CN218380372U

CN218380372U - Drying device

Info

Publication number: CN218380372U
Application number: CN202222517187.5U
Authority: CN
Inventors: 左国军; 唐洪湘; 磨建新; 吴勇茂; 钟文魁; 张琪
Original assignee: Changzhou Jiejiachuang Intelligent Equipment Co ltd
Current assignee: Changzhou Jiejiachuang Intelligent Equipment Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-24
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses a drying device relates to solar cell making devices technical field. The drying device comprises a drying box body with a drying space, an air inlet channel and an air exhaust channel, wherein the air inlet channel is connected with the drying box body and is used for blowing air flow into the drying space, and the air exhaust channel is connected with the drying box body and is used for exhausting waste gas generated after the heat exchange between the air flow and a piece to be dried is completed; the air inlet channel can exchange heat with the waste gas so as to improve the temperature of the airflow in the air inlet channel. The aim is to recycle the heat in the waste gas generated by the drying device and reduce the energy consumption.

Description

Drying device

Technical Field

The utility model relates to a solar cell making devices technical field, in particular to drying device.

Background

When an HIT (Heterojunction with intrinsic thin) solar photovoltaic cell is prepared, after conductive paste is printed on the surface of a silicon wafer, the silicon wafer needs to be dried and cured.

The existing drying process comprises the following steps: cold air enters the heating cavity through the ventilation pipeline, is heated by the heating wire in the heating cavity to form hot air, and the hot air continuously passes through the silicon wafer and is then discharged from the waste gas channel.

Although the temperature of the hot air is lowered after passing through the silicon wafer, the temperature of the exhaust gas discharged through the exhaust gas channel is higher than that of the cool air introduced from the air duct. Directly discharge waste gas, the heat in the waste gas that can make is wasted, has increased the consumption of the energy, how to reduce the consumption of the energy with the heat recycle in the waste gas of drying device production, has become the technological problem who awaits the solution urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drying device aims at reducing the consumption of the energy with the heat recovery in the waste gas that drying device produced.

In order to achieve the above object, the present invention provides a drying device, which comprises a drying box body with a drying space, an air inlet channel connected to the drying box body for blowing air flow into the drying space, and an air exhaust channel connected to the drying box body for exhausting waste gas generated after the air flow and a piece to be dried complete heat exchange;

the air inlet channel can exchange heat with the waste gas so as to improve the temperature of the air flow in the air inlet channel.

In an embodiment of the present application, the air intake channel is partially or completely disposed in the drying space and located between the air intake of the air exhaust channel and the piece to be dried.

In an embodiment of the application, the part that is located on the inlet air channel in the stoving space is the body array that many bodys are constituteed.

In an embodiment of the present application, the tube is a copper tube.

In one embodiment of the present application, the diameter of the tube is 10mm.

In an embodiment of this application, be equipped with on the body array and carry out at least one fixed plate fixed to each body in the body array.

In an embodiment of the present application, the number of the fixing plates is two, and at least one supporting rod is connected between the two fixing plates.

In an embodiment of the present application, the drying device further includes a heating element disposed in the drying box.

In an embodiment of this application, drying device is still including locating drying box is internal be used for with the air current that inlet air channel insufflates blows to the first fan of waiting to dry the piece.

In an embodiment of the application, an air outlet of the air exhaust channel is provided with a second fan for pumping out the waste gas in the drying box.

Adopt above-mentioned technical scheme, drying device is connected with inlet air channel and exhaust air channel on drying box, the drying box, carries out the heat transfer through carrying out inlet air channel and drying box exhaust waste gas to thermal recycle in the realization waste gas has reduced the energy consumption of drying box when drying, simple structure, the implementation of being convenient for.

Drawings

The invention will be described in detail with reference to the following embodiments and the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is described in detail with reference to the accompanying drawings and embodiments. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention.

As shown in fig. 1 to fig. 2, in order to achieve the above object, the present invention provides a drying device, which comprises a drying box 20 with a drying space, an air intake channel 10 connected to the drying box 20 for blowing air into the drying space, and an air exhaust channel 30 connected to the drying box 20 for exhausting air and waste gas generated after heat exchange between the air and a piece to be dried;

the air inlet channel 10 can exchange heat with the waste gas to increase the temperature of the air flow in the air inlet channel 10.

Specifically, the drying device comprises a drying box body 20, an air inlet channel 10 and an air exhaust channel 30.

Wherein, the drying box 20 is made of metal material, such as aluminum alloy material, alloy steel material, etc. The drying box body 20 made of metal materials has the advantages of strong supporting capability, wear resistance and the like. Of course, the drying box 20 may be made of inorganic material, such as concrete, etc., according to the design requirement. The drying box body 20 made of inorganic materials has the advantages of low cost, easy manufacture, high temperature resistance and the like. Because drying box 20 in this application is the stoving that is used for the silicon chip, requires higher to clean degree, therefore drying box 20 in this application is preferred to be made by metal material.

The door body is arranged on the drying box body 20 and used for feeding and/or discharging, and the material used by the door body is the same as that used by the drying box body 20, so that the door body has the same characteristics, and the description is omitted.

The air intake duct 10 is made of metal material, such as aluminum alloy material, alloy steel material, etc., and the air intake duct 10 made of metal material has the advantages of strong supporting capability, wear resistance, etc. The air outlet end of the air inlet channel 10 is fixedly connected with the drying box 20, for example, welded. Adopt fixed connection's mode to be connected between inlet air channel 10's air-out end and the stoving box 20, can improve the joint strength between inlet air channel 10 and the stoving box 20, improve the stability of inlet air channel 10 during operation. It is conceivable that an air pump is connected to an air inlet of the air intake duct 10 in order to facilitate blowing of the air flow into the air intake duct 10.

The exhaust duct 30 is made of a metal material, such as an aluminum alloy material, an alloy steel material, and the like, and the exhaust duct 30 made of the metal material has the advantages of strong manufacturing capability, wear resistance, and the like. The air intake end of the air exhaust channel 30 is fixedly connected with the drying box body 20, for example, welded. The air inlet end of the air exhaust channel 30 is fixedly connected with the drying box body 20, so that the connection strength between the air exhaust channel 30 and the drying box body 20 can be improved, and the stability of the air exhaust channel 30 during working is improved. It is conceivable that an air pump is connected to an air outlet of the exhaust duct 30 in order to facilitate the exhaust duct 30 to discharge the exhaust air in the drying cabinet 20. The exhaust passage 30 is used for exhausting waste gas generated after the heat exchange between the air flow and the piece to be dried is completed, so that the air flow circulation is realized, and the drying of the piece to be dried is facilitated.

The inlet duct 10 may exchange heat with the exhaust gas to increase the temperature of the air flow in the inlet duct 10.

The specific implementation modes comprise the following steps:

1. the body spiral of inlet air duct 10 is around on the body of exhaust air duct 30, because on the heat in the waste gas can radiate the body of exhaust air duct 30, accomplish the heat transfer back between the body of inlet air duct 10 and the exhaust air duct 30, the body of inlet air duct 10 can be with the air current in the heat conduction gives inlet air duct 10 to realize thermal recycle in the waste gas, simple structure, the implementation of being convenient for.

2. The pipe body of the air inlet channel 10 penetrates through the pipe body of the air exhaust channel 30, so that part or all of the pipe bodies of the air inlet channel 10 are positioned in the air exhaust channel 30, heat in waste gas can directly exchange heat with the pipe body of the air inlet channel 10, and therefore heat in the waste gas is recycled, the structure is simple, and implementation is facilitated.

Because the heat exchange efficiency of the above-mentioned second kind of embodiment is the highest, therefore during inlet air duct 10 and the waste gas heat transfer in this application, adopt the second kind of mode.

Adopt above-mentioned technical scheme, drying device is connected with inlet air channel 10 and exhaust air channel 30 on drying box 20, carries out the heat transfer through the waste gas with inlet air channel 10 and drying box 20 exhaust to realize thermal recycle in the waste gas, reduced the energy consumption of drying box 20 when drying, simple structure, the implementation of being convenient for.

In an embodiment of the present application, the air inlet channel 10 is partially or completely disposed in the drying space and located between the air inlet of the air outlet channel 30 and the piece to be dried.

Specifically, the pipe of the air intake channel 10 is partially or completely located in the drying box 20, and it is conceivable that the larger the area of the pipe of the air intake channel 10 located in the drying box 20 is, the more heat in the exhaust gas is absorbed by the pipe. The pipe body of the air inlet channel 10 is positioned between the air inlet of the air exhaust channel 30 and the piece to be dried. Therefore, most of heat absorbed by the pipe body of the air inlet channel 10 is ensured to come from waste gas, the heat in the clean air flow absorbed by the air inlet channel 10 is avoided, and the influence on the drying of the drying box body 20 on the to-be-dried piece is reduced. The waste gas referred to in the application refers to the air flow passing through the piece to be dried and carrying part of water vapor on the piece to be dried.

By adopting the technical scheme, the air inlet channel 10 is partially or completely arranged in the drying space, and the air inlet channel 10 is positioned between the air inlet of the air exhaust channel 30 and the piece to be dried, so that the heat in the waste gas is recovered by the air flow in the air inlet channel 10, the energy consumption of the drying box body 20 during drying is reduced, the structure is simple, and the implementation is convenient.

In an embodiment of the present application, a portion of the air intake channel 10 located in the drying space is a tube array formed by a plurality of tubes.

Specifically, the part that lies in the stoving space on inlet air channel 10 is the body array that many root canals are constituteed, sets this partial inlet air channel 10 into the body array, can improve the heat transfer area between inlet air channel 10 and the waste gas, improves the heat exchange efficiency between inlet air channel 10 and the waste gas, simple structure, the implementation of being convenient for.

In an embodiment of the present application, the tube is a copper tube.

In one embodiment of the present application, the diameter of the tube is 10mm.

Specifically, set the diameter of body to 10mm, under the prerequisite that does not reduce inlet air channel 10 intake, can further improve the heat transfer area between inlet air channel 10 and the waste gas, improve heat exchange efficiency.

In an embodiment of the present application, the tube array is provided with at least one fixing plate 11 for fixing each tube in the tube array.

Specifically, be provided with fixed plate 11 on the body array, when fixed plate 11 was one, fixed plate 11 was located the intermediate position of body array to the realization is fixed to the body array.

When the quantity of fixed plate 11 is two, two fixed plates 11 set up relatively on the body array, realize the fixed to the body array.

The tube array is fixed through the fixing plate 11, and the stability of the tube array in working can be improved.

By adopting the technical scheme, the structure is simple and the implementation is convenient.

In an embodiment of the present application, the number of the fixing plates 11 is two, and at least one supporting rod 12 is connected between the two fixing plates 11.

In an embodiment of the present application, the drying apparatus further includes a heating element 22 disposed in the drying box 20.

Specifically, heating member 22 adopts the resistance wire heating commonly used among the prior art, through the resistance wire heating, and the radiation is even, can conveniently treat the fast drying of stoving piece, and the piece of treating in this application is the silicon chip.

In an embodiment of the present application, the drying device further includes a first blower 21 disposed in the drying box 20 for blowing the airflow blown by the air intake channel 10 to the piece to be dried.

Specifically, drying device still includes first fan 21, and first fan 21 adopts the axial fan who uses commonly among the prior art, and axial fan has the amount of wind big, advantage such as convenient maintenance. The air current that blows in with inlet air channel 10 through first fan 21 blows to waiting to dry the piece can accelerate the stoving of waiting to dry the piece, simple structure, is convenient for implement.

In an embodiment of the present application, a second fan 31 for extracting the exhaust gas from the drying box 20 is disposed at the air outlet of the exhaust channel 30.

Specifically, the air outlet of the air exhaust channel 30 is provided with a second fan 31, and the second fan 31 is used for extracting the waste gas in the drying box 20, so that the waste gas in the drying box 20 can be conveniently discharged.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A drying device is characterized by comprising a drying box body with a drying space, an air inlet channel connected with the drying box body and used for blowing air flow into the drying space, and an air exhaust channel connected with the drying box body and used for exhausting waste gas generated after the air flow and a piece to be dried complete heat exchange;

2. The drying apparatus of claim 1, wherein the air intake channel is partially or entirely disposed in the drying space and located between the air intake of the air exhaust channel and the object to be dried.

3. The drying apparatus of claim 2, wherein the portion of the air intake channel located in the drying space is a tube array consisting of a plurality of tubes.

4. A drying apparatus as claimed in claim 3, in which said tubular body is a copper tube.

5. A drying apparatus as claimed in claim 3, in which the tubular body is 10mm in diameter.

6. A drying apparatus according to claim 3, wherein the array of tubes is provided with at least one retaining plate for retaining each tube in the array of tubes.

7. The drying apparatus of claim 6, wherein the number of the fixing plates is two, and at least one support rod is connected between the two fixing plates.

8. The drying apparatus of claim 1, further comprising a heating element disposed within said drying oven housing.

9. The drying apparatus as claimed in claim 1, wherein said drying apparatus further comprises a first blower disposed in said drying box for blowing the air flow blown from said air inlet channel toward the object to be dried.

10. The drying apparatus of claim 1, wherein a second fan for drawing out exhaust gas from the drying box is provided at an air outlet of the air exhaust passage.