooling system as described in claim 10, which is characterized in that be provided on the first circulation pipeline net
Change water-circulating pump, the purification water-circulating pump is used to drive the auxiliary of the cooling water in pipeline and then the cooling furnace area
Equipment and it is described other need water cooling equipment other need the equipment of water cooling.
12. a kind of application method of the circulating cooling system as described in claim 1-11 is any, which is characterized in that the use
Method includes the following steps:
1) under normal production scenarios, first circulation pipeline and second circulation pipeline are operated normally；
2) when other need the equipment of water cooling to need to overhaul or stop production when production line, the operation of first circulation pipeline will be stopped；
3) third control valve and the 4th control valve are closed, water inlet and the return water of the cooling line of the ancillary equipment of furnace area are made
Pipeline is disconnected with first circulation pipe-line system；
4) the second control valve and the 5th control valve are then opened, is made between the ancillary equipment of furnace area and pipe pressurizing pump group
Form ancillary equipment alone cycle pipeline；
5) the first control valve is opened again, and the industrial fresh water in plant area's industrial fresh water main pipe rail is introduced into ancillary equipment alone cycle pipe
Lu Zhong；
6) blower pump for pipeline group is opened, so that ancillary equipment alone cycle pipeline is brought into operation, to the ancillary equipment of furnace area
Carry out cooling down；
7) industrial fresh water introduced in step 5) is not supplemented water, ancillary equipment list full of after ancillary equipment alone cycle pipeline
Water temperature in only circulation line will be gradually increasing；
After waiting for a period of time, if water temperature over-high, it is unable to satisfy the requirement that equipment cools, then opens the 6th control valve,
By the high water discharge a part of temperature into recycling collector, the industrial fresh water for having room temperature is entered from the first control valve at this time
In ancillary equipment alone cycle pipeline, to reduce the temperature of cooling water in entire ancillary equipment alone cycle pipeline；
A suitable amount is opened by the 6th control valve of unlatching of interval or the 6th control valve, allows industrial fresh water by first
Control valve is continual a small amount of to be added in ancillary equipment alone cycle pipeline, to guarantee ancillary equipment alone cycle pipeline
Interior water temperature meets the cooling requirement of equipment in turn；
8) when the overhaul of the equipments on production line finishes, the normal production of beginning, then first circulation pipeline has begun normal work
Afterwards, then the first control valve and the 6th control valve are closed, the work of pipe pressurizing pump group is stopped, closing the second control valve and the 5th control
Valve processed opens third control valve and the 4th control valve, can return fully to the state normally produced.
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| CN201711184166.3A CN108168319B (en) | 2017-11-23 | 2017-11-23 | Hydrologic cycle cooling system and its application method on steel rolling production-line |
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| CN201711184166.3A CN108168319B (en) | 2017-11-23 | 2017-11-23 | Hydrologic cycle cooling system and its application method on steel rolling production-line |
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| CN108168319B true CN108168319B (en) | 2019-06-18 |
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| CN108168319A (en) | 2018-06-15 |
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