CN202786337U - Radiant tube heating device for furnace for heat treatment - Google Patents
Radiant tube heating device for furnace for heat treatment Download PDFInfo
- Publication number
- CN202786337U CN202786337U CN 201220341259 CN201220341259U CN202786337U CN 202786337 U CN202786337 U CN 202786337U CN 201220341259 CN201220341259 CN 201220341259 CN 201220341259 U CN201220341259 U CN 201220341259U CN 202786337 U CN202786337 U CN 202786337U
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- heat treatment
- flange
- furnace
- radiant tube
- radiator tube
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Abstract
The utility model relates to a radiant tube heating device for a furnace for heat treatment, which belongs to the radiant tube heating device and solves the problem that the radiant tube in the existing device is easy to burn through and is not easy to discover after being damaged. The radiant tube heating device comprises a radiant pipe inserted into the furnace for heat treatment, a combustion device inserted into the radiant tube and a sleeve, wherein the flange of the combustion device is fixed to a furnace wall flange of the furnace for heat treatment through a bolt, and a radiant tube flange is clamped between the two flanges; the sleeve is sleeved on the radiant tube and surrounds the outer wall of the radiant tube, wherein a closed space is formed between the sleeve and the radiant tube, the radiant tube flange is provided with a horizontal hole and a vertical hole communicated with each other, and the horizontal hole goes to the space between the sleeve and the radiant tube; and the vertical hole goes to an exhaust detector arranged outside the furnace for heat treatment. According to the device, since the sleeve is arranged on the outer wall of the radiant tube, the service life of the radiant tube is prolonged; even if the tube is burnt through, exhaust gas does not enter the furnace for heat furnace, and the damaged radiant tube can be immediately found by exhaust detection, radiant tubes do not need to be changed in batches, therefore, the production cost is lowered.
Description
Technical field
The utility model relates to a kind of radiation tube heater, refers in particular to the radiation tube heater in the steel plate heat treatment furnace.
Background technology
Along with industrial expansion, more and more higher to the requirement of workpiece heating process, comprise also that wherein requirement heats with the stove of nonoxidizing heating.
Radiator tube possesses the function of nonoxidizing heating as the industrial furnace of thermal source, and its purposes enlarges increasingly for this reason.As the radiator tube of thermal source, because fuel is at combustion inner pipe, therefore, it requires the designed radiator tube also can perfect combustion when the air consumption coefficient is low, and the radiator tube tube wall is without superheating phenomenon, and furnace temperature is even.
Because the radiator tube heating has avoided being heated oxidation and the decarburization on surface effectively, this is just for to heat-treat the condition created under protective atmosphere.Continuous lifting along with the high value added product market demand, the construction of producing the requisite modernized thermal treatment visual plant one radiant tube type heat treatment furnace of high value added product also grows with each passing day, example, for satisfying the market needs, adopted equally this a kind of indirect heating element of this advanced radiator tube on the heat-treatment production line of Metallurgy Industry steel plate, can make products of combustion and heated parts spaced-apart.
The radiator tube kind is a lot of at present.External existing part series product, and developed and be applicable to heat and erosion-resisting ceramic tube radiator.Yet they also exist the problems such as resistance to air loss and life-span.The radiator tube that uses on the heat-treatment production line of the above-mentioned Plate Steel of example is often burnt, and burns the position usually in refractory materials inside, and blowing out also can't be checked through damage location.And radiator tube be in case will be caused waste gas to enter in the stove by being burnt, and not only service line can't normally move, and the operation that also has influence on high value added product guarantees ability, and the performance of production capacity has been subject to having a strong impact on especially.
Fig. 1 is existing radiation tube heater structural representation, and background radiation pipe heating device 100 comprises as shown in the figure:
The principle of work of above-mentioned radiation tube heater:
Combustion gas, is passed to heat on the ceramic component 12 by fuel burner nozzle 13 burnings from combustion unit 19, makes radiator tube 11 heatings, so that temperature raises in the heat treatment furnace.But the temperature the highest (A place among Fig. 1) that fuel burner nozzle 13 burnings place produce, the waste gas that radiator tube 11 the easiest being burnt herein, radiator tube 11 are burnt in the rear pipe will be gone in the heat treatment furnace, affects the thermal effectiveness of steel plate, also can cause the rollgang dross, affect plate surface quality.Because breakage can't be checked through in refractory materials inside again, in the time of can only leaning on cycle management radiating pipes in batch is changed lower machine, therefore the radiator tube consumption of this heating unit is large, and production cost is high.
The utility model content
The purpose of this utility model is the problem that exists in order to overcome prior art, a kind of heat treatment furnace radiator tube is provided, the radiator tube long service life of this structure, even burnt, waste gas can not enter in the heat treatment furnace yet, and can targetedly the radiator tube of breakage be changed lower machine, needn't batch replacement.
The purpose of this utility model is achieved through the following technical solutions:
A kind of radiation tube heater of heat treatment furnace comprises: radiator tube, and it is inserted in the heat treatment furnace, is plugged with ceramic component in the pipe, and the outer end is in heat treatment furnace outward and connects a radiator tube flange; Combustion unit with fuel burner nozzle, its burner one end is inserted in the radiator tube and near ceramic component, its outer end is in heat treatment furnace outward and connects a combustion unit flange, by bolt and nut with the combustion unit flange) be connected and fixed with the furnace wall flange that is fixed in the heat treatment furnace furnace wall, described radiator tube flange is clamping between combustion unit flange and furnace wall flange, it is characterized in that also comprising:
Distant collar is weldingly fixed on the outer wall that radiator tube is positioned at the nearly ceramic component zero position in fuel burner nozzle exit;
Sleeve pipe is placed on radiator tube and is positioned at the outer wall outside that surrounds combustion unit, and casing inner diameter has a pitch space between the two greater than the radiator tube external diameter, and sleeve pipe one end and described distant collar are welded and fixed, and the other end and described radiator tube flange welding are fixed;
Described radiator tube flange is provided with a horizontal apertures and a vertical aperture, and horizontal apertures one end leads to the pitch space of described sleeve pipe and radiator tube, and the other end is installed a plug; One end of vertical aperture communicates with horizontal apertures, and the other end connects a hollow joint;
The waste gas detector places outside the described heat treatment furnace, and it is connected with an end of a flexible pipe, and the other end of flexible pipe is connected with described hollow joint.
Described waste gas detector is the CO (carbon monoxide converter) gas detector.
Described flexible pipe is the hose of nitrile rubber.
The beneficial effects of the utility model:
Heat treatment furnace radiation tube heater of the present utility model is because increasing by a sleeve pipe at the radiator tube outer wall, even radiator tube is burnt, waste gas can not enter in the heat treatment furnace yet, therefore can not affect the thermal effectiveness of steel plate and damage miscellaneous equipment, and can find very soon damaged radiator tube by the waste gas detector to the detection of waste gas, machine under the radiator tube that this is damaged is changed when blowing out, needn't the batch replacement radiator tube, in addition because the radiator tube in this device has increased a sleeve pipe, service life of radiant tubes in machine work-ing life greatly, guarantee that heat treatment furnace keeps the normal operation of long period, therefore the structure of this heating unit has been saved the spare parts consumption of radiator tube greatly, has reduced production cost.
For further specifying above-mentioned purpose of the present utility model, constructional feature and effect, below with reference to accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is existing radiation tube heater structural representation;
Fig. 2 is radiation tube heater structural representation of the present utility model;
Fig. 3 is the local enlarged diagram of B part among Fig. 2.
Embodiment
Accompanying drawing below in conjunction with embodiment is elaborated to embodiment of the present utility model.
Referring to Fig. 2 and Fig. 3, heat treatment furnace radiation tube heater of the present utility model is to improve on the basis of as shown in Figure 1 existing heat treatment furnace radiation tube heater.As shown in Figure 2, this heat treatment furnace radiation tube heater comprises outside the parts shown in Figure 1, also comprises:
Distant collar 21 is weldingly fixed on the outer wall that radiator tube 11 is positioned at nearly ceramic component 12 zero positions in fuel burner nozzle 13 exits;
Described radiator tube flange 16 is provided with a horizontal apertures 26 and a vertical aperture 27, and horizontal apertures 26 1 ends lead to the pitch space of sleeve pipe 22 and radiator tube 11, and the other end is installed a plug 28 makes it airtight; One end of vertical aperture 27 communicates with horizontal apertures 26, and the other end connects a hollow joint 25;
In the said apparatus, when A place among radiator tube 11(Fig. 2) by after being burnt, waste gas after the burning will enter in the pitch space of sleeve pipe 22 and radiator tube 11, at this moment be an enclosed space because of the pitch space between sleeve pipe 22 and the radiator tube 11, waste gas can not enter in the heat treatment furnace, waste gas can enter in the waste gas detector 23 along horizontal apertures 26 and vertical aperture 27 and by hollow joint 25 and flexible pipe 24, waste gas detector 23 will be reported to the police, operator just can judge that immediately this radiator tube is damaged, machine under nearest furnace outage time is changed it, and other unbroken radiator tube needn't be changed.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the purpose of this utility model, and be not with opposing restriction of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.
Claims (3)
1. the radiation tube heater of a heat treatment furnace comprises: radiator tube (11), and it is inserted in the heat treatment furnace, is plugged with ceramic component (12) in the pipe, and it is outer and connect a radiator tube flange (16) that the outer end is in heat treatment furnace; Combustion unit (19) with fuel burner nozzle (13), its burner one end is inserted in the radiator tube (11) and near ceramic component (12), its outer end is in heat treatment furnace outward and connects a combustion unit flange (18), by bolt and nut (17) combustion unit flange (18) and the furnace wall flange (15) that is fixed in the heat treatment furnace furnace wall are connected and fixed, described radiator tube flange (16) is clamping between combustion unit flange (18) and furnace wall flange (15), it is characterized in that also comprising:
Distant collar (21) is weldingly fixed on the outer wall that radiator tube (11) is positioned at the nearly ceramic component in fuel burner nozzle (13) exit (12) zero position;
Sleeve pipe (22), be placed on radiator tube (11) and be positioned at the outer wall outside that surrounds combustion unit (19), sleeve pipe (22) internal diameter is greater than radiator tube (11) external diameter, one pitch space is arranged between the two, sleeve pipe (22) one ends and described distant collar (21) are welded and fixed, and the other end and described radiator tube flange (16) are welded and fixed;
Described radiator tube flange (16) is provided with a horizontal apertures (26) and a vertical aperture (27), and horizontal apertures (26) one ends lead to the pitch space of described sleeve pipe and radiator tube, and the other end is installed a plug (28); One end of vertical aperture (27) communicates with horizontal apertures (26), and the other end connects a hollow joint (25);
Waste gas detector (23) places outside the described heat treatment furnace, and its end with a flexible pipe (24) is connected, and the other end of flexible pipe (24) is connected with described hollow joint (25).
2. the radiation tube heater of heat treatment furnace as claimed in claim 1 is characterized in that:
Described waste gas detector (23) is the CO (carbon monoxide converter) gas detector.
3. the radiation tube heater of heat treatment furnace as claimed in claim 1 is characterized in that:
Described flexible pipe (24) is the hose of nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341259 CN202786337U (en) | 2012-07-13 | 2012-07-13 | Radiant tube heating device for furnace for heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341259 CN202786337U (en) | 2012-07-13 | 2012-07-13 | Radiant tube heating device for furnace for heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202786337U true CN202786337U (en) | 2013-03-13 |
Family
ID=47813640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220341259 Expired - Lifetime CN202786337U (en) | 2012-07-13 | 2012-07-13 | Radiant tube heating device for furnace for heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202786337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846162A (en) * | 2015-05-11 | 2015-08-19 | 夏云美 | Flame jetting pipe for quenching |
-
2012
- 2012-07-13 CN CN 201220341259 patent/CN202786337U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846162A (en) * | 2015-05-11 | 2015-08-19 | 夏云美 | Flame jetting pipe for quenching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |