Polishing device for inner pipe abutted seams of rapid-cooling heat exchanger
A technology for quenching heat exchangers and inner tubes, which is applied in the direction of grinding automatic control devices, grinding machines, and grinding machine parts, etc., and can solve the problems of difficult grinding and long through holes.
Inactive Publication Date: 2014-11-19
THE CHALLENGE PETROCHEM MACHINERY CORP
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Problems solved by technology
If the length of the inner tube is longer, it needs to be spliced by two sections of tubes, and the seam between the two sections of the spliced tubes needs to be welded. Since the inner tube used in the quenching heat exchanger requires a higher inner hole finish, therefore, It is necessary to grind and polish the joints. Due to the relatively small diameter of the inner tube and the long through hole, it is difficult to polish
Method used
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[0030] The present application is further described in conjunction with the following examples.
[0031] The specific implementation of the quenching heat exchanger inner pipe seam grinding device of the present application, such as figure 1 and figure 2 As shown, it includes: a support mechanism, a grinding mechanism, a propulsion mechanism, a driving travel mechanism, and a visual control device.
[0032] Wherein the support mechanism is placed in the inner pipe 2 along the cantilever end of the inner pipe 2; head 4, the pneumatic grinder 5 is connected to the support mechanism through the hinge fulcrum 6, the end of the pneumatic grinder 5 away from the grinding head 4 is provided with a position adjustment mechanism 7, and the position adjustment mechanism 7 is fixed on The supporting mechanism adopts a simple lever principle to realize that the pneumatic grinder 5 can rotate around the hinge fulcrum 6 within a certain range under the driving force of the position adju...
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The invention discloses a polishing device for inner pipe abutted seams of a rapid-cooling heat exchanger. The polishing device comprises a supporting mechanism, a polishing mechanism, a propelling mechanism, an advance driving mechanism and a visual control device, wherein the supporting mechanism is arranged in an inner pipe along the cantilever end of the inner pipe; the polishing mechanism comprises a pneumatic polisher, a polishing head is mounted on the pneumatic polisher, the pneumatic polisher is connected to the supporting mechanism through a hinged supporting point, a position regulation mechanism is arranged at the end, away from the polishing head, of the pneumatic polisher, and the position regulation mechanism is fixed to the supporting mechanism; one end of the propelling mechanism is connected with the supporting mechanism; the advance driving mechanism is connected with the other end of the propelling mechanism and is in drive connection with the supporting mechanism through the propelling mechanism; the inner pipe rotates under the action of external force to drive the polishing mechanism to polish the inner pipe abutted seams. Compared with the prior art, the polishing device can be rapidly and accurately positioned to the location with the inner pipe abutted seams to be polished as required, enables the polishing effect to be observed in a real-time and visual mode, and is simple in structure, controllable in process and high in polishing precision.
Description
technical field [0001] The present application relates to the technical field of quenching heat exchangers, in particular to a device for grinding seams of inner tubes of quenching heat exchangers. Background technique [0002] The quenching heat exchanger can quickly cool the pyrolysis raw materials after high temperature cracking, and prevent secondary reactions from occurring. It is one of the key equipment of the cracking furnace. The usual quenching heat exchanger is composed of double-tube heat exchange elements, headers and connectors, etc. The double-tube heat exchange elements are composed of inner and outer tubes nested with each other. If the length of the inner tube is longer, it needs to be spliced by two sections of tubes, and the seam between the two sections of the spliced tubes needs to be welded. Since the inner tube used in the quenching heat exchanger requires a higher inner hole finish, therefore, It is necessary to grind and polish the joints. Sinc...
Claims
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IPC IPC(8): B24B9/00
CPCB24B9/00B24B51/00
Inventor 吴为彪陈东标黄嗣罗陈孙艺
Owner THE CHALLENGE PETROCHEM MACHINERY CORP