CN209991475U - Flue gas turbulence device and fire tube boiler - Google Patents
Flue gas turbulence device and fire tube boiler Download PDFInfo
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- CN209991475U CN209991475U CN201920272896.7U CN201920272896U CN209991475U CN 209991475 U CN209991475 U CN 209991475U CN 201920272896 U CN201920272896 U CN 201920272896U CN 209991475 U CN209991475 U CN 209991475U
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- flue gas
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- tobacco pipe
- vortex
- heat exchange
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Abstract
The utility model relates to a flue gas vortex device, including setting up the vortex portion in the tobacco pipe, vortex portion coils the helical structure that the axis of tobacco pipe formed for the strip, and helical structure's inside form with the coaxial first flue gas passageway of tobacco pipe. The utility model provides a flue gas vortex device can make the flue gas be the heliciform trend, increases the washing away of high temperature flue gas to the tobacco pipe inner wall, and extension heat exchange time both keeps the tobacco pipe inner wall clean and improves heat exchange efficiency, and simultaneously, vortex portion around the axis form first flue gas passageway that link up from top to bottom, the flue gas circulation sectional area is great, and the resistance that the flue gas flows is less, does benefit to the unobstructed emission of flue gas. The utility model discloses still relate to a fire tube boiler, including flue gas vortex device, can keep the tobacco pipe inner wall clean, improve heat exchange efficiency simultaneously.
Description
Technical Field
The utility model relates to the technical field of boilers, especially, relate to a flue gas vortex device and firetube boiler.
Background
At present, most fire tube boilers adopt a multi-return structure, which is beneficial to improving the heat exchange effect of flue gas and the overall thermal efficiency of the boiler, but the boiler flue tubes usually adopt straight-through flues, have short strokes, cause short retention time of high-temperature flue gas in the flue tubes, and cannot achieve the optimal heat exchange effect, thereby affecting the overall thermal efficiency of the boiler. Aiming at the problem of how to improve the heat exchange efficiency, the flue gas turbulence device is designed, and the purpose is to improve the heat exchange efficiency and reduce the energy consumption by strengthening the disturbance to the flue gas. The existing flue gas turbulence device has the problems that the cross section area of flue gas flow is small, the flow resistance of the flue gas is large, the flue gas is not beneficial to smoke discharge of a flue pipe, and the heat exchange efficiency cannot be effectively improved.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the above circumstances, and is intended to overcome or alleviate one or more technical problems in the prior art.
In order to solve the technical problem, the utility model provides a flue gas vortex device, including setting up the vortex portion in the tobacco pipe, vortex portion coils for the strip the helical structure that the axis of tobacco pipe formed, and helical structure's inside form with the coaxial first flue gas passageway of tobacco pipe.
According to an embodiment, a gap is formed between the flow disturbing part and the inner wall of the smoke tube, and the gap is used as a second smoke channel.
According to one embodiment, the outer diameter of the spoiler is twice the diameter of the first flue gas channel.
According to an embodiment, one end of the smoke tube is provided with a positioning part, and one end of the turbulence part is connected with the positioning part.
According to one embodiment, the positioning part is covered at one end of the smoke tube; or
The positioning part is in threaded connection with one end of the smoke tube.
According to an embodiment, the ratio of the outer diameter of the turbulent flow part to the inner diameter of the smoke tube is in a range of 0.8-0.95.
The utility model also provides a fire tube boiler, including above-mentioned arbitrary flue gas vortex device.
One or more technical solutions of the present invention have one or more of the following advantages: the utility model provides a flue gas vortex device includes the vortex portion that sets up in the tobacco pipe, and vortex portion is the helical structure that the axis of strip coiling tobacco pipe formed, and when the flue gas flowed along the tobacco pipe, most flue gas trend was the heliciform, increased the scouring of high temperature flue gas to the tobacco pipe inner wall, prolonged the heat exchange time, both kept the inner wall of tobacco pipe clean and improved heat exchange efficiency; and a first flue gas channel coaxial with the flue pipe is formed in the spiral structure, so that the flow cross section of the flue gas is increased, the flow resistance of the flue gas is reduced, and the flue gas is favorably discharged smoothly.
Drawings
Fig. 1 shows a schematic structural view of a spoiler according to an embodiment of the present invention;
fig. 2 shows a bottom view of a spoiler of an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a flue gas turbulator according to an embodiment of the present invention;
fig. 4 shows a bottom view of a flue gas turbulator in an embodiment of the present invention;
fig. 5 shows a schematic structural view of a flue gas turbulator according to another embodiment of the present invention;
fig. 6 shows a schematic structural view of a flue gas turbulator according to another embodiment of the present invention;
in fig. 3, 5 and 6, in order to clearly illustrate the structure of the turbulent portion in the smoke tube, the smoke tube is partially cut.
In the figure: 1: a positioning part; 2: a spoiler portion; 21: a first flue gas channel; 22: a second flue gas channel; 3: a smoke tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 4, the utility model relates to a flue gas turbulence device that embodiment provided, including the vortex portion 2 that sets up in tobacco pipe 3, wherein, as shown in fig. 1, vortex portion 2 is the helical structure that the strip coiled the axis of tobacco pipe 3 and formed, under the strip state of coiling, its inboard limit has certain distance from the axis of tobacco pipe 3, makes the inside of helical structure form the first flue gas passageway 21 coaxial with tobacco pipe 3, refer to fig. 1 to 3 and show, wherein, the diameter (the internal diameter of vortex portion 2) of first flue gas passageway 21 is represented to the R2 that fig. 3 marks, and the R1 that fig. 3 marks represents the external diameter of vortex portion 2.
In the flue gas turbulence device provided by the utility model, the turbulence part 2 divides the space inside the flue tube 3 into the spiral smoke exhaust channel, the flue gas spirally flows along the coiled strip, the high-temperature flue gas is increased to wash the inner wall of the flue tube 3, the heat exchange time is prolonged, the inner wall of the flue tube 3 is kept clean, and the heat efficiency is improved; the first flue gas channel 21 in the turbulent flow part 2 increases the flow cross section of flue gas and reduces the flow resistance of the flue gas.
This flue gas vortex device has strengthened the flue gas disturbance, when improving heat exchange efficiency, compares current vortex device, and the flue gas circulation sectional area is big, and flue gas circulation resistance is little, is favorable to the unobstructed emission of flue gas, and is convenient for maintain.
It should be noted that the spiral smoke evacuation channel is formed by naturally dividing the turbulence part 2 of the spiral structure, specifically, by cutting the adjacent strips, the width of the smoke evacuation channel in the axial direction of the smoke tube 3 is substantially equal to the pitch, and the whole spiral smoke evacuation channel is spirally arranged along the spiral strips.
It should be noted that, in the present embodiment, the interior of the spoiler 2 is described as the first smoke channel 21, which is only for convenience of description and is not limited to the independence and connectivity. According to the technical scheme of the utility model, the technical scheme that should understand by the skilled person is: the turbulence part 2 is arranged in the smoke pipe in a specific shape (a spiral structure) and a specific position (arranged around the axis of the smoke pipe), the space in the smoke pipe is divided into a plurality of channels, the channels are communicated, namely the first smoke channel 21 is communicated with the spiral smoke channel, when smoke flows from the first smoke channel 21, a part of the smoke flows in the spiral smoke channel (flows spirally along the strip), and part of the smoke returns to the first smoke channel 21 after contacting the inner wall of the strip or the smoke pipe 3, so that smoke turbulence is increased, the contact area and time of the smoke with the turbulence part 2 and the smoke pipe 3 are increased, and the heat exchange effect is better.
In a preferred embodiment, as shown in fig. 3 and 4, a gap (L marked in fig. 3) is formed between the flow disturbing part 2 and the inner wall of the smoke tube 3, and the gap is used as a second smoke channel 22, that is, a second smoke channel 22 is formed between the outer part of the flow disturbing part 2 and the smoke tube, so that part of the smoke flows through the second smoke channel 22, the contact between the smoke and the smoke tube 3 and the flow disturbing part 2 is increased, and the heat exchange efficiency is improved. In addition, the flue gas can flow along the second flue gas channel 22, the first flue gas channel 21 or the spiral smoke exhaust channel when flowing, and can also flow in a collision manner among the three channels, so that the turbulence of the flue gas is further increased, and the heat exchange efficiency is improved.
Preferably, the ratio of the outer diameter of the turbulent flow part 2 to the inner diameter of the smoke tube 3 is 0.8-0.95.
In some preferred embodiments, the ratio of the diameter of the first flue gas channel 21 to the outer diameter of the spoiler 2 ranges from 0.4 to 0.6. That is to say, the strip wound into the turbulent flow part 2 has a certain width in the radial direction of the smoke tube 3 to ensure the heat exchange effect.
Preferably, the outer diameter of the turbulence portion 2 is twice the diameter of the first flue gas channel 21, which not only can increase the flow cross section area of the flue gas and ensure that the flue gas can smoothly flow, but also can ensure that the turbulence portion 2 has enough width in the radial direction of the flue pipe 3, thereby ensuring the flow time of the flue gas along the spiral structure in the flue pipe and improving the heat exchange effect.
In an embodiment of the present invention, as shown in fig. 3 and 4, the smoke disturbing device further includes a positioning portion 1, specifically, the positioning portion 1 is disposed at one end of the smoke tube 3, one end of the disturbing portion 2 is fixed on the positioning portion 1, the other end of the disturbing portion extends into the smoke tube 3, the disturbing portion 2 can be taken out by detaching the positioning portion 1, and the installation, detachment and cleaning of the disturbing portion 2 are facilitated. Preferably, as shown in fig. 1, the upper portion of the spoiler 2 has a reserved bend, and the bend is parallel to the center of the spiral line, so that the spoiler is easily welded and fixed with the positioning portion 1.
In some embodiments, as shown in fig. 3, the positioning portion 1 may be a strip-shaped or plate-shaped structure, the size of which is larger than the diameter of the smoke tube 3, and the positioning portion directly covers the end of the smoke tube 3 and contacts with the upper plane of the smoke tube 3 for fixing, when in use, the spoiler 2 falls into the smoke tube 3 under the action of gravity, and when in replacement, only the positioning portion 1 is required to be held to draw out the spoiler 2, so that the installation and the disassembly are convenient.
In other embodiments, as shown in fig. 5 and fig. 6, the positioning portion 1 is connected with the smoke tube 3 by screw threads, so as to facilitate installation and positioning and increase the firmness of connection, wherein fig. 5 shows an internal screw connection mode, and fig. 6 shows an external screw connection mode.
The pitch of vortex portion 2 is difficult too big or undersize, and too big will reduce the disturbance of flue gas, and undersize then can influence smoke exhaust effect. Preferably, the ratio of the pitch of the spoiler 2 to the outer diameter ranges from 0.3 to 0.6, and further preferably, the ratio of the pitch of the spoiler 2 to the outer diameter ranges from 0.4 or 0.5.
The embodiment of the utility model provides a fire tube boiler is still shown, including any one of the above-mentioned embodiment flue gas vortex device. Adopt the utility model discloses a fire tube boiler, during discharging fume, the flue gas trend is the heliciform, and the flue gas flow cross-sectional area is great, can reduce flue gas flow resistance, increases high temperature flue gas and erodees the tobacco pipe inner wall, prolongs heat exchange time, both keeps the clean thermal efficiency of increasing again of tobacco pipe inner wall.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A flue gas turbulence device is characterized in that: including setting up the vortex portion in the tobacco pipe, vortex portion coils for the strip the helical structure that the axis of tobacco pipe formed, and helical structure's inside form with the coaxial first flue gas passageway of tobacco pipe.
2. The flue gas turbulator device of claim 1, wherein:
a gap is formed between the turbulent flow part and the inner wall of the smoke pipe, and the gap is used as a second smoke channel.
3. The flue gas turbulator of any one of claims 1 or 2, wherein: the outer diameter of the turbulent flow part is twice of the diameter of the first smoke channel.
4. The flue gas turbulator of any one of claims 1 or 2, wherein: one end of the smoke tube is provided with a positioning part, and one end of the turbulence part is connected with the positioning part.
5. The flue gas turbulator device of claim 4, wherein:
the positioning part is covered at one end of the smoke tube; or
The positioning part is in threaded connection with one end of the smoke tube.
6. The flue gas turbulator device of claim 2, wherein:
the ratio range of the outer diameter of the turbulent flow part to the inner diameter of the smoke tube is 0.8-0.95.
7. A fire tube boiler characterized by: comprising a flue gas turbulator in accordance with any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920272896.7U CN209991475U (en) | 2019-03-05 | 2019-03-05 | Flue gas turbulence device and fire tube boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920272896.7U CN209991475U (en) | 2019-03-05 | 2019-03-05 | Flue gas turbulence device and fire tube boiler |
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| Publication Number | Publication Date |
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| CN209991475U true CN209991475U (en) | 2020-01-24 |
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| CN201920272896.7U Active CN209991475U (en) | 2019-03-05 | 2019-03-05 | Flue gas turbulence device and fire tube boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594665A (en) * | 2020-12-17 | 2021-04-02 | 上海康恒环境股份有限公司 | Flow disturbing device of waste heat boiler |
-
2019
- 2019-03-05 CN CN201920272896.7U patent/CN209991475U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594665A (en) * | 2020-12-17 | 2021-04-02 | 上海康恒环境股份有限公司 | Flow disturbing device of waste heat boiler |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200810 Address after: 241080 16 e - Xi Road, San Shan Economic Development Zone, Wuhu, Anhui Patentee after: Zhonglian Agricultural Machinery Co., Ltd Address before: 241080 Anhui province Wuhu City mountain Economic Development Zone E Xi Road No. 16 Patentee before: ANHUI GUWANG DRYING MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |