CN108303217B

CN108303217B - Device for monitoring hydrogen fluoride leaking in heat exchanger

Info

Publication number: CN108303217B
Application number: CN201810129426.5A
Authority: CN
Inventors: 李珣珣; 朱建军; 周新基; 李文建; 徐兵; 康登海; 陈俊明; 沈鑫鑫; 葛大伟
Original assignee: Jiangsu Jiujiujiu Technology Co ltd
Current assignee: Jiangsu Jiujiujiu Technology Co ltd
Priority date: 2018-02-08
Filing date: 2018-02-08
Publication date: 2020-05-19
Anticipated expiration: 2038-02-08
Also published as: CN108303217A

Abstract

The invention discloses a device for monitoring hydrogen fluoride leakage in a heat exchanger, wherein two ends of a pipe are connected with a heat exchanger pipeline through flanges, and the pipe is a glass pipe or upper and lower sides of the pipe are respectively provided with upper and lower side glass which enables light rays on the upper and lower sides to be transparent and is contacted with a heat exchange medium in the pipe; an observation device for observing the light transmittance is arranged on the outer side of the glass tube or the outer sides of the upper and lower glass plates. The invention has simple structure, convenient use and good effect; not only can monitor the leakage of the hydrogen fluoride, but also solves the problem that the hydrogen fluoride is leaked to the outside after the glass is completely corroded.

Description

Device for monitoring hydrogen fluoride leaking in heat exchanger

Technical Field

The invention relates to a device for monitoring hydrogen fluoride leaking in a heat exchanger.

Background

Hydrogen fluoride is a very hazardous chemical and may require heat exchange in manufacturing. The leakage in the heat exchanger is inevitable to have a risk, and once the leakage is leaked to the outside, a great risk is caused, so that a monitoring device capable of rapidly finding the leakage needs to be considered.

The heat exchange media are various, one is a pure non-aqueous aprotic solvent as the heat exchange media, the other is aqueous or pure water as the heat exchange media, and the monitoring problem can be effectively solved by adopting PH on-line monitoring under the condition of aqueous or pure water. However, the installation of the on-line monitoring instrument is also complicated, and the installation point may be leaked. In the face of pure solvents that do not contain water, it is very costly to install monitoring equipment to monitor HF on-line.

Disclosure of Invention

The invention aims to provide a monitoring device for hydrogen fluoride leakage in a heat exchanger, which has the advantages of simple structure, convenience in use and good effect.

The technical solution of the invention is as follows:

the utility model provides a leak monitoring devices of hydrogen fluoride in heat exchanger which characterized by: the heat exchanger comprises a pipe, wherein two ends of the pipe are connected with a heat exchanger pipeline through flanges, and the pipe is a glass pipe or upper side glass and lower side glass which are respectively arranged on the upper side and the lower side of the pipe, enable light rays on the upper side and the lower side to be transparent and are in contact with a heat exchange medium in the pipe; an observation device for observing the light transmittance is arranged on the outer side of the glass tube or the outer sides of the upper and lower glass plates.

The observation device comprises a light emitter and a light receiver, the light emitter and the light receiver are respectively arranged on two opposite sides of the glass tube or the outer sides of the upper and lower side glass plates, and the light receiver receives light emitted by the light emitter; the light receiver is connected with the alarm device.

The observation device is a transparent material layer wrapped on the periphery of the pipe and used as a sight glass for observing whether the glass is corroded.

The periphery of the pipe is provided with a protective sleeve to prevent HF-containing substances from leaking after the glass is corroded and penetrated.

The invention has simple structure, convenient use and good effect; not only can monitor the leakage of the hydrogen fluoride, but also solves the problem that the hydrogen fluoride is leaked to the outside after the glass is completely corroded.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic structural view of example 1.

FIG. 2 is a schematic structural view of example 2.

Detailed Description

Example 1:

a monitoring device for hydrogen fluoride leakage in a heat exchanger comprises a pipe 1, wherein two ends of the pipe are connected with a heat exchanger pipeline through

flanges

2 and 3, and the pipe is a glass pipe (or upper side glass and lower side glass which are respectively arranged on the upper side and the lower side of the pipe, enable light rays on the upper side and the lower side to be transparent and are contacted with a heat exchange medium in the pipe); an observation device for observing the light transmittance is provided outside the glass tube (or outside the upper and lower glass plates).

The observation device comprises a light emitter 4 and a light receiver 5, the light emitter and the light receiver are respectively arranged on two opposite sides of the glass tube or the outer sides of the upper and lower side glass plates, and the light receiver receives light emitted by the light emitter; the light receiver is connected with the alarm device.

And a protective sleeve 6 is arranged on the periphery of the pipe to prevent HF substances from leaking after the glass is corroded and penetrated.

In stable operation, the pipeline is filled with cooling medium, and the glass cannot be corroded. The light receiver can receive the light of steady intensity, and after hydrogen fluoride leaks out, glass is corroded soon, and the light intensity that the light receiver received changes, and the light intensity changes data transmission to appointed alarm device, forms effective control.

Example 2:

the observation device is a transparent material layer 7 (organic glass material, PC material or other materials which are transparent and do not react with anhydrous HF) wrapped on the periphery of the tube, and is used as a sight glass for directly observing whether the glass is corroded. The rest may be the same as in embodiment 1.

Claims

1. The utility model provides a leak monitoring devices of hydrogen fluoride in heat exchanger which characterized by: the heat exchanger comprises a pipe, wherein two ends of the pipe are connected with a heat exchanger pipeline through flanges, and the pipe is a glass pipe or upper side glass and lower side glass which are respectively arranged on the upper side and the lower side of the pipe, enable light rays on the upper side and the lower side to be transparent and are in contact with a heat exchange medium in the pipe; an observation device for observing the light transmittance is arranged on the outer side of the glass tube or the outer sides of the upper and lower glass plates;

the observation device comprises a light emitter and a light receiver, the light emitter and the light receiver are respectively arranged on two opposite sides of the glass tube or the outer sides of the upper and lower side glass plates, and the light receiver receives light emitted by the light emitter; the light receiver is connected with the alarm device;

when the hydrogen fluoride leaks out, the glass is corroded quickly, the light intensity received by the light receiver changes, and the light intensity change data is transmitted to the designated alarm equipment.

2. The apparatus for monitoring hydrogen fluoride leakage in a heat exchanger according to claim 1, wherein: the periphery of the pipe is provided with a protective sleeve to prevent HF-containing substances from leaking after the glass is corroded and penetrated.