CN104032099A - Hot air circulating oven - Google Patents
Hot air circulating oven Download PDFInfo
- Publication number
- CN104032099A CN104032099A CN201410302621.5A CN201410302621A CN104032099A CN 104032099 A CN104032099 A CN 104032099A CN 201410302621 A CN201410302621 A CN 201410302621A CN 104032099 A CN104032099 A CN 104032099A
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- thermal
- insulating body
- contactor
- motor
- relay
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Abstract
The invention provides a hot air circulating oven. The hot air circulating oven comprises a heat insulating oven body, a heat insulating door, a driving motor, a temperature measuring tube and at least two U-shaped heating tubes, wherein the heat insulating door is rotationally mounted at an opening in the front side of the heat insulating oven body through a hinge; a door-shaped cavity is formed in the heat insulating oven body; air can be heated inside the door-shaped cavity and the driving motor can be used for driving an impeller to form air circulation type heating inside the heat insulating oven body. The hot air circulating oven has good heating uniformity and high temperature control precision.
Description
Technical field
The present invention relates to a kind of baking oven, especially a kind of for the heat treated baking oven of miniature device.
Background technology
Thermal treatment is that metallic substance is placed on to heating in certain medium, insulation, cooling, by changing material surface or inner metallurgical structure, controls a kind of metal fever complete processing of its performance.Metal heat treatmet is one of important process in machinofacture, by changing the microstructure of inside workpiece, or changes the chemical composition of workpiece surface, gives or improve the use properties of workpiece.Along with scientific and technological development, people also improve the requirement of thermal treatment process thereupon, and existing temperature uniformity is low, can not meet the heat treatment requirements to high-precision object, and baking oven volume is large, the high heat treatment process that is not suitable for small articles of cost.
Summary of the invention
The technical problem to be solved in the present invention is that baking oven for heating homogeneity of the prior art is bad, can not meet heat treatment requirements.
In order to solve the problems of the technologies described above, the invention provides a kind of Hotaircirculatingoven, comprise thermal-insulating body, heat insulation door, drive-motor, temperature tube and at least two U-shaped heating tubes, heat insulation door is arranged on the front openings place of thermal-insulating body by hinge rotary type, the left and right sides in thermal-insulating body is provided with side dividing plate, top in thermal-insulating body is provided with top spacer, left and right sidewall and the roof of side dividing plate and top spacer and thermal-insulating body forms " door " shape cavity jointly, side dividing plate is being provided with air outlet near the position of thermal-insulating body bottom, top spacer place is provided with air intake vent, temperature tube and U-shaped heating tube are all from the cavity between left and right edges insertion side dividing plate and the thermal-insulating body left and right sidewall at thermal-insulating body top, thermal-insulating body top is provided with motor window is installed, the main shaft of drive-motor is provided with impeller, drive-motor is vertically arranged on motor and installs on window, impeller is installed between window and air intake vent at motor, the two ends of U-shaped heating tube are provided with the terminal stud for connecting power supply, in the left and right edges at thermal-insulating body top, be also provided with terminal box, terminal stud is positioned at terminal box.
Adopt and in thermal-insulating body, form " door " shape cavity, by impeller, the gas in thermal-insulating body is drawn into heating in " door " shape cavity, getting rid of from air outlet, form the heat-processed of an internal recycle, heating uniformity is improved significantly; Adopt, at U-shaped heating tube place, temperature tube is set, can be inserted in the temperature of monitoring at any time U-shaped heating tube in temperature tube by tempilstick, improve the accuracy of temperature control of baking oven.
Scheme as a further improvement on the present invention, the top of thermal-insulating body is also provided with air outlet.Adopt air outlet the gas that adds thermal expansion can be discharged fast, reduce baking oven inner air pressure.
Scheme as a further improvement on the present invention, the top of thermal-insulating body is also provided with thermometer hole, and thermometer hole runs through thermal-insulating body and top spacer, is inserted with the thermometer of tape relay contact output in thermometer hole.Adopt the thermometer of tape relay contact output can realize the temperature of gas in automatic control baking oven.
Scheme as a further improvement on the present invention, heat insulation door is provided with handle.Adopt handle conveniently to open or close and close heat insulation door.
Scheme as a further improvement on the present invention, also comprises a housing, is provided with governor circuit, heating control circuit, draught fan control circuit and overtemperature alarm circuit in housing;
Governor circuit comprises the isolator that end of incoming cables is connected with three-phase supply, the leading-out terminal of isolator is connected with the end of incoming cables of the second contactor main contact with the first contactor main contact respectively, first leading-out terminal of contactor main contact and the end of incoming cables of solid state relay are connected, the leading-out terminal of the second contactor main contact is connected with the end of incoming cables of thermo-relay Heating element, the leading-out terminal of solid state relay is connected with terminal stud after overcurrent fuse, and the leading-out terminal of thermo-relay Heating element is connected with drive-motor;
Heating control circuit comprises the heater switch being serially connected in successively on 220V power supply, normally closed contact, the normally closed contact of the second contactor and the coil of the first contactor of the first rly., and the coil two ends of the first tentaculum are also parallel with burner on light;
Draught fan control circuit comprises the blower fan halt switch, fan starting switch, the coil of the second contactor and the normally closed contact of thermo-relay that are serially connected in successively on 220V power supply, and the two ends of fan starting switch are also parallel with the normally opened contact of the second contactor;
Overtemperature alarm circuit comprises and the normally opened contact and the alarm lamp that are serially connected in successively the rly. on 220V power supply, and the coil of rly. is connected with thermometer, and the two ends of described alarm lamp are also parallel with the coil of the first rly..
Adopt housing to control in real time the work of U-shaped heating tube and drive-motor, improve the automatic control performance of baking oven, and can carry out overtemperature alarm to gas temperature in baking oven.
Scheme as a further improvement on the present invention, is also provided with the power light being connected with 220V power supply in housing.
Beneficial effect of the present invention is: (1) adopts and in thermal-insulating body, forms " door " shape cavity, by impeller, the gas in thermal-insulating body is drawn into heating in " door " shape cavity, getting rid of from air outlet, the heat-processed that forms an internal recycle, is improved significantly heating uniformity; (2) adopt, at U-shaped heating tube place, temperature tube is set, can be inserted in the temperature of monitoring at any time U-shaped heating tube in temperature tube by tempilstick, improve the accuracy of temperature control of baking oven.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is side-view of the present invention;
Fig. 3 is the vertical view of thermal-insulating body of the present invention;
Fig. 4 is governor circuit schematic diagram of the present invention;
Fig. 5 is auxiliary control circuit schematic diagram of the present invention.
Embodiment
As Figure 1-3, Hotaircirculatingoven of the present invention comprises thermal-insulating body 1, heat insulation door 2, drive-motor 3, temperature tube 7 and at least two U-shaped heating tubes 5, heat insulation door 2 is arranged on the front openings place of thermal-insulating body 1 by hinge 10 rotary types, the left and right sides in thermal-insulating body 1 is provided with side dividing plate 11, top in thermal-insulating body 1 is provided with top spacer 12, side dividing plate 11 and top spacer 12 form " door " shape cavity jointly with left and right sidewall and the roof of thermal-insulating body 1, side dividing plate 11 is being provided with air outlet 18 near the position of thermal-insulating body 1 bottom, top spacer 12 places are provided with air intake vent 19, temperature tube 7 and U-shaped heating tube 5 are all from the cavity between left and right edges insertion side dividing plate 11 and the thermal-insulating body 1 left and right sidewall at thermal-insulating body 1 top, thermal-insulating body 1 top is provided with motor window 16 is installed, the main shaft of drive-motor 3 is provided with impeller 4, drive-motor 3 is vertically arranged on motor and installs on window 16, impeller 4 is installed between window 16 and air intake vent 19 at motor, the two ends of U-shaped heating tube 5 are provided with the terminal stud 6 for connecting power supply, in the left and right edges at thermal-insulating body 1 top, be also provided with terminal box 8, terminal stud 6 is positioned at terminal box 8.
As shown in Figure 3, for the gas that adds thermal expansion being discharged to thermal-insulating body 1 fast, be also provided with air outlet 17 at the top of thermal-insulating body 1.
As shown in Figure 3, in order to realize the temperature of gas in automatic control baking oven, top at thermal-insulating body 1 is also provided with thermometer hole 15, thermometer hole 15 runs through thermal-insulating body 1 and top spacer 12, in thermometer hole 15, be inserted with the thermometer 13 of tape relay contact output, this kind of thermometer can directly be bought existing product, and as the thermometer that model is YMBGT-1-OUT, its temperature arranges scope for-55 degree are to 125 degree.
As shown in Figure 2, to close heat insulation door 2 in order conveniently opening or closing, on heat insulation door 2, to be provided with handle 9.
As shown in Fig. 1,3-5, in order to improve the automatic control performance of baking oven, Hotaircirculatingoven of the present invention also comprises a housing 14, is provided with governor circuit, heating control circuit, draught fan control circuit and overtemperature alarm circuit in housing 14;
Governor circuit comprises the isolator QS that end of incoming cables is connected with three-phase supply, the leading-out terminal of isolator QS is connected with the end of incoming cables of the second contactor KM2 main contact with the first contactor KM1 main contact respectively, the leading-out terminal of the first contactor KM1 main contact is connected with the end of incoming cables of solid state relay SSR, the leading-out terminal of the second contactor KM2 main contact is connected with the end of incoming cables of thermo-relay KH1 Heating element, the leading-out terminal of solid state relay SSR is connected with terminal stud 6 after overcurrent fuse, and the leading-out terminal of thermo-relay KH1 Heating element is connected with drive-motor 3;
Heating control circuit comprises normally closed contact, the normally closed contact of the second contactor KM2 and the coil of the first contactor KM1 of the heater switch SA1, the first relay K A1 that are serially connected in successively on 220V power supply, and the coil two ends of the first tentaculum KM1 are also parallel with burner on light HG;
Draught fan control circuit comprises the blower fan halt switch SB1, the coil of fan starting switch S B2, the second contactor KM2 and the normally closed contact of thermo-relay KH1 that are serially connected in successively on 220V power supply, and the two ends of fan starting switch S B2 are also parallel with the normally opened contact of the second contactor KM2;
Overtemperature alarm circuit comprises and the normally opened contact and the alarm lamp HR1 that are serially connected in successively the rly. TC1 on 220V power supply, and the coil of rly. TC1 is connected with thermometer 13, and the two ends of alarm lamp HR1 are also parallel with the coil of the first relay K A1.
As shown in Figure 5, in housing 14, be also provided with the power light HY being connected with 220V power supply.
This Hotaircirculatingoven is in the time of work, first press fan starting switch S B2, the coil of the second contactor KM2 obtains electric, the normally opened contact of the second contactor KM2 and main contact closure, by drive-motor 3 impeller 4 at the interior internal recycle wind that forms of thermal-insulating body 1, and then press heater switch SA1, U-shaped heating tube 5 is connect to electricity, recirculating air is heated, when monitoring temperature, thermometer 13 reaches in limited time, the normally opened contact adhesive of relay TC1, the coil of the first relay K A1 obtains electric, the normally closed contact of the first relay K A1 disconnects, the coil losing electricity of the first tentaculum KM1, the main contact of the first tentaculum KM1 disconnects, 5 power-off of U-shaped heating tube, thereby avoid Heating temperature too high.
Claims (6)
1. a Hotaircirculatingoven, it is characterized in that: comprise thermal-insulating body (1), heat insulation door (2), drive-motor (3), temperature tube (7) and at least two U-shaped heating tubes (5), described heat insulation door (2) is arranged on the front openings place of thermal-insulating body (1) by hinge (10) rotary type, the left and right sides in described thermal-insulating body (1) is provided with side dividing plate (11), top in described thermal-insulating body (1) is provided with top spacer (12), described side dividing plate (11) and top spacer (12) form " door " shape cavity jointly with left and right sidewall and the roof of thermal-insulating body (1), described side dividing plate (11) is being provided with air outlet (18) near the position of thermal-insulating body (1) bottom, described top spacer (12) locates to be provided with air intake vent (19), described temperature tube (7) and U-shaped heating tube (5) are all from the cavity between left and right edges insertion side dividing plate (11) and thermal-insulating body (1) the left and right sidewall at thermal-insulating body (1) top, described thermal-insulating body (1) top is provided with motor window (16) is installed, the main shaft of described drive-motor (3) is provided with impeller (4), described drive-motor (3) is vertically arranged on motor and installs on window (16), described impeller (4) is positioned at motor and installs between window (16) and air intake vent (19), the two ends of described U-shaped heating tube (5) are provided with the terminal stud (6) for connecting power supply, in the left and right edges at described thermal-insulating body (1) top, be also provided with terminal box (8), described terminal stud (6) is positioned at terminal box (8).
2. Hotaircirculatingoven according to claim 1, is characterized in that: the top of described thermal-insulating body (1) is also provided with air outlet (17).
3. Hotaircirculatingoven according to claim 1, it is characterized in that: the top of described thermal-insulating body (1) is also provided with thermometer hole (15), described thermometer hole (15) runs through thermal-insulating body (1) and top spacer (12), is inserted with the thermometer (13) of tape relay contact output in described thermometer hole (15).
4. Hotaircirculatingoven according to claim 1, is characterized in that: described heat insulation door (2) is provided with handle (9).
5. Hotaircirculatingoven according to claim 1, is characterized in that: also comprise a housing (14), be provided with governor circuit, heating control circuit, draught fan control circuit and overtemperature alarm circuit in described housing (14);
Described governor circuit comprises the isolator (QS) that end of incoming cables is connected with three-phase supply, the leading-out terminal of described isolator (QS) is connected with the end of incoming cables of the second contactor (KM2) main contact with the first contactor (KM1) main contact respectively, the leading-out terminal of described the first contactor (KM1) main contact is connected with the end of incoming cables of solid state relay (SSR), the leading-out terminal of described the second contactor (KM2) main contact is connected with the end of incoming cables of thermo-relay (KH1) Heating element, the leading-out terminal of described solid state relay (SSR) is connected with terminal stud (6) after overcurrent fuse, the leading-out terminal of described thermo-relay (KH1) Heating element is connected with drive-motor (3),
Described heating control circuit comprises the heater switch (SA1) being serially connected in successively on 220V power supply, normally closed contact, the normally closed contact of the second contactor (KM2) and the coil of the first contactor (KM1) of the first rly. (KA1), and the coil two ends of described the first tentaculum (KM1) are also parallel with burner on light (HG);
Described draught fan control circuit comprises the blower fan halt switch (SB1), fan starting switch (SB2), the coil of the second contactor (KM2) and the normally closed contact of thermo-relay (KH1) that are serially connected in successively on 220V power supply, and the two ends of described fan starting switch (SB2) are also parallel with the normally opened contact of the second contactor (KM2);
Described overtemperature alarm circuit comprises and the normally opened contact and the alarm lamp (HR1) that are serially connected in successively the rly. (TC1) on 220V power supply, the coil of described rly. (TC1) is connected with thermometer (13), and the two ends of described alarm lamp (HR1) are also parallel with the coil of the first rly. (KA1).
6. Hotaircirculatingoven according to claim 5, is characterized in that: in described housing (14), be also provided with the power light (HY) being connected with 220V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410302621.5A CN104032099B (en) | 2014-06-27 | 2014-06-27 | A kind of heated-air circulation oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410302621.5A CN104032099B (en) | 2014-06-27 | 2014-06-27 | A kind of heated-air circulation oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104032099A true CN104032099A (en) | 2014-09-10 |
| CN104032099B CN104032099B (en) | 2016-08-24 |
Family
ID=51463092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410302621.5A Expired - Fee Related CN104032099B (en) | 2014-06-27 | 2014-06-27 | A kind of heated-air circulation oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104032099B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560425A (en) * | 2017-09-30 | 2018-01-09 | 志圣科技（广州）有限公司 | Vacuum pressure baking box |
| CN109210884A (en) * | 2018-08-17 | 2019-01-15 | 京港工业炉科技(苏州)有限公司 | A kind of heated-air circulation oven for Ni―Ti anode drying |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0673437A (en) * | 1992-04-17 | 1994-03-15 | Daido Steel Co Ltd | Method for uniformizing carbide grain in spheroidizing annealing of high carbon chromium bearing steel wire rod |
| CN2283655Y (en) * | 1996-01-26 | 1998-06-10 | 机械工业部无锡油泵油嘴研究所 | Car-type heated air circulation heat treating furnace |
| CN101118113A (en) * | 2007-09-07 | 2008-02-06 | 上海中加电炉有限公司 | Heated air circulation bake oven |
| CN202063970U (en) * | 2011-05-26 | 2011-12-07 | 湖南新新线缆有限公司 | Pot type heated air circulation annealing furnace |
| CN203960257U (en) * | 2014-06-27 | 2014-11-26 | 江苏中热机械设备有限公司 | A kind of Hotaircirculatingoven |
-
2014
- 2014-06-27 CN CN201410302621.5A patent/CN104032099B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0673437A (en) * | 1992-04-17 | 1994-03-15 | Daido Steel Co Ltd | Method for uniformizing carbide grain in spheroidizing annealing of high carbon chromium bearing steel wire rod |
| CN2283655Y (en) * | 1996-01-26 | 1998-06-10 | 机械工业部无锡油泵油嘴研究所 | Car-type heated air circulation heat treating furnace |
| CN101118113A (en) * | 2007-09-07 | 2008-02-06 | 上海中加电炉有限公司 | Heated air circulation bake oven |
| CN202063970U (en) * | 2011-05-26 | 2011-12-07 | 湖南新新线缆有限公司 | Pot type heated air circulation annealing furnace |
| CN203960257U (en) * | 2014-06-27 | 2014-11-26 | 江苏中热机械设备有限公司 | A kind of Hotaircirculatingoven |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560425A (en) * | 2017-09-30 | 2018-01-09 | 志圣科技（广州）有限公司 | Vacuum pressure baking box |
| CN109210884A (en) * | 2018-08-17 | 2019-01-15 | 京港工业炉科技(苏州)有限公司 | A kind of heated-air circulation oven for Ni―Ti anode drying |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104032099B (en) | 2016-08-24 |
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Granted publication date: 20160824 Termination date: 20200627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |