Online leakage detection device for heat exchange tube
A heat exchange tube and leak detection technology, which is applied in the direction of detecting the appearance of fluid at the leakage point and using liquid/vacuum degree to measure the liquid tightness, etc. It can solve the problems of difficult maintenance, increased pipeline pressure loss, and long reflection distance To improve accuracy and safety, speed up response time, and reduce pipeline pressure drop
Pending Publication Date: 2021-01-01
大连派思燃气设备有限公司
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Problems solved by technology
[0003] The existing double-tube heat exchanger can effectively prevent the tube from bursting, but it is expensive and difficult to repair
There is also a gas-liquid separation device installed on the connecting pipeline of the heat exchanger. The reflection distance of this device is long, which increases the pressure loss of the pipeline and the separation effect is general, and the effect is not significant.
Method used
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Embodiment Construction
[0009] Embodiment is illustrated below in conjunction with accompanying drawing:
[0010] As shown in the figure, an online leak detection device for heat exchange tubes includes a safety relief valve 1, a liquid level switch 2, a flash tank 3, a separation internal part 4, a gas detector 5, a cover 6, and an exhaust valve 7, A certain volume of flash tank 3, safety relief valve 1 and gas detector 5 are installed on the top of flash tank 3, and liquid level switch 2 is installed on the side wall or top of flash tank 3, and the liquid level alarm value can be set. The separation inner part 4 is installed inside the shell 3, which can separate the gas in the liquid, and induce the gas to enter the upper part of the flash tank 3 and act on the safety relief valve 1. After the safety relief valve 1 operates, the gas will be discharged into the cover 6 And act on the gas detection equipment 5 to trigger an alarm, and after the accident is dealt with, the waste gas is discharged to ...
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The invention provides anon-line leakage detection device for a heat exchange tube. The device comprises a safety relief valve, a liquid level switch, a flash tank, a separation internal part, a gas detector, a cover and an exhaust valve. The safety relief valve and the gas detector are installed at the top of the flash tank, the liquid level switch is installed on the flash tank, the separation internal part is installed in the flash tank, the cover is arranged outside the safety relief valve and the gas detector, and the exhaust valve is arranged at the top of the cover. The device is installed at the top of a shell, so that the pipeline pressure drop is reduced, the response time is shortened, the leakage detection accuracy and safety are improved, the structure is simple, operation iseasy, and the manufacturing cost is low.
Description
technical field [0001] The invention relates to a novel on-line leak detection device for heat exchange tubes of shell and tube heat exchangers in the petrochemical industry. Background technique [0002] Shell-and-tube heat exchangers are widely used heat transfer devices in the petrochemical industry. Since the media in this industry are mostly flammable and explosive, once the heat exchange tube bursts, it may cause immeasurable losses to the plant and downstream equipment. Therefore, effective measures are needed to reduce the loss caused by tube explosion. [0003] The existing double-tube heat exchanger can effectively prevent tube explosion, but it is expensive and difficult to overhaul. There is also a gas-liquid separation device installed on the connecting pipeline of the heat exchanger. The reflection distance of this device is long, which increases the pressure loss of the pipeline and the separation effect is general and the effect is not significant. Content...
Claims
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IPC IPC(8): G01M3/22
CPCG01M3/22
Inventor 侯亚博倪妮张雪李博贾芙蓉
Owner 大连派思燃气设备有限公司