CN212299887U - Magnetic core sintering exhaust system - Google Patents
Magnetic core sintering exhaust system Download PDFInfo
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- CN212299887U CN212299887U CN202020905306.2U CN202020905306U CN212299887U CN 212299887 U CN212299887 U CN 212299887U CN 202020905306 U CN202020905306 U CN 202020905306U CN 212299887 U CN212299887 U CN 212299887U
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Abstract
A magnetic core sintering exhaust system belongs to the technical field of exhaust systems. The device is characterized by comprising an air guide cover, a main exhaust pipeline, a flue gas treatment device and a main exhaust fan; the air guide cover is fixed at the air inlet of the main exhaust pipeline, the air exhaust branch pipe of the variable-frequency exhaust fan is covered by the air guide cover, an air supplementing gap is formed between the air exhaust branch pipe and the air guide cover, the main exhaust pipeline is communicated with the smoke treatment device, and the smoke treatment device is connected with the main exhaust fan. The wind scooper provides a certain pressure buffer space between the main exhaust pipeline and the exhaust branch pipe, so that the unchanged pressure from the main exhaust pipeline can not directly act on each independent space when the pressure is remained or insufficient. The problem that independent variable-frequency exhaust systems under the same main exhaust system are easy to influence each other, the frequency of the main exhaust fan is difficult to fix, and the temperature of the independent space to which each independent variable-frequency exhaust fan belongs is accurately controlled by each independent variable-frequency exhaust fan is effectively solved. The structure is easy to modify, and finally, the temperature control of each independent space is easier to realize.
Description
Technical Field
A magnetic core sintering exhaust system belongs to the technical field of exhaust systems.
Background
In industrial production such as a vacuum sintering furnace and the like, an independent variable frequency exhaust fan is often installed in an independent space for controlling the temperature of the independent space, and the temperature in the independent space is ensured to change according to a set curve by controlling the exhaust power of the variable frequency exhaust fan. Meanwhile, the smoke discharged by the variable-frequency exhaust fans in the independent spaces can be discharged through the fixed-frequency large-displacement main exhaust fan of the main exhaust system after the smoke enters the main exhaust system to be processed and qualified.
Referring to fig. 1, a magnetic core sintering exhaust system for sintering magnetic cores by using a plurality of sintering furnaces comprises a main exhaust duct 2, a flue gas treatment device 3, a main exhaust fan 4, a variable frequency exhaust fan 5, a first sintering furnace 6, a second sintering furnace 7, a third sintering furnace 8, a partition wall 9 and an exhaust branch pipe 10. Because the large-discharge-capacity main exhaust fan 4 of the main exhaust system needs to continuously exhaust air at rated power, the sintering furnaces in the same exhaust system are different in drawing force due to different distances from the main exhaust fan 4, namely: the third sintering furnace 8 closest to the main exhaust fan 4 receives the greatest suction force, and the first sintering furnace 6 farthest from the main exhaust fan 4 receives the least suction force. This results in that when the temperature in a certain sintering furnace needs to be accurately controlled, the temperature of other sintering furnaces changes because the power of the main exhaust fan is unchanged; particularly, when the three sintering furnaces need to change the temperature at the same time, the third sintering furnace receives the largest drawing force, the temperature in the third sintering furnace is reduced fastest, and the temperature reduction speeds of the other sintering furnaces are different, so that the three sintering furnaces are difficult to change according to the set temperature curve at the same time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the defects of the prior art are overcome, and the magnetic core sintering exhaust system is provided, so that the exhaust of an independent space is not influenced by an air inlet pipe of a flue gas treatment device, particularly the distance between the independent space and a main exhaust fan, and the exhaust volume of a variable frequency fan is changed according to a set value.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a magnetic core sintering exhaust system which characterized in that:
comprises a wind scooper, a main exhaust pipeline, a flue gas treatment device and a main exhaust fan; the air outlet of the air exhaust branch pipe provided with the variable-frequency exhaust fan is arranged in the air guide cover and fixed at the air inlet of the main exhaust pipeline, an air supplementing gap is arranged between the air exhaust branch pipe and the air guide cover, the main exhaust pipeline is communicated with a flue gas treatment device, the flue gas treatment device is connected with a main exhaust fan, and the main exhaust pipeline penetrates through the partition wall and is connected with the flue gas treatment device on the outer side.
Because the high-power main exhaust fan who decides frequently will last the work, consequently the pressure in the main exhaust duct is unchangeable, utilizes the utility model discloses an air guide cover can make the air intake of a main exhaust duct of all air exhaust branch's air outlet sharing to this, does not have the problem far and near apart from main exhaust fan, and each independent space can both realize temperature variation with the temperature curve who sets for.
On the other hand, when the total pressure provided by the variable-frequency exhaust fans of all the exhaust branch pipes is smaller than the pressure in the main exhaust pipeline, the air guide cover sucks the gas from the outside of the main exhaust pipeline for compensating the pressure through the air supplementing gap, so that the pressure of the main exhaust fan is not directly acted on each variable-frequency small fan to force the temperature in each independent space to be influenced; when the total pressure provided by the variable-frequency exhaust fans of all the exhaust branch pipes is greater than the pressure in the main exhaust pipeline, the air can be temporarily exhausted into the air guide cover through the air supplementing gap, and the air cannot enter other independent spaces or influence other variable-frequency exhaust fans to further influence the temperature of other independent spaces.
Preferably, the wind scooper is in a horn shape, and the diameter of the wind scooper is gradually increased along the direction close to the exhaust branch pipe. The trumpet shape can give the smoke buffer space from the air outlet to the maximum extent, and escape is prevented.
The air outlets of the plurality of exhaust branch pipes are arranged in the same air guide cover, and each exhaust branch pipe is connected with one sintering furnace.
The main exhaust pipeline is provided with a plurality of air scoops, each air scoops corresponds to one exhaust branch pipe, and each exhaust branch pipe is connected with one sintering furnace.
Preferably, the wind scooper respectively covers a single exhaust branch pipe, and each exhaust branch pipe is connected with a sintering furnace. Each exhaust branch pipe is provided with an independent air guiding cover to be communicated with the main exhaust pipeline, so that the relative independence between each exhaust branch pipe and an independent space is enhanced, and the possibility of mutual influence is further reduced.
Preferably, the exhaust system further comprises a partition wall, and the main exhaust duct passes through the partition wall and is connected with the outer flue gas treatment device. Because main exhaust duct no longer through the branch pipe of airing exhaust with each independent space connection fixed, the partition wall except can with processing system and independent space separate, can also effectual fixed main exhaust duct, noise reduction and reduction potential safety hazard.
Preferably, the vertical distance between the lower edge of the air guide cover and the upper edge of the air outlet of the exhaust branch pipe is 5-10 cm. Too short a vertical distance gives the flue gas a buffer space that may be insufficient to cause escape, and too long wastes material.
Compared with the prior art, the utility model discloses the beneficial effect who has is: a certain buffer space is provided for the matching of the main exhaust pipeline and the exhaust branch pipe, and the excessive or insufficient pressure provided by the main exhaust pipeline relative to the exhaust branch pipe cannot directly act on the exhaust branch pipe to influence the temperature of an independent space; the possibility that the smoke and the temperature are transmitted to other independent spaces when a certain variable-frequency exhaust fan suddenly increases the pressure is prevented; the independent space controlled by each variable-frequency exhaust fan can reach higher or lower temperature simultaneously without accurately adjusting the frequency of the main exhaust fan, frequent revision is carried out, and the difficulty of controlling the temperature is greatly reduced.
Drawings
FIG. 1 is a schematic view of a prior art magnetic core sintering exhaust system.
Fig. 2 is a schematic view of an exhaust system according to embodiment 1 of the present invention.
Fig. 3 is a schematic view of an exhaust system according to embodiment 2 of the present invention.
Fig. 4 is a schematic view of an exhaust system according to embodiment 3 of the present invention.
The device comprises an air guide cover 1, a main exhaust pipeline 2, a flue gas treatment device 3, a main exhaust fan 4, a variable frequency exhaust fan 5, a first sintering furnace 6, a second sintering furnace 7, a third sintering furnace 8, a partition wall 9, an exhaust branch pipe 10 and a main pipeline air guide cover 11.
Detailed Description
Fig. 3 is a preferred embodiment of the present invention, which will be further described with reference to fig. 2 to 3.
Example 1
As shown in fig. 2, the present embodiment is provided with a first sintering furnace 6, a second sintering furnace 7, and a third sintering furnace 8. The magnetic core sintering exhaust system comprises an air guide cover 1, a main exhaust pipeline 2, a flue gas treatment device 3 and a main exhaust fan 4; an air outlet of an air exhaust branch pipe 10 provided with a variable-frequency exhaust fan 5 is arranged in an air guide cover 1 and fixed at an air inlet of a main exhaust pipeline 2, an air supplementing gap is arranged between the air exhaust branch pipe 10 and the air guide cover 1, the main exhaust pipeline 2 is communicated with a flue gas treatment device 3, the flue gas treatment device 3 is connected with a main exhaust fan 4, and the main exhaust pipeline 2 penetrates through a partition wall 9 to be connected with the flue gas treatment device 3 on the outer side. The wind scooper 1 is in a trumpet shape, wherein the air outlets of a plurality of exhaust branch pipes 10 are arranged in one wind scooper 1.
When the three independent sintering furnaces produce the magnetic cores, the power of the flue gas exhausted from the independent variable-frequency exhaust fan 5 is frequently and synchronously changed, so that the temperature in the sintering furnaces synchronously rises or falls according to a set curve. By utilizing the wind scooper 1, which is equivalent to enabling the wind outlets of all the wind exhaust branch pipes 10 to share the wind inlet of the main wind exhaust pipeline 2, the problem of distance from the main wind exhaust machine 4 does not exist, no matter the first sintering furnace 6 farthest from the main wind exhaust machine 4 or the second sintering furnace 7 and the third sintering furnace 8 close to the main wind exhaust machine all receive the same suction force, each independent space can realize temperature change by a set temperature curve, and meanwhile, when the wind exhaust power of the variable-frequency wind exhauster 5 of each sintering furnace is small, the temperature in the sintering furnace can still not be reduced due to the influence of the suction force provided by the main wind exhaust machine 4.
Example 2
As shown in fig. 3, a plurality of wind scoopers 1 are disposed on the main exhaust duct 2, each wind scooper 1 corresponds to one exhaust branch pipe 10, each exhaust branch pipe 10 is connected to one sintering furnace, and an air outlet of each exhaust branch pipe 10 is disposed in the wind scooper 1.
Although each exhaust branch pipe 10 is still different from the main exhaust fan 4, when all the variable-frequency exhaust fans 5 work according to the set same power curve, because the air guide covers 1 are arranged on the exhaust branch pipes 10 which are close to the main exhaust fan 4, air can be sucked from the air supply gaps, the air can not be influenced by the suction force different from other sintering furnaces, and the temperature of all the sintering furnaces can be changed according to the set same temperature curve.
Example 3
As shown in fig. 4, the main exhaust duct 2 on the side of the flue gas treatment device 3 outside the partition wall is disconnected and divided into two sections, namely the main exhaust duct 2 and the air inlet duct of the flue gas treatment device 3, a main duct wind scooper 11 is arranged on the air inlet of the air inlet duct of the flue gas treatment device 3, and the air outlet of the main exhaust duct 2 is arranged in the wind scooper 1.
When the total pressure provided by all the variable-frequency exhaust fans 5 is smaller than the suction force of the main exhaust fan 4, air can be supplemented through the main pipeline air guide cover 11, so that all the sintering furnaces can reach a lower set temperature at the same time.
All the above embodiments can realize the effect of centralized treatment and exhaust of flue gas by the sintering furnaces, and each single sintering furnace can realize temperature change according to a set temperature curve, and all the sintering furnaces can synchronously realize temperature change according to the set temperature curve.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a magnetic core sintering exhaust system which characterized in that: comprises an air guide cover (1), a main exhaust duct (2), a flue gas treatment device (3) and a main exhaust fan (4); an air outlet of an air exhaust branch pipe (10) provided with a variable-frequency exhaust fan (5) is arranged in an air guide cover (1), the air guide cover (1) is fixed at an air inlet of a main exhaust pipeline (2), an air supplementing gap is arranged between the air exhaust branch pipe (10) and the air guide cover (1), the main exhaust pipeline (2) is communicated with a smoke treatment device (3), and the smoke treatment device (3) is connected with a main exhaust fan (4).
2. The magnetic core sintered exhaust system of claim 1, wherein: the wind scooper (1) is horn-shaped, and the diameter of the wind scooper (1) is gradually increased along the direction close to the exhaust branch pipe (10).
3. The magnetic core sintered exhaust system of claim 1, wherein: the air outlets of the plurality of exhaust branch pipes (10) are arranged in the same air guide cover (1), and each exhaust branch pipe (10) is connected with one sintering furnace.
4. The magnetic core sintered exhaust system of claim 1, wherein: the main exhaust duct (2) is provided with a plurality of air guiding covers (1), each air guiding cover (1) corresponds to one exhaust branch pipe (10), and each exhaust branch pipe (10) is connected with one sintering furnace.
5. The magnetic core sintered exhaust system of claim 1, wherein: the device also comprises a partition wall (9), and the main exhaust pipeline penetrates through the partition wall (9) to be connected with the outer flue gas treatment device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020905306.2U CN212299887U (en) | 2020-05-26 | 2020-05-26 | Magnetic core sintering exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020905306.2U CN212299887U (en) | 2020-05-26 | 2020-05-26 | Magnetic core sintering exhaust system |
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| Publication Number | Publication Date |
|---|---|
| CN212299887U true CN212299887U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020905306.2U Active CN212299887U (en) | 2020-05-26 | 2020-05-26 | Magnetic core sintering exhaust system |
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|---|---|
| CN (1) | CN212299887U (en) |
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2020
- 2020-05-26 CN CN202020905306.2U patent/CN212299887U/en active Active
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