CN112161761A - Device for separating and detecting natural gas leakage on water side on shell-and-tube heat exchanger - Google Patents
Device for separating and detecting natural gas leakage on water side on shell-and-tube heat exchanger Download PDFInfo
- Publication number
- CN112161761A CN112161761A CN202010894899.1A CN202010894899A CN112161761A CN 112161761 A CN112161761 A CN 112161761A CN 202010894899 A CN202010894899 A CN 202010894899A CN 112161761 A CN112161761 A CN 112161761A
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- cavity
- water
- pipeline
- natural gas
- heat exchanger
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000003345 natural gas Substances 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3227—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators for radiators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a device for separating and detecting natural gas leakage on a water side on a shell-and-tube heat exchanger, which comprises: the gas alarm is arranged on the support, the inside of the pipeline cavity is divided into the gas cavity, the water inlet cavity and the water return cavity through the water diversion plate and the middle web plate, the safety valve is connected to the upper end of the gas cavity, the water inlet pipeline is connected to the lower end of the water inlet cavity, and the water return pipeline is connected to the lower end of the water return cavity. The problem of traditional shell and tube type heat exchanger module unable natural gas that detects reveals is solved, discovery accident that can be timely quick, guarantee personal and property safety.
Description
Technical Field
The invention relates to a skid-mounted shell-and-tube heat exchanger module for the natural gas power generation industry, in particular to a device for separating and detecting natural gas leakage on a water side on a shell-and-tube heat exchanger.
Background
The natural gas power generation is very common in the current power industry, the natural gas power generation is environment-friendly and high in cost performance, in a natural gas power plant, the temperature of natural gas is often lower than the temperature required by a combustion engine, a shell-and-tube heat exchanger module is usually added to exchange heat for the natural gas, a heat exchange medium is usually high-temperature closed circulating water, the structure of the shell-and-tube heat exchanger is usually divided into a tube pass and a shell pass, the heat exchange medium and the natural gas respectively enter the two cavities for reverse convection, the medium reaches the heat exchange process, once a certain heat exchange tube in a heat exchange tube bundle is broken in the heat exchange process, the natural gas can enter the water medium, a device is needed to separate and detect the leakage condition, faults are found as early as possible, the fault is timely treated, the danger.
Disclosure of Invention
The invention aims to provide a device for separating and detecting natural gas leakage on a water side on a shell-and-tube heat exchanger, which is based on a module unit of the existing shell-and-tube heat exchanger and is connected with a group of gas-water leakage detection separation devices above a water return pipeline of a water system, can quickly and timely detect natural gas leakage, and is used for ensuring the safety of human bodies and equipment and reducing the further expansion of leakage accidents.
The technical solution of the invention is as follows: an apparatus for separating and detecting water side natural gas leaks on a shell and tube heat exchanger, comprising: blind flange, fastener group, gas alarm, support, pipeline cavity, water diversion plate, relief valve, middle web, air cavity, return water chamber, return water pipeline, inlet channel, intake antrum, its characterized in that: the gas alarm is characterized in that two ends of the pipeline cavity are connected with the blind flange through fastener groups, a support is connected to the upper end of the pipeline cavity, a gas alarm is mounted on the support, the inside of the pipeline cavity is divided into a gas cavity, a water inlet cavity and a water return cavity through a water diversion plate and a middle web plate, a safety valve is connected to the upper end of the gas cavity, the lower end of the water inlet cavity is connected with a water inlet pipeline, the lower end of the water return cavity is connected with a water return pipeline, mesh-shaped small holes are uniformly distributed in the water diversion plate, and large holes are uniformly distributed in the middle web plate.
Compared with the prior art, the invention has the following advantages: the problem of traditional shell and tube type heat exchanger module unable natural gas that detects reveals is solved, discovery accident that can be timely quick, guarantee personal and property safety.
Drawings
FIG. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a left side view of an embodiment of the present invention.
Fig. 3 is a front view of an intermediate web 8 in an embodiment of the invention.
Fig. 4 is a front view of a water diversion plate 6 according to an embodiment of the present invention.
In the figure: 1. the gas alarm comprises a blind flange, 2, a fastener group, 3, a gas alarm, 4, a support, 5, a pipeline cavity, 6, a water diversion plate, 7, a safety valve, 8, a middle web, 9, an air cavity, 10, a water return cavity, 11, a water return pipeline, 12, a water inlet pipeline, 13 and a water inlet cavity.
Detailed Description
The embodiments are described below with reference to the accompanying drawings:
the invention relates to a device for separating and detecting natural gas leakage on a water side on a shell-and-tube heat exchanger, which consists of a blind flange 1, a fastener group 2, a gas alarm 3, a bracket 4, a pipeline cavity 5, a water diversion plate 6, a safety valve 7, an intermediate web 8, an air cavity 9, a water return cavity 10, a water return pipeline 11, a water inlet pipeline 12 and a water inlet cavity 13; the two ends of the pipeline cavity 5 are connected with the blind flange 1 through the fastener group 2, the upper end of the pipeline cavity 5 is connected with the support 4, the support 4 is provided with the gas alarm 3, the inside of the pipeline cavity 5 is divided into the gas cavity 9, the water inlet cavity 13 and the water return cavity 10 through the water diversion plate 6 and the middle web plate 8, the upper end of the gas cavity 9 is connected with the safety valve 7, the lower end of the water inlet cavity 13 is connected with the water inlet pipeline 12, the lower end of the water return cavity 10 is connected with the water return pipeline 11, the water diversion plate 6 is provided with uniformly distributed reticular small holes, and the middle web plate.
All parts welding installation are accomplished and are a whole, and the netted aperture of evenly distributed appears the water hammer phenomenon when avoiding intaking on the water diversion board 6, opens evenly distributed's macropore on the middle web 8, has the effect of cowling panel, and when making water process middle web 8, rivers are steady, appear the torrent when preventing to intake for the first time. When the system is injected with water for the first time, the return water of the shell-and-tube heat exchanger enters the water inlet cavity 13 through the water inlet pipeline 12, flows into the water return cavity 10 through the middle web plate 8, flows out from the water outlet through the water return pipeline 11, during the stable operation of the water system after the water is fed for the first time, part of air can be stored in the air cavity 9, a closed air cavity 9 is formed, the set pressure of the safety valve 7 is larger than the maximum working pressure of the water and smaller than the minimum working pressure of the natural gas, during the normal operation, the safety valve 7 can not be opened, the heat exchange pipe in the shell-and-tube heat exchanger is broken and leaked, the natural gas can enter the air cavity 9 of the device along with the water of the water return pipeline, the pressure of the air cavity.
Claims (1)
1. An apparatus for separating and detecting water side natural gas leaks on a shell and tube heat exchanger, comprising: blind flange (1), fastener group (2), gas alarm (3), support (4), pipeline cavity (5), diversion plate (6), relief valve (7), middle web (8), air cavity (9), return water chamber (10), return water pipeline (11), inlet channel (12), inlet chamber (13), its characterized in that: pipeline cavity (5) both ends meet through fastener group (2) and blind flange (1), pipeline cavity (5) upper end connect support (4), support (4) on be equipped with gas alarm (3), pipeline cavity (5) inside cut apart into air cavity (9), intake antrum (13), return water chamber (10) through diversion plate (6), middle web (8), air cavity (9) upper end connect relief valve (7), intake antrum (13) lower extreme connect intake pipe (12), return water chamber (10) lower extreme connect return water pipeline (11), diversion plate (6) on be equipped with evenly distributed's netted aperture, middle web (8) on open evenly distributed's macropore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894899.1A CN112161761A (en) | 2020-08-31 | 2020-08-31 | Device for separating and detecting natural gas leakage on water side on shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894899.1A CN112161761A (en) | 2020-08-31 | 2020-08-31 | Device for separating and detecting natural gas leakage on water side on shell-and-tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112161761A true CN112161761A (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010894899.1A Pending CN112161761A (en) | 2020-08-31 | 2020-08-31 | Device for separating and detecting natural gas leakage on water side on shell-and-tube heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN112161761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567071A (en) * | 2021-07-26 | 2021-10-29 | 湖南正中制药机械有限公司 | Rapid vacuum leak detection system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1063401A1 (en) * | 1999-06-25 | 2000-12-27 | ABB Alstom Power (Schweiz) AG | Apparatus and method for separating gas from liquid |
| CN103055550A (en) * | 2012-12-11 | 2013-04-24 | 上海巴安水务股份有限公司 | Pressure type gas-water separator and gas-water separation method |
| CN104048161A (en) * | 2014-06-25 | 2014-09-17 | 江苏中圣高科技产业有限公司 | United gasification device of liquified natural gas (LNG) |
| CN205909572U (en) * | 2016-07-01 | 2017-01-25 | 费希尔久安输配设备(成都)有限公司 | A horizontal air leakage trap and cooling agent circulation system for cooling agent circulation system |
| CN106568635A (en) * | 2015-10-10 | 2017-04-19 | 中国石化扬子石油化工有限公司 | Circulating water and low-concentration combustible gas rapid separation catcher and method for combustible gas detection by using rapid separation catcher |
| CN213397547U (en) * | 2020-08-31 | 2021-06-08 | 大连派思燃气设备有限公司 | Device for separating and detecting natural gas leakage on water side on shell-and-tube heat exchanger |
-
2020
- 2020-08-31 CN CN202010894899.1A patent/CN112161761A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1063401A1 (en) * | 1999-06-25 | 2000-12-27 | ABB Alstom Power (Schweiz) AG | Apparatus and method for separating gas from liquid |
| CN103055550A (en) * | 2012-12-11 | 2013-04-24 | 上海巴安水务股份有限公司 | Pressure type gas-water separator and gas-water separation method |
| CN104048161A (en) * | 2014-06-25 | 2014-09-17 | 江苏中圣高科技产业有限公司 | United gasification device of liquified natural gas (LNG) |
| CN106568635A (en) * | 2015-10-10 | 2017-04-19 | 中国石化扬子石油化工有限公司 | Circulating water and low-concentration combustible gas rapid separation catcher and method for combustible gas detection by using rapid separation catcher |
| CN205909572U (en) * | 2016-07-01 | 2017-01-25 | 费希尔久安输配设备(成都)有限公司 | A horizontal air leakage trap and cooling agent circulation system for cooling agent circulation system |
| CN213397547U (en) * | 2020-08-31 | 2021-06-08 | 大连派思燃气设备有限公司 | Device for separating and detecting natural gas leakage on water side on shell-and-tube heat exchanger |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567071A (en) * | 2021-07-26 | 2021-10-29 | 湖南正中制药机械有限公司 | Rapid vacuum leak detection system and method |
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