CN112161754A - Online leakage detection device for heat exchange tube - Google Patents
Online leakage detection device for heat exchange tube Download PDFInfo
- Publication number
- CN112161754A CN112161754A CN202010895834.9A CN202010895834A CN112161754A CN 112161754 A CN112161754 A CN 112161754A CN 202010895834 A CN202010895834 A CN 202010895834A CN 112161754 A CN112161754 A CN 112161754A
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- China
- Prior art keywords
- flash tank
- heat exchange
- exchange tube
- detection device
- cover
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides an online leakage detection device for a heat exchange tube, which comprises: the flash tank is provided with the liquid level switch, the flash tank is internally provided with the internal separating member, the covers are arranged outside the safe discharge valve and the gas detector, and the exhaust valve is arranged at the top of the cover. The invention is arranged on the top of the shell, reduces the pressure drop of the pipeline, quickens the response time, improves the accuracy and the safety of leak detection, and has the advantages of simple structure, easy operation and low manufacturing cost.
Description
Technical Field
The invention relates to a novel heat exchange tube online leakage detection device of a shell-and-tube heat exchanger in the petrochemical industry.
Background
The shell-and-tube heat exchanger is a heat transfer device widely applied in the petrochemical industry, and as media in the industry mostly have flammable and explosive properties, once a heat exchange tube is burst, immeasurable loss can be caused to a plant station and downstream equipment, so that effective measures are needed for reducing the loss caused by burst.
The existing double-pipe heat exchanger can effectively prevent pipe explosion, but is expensive in manufacturing cost and high in maintenance difficulty. And a gas-liquid separation device is arranged on a connecting pipeline of the heat exchanger, the reflection distance of the device is longer, the pressure loss of the pipeline is increased, the separation effect is general, and the effect is not obvious.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an online leakage detection device for a heat exchange tube.
The technical solution of the invention is as follows: an online leak detection device for a heat exchange tube comprises: safe bleeder valve, liquid level switch, flash tank, separation internals, gas detector, cover, discharge valve, its characterized in that: the top of the flash tank is provided with a safety relief valve and a gas detector, the flash tank is provided with a liquid level switch, a separation internal part is arranged in the flash tank, covers are arranged outside the safety relief valve and the gas detector, and the top of the cover is provided with an exhaust valve.
Compared with the prior art, the invention has the following advantages: the device is arranged at the top of the shell, so that the pressure drop of the pipeline is reduced, the response time is shortened, the accuracy and the safety of leak detection are improved, the structure is simple, the operation is easy, and the manufacturing cost is low.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
In the figure: 1. safe bleeder valve, 2, liquid level switch, 3, flash tank, 4, separation internals, 5 gas detector, 6, cover, 7, discharge valve.
Detailed Description
The embodiments are described below with reference to the accompanying drawings:
as shown in the figure, the online leak detection device for the heat exchange tube comprises 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, the flash tank 3 with a certain volume is arranged at the top of the flash tank 3, the liquid level switch 2 is arranged on the side wall or the top of the flash tank 3, a liquid level alarm value can be set, the separation internal part 4 is arranged inside a shell 3, gas in liquid can be separated, the gas is induced to enter the upper part of the flash tank 3 and act on the safety relief valve 1, the gas is discharged into the cover 6 after the safety relief valve 1 acts on the gas detection device 5 to trigger alarm, and waste gas is discharged to a safety area through the exhaust valve 7 arranged at the top of the cover 6 after accident processing.
The invention provides an online leakage detection device for a heat exchange tube, which is applied to a shell-and-tube heat exchanger with a high-pressure gas as a tube side medium and a low-pressure liquid as a shell side medium. When the heat exchange tube is burst, the alarm can be given and effective measures can be taken in the shortest time of burst, so that the accident is prevented from further expanding, and meanwhile, the pressure loss of the pipeline can be reduced.
Claims (1)
1. An online leak detection device for a heat exchange tube comprises: safe bleeder valve (1), liquid level switch (3), flash tank (3), separation internals (4), gas detector (5), cover (6), discharge valve (7), its characterized in that: the flash tank (3) top safety relief valve (1) and gas detector (5) are equipped with, flash tank (3) on be equipped with liquid level switch (3), flash tank (3) inside separation internals (4) are equipped with, safety relief valve (1) and gas detector (5) outside be equipped with cover (6), cover (6) top exhaust valve (7) be equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895834.9A CN112161754A (en) | 2020-08-31 | 2020-08-31 | Online leakage detection device for heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895834.9A CN112161754A (en) | 2020-08-31 | 2020-08-31 | Online leakage detection device for heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112161754A true CN112161754A (en) | 2021-01-01 |
Family
ID=73857310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010895834.9A Pending CN112161754A (en) | 2020-08-31 | 2020-08-31 | Online leakage detection device for heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112161754A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023208954A1 (en) * | 2022-04-26 | 2023-11-02 | Qtf Sweden Ab | Gas leak detector |
-
2020
- 2020-08-31 CN CN202010895834.9A patent/CN112161754A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023208954A1 (en) * | 2022-04-26 | 2023-11-02 | Qtf Sweden Ab | Gas leak detector |
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