CN201288207Y - Automatic cooling-down system of car-type heat treatment furnace - Google Patents
Automatic cooling-down system of car-type heat treatment furnace Download PDFInfo
- Publication number
- CN201288207Y CN201288207Y CNU2008201596801U CN200820159680U CN201288207Y CN 201288207 Y CN201288207 Y CN 201288207Y CN U2008201596801 U CNU2008201596801 U CN U2008201596801U CN 200820159680 U CN200820159680 U CN 200820159680U CN 201288207 Y CN201288207 Y CN 201288207Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- exhaust
- vacuum fan
- car
- type heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Furnace Details (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses an automatic cooling system of a car-type heat-treating furnace is characterized by comprising a plurality of exhaust openings which are evenly arranged on the top of a furnace body, wherein regulating valves are installed on each of the exhaust openings, every exhaust pipe is connected on an exhaust main pipe, an exhaust fan is arranged on the exhaust main pipe, and further comprising an regulating system of the exhaust fan rotational speed which is used to control the rotational speed of the exhaust fan to realize the even temperature drop in a furnace tank according to the temperature reduction curve. The regulating system of the exhaust fan rotational speed comprises a flame couple used for measuring the furnace temperature which is arranged in the furnace tank, a temperature controller which is connected with the flame couple, and is used to convert a temperature signal into a direct current voltage signal of DC0-10V, and a frequency converter which receives the direct current voltage signal output by the temperature controller, controls and adjusts the rotational speed of the exhaust fan. The automatic cooling system of a car-type heat-treated furnace can lower the temperature according to the given temperature reduction curve in the technical process of lowering the temperature of the furnace tank, and can save energy.
Description
Technical field
The utility model relates to a kind of car-type heat treating furnace, especially relates to a kind of automatic cooling system of car-type heat treating furnace.
Background technology
Along with the develop rapidly of science and technology, the requirement to thermal treatment process in the heat treatment industry is more and more higher, so that also more and more higher to the requirement of use equipment.The technological process that intensification, insulation, cooling all can be arranged in the technology of tempering heat treated usually, and heating-up time, soaking time, temperature fall time there is strict requirement, as for the control of heating-up time, soaking time comparative maturity, just can realize by programmable temp controlled meter, and existing Equipment for Heating Processing all can not realize cooling according to processing requirement mostly.With the car-type heat treating furnace is example, mostly be the mode of taking with the stove naturally cooling, when lowering the temperature, needs lower the temperature by closing heating system, reduction along with temperature, the speed of cooling also slows down thereupon, and the tightness system that at this moment then take to open fire door, unclamps chassis is accelerated cooling rate, but the homogeneity that this mode is difficult to grasp the speed of cooling and keeps temperature in the stove, can't satisfy the requirement of technology, thereby have influence on workpiece quality.
The utility model content
Technical problem to be solved in the utility model provides a kind of car-type heat treating furnace that can make in the technological process of cooling, according to the system of the temperature lowering curve cooling of setting.
For solving the problems of the technologies described above, the utility model provides a kind of car-type heat treating furnace automatic cooling system, it is characterized in that: be included in a plurality of venting ports that the body of heater top evenly is provided with, each exhaust ports is installed a variable valve, each vapor pipe is connected on the exhaust-gas receiver, and exhaust-gas receiver is provided with a vacuum fan; Also comprise the rotating speed that is used to control vacuum fan, thereby realize the vacuum fan speed adjustment system that temperature evenly descends according to temperature lowering curve in the burner hearth, described vacuum fan speed adjustment system comprises:
Be arranged at the thermopair that is used to measure temperature in the stove in the burner hearth;
The temp controlled meter that links to each other, is used for temperature signal is converted to the d. c. voltage signal of DC0-10V with described thermopair;
The frequency transformer of the rotating speed of vacuum fan is also controlled, is adjusted in reception by the d. c. voltage signal of described temp controlled meter output.
The beneficial effect that the utility model reached:
The automatic cooling system of car-type heat treating furnace of the present utility model uses vacuum fan to extract furnace air, rather than the mode of employing naturally cooling, temperature in the easier control stove of this method, simultaneously, by the vacuum fan speed adjustment system rotating speed of vacuum fan is controlled, can be implemented in the technological process of burner hearth cooling, can lower the temperature according to the temperature lowering curve of setting, but and save energy again.
Description of drawings
Fig. 1 is the vacuum fan speed adjustment system electrical schematic diagram of the automatic cooling system of car-type heat treating furnace of the present utility model.
Embodiment
The automatic cooling system of a kind of car-type heat treating furnace of the present utility model, it is characterized in that: be included in a plurality of venting ports that the body of heater top evenly is provided with, each exhaust ports is installed a variable valve, and each vapor pipe is connected on the exhaust-gas receiver, and exhaust-gas receiver is provided with a vacuum fan; Also comprise the rotating speed that is used to control vacuum fan, thereby realize the vacuum fan speed adjustment system that temperature evenly descends according to temperature lowering curve in the burner hearth, described vacuum fan speed adjustment system comprises: be arranged at the thermopair that is used to measure temperature in the stove in the burner hearth; The temp controlled meter that links to each other, is used for temperature signal is converted to the d. c. voltage signal of DC0-10V with described thermopair; The frequency transformer of the travelling speed of vacuum fan is also controlled, is adjusted in reception by the d. c. voltage signal of described temp controlled meter output.
Car-type heat treating furnace has adopted at the body of heater top several venting ports has been set uniformly, each venting port is installed a variable valve, each vapor pipe is received on the exhaust-gas receiver again, a vacuum fan is set on exhaust-gas receiver, close the variable valve of exhaust ports when workpiece heats, prevent temperature leak.Then open variable valve when needing cooling, the switch of opening vacuum fan gets final product.
Fig. 1 is the vacuum fan speed adjustment system electrical schematic diagram of the automatic cooling system of car-type heat treating furnace of the present utility model.
After described thermopair detects the interior temperature of burner hearth, temp controlled meter is given frequency transformer with the d. c. voltage signal that temperature signal converts DC0-10V to, the running frequency that frequency transformer is regulated vacuum fan continuously according to the temp controlled meter variation of output signals, thus the rotating speed of change vacuum fan is realized the control to cooling rate.
The regulating effect polarity of temp controlled meter is set at positive interaction, promptly freezes, configure the time of the starting temperature of cooling, the temperature of reducing to, cooling again.The DC0 of temp controlled meter-10V output signal is received on the terminal in mimic input signal source of frequency transformer, and the select command source of frequency transformer is set at by terminal strip to be imported.
Also comprise an intermediate relay in addition, the outside of a contact short circuit temp controlled meter of described intermediate relay does not have operation and the reset switch in the crimping point, startup and halt switch on another contact short circuit frequency transformer.Open the starting switch SA of vacuum fan, start a miniature intermediate relay KA, at this moment begin to begin cooling by starting temperature according to the temperature fall time of setting, detect the d. c. voltage signal of the temperature variations output 0-10V in the burner hearth to frequency transformer according to thermopair simultaneously, frequency transformer is constantly adjusted the travelling speed of vacuum fan according to the size of signal, the vacuum fan rotating speed slows down when cooling rate is too fast in the burner hearth, until minimum; Cooling rate is crossed vacuum fan faster rotational speed when slow in the burner hearth, until maximum.So just realized the cooling of the temperature homogeneous and controllable in the burner hearth.
The rotating speed of the automatic cooling system vacuum fan of a kind of car-type heat treating furnace of the present utility model is controlled by frequency transformer, has played the effect of energy-saving consumption-reducing; Simple to operate, centralized Control only needs can realize cooling according to temperature reduction technology behind the startup blower fan; Simultaneously, can guarantee that furnace temperature according to the controlled realization cooling of processing requirement, the too fast or slow excessively phenomenon of cooling rate can not occur; And temperature reduces uniformly in the burner hearth, has avoided workpiece local cooling too fast, and workpiece is handled uneven phenomenon.
Claims (2)
1. automatic cooling system of car-type heat treating furnace, it is characterized in that: be included in a plurality of venting ports that the body of heater top evenly is provided with, each exhaust ports is installed a variable valve, and each vapor pipe is connected on the exhaust-gas receiver, and exhaust-gas receiver is provided with a vacuum fan; Also comprise the rotating speed that is used to control vacuum fan, thereby realize the vacuum fan speed adjustment system that temperature evenly descends according to temperature lowering curve in the burner hearth, described vacuum fan speed adjustment system comprises: be arranged at the thermopair that is used to measure temperature in the stove in the burner hearth; The temp controlled meter that links to each other, is used for temperature signal is converted to the d. c. voltage signal of DC0-10V with described thermopair; The frequency transformer of the rotating speed of vacuum fan is also controlled, is adjusted in reception by the d. c. voltage signal of described temp controlled meter output.
2. the automatic cooling system of car-type heat treating furnace according to claim 1, it is characterized in that: described vacuum fan speed adjustment system also comprises an intermediate relay, the outside of a contact short circuit temp controlled meter of described intermediate relay does not have operation and the reset switch in the crimping point, startup and halt switch on another contact short circuit frequency transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201596801U CN201288207Y (en) | 2008-11-06 | 2008-11-06 | Automatic cooling-down system of car-type heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201596801U CN201288207Y (en) | 2008-11-06 | 2008-11-06 | Automatic cooling-down system of car-type heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288207Y true CN201288207Y (en) | 2009-08-12 |
Family
ID=40979885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201596801U Expired - Fee Related CN201288207Y (en) | 2008-11-06 | 2008-11-06 | Automatic cooling-down system of car-type heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288207Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381426A (en) * | 2013-07-04 | 2013-11-06 | 中钢集团邢台机械轧辊有限公司 | Automatic roller cooling temperature control method |
-
2008
- 2008-11-06 CN CNU2008201596801U patent/CN201288207Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381426A (en) * | 2013-07-04 | 2013-11-06 | 中钢集团邢台机械轧辊有限公司 | Automatic roller cooling temperature control method |
| CN103381426B (en) * | 2013-07-04 | 2015-05-13 | 中钢集团邢台机械轧辊有限公司 | Automatic roller cooling temperature control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104152668B (en) | Reduce the devices and methods therefor of heater for rolling steel billet oxidization burning loss | |
| CN104212952B (en) | The subsection blowing control method of atmosphere in vertical continuous annealing furnace stove | |
| CN101338910B (en) | Oxygen-enriched and all-oxygen combustion roller kiln combustion control method | |
| CN105864819B (en) | Multi-segment pulse combustion control system and method | |
| CN107245570A (en) | A kind of cold rolled annealed stove heat combination control method | |
| CN204644143U (en) | A kind of glass tempering cooling system and glass tempering furnace | |
| CN201288207Y (en) | Automatic cooling-down system of car-type heat treatment furnace | |
| CN206430540U (en) | A kind of drying furnace system of temperature automatic adjustment control | |
| CN104232823B (en) | Hotblast stove level pressure changes stove control method | |
| CN101552068A (en) | Preparation method of manganese-zinc ferrite core | |
| CN104805247A (en) | Energy-saving regulating and controlling method for combustion fan of blast furnace hot blast stove | |
| CN104073624A (en) | Pressure control method for furnace chamber of vertical continuous annealing furnace | |
| CN203518513U (en) | Multi-channel heat supply drying system | |
| CN101749935A (en) | Atmosphere-adjustable high-temperature haydite sintering device | |
| CN108931145A (en) | A kind of method of ceramic kiln air door automatic adjustment | |
| CN109042387B (en) | Fuzzy control method and fuzzy controller for temperature of brooding box and brooding box | |
| CN212320442U (en) | Flue gas temperature regulating device | |
| CN208733182U (en) | A kind of natural gas direct-heating type aging furnace | |
| CN207395476U (en) | A kind of cabinet-type electric furnace Temperature-controlled appliance | |
| CN211451846U (en) | Pot furnace for needle coke calcination | |
| CN202995504U (en) | Novel temperature control device | |
| CN205537067U (en) | Novel lumber dry kiln controller | |
| CN201473446U (en) | Toughened glass homogenizing furnace | |
| CN110732661A (en) | kinds of ladle baking device intelligent control system | |
| CN207567297U (en) | Non-oriented silicon steel sheet box-annealing furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20131106 |