CN219381267U - Hot air heating system - Google Patents
Hot air heating system Download PDFInfo
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- CN219381267U CN219381267U CN202320651838.1U CN202320651838U CN219381267U CN 219381267 U CN219381267 U CN 219381267U CN 202320651838 U CN202320651838 U CN 202320651838U CN 219381267 U CN219381267 U CN 219381267U
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- box body
- hot air
- inner box
- bottom frame
- air
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Abstract
The utility model discloses a hot air heating system, which comprises an outer box body, an inner box body, a bottom frame, a flange heater, an air return pipe, a hot air pipe, a heat insulation sleeve and a centrifugal fan, wherein the inner box body is arranged on the bottom frame and forms a closed cavity with the bottom frame, the outer box body is fixed on the bottom frame and is arranged on the outer side of the inner box body, an air return channel is formed between the outer box body and the bottom frame, the air return channel is communicated with the inner part of the inner box body, the centrifugal fan is arranged outside the outer box body, the air return pipe is arranged in the inner box body, the outer ends of the air return channel extend out of the inner box body and the outer box body to be communicated with the air inlet end of the centrifugal fan, the flange heater is arranged in the outer box body, the outer ends of the flange heater are communicated with the air outlet end of the centrifugal fan, the hot air pipe is vertically arranged in the inner box body, the bottom end of the hot air pipe passes through the inner box body and the bottom frame to extend out of the bottom frame, the heat insulation sleeve is fixed on the inner box body, the inner end of the hot air pipe is communicated, and the outer end of the heat pipe is communicated with the inner end of the flange heater. The utility model reduces heat loss, effectively reduces the heating power of the oven, reduces energy consumption and reduces cost.
Description
Technical Field
The utility model relates to the technical field of heating systems of film stretching machines, in particular to a hot air heating system.
Background
The hot air heating system is an important component of the film stretching machine, and the temperature control of the hot air heating system plays a role in determining the film stretching forming effect. The existing hot air heating system comprises a box body, a bottom frame, an air inlet pipe, an air return pipe, an air duct and a fixing seat, wherein the bottom frame is fixed at the bottom of the box body, an air return channel is formed between the bottom frame and the box body, the air return channel is communicated with the inside of the box body, the fixing seat is installed in the box body, the air inlet pipe is fixed on the box body, the air outlet end of the air inlet pipe extends into the box body and is communicated with the fixing seat, the air duct is vertically fixed in the box body, the upper end of the air duct is communicated with the fixing seat, the lower end of the air duct passes through the bottom frame and extends out of the bottom frame, the air return pipe is fixed on the box body, the air inlet end of the air return pipe extends into the box body and is communicated with the inside of the box body, the heater is installed outside the box body, the air outlet end of the centrifugal fan is communicated with the air inlet pipe through a pipeline after the heater, and the air return pipe is communicated with the air return end of the centrifugal fan through the pipeline. Although the hot air heating system can meet the use requirement to a certain extent, the defects are that: the heater sets up in the box, and the intake pipe passes through hose connection with the heater, and the heat is lost outside the box easily, needs great power heater, has improved manufacturing cost.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a hot air heating system.
The technical scheme of the utility model is as follows:
the hot air heating system comprises an outer box body, an inner box body, a bottom frame, a flange heater, an air return pipe, a hot air pipe, a heat insulation sleeve and a centrifugal fan, wherein the inner box body is arranged on the bottom frame and is communicated with an air outlet end of the centrifugal fan, the outer box body is fixed on the bottom frame and is arranged on the outer side in the inner box body, an air return channel is formed between the outer box body and the bottom frame, the air return channel is communicated with the inner part of the inner box body, the centrifugal fan is arranged outside the outer box body, the air return pipe is arranged in the inner box body, the outer end of the air return pipe extends out of the inner box body and is communicated with an air inlet end of the centrifugal fan, the flange heater is arranged in the outer box body, the outer end of the flange heater is communicated with an air outlet end of the centrifugal fan, the hot air pipe is vertically arranged in the inner box body, the bottom end of the hot air pipe penetrates through the inner box body and the bottom frame and extends out of the bottom frame, the heat insulation sleeve is fixed on the inner box body, and the outer end of the flange heater is communicated with the outer end of the flange heater.
Preferably, the hot air heating system further comprises a pore plate and an annular groove frame, wherein the pore plate is arranged at the bottom of the bottom frame and positioned below the air return channel, the annular groove frame is arranged in the outer box and positioned above the air return channel, an air slot hole is formed in the inner side of the annular groove frame, and the air slot hole is communicated with the air return channel and the inner box.
Preferably, the bottom frame comprises a frame body and an upper partition plate, the frame body is installed at the bottoms of the inner box body and the outer box body, an installation opening is formed in the middle of the frame body, the upper partition plate is installed at the installation opening, a closed cavity is formed between the frame body, the upper partition plate and the inner box body, and the hot air pipe penetrates through the upper partition plate.
Preferably, the bottom frame further comprises a lower partition plate, the lower partition plate is installed at the installation opening and located below the upper partition plate, a hot air cavity is formed among the frame body, the upper partition plate and the lower partition plate, and a hot air outlet is formed in the lower partition plate.
Preferably, the bottom end of the hot air pipe passes through the upper partition plate from the center of the upper partition plate.
Preferably, the air return pipe is positioned at the inner top of the inner box body, and a plurality of branched pipes with downward openings are arranged at the inner end of the air return pipe.
Preferably, the top of the outer box body and the top of the inner box body are respectively provided with an observation opening.
Compared with the prior art, the utility model has the beneficial effects that: the flange heater is arranged in the outer box body and is communicated with the hot air pipe in the inner box body through the heat insulation sleeve, the air return pipe is arranged in the inner box body, and hot air is sent to the hot air pipe through the centrifugal fan, so that the path of the hot air reaching the hot air pipe is shortened, heat dissipation is reduced, and heat dissipation of the heater, the hot air pipe and the air return pipe outside the outer box body is avoided; meanwhile, part of heat dissipated in the outer box body can provide a certain heat preservation effect for the whole oven, so that the whole heat dissipation is reduced, the heating power of the oven is effectively reduced, the energy consumption is reduced, the cost is reduced, and the outside of the outer box body is only provided with a centrifugal fan, the pipeline connection is reduced, and the installation and the maintenance are more convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a hot air heating system according to the present utility model;
FIG. 2 is a schematic view of another overall structure of the hot air heating system of the present utility model;
FIG. 3 is a bottom view of the hot air heating system of the present utility model;
FIG. 4 is a schematic view showing the internal structure of the hot air heating system according to the present utility model;
FIG. 5 is a schematic view of the overall structure of the bottom frame of the present utility model;
FIG. 6 is an exploded view of the structure of the bottom frame of the present utility model;
FIG. 7 is another exploded view of the bottom frame of the present utility model;
the novel heat-insulating box comprises a 1-outer box body, a 2-inner box body, a 3-bottom frame, a 4-flange heater, a 5-muffler, a 6-hot air pipe, a 7-heat-insulating sleeve, an 8-centrifugal fan, a 9-pore plate, a 10-annular groove frame, an 11-muffler channel, a 12-air slot hole, a 31-box body, a 32-upper partition plate, a 33-mounting opening and a 34-lower partition plate.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order to illustrate the technical scheme of the utility model, the following description is made by specific examples.
Example 1
As shown in fig. 1 to 7, the hot air heating system of the present embodiment includes an outer box 1, an inner box 2, a bottom frame 3, a flange heater 4, an air return pipe 5, a hot air pipe 6, a heat insulation sleeve 7 and a centrifugal fan 8, wherein the inner box 2 is mounted on the bottom frame 3 and forms a closed cavity with the bottom frame 3, the outer box 1 is fixed on the bottom frame 1 and is arranged at the outer side in the inner box 2, an air return channel 11 is formed between the outer box 1 and the bottom frame 3, the air return channel 11 is communicated with the inner part of the inner box 2, and heat insulation boards are arranged in the outer box 1 and the inner box 2, so that the heat insulation efficiency is effectively improved; the centrifugal fan 8 is arranged outside the outer box body 1, the air return pipe 5 is arranged in the inner box body 2, the outer ends of the air return pipe 5 extend out of the inner box body 2 and the outer box body 1 to be communicated with the air inlet end of the centrifugal fan 8, the flange heater 4 is arranged in the outer box body 1, the outer ends of the flange heater 4 are communicated with the air outlet end of the centrifugal fan 8, the hot air pipe 6 is vertically arranged in the inner box body 2, the bottom ends of the hot air pipe 6 penetrate through the inner box body 2 and the bottom frame 3 to extend out of the bottom frame 3, the heat insulation sleeve 7 is fixed on the inner box body 2, the inner ends of the heat insulation sleeve 7 are communicated with the hot air pipe 6, and the outer ends of the heat insulation sleeve are communicated with the inner ends of the flange heater 4. During operation, the centrifugal fan 8 conveys cold air to the flange heater 4, the flange heater 4 heats the cold air into hot air, the hot air is conveyed to the hot air pipe 6 through the heat insulation sleeve 7, the hot air is conveyed to the film through the hot air pipe 6 to heat the film, the hot air heats the film into warm air, the warm air enters the inner box body 2 through the air return channel 11 after being subjected to bottom frame 3, and the warm air returns to the centrifugal fan 8 through the air return pipe 5, so that circulation is realized. The hot air heating system of the embodiment is characterized in that the flange heater is arranged in the outer box body and is communicated with the hot air pipe in the inner box body through the heat insulation sleeve, the air return pipe is arranged in the inner box body, hot air is sent to the hot air pipe through the centrifugal fan, so that the path of the hot air reaching the hot air pipe is shortened, heat loss is reduced, and the heat loss of the heater, the hot air pipe and the air return pipe is avoided outside the outer box body; meanwhile, part of heat dissipated in the outer box body can provide a certain heat preservation effect for the whole oven, so that the whole heat dissipation is reduced, the heating power of the oven is effectively reduced, the energy consumption is reduced, the cost is reduced, and the outside of the outer box body is only provided with a centrifugal fan, the pipeline connection is reduced, and the installation and the maintenance are more convenient.
In this embodiment, the hot air heating system further includes an orifice plate 9 and an annular groove frame 10, the orifice plate 9 is mounted at the bottom of the bottom frame 3 and is located below the air return channel 11, the annular groove frame 10 is disposed in the outer box 1 and is located above the air return channel 11, an air slot 12 is formed in the inner side of the annular groove frame 10, the air slot 13 is communicated with the air return channel 11 and the inner box 2, and an air path is formed by the orifice plate 9, the air return channel 11, the annular groove frame 10 and the air slot 12, so that warm air heated by the film enters the inner box 2 from the air path and is discharged by the air return pipe 5.
In this embodiment, the bottom frame 3 includes a frame 31 and an upper partition plate 32, the frame 31 is installed at the bottom of the inner case 2 and the outer case 1, an installation opening 33 is provided in the middle of the frame 31, the upper partition plate 32 is installed at the installation opening 31, a closed cavity is formed between the frame 31, the upper partition plate 32 and the inner case 2, and the hot air pipe 6 passes through the upper partition plate 32, so that hot air is directly sent from the hot air pipe 6 to the film, and the heating efficiency of the film is improved.
In this embodiment, as shown in fig. 7, the bottom frame 3 further includes a lower partition 34, the lower partition 34 is mounted at the mounting opening 33 and is located below the upper partition 32, a hot air cavity is formed between the frame 31, the upper partition 32 and the lower partition 34, and a hot air outlet 35 is formed on the lower partition 34, so that the hot air coming out from the hot air pipe 6 is uniformly distributed and then sent to the film by the hot air outlet 35, and the film is heated more uniformly.
In this embodiment, the bottom end of the hot air pipe 6 passes through the upper partition plate 32 from the center of the upper partition plate 32, so that hot air is conveniently and uniformly conveyed. The air return pipe 5 is positioned at the inner top of the inner box body 2, and a plurality of branched pipes with downward openings are arranged at the inner end of the air return pipe, so that the heating air in the inner box body 2 can return to the air return pipe 5 conveniently. The top of outer box 1 with interior box 2 all is equipped with the viewing aperture, conveniently observes the condition in the whole box, realizes real-time supervision.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. A hot air heating system, characterized by: the heat-insulating box comprises an outer box body, an inner box body, a bottom frame, a flange heater, an air return pipe, a hot air pipe, a heat-insulating sleeve and a centrifugal fan, wherein the inner box body is arranged on the bottom frame and is communicated with an air outlet end of the centrifugal fan, the outer box body is fixed on the bottom frame and is arranged on the outer side in the inner box body, an air return channel is formed between the outer box body and the bottom frame, the air return channel is communicated with the inner part of the inner box body, the centrifugal fan is arranged outside the outer box body, the air return pipe is arranged in the inner box body, the outer ends of the air return pipe extend out of the inner box body and the outer box body and are communicated with the air inlet end of the centrifugal fan, the flange heater is arranged in the outer box body, the outer end of the flange heater is communicated with the air outlet end of the centrifugal fan, the hot air pipe is vertically arranged in the inner box body, the bottom end of the hot air pipe penetrates through the inner box body and the bottom frame and extends out of the bottom frame, the heat-insulating sleeve is fixed on the inner box body, the inner end of the heat-insulating sleeve is communicated with the inner box body, and the outer end of the flange heater is communicated with the air inlet end of the flange heater.
2. The hot air heating system of claim 1, wherein: the hot air heating system further comprises an orifice plate and an annular groove frame, wherein the orifice plate is arranged at the bottom of the bottom frame and located below the air return channel, the annular groove frame is arranged in the outer box body and located above the air return channel, an air slot hole is formed in the inner side of the annular groove frame, and the air slot hole is communicated with the air return channel and the inner box body.
3. The hot air heating system according to claim 1 or 2, characterized in that: the bottom frame comprises a frame body and an upper partition plate, the frame body is installed at the bottoms of the inner box body and the outer box body, an installation opening is formed in the middle of the frame body, the upper partition plate is installed at the installation opening, a closed cavity is formed between the frame body, the upper partition plate and the inner box body, and the hot air pipe penetrates through the upper partition plate.
4. A hot air heating system according to claim 3, characterized in that: the bottom frame also comprises a lower partition plate, the lower partition plate is arranged at the mounting opening and positioned below the upper partition plate, a hot air cavity is formed between the frame body, the upper partition plate and the lower partition plate, and a hot air outlet is formed in the lower partition plate.
5. A hot air heating system according to claim 3, characterized in that: the bottom end of the hot air pipe passes through the upper partition plate from the right center of the upper partition plate.
6. The hot air heating system according to claim 1 or 2, characterized in that: the air return pipe is positioned at the inner top of the inner box body, and a plurality of branched pipes with downward openings are arranged at the inner end of the air return pipe.
7. The hot air heating system according to claim 1 or 2, characterized in that: the top of outer box with the inner box all is equipped with the viewing aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320651838.1U CN219381267U (en) | 2023-03-28 | 2023-03-28 | Hot air heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320651838.1U CN219381267U (en) | 2023-03-28 | 2023-03-28 | Hot air heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219381267U true CN219381267U (en) | 2023-07-21 |
Family
ID=87164554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320651838.1U Active CN219381267U (en) | 2023-03-28 | 2023-03-28 | Hot air heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219381267U (en) |
-
2023
- 2023-03-28 CN CN202320651838.1U patent/CN219381267U/en active Active
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