Device for diversion of quenching waste gas and diversion method thereof

Patent metadata

Field	Value
Publication number	US-11892237-B2
Application number	US-202017134610-A
Country	US
Kind code	B2
Filing date	Dec 28, 2020
Priority date	Jan 3, 2020
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

The invention provides device for diversion of quenching exhaust gas and diversion method, exhaust gas chamber is located at top of quenching chamber; quenching chamber is fixedly connected to exhaust gas chamber through partition; support plate in lifting assembly is fixedly connected to side of partition, motor in exhaust assembly is fixedly connected to slider in lifting assembly, two adjacent sides of quenching chamber are fixedly connected to lower surface of support plate through triangular support frame; sealing brushes are located on two adjacent sides of exhaust chamber, gas detector is located inside exhaust chamber on one side near the top, exhaust cylinder is located at center of upper surface of top of exhaust chamber, first end of slider support column and motor support seat are respectively located on upper surface of support plate, second end is fixedly connected with lower surface of baffle through cylindrical hole of slider.

First claim

What is claimed is:

1. A device for diversion of quenching exhaust gas, comprising a quenching chamber, an exhaust gas chamber, a lifting assembly and an exhaust assembly, wherein
the exhaust gas chamber is located at the top of the quenching chamber; the quenching chamber is fixedly connected to the exhaust gas chamber through a partition; a support plate in the lifting assembly is fixedly connected to a side of the partition, and a motor in the exhaust assembly is fixedly connected to a slider in the lifting assembly;
the quenching chamber includes a quenching chamber door, an induction coil, a workpiece, a base and a triangular support frame; the quenching chamber door is located on one side of the quenching chamber; one end surface of the quenching chamber door is fixedly connected to a side surface of the quenching chamber; the induction coil and the workpiece are concentric and not in contact; the workpiece is located inside the quenching chamber; an upper surface of the base is fixedly connected to a lower surface of the bottom of the quenching chamber; an upper surface of the top of the quenching chamber and a lower surface of the partition are fixedly connected, and two adjacent sides of the quenching chamber are fixedly connected to a lower surface of the first support plate and a lower surface of the second support plate through the triangular support frame respectively;
the exhaust gas chamber includes an exhaust gas chamber door, a sealing brush, a partition, an exhaust cylinder and a gas detector; the exhaust gas chamber door is located on one side of the exhaust gas chamber; one end surface of the exhaust gas chamber door and one side surface of the exhaust gas chamber are fixedly connected; the partition is provided with a cylindrical through-hole at a position corresponding to the workpiece, a side corner of the partition is provided with a small opening, a bottom surface of the bottom of the exhaust gas chamber and an upper surface of the partition are fixedly connected, the sealing brush is located on two adjacent sides of the exhaust gas chamber, and the exhaust cylinder is located at the center of the upper surface of the top of the exhaust gas chamber, the gas detector is located inside the exhaust chamber, on one side near the top;
the exhaust assembly includes a Z-axis exhaust fan, a Y-axis exhaust fan, an X-axis exhaust fan, a third motor, a fourth motor, and a fifth motor; an input end of the X-axis exhaust fan is fixedly connected to an output end of the third motor through the sealing brush, a housing of the third motor is fixedly connected to the middle of a first slider, and an input end of the Y-axis exhaust fan is fixedly connected to an output end of the fourth motor through the sealing brush, a housing of the fourth motor is fixedly connected to the middle of a second slider, an input end of the Z-axis exhaust fan is fixedly connected to an output end of the fifth motor, a housing of the fifth motor is fixedly connected to a lower surface of the top of the exhaust chamber; and
the lifting assembly includes a first baffle, a first slider support column, a first screw, a first slider, a first motor support seat, and a first support plate, a second baffle, a second slider support column, a second screw, a second slider, a second motor support seat, a second support plate, a first motor and a second motor; a first end of the first slider support column and the first motor support seat are respectively located on an upper surface of the first support plate, and a first end of the first screw is fixedly connected to the first motor through the first motor support seat, a first end of the second slider support column and the second motor support seat are respectively located on an upper surface of the second support plate, and a first end of the second screw is fixedly connected to the second motor through the second motor support seat; a second end of the first slider support column and a second end of the second slider support column are fixedly connected to a lower surface of the first baffle and the lower surface of the second baffle through the cylindrical hole of the first slider and the cylindrical hole of the second slider respectively; a second end of the first screw and a second end of the second screw are fixedly connected to a lower surface of the first baffle and a lower surface of the second baffle through a threaded hole of the first slider and a threaded hole of the second slider respectively.

2. The device for diversion of quenching exhaust gas according to claim 1 , wherein a thickness of the first support plate, a thickness of the second support plate, and a thickness of the partition are equal.

3. The device for diversion of quenching exhaust gas according to claim 1 , wherein axes of the X-axis exhaust fan and the Y-axis exhaust fan are parallel to the upper surface of the partition, and an axis of the Z-axis exhaust fan is perpendicular to the upper surface of the partition.

4. The device for diversion of quenching exhaust gas according to claim 1 , wherein cross-sections of the first slider and the second slider have a “T” structure; one side surface of the first slider and one side surface of the second slider are respectively provided with a cylindrical hole and a threaded hole; a diameter of the cylindrical hole of the first slider and a diameter of the cylindrical hole of the second slider are respectively equal to an outer diameter of the first slider support column and an outer diameter of the second slider support column; the threaded hole of the first slider and the threaded hole of the second slider are threaded with the first screw and the second screw, respectively.

5. The device for diversion of quenching exhaust gas according to claim 1 , wherein an axis of the first slider support column and an axis of the first screw are parallel to each other, and an axis of the second slider support column and an axis of the second screw are parallel to each other; the first baffle and the first support plate are parallel to each other, and the second baffle and the second support plate are parallel to each other.

6. A diversion method using the device for diversion of quenching exhaust gas according to claim 1 , comprising the following steps:
S 1 , after the exhaust gas is produced by quenching the workpiece, the third motor connected to the X-axis exhaust fan, the fourth motor connected to the Y-axis exhaust fan and the fifth motor connected to the Z-axis exhaust fan are started so that they start running at a power of 2 kw respectively;
S 2 , start the gas detector in machine vision to monitor the concentration of exhaust gas discharged from the quenching chamber to the exhaust chamber in real time;
S 3 , according to the exhaust gas concentration monitored by the gas detector, the power of the third motor connected to the X-axis exhaust fan and the fourth motor connected to the Y-axis exhaust fan is adjusted in real time, and the power of the X-direction exhaust fan and Y-direction exhaust fan is changed in real time by comparison of the X-direction and Y-direction exhaust gas concentrations in the exhaust gas chamber by the gas detector, and the power adjustment range of the X direction exhaust fan and the Y direction exhaust fan is 2˜2.5 kw;
S 31 , when the gas detector detects that the exhaust gas concentration of the negative half axis of the X-axis is relatively large, the power of the third motor connected to the X-axis exhaust fan is increased, and then the speed of the X-axis exhaust fan increases; the power of the fourth motor connected to the Y-axis exhaust fan remains unchanged, and then the speed of the Y-axis exhaust fan remains unchanged; the exhaust gas starts to move from the negative half axis of the X-axis with high concentration to the posit

Assignees

• Univ Yanshan

Inventors

• Han Yi
• Li Dongyu
• Xiao Yao

Classifications

• F27D17/302 Primary

  Constructional details of ancillary components, e.g. waste gas conduits or seals · CPC title

• F27D17/002 Primary

  Mechanical Engineering · mapped topic

• F27D2001/1891

  Doors for separating two chambers in the furnace · CPC title

• F27D2007/045

  Fans · CPC title

• F27D2009/0089

  Quenching · CPC title