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Fast hard solder evaluation system for oil cooler in coarse vacuum condition

An evaluation system, oil cooler technology, applied in instruments, measuring devices, etc., can solve problems such as turbine bearing wear, engine wear, and post-processing SCR system effects, and achieve the effect of reducing pressure and reducing the amount of testing

Active Publication Date: 2018-06-29
ZHEJIANG YINLUN MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) The high copper content of the oil cooler can lead to false signals of engine wear during oil testing;
[0004] 2) Corrosion deposition products will cause wear of turbine bearings;
[0005] 3) Corrosion deposition products will affect the post-treatment SCR system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: This embodiment specifies the structure and brazing requirements of the oil cooler, as follows:

[0023] The oil cooler in this embodiment is a stainless steel oil cooler, which is a kind of plate-fin heat exchanger, and is more compact in structure, and its cold and hot passages are arranged at intervals. The hot channel is connected with a heat medium, that is, the high-temperature engine oil from the oil pump, and the cold channel is connected with a cooling medium, that is, a cooling liquid, a mixed solution of 50% ethylene glycol and 50% water. The structural composition of the oil cooler includes a bottom mounting plate, a core body and a top plate. An oil inlet, an oil outlet, a coolant inlet and a coolant outlet are arranged on the bottom mounting plate. The oil inlet, the oil outlet and the hot channel together form the oil circuit, and the coolant inlet, the coolant outlet and the cold channel together form the water channel. The core is the co...

Embodiment 2

[0026] Embodiment 2: the present embodiment has specified the structure of the fast brazing evaluation system of oil cooler under low vacuum condition, as follows:

[0027] A rapid brazing evaluation system for oil coolers under low vacuum conditions, including 4 functional modules, a transfer module, and a feedback module; the 4 functional modules are brazing seam detection module, sealing detection module, engine oil analysis module, and precipitation analysis module;

[0028] The functional modules are respectively connected to the transfer module, and the transfer module is connected to the feedback module;

[0029] The feedback module has a human-computer interaction interface for displaying the information transmitted by the transmission module;

[0030] The input of the rapid brazing evaluation system is the oil cooler, and the transfer module is used to send the oil cooler to specific functional modules one by one, collect the operation information of the functional m...

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PUM

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Abstract

The invention relates to a fast hard solder evaluation system for an oil cooler in a coarse vacuum condition. The system comprises a soldering seam detection module, a sealing detection module, an engine oil analysis module, a precipitation analysis module, a transmitting module and a feedback module. The fast hard solder evaluation system can be used for successively detecting the soldering seamsand airtightness of the oil cooler and performing a failure analysis on the oil cooler. Detection logic is set up in advance, the detection condition can be accurately controlled, the pressure of staff is alleviated, the defects in the hard solder of the oil cooler can be timely detected as well, the defective position can be accurately obtained, the detection can be timely stopped, and the testamount is reduced.

Description

technical field [0001] The invention relates to the welding field, in particular to a rapid brazing evaluation system for oil coolers under low vacuum conditions. Background technique [0002] With the continuous upgrading of emission regulations, the requirements of the engine are also constantly increasing. The oil temperature of the engine lubrication system is getting higher and higher, even as high as 150°C, and the role of the oil cooler is increasing. At present, most stainless steel oil cooler products are welded with pure copper solder. During use, it is found that high-temperature engine oil continuously scours the copper in the channel of the oil cooler to cause copper corrosion. Affect its performance, the specific failure mode is as follows: [0003] 1) The high copper content of the oil cooler can lead to false signals of engine wear during oil testing; [0004] 2) Corrosion deposition products will cause wear of turbine bearings; [0005] 3) Corrosion depo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 陆青松张立超张玉金霞韩琦齐云飞
Owner ZHEJIANG YINLUN MACHINERY
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