CN219756915U - Heated air circulation oven - Google Patents
Heated air circulation oven Download PDFInfo
- Publication number
- CN219756915U CN219756915U CN202321212635.9U CN202321212635U CN219756915U CN 219756915 U CN219756915 U CN 219756915U CN 202321212635 U CN202321212635 U CN 202321212635U CN 219756915 U CN219756915 U CN 219756915U
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- air
- box
- pipe
- oven body
- exhaust pipe
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- 238000009833 condensation Methods 0.000 claims abstract description 44
- 230000005494 condensation Effects 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000007791 dehumidification Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002688 persistence Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model belongs to the technical field of ovens, and particularly relates to a hot air circulation oven which comprises an oven body, a condensation dehumidifying box, a fan and a heat exchanger, wherein a heating piece for heating air is arranged in the oven body, an air inlet and an air outlet are arranged on the condensation dehumidifying box, the interior of the oven body is communicated with the air inlet through an exhaust pipe, the air outlet is communicated with the interior of the oven body through a return pipe, the fan is used for driving air to circulate along the space between the oven body and the condensation dehumidifying box, the heat exchanger is arranged between the exhaust pipe and the return pipe, and heat in the exhaust pipe is transferred to the return pipe through the heat exchanger.
Description
Technical Field
The utility model belongs to the technical field of ovens, and particularly relates to a hot air circulation oven.
Background
The hot air circulation oven is an oven provided with a heating pipe and a circulating fan, the air source is used for sending hot air into the oven through a heater by a circulating air supply motor, the hot air circulates in the oven, and materials in the oven are dried. And along with the stoving process goes on, the material is heated, and the moisture that it contained is evaporated and is taken in hot-blast, along with the increase of hot-blast vapor content, the hot-blast moisture of oven internal circulation increases, influences the effect of stoving.
In order to guarantee the drying efficiency of the hot air circulation drying oven, a dehumidifying mechanism is arranged on some drying ovens at present to dehumidify circulating hot air, so that the drying effect of materials is guaranteed. At present, two types of dehumidification means are generally arranged in the hot air circulation oven, one type is that a moisture absorption unit, such as a desiccant, is arranged on an air duct to absorb water vapor in hot air, such as the hot air circulation oven provided by Chinese patent No. CN 201921041095.6; the other is that a condensing unit or a heat exchanger is arranged on the air duct, and the hot air is cooled by the condensing unit or the heat exchanger, so that water vapor in the hot air is condensed into water, and the hot air circulating in the oven is dehumidified, such as a hot air circulating oven provided by Chinese patent No. CN 202122460055.9. The former mode that dehumidifies through the moisture absorption unit absorption vapor, it is little to hot-blast heat loss, but dehumidification efficiency is slower to dehumidification ability is limited, needs the periodic replacement moisture absorption unit, and the latter mode that dehumidifies through the condensation is higher for the former, and dehumidification ability persistence is better, but dehumidification process can cool off hot-blast, is big to hot-blast heat loss.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a hot air circulation oven which can ensure the dehumidification efficiency and reduce the air heat loss.
The utility model relates to a drying oven, which comprises a drying oven body, a condensation dehumidifying box, a fan and a heat exchanger, wherein a heating piece for heating air is arranged in the drying oven body, an air inlet and an air outlet are arranged on the condensation dehumidifying box, the interior of the drying oven body is communicated with the air inlet through an exhaust pipe, the air outlet is communicated with the interior of the drying oven body through a return air pipe, the fan is used for driving air to circularly flow along the space between the drying oven body and the condensation dehumidifying box, the heat exchanger is arranged between the exhaust pipe and the return air pipe, and heat in the exhaust pipe is transferred to the return air pipe through the heat exchanger.
Still further, be provided with first heat transfer passageway and second heat transfer passageway on the heat exchanger, first heat transfer passageway and exhaust pipe intercommunication, the inside air of oven body flows into the air intake after the exhaust pipe passes through first heat transfer passageway, second heat transfer passageway and return air pipe intercommunication, and the inside air of condensation dehumidification box flows into the oven body after the return air pipe passes through second heat transfer passageway.
Still further, the inside baffle that is provided with of oven body, the baffle is used for separating the inside region of intercommunication exhaust pipe of oven body and the region of intercommunication return air pipe.
Still further, the oven body includes outer box and inside the inner box that is used for placing the material, the inner box sets up in the outer box and with be formed with the cavity between the outer box, and set up the vent of connecting cavity and inner box inside on the inner box, exhaust pipe and return air pipe all communicate with the cavity, the baffle sets up in the cavity.
Further, the cavity is positioned at the side surface and the top of the inner box.
Still further, condensation dehumidification box includes box body and the heat absorption piece of setting in the box body, air intake and air outlet set up on the box body.
Furthermore, the heat absorbing member is a condensing pipe, and a low-temperature medium flows in the condensing pipe.
Still further, still be provided with the filter in the box body, the filter sets up between heat absorbing member and air intake.
Still further still include the air-supply line, the air-supply line communicates with return air pipe to be located between condensation dehumidification box and the heat exchanger.
Further, an air valve is arranged on the air inlet pipe.
The utility model has the beneficial effects that the air in the oven body enters the condensation dehumidifying box through the exhaust pipe for condensation and dehumidification, the air after condensation and dehumidification flows back into the oven body through the return air pipe for circulation, and in the process, the heat which is mixed with the air before the air in the exhaust pipe enters the condensation dehumidifying box is transferred to the exhaust pipe through the heat exchanger, the air which is dehumidified by the condensation dehumidifying box in the exhaust pipe is heated, and the dehumidified air flows back into the oven body after being heated.
Adopt the mode of condensation to dehumidify the air of circulation, dehumidification efficiency is higher, and dehumidification ability persistence is better to can be with the heat transfer in the air before the condensation dehumidification to the air after the dehumidification in, heat it, reduce the thermal loss of air when guaranteeing dehumidification efficiency. And because most of heat is transferred out before the air enters the condensation dehumidifying box, the working requirement and the power consumption of the condensation dehumidifying box can be reduced.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure, 1-oven body; 11-an outer box; 12-an inner box; 121-a vent; 13-a cavity; 14-heating element; 15-a separator; 2-a condensation dehumidification box; 21-a box body; 22-a heat absorbing member; a 23-filter; 3-a fan; 4-a heat exchanger; 5-an exhaust pipe; 6-an air return pipe; 7-an air inlet pipe; 71-damper.
Detailed Description
As shown in fig. 1, the utility model comprises an oven body 1, a condensation dehumidifying box 2, a fan 3 and a heat exchanger 4, wherein a heating element 14 is arranged in the oven body 1, the heating element 14 is used for heating air in the oven body 1, and the temperature of internal circulating hot air is ensured to be in a required range. The air inlet and the air outlet are formed in the condensation dehumidifying box 2, the inside of the oven body 1 is communicated with the air inlet through the exhaust pipe 5, the air outlet is communicated with the inside of the oven body 1 through the return air pipe 6, the fan 3 is used for driving air to circulate between the oven body 1 and the condensation dehumidifying box 2, and the air dehumidifying box is characterized in that under the work of the fan 3, the air inside the oven body 1 enters the condensation dehumidifying box 2 through the exhaust pipe 5 along the air inlet for condensation dehumidifying, and the air after condensation dehumidifying flows back to the inside of the oven body 1 through the air outlet along the return air pipe 6, so that circulation is performed. The heat exchanger 4 is arranged between the exhaust pipe 5 and the return air pipe 6 and is connected with the exhaust pipe 5 and the return air pipe 6, the heat exchanger 4 is positioned between the inside of the oven body 1 and the air inlet on the exhaust pipe 5, the heat exchanger 4 is positioned between the air outlet and the inside of the oven body 1 on the return air pipe 6, and heat in the exhaust pipe 5 is transferred to the return air pipe 6 through the heat exchanger 4 to heat air flowing back to the inside of the oven body 1 along the return air pipe 6. In the utility model, the fan 3 is specifically arranged on the return air pipe 6 and is positioned between the heat exchanger 4 and the oven body 1.
Referring to fig. 1, air in the oven body 1 enters the condensation dehumidifying box 2 through the exhaust pipe 5 to be condensed and dehumidified, the condensed and dehumidified air flows back into the oven body 1 through the return air pipe 6 to circulate, and in the process, before the air in the exhaust pipe 5 enters the condensation dehumidifying box 2, the heat which is mixed with the air is transferred to the exhaust pipe 5 through the heat exchanger 4, the air dehumidified by the condensation dehumidifying box 2 in the exhaust pipe 5 is heated, and the dehumidified air flows back into the oven body 1 after being heated. According to the hot air circulation oven provided by the utility model, the circulating air is dehumidified in a condensation mode, so that the efficiency of dehumidification is higher and the persistence of the dehumidification capability is better compared with that of dehumidification by adopting the moisture absorbing piece, and the heat in the air before condensation and dehumidification can be transferred to the air after dehumidification to heat the air, so that the dehumidification efficiency is ensured and the loss of the heat of the air is reduced. The air transfers most of heat before entering the condensation dehumidifying box 2, so that the working requirement and power consumption of the condensation dehumidifying box 2 can be reduced.
The specific mode of the heat exchanger 4 is that a first heat exchange channel and a second heat exchange channel are arranged on the heat exchanger 4, the first heat exchange channel is communicated with the exhaust pipe 5, air in the oven body 1 flows into the air inlet after passing through the first heat exchange channel on the exhaust pipe 5, the second heat exchange channel is communicated with the return air pipe 6, and air in the condensation dehumidification box 2 flows into the oven body 1 after passing through the second heat exchange channel on the return air pipe 6. Referring to fig. 1, the exhaust duct 5 includes two exhaust sub-ducts, one of which communicates with the interior of the oven body 1 and the first heat exchange channel, and the other of which communicates with the first heat exchange channel and the air inlet, and the return duct 6 includes two return sub-ducts, one of which communicates with the air outlet and the second heat exchange channel, and the other of which communicates with the second heat exchange channel and the interior of the oven body 1.
The inside baffle 15 that is provided with of oven body 1, baffle 15 setting are in the inside region of intercommunication exhaust pipe 5 of oven body 1 and between the region of intercommunication return air pipe 6 for separate the region of the inside intercommunication exhaust pipe 5 of oven body 1 and the region of intercommunication return air pipe 6, avoid airing exhaust and return air mutual interference. The heating element 14 is specifically an electric heater, and is disposed in the cavity 13 and connected to a controller and a power supply of the oven, and is used for heating air in the cavity 13, so that the temperature of the air in the cavity 13 reaches a specified temperature.
In the utility model, the oven body 1 comprises an outer box 11 and an inner box 12, wherein the inner box 12 is used for placing materials to be dried, the inner box 12 is arranged in the outer box 11, a cavity 13 is formed between the outer wall of the inner box 12 and the inner wall of the outer box 11, a vent hole 121 for connecting the cavity 13 with the inner box 12 is formed in the inner box 12, the exhaust pipe 5 and the return air pipe 6 are both communicated with the cavity 13, the partition plate 15 is arranged in the cavity 13, when air circulates, the dehumidified air flows back into the cavity 13 through the return air pipe 6 in the direction shown by an arrow in fig. 1, then enters the inner box 12 from the cavity 13 along the vent hole 121 to dry the materials, and the air in the inner box 12 flows into the cavity 13 through the vent hole 121 and then enters the condensation dehumidifying box 2 through the exhaust pipe 5 to dehumidify. This mode of setting can avoid airing exhaust and return air under the condition of mutual interference, ensures the effective circulation flow of air in oven body 1 inside. The side opening type box door (not shown in the figure) is hinged on one side of the outer box 11, which is located on the inner box 12, and the box door setting structure is the same as that of the prior art, and only the inner part of the inner box 12 can be exposed after the box door is opened, so that an operator can place and take out materials.
The cavity 13 is located at the side and top of the inner box 12, specifically, at the left and right sides and top of the inner box 12 as shown in fig. 1, so as to ensure that air flows in from one side of the inner box 12 and flows out from one side, and the partition 15 is disposed at the top of the inner box 12.
In the utility model, the condensation dehumidifying box 2 comprises a box body 21 and a heat absorbing member 22, wherein the air inlet and the air outlet are arranged on the box body 21, the heat absorbing member 22 is arranged in the box body 21, air flows along the surface of the heat absorbing member 22 when entering the box body 2, the heat absorbing member 22 absorbs heat of the air, so that water vapor mixed in the air is condensed, and the condensed water falls into the box body 21 after being condensed, and can be discharged through a liquid outlet arranged on the box body 21. Wherein, the heat absorbing member 22 is a condensing tube, the condensing tube is a tubular heat exchanger, and a low-temperature medium flows through the condensing tube. Specifically, the condenser pipe is connected with an external low-temperature medium circulation system, the low-temperature medium flows along the inside of the condenser pipe, air flows along the surface of the condenser pipe when entering the box body 2, and the low-temperature medium in the condenser pipe absorbs the heat of the air through the condenser pipe, so that the water vapor mixed with the air is condensed. The low-temperature medium can be a refrigerant or chilled water, and the condensing tube is made of metal or other materials with good heat conduction performance.
The box body 21 is internally provided with a filter 23, the filter 23 is arranged between the heat absorbing member 22 and the air inlet, the filter 23 is a filter screen, particulate impurities in the air are filtered, and the particulate impurities in the air are prevented from being attached to the surface of the heat absorbing member 22 to influence the heat exchanging effect.
The utility model further comprises an air inlet pipe 7, wherein the air inlet pipe 7 is communicated with the air return pipe 6 and is positioned between the condensation dehumidification box 2 and the heat exchanger 4, and air can be supplemented into the oven body 1 through the air inlet pipe 7, wherein an air valve 71 is arranged on the air inlet pipe 7, when air supplement is needed, the air valve 71 is opened, and when air supplement is not needed, the air valve 71 is closed.
Claims (10)
1. The utility model provides a hot air circulation oven, characterized by, including oven body (1), condensation dehumidification box (2), fan (3) and heat exchanger (4), be provided with heating member (14) that are used for heating air in oven body (1), be provided with air intake and air outlet on condensation dehumidification box (2), oven body (1) inside communicates with the air intake through exhaust pipe (5), the air outlet passes through return air pipe (6) and oven body (1) inside intercommunication, fan (3) are used for driving the circulation flow between air along oven body (1) and condensation dehumidification box (2), heat exchanger (4) set up between exhaust pipe (5) and return air pipe (6), and heat in exhaust pipe (5) passes through heat exchanger (4) and transmits return air pipe (6).
2. The hot air circulation oven according to claim 1, wherein the heat exchanger (4) is provided with a first heat exchange channel and a second heat exchange channel, the first heat exchange channel is communicated with the exhaust pipe (5), air in the oven body (1) flows into the air inlet after passing through the first heat exchange channel along the exhaust pipe (5), the second heat exchange channel is communicated with the return air pipe (6), and air in the condensation dehumidification box (2) flows into the oven body (1) after passing through the second heat exchange channel along the return air pipe (6).
3. The hot air circulation oven according to claim 1, characterized in that a partition plate (15) is arranged inside the oven body (1), and the partition plate (15) is used for separating a region, which is communicated with the exhaust pipe (5), from a region, which is communicated with the return air pipe (6), inside the oven body (1).
4. A hot air circulation oven according to claim 3, characterized in that the oven body (1) comprises an outer box (11) and an inner box (12) for placing materials therein, the inner box (12) is arranged in the outer box (11) and is provided with a cavity (13) between the inner box and the outer box (11), the inner box (12) is provided with a vent (121) for connecting the cavity (13) with the inner box (12), the exhaust pipe (5) and the return air pipe (6) are both communicated with the cavity (13), and the partition plate (15) is arranged in the cavity (13).
5. The hot-air circulation oven according to claim 4, characterized in that the cavity (13) is located at the side and top of the inner box (12).
6. The hot air circulation oven according to any one of claims 1 to 5, characterized in that the condensation dehumidification box (2) comprises a box body (21) and a heat absorbing member (22) arranged in the box body (21), and the air inlet and the air outlet are arranged on the box body (21).
7. The hot-air circulation oven according to claim 6, characterized in that the heat absorbing member (22) is a condensation duct in which a low-temperature medium circulates.
8. The hot-air circulation oven according to claim 6, characterized in that a filter (23) is further arranged in the box body (21), and the filter (23) is arranged between the heat absorbing member (22) and the air inlet.
9. The hot air circulation oven according to any one of claims 1-5, 7, 8, further comprising an air inlet duct (7), said air inlet duct (7) being in communication with the return duct (6) and being located between the condensation dehumidification box (2) and the heat exchanger (4).
10. The hot-air circulation oven according to claim 9, characterized in that the air inlet pipe (7) is provided with an air valve (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321212635.9U CN219756915U (en) | 2023-05-18 | 2023-05-18 | Heated air circulation oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321212635.9U CN219756915U (en) | 2023-05-18 | 2023-05-18 | Heated air circulation oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219756915U true CN219756915U (en) | 2023-09-26 |
Family
ID=88084870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321212635.9U Active CN219756915U (en) | 2023-05-18 | 2023-05-18 | Heated air circulation oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219756915U (en) |
-
2023
- 2023-05-18 CN CN202321212635.9U patent/CN219756915U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |