CN2197149Y - Gas or oil circulating heater - Google Patents
Gas or oil circulating heater Download PDFInfo
- Publication number
- CN2197149Y CN2197149Y CN 94217368 CN94217368U CN2197149Y CN 2197149 Y CN2197149 Y CN 2197149Y CN 94217368 CN94217368 CN 94217368 CN 94217368 U CN94217368 U CN 94217368U CN 2197149 Y CN2197149 Y CN 2197149Y
- Authority
- CN
- China
- Prior art keywords
- circulating current
- oil
- combustion gas
- body case
- chamber body
- 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
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- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to a gas or oil circulating air flow heater, which is a heating device for drying furnaces, and the utility model is especially suitable for drying the surface of casting sand mould. The high temperature air flow which is generated by burning to be mixed with heating media (circulating air flow) directly, and workpieces are indirectly heated by the heating media to cause the workpieces to be heated under the temperature about 200 DEG or under the designated temperature to be dried. The utility model is mainly composed of the casing of a chamber body, the body of a burning cylinder which is provided with a plurality of holes, mixed clapboards of the air flow, a baffle, etc. The utility model has the advantages of simple structure, high heat efficiency, low cost and easy maintenance.
Description
The utility model relates to a kind of drying plant, particularly casts the surface drying stove, to the skin drying of casting sand type.
For solving the dry tack free problem of workpiece, normally directly heat at the indoor flame of heating, or outside heating clamber, adopt heat exchanger, the former is direct mode of heating, the latter is the indirect mode, and directly heating needs a plurality of burners, and arranges that quantity is limited, make heating-up temperature inequality in the heating clamber, directly flame produces harmful effect to workpiece easily.Burner is through the heat exchanger heat medium in the indirect mode, and the thermal efficiency is low, and complex structure is difficult in maintenance, and investment is high.
The purpose of this utility model is to solve heating indoor temperature inequality and the low problem of the thermal efficiency, under smoke evacuation (gas) temperature and situation that heat medium (circulating current) temperature equates, makes that it is simple in structure, cost is low, be easy to maintenance, be convenient to popularization.
The utility model is to realize like this, the chamber body case of this device is made up of skeleton, interior outer casing, light heat insulation material, skeleton and outer casing are the ordinary steel Welding Structure, heat-insulation layer is fixed on the outer casing with bonding agent and anchoring piece, inner casing is a corrosion resistant plate, on the body case of chamber peep hole is arranged, to observe flame.Burner block is fixed on a side of combustion gas (oil) suction flange.Electric ignition and flame monitor are made up of Pulse Electric fire rod and flame monitoring rod, can be directly installed on the body case of chamber or on the burner according to the burner classification.Dividing plate is a corrosion resistant plate, in the middle of the foreign side circular hole is arranged, and is fixed in the body case of chamber.The burning cylindrical shell adopts heat-resisting steel sheet and plate or heat proof material to make, and is distributed with a plurality of air admission holes on its circumference.Baffle plate is square or is circular, makes with heat-resisting steel sheet and plate or heat proof material, is supported and fixed in the body case of chamber.This device is arranged at the heating clamber top together with air-introduced machine, fuel gas or oil mix after burner enters the burning cylindrical shell from combustion gas (oil) suction flange through burner block with combustion air, by Pulse Electric fire rod and the ignition of flame monitoring rod, and monitoring flame and the flame-out stove of protecting.Circulating current passes through circulating current suction flange inlet chamber body case in heating clamber under the air-introduced machine effect.The hole that the sub-fraction of circulating current distributes on burning cylindrical shell circumference enters the burning cylindrical shell, with combustion gas wall place hybrid cooling for the first time within it, burning cylindrical shell center comes out to mix after baffle plate stops again, lower the temperature from the burning cylindrical shell with higher temperature still based on combustion gas.The circulating current that another major part is come in by the circulating current suction flange, opposite side in the looping pit inlet chamber body case on dividing plate, when flowing through between baffle plate and chamber body case, carry out mixed once again, make adjustment arrive the required temperature of heated parts, enter air-introduced machine by circulating current outlet(discharge) flange place then, air-flow enters blast pipe from the air-introduced machine outlet, by equally distributed spout on the blast pipe, air-flow is ejected on the workpiece that is dried, entire work process is that circulating current is in combustion gas (oil) circulating current heater, reach required heating-up temperature through three mixing, required temperature reaches by automatic adjusting flame size.
The utility model adopts the direct heat medium of flame (circulating current) High Temperature Gas that generates of promptly burn directly to mix with heat medium, passes through heat medium, indirect workpiece again.Directly Hybrid Heating makes the combustion heat be able to whole utilizations, the medium heated parts makes the workpiece thermally equivalent, heating-up temperature and this device outlet hot blast temperature one causes whole heating clamber temperature even in the heating clamber, because exhaust gas temperature equates with the heat medium temperature, far below the exhaust gas temperature of heat exchanger, improved the thermal efficiency to greatest extent.
Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.
Fig. 1 is the embodiment that uses on casting mold surface drying stove according to combustion gas (oil) the circulating current heater that the utility model proposes.
Describe the details and the working condition of concrete device of the present utility model in detail below in conjunction with Fig. 1.
This device comprises: chamber body case 1, dividing plate 2, circulating current suction flange 3, combustion gas (oil) suction flange 4, burner block 5, electric ignition and flame monitor 6, burning cylindrical shell 7, baffle plate 8, circulating current outlet(discharge) flange 9.
Combustion gas (oil) by combustion gas (oil) suction flange 4, enters burning cylindrical shell 7 through burner block 5 through the burner ejection.By the electric ignition and flame monitor 6 auto-ignition combustions that are arranged in the burning cylindrical shell 7, can regulate heating-up temperature automatically.Under air-introduced machine 11 effects, backwind tube 15 in heating clamber 13 is introduced circulating current suction flange 3 with 150～160 ℃ circulating current, sub-fraction enters burning cylindrical shell 7 by the hole that distributes on burning cylindrical shell 7 circumference, with 1600 ℃ of combustion gas at burning cylindrical shell 7 inwall places hybrid cooling to 200 ℃ for the first time, burn cylindrical shell 7 centers still based on combustion gas this moment, temperature is more than 800 ℃, circulating current comes out from burning cylindrical shell 7, after baffle plate 8 stops, air-flow carries out the second time to be mixed, and temperature is at 350-360 ℃.The annular mouth inlet chamber body opposite side of another most of circulating current of coming in from circulating current suction flange 3 through between dividing plate 2 and burning cylindrical shell 7 ends, this moment, temperature was between 150-170 ℃, and mixed air-flow carries out for the third time mixing temperature between 190-210 ℃ through twice when flowing through 1 of baffle plate 8 and chamber body case.After three mixing, circulating current is evenly heated, after temperature reaches the required temperature of workpiece, through circulating current outlet(discharge) flange 9 by the blast pipe 14 of air-introduced machine 11 in air outlet 12 is delivered to heating clamber 13, blow on the heated workpiece through the spout that distributes on the blast pipe 14, after circulating current is through the workpiece cooling, get back to the heating of combustion gas (oil) circulating current heater, so circulation again through backwind tube 13.
Claims (6)
1, a kind of combustion gas (oil) circulating current heater, be specially adapted to the dry tack free of casting surface drying oven to casting sand type, it is characterized in that it is made up of chamber body case (1), dividing plate (2), circulating current suction flange (3), combustion gas (oil) suction flange (4), burner block (5), electric ignition and flame monitor (6), burning cylindrical shell (7), baffle plate (8), circulating current outlet(discharge) flange (9).
2, combustion gas according to claim 1 (oil) circulating current heater, it is characterized in that chamber body case (1) is made of skeleton, interior outer casing and light heat insulation material, heat-insulation layer is fixed on the outer casing with binding agent and anchoring piece, inner casing is a corrosion resistant plate, and chamber body case (1) is provided with observation window to observe flame.
3, combustion gas according to claim 1 (oil) circulating current heater is characterized in that dividing plate (2) squarely, and the center has circular hole, is made by corrosion resistant plate, is fixed in the chamber body case (1).
4, combustion gas according to claim 1 (oil) circulating current heater is characterized in that electric ignition and flame monitor (6) be made up of Pulse Electric fire rod and flame monitoring rod, and the installation site can be on the chamber body case (1) or on the burner according to the burner classification.
5, combustion gas according to claim 1 (oil) circulating current heater is characterized in that, burning cylindrical shell (7) adopts heat-resisting steel sheet and plate, or heat proof material makes, and is distributed with a plurality of air admission holes on the cylindrical shell circumference.
6, combustion gas according to claim 1 (oil) circulating current heater is characterized in that baffle plate (8) adopts heat-resisting steel sheet and plate or heat proof material, and shape squarely or circle are fixed in the chamber body case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217368 CN2197149Y (en) | 1994-07-20 | 1994-07-20 | Gas or oil circulating heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217368 CN2197149Y (en) | 1994-07-20 | 1994-07-20 | Gas or oil circulating heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2197149Y true CN2197149Y (en) | 1995-05-17 |
Family
ID=33832842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94217368 Expired - Fee Related CN2197149Y (en) | 1994-07-20 | 1994-07-20 | Gas or oil circulating heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2197149Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900335B (en) * | 2009-06-01 | 2012-02-22 | 王文庭 | Premixing gas burner for brick blank drying line |
-
1994
- 1994-07-20 CN CN 94217368 patent/CN2197149Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900335B (en) * | 2009-06-01 | 2012-02-22 | 王文庭 | Premixing gas burner for brick blank drying line |
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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 |