CN214841673U

CN214841673U - Gas heating box and drying equipment

Info

Publication number: CN214841673U
Application number: CN202120016785.7U
Authority: CN
Inventors: 张淋; 郑严严; 梁先东
Original assignee: Jiangsu Baoxin Technology Co ltd
Current assignee: Jiangsu Baoxin Technology Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-11-23
Anticipated expiration: 2031-01-05

Abstract

The utility model discloses a gas heating box and drying equipment, which comprises an air inlet, an air outlet, a box body with a cavity inside and a plurality of heating components positioned in the cavity, wherein the air inlet and the air outlet are respectively positioned on different side walls of the box body; still set up an at least baffle in the cavity, the one end of baffle with the lateral wall of box is connected, the other end of baffle with intercommunication air flue has between another lateral wall of box, the cavity by the heating chamber of a plurality of intercommunications is separated into to the baffle, adjacent two the heating chamber passes through the intercommunication air flue is linked together, adjacent two the intercommunication air flue is close to respectively the different lateral walls of box. The utility model provides a gas heating case independent setting separates separately with the fan, when guaranteeing stoving effect, improvement product finished product quality, also can satisfy the demand of maintaining the convenience to the fan.

Description

Gas heating box and drying equipment

Technical Field

The utility model relates to a solar cell makes technical field, especially relates to a gas heating case and drying equipment.

Background

The solar cell is also called as a solar chip or a photovoltaic cell, is a photoelectric semiconductor sheet which directly generates electricity by utilizing sunlight and directly converts light energy into electric energy through a photoelectric effect or a photochemical effect; with the continuous development of the solar cell industry, the crystalline silicon solar cell is always an absolute mainstream product in the photovoltaic market. The silicon chip is used as a basic material of the crystalline silicon solar cell, and the quality of the silicon chip has important influence on the performance of the cell; on one hand, internal defects and impurities of the silicon wafer can directly influence the efficiency and stability of the battery; on the other hand, the appearance defects and surface quality of the silicon wafer also have a significant influence on the manufacture, appearance, and the like of the battery.

The existing solar cell silicon wafer is usually processed by a wet method, wherein a fan and a heater are arranged in drying equipment for drying the silicon wafer, so that the maintenance difficulty of the fan is high. Therefore, a gas heating box is needed, which is independent of the fan, so that the drying effect is ensured, and the requirement for the convenience of fan maintenance can be met.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides a gas heating case and drying equipment, outside being independent of the fan, can high-efficient heating, reinforcing stoving effect.

The utility model provides a gas heating box, which comprises an air inlet, an air outlet, a box body with a cavity inside and a plurality of heating components positioned in the cavity, wherein the air inlet and the air outlet are respectively positioned on different side walls of the box body; still set up an at least baffle in the cavity, the one end of baffle with the lateral wall of box is connected, the other end of baffle with intercommunication air flue has between another lateral wall of box, the cavity by the heating chamber of a plurality of intercommunications is separated into to the baffle, adjacent two the heating chamber passes through the intercommunication air flue is linked together, adjacent two the intercommunication air flue is close to respectively the different lateral walls of box.

Further, the heating component is a quartz heater.

Further, a plurality of the heating assemblies are uniformly arranged in the heating cavity.

Further, a plurality of the partition plates are arranged in parallel with each other, and a plurality of the heating cavities are divided into a continuous S-shaped structure by the partition plates.

Further, the air inlet is communicated with one side of the heating cavity far away from the communicating air passage, and the air outlet is also communicated with one side of the other heating cavity far away from the communicating air passage.

Furthermore, an outer protective cover is arranged on the periphery of the box body, a gap is reserved between the outer protective cover and the box body, and the side walls of the outer protective cover and the side walls of the box body are arranged in a one-to-one correspondence mode.

Furthermore, a plurality of connecting pieces are arranged between the box body and the outer protective cover, and the connecting pieces are used for fixedly connecting the outer protective cover and the box body relatively.

Furthermore, the periphery of the box body is also provided with a heat-insulating layer, and the heat-insulating layer is uniformly filled in a gap between the box body and the outer protective cover.

Further, the gas outlet is provided with a temperature sensor, and the temperature sensor is used for monitoring the gas temperature of the gas outlet.

The utility model also provides a drying equipment, including above the gas heating case.

Implement the utility model discloses, following beneficial effect has:

1. the box body is divided into the heating cavities by the partition plates, so that the heating path of the gas and the retention time of the gas in the box body are increased, full heating is facilitated, and the space utilization rate is high.

2. The quartz heater is adopted, so that the electric heat conversion efficiency is high, and the energy-saving effect is good; meanwhile, the working temperature of the quartz heater is high, so that the gas heating speed is high, the heating efficiency is high, the drying effect can be effectively improved, and the quality of a finished product is further improved.

3. The outer shield and the heat preservation of setting up outside the box can prevent effectively that the heat from overflowing and loosing, and heating element's heat utilization rate is high, and gaseous intensification is fast and the temperature is comparatively stable, guarantees that the gas temperature that the gas outlet was taken out is enough high for follow-up stoving is effectual.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described, wherein the same components are denoted by the same reference numerals. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a perspective view of a gas heating box according to a possible embodiment of the present invention;

FIG. 2 is a front view of the gas heating cabinet of FIG. 1;

FIG. 3 is a left side view of the gas heating cabinet of FIG. 1;

FIG. 4 is a top view of the gas heating cabinet of FIG. 1;

fig. 5 is a top sectional view of the gas heating box of fig. 1.

Wherein the reference numerals in the figures correspond to: 1-air inlet, 2-box, 21-baffle, 22-communicating air flue, 23-heating cavity, 3-heating component, 4-air outlet, 5-outer protective cover, 6-connecting piece, 7-insulating layer, 8-temperature sensor, 9-outlet box and 91-PG joint.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the indicated device or structure must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention; also, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

In order to solve the problem that the built-in fan that leads to of fan and heater maintains the degree of difficulty big among the current drying equipment, this specification embodiment provides a drying equipment, including a gas heating box among this drying equipment, this gas heating box and fan set up separately independently, can be used for heating gas, and then use the gas after the heating as the hot-blast that the fan blew off, a follow-up drying process for among the drying equipment, it is effectual and efficient to heat, can strengthen the stoving effect, and finally promote the finished product quality of product.

Specifically, as shown in fig. 1-5 of the specification, the gas heating box includes a gas inlet 1, a gas outlet 4, a box body 2 with a cavity inside, and a plurality of heating assemblies 3 located in the cavity, where the gas inlet 1 and the gas outlet 4 are located on different side walls of the box body 2, respectively, and in this embodiment, as shown in fig. 1 of the specification, the gas inlet 1 and the gas outlet 4 are located on two adjacent side walls of the box body 2, respectively; in another possible embodiment of the present description, the air inlet 1 and the air outlet 4 may also be located on two opposite side walls of the box 2, i.e. two parallel side walls of the box 2, which is not limited in the present description, as long as the air flow path in the box 2 can extend over the entire cavity of the box 2, ensuring that the air stays in the box 2 for a sufficient time to raise the gas temperature to the desired temperature value.

Specifically, as shown in the top sectional view in fig. 5 of the specification, the plurality of heating assemblies 3 are uniformly arranged in the box body 2 to ensure that the temperatures at all positions in the box body 2 are equal, so that the temperature of the gas entering the box body 2 through the gas inlet 1 can be uniformly increased, and the temperature of the gas at the gas outlet 4 is uniform, which is beneficial to improving the subsequent drying effect; simultaneously, heating element 3 evenly sets up and also can avoid 2 different regions of box to be heated inequality, the box damage that the inconsistent degree of aging leads to after using for a long period of time can increase the utility model provides a gas heating box's life saves cost of maintenance.

Specifically, in the present embodiment, nine heating assemblies 3 are provided, every three heating assemblies 3 are arranged in parallel with one side wall of the box body 2, with the direction shown in fig. 5 as a reference, the distance between each heating assembly 3 and the adjacent heating assembly 3 in the transverse direction is equal, and similarly, the distance between each heating assembly 3 and the adjacent heating assembly 3 in the longitudinal direction is also equal, and the nine heating assemblies 3 are uniformly distributed in the box body 2 in a matrix shape as a whole, on one hand, in consideration of the high temperature to be raised by the gas, a large number of heating assemblies 3 are provided, so as to provide as much heat as possible for raising the temperature of the gas, so as to ensure that the gas can be raised to the temperature required by the drying equipment, and the reliability of the gas heating box is high; on the other hand, the cost of purchasing or assembling the heating assembly 3 is also considered, more heating assemblies 3 are not arranged to save the cost, the production efficiency of the gas heating box is improved, the maintenance cost of a part of the heating assemblies 3 is correspondingly reduced, and the economic benefit is maximized; in one possible embodiment of the present specification, when the required drying temperature is higher or the gas flow is larger, the number of the heating assemblies 3 may be set to be more than nine to provide more heat to meet the temperature increase requirement; in another possible embodiment of the present description, when the temperature increase requirement is small, the number of the heating assemblies 3 can be set to be less than nine to save cost and avoid waste of redundant heat; that is, the number of the heating assemblies 3 can be adjusted according to the actual heating requirement, so that the heat utilization rate and the cost of the gas heating box are optimized.

Specifically, the heating component 3 is a quartz heater, i.e., a non-metal heater; the quartz heater does not need a far infrared coating, has good spectral radiation matching absorption characteristic, does not deteriorate after long-term use, has excellent durability and high electrothermal conversion efficiency, can save 30 percent of energy compared with a common heating element, and has good energy-saving effect; meanwhile, the quartz heater has high working temperature, good high temperature resistance, can resist the high temperature of 800 ℃ at most, and has good safety performance when in use; the temperature selection range is wide, the heating device can be suitable for heating processes with different temperature requirements, and the applicability is good; therefore, the quartz heater is a clean heater with fast temperature rise, small thermal inertia, high temperature resistance, corrosion resistance, good thermochemical stability, long service life, high insulating strength and no pollution, no extra product is generated in the heating process to pollute the box body 2, the heated gas is clean and pollution-free, and the reduction of the quality of the dried product is avoided.

Specifically, as shown in fig. 5 of the specification, two partition plates 21 are disposed in the cavity of the box body 2, one end of each partition plate 21 is fixedly connected with the inside of the side wall of the box body 2, the other end of each partition plate 21 is not connected with the other side wall of the box body 2, but a communication air passage 22 is left for facilitating the flow of air, the whole cavity of the box body 2 is divided into three communicated heating cavities 23 by the two partition plates 21, the volume of each heating cavity 23 is equal, two adjacent heating cavities 23 are communicated with each other through the communication air passage 22, and in order to enable air to flow through as many areas of the box body 2 as possible, the maximum utilization of heat during temperature rise is ensured, and the two adjacent communication air passages 22 are respectively close to different side walls of the box body 2.

Specifically, in the present embodiment, the two partition plates 21 are arranged in parallel, and the two communicating air ducts 22 corresponding to the partition plates 21 are respectively close to the two parallel side walls of the box body 2, so that the three heating cavities 23 are divided into a continuous S-shaped structure by the partition plates 21, and meanwhile, three heating assemblies 3 are uniformly arranged in each heating cavity 23, so that the gas fully passes through the space where the heating assemblies 3 are located after entering the box body 2, the heat utilization rate is high, the heating efficiency is high, and the gas temperature-rising effect is good; based on the direction shown in fig. 5, after the gas enters the box body 2 through the gas inlet 1, the gas firstly enters the first heating cavity 23 located at the leftmost side, flows forwards through three of the heating assemblies 3 to be heated, enters the second heating cavity 23 located at the middle of the box body 2 through the first communicating gas passage 22, then continues to flow forwards, is further heated and heated by three of the heating assemblies 3 in the second heating cavity 23, then enters the third heating cavity 23 located at the rightmost side in the box body 2 through the second communicating gas passage 22, and after the final heating is performed by the last three of the heating assemblies 3, the gas temperature is raised to the temperature required for drying, the heated gas flows out through the gas outlet 4, and in three heating cavities 23, the flowing directions of the gas in every two adjacent heating cavities 23 are opposite, so that the gas is fully contacted with each heating assembly 3 through layer-by-layer heating, the heating component 3 has high heat utilization rate, the heating rate is also improved, and the stability and reliability of the temperature of the gas at the gas outlet 4 are ensured.

In addition, in other possible embodiments of the present description, the partition plate 21 may be provided in more than two pieces, so that the residence time of the gas in the case 2 is longer, the gas flow path is lengthened, and the gas temperature rise is more sufficient; for example, when the three partitions 21 are provided, assuming that the upper side wall of the box 2 is a first side and the lower side wall of the box 2 is a second side with reference to the direction shown in fig. 5, the three partitions 21 are arranged in parallel from left to right, the first partition 21 is fixedly connected to the second side, the first communicating duct 22 is located inside the first side, the second partition 21 is fixedly connected to the first side, the second communicating duct 22 is located inside the second side, the third partition 21 is fixedly connected to the second side, and correspondingly, the third communicating duct 22 is close to the first side, so that the cavity of the box 2 is divided into four heating chambers 23 of a continuous S-shape, thereby further ensuring sufficient heating and temperature rise of the gas.

Specifically, as shown in fig. 5, the air inlet 1 is communicated with one side of the first heating cavity 23 away from the communicating air duct 22 to ensure that the air can flow to the heating assembly 3 for heating, and does not directly enter the next heating cavity 23 through the communicating air duct 22, so that the heating efficiency is reduced and even the heating is disabled; based on the same consideration, the air outlet 4 is communicated with one side of the heating cavity 23 at the tail end far away from the communicating air channel 22, so that the air is ensured to flow through the heating assembly 3 in the last heating cavity 23 for heating, the heat utilization rate is high, and the heating effect is ensured.

Specifically, the outer shield 5 and the heat preservation layer 7 are further arranged on the periphery of the box body 2, wherein the side walls of the outer shield 5 and the side walls of the box body 2 are arranged in a one-to-one correspondence manner and are used for protecting the box body 2, a gap is reserved between the outer shield 5 and the box body 2, and the heat preservation layer 7 is uniformly filled in the gap between the box body 2 and the outer shield 5 so as to prevent heat in the heating cavity 23 from overflowing and reducing the heating efficiency and the gas temperature at the gas outlet 4; in one possible embodiment of the present description, the heat insulation layer 7 may preferably be heat insulation cotton, and the heat insulation effect is good.

Specifically, a plurality of connecting pieces 6 are arranged between the box body 2 and the outer protective cover 5, and the connecting pieces 6 are uniformly arranged along the outer side of the side wall of the box body 2 and are used for relatively fixedly connecting the outer protective cover 5 and the box body 2, so that the outer protective cover 5 and the box body 2 are prevented from shaking relatively, and the heating efficiency caused by accidental heat loss is reduced; in a possible embodiment of the present disclosure, the connecting member 6 may be a Z-shaped member, as shown in fig. 5, one end of the Z-shaped member is fixedly connected to the outer side of the box 2, and the other end of the Z-shaped member is fixedly connected to the inner side of the outer shield 5.

Specifically, as shown in fig. 2 and 4, a temperature sensor 8 is further disposed on the gas outlet 4 for monitoring the gas temperature of the gas outlet 4, on one hand, when the temperature monitored by the temperature sensor 8 is too low, a user can be reminded to control the heating assembly 3 to heat up or check whether the gas heating box is damaged due to a fault; on the other hand, temperature sensor 8 can also be connected with heating element 3 electricity, when temperature sensor 8 monitored the temperature too high, in time control heating element 3 stopped heating to prevent overheated phenomenon, the security performance is good.

In addition, it connects 91 still to set up outlet box 9 and PG at the top of outer guard shield 5 the utility model provides an used a plurality of heating element 3 in the gas heating case, then also many with the pencil that heating element 3 links to each other, outlet box 9 can conveniently arrange a large amount of pencil in order, keeps gas heating case clean and tidy, and PG connects 91 to concentrate the pencil, is convenient for control heating element 3 open and close.

According to the present embodiment, the present invention has the following advantages:

4. The heating assembly can work with the temperature sensor in a cooperative manner, so that the gas heating box is prevented from being overhigh in temperature and damaging the safety of the gas heating box and the whole drying equipment; meanwhile, the damage of the superheated gas to the quality of the subsequent drying product is also avoided.

While only certain embodiments of the present invention have been described and illustrated herein, it will be understood by those skilled in the art that various changes and modifications may be made, and any such modifications, equivalents and improvements are within the scope of the invention as claimed.

Claims

1. A gas heating box is characterized by comprising a gas inlet (1), a gas outlet (4), a box body (2) with a cavity inside and a plurality of heating components (3) positioned in the cavity, wherein the gas inlet (1) and the gas outlet (4) are respectively positioned on different side walls of the box body (2); still set up at least one baffle (21) in the cavity, the one end of baffle (21) with the lateral wall of box (2) is connected, the other end of baffle (21) with intercommunication air flue (22) have between another lateral wall of box (2), the cavity by heating chamber (23) of a plurality of intercommunications are separated into to baffle (21), adjacent two heating chamber (23) are passed through intercommunication air flue (22) are linked together, adjacent two intercommunication air flue (22) are close to respectively the different lateral walls of box (2).

2. A gas heating cabinet according to claim 1, characterized in that the heating element (3) is a quartz heater.

3. A gas heating cabinet according to claim 1, characterized in that a plurality of said heating modules (3) are arranged uniformly in said heating chamber (23).

4. A gas heating cabinet according to claim 1, wherein a plurality of said partitions (21) are arranged in parallel with each other, and a plurality of said heating chambers (23) are divided into a continuous S-shaped configuration by said partitions (21).

5. A gas heating cabinet according to claim 4, characterized in that the gas inlet (1) communicates with a side of the heating chamber (23) remote from the communicating gas duct (22), and the gas outlet (4) also communicates with a side of the other heating chamber (23) remote from the communicating gas duct (22).

6. A gas heating box according to claim 1, characterized in that an outer shield (5) is further disposed on the periphery of the box body (2), a gap is left between the outer shield (5) and the box body (2), and the side walls of the outer shield (5) and the side walls of the box body (2) are disposed in a one-to-one correspondence.

7. A gas heating cabinet according to claim 6, characterized in that a plurality of connecting pieces (6) are arranged between the cabinet (2) and the outer shield (5), and the connecting pieces (6) are used for relatively fixedly connecting the outer shield (5) and the cabinet (2).

8. A gas heating cabinet according to claim 6, characterized in that an insulating layer (7) is further arranged on the periphery of the cabinet body (2), and the insulating layer (7) is uniformly filled in the gap between the cabinet body (2) and the outer shield (5).

9. A gas heating cabinet according to claim 1, characterized in that the gas outlet (4) is provided with a temperature sensor (8), said temperature sensor (8) being adapted to monitor the gas temperature at the gas outlet (4).

10. Drying apparatus, characterized in that it comprises a gas heating cabinet according to any one of claims 1 to 9.