CN209260142U - A kind of hot galvanizing annealing furnace nose humidifier - Google Patents
A kind of hot galvanizing annealing furnace nose humidifier Download PDFInfo
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- CN209260142U CN209260142U CN201822125651.XU CN201822125651U CN209260142U CN 209260142 U CN209260142 U CN 209260142U CN 201822125651 U CN201822125651 U CN 201822125651U CN 209260142 U CN209260142 U CN 209260142U
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Abstract
The utility model provides a kind of hot galvanizing annealing furnace nose humidifier.The humidifier specifically includes that humidifying pot, desalination water lines, nitrogen pipeline and control unit.Desalination water lines are humidifying pot water supply, water thermal-stable is maintained at work water temperature by the preheating water tank being arranged and operating water tank point two-stage by humidifying pot, nitrogen from nitrogen pipeline is humidified, nitrogen and dry nitrogen mixing after humidification, so that it is kept certain temperature and reach defined dew point, is delivered at furnace nose.Control unit controls to adjust each piping flow and work water temperature of humidification system using the dew point of furnace nose as final goal.The humidifier is compact-sized, stable, can effectively inhibit zinc gray in furnace nose to generate, improve the galvanizing quality of belt steel surface, enter in annealing furnace after preventing a large amount of zinc fumes from floating in furnace nose, equipment in protection stove.Each function of the humidifier realizes automatic control, and Operation and Maintenance is simple.
Description
Technical field
The utility model belongs to metallurgical technology field, uses and adds more specifically to a kind of hot galvanizing annealing furnace nose
Wet device.
Background technique
In order to inhibit the generation of zinc gray in hot galvanizing annealing furnace nose, the galvanizing quality of belt steel surface is improved, is occurred
Various furnace nose humidifiers, but because different defects is individually present, cause humidifying effect unsatisfactory.Existing humidification
There are following technical problems for device:
(1) the humidifying pot some of existing humidifier is supplied regardless of preheating water tank and operating water tank, i.e. only one operating water tank
It is easy to cause in humidifying pot that water temperature fluctuation is larger when water, influences humidifying effect and control precision, some is even divided, work
Water tank and preheating water tank are separately independently arranged, and centre is connected with pipeline, and space occupied is larger, and system is more numerous and more jumbled.
(2) existing humidifier can not achieve the closed-loop control of dew point in furnace nose, and operation stability is poor, be easy to cause furnace
Dew point is fluctuated in nose, cannot preferably inhibit the generation of zinc gray in furnace nose and guarantee that production is continuous stable in high quality
Operation.
In conclusion needing to develop, one kind is simple and practical, and securely and reliably, high degree of automation meets process control needs
Furnace nose humidifier.
Utility model content
Based on background above technology, the utility model provides a kind of hot galvanizing annealing furnace nose humidifier.The heat
Galvanization annealing furnace furnace nose is simple with humidifier structure, and zinc gray in furnace nose can be inhibited to generate to the maximum extent, completely real
Now automatically control.
In order to achieve the goal above, the utility model uses following technical scheme:
On the one hand the utility model provides a kind of hot galvanizing annealing furnace nose humidifier, which includes:
Humidifying pot is divided into the preheating water tank for being provided with electric heater and operating water tank；
Desalination water lines connect with the preheating water tank, supply water for it；Water into preheating water tank enters institute by overflow
State operating water tank；
Nitrogen pipeline, including nitrogen header pipe road, humidified nitrogen pipeline, dry nitrogen pipeline and dry and wet nitrogen mixed pipe line；Institute
It states nitrogen header pipe road and is delivered to humidified nitrogen pipeline and dry nitrogen pipeline respectively after depressurizing high pressure nitrogen；The humidification nitrogen
Nitrogen is passed through the operating water tank water level or less and humidified by air pipe, and the nitrogen after humidification passes through the tank deck of the humidifying pot
Discharge, and converge with dry nitrogen pipeline into dry and wet nitrogen mixed pipe line；The dry and wet nitrogen mixed pipe line other end and furnace nose
Son connection；
Control unit is used to control and regulate the flow of each pipeline, and control electric heater using furnace nose dew point as target
Make-and-break time to adjust the temperature of preheating water tank and operating water tank.
The gas used in hot galvanizing annealing furnace nose humidifier is generally nitrogen, and bleed pressure is more steady
It is fixed；Other protective gas, such as nitrogen and the gaseous mixture of hydrogen etc. can also be used.Use then nitrogen pipeline when other protective gas
In be passed through other protective gas, the nitrogen in the utility model in the pipelines such as described nitrogen pipeline without limitation, uses
The scheme of other protection gas is still fallen in the protection scope of the utility model.
Further, the preheating water tank and operating water tank are provided with temperature element；
The operating water tank is provided with water-level gauge and liquid-level switch；The temperature element and water-level gauge connect with control unit
It connects.
Further, the humidified nitrogen pipeline includes nitrogen pipeline and nitrogen pipeline after humidification before humidifying；
Nitrogen pipeline is connect with nitrogen header pipe road before the humidification；The tank of nitrogen pipeline and the humidifying pot after the humidification
Nitrogen after humidification is passed through dry and wet nitrogen mixed pipe line by top connection；
The dry and wet nitrogen mixed pipe line is connect by metal hose with the furnace nose.
It further, include steam-water separator in nitrogen pipeline after the humidification.
Further, nitrogen pipeline and dry nitrogen pipeline are provided with flow-through orifice and flow control valve before the humidification；
The flow-through orifice and flow control valve are connect with control unit.
Further, the nitrogen header pipe road includes pressure reducing valve and pressure gauge.Pressure gauge is pressure gauge on the spot.
Further, heating device, attemperator and dew point hygrometer are provided with outside the dry and wet nitrogen mixed pipe line；It is described to add
Thermal, attemperator and dew point hygrometer are connect with control unit.
Further, the heating device is electrically heated rod, and attemperator is electric tracing thermal insulation band.
It further, include solenoid valve in the desalination water lines；The solenoid valve is connect with control unit.
Further, it is provided with desorption tube at the top of the humidifying pot, bottom is provided with safety overflow pipe；The preheating water tank
Drainpipe is provided with operating water tank bottom.
In addition, the hot galvanizing annealing furnace for containing the humidifier of the utility model also belongs to the protection model of the utility model
Within enclosing.
The utility model has the beneficial effects that
(1) the utility model furnace nose humidifier, compact-sized, connection and reasonable arrangement.
(2) the utility model furnace nose humidifier may be implemented the closed-loop control of dew point in furnace nose, accurately control furnace
Intranasal dew point meets technique requirement, effectively inhibits the generation of the intranasal zinc gray of furnace.
(3) the utility model furnace nose humidifier, safe and reliable, the superpressure and when water level superelevation in humidifying pot,
Water in humidifying pot can be discharged from overflow pipe automatically, will not flow into furnace nose by nitrogen pipeline after humidification, prevent water from entering
There is explosion accident in zinc pot, guarantees the safe operation of production.
(4) the utility model furnace nose humidifier, operation control is simple, high degree of automation, in humidifying pot water temperature and
Liquid level realizes automatic control, does, the automatic adjustment of wet nitrogen flow, accurate to control dew point in furnace nose, inhibits to the maximum extent
The intranasal zinc gray of furnace generates, and improves the galvanizing quality of belt steel surface.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the hot galvanizing annealing furnace nose humidifier of the preferred embodiment in the utility model.
Attached drawing acceptance of the bid note is respectively as follows: 1, humidifying pot；2, preheating water tank's temperature element；3, desalination water lines；4, solenoid valve；5,
Preheating water tank's drainpipe；6, preheating water tank's electric heater；7, operating water tank electric heater；8, operating water tank drainpipe；9, it works
Water tank temperature element；10, liquidometer；11, liquid-level switch；12, safety overflow pipe；13, desorption tube；14, nitrogen header pipe road；15,
Pressure reducing valve；16, pressure gauge on the spot；17, nitrogen pipeline before humidifying；18, humidified nitrogen flow-through orifice；19, humidified nitrogen flow tune
Save valve；20, nitrogen pipeline is done；21, dry nitrogen flow orifice plate；22, dry nitrogen flow regulating valve；23, nitrogen pipeline after humidifying；
24, steam-water separator；25, dry and wet nitrogen mixed pipe line；26, electric-heating belt；27, thermocouple；28, dry and wet mixes nitrogen dew point
Instrument；29, metal hose；30, furnace nose dew point hygrometer.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one below with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not be limited the protection scope of the present invention.
Hot galvanizing annealing furnace nose humidifier disclosed by the utility model mainly includes following sections: humidifying pot,
Desalination water lines, nitrogen pipeline and control unit.
Wherein desalination water lines are humidifying pot water supply, and humidifying pot divides two-stage will by the preheating water tank being arranged and operating water tank
Water thermal-stable is maintained at work water temperature, humidifies to the nitrogen from nitrogen pipeline, and nitrogen pipeline is again by the nitrogen after humidification
Gas and the mixing of dry nitrogen, make it keep certain temperature and reach defined dew point, be delivered at furnace nose.
Control unit controls to adjust each piping flow and working water of humidification system using the dew point of furnace nose as final goal
Temperature, so that the dew point of furnace nose reaches technique requirement.
The humidifying pot of the utility model realizes the subregion of preheating water tank and operating water tank in a tank, when ensure that water supply
It not will cause the problem that water temperature fluctuation is larger in humidifying pot, ensure that humidifying effect and control precision.Meanwhile it is compact-sized, it accounts for
According to space it is few, and do not need that additional pipeline is arranged.The control unit of the utility model is with the dew point of furnace nose for final mesh
The operation of mark control humidifier, realizes the closed-loop control of dew point in furnace nose, operation stability increases substantially, preferably
It inhibits the generation of zinc gray in furnace nose and ensure that the continuous stable operation in high quality of production.
Specifically, the utility model provides a preferred embodiment, as shown in Figure 1: in the hot galvanizing annealing furnace, wherein
Furnace nose humidifier include:
Humidifying pot 1, tank is interior to be divided into two parts of preheating water tank and operating water tank with intermediate bulkhead.Preheating water tank is provided with pre-
Boiler electric heater 6 and preheating water tank's temperature element 2；Operating water tank is provided with operating water tank electric heater 7 and operating water tank
Temperature element 9 also sets up liquidometer 10 and liquid-level switch 11.Desorption tube 13 is equipped at the top of humidifying pot 1, preheating water tank bottom is equipped with
Preheating water tank's drainpipe 5, operating water tank bottom are equipped with operating water tank drainpipe 8, and humidifying pot 1 is additionally provided with safety overflow pipe 12.
Desalination water lines 3, connect with preheating water tank, supply water for it；Into preheating water tank water be preheated after pass through overflow
Into operating water tank.Solenoid valve 4 is provided in desalination water lines 3, to control the water supply of desalination water lines 3.
Nitrogen pipeline, including nitrogen header pipe road 14, humidified nitrogen pipeline, dry nitrogen pipeline 20 and dry and wet nitrogen mixed pipe line
25；Humidified nitrogen pipeline includes nitrogen pipeline 17 and nitrogen pipeline 23 after humidification before humidifying.The nitrogen header pipe road 14 is by subtracting
Pressure valve 15 is delivered to nitrogen pipeline 17 and dry nitrogen pipeline 20 before humidification respectively after depressurizing high pressure nitrogen；Nitrogen before the humidification
Nitrogen is passed through the operating water tank water level or less and humidified by pipeline 17, and the nitrogen after humidification passes through the tank of the humidifying pot 1
Top row goes out, and converges with dry nitrogen into dry and wet nitrogen mixed pipe line 25；25 other end of dry and wet nitrogen mixed pipe line and furnace
Nose connection.Furnace nose dew point hygrometer 30 is provided on furnace nose.
Control unit, the dew point measured with furnace nose dew point hygrometer 30 are according to the flow for being used to control and regulate each pipeline, control
The make-and-break time of electric heater processed is to adjust the temperature of preheating water tank and operating water tank, to guarantee that the dew-point temperature of furnace nose is stablized
It is maintained in claimed range.
It is additionally provided with humidified nitrogen flow-through orifice 18 and humidified nitrogen flow control valve 19 in nitrogen pipeline 17 before humidifying, is done
Dry nitrogen flow orifice plate 21 and dry nitrogen flow regulating valve 22 are equally also equipped in nitrogen pipeline 20；Pass through flow-through orifice and stream
Adjustable valve adjusts the nitrogen flow of each pipeline.Steam-water separator 24 is provided with after humidification in nitrogen pipeline 23, to isolate
Liquid water after humidification in nitrogen.
Main operational principle: nitrogen header pipe road 14 is divided into two-way after pressure reducing valve 15, enters nitrogen pipeline before humidifying all the way
17, another way enters dry nitrogen pipeline 20, and humidified nitrogen flow-through orifice 18 and flow tune is arranged in nitrogen pipeline 17 before humidification
Valve 19 is saved, dry nitrogen flow orifice plate 21 and flow control valve 22 are set in dry nitrogen pipeline 20, can control and adjust respectively and is each
The nitrogen flow of branch line.Nitrogen pipeline 17 is connect with humidifying pot 1 before humidifying, from humidifying pot 1 after the nitrogen being passed through is humidified
Top discharge, into humidification after nitrogen pipeline 23, then enter dry and wet nitrogen after mix with the dry nitrogen in dry nitrogen pipeline 20 and mix
Pipeline 25 is closed, dry and wet is sent into furnace nose lower part workspace, zinc of zinc pot ullage, to inhibit furnace after mixing the heated heat preservation of nitrogen
Intranasal zinc gray generates, and avoids a large amount of zinc fumes from forming zinc gray after furnace intranasally floats and falls in belt steel surface, improves strip table
Face quality, while also zinc fume being prevented to enter in annealing furnace, equipment in protection stove.
Specifically, the humidifying pot 1 includes operating water tank and preheating water tank's two parts, is equipped with thermometric in preheating water tank side
Element 2 and electric heater 6；Operating water tank side is equipped with temperature element 9 and electric heater 7 and liquidometer 10 and liquid-level switch 11.
Nitrogen is passed into the operating water tank of humidifying pot 1 by pipeline 17 before humidifying and is humidified.
Water temperature in 1 two water tanks of humidifying pot independently controls, and the purpose that preheating water tank is arranged is prevented to humidifying pot 1
Water temperature fluctuation when water supply in operating water tank is larger, influences the stability contorting of humidified nitrogen dew point, i.e., is not by room temperature demineralized water
Be passed directly into operating water tank, but be first passed into preheating water tank, it is preheated after again overflow into operating water tank, thus
It ensure that water temperature is constant in operating water tank, meet humidification process temperature requirement.
In addition, for the ease of rinsing and cleaning humidifying pot 1, it is equal in the operating water tank of heating tank 1 and the bottom of preheating water tank
Equipped with drainpipe 5,8, water tank side is worked at the same time equipped with safety overflow pipe 12, the design of overflow pipe open height guarantees in humidifying pot 1
Water energy is flowed out from overflow pipe 12 under the maximum pressure being likely to occur, and will not be flowed into furnace nose by nitrogen pipeline 23 after humidification.
Further, in order to guarantee the safe operation of humidifying pot 1, electric heater 6 and electric heater 7 and temperature element 2,9,
Liquidometer 10 is equipped with security interlocking protection measure, i.e., when temperature element 2,9 detects that water temperature is high in preheating water tank and operating water tank
When certain value and liquidometer 10 detect that liquid level is lower than certain value in operating water tank, by deactivated electric heater 6,7.
Desalination water lines 3 are connect with the preheating water tank of the humidifying pot 1, are provided with solenoid valve 4, on humidifying pot 1
Liquidometer 10 form an automatic control loop, when the liquid level in 1 operating water tank of humidifying pot be lower than work liquid level when, solenoid valve
4 automatically turn on, and when water level reaches working position, solenoid valve 4 is automatically closed.Liquid level in 1 operating water tank of humidifying pot in order to prevent
It automatically controls and breaks down, liquid-level switch 11 is set at the top of humidifying pot 1, when liquid level superelevation alarm.
Pressure reducing valve 15 and on the spot pressure gauge 16 are provided on nitrogen header pipe road 14, the high pressure nitrogen from general pipeline contact is through subtracting
Pressure valve 15 is divided into two-way after being decompressed to the operating pressure of humidifier requirement, enters nitrogen pipeline 17 before humidifying, another way all the way
Into dry nitrogen pipeline 20, flow-through orifice 18,21 and flow control valve 19,22 are equipped on two branch lines.Nitrogen before humidifying
Pipeline 17 is connect with humidifying pot 1, and the nitrogen that will be humidified is passed into the operating water tank of humidifying pot 1, it is humidified after nitrogen it is logical
It crosses at the top of humidifying pot 1 after flowing into humidification in nitrogen pipeline 23, the setting steam-water separator 24 on pipeline 23, after separating humidification
Liquid water in nitrogen avoids free liquid water from entering in furnace nose.
Dry and wet nitrogen mixed pipe line 25 is formed after dry nitrogen pipeline 20 is in parallel with nitrogen pipeline 23 after humidification, thereon setting electricity
Tracing thermal-insulating band 26, thermocouple 27 and dew point hygrometer 28 pass through the humidified nitrogen of heating and thermal insulation to certain temperature and dew point qualification
Metal hose 29 is sent into furnace nose.
A whole set of humidifier is control target with the intranasal dew point of furnace, using the measured value of furnace nose dew point hygrometer 30 as process values,
By adjusting the flow control valve 22, Yi Jijia humidified on flow control valve 19 and dry nitrogen pipeline 20 in preceding nitrogen pipeline 17
Water temperature in wet 1 operating water tank of tank realizes the closed-loop control of dew point in furnace nose.
The utility model hot galvanizing annealing furnace nose humidifier is compact-sized, connection and reasonable arrangement, works stable,
Securely and reliably, dew point in furnace nose can be precisely controlled and meet technique requirement, effectively inhibit the generation of zinc gray in furnace nose, improve
The galvanizing quality of belt steel surface reduces defect ware rate, brings biggish economic results in society.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is all to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The column of protection scope.
Claims (9)
1. a kind of hot galvanizing annealing furnace nose humidifier, which is characterized in that the humidifier includes:
Humidifying pot is divided into the preheating water tank for being provided with electric heater and operating water tank；
Desalination water lines connect with the preheating water tank, supply water for it；Water into preheating water tank enters the work by overflow
Make water tank；
Nitrogen pipeline, including nitrogen header pipe road, humidified nitrogen pipeline, dry nitrogen pipeline and dry and wet nitrogen mixed pipe line；The nitrogen
Gas main pipe rail is delivered to humidified nitrogen pipeline and dry nitrogen pipeline respectively after depressurizing high pressure nitrogen；The humidified nitrogen pipe
Nitrogen is passed through the operating water tank water level or less and humidified by road, and the nitrogen after humidification is arranged by the tank deck of the humidifying pot
Out, and with dry nitrogen pipeline converge into dry and wet nitrogen mixed pipe line；The dry and wet nitrogen mixed pipe line other end and furnace nose
Connection；
Control unit is used to control and regulate the flow of each pipeline using furnace nose dew point as target, and controls the logical of electric heater
The time break to adjust the temperature of preheating water tank and operating water tank.
2. humidifier according to claim 1, which is characterized in that the preheating water tank and operating water tank are provided with survey
Warm element；
The operating water tank is provided with water-level gauge and liquid-level switch；
The temperature element and water-level gauge are connect with control unit.
3. humidifier according to claim 1, which is characterized in that the humidified nitrogen pipeline includes nitrogen before humidifying
Nitrogen pipeline after pipeline and humidification；
Nitrogen pipeline is connect with nitrogen header pipe road before the humidification；The tank deck of nitrogen pipeline and the humidifying pot connects after the humidification
It is logical that nitrogen after humidification is passed through dry and wet nitrogen mixed pipe line；
It in nitrogen pipeline include steam-water separator after the humidification；The dry and wet nitrogen mixed pipe line passes through metal hose and institute
State the connection of furnace nose.
4. humidifier according to claim 3, which is characterized in that nitrogen pipeline and dry nitrogen pipeline are equal before the humidification
It is provided with flow-through orifice and flow control valve；
The flow-through orifice and flow control valve are connect with control unit.
5. humidifier according to claim 1, which is characterized in that the nitrogen header pipe road includes pressure reducing valve and pressure
Power table.
6. humidifier according to claim 1, which is characterized in that be provided with heating outside the dry and wet nitrogen mixed pipe line
Device, attemperator and dew point hygrometer；
The heating device, attemperator and dew point hygrometer are connect with control unit.
7. humidifier according to claim 6, which is characterized in that the heating device is electrically heated rod, attemperator
For electric tracing thermal insulation band.
8. humidifier according to claim 1, which is characterized in that include solenoid valve in the desalination water lines；
The solenoid valve is connect with control unit.
9. humidifier according to claim 1, which is characterized in that be provided with desorption tube, bottom at the top of the humidifying pot
It is provided with safety overflow pipe；
The preheating water tank and operating water tank bottom are provided with drainpipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822125651.XU CN209260142U (en) | 2018-12-18 | 2018-12-18 | A kind of hot galvanizing annealing furnace nose humidifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822125651.XU CN209260142U (en) | 2018-12-18 | 2018-12-18 | A kind of hot galvanizing annealing furnace nose humidifier |
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| CN209260142U true CN209260142U (en) | 2019-08-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819925A (en) * | 2019-11-15 | 2020-02-21 | 常熟科弘材料科技有限公司 | On-line treatment method for furnace nose zinc ash of galvanized strip steel production line |
| CN113063192A (en) * | 2021-04-06 | 2021-07-02 | 首钢京唐钢铁联合有限责任公司 | Humidifying device and humidifying method |
| CN115287567A (en) * | 2022-08-04 | 2022-11-04 | 江阴市华达机械科技有限公司 | Stove nose humidification system |
| CN115323301A (en) * | 2022-07-18 | 2022-11-11 | 中冶南方工程技术有限公司 | High-precision automatic humidifying system for furnace nose of cold-rolling hot-galvanizing unit |
-
2018
- 2018-12-18 CN CN201822125651.XU patent/CN209260142U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819925A (en) * | 2019-11-15 | 2020-02-21 | 常熟科弘材料科技有限公司 | On-line treatment method for furnace nose zinc ash of galvanized strip steel production line |
| CN113063192A (en) * | 2021-04-06 | 2021-07-02 | 首钢京唐钢铁联合有限责任公司 | Humidifying device and humidifying method |
| CN113063192B (en) * | 2021-04-06 | 2022-08-19 | 首钢京唐钢铁联合有限责任公司 | Humidifying device and humidifying method |
| CN115323301A (en) * | 2022-07-18 | 2022-11-11 | 中冶南方工程技术有限公司 | High-precision automatic humidifying system for furnace nose of cold-rolling hot-galvanizing unit |
| CN115287567A (en) * | 2022-08-04 | 2022-11-04 | 江阴市华达机械科技有限公司 | Stove nose humidification system |
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