CN2839935Y - Gas preheater for bell-jar furnace - Google Patents
Gas preheater for bell-jar furnace Download PDFInfo
- Publication number
- CN2839935Y CN2839935Y CN 200520077706 CN200520077706U CN2839935Y CN 2839935 Y CN2839935 Y CN 2839935Y CN 200520077706 CN200520077706 CN 200520077706 CN 200520077706 U CN200520077706 U CN 200520077706U CN 2839935 Y CN2839935 Y CN 2839935Y
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- CN
- China
- Prior art keywords
- housing
- bell jar
- air inlet
- gas preheater
- gas
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Abstract
The utility model relates to a gas preheater for a bell jar furnace, which is used for heating gas loaded to a hearth and belongs to supporting facilities for sintering kilns of electronic products. The utility model comprises a housing, wherein one end of the housing is extended with an air inlet, the air inlet is connected with an adjusting valve, and the other end is provided with a thermocouple; a heating rod is arranged on a fixing plate and is integrally contained in a housing chamber of the housing, and a ventilation chamber which is communicated with the air inlet is formed between the outer wall of the heating rod and the chamber wall of the housing chamber of the housing; electrical heating wire is contained in the heating rod, and a terminal of the electrical heating wire is fixed to the fixing plate. The utility model has the advantages of high thermal efficiency, energy saving, small size, convenient installation and replacement, etc.
Description
Technical field
The utility model relates to the gas preheater that a kind of bell jar stove is used, and is used for the gas heating of sending into burner hearth is belonged to the auxiliary facility of electronic product sintering kiln.
Background technology
Electronic product for multiple-layer sheet ceramic capacitor and so on generally adopts the bell jar stove to come sintering, the bell jar stove is furnished with gas preheater, the function of gas preheater is a preheating gas, that is to say to send being heated to required temperature (concrete temperature spot can be regulated) in the short period of time by the gas behind the humidification tube humidification into burner hearth again.
Gas preheater in the prior art is a burner hearth of introducing the bell jar stove after by a bigger heater of volume the gas of being introduced through humidification is crossed being heated by the road, before introducing burner hearth, need to distribute by the distributor at the position, gas outlet that is located at heater, and carry out flow-control, that is to say that gas preheater concentrates heating to gas.The weak point of this gas preheater shows as: concentrate the thermal efficiency of heating low, energy consumption is big; The heater volume is relatively large, is unfavorable for on-the-spot the setting; The maintaining cost is big, in case cause damage, it is big to upgrade cost.In addition, being used for the instrument that gas flow is done controlled adjusting must be that hear resistance requires very harsh instrument, therefore not only cost an arm and a leg, and rapid wear.
Summary of the invention
Task of the present utility model be a kind of efficiency of heating surface height will be provided and energy savings, volume is little and the gas preheater being convenient to install, maintaining is convenient and the little bell jar stove of replacement cost is used.
Task of the present utility model is finished like this, the gas preheater that a kind of bell jar stove is used, and it comprises that a housing 1, one end has extended an air inlet 2, is connected with control valve 12 on the air inlet 2, end is provided with a thermocouple 11 in addition; One heating rod 4, be located at and be used for the fixed disk 7 that fixes with housing 1, and integrally be received in the shell chamber of housing 1, be formed with that communicate between chamber, the shell chamber wall of the outer wall of heating rod 4 and housing 1 with air inlet 2 and and then venting cavity 3 that the gas that air inlet 2 is introduced is drawn from the gas outlet 10 of housing 1; One is contained in the electrical heating wire 6 in the heating rod 4, and the terminals 9 of electrical heating wire 6 are fixed on the fixed disk 7.
The shape of housing 1 described in the utility model is body in a tubular form, and the one end expands and to be set as one and to be used for for described fixed disk 7 and its mutually solid flange, narrowly contracts and is preset with screw thread in the narrow end of holding of contracting and hold in addition.
The material of housing 1 described in the utility model is a stainless steel.
The shape of heating rod 4 described in the utility model is body in a tubular form.
Electrical heating wire 6 described in the utility model is contained in the described heating rod 4 agley, and protects filling out with inserts 5 on every side of electrical heating wire 6.
Described in the utility modelly be bent into the U-shaped bending.
The material of inserts 5 described in the utility model is a magnesia.
The utlity model has efficiency of heating surface height, save the energy and volume is little, be convenient to advantages such as installation, replacing.
Description of drawings
Figure 1 shows that the structure chart of the gas preheater that the utility model bell jar stove is used.
Figure 2 shows that the application example figure of the utility model on the bell jar stove,
The specific embodiment
In Fig. 1, it is stainless having provided material and shape is housing 1 cylindraceous, housing 1 is a hollow, promptly receiving one with the right-hand member of shown position at an end of housing 1 is used for the gas of needs heating is incorporated into air inlet 2 in the shell chamber, be connected with a control valve 12 that is used to regulate and show gas flow on the air inlet 2, one be used to examine the thermocouple 11 of knowing and regulating the gas temperature in the shell chamber and promptly continue with the left end of shown position at the other end of housing 1, as seen from the figure, thermocouple 11 is located at the position of the gas outlet 10 of approaching housing 1 as much as possible.
Electrical heating wire 6 takes the shape of the letter U and is contained in agley in the cavity of heating rod 4, and the position, spatial domain between the cavity of electrical heating wire 6 and heating rod 4 is tamped as inserts 5 by magnesia.The terminals 9 of electrical heating wire 6 are carrier and being connected with power supply with fixed disk 7.
In Fig. 2, the body of heater 17 of bell jar stove and humidification tube 15 that humidified gases is used etc. have been provided as application example of the present utility model.Since a cover bell jar stove need a plurality of the utility model structures by gas preheater shown in Figure 1, therefore, as long as arm 19 butt joints of passing through according to the control valve on each corresponding air inlet 2 of the utility model gas preheater that needs quantity 12 on the isocon 14, and gas outlet 10 is routed to body of heater 17, continuation method both can directly continue, and also can be connected to the body of heater air inlet 18 of body of heater 17 by pipeline 16.
During use, cause isocon 14, arm 19, control valve 12, air inlet 2 introducing venting cavities 3 by the gas behind humidification tube 15 humidifications through breather pipe 13, until 10 introducing bodies of heater 17 from the gas outlet.Owing to be humidified gases, what therefore enter body of heater 17 is water vapour, and water vapour at high temperature resolves into oxygen and hydrogen after entering body of heater 17, can regulate oven cavity atmosphere.The flow size that enters the gas of air inlet 2 is controlled by control valve 12.
The structure of recommending by the utility model as can be known, it is to become the independent heating that concentrated heating in the prior art has become each junior unit, efficiency of heating surface height not only, and for installation, maintenance, to change all be very useful.
Claims (7)
1, the gas preheater used of a kind of bell jar stove is characterized in that it comprises a housing (1), and an end has extended an air inlet (2), is connected with control valve (12) on the air inlet (2), and end is provided with a thermocouple (11) in addition; One heating rod (4), be located at and be used for the fixed disk (7) that fixes with housing (1), and integrally be received in the shell chamber of housing (1), be formed with between chamber, the shell chamber wall of the outer wall of heating rod (4) and housing (1) communicate with air inlet (2) and and then venting cavity (3) that the gas that air inlet (2) is introduced is drawn from the gas outlet (10) of housing (1); One is contained in the electrical heating wire (6) in the heating rod (4), and the terminals (9) of electrical heating wire (6) are fixed on the fixed disk (7).
2, the gas preheater used of bell jar stove according to claim 1, the shape that it is characterized in that described housing (1) is body in a tubular form, the one end expands and to be set as one and to be used for for described fixed disk (7) and its mutually solid flange, narrowly contracts and is preset with screw thread in the narrow end of holding of contracting and hold in addition.
3, the gas preheater used of bell jar stove according to claim 1 and 2, the material that it is characterized in that described housing (1) is a stainless steel.
4, the gas preheater used of bell jar stove according to claim 1, the shape that it is characterized in that described heating rod (4) is body in a tubular form.
5, the gas preheater used of bell jar stove according to claim 1 is characterized in that described electrical heating wire (6) is contained in the described heating rod (4) agley, and fills out with inserts (5) around electrical heating wire (6) and protect.
6, the gas preheater used of bell jar stove according to claim 5 is characterized in that the described U-shaped bending that is bent into.
7, the gas preheater used of bell jar stove according to claim 5, the material that it is characterized in that described inserts (5) is a magnesia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077706 CN2839935Y (en) | 2005-11-13 | 2005-11-13 | Gas preheater for bell-jar furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077706 CN2839935Y (en) | 2005-11-13 | 2005-11-13 | Gas preheater for bell-jar furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2839935Y true CN2839935Y (en) | 2006-11-22 |
Family
ID=37427917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520077706 Expired - Fee Related CN2839935Y (en) | 2005-11-13 | 2005-11-13 | Gas preheater for bell-jar furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2839935Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197577A (en) * | 2020-10-10 | 2021-01-08 | 苏州汇科机电设备有限公司 | Electronic kiln with air inlet preheating function |
| CN112645569A (en) * | 2020-12-23 | 2021-04-13 | 新沂海福尔通用仪表有限公司 | Gas pressure stabilizing device of electric furnace for producing quartz pull tube |
| WO2022073296A1 (en) * | 2020-10-10 | 2022-04-14 | 苏州汇科机电设备有限公司 | Electronic furnace having uniform gas supply function |
-
2005
- 2005-11-13 CN CN 200520077706 patent/CN2839935Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197577A (en) * | 2020-10-10 | 2021-01-08 | 苏州汇科机电设备有限公司 | Electronic kiln with air inlet preheating function |
| CN112197577B (en) * | 2020-10-10 | 2021-09-21 | 苏州汇科机电设备有限公司 | Electronic kiln with air inlet preheating function |
| WO2022073296A1 (en) * | 2020-10-10 | 2022-04-14 | 苏州汇科机电设备有限公司 | Electronic furnace having uniform gas supply function |
| WO2022073295A1 (en) * | 2020-10-10 | 2022-04-14 | 苏州汇科机电设备有限公司 | Electronic kiln having inlet air preheating function |
| CN112645569A (en) * | 2020-12-23 | 2021-04-13 | 新沂海福尔通用仪表有限公司 | Gas pressure stabilizing device of electric furnace for producing quartz pull tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |