CN215570551U - High-efficient heat dissipation pipe of discharging fume - Google Patents
High-efficient heat dissipation pipe of discharging fume Download PDFInfo
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- CN215570551U CN215570551U CN202122128782.5U CN202122128782U CN215570551U CN 215570551 U CN215570551 U CN 215570551U CN 202122128782 U CN202122128782 U CN 202122128782U CN 215570551 U CN215570551 U CN 215570551U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a high-efficiency heat dissipation smoke exhaust pipe which comprises a smoke exhaust pipe body, wherein a smoke exhaust cavity is arranged inside the smoke exhaust pipe body, an inner heat exchange band for improving the heat exchange area between the inner wall of the smoke exhaust cavity and high-temperature smoke is fixedly distributed on the inner wall of the smoke exhaust cavity, an outer heat dissipation band for improving the heat dissipation area of the smoke exhaust pipe body is distributed on the outer surface of the smoke exhaust pipe body, and a first connector and a second connector are respectively arranged on the upper end and the lower end of the smoke exhaust pipe body.
Description
Technical Field
The utility model belongs to the technical field of smoke exhaust pipes, and particularly relates to a high-efficiency heat dissipation smoke exhaust pipe.
Background
During heating in rural families in winter, wall-mounted furnaces, biomass furnaces and common heating furnaces are mostly adopted for heating, and the furnaces are communicated with a smoke exhaust pipeline, and waste gas (containing carbon monoxide and nitrogen oxides) generated by combustion during the operation of equipment is collected and discharged outdoors through the smoke exhaust pipeline; the fume extraction duct is generally formed by connecting in series a plurality of fume extraction ducts, which are produced and manufactured by manufacturers according to the corresponding safety standards and which need to be correctly assembled at the user's home according to the corresponding specifications.
The existing smoke exhaust pipes are designed according to standards and have fixed lengths, and when the smoke exhaust pipes are installed, a proper number of smoke exhaust pipes are selected to form a smoke exhaust pipeline with a proper length according to the actual condition of a user home; however, the existing smoke exhaust pipe is in a straight cylinder shape, and when smoke is exhausted, a large amount of heat in smoke is directly exhausted outdoors along with the smoke, so that a large amount of waste of heat energy is caused.
In order to solve the technical problem, a smoke exhaust pipe appears on the market, and the smoke exhaust pipe is disclosed as follows: CN200920115374.2 discloses a tobacco pipe for vacuum hot water boiler, including the body, the body inner wall is equipped with the screw thread, and the body outer wall has put the fin, and the fin is the ribbon perpendicular to pipe shaft outer wall of spiral, and this type of current pipe of discharging fume can improve heat radiating area, and then makes the intraductal heat of discharging fume further dispel the heat.
But this kind of current tub overall structure of discharging fume is complicated, and its inner wall mounting has the internal thread, causes whole equipment installation inconvenient, and manufacturing cost is high to fin on its outer wall is the heliciform and arranges, causes the outer wall sharp, when installing and using, causes fish tail user's hand easily, causes danger, and the fin makes the axis of perpendicular to body, and its radiating effect is poor, and then causes the result of use poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the efficient heat dissipation smoke exhaust pipe which is simple in structure, convenient to use, convenient to assemble and install, capable of fully and efficiently dissipating heat in the smoke exhaust pipe and capable of improving the heat dissipation effect.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a high-efficient heat dissipation pipe of discharging fume, is provided with the chamber of discharging fume including the body of discharging fume, the fixed inside of the body of discharging fume of having laid on the inner wall in chamber of discharging fume is used for improving the inner wall in chamber of discharging fume and high temperature flue gas heat transfer area's interior heat transfer area, has laid the outer heat transfer area that is used for improving the body heat transfer area of discharging fume on the surface of the body of discharging fume, is provided with first joint and second joint on the upper and lower both ends of the body of discharging fume respectively.
The following is a further optimization of the above technical solution of the present invention:
the number of the inner heat exchange belts is at least one, the inner heat exchange belts are annularly distributed along the inner surface of the smoke exhaust cavity, and the inner heat exchange belts are fixedly connected with the inner surface of the smoke exhaust cavity.
Further optimization: the inner heat exchange belt is provided with a plurality of heat exchange bulges which are annularly arranged along the axis of the smoke exhaust pipe body, the heat exchange bulges are arranged in parallel with the axis of the smoke exhaust pipe body, and the heat exchange bulges are arranged vertically with the inner surface of the smoke exhaust cavity.
Further optimization: a first smoke conveying channel is arranged between two adjacent heat exchange bulges on the inner heat exchange belt and communicated with the smoke exhaust cavity.
Further optimization: the outer heat dissipation belt is at least one, is arranged along the outer surface of the smoke exhaust pipe body in an annular mode, and is fixedly connected with the outer surface of the smoke exhaust pipe body.
Further optimization: the outer heat dissipation belt is provided with a plurality of heat dissipation bulges which are annularly arranged along the axis of the smoke exhaust pipe body, the heat dissipation bulges are arranged in parallel with the axis of the smoke exhaust pipe body, and the heat dissipation bulges are arranged perpendicularly to the outer surface of the smoke exhaust pipe body.
Further optimization: a first heat dissipation cavity is arranged between two adjacent heat dissipation bulges on the outer heat dissipation strip and communicated with the outside atmosphere.
Further optimization: the two side edges of the heat exchange bulge and the heat dissipation bulge are both corrugated.
Further optimization: the first joint and the second joint are respectively and integrally connected with the upper end and the lower end of the corresponding smoke exhaust pipe body, and the diameter of the outer surface of the first joint is matched with the diameter of the inner surface of the second joint.
Further optimization: a first annular bulge is arranged on the smoke exhaust pipe body at a position close to the first joint, and a second annular bulge is arranged on the smoke exhaust pipe body at a position close to the second joint.
By adopting the technical scheme, when the heating furnace is used, the plurality of smoke exhaust pipe bodies are selected according to construction requirements, then the smoke exhaust pipe bodies are assembled into the smoke exhaust pipeline in a mode that the first connector and the second connector are spliced, the smoke inlet end of the smoke exhaust pipeline is communicated with the smoke outlet of the heating furnace, and the smoke outlet end of the smoke exhaust pipeline is communicated with external atmosphere or smoke treatment equipment.
The high temperature flue gas that heating stove discharged this moment can get into the intracavity of discharging fume of body of discharging fume, and when the high temperature flue gas flowed in the intracavity of discharging fume, the high temperature flue gas fully contacted with interior heat transfer area, and the heat in the high temperature flue gas can transmit to interior heat transfer area this moment, and then the heat transmission on the interior heat transfer area of interior heat transfer area is to the body of discharging fume.
The heat on the body of discharging fume can transmit to on the heat dissipation band outward, the heat dissipation band contacts with outside atmosphere outward, realizes then dispelling the heat on the body of discharging fume to outside in the atmosphere, realizes improving the heating effect.
By adopting the technical scheme, the utility model has the advantages of ingenious design and reasonable structure, can absorb heat in high-temperature flue gas through the inner heat exchange belt and then radiate the heat through the outer heat radiation belt, improves the heat radiation effect and the heating effect, further recycles the heat in the high-temperature flue gas, further reduces the consumption of fuel, greatly reduces the pollution to the environment during ventilation, and realizes energy conservation and environmental protection.
The novel LED lamp holder is simple in integral structure, convenient to produce and process, convenient to assemble and install, capable of improving using effect and capable of greatly reducing using cost.
The utility model is further illustrated with reference to the following figures and examples.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of the interior of the smoke exhaust pipe body in embodiment 1 of the present invention;
FIG. 3 is a plan view of the overall structure in example 1 of the present invention;
FIG. 4 is a schematic structural view of an external heat dissipating tape in embodiment 1 of the present invention;
fig. 5 is a front view of the exhaust pipe body 1 according to embodiment 2 of the present invention;
fig. 6 is a schematic structural view of a heat dissipation protrusion in embodiment 3 of the present invention.
In the figure: 1-a smoke exhaust pipe body; 2-a smoke exhaust cavity; 3-internal heat exchange zone; 31-heat exchange protrusions; 32-a first smoke delivery channel; 33-a second smoke delivery channel; 4-zone of exothermal activity; 41-heat dissipation protrusions; 42-a first heat dissipation cavity; 43-a second heat dissipation cavity; 5-a first joint; 51-a first annular projection; 6-a second linker; 61-second annular projection.
Detailed Description
Example (b): referring to fig. 1-4, an efficient heat dissipation smoke exhaust pipe comprises a smoke exhaust pipe body 1, a smoke exhaust cavity 2 is arranged inside the smoke exhaust pipe body 1, an inner heat exchange zone 3 for increasing the heat exchange area between the inner wall of the smoke exhaust cavity 2 and high-temperature smoke is fixedly arranged on the inner wall of the smoke exhaust cavity 2, an outer heat dissipation zone 4 for increasing the heat dissipation area of the smoke exhaust pipe body 1 is arranged on the outer surface of the smoke exhaust pipe body 1, and a first joint 5 and a second joint 6 are respectively arranged at the upper end and the lower end of the smoke exhaust pipe body 1.
The first joint 5 and the second joint 6 are respectively and integrally connected with the upper end and the lower end of the corresponding smoke exhaust pipe body 1, and the diameter of the outer surface of the first joint 5 is matched with the diameter of the inner surface of the second joint 6.
Design like this, when the pipeline is discharged fume in needs equipment, can select a plurality of body 1 of discharging fume, then connect the grafting of 6 with the second through first joint 5 with two adjacent body 1 of discharging fume and can realize the intercommunication, convenient equipment and installation improve the result of use.
A first annular bulge 51 is arranged on the smoke exhaust pipe body 1 at a position close to the first joint 5, and the first annular bulge 51 is annularly arranged along the outer surface of the smoke exhaust pipe body 1.
A second annular bulge 61 is arranged on the smoke exhaust pipe body 1 at a position close to the second joint 6, and the second annular bulge 61 is annularly arranged along the outer surface of the smoke exhaust pipe body 1.
By the design, when the first joint 5 is inserted into the second joint 6, the second joint 6 can be abutted against the first annular protrusion 51, and then the first annular protrusion 51 can be used for limiting the depth of the first joint 5 inserted into the second joint 6, so that the first joint 5 and the second joint 6 are positioned, and the use is convenient.
The distance between the outer surface of the outer heat dissipation belt 4 and the outer surface of the smoke exhaust pipe body 1 is larger than the distance between the inner heat exchange belt 3 and the inner wall of the smoke exhaust cavity 2.
Design like this, heat transfer area between the internal surface that chamber 2 was discharged fume and the high temperature flue gas can be increased in the accessible 3 heat transfer areas, improves and improves the heat transfer effect to interior heat transfer area 3 can not influence the defeated cigarette effect of chamber 2 of discharging fume, improves the result of use.
The number of the inner heat exchange belts 3 is at least one, the inner heat exchange belts 3 are annularly arranged along the inner surface of the smoke exhaust cavity 2, and the inner heat exchange belts 3 are fixedly connected with the inner surface of the smoke exhaust cavity 2.
In this embodiment, the inner heat exchange belt 3 and the inner surface of the smoke exhaust cavity 2 are fixedly connected by welding.
The inner heat exchange belt 3 is made of a metal sheet through repeated reciprocating bending, and a plurality of heat exchange protrusions 31 which are annularly distributed along the axis of the smoke exhaust pipe body 1 are arranged on the inner heat exchange belt 3. A spacing distance is arranged between two adjacent heat exchange protrusions 31.
The cross section of the heat exchange bulge 31 is shaped like a Chinese character 'ji'.
The heat exchange bulges 31 are arranged in parallel with the axis of the smoke exhaust pipe body 1, and the heat exchange bulges 31 are arranged vertically with the inner surface of the smoke exhaust cavity 2.
By the design, the heat exchange area between the inner surface of the smoke exhaust cavity 2 and the high-temperature smoke can be increased through the heat exchange protrusions 31.
After the inner heat exchange belt 3 is fixedly connected with the inner surface of the smoke exhaust cavity 2, a first smoke conveying channel 32 is arranged between two adjacent heat exchange bulges 31 on the inner heat exchange belt 3, and the first smoke conveying channel 32 is communicated with the smoke exhaust cavity 2.
A second smoke conveying channel 33 is arranged between the heat exchange bulge 31 of the inner heat exchange belt 3 and the inner surface of the smoke exhaust cavity 2, and the upper end and the lower end of the second smoke conveying channel 33 are respectively communicated with the smoke exhaust cavity 2.
Design like this, when carrying high temperature flue gas in exhaust cavity 2, high temperature flue gas can flow through the first surface of defeated cigarette passageway 32, defeated cigarette passageway 33 of second and heat transfer arch 31, and heat transfer arch 31 contacts with high temperature flue gas this moment, can increase the area of contact between the internal surface of exhaust cavity 2 and the high temperature flue gas, and then realizes the heat transfer area between the internal surface of increase exhaust cavity 2 and the high temperature flue gas.
When the heat exchange protrusions 31 contact with the high-temperature flue gas, the heat exchange protrusions 31 exchange heat with the high-temperature flue gas, and at the moment, heat in the high-temperature flue gas can be transferred to the heat exchange protrusions 31, so that the heat can be transferred to the inner heat exchange belt 3.
Interior heat transfer area 3 carries out the heat transfer with body 1 of discharging fume, realizes then with the heat transfer on the interior heat transfer area 3 to body 1 of discharging fume on.
Therefore, the heat exchange area between the inner surface of the smoke exhaust cavity 2 and the high-temperature smoke can be increased through the inner heat exchange belt 3, heat in the high-temperature smoke can be transmitted to the smoke exhaust pipe body 1 through the inner heat exchange belt 3, and the smoke exhaust pipe is convenient to use.
In this embodiment, the smoke exhaust pipe body 1 and the inner heat exchange belt 3 are made of materials such as aluminum, copper, stainless steel, etc.
Design like this, can improve thermal transfer rate, realize then further utilizing the heat in the high temperature flue gas in the chamber 2 of discharging fume, improve the result of use.
The number of the outer heat dissipation bands 4 is at least one, the outer heat dissipation bands 4 are annularly arranged along the outer surface of the smoke exhaust pipe body 1, and the outer heat dissipation bands 4 are fixedly connected with the outer surface of the smoke exhaust pipe body 1.
In this embodiment, the outer heat dissipation band 4 is fixedly connected to the outer surface of the smoke exhaust pipe body 1 by welding.
The outer heat dissipation band 4 is made of a metal sheet through repeated reciprocating bending, a plurality of heat dissipation protrusions 41 are arranged on the outer heat dissipation band 4 and annularly distributed along the axis of the smoke exhaust pipe body 1, and a spacing distance is arranged between every two adjacent heat exchange protrusions 31.
The heat dissipating protrusion 41 has a cross-sectional shape of a zigzag shape.
The heat dissipation protrusions 41 are arranged in parallel with the axis of the smoke exhaust pipe body 1, and the heat dissipation protrusions 41 are arranged perpendicular to the outer surface of the smoke exhaust pipe body 1.
By the design, the heat dissipation area between the outer surface of the smoke exhaust pipe body 1 and the outside air can be increased through the heat dissipation protrusions 41, and the heat dissipation effect is further improved.
After the outer heat dissipation band 4 is fixedly connected with the outer surface of the smoke exhaust pipe body 1, a first heat dissipation cavity 42 is formed between two adjacent heat dissipation protrusions 41 on the outer heat dissipation band 4, and the first heat dissipation cavity 42 is communicated with the outside atmosphere.
A second heat dissipation cavity 43 is arranged between the heat dissipation protrusion 41 of the outer heat dissipation band 4 and the outer surface of the smoke exhaust pipe body 1, and the upper end and the lower end of the second heat dissipation cavity 43 are respectively communicated with the external atmosphere.
By the design, the heat on the smoke exhaust pipe body 1 can be transferred to the outer heat dissipation belt 4, the heat dissipation area of the outer heat dissipation belt 4 can be increased through the heat dissipation protrusions 41, and the heat dissipation effect is further improved.
When the external air flows to the first heat dissipation cavity 42, the heat on the outer heat dissipation band 4 can be transferred to the external air, so as to further heat the external air, thereby improving the heating effect.
In this embodiment, the outer heat dissipation band 4 is made of aluminum, copper, stainless steel, or the like.
Design like this, can improve thermal transfer rate, realize then advancing a portion of heat dissipation to the heat in the high temperature flue gas in the exhaust cavity 2, improve result of use and heating effect.
When the smoke exhaust pipe is used, a plurality of smoke exhaust pipe bodies 1 are selected according to construction requirements, then the smoke exhaust pipe bodies 1 are assembled into a smoke exhaust pipeline in a mode that a first connector 5 and a second connector 6 are connected in an inserting mode, the smoke inlet end of the smoke exhaust pipeline is communicated with a smoke exhaust port of a heating stove, and the smoke outlet end of the smoke exhaust pipeline is communicated with external atmosphere or smoke processing equipment.
At this moment, high-temperature flue gas exhausted by the heating furnace can enter the smoke exhaust cavity 2 of the smoke exhaust pipe body 1, when the high-temperature flue gas flows in the smoke exhaust cavity 2, the high-temperature flue gas is in full contact with the inner heat exchange belt 3, heat in the high-temperature flue gas can be transferred to the inner heat exchange belt 3 at this moment, and then the heat in the inner heat exchange belt 3 is transferred to the smoke exhaust pipe body 1.
The heat on the smoke exhaust pipe body 1 can be transferred to the outer heat dissipation belt 4, the outer heat dissipation belt 4 is in contact with the outside atmosphere, then the heat on the smoke exhaust pipe body 1 is dissipated to the outside atmosphere, and the heating effect is improved.
In embodiment 2, in this embodiment, the structure of the exhaust pipe body 1 shown in fig. 5 may also be adopted, a plurality of outer heat dissipation bands 4 are arranged on the outer surface of the exhaust pipe body 1, and the plurality of outer heat dissipation bands 4 are sequentially arranged at intervals along the axial direction of the exhaust pipe body 1.
The outer heat dissipation bands 4 are fixedly connected with the outer surface of the smoke exhaust pipe body 1 respectively.
A plurality of inner heat exchange belts 3 (not shown in fig. 5) are arranged in the smoke exhaust cavity 2 in the smoke exhaust pipe body 1, and the inner heat exchange belts 3 are sequentially arranged at intervals along the axial direction of the smoke exhaust pipe body 1.
The inner heat exchange belt 3 is fixedly connected with the inner surface of the smoke exhaust pipe body 1 respectively.
Embodiment 3, in this embodiment, the heat exchanging protrusions 31 on the inner heat exchanging belt 3 and the heat dissipating protrusions 41 on the outer heat dissipating belt 4 may also adopt the structure shown in fig. 6.
The structure shown in fig. 6 is a heat dissipating protrusion 41, and the overall structure of the heat exchanging protrusion 31 is the same as that of the heat dissipating protrusion 41 shown in fig. 6.
The two side edges of the heat dissipation protrusion 41 are corrugated.
Design like this, the both sides limit design on the protruding 41 that will dispel the heat is the corrugate, can provide the disturbance effect of air, and the protruding 41 that dispels the heat fully contacts with outside atmosphere during, and then improves the radiating effect, improves the heating effect.
When high-temperature flue gas in the smoke exhaust cavity 2 flows through the two sides of the heat exchange bulges 31, the heat exchange effect can be improved through the corrugated side edges on the two sides of the heat exchange bulges 31, and the use effect is improved.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims.
Claims (10)
1. The utility model provides a high-efficient heat dissipation pipe of discharging fume, is provided with smoke exhaust cavity (2), its characterized in that including body (1) of discharging fume, the inside of body (1) of discharging fume: the inner wall of the smoke exhaust cavity (2) is fixedly provided with an inner heat exchange band (3) used for improving the heat exchange area between the inner wall of the smoke exhaust cavity (2) and high-temperature smoke, an outer heat exchange band (4) used for improving the heat exchange area of the smoke exhaust tube body (1) is arranged on the outer surface of the smoke exhaust tube body (1), and the upper end and the lower end of the smoke exhaust tube body (1) are respectively provided with a first joint (5) and a second joint (6).
2. The efficient heat dissipation smoke exhaust pipe according to claim 1, wherein: the number of the inner heat exchange belts (3) is at least one, the inner heat exchange belts (3) are annularly distributed along the inner surface of the smoke exhaust cavity (2), and the inner heat exchange belts (3) are fixedly connected with the inner surface of the smoke exhaust cavity (2).
3. The efficient heat dissipation smoke exhaust pipe according to claim 2, wherein: the inner heat exchange belt (3) is provided with a plurality of heat exchange bulges (31) which are annularly arranged along the axis of the smoke exhaust pipe body (1), the heat exchange bulges (31) and the axis of the smoke exhaust pipe body (1) are arranged in parallel, and the heat exchange bulges (31) and the inner surface of the smoke exhaust cavity (2) are vertically arranged.
4. The efficient heat dissipation smoke exhaust pipe according to claim 3, wherein: a first smoke conveying channel (32) is arranged between two adjacent heat exchange bulges (31) on the inner heat exchange belt (3), and the first smoke conveying channel (32) is communicated with the smoke discharging cavity (2).
5. The efficient heat dissipation smoke exhaust pipe according to claim 4, wherein: the number of the outer heat dissipation bands (4) is at least one, the outer heat dissipation bands (4) are annularly arranged along the outer surface of the smoke exhaust pipe body (1), and the outer heat dissipation bands (4) are fixedly connected with the outer surface of the smoke exhaust pipe body (1).
6. The efficient heat dissipation smoke exhaust pipe according to claim 5, wherein: the outer heat dissipation belt (4) is provided with a plurality of heat dissipation bulges (41) which are annularly arranged along the axis of the smoke exhaust pipe body (1), the heat dissipation bulges (41) are arranged in parallel with the axis of the smoke exhaust pipe body (1), and the heat dissipation bulges (41) are vertically arranged with the outer surface of the smoke exhaust pipe body (1).
7. The efficient heat dissipation smoke exhaust pipe according to claim 6, wherein: a first heat dissipation cavity (42) is formed between two adjacent heat dissipation protrusions (41) on the outer heat dissipation band (4), and the first heat dissipation cavity (42) is communicated with the outside atmosphere.
8. The efficient heat dissipation smoke exhaust pipe according to claim 7, wherein: two side edges of the heat exchange bulge (31) and the heat dissipation bulge (41) are corrugated.
9. The efficient heat dissipation smoke exhaust pipe according to claim 8, wherein: the first joint (5) and the second joint (6) are respectively and integrally connected with the upper end and the lower end of the corresponding smoke exhaust pipe body (1), and the diameter of the outer surface of the first joint (5) is matched with the diameter of the inner surface of the second joint (6).
10. The efficient heat dissipation smoke exhaust pipe according to claim 9, wherein: a first annular bulge (51) is arranged on the position, close to the first joint (5), of the smoke exhaust pipe body (1), and a second annular bulge (61) is arranged on the position, close to the second joint (6), of the smoke exhaust pipe body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122128782.5U CN215570551U (en) | 2021-09-06 | 2021-09-06 | High-efficient heat dissipation pipe of discharging fume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122128782.5U CN215570551U (en) | 2021-09-06 | 2021-09-06 | High-efficient heat dissipation pipe of discharging fume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215570551U true CN215570551U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122128782.5U Active CN215570551U (en) | 2021-09-06 | 2021-09-06 | High-efficient heat dissipation pipe of discharging fume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215570551U (en) |
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2021
- 2021-09-06 CN CN202122128782.5U patent/CN215570551U/en active Active
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