CN207904324U - A kind of annular quenching unit - Google Patents

A kind of annular quenching unit Download PDF

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Publication number
CN207904324U
CN207904324U CN201820166699.2U CN201820166699U CN207904324U CN 207904324 U CN207904324 U CN 207904324U CN 201820166699 U CN201820166699 U CN 201820166699U CN 207904324 U CN207904324 U CN 207904324U
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China
Prior art keywords
water
water ring
steel pipe
rack
annular
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CN201820166699.2U
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高璐
杜学斌
徐能惠
李永辉
邵国栋
王建国
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China National Heavy Machinery Research Institute Co Ltd
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China National Heavy Machinery Research Institute Co Ltd
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Abstract

The utility model provides a kind of annular quenching unit, including water ring, hood, rollgang, rack, lifting and guider, sink, water ring and hood are placed in rack, hood and rack cover water ring, and rack lower surface is connect with lifting and guider, sink is below rack.Multigroup, every group of independent control is arranged in water ring, can be according to the water of each water ring of technique adjustment.Lifting and guider can make water ring, hood and rack integral elevating certain distance, ensure that water ring is consistent with steel pipe centre-height.Spray nozzle device in water ring can rotate integrally certain angle; ensure that the water that nozzle sprays is ejected into tangential direction on outer surface of steel tube; the steam blanket that surface generates when breaing up steel pipe quenching; improve steel tube surface heat transfer boundary condition; improve steel pipe cooling velocity; ensure to obtain quenched martensite tissue, and prevents quenching water from being returned in glowing furnace by steel pipe inner wall reflux.

Description

A kind of annular quenching unit
Technical field
The utility model belongs to steel pipe quenching technology field, and in particular to a kind of annular quenching unit.
Background technology
When being quenched to steel pipe, the water of steel tube surface is vaporized by heating, is formed one layer of steam blanket, is made steel pipe and water Isolation, since steam blanket is the non-conductor of heat, so reducing steel pipe cooling velocity.And cooling velocity when steel pipe quenching is wanted More than critical cooling rate, required martensitic structure could be obtained.Therefore steel pipe is constantly broken up in quenching process to quench The steam blanket that surface generates when fiery improves steel tube surface heat transfer boundary condition, improves steel pipe cooling velocity, it is ensured that obtains quenched martensite Tissue.This just proposes high requirement to the sprinkler of quenching unit.
Currently, steel pipe quenching technical in the market has the quenching of " outer leaching+interior spray " formula and " leaching quench+interior spray " formula quenching, it is suitble to The quenching of the thicker steel pipe of wall thickness, the corresponding quenching unit equipment of both techniques is larger, takes up a large area, cost of investment height, and It is more demanding to heating furnace, it can only be matched with walking beam furnace.For thin-wall steel tube, thrown with both the above quenching unit It is not high to provide return rate.
Utility model content
The purpose of this utility model is to provide a kind of annular quenching unit, overcomes thin using the production of existing steel tube quenching device The existing big return rate of investment low problem when wall steel pipe.
For this purpose, the utility model provides a kind of annular quenching unit, including water ring, rack and rollgang, water spray Ring is vertical to be mounted in rack, and rollgang is placed in ground perpendicular to water ring central axis, and rollgang is located at water ring Below central axis.
The water ring includes feed pipe, and feed pipe is annular steel pipe, and both sides, which are evenly distributed, installs several and ring The branched pipe of shape steel pipe connection, branched pipe vertical connection swing arm, and swing arm one end is driven by power plant, and the other end connects nozzle Several nozzles are installed in manifold, spray nozzle manifold end.
The feed pipe is the loop configuration being integrated by flanged joint by two semicircle steel pipes.
Further include covering on water ring the hood for preventing quenching water splash everywhere.
The lifting and guiding device of its lifting of driving is installed below the rack.
Rack lower surface trepanning simultaneously welds deflector water conservancy diversion quenching water, and sink is equipped with below deflector.
The rollgang is driven by motor, rollgang axis and 5 ° of arrangements of steel pipe centerline dip in water ring.
The beneficial effects of the utility model:
(1)This annular quenching unit and its application process provided by the utility model, can with walking beam furnace and Medium Frequency Induction Heating Furnace matches, and is suitble to mating heating furnace form more;
(2)Ensure that the water that nozzle sprays is ejected into tangential direction on outer surface of steel tube, ensure steel pipe cooling velocity, it is ensured that Obtain quenched martensite tissue;
(3)In terms of steel pipe traffic direction, nozzle spray water form one it is hollow, so that quenching water is cannot be introduced into steel pipe Wall prevents quenching water from being flowed back in heating furnace along steel pipe inner wall;
(4)Reduce spray nozzle device specification, saves cost;
(5)Reduce spray nozzle device replacing construction, adjustment nozzle angle is simple and fast, reduces labour, improves production effect Rate;
(6)Sectional adjusts quenching water, adapts to the steel pipe quenching technical of different size;
(7)Hood and rack cover equipment, and quenching water is uniformly flowed in sink by weather board below rack, prevents from quenching Fine grinding is splashed;
(8)Feed pipe is connected using half flange, installation, replacement convenient for nozzle.
The utility model is described in further details below with reference to attached drawing.
Description of the drawings
Fig. 1 is the front view of annular quenching unit.
Fig. 2 is the left view sectional view of annular quenching unit.
Reference sign:1, water ring;2, hood;3, rollgang;4, rack;5, lifting and guiding device;6, sink; 7, nozzle;8, spray nozzle manifold;9, swing arm;10, branched pipe;11, feed pipe;12, power plant;13, flange;14, deflector.
Specific implementation mode
Embodiment 1:
The utility model provides a kind of annular quenching unit as depicted in figs. 1 and 2, including water ring 1, rack 4 and defeated Roller-way 3 is sent, water ring 1 is vertical to be mounted in rack 4, and rollgang 3 is placed in ground perpendicular to 1 central axis of water ring, and defeated Roller-way 3 is sent to be located at below 1 central axis of water ring.
The course of work of annular quenching unit is as follows:
Multigroup water ring 1 is installed in 4 upper edge straight line of rack, steel pipe drives following rotation side to be advanced through in rollgang 3 Water ring 1, the water that water ring 1 sprays are ejected into outer surface of steel tube with tangential direction, ensure steel pipe cooling velocity, it is ensured that quenched Fiery martensitic structure, until quenching is completed.
In terms of steel pipe traffic direction, water ring 1 spray water form one it is hollow, so that quenching water is cannot be introduced into steel pipe Wall prevents quenching water from being flowed back in heating furnace along steel pipe inner wall.
This annular quenching unit and its application process provided by the utility model, can be with walking beam furnace and intermediate frequency Induction heater matches, and is suitble to mating heating furnace form more.
Embodiment 2:
On the basis of embodiment 1, as depicted in figs. 1 and 2, the water ring 1 includes feed pipe 11, and feed pipe 11 is ring Shape steel pipe, both sides, which are evenly distributed, installs several branched pipes 10 being connected to annular steel pipe, and 10 vertical connection of branched pipe Swing arm 9, swing arm one end are driven by power plant 12, and the other end connects spray nozzle manifold 8, and several nozzles are installed in 8 end of spray nozzle manifold 7。
It should be noted that since power plant 12 is the prior art, guarantor of the concrete structure not as the utility model Point is protected, is not described in detail herein.
Power plant 12 in water ring 1 drives swing arm 9 to rotate by a certain angle around 10 center line of branched pipe, and nozzle 7 is made to spray The water gone out is ejected into outer surface of steel tube with tangential direction;When annular quenches, it can ensure that ejection flow is steady using nozzle injection Fixed, injection pressure is big, can drive swing arm that nozzle is made to rotate integrally certain angle by power plant, ensure the water that nozzle sprays It is ejected on outer surface of steel tube with tangential direction, the steam blanket that surface generates when breaing up steel pipe quenching improves steel tube surface heat exchange Condition improves steel pipe cooling velocity, it is ensured that obtains quenched martensite tissue.
In terms of steel pipe traffic direction, nozzle spray water form one it is hollow, so that quenching water is cannot be introduced into steel pipe inner wall, Prevent quenching water from being flowed back in heating furnace along steel pipe inner wall.When replacing steel pipe specification, for the steel pipe of different tube diameters, only need to adjust The adjustment of whole nozzle angles can be realized in whole power plant, reduces spray nozzle device specification, saves the time for replacing nozzle specification, The time of adjustment nozzle angle is reduced, cost-effective and labour improves production efficiency.
Embodiment 3:
On the basis of embodiment 1, the lower section of the rack 4 is installed with the lifting and guiding device 5 of its lifting of driving, needs Illustrate, lifting and guiding device 5 is existing structure, preferably, the present embodiment selection oil cylinder or electric pushrod, lifting are led 4 integral elevating of rack is driven to device 5, makes water ring, hood and rack integral elevating certain distance, ensures water ring and steel pipe Centre-height is consistent.
Annular quenching unit further includes covering on the hood 2 that quenching water splash everywhere is prevented on water ring 1, rack 4 and hood 2 Water ring is covered jointly, prevents quenching water splash everywhere.
4 lower surface trepanning of the rack simultaneously welds 14 water conservancy diversion of deflector quenching water, and 14 lower section of deflector is equipped with sink 6, will Water is quenched to import in sink 6.The feed pipe 11 is the ring junction being connected as one by flange 13 by two semicircle steel pipes Flange 13 is opened, is conveniently operated in installation and replacement nozzle 7 by structure.
Embodiment 4:
A kind of application process of annular quenching unit is present embodiments provided, multigroup water spray is installed in 4 upper edge straight line of rack Ring 1, steel pipe is advanced through water ring 1 in rotation under the driving of rollgang 3, completes the quenching of steel pipe;To different tube diameters When steel pipe is quenched, the power plant 12 in water ring 1 drives swing arm 9 to rotate by a certain angle around 10 center line of branched pipe, makes The water that nozzle 7 sprays is ejected into outer surface of steel tube with tangential direction.
It, can be according to the water of each water ring of technique adjustment 1 as shown in Fig. 2, multigroup, every group of independent control is arranged in water ring 1 Amount.
Embodiment 5:
The rollgang 3 is driven by motor, and 5 ° of arrangements of 3 axis of rollgang and steel pipe centerline dip make steel pipe side Side forwards transportation is rotated, steel pipe inhomogeneous cooling is prevented, leads to tube bending.
Embodiment 6:
The present embodiment is preferably, as shown in Fig. 2, annular quenching unit is two sets, is mounted in rack 4, to difference When the steel pipe of caliber is quenched, first motivation of adjustment device 12 is needed, it is made to drive swing arm 9 around 10 center line of branched pipe rotation one Determine angle, it is ensured that the water that nozzle 7 sprays is ejected into outer surface of steel tube with tangential direction, and then steel pipe is placed on rollgang 3, Steel pipe drives following rotation side to be advanced through water ring 1 in rollgang 3, completes the quenching of steel pipe.The water shape that water ring 1 sprays It is hollow at one, so that quenching water is cannot be introduced into steel pipe inner wall, prevents quenching water from being flowed back in heating furnace along steel pipe inner wall;Rack 4 jointly cover water ring with hood 2, prevent quenching water splash everywhere.4 lower surface trepanning of the rack simultaneously welds deflector 14 Water conservancy diversion quenches water, and 14 lower section of deflector is equipped with sink 6, quenching water is imported in sink 6.The feed pipe 11 is by two semicircles The loop configuration that shape steel pipe is connected as one by flange 13 opens flange 13 in installation and replacement nozzle 7, facilitates behaviour Make.This annular quenching unit and its application process provided by the utility model, can be with walking beam furnace and Medium frequency induction Heating furnace matches, and is suitble to mating heating furnace form more.
In conclusion annular quenching unit can be matched with walking beam furnace and Medium Frequency Induction Heating Furnace, it is suitble to Mating heating furnace form is more.When annular quenches, can ensure to spray waterflow stabilization using nozzle injection, injection pressure is big, It can drive swing arm that nozzle is made to rotate integrally certain angle by power plant, ensure that the water that nozzle sprays is sprayed with tangential direction Onto outer surface of steel tube, the steam blanket that surface generates when breaing up steel pipe quenching improves steel tube surface heat transfer boundary condition, it is cold to improve steel pipe But speed, it is ensured that obtain quenched martensite tissue.In terms of steel pipe traffic direction, nozzle spray water form one it is hollow, make Quenching water cannot be introduced into steel pipe inner wall, prevent quenching water from being flowed back in heating furnace along steel pipe inner wall.It is right when replacing steel pipe specification It in the steel pipe of different tube diameters, only needs motivation of adjustment device that the adjustment of whole nozzle angles can be realized, reduces spray nozzle device specification, The time for replacing nozzle specification is saved, the time of adjustment nozzle angle is reduced, cost-effective and labour improves production efficiency. Sectional adjusts quenching water, adapts to the quenching technical of different size steel pipe.Hood and rack cover water ring, prevent from quenching The splashing of water.Feed pipe is connected using half flange, installation, replacement convenient for nozzle.
It is exemplified as above be only to the utility model for example, not constituting to the scope of protection of the utility model Limitation, it is every to be belonged within the scope of protection of the utility model with the same or analogous design of the utility model.The present embodiment The well-known components and common structure or conventional means of the component and the structure category industry that do not describe in detail, are not chatted one by one here It states.

Claims (7)

1. a kind of annular quenching unit, it is characterised in that:Including water ring(1), rack(4)And rollgang(3), water ring (1)It is vertical to be mounted on rack(4)On, rollgang(3)Perpendicular to water ring(1)Central axis is placed in ground, and rollgang (3)Positioned at water ring(1)Below central axis.
2. annular quenching unit as described in claim 1, it is characterised in that:The water ring(1)Including feed pipe(11), supply Water pipe(11)For annular steel pipe, both sides, which are evenly distributed, installs several branched pipes being connected to annular steel pipe(10), branch Pipe(10)Vertical connection swing arm(9), swing arm one end is by power plant(12)Driving, the other end connect spray nozzle manifold(8), nozzle Manifold(8)End is installed by several nozzles(7).
3. annular quenching unit as claimed in claim 2, it is characterised in that:The feed pipe(11)It is by two semicircle steel Pipe passes through flange(13)The loop configuration being connected as one.
4. annular quenching unit as described in claim 1, it is characterised in that:Further include covering on water ring(1)On prevent from quenching The hood of water splash everywhere(2).
5. annular quenching unit as described in claim 1, it is characterised in that:The rack(4)Lower section be installed with driving its The lifting and guiding device of lifting(5).
6. annular quenching unit as described in claim 1, it is characterised in that:The rack(4)Lower surface trepanning and weld lead Flowing plate(14)Water conservancy diversion quenches water, deflector(14)Lower section is equipped with sink(6).
7. annular quenching unit as described in claim 1, it is characterised in that:The rollgang(3)It is driven, is conveyed by motor Roller-way(3)Axis and water ring(1)Interior 5 ° of arrangements of steel pipe centerline dip.
CN201820166699.2U 2018-01-31 2018-01-31 A kind of annular quenching unit Active CN207904324U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

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CN207904324U true CN207904324U (en) 2018-09-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108070701A (en) * 2018-01-31 2018-05-25 中国重型机械研究院股份公司 A kind of annular quenching unit and its application process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108070701A (en) * 2018-01-31 2018-05-25 中国重型机械研究院股份公司 A kind of annular quenching unit and its application process

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