CN209558672U - A kind of fuel gas hot-blast stove - Google Patents
A kind of fuel gas hot-blast stove Download PDFInfo
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- CN209558672U CN209558672U CN201920041014.6U CN201920041014U CN209558672U CN 209558672 U CN209558672 U CN 209558672U CN 201920041014 U CN201920041014 U CN 201920041014U CN 209558672 U CN209558672 U CN 209558672U
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Abstract
The utility model discloses a kind of fuel gas hot-blast stoves, it is related to hot-air seasoning technical field, including furnace body, it is equipped with combustion chamber in furnace body, is equipped with preheating chamber above furnace body, U-shaped heat-exchange tube is equipped in preheating chamber, it is equipped with air inlet insertion pipe above the side wall of preheating chamber side, is equipped with outlet insertion pipe below side wall, the both ends of U-shaped heat-exchange tube are plugged on respectively in air inlet insertion pipe and outlet insertion pipe, air inlet insertion pipe is connected to net wind inlet, outlet insertion pipe and net wind outlet；Gas outlet passes through furnace body and is connected to one end of preheating chamber, and the other end of preheating chamber is equipped with gas outlet；Net wind outlet is connected to across one end of furnace body with air heating chamber, and the other end of furnace body is equipped with air outlet slit, is equipped with air-introduced machine at air outlet slit.A kind of U-shaped heat-exchange tube heat exchange efficiency of fuel gas hot-blast stove of the utility model is high, is plugged on preheating chamber side wall, can reduce bring injury of expanding with heat and contract with cold, be uniformly provided with conical finned on the outer wall of combustion chamber, improve air heating efficiency.
Description
Technical field
The utility model relates to hot-air seasoning technical fields, and in particular to a kind of fuel gas hot-blast stove.
Background technique
Natural gas hot-blast stove be occur in recent years with the raising of environmental requirement it is a kind of with combustion of natural gas replace coal
The heating device of charcoal burning, in some special dimensions, due to the physical property of institute's heating material, natural gas hot-blast stove furnace body needs
Use indirect heat exchange structure as coal hot-air furnace body structure, i.e., clean air and combustion flame are different at two respectively
Flowing in cavity, in order to improve heat utilization ratio, clean air is before entering air heating chamber generally using the tail of burning
Gas is preheated, and existing preheating device is generally used and will be welded on the side wall of Heat Room between the both ends of heat-exchange tube, by
Biggish injury can be caused in the reason of expand with heat and contract with cold to side wall and heat exchanger tube, and replaces and is not easy；The surface one of heat-exchange tube
As be smooth surface, reduce the effect of heat exchange；The surface of existing furnace body is simultaneously in order to increase heat exchange area, generally in furnace
The annulus fin of helical pattern is added in body surface face, and heat exchanging fluid can form fluid layer on furnace body surface, for a long time gradually using meeting
Original flow-disturbing effect is lost, heat exchange efficiency is reduced.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of fuel gas hot-blast stove, solution exchanges heat in the prior art
Pipe is affected by thermal expansion and contraction larger and is not easy the problem of replacing.
The purpose of this utility model is realized by following technical measures:
A kind of fuel gas hot-blast stove, including furnace body, the furnace body is interior to be equipped with combustion chamber, the inner wall of the furnace body and the burning
The outer wall of room forms air heating chamber, and one end of the combustion chamber is equipped with burner, and the other end of the combustion chamber is equipped with combustion gas
Outlet, the furnace body top are equipped with preheating chamber, are equipped with U-shaped heat-exchange tube, the side wall of the preheating chamber side in the preheating chamber
Top is equipped with air inlet insertion pipe, is equipped with outlet insertion pipe below the side wall, the both ends of the U-shaped heat-exchange tube are plugged on respectively
In the air inlet insertion pipe and the outlet insertion pipe, the air inlet insertion pipe is connected to net wind inlet, the outlet insertion pipe
With net wind outlet；The gas outlet pass through the furnace body be connected to one end of the preheating chamber, the preheating chamber it is another
One end is equipped with gas outlet；The net wind outlet is connected to across one end of the furnace body with the air heating chamber, the furnace body
The other end is equipped with air outlet slit, is equipped with air-introduced machine at the air outlet slit.
Specifically, the cross section of the straight pipe of the U-shaped heat-exchange tube is waveform, each waveform is by subtriangular
Shape constitute.
Heat exchange fin is uniformly provided with specifically, setting on the outer wall of the combustion chamber.
Specifically, the heat exchange fin is conical finned.
Specifically, the diameter of the air inlet insertion pipe and the outlet insertion pipe is greater than the port of the U-shaped heat-exchange tube
1~3mm of diameter.
After above scheme, the beneficial effects of the utility model are:
A kind of U-shaped heat-exchange tube of fuel gas hot-blast stove of the utility model is connected to by air inlet insertion pipe and outlet insertion pipe
On the side wall of preheating chamber, avoids to deform caused by expanding with heat and contract with cold when U-shaped heat-exchange tube is directly welded on preheating chamber side wall and draw
The injury risen, while replacing and being easy.
Since the cross section of the straight pipe of U-shaped heat-exchange tube is waveform, each waveform is by subtriangular shape
It constitutes, improves heat exchange efficiency.
Due to being uniformly provided with conical finned on the outer wall of combustion chamber, heat exchange efficiency is improved, while will not be in burning surface shape
Stratified flow.
In conclusion a kind of U-shaped heat-exchange tube heat exchange efficiency of fuel gas hot-blast stove of the utility model is high, it is plugged on preheating chamber
On side wall, bring injury of expanding with heat and contract with cold can be reduced, is easily changed simultaneously；It is uniformly provided with conical finned on the outer wall of combustion chamber,
Improve air heating efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of pipeline cooling device of the utility model；
Fig. 2 is the cross-sectional view of the straight pipe of U-shaped heat-exchange tube in Fig. 1；
In figure: 1, furnace body, 2, combustion chamber, 3, air heating chamber, 4, burner, 5, gas outlet, 6, preheating chamber, 61, into
Gas insertion pipe, 62, outlet insertion pipe, 7, U-shaped heat-exchange tube, 8, net wind inlet, 9, the outlet of net wind, 10, gas outlet, 11, air inducing
Machine, 12, heat exchange fin.
Specific embodiment
To be easy to understand technological means, creation characteristic, the purpose reached and effect of the utility model, tie
The drawings and the specific embodiments are closed, the utility model is further described.
As shown in Figure 1, a kind of fuel gas hot-blast stove of the utility model includes furnace body 1, combustion chamber 2, furnace body 1 are equipped in furnace body 1
Inner wall and the outer wall of combustion chamber 2 form air heating chamber 3, one end of combustion chamber 2 is equipped with burner 4, the other end of combustion chamber 2
Equipped with gas outlet 5, it is equipped with preheating chamber 6 above furnace body 1, U-shaped heat-exchange tube 7 is equipped in preheating chamber 6, in order to improve heat exchange
The cross section of efficiency, the straight pipe of U-shaped heat-exchange tube 7 is waveform, and each waveform is made of subtriangular shape, is had
Body is as shown in Figure 2；It is equipped with air inlet insertion pipe 61 above the side wall of 6 side of preheating chamber, is equipped with outlet insertion pipe 62, U below side wall
The both ends of type heat-exchange tube 7 are plugged on respectively in air inlet insertion pipe 61 and outlet insertion pipe 62, and air inlet insertion pipe 61 and outlet are inserted
The diameter of adapter tube 62 is greater than 1~3mm of port diameter of U-shaped heat-exchange tube 7, and air inlet insertion pipe 61 is connected to net wind inlet 8, net wind
The top of 6 side wall of preheating chamber is arranged in import 8, and outlet insertion pipe 62 is connected to net wind outlet 9, and net 9 setting of wind outlet is preheating
The lower section of 6 side wall of room；Gas outlet 5 passes through furnace body 1 and is connected to one end of preheating chamber 6, and the other end of preheating chamber 6 is equipped with gas outlet
10；One end that net wind outlet 9 passes through furnace body 1 is connected to air heating chamber 3, and the other end of furnace body 1 is equipped with air outlet slit, and air goes out
Air-introduced machine 11 is equipped at mouthful.
It is set on the outer wall of combustion chamber 2 and is uniformly provided with heat exchange fin 12, heat exchange fin 12 is conical finned, improves heat exchange effect
Rate.
Above-described embodiment is the preferred embodiment of the utility model, but the implementation of the utility model is not by above-described embodiment
Limitation, the not detailed description section of the utility model is well-known technique.
Claims (5)
1. a kind of fuel gas hot-blast stove, including furnace body, the furnace body is interior to be equipped with combustion chamber, the inner wall of the furnace body and the combustion chamber
Outer wall form air heating chamber, one end of the combustion chamber is equipped with burner, and the other end of the combustion chamber goes out equipped with combustion gas
Mouthful, it is characterized in that: being equipped with preheating chamber above the furnace body, U-shaped heat-exchange tube, the preheating chamber side are equipped in the preheating chamber
Side wall above be equipped with air inlet insertion pipe, outlet insertion pipe is equipped with below the side wall, the both ends of the U-shaped heat-exchange tube are distinguished
It is plugged in the air inlet insertion pipe and the outlet insertion pipe, the air inlet insertion pipe is connected to net wind inlet, the outlet
Insertion pipe and net wind outlet；The gas outlet passes through the furnace body and is connected to one end of the preheating chamber, the preheating
The other end of room is equipped with gas outlet；The net wind outlet is connected to across one end of the furnace body with the air heating chamber, described
The other end of furnace body is equipped with air outlet slit, is equipped with air-introduced machine at the air outlet slit.
2. a kind of fuel gas hot-blast stove according to claim 1, it is characterized in that: the cross of the straight pipe of the U-shaped heat-exchange tube
Section is waveform, and each waveform is made of subtriangular shape.
3. a kind of fuel gas hot-blast stove according to claim 2, is uniformly provided with it is characterized in that: setting on the outer wall of the combustion chamber
Heat exchange fin.
4. a kind of fuel gas hot-blast stove according to claim 3, it is characterized in that: the heat exchange fin is conical finned.
5. a kind of fuel gas hot-blast stove described in -4 any claims according to claim 1, it is characterized in that: the air inlet insertion pipe
It is greater than 1~3mm of port diameter of the U-shaped heat-exchange tube with the diameter of the outlet insertion pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920041014.6U CN209558672U (en) | 2019-01-10 | 2019-01-10 | A kind of fuel gas hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920041014.6U CN209558672U (en) | 2019-01-10 | 2019-01-10 | A kind of fuel gas hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209558672U true CN209558672U (en) | 2019-10-29 |
Family
ID=68305935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920041014.6U Active CN209558672U (en) | 2019-01-10 | 2019-01-10 | A kind of fuel gas hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209558672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657575A (en) * | 2019-10-31 | 2020-01-07 | 江苏巨益机电有限公司 | Gas type air heater for utilizing waste heat |
-
2019
- 2019-01-10 CN CN201920041014.6U patent/CN209558672U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657575A (en) * | 2019-10-31 | 2020-01-07 | 江苏巨益机电有限公司 | Gas type air heater for utilizing waste heat |
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