Magnetoelectric rotary hot air system

Abstract

The utility model relates to the technical field of coating drying, and discloses a magnetoelectric rotary hot air system, which comprises a magnetoelectric heating part and a centrifugal fan, an iron pipe is sleeved in the magnetoelectric heating part, a flow guide soaking mechanism is arranged in the iron pipe, and the flow guide soaking mechanism is communicated with an air outlet of the centrifugal fan. The spiral pieces are adopted in the iron pipe to replace an original wave-shaped channel, the spiral pieces are evenly distributed in an overlapped mode and are matched with the spiral pieces to be directly connected with the middle hollow connecting shaft and the inner wall of the iron pipe to form a plurality of sets of independent spiral spaces, sufficient heat absorption is achieved in the spiral spaces in cooperation with input air volume, and the heat exchange efficiency is improved. According to the magnetoelectric rotary hot air system, uniform temperature absorption is achieved, the heat utilization rate is greatly increased, fully absorbed heat is guided out to a drying area, efficient treatment of coating drying is achieved, and the magnetoelectric rotary hot air system actually provides stable, efficient and uniform hot air and is high in heat utilization rate and good in use effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coating drying, more specifically, the utility model relates to a magnetoelectric rotary hot -blast system. BACKGROUND

[0002] Coating drying refers to in the coating process, through heating and air flow means such as accelerating the drying, curing process of coating, it is an important link in the coating process, the purpose is to ensure that the coating reaches good adhesion, durability, appearance quality and other physical properties, usually adopts electric heating drying, biomass combustion drying and magnetoelectric rotary hot -blast drying.

[0003] In the prior art magnetoelectric rotary hot -blast drying process, the fan is usually used to input the air volume into the cylindrical iron pipe, the coil is electrified to generate a magnetic field and act on the inner wall of the iron pipe, the iron pipe is heated, and the heat is taken away through the air flow circulation and introduced into the drying area, however, the current iron pipe air outlet adopts a wave-shaped air outlet, the heat carried out is uneven, the internal air volume directly enters and is exported, the air volume absorbs limited heat, the temperature of the hot air is not enough everywhere, the uniformity is poor, and the use effect is poor. SUMMARY

[0004] In order to overcome the defects of the prior art, the utility model provides a magnetoelectric rotary hot -blast system, which has the advantages of uniform heat exchange and improved heat absorption.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a magnetoelectric rotary hot -blast system, including magnetoelectric heating part and centrifugal fan, the inside of magnetoelectric heating part is equipped with iron pipe, the inside of iron pipe is equipped with flow guide heat equalizing mechanism, flow guide heat equalizing mechanism is connected with the air outlet of centrifugal fan,

[0006] The flow guide heat equalizing mechanism includes an intermediate shaft and a spiral sheet, the spiral sheet is fixed on the outer surface of the intermediate shaft, and the spiral sheet is fixedly connected to the inner wall of the iron pipe.

[0007] Preferably, the magnetoelectric heating part includes a mounting box and a coil, the coil is wound on the outer surface of the iron pipe, the coil is electrically connected with the external power supply, the inner wall temperature of the iron pipe is 500 DEG C, the diameter of the iron pipe is 30 cm, and the thickness is 4 mm, the height of the iron pipe is 1.2 m.

[0008] Preferably, the number of spiral sheets is three, the three spiral sheets are in three interlaced shapes, and are uniformly distributed at 120 degrees.

[0009] Preferably, the intermediate shaft is a hollow pipe, and the diameter of the intermediate shaft is 6-8 cm, and the length of the intermediate shaft is less than the length of the iron pipe.

[0010] Preferably, the inner part of the iron pipe is respectively provided with a mixing section and an air inlet section, the mixing section and the air inlet section are symmetrically distributed on both sides of the flow guide heat equalizing mechanism, the mixing section is located at the outlet end of the iron pipe, and the air inlet section is located at the inlet end of the iron pipe.

[0011] Preferably, the air inlet end of the iron pipe is fixedly connected with a mounting plate, the mounting plate is fixed at the air outlet end of the centrifugal fan through bolts, and the mounting plate is in communication with the air outlet of the centrifugal fan.

[0012] Preferably, the interval length of the mixing section is 20 cm.

[0013] Preferably, the intermediate shaft is an iron rod, the diameter of the iron rod is 6 cm, and the length of the iron rod is 1 m.

[0014] Preferably, the angle of the spiral piece is 30°, the pitch is 35 cm, the height of the spiral piece is sufficient to connect the inner wall of the iron pipe, the number of the spiral pieces located on the outer side of the iron rod is four, the interval is the same, two rows of small holes with a diameter of 5 mm are arranged at the thickness of 20 cm of the spiral piece, the interval of the two groups of small holes is 2 cm, and the two rows of small holes are in the middle of the spiral piece.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The utility model discloses a spiral piece is arranged in the iron pipe, and the spiral piece is directly connected with the intermediate hollow connecting shaft and the inner wall of the iron pipe, so that a plurality of independent spiral spaces are formed, the input air volume is fully absorbed in the spiral spaces, the temperature is uniformly absorbed, the heat utilization rate is greatly improved, the fully absorbed heat is guided to the drying area, the efficient treatment of coating and drying is realized, the magnetic electric rotary heat air system provides stable, efficient and uniform hot air, the heat utilization rate is high, and the use effect is good.

[0017] 2. The utility model discloses a 20cm mixing section is arranged in the iron pipe, after a plurality of spiral spaces are used to absorb heat, the disturbance of the plurality of spiral air volumes at the outlet end of the spiral piece can realize full mixing in the mixing section, further improve the mixing treatment of the plurality of air volumes, improve the uniformity of the heat of the uniform heat air, further guarantee the heat uniformity of the air volume at the outlet end, and improve the uniformity of subsequent coating and drying. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a sectional view schematic view of the iron pipe and the mounting box of the utility model;

[0020] Figure 3 It is the explosion schematic view of the helical fin of the utility model;

[0021] Figure 4 It is the end schematic view of the iron pipe of the utility model;

[0022] Figure 5 It is the installation schematic view of the iron pipe and the coil of the utility model;

[0023] Figure 6 It is the installation schematic view of the helical fin and the iron pipe of the utility model.

[0024] In the drawing: 1, installation box; 2, iron pipe; 3, centrifugal fan; 4, intermediate shaft; 5, helical fin; 6, coil; 7, mounting plate; 8, mixing interval; 9, air inlet interval. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] As Figures 1 to 6 Indicated, the utility model provides a kind of magnetoelectric heat air system, including magnetoelectric heating part and centrifugal fan 3, the inside of magnetoelectric heating part is equipped with iron pipe 2, the inside of iron pipe 2 is equipped with flow guide heat equalizing mechanism, flow guide heat equalizing mechanism is communicated with the air outlet of centrifugal fan 3, flow guide heat equalizing mechanism includes intermediate shaft 4 and helical fin 5, helical fin 5 is fixed on the outer surface of intermediate shaft 4, and helical fin 5 is fixedly connected on the inner wall of iron pipe 2.

[0027] Wherein, magnetoelectric heating part includes installation box 1 and coil 6, coil 6 is around and is connected on the outer surface of iron pipe 2, coil 6 is electrically connected with external power supply, the inner wall temperature of iron pipe 2 is 500 DEG C, the diameter of iron pipe 2 is 30cm, and thickness is 4mm, the height of iron pipe 2 is 1.2m.

[0028] By utilizing coil 6 and external power supply connection, the generation of magnetic field after power on is realized, the magnetoelectric effect of iron pipe is realized, and the temperature rise is completed.

[0029] Wherein, the number of helical fin 5 is three, three helical fins 5 are three interlaced, and are evenly distributed at 120 °.

[0030] Through multiple helical fins 5 form multiple helical channels, separate internal air volume, expand heat exchange area, improve the total amount of absorbed heat, and improve the effect of heat exchange uniformity.

[0031] In the embodiment 1, the intermediate shaft 4 is a hollow tube with a diameter of 6-8 cm, the length of the intermediate shaft 4 is less than the length of the iron pipe 2, the iron pipe 2 is internally provided with a mixing section 8 and an air inlet section 9, the mixing section 8 and the air inlet section 9 are symmetrically distributed on the two sides of the flow guiding and heat equalizing mechanism, the mixing section 8 is located at the outlet end of the iron pipe 2, the air inlet section 9 is located at the inlet end of the iron pipe 2, and the length of the mixing section 8 is 20 cm.

[0032] The intermediate shaft 4 is used for supporting the spiral blades 5, the length is controlled, the mixing section 8 and the air inlet section are reserved, and the synchronous mixing after the heat exchange is replaced.

[0033] The air inlet end of the iron pipe 2 is fixedly connected with a mounting plate 7, the mounting plate 7 is fixed at the air outlet end of the centrifugal fan 3 through bolts, and communicates with the air outlet of the centrifugal fan 3.

[0034] In the embodiment 2, the intermediate shaft 4 is an iron rod with a diameter of 6 cm, the length of the iron rod is 1 m, the angle of the spiral blade 5 is 30°, the pitch of the spiral blade 5 is 35 cm, the height of the spiral blade 5 is sufficient to connect the inner wall of the iron pipe 2, the number of the spiral blades 5 located on the outer side of the iron rod is four, the spacing is the same, two rows of small holes with a diameter of 5 mm are arranged on the thickness of 20 cm of the spiral blade 5 (not shown in the figure), the spacing of the two groups of small holes is 2 cm, and the two rows of small holes are in the middle of the spiral blade 5.

[0035] The small holes are additionally arranged, the turbulence of the actually blown hot air is increased, the heat is further blown away, and the efficiency is improved.

[0036] The ATLAB system modeling and data driving optimization are used to balance the air resistance, the air pressure, the heat conduction efficiency, establish a heating device control model, the CFD simulation is used, and then the experiment is verified, and the heat efficiency is further improved.

[0037] The working principle and the use process of the utility model are as follows: in the use process, the external power supply mechanism is powered on to the coil 6, the magnetic field generated by the coil 6 is used for generating eddy current in the iron pipe 2, the temperature of the inner wall of the iron pipe 2 is increased, and the temperature is increased to 500 DEG C, the centrifugal fan 3 is started, the centrifugal fan 3 inputs the air volume into the iron pipe 2 in communication, and the air volume is mixed into the spiral space of each group of spiral blades 5 along the air inlet section 9, along with the air volume flowing along the spiral space of the spiral blade 5, the temperature of the spiral blade 5 and the inner wall of the iron pipe 2 is absorbed, and the temperature is fully absorbed during the spiral flow, the hot air after absorbing the heat is blown out along the three groups of spiral spaces, is fully mixed in the mixing section 8, and then is guided out to the coating drying section along the outlet end of the iron pipe 2, and the workpiece is dried by hot air.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetoelectric swirling hot air system, comprising a magnetoelectric heating section and a centrifugal fan (3), characterized in that: The magnetoelectric heating section is fitted with an iron pipe (2), and the iron pipe (2) is equipped with a flow guiding and heat equalization mechanism. The flow guiding and heat equalization mechanism is connected to the air outlet of the centrifugal fan (3). The heat-dissipating and heat-equalizing mechanism includes an intermediate shaft (4) and a spiral blade (5). The spiral blade (5) is fixed on the outer surface of the intermediate shaft (4) and is fixedly connected to the inner wall of the iron pipe (2).

2. The magnetoelectric swirling hot air system according to claim 1, characterized in that: The magnetoelectric heating section includes a mounting box (1) and a coil (6). The coil (6) is wound around the outer surface of the iron pipe (2). The coil (6) is electrically connected to an external power supply. The inner wall temperature of the iron pipe (2) is 500°C. The diameter of the iron pipe (2) is 30cm and the thickness is 4mm. The height of the iron pipe (2) is 1.2m.

3. The magnetoelectric swirling hot air system according to claim 1, characterized in that: The number of the spiral blades (5) is three, and the three spiral blades (5) are arranged in a three-strand overlapping shape and are evenly distributed at 120°.

4. The magnetoelectric swirling hot air system according to claim 1, characterized in that: The intermediate shaft (4) is a hollow tube with a diameter of 6-8 cm and a length less than that of the iron pipe (2).

5. The magnetoelectric swirling hot air system according to claim 1, characterized in that: The iron pipe (2) is provided with a mixing zone (8) and an air inlet zone (9) inside. The mixing zone (8) and the air inlet zone (9) are symmetrically distributed on both sides of the heat dissipation and heat equalization mechanism. The mixing zone (8) is located at the outlet end of the iron pipe (2), and the air inlet zone (9) is located at the inlet end of the iron pipe (2).

6. The magnetoelectric swirling hot air system according to claim 1, characterized in that: The air inlet end of the iron pipe (2) is fixedly connected to an installation plate (7), which is fixed to the air outlet end of the centrifugal fan (3) by bolts and is connected to the air outlet of the centrifugal fan (3).

7. The magnetoelectric swirling hot air system according to claim 5, characterized in that: The length of the mixed interval (8) is 20cm.

8. The magnetoelectric swirling hot air system according to claim 1, characterized in that: The intermediate shaft (4) is an iron rod with a diameter of 6 cm and a length of 1 meter.

9. A magnetoelectric swirling hot air system according to claim 8, characterized in that: The spiral blade (5) has an angle of 30° and a pitch of 35cm. The height of the spiral blade (5) is sufficient to connect to the inner wall of the iron pipe (2). There are four spiral blades (5) located on the outside of the iron rod, and the spacing is the same. Two rows of small holes with a diameter of 5mm are opened at a thickness of 20cm on the spiral blade (5). The spacing between the two sets of small holes is 2cm. The two rows of small holes are in the middle of the spiral blade (5).

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