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Visual testing system for heat transfer and scale inhibition property of oil sealing water cooler of oil refining device

A technology of oil refining equipment and testing system, which is applied in the field of visual testing system, can solve the problems of large differences in heat transfer performance and resistance performance parameters, and the inability to simulate the fouling of water coolers, etc., so as to achieve easy observation and research, high reliability, Applicable to a wide range of effects

Active Publication Date: 2015-12-16
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional liquid-liquid water cooler test platform is tested with a clean medium, which cannot simulate the fouling of the water cooler, and the obtained heat transfer performance and resistance performance parameters are quite different from the actual situation.

Method used

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  • Visual testing system for heat transfer and scale inhibition property of oil sealing water cooler of oil refining device
  • Visual testing system for heat transfer and scale inhibition property of oil sealing water cooler of oil refining device
  • Visual testing system for heat transfer and scale inhibition property of oil sealing water cooler of oil refining device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0075] During the implementation of this example, the types of test heat exchange tubes of the oil seal cooler test assembly 4 were copper plain tubes, stainless steel plain tubes, and Ni-P electroless plated tubes in which the surface of the copper plain tube was used as the base heat exchange tube for electroless plating. Such as image 3 As shown, the fouling curves of the three heat exchange tubes during the induction period, according to the order of copper tubes, stainless steel tubes and Ni-P electroless plating tubes, the fouling induction period is significantly prolonged, respectively 65 minutes, 110 minutes and 180 minutes, The fouling induction period of stainless steel tube and Ni-P electroless plated tube is 1.7 times and 2.8 times that of copper tube, respectively. In the fouling growth stage, the fouling rate of the copper tube is the largest, followed by the stainless steel tube, and the fouling rate of the Ni-P electroless plating tube is the smallest. The fo...

Embodiment example 2

[0077]The test system used in Example 2 is the same as Example 1, and the difference from Example 1 is that the types of test heat exchange tubes in the oil seal cooler test component 4 are stainless steel plain tubes and stainless steel plain tubes as the base tube formed by machining. The special-shaped twisted flat tube is used to measure the heat transfer coefficient in the tube of the sealed oil water cooler and test the simulated component. In this example, indirect fitting is used. First, the flow rate outside the tube is changed under the condition of the maximum flow rate in the tube, and the heat transfer outside the tube is fitted according to the power function. associative. Then change the flow rate in the tube under the condition of the maximum flow rate outside the tube, and calculate the total thermal resistance from the temperature of the inlet and outlet inside and outside the tube and the heat transfer. Deducting the heat transfer resistance outside the tube...

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Abstract

The invention discloses a visual testing system for heat transfer and scale inhibition property of an oil sealing water cooler of an oil refining device. The visual testing system is characterized in that: a cooling water circulatory system is arranged between a cold side inlet and a cold side outlet of the oil sealing water cooler; a hot oil circulatory system is arranged between a hot side inlet and a hot side outlet; a first differential pressure sensor is arranged between the cold side inlet end and the cold side outlet end of the oil sealing water cooler; a second differential pressure sensor is arranged between the hot side inlet end and the hot side outlet end of the oil sealing water cooler; a first pressure sensor and a first temperature sensor are arranged on the pipeline at the cold side inlet end of the oil sealing water cooler; a second pressure sensor and a second temperature sensor are arranged on the pipeline at the hot side inlet end of the oil sealing water cooler; a third temperature sensor is arranged on the pipeline at the cold side outlet end of the oil sealing water cooler; a fourth temperature sensor is arranged on the pipeline at the hot side outlet end of the oil sealing water cooler; a heat exchange pipe and a shell of the oil sealing water cooler are connected to form a joint structure capable of being disassembled and changed. According to the visual testing system, the test data is high in reliability, and the application range is wide.

Description

technical field [0001] The invention relates to a visual testing system for an oil refinery. In particular, it relates to a visual test system for heat transfer and anti-scaling performance of an oil sealing water cooler in an oil refinery. Background technique [0002] Generally, hot oil pumps in oil refineries have sealing oil, which is injected into the friction pair of the sealing end face, thereby reducing the temperature of the mechanical seal end face. The pressure of the seal oil is slightly higher than the pressure of the medium in the pump. The seal oil is generally boosted by a special seal oil pump and distributed to the seal chamber of each pump in the pump room through pipelines. [0003] Sealing oil has four functions: cooling, flushing, lubricating, and sealing the end face, so that the mechanical seal can operate in a good working environment. The coking unit generally uses wax oil (light wax oil, heavy wax oil is the backup sealing oil) as sealing oil. Di...

Claims

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Application Information

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IPC IPC(8): G01N25/20G01N33/00
Inventor 黄卫东李涛孙全胜王元华郭拂娟李锐李洪涛徐鹏杨佩佩荆瑞静高丽岩张雅贤
Owner CHINA PETROLEUM & CHEM CORP
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