CN209893817U - Vacuum oven - Google Patents
Vacuum oven Download PDFInfo
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- CN209893817U CN209893817U CN201920296580.1U CN201920296580U CN209893817U CN 209893817 U CN209893817 U CN 209893817U CN 201920296580 U CN201920296580 U CN 201920296580U CN 209893817 U CN209893817 U CN 209893817U
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Abstract
A vacuum oven comprises a box body provided with a vacuum cavity, a heating plate and a control device, wherein the heating plate is arranged on at least one inner wall of the vacuum cavity, or the heating plate is used as the at least one inner wall of the vacuum cavity, and the control device is at least used for controlling the heating or stopping the heating of the heating plate. The utility model has the advantages of no limitation of heating source, saving heating time and reducing energy consumption.
Description
Technical Field
The utility model belongs to the technical field of the oven, especially, relate to a vacuum oven.
Background
A related art vacuum oven includes a vacuum chamber for placing a material to be baked, and a heating wire arranged around the vacuum chamber. When the vacuum oven is used, the vacuum oven heats materials in the vacuum cavity through the heating wire to dry the materials, and dry nitrogen is filled into the vacuum cavity by the vacuum oven due to the fact that the vacuum heat conduction efficiency is low, and the heat conduction efficiency and the drying efficiency are improved.
In the prior art, after the dry nitrogen gas is kept still in the vacuum cavity for a period of time, a certain amount of water vapor is absorbed, and the nitrogen gas needs to be pumped away, then the dry nitrogen gas is continuously filled, and the process is repeated. The drying efficiency of the vacuum oven is reduced in the period of pumping away the nitrogen, and the drying of the material for one time needs to circularly charge and discharge the nitrogen and heat for many times, so that the vacuum oven in the prior art cannot fully utilize the drying time of the material in the vacuum cavity, namely, the problems of overlong drying time and low drying efficiency exist, and the problems of large electric energy consumption and high cost caused by reheating of newly charged dry nitrogen in the processes of repeatedly charging and discharging the nitrogen and heating.
Chinese patent document CN204388471 discloses a vacuum drying oven, which comprises a material box and a box body provided with a vacuum cavity, wherein the vacuum cavity is internally provided with a structure for placing the material box, and the material box comprises a bearing bottom plate for bearing materials and a heating sheet for heating the materials on the bearing bottom plate; the vacuum drying box also comprises a control device and a socket powered by the control device, and the socket is positioned on the inner wall of the vacuum cavity; and the material box is provided with a plug which is matched with the socket and is electrically connected with the heating sheet. The vacuum drying oven adopts the heating sheet to directly heat the dried material, so that the vacuum drying oven has the advantages of high drying efficiency, short drying time and capability of effectively reducing the drying cost.
However, this vacuum drying oven adopts the method that the material to be dried is firstly put in a material box with a heating plate, then the material box is pushed into the vacuum chamber of the vacuum drying oven, and then the drying is carried out in the vacuum state. Therefore, the vacuum drying box has the following problems that firstly, the heating plate of the vacuum drying box can only adopt electric heating, but can not adopt other heating modes, and the heating source is limited; secondly, the heating plate of the vacuum drying box can only be an electric heating plate, so a socket is required to be arranged on the inner wall of the vacuum cavity, a plug which is matched with the socket and is electrically connected with the heating plate is required to be arranged on the material box, the socket and the plug are required to be plugged once when the material box is taken out or pushed in, and the problem that the socket and the plug are in poor contact and even damaged can occur after a little long time; thirdly, after the vacuum drying oven is dried, on one hand, the material box and the materials are required to be completely taken out for cooling, so that the problem of long cooling time is caused, on the other hand, a new material box is required to be arranged, the whole material box and the materials in the vacuum cavity are required to be reheated, the additional heating time is required, and a large amount of electric energy is consumed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a vacuum oven which is not limited by a heating source, has simpler structure and more convenient use, and can save the heating time and reduce the energy consumption.
The technical scheme of the utility model is that: the utility model provides a vacuum oven, includes the box, hot plate and the controlling means that are equipped with the vacuum cavity, the hot plate is established on at least one inner wall of vacuum cavity, perhaps the hot plate is as at least one inner wall of vacuum cavity uses, controlling means is used for controlling the heating of hot plate or stops heating at least.
As an improvement to the utility model, the heating plate is an electric heating plate or a heat medium heating plate.
As an improvement to the utility model, the hot medium heating plate is a hot oil medium heating plate or a steam medium heating plate.
As an improvement to the utility model, be equipped with an at least perpendicular to on the hot plate the heat-conducting plate of hot plate, the heat-conducting plate will the vacuum cavity falls into a plurality of little spaces.
As an improvement to the utility model, the heat conducting plate is made of a highly heat conducting material.
As an improvement to the utility model, the high thermal conductive material is an aluminum plate or a copper plate.
As an improvement to the utility model, the heat-conducting plate is a double heat-conducting plate structure, and an expansion structure is arranged between the double heat-conducting plate structure.
As an improvement to the utility model, be equipped with an at least perpendicular to on the hot plate the second hot plate of hot plate, the second hot plate will the vacuum cavity falls into a plurality of little spaces.
As an improvement to the utility model, the second heating plate is an electric heating plate or a heat medium heating plate.
As an improvement to the utility model, the hot medium heating plate is a hot oil medium heating plate or a steam medium heating plate.
As an improvement to the utility model, the second hot plate is a double-heating-plate structure, and an expansion structure is arranged between the double-heating-plate structure.
As an improvement to the utility model, the vacuum oven still includes anchor clamps, anchor clamps include bottom plate, perpendicular to the curb plate of bottom plate end to end in proper order, the curb plate constitutes the cavity that holds by the drying thing on the curb plate.
As an improvement to the utility model, a through hole is arranged on the bottom plate.
As an improvement to the utility model, the heating plate contacts the dried object directly or through a high heat conduction material.
The utility model has the advantages of as follows: firstly, the problem that the heating source is limited because the heating plate of the vacuum drying box in the prior art can only adopt electric heating but can not adopt other heating modes is solved, the utility model can adopt not only an electric heating plate, but also an oil heating plate, a steam heating plate and the like, thereby enlarging the application range of the heating source; secondly, the heating plate can be arranged on the inner wall of any one surface or more than two inner walls of the vacuum cavities 1-6, when more than two heating plates are arranged, the heating speed can be obviously improved, and the heating time can be shortened; thirdly, the heating plate of the utility model is directly arranged on the inner wall of the vacuum cavity of the vacuum oven, or the heating plate is used as the inner wall of the vacuum cavity, thus overcoming the problems that the heating plate of the existing vacuum drying box can only be an electric heating plate, so that the inner wall of the vacuum cavity must be provided with a socket, and a material box must be provided with a plug which is matched with the socket and is electrically connected with a heating sheet, the material box is taken out or pushed every time, the socket and the plug are required to be pulled and inserted once, the time is long, and the socket and the plug can have poor contact and even damage; fourthly, the utility model discloses directly establish in the vacuum chamber by the dry thing or establish in the vacuum chamber through anchor clamps, when the dry thing is directly established in the vacuum chamber, after the dry thing reaches the requirement of toasting, only need directly take out the dry thing and cool off can, and the hot plate need not take out, can directly advance the next batch of material on the one hand, the heat of the hot plate in the vacuum chamber does not have the loss, can accelerate the rate of rise of temperature of next batch, simultaneously, because the hot plate does not need to cool off, also can save the energy consumption; when the dried object is arranged in the vacuum cavity through the clamp, after the dried object meets the baking requirement, the clamp with the dried object is only required to be taken out and cooled together, the heating plate is not required to be taken out, on one hand, the dried object can directly enter the next batch of materials, the heat of the heating plate in the vacuum cavity is not lost, the heating speed of the next batch of materials can be accelerated, and meanwhile, the heating plate is not required to be cooled, so that the energy consumption can be saved. Additionally, the utility model discloses still have the structure simpler, use more convenient advantage.
Drawings
Fig. 1 is a schematic plan view of an embodiment of the present invention.
Fig. 2 is a schematic plan view of a second embodiment of the present invention.
Fig. 3 is a schematic plan view of a third embodiment of the present invention.
Fig. 4 is a schematic plan view of a fourth embodiment of the present invention.
Fig. 5 is a schematic side view of the embodiment of fig. 4.
Fig. 6 is a schematic plan view of a clamp of the present invention.
Fig. 7 is a schematic plan view of another clip of the present invention.
Detailed Description
Referring to fig. 1, fig. 1 shows a first embodiment of a vacuum oven, which includes a box body 1 having a vacuum cavity 11, a heating plate 12 and a control device (not shown) at least for controlling the heating of the heating plate 12 or stopping the heating, of course, the control device may also be used for collecting signals and controlling the sequence and time of vacuum pumping, and the structure and principle of the control device are the prior art and are not described herein again; the heating plate 12 is provided on the lower inner wall of the vacuum chamber 11, and a carrying plate 13 is provided under the heating plate 12 in order to increase the bearing force of the heating plate 12 (of course, the heating plate 12 can also be used as the lower inner wall of the vacuum chamber 11, as long as the heating plate 12 has the capability of carrying the object to be dried 3, the fork in fig. 1 represents the object to be dried 3, the same holds true below), although in this embodiment, only the structure of the heating plate 12 on the lower inner wall of the vacuum chamber 11 is shown, in fact, the heating plate 12 can be provided on the upper, lower, left, right, front or rear inner wall of the vacuum chamber 11, or on any two or more inner walls of the upper, lower, left, right, front and rear inner walls of the vacuum chamber 11, obviously, the heating plate 12 can also be used as the upper, lower, left, right, front or rear inner walls of the vacuum chamber 11, or as any two or more of the upper, lower, left, right, front and rear inner walls of the vacuum chamber 11. Preferably, the heating plate 12 is an electric heating plate or a heat medium heating plate; the hot medium heating plate is a hot oil medium heating plate or a steam medium heating plate. In this embodiment, the same structure of three layers is provided to increase the throughput of the vacuum oven.
The present embodiment is suitable for directly placing the object to be dried on the heating plate 12, the utility model firstly overcomes the problems that the heating plate of the vacuum drying oven in the prior art can only adopt electric heating, but can not adopt other heating methods, and the heating source is limited, the utility model can adopt not only an electric heating plate, but also an oil heating plate, a steam heating plate and the like, thereby enlarging the application range of the heating source; secondly, the heating plate can be arranged on the inner wall of any one surface or more than two inner walls of the 1-6 surfaces of the vacuum cavity, when more than two heating plates are arranged, the heating speed can be obviously improved, and the heating time can be shortened; thirdly, the heating plate of the utility model is directly arranged on the inner wall of the vacuum cavity of the vacuum oven, or the heating plate is used as the inner wall of the vacuum cavity, thus overcoming the problems that the heating plate of the existing vacuum drying box can only be an electric heating plate, so the inner wall of the vacuum cavity is required to be provided with a socket, the material box is required to be provided with a plug which is matched with the socket and is electrically connected with the heating plate, the material box is taken out or pushed, the socket and the plug are required to be pulled out and inserted once every time, the time is long, and the socket and the plug can have poor contact and even be damaged; fourthly, the utility model discloses directly establish in the vacuum chamber by the dry thing or establish in the vacuum chamber through anchor clamps, when the dry thing is directly established in the vacuum chamber, after the dry thing reaches the requirement of toasting, only need directly take out the dry thing and cool off can, and the hot plate need not take out, can directly advance the next batch of material on the one hand, the heat of the hot plate in the vacuum chamber does not have the loss, can accelerate the rate of rise of temperature of next batch, simultaneously, because the hot plate does not need to cool off, also can save the energy consumption; when the dried object is arranged in the vacuum cavity through the clamp, after the dried object meets the baking requirement, the clamp with the dried object is only required to be taken out and cooled together, the heating plate is not required to be taken out, on one hand, the dried object can directly enter the next batch of materials, the heat of the heating plate in the vacuum cavity is not lost, the heating speed of the next batch of materials can be accelerated, and meanwhile, the heating plate is not required to be cooled, so that the energy consumption can be saved. Additionally, the utility model discloses still have the structure simpler, use more convenient advantage.
Referring to fig. 2, fig. 2 shows a second embodiment of a vacuum oven, which is the same as the embodiment shown in fig. 1 in general structure, except that a heating plate 12 is respectively arranged on the upper and lower inner walls of the vacuum chamber 11 of the vacuum oven (or a heating plate is arranged on the front and rear inner walls, or even on the front, rear, left, right, upper and lower inner walls, or on more than two of the front, rear, left, right, upper and lower inner walls), two heat conduction plates 121 perpendicular to the heating plate 12 are arranged between the two heating plates 12 (the number of heat conduction plates can be set according to actual conditions), and the heat conduction plates 121 divide the vacuum chamber 11 into a plurality of small spaces 122, which is suitable for the object 3 to be dried with a smaller volume. Preferably, the heat conductive plate 121 is made of a high heat conductive material; the high heat conduction material is an aluminum plate or a copper plate.
Of course, the heat conducting plate 121 in this embodiment can be replaced by a second heating plate, and in this embodiment, at least three surfaces are heated to the object to be dried 3, wherein at least four surfaces of the small space 122 located in the middle are heated to the object to be dried 3, so that the heating speed of the object to be dried 3 can be greatly increased.
Preferably, the heat conducting plate 121 may be a double heat conducting plate structure (not shown), and an expansion structure is disposed between the double heat conducting plate structures. Specifically, the expansion structure can be a four-bar structure, and the distance between the two heat conduction plates 121 is drawn in or expanded by rubbing the two heat conduction plates, so as to clamp the object to be dried 3; of course, the expanding structure may be other structures, such as a sphere disposed on the two heat conducting plates 121, and a hemispherical recess disposed on each of the opposite surfaces of the two heat conducting plates 121, when the sphere is located in the recess, the two heat conducting plates 121 are in a closed state, and when the sphere is located between the planes of the two heat conducting plates 121, the two heat conducting plates 121 can be expanded by a distance equal to the diameter of the sphere. In this embodiment, the heating plate 12 contacts the object 3 to be dried directly or through a highly heat conductive material.
Referring to fig. 3, fig. 3 shows a third embodiment of a vacuum oven, and the embodiment shown in fig. 3 has the same general structure as the embodiment shown in fig. 1, except that a heating plate 12 is respectively disposed on the left and right inner walls of a vacuum chamber 11 of the vacuum oven, a second heating plate 123 perpendicular to the heating plate 12 is further disposed between the two heating plates 12 (the number of the second heating plates 123 can be set according to actual conditions), and the second heating plate 123 divides the vacuum chamber 11 into a plurality of small spaces 122, which is suitable for drying objects 3 with a smaller volume. The second heating plate 123 is an electric heating plate or a heat medium heating plate, and the heat medium heating plate is a hot oil medium heating plate or a steam medium heating plate.
Preferably, the second hot plate 123 is a double-heating-plate structure, and an expansion structure is arranged between the double-heating-plate structure. Specifically, the expansion structure can be a four-bar structure, and the distance between the two second hot plates 123 is drawn in or expanded by twisting the two second hot plates 123, so as to clamp the object to be dried 3; of course, the expanding structure may be other structures, such as a sphere disposed on the two second heat plates 123, a hemispherical recess disposed on each of the opposite surfaces of the two second heat plates 123, when the sphere is located in the recess, the two second heat plates 123 are in a closed state, and when the sphere is located between the planes of the two second heat plates 123, the two second heat plates 123 can be expanded by a distance equal to the diameter of the sphere. In this embodiment, the second hot plate 123 contacts the object to be dried 3 directly or through a highly heat conductive material.
Referring to fig. 4 to 6, fig. 4 to 6 disclose a fourth embodiment of a vacuum oven, which is substantially the same as the embodiment shown in fig. 2 in structure in comparison with the embodiment shown in fig. 4 to 6, except that the vacuum oven further comprises a clamp 2, wherein the clamp 2 comprises a bottom plate 21 and side plates 22 which are connected end to end in sequence and are perpendicular to the bottom plate 21, and the side plates 22 form a cavity 23 for accommodating a dried object. In this embodiment, an upper frame plate (not shown) may be disposed on the side plate 22 for lifting; of course, the lifting function of the upper frame plate may be replaced by a lifting ring or a lifting handle provided on the outer wall of the opposite side plate 22. In this embodiment, the bottom plate 21 is provided with a through hole 211.
In order to make the object 3 directly contact with the heating plate 12, a corresponding groove 124 may be formed on the heating plate 12, and the remaining bottom plate after the through hole 211 is opened falls into the groove 124, so that the bottom surface of the object 3 can directly contact with the heating plate 12, thereby improving the heat transfer efficiency.
When the drying device is used, the object 3 to be dried can be placed into the clamp, then the clamp is pushed into the vacuum cavity 11 of the vacuum oven, and the oven door 14 is closed, so that the drying device can work.
Referring to fig. 7, fig. 7 is a schematic plan view of another clamp of the present invention. The jig 2 shown in fig. 7 has the same general structure as that of the jig shown in fig. 6, except that the bottom plate 21 is of a whole plate structure, in which case the bottom plate 21 is made of a highly heat conductive material, and after the object 3 to be dried is loaded into the cavity 23, the heat of the heating plate 12 is first conducted to the bottom plate 21, and then the object 3 to be dried is reheated by the bottom plate 21.
Various other modifications and changes can be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims.
Claims (10)
1. The utility model provides a vacuum oven, includes box (1), hot plate (12) and the controlling means that is equipped with vacuum cavity (11), its characterized in that: the heating plate (12) is arranged on at least one inner wall of the vacuum cavity (11), or the heating plate (12) is used as at least one inner wall of the vacuum cavity (11), and the control device is at least used for controlling the heating of the heating plate (12) or stopping heating.
2. The vacuum oven of claim 1, wherein: the heating plate (12) is an electric heating plate or a heat medium heating plate.
3. The vacuum oven of claim 2, wherein: the hot medium heating plate is a hot oil medium heating plate or a steam medium heating plate.
4. The vacuum oven of claim 1, 2 or 3, wherein: the heating plate (12) is provided with at least one heat conducting plate (121) which is vertical to the heating plate (12), and the heat conducting plate (121) divides the vacuum cavity (11) into a plurality of small spaces (122).
5. The vacuum oven of claim 4, wherein: the heat-conducting plate (121) is made of a highly heat-conducting material.
6. The vacuum oven of claim 5, wherein: the high heat conduction material is an aluminum plate or a copper plate.
7. The vacuum oven of claim 4, wherein: the heat conducting plate (121) is of a double heat conducting plate structure, and an expansion structure is arranged between the double heat conducting plate structures.
8. The vacuum oven of claim 1, 2 or 3, wherein: the heating plate (12) is provided with at least one second heating plate (123) which is vertical to the heating plate (12), and the vacuum cavity (11) is divided into a plurality of small spaces (122) by the second heating plate (123).
9. The vacuum oven of claim 8, wherein: the second heating plate (123) is of a double-heating-plate structure, and an expansion structure is arranged between the double-heating-plate structure.
10. The vacuum oven of claim 1, 2 or 3, wherein: the vacuum oven also comprises a clamp (2), wherein the clamp (2) comprises a bottom plate (21) and side plates (22) which are perpendicular to the bottom plate (21) and sequentially connected end to end, and the side plates (22) form a cavity (23) for accommodating a dried object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920296580.1U CN209893817U (en) | 2019-03-09 | 2019-03-09 | Vacuum oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920296580.1U CN209893817U (en) | 2019-03-09 | 2019-03-09 | Vacuum oven |
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| Publication Number | Publication Date |
|---|---|
| CN209893817U true CN209893817U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920296580.1U Active CN209893817U (en) | 2019-03-09 | 2019-03-09 | Vacuum oven |
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| CN (1) | CN209893817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827384A (en) * | 2019-03-09 | 2019-05-31 | 深圳市信宇人科技股份有限公司 | Vacuum oven |
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2019
- 2019-03-09 CN CN201920296580.1U patent/CN209893817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827384A (en) * | 2019-03-09 | 2019-05-31 | 深圳市信宇人科技股份有限公司 | Vacuum oven |
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