CN107655634B - Pulse type halogen gas generator - Google Patents
Pulse type halogen gas generator Download PDFInfo
- Publication number
- CN107655634B CN107655634B CN201610594602.3A CN201610594602A CN107655634B CN 107655634 B CN107655634 B CN 107655634B CN 201610594602 A CN201610594602 A CN 201610594602A CN 107655634 B CN107655634 B CN 107655634B
- Authority
- CN
- China
- Prior art keywords
- pressure
- gas
- halogen
- compressed air
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The invention belongs to the technical field of nuclear, and particularly relates to a pulse type halogen gas generator which comprises a pressure-bearing liquid storage tank and a retention cavity, wherein the pressure-bearing liquid storage tank is used for storing a liquid halogen reagent; the retention cavity is also respectively connected with a compressed air inlet pipeline and a gas outlet pipeline; the compressed air inlet pipeline is used for introducing compressed air into the retention cavity; the compressed air inlet pipeline and the gas outlet pipeline are provided with pulse valves, the pulse valves are used for controlling compressed gas to enter the retention cavity from the compressed air inlet and flow out from the gas outlet, and the compressed gas is used for gasifying the halogen reagent in the retention cavity into halogen gas and bringing the halogen gas out of the gas outlet pipeline. The equipment has the advantages of simple and convenient operation, easy control, convenient disassembly, assembly and maintenance, small dosage of halogen reagent and small environmental pollution.
Description
Technical Field
The invention belongs to the technical field of nuclear, and particularly relates to a pulse type halogen gas generator.
Background
The iodine adsorber is a core device for removing radioactive iodine pollutants in process waste gas and exhaust air of a nuclear power station, is a key component in an air purification system of a nuclear facility, and is required to be subjected to a field acceptance test of performance detection after being installed and a periodic test of the performance detection in the operation process in order to ensure that the iodine removal performance meets the operation requirement.
The ASME AG-1, N510, and ET791 standards specify that the mechanical leak rate of an iodine adsorber (bank) can be verified using a halogen gas as a tracer. The commonly used halogen gases are Freon R-11, R-12, R-123, etc., which are non-radioactive substances and are easily adsorbed and desorbed by activated carbon, and for iodine adsorbers, the Freon leak test is a non-destructive test that requires the use of a halogen gas generator to generate the halogen gas required for the test. Along with the development of third-generation nuclear power, the application of a Freon leak detection technology is more and more extensive, at present, a continuous halogen gas generator is used in China for carrying out field test on performance detection of an iodine adsorber in a nuclear air purification system, the test needs long time, the dosage of halogen gas is large, and certain adverse effects are caused to the environment. If the pulse mode halogen gas generator is used, the time required for the test is short and the amount of the halogen gas tracer used is small, but the pulse mode halogen gas generator is always monopolized by foreign companies, and is expensive, long in the order period, and difficult in after-sales service.
Disclosure of Invention
The invention aims to provide a pulse type halogen gas generator which meets the national and foreign nuclear industry standards, generates halogen gas in a pulse mode to serve as a tracer agent for detecting the performance of an iodine adsorber, meets the use requirement of a nuclear facility air purification system on performance detection of the iodine adsorber, and breaks through monopoly of foreign technologies.
In order to achieve the purposes, the invention adopts the technical scheme that the pulse type halogen gas generator comprises a pressure-bearing liquid storage tank for storing a liquid halogen reagent and a retention cavity connected with the pressure-bearing liquid storage tank through a metering valve, wherein the metering valve can introduce a fixed amount of the halogen reagent into the retention cavity from the pressure-bearing liquid storage tank; the retention cavity is also respectively connected with a compressed air inlet pipeline and a gas outlet pipeline; the compressed air inlet pipeline is used for introducing compressed air into the retention cavity; the compressed air inlet pipeline and the gas outlet pipeline are provided with pulse valves, the pulse valves are used for controlling the flow passage of the compressed gas, so that the compressed gas enters the retention cavity from the compressed air inlet and flows out from the gas outlet, and the compressed gas is used for gasifying the halogen reagent in the retention cavity into halogen gas and carrying the halogen gas out of the gas outlet pipeline.
Furthermore, the retention cavity is arranged below the pressure-bearing liquid storage tank and is connected with the bottom of the pressure-bearing liquid storage tank through the metering valve, and the pressure-bearing liquid storage tank is provided with a pressure gauge and a liquid level gauge.
Furthermore, the metering valve is connected with the pressure-bearing liquid storage tank and the retention cavity through a clamping sleeve.
Further, the pulse valve operates in a single pulse mode.
Further, a pressure reducing valve and a filter are arranged on the compressed air inlet pipeline, the filter is close to the compressed air inlet, and the pressure reducing valve is used for adjusting the pressure of compressed air from the compressed air inlet.
Furthermore, a quick connector is arranged on the gas outlet.
Further, the pressure inside the pressure-bearing liquid storage tank is controlled through a preset pressure regulating valve arranged outside the pressure-bearing liquid storage tank.
Further, the compressed gas is air or high-purity nitrogen.
Further, the pressure of the compressed gas is at most 830 kPa.
Further, the halogen reagent is Freon R-11, Freon R-12, Freon R-123, Freon R-43 or bromobutane.
The invention has the beneficial effects that:
1. the operation is simple and convenient, and the generation amount of the halogen gas is easy to control;
2. the metering valve is connected with the pressure-bearing liquid storage tank and the retention cavity by a clamping sleeve, so that the metering valve is convenient to disassemble, assemble, inspect and maintain;
3. the test for detecting the performance of the iodine adsorber requires short time, the dosage of halogen gas is small, and the environmental pollution is small;
4. is suitable for harsh conditions such as high humidity, large air quantity, thin layer (the thickness of the activated carbon layer is less than 2.5cm) carbon bed and the like.
Drawings
FIG. 1 is a schematic structural view of a pulsed halogen gas generator according to an embodiment of the present invention;
in the figure: 1-one-way valve, 2-pressure gauge, 3-pressure-bearing liquid storage tank, 4-liquid level meter, 5-metering valve, 6-retention chamber, 7-pulse valve, 8-quick connector, 9-pressure reducing valve, 10-filter, 11-feed inlet, 12-compressed air inlet, 13-gas outlet, 14-compressed air inlet pipeline and 15-gas outlet pipeline.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, the pulse type halogen gas generator provided by the invention mainly comprises a pressure-bearing liquid storage tank 3, a metering valve 5, a retention cavity 6, a pulse valve 7, a compressed air inlet 12, a gas outlet 13, a compressed air inlet pipeline 14 and a gas outlet pipeline 15.
A compressed air inlet 12 is provided at the end of the compressed air inlet line remote from the retention chamber 6 and a gas outlet 13 is provided at the end of the gas outlet line remote from the retention chamber 6.
The retention cavity 6 is arranged below the pressure-bearing liquid storage tank 3 and is connected with the bottom of the pressure-bearing liquid storage tank 3 through a metering valve 5, and the liquid halogen reagent in the pressure-bearing liquid storage tank 3 can enter the retention cavity 6 under the control of the metering valve 5 by means of the pressure in the pressure-bearing liquid storage tank 3 and the gravity of the halogen reagent. The metering valve 5 is connected with the pressure-bearing liquid storage tank 3 and the retention cavity 6 through a clamping sleeve. The retention cavity 6 is further connected with a compressed air inlet pipeline 14 and a gas outlet pipeline 15 respectively, and the pulse valve 7 is arranged on the compressed air inlet pipeline 14 and the gas outlet pipeline 15 (namely the pulse valve 7 controls the compressed air inlet pipeline 14 and the gas outlet pipeline 15 simultaneously). In this embodiment, the pulse valve 7 is a four-way valve, and the function of switching the air passage is realized by rotating a valve handle and switching a passage.
The pressure-bearing liquid storage tank 3 is also provided with a pressure gauge 2, a liquid level meter 4 and a feed inlet 11, and the feed inlet 11 is also provided with a one-way valve 1.
On the compressed air inlet line 14, a pressure reducing valve 9 and a filter 10 are also arranged in succession, wherein the filter 10 is located close to the compressed air inlet 12 and the pressure reducing valve 9 is arranged on the line between the filter 10 and the retaining chamber 6.
A quick coupling 8 is provided on the gas outlet line 15.
Wherein the content of the first and second substances,
the pressure-bearing liquid storage tank 3 is used for storing a liquid halogen reagent;
the metering valve 5 is used for introducing a quantitative liquid halogen reagent into the retention cavity 6 from the pressure-bearing liquid storage tank 3, and the metering valve 5 can change the dosage of the halogen reagent according to the air volume of different air purification systems which need to perform performance detection of the iodine adsorber so as to generate halogen gas with corresponding dosage;
the compressed air inlet pipeline 14 and the compressed air inlet 12 are used for introducing compressed air into the retention cavity 6;
the compressed gas is used for gasifying the halogen reagent in the retention cavity 6 into halogen gas and carrying the halogen gas out of the gas outlet 13 through the gas outlet pipeline 15;
the pulse valve 7 is used for controlling the flow passage of compressed gas, when tracer (namely halogen gas) needs to be injected, the compressed gas is controlled to enter the retention chamber 6 from the compressed air inlet 12 through the compressed air inlet pipeline 14, and gas (mixed gas of the compressed gas and the halogen gas after the liquid halogen reagent is gasified) in the retention chamber 6 flows out from the gas outlet 13 through the gas outlet pipeline 15, and the pulse valve 7 works in a single pulse mode;
the pressure gauge 2 and the liquid level meter 4 are used for displaying the internal pressure and the liquid level height of the pressure-bearing liquid storage tank 3, so that the pressure and the liquid level condition of the pressure-bearing liquid storage tank 3 can be conveniently observed;
the preset pressure regulating valve (not shown in fig. 1) is arranged outside the pressure-bearing liquid storage tank 3, is connected with the feeding port 11 through a pipeline, and is used for controlling the pressure inside the pressure-bearing liquid storage tank 3.
The check valve 1 is used for controlling the opening and closing of the feed port 11, and further controlling the external pressure and the liquid halogen reagent to enter the pressure-bearing liquid storage tank 3 through the feed port 11.
The filter 10 is used for pre-filtering the compressed gas entering the pressure reducing valve 9 through the compressed air inlet 12 to remove impurities from the compressed gas.
The pressure reducing valve 9 is used to regulate the pressure of the compressed gas entering the pulse valve 7 from the compressed air inlet 12.
The quick connector 8 is used for connecting the gas outlet 13 with a halogen gas injection port of the iodine adsorber test system to be detected, and the halogen gas injection port is installed in a ventilation purification system provided with the iodine adsorber to be detected.
The compressed gas adopted by the invention is air or high-purity nitrogen, and the pressure of the compressed gas is 830kPa at most.
The halogen reagent is Freon R-11, or Freon R-12, or Freon R-123, or Freon R-43, or bromobutane (the above halogen reagents are all used independently).
Finally, the practical application of the pulsed halogen gas generator provided by the invention is illustrated.
Step 1, pressurizing and injecting a certain volume of liquid halogen reagent into a pressure-bearing liquid storage tank 3 of the pulse type halogen gas generator (the pressure required for injection is controlled by an external preset pressure regulating valve and is displayed by a pressure gauge 2 on the pressure-bearing liquid storage tank 3);
step 3, connecting compressed gas (the maximum pressure of the compressed gas is 830kPa) at the compressed air inlet 12,
controlling a pulse valve 7 to enable compressed gas to enter a retention cavity 6, gasifying the liquid halogen reagent in the retention cavity 6 into halogen gas by the compressed gas, and enabling the halogen gas to be sprayed out of a gas outlet 13 along with the compressed gas in a single pulse mode and to be injected into a halogen gas injection port of an iodine adsorber test system in the detected ventilation purification system;
and 6, sampling gas upstream and downstream of an iodine adsorber in the detected ventilation and purification system while injecting halogen gas, and calculating the leakage rate of the iodine adsorber according to sampling data.
If necessary, the operation process of 4-6 steps is repeated, and the leakage rate test of the iodine adsorber can be completed by multiple pulses.
The device according to the present invention is not limited to the embodiments described in the specific embodiments, and those skilled in the art can derive other embodiments according to the technical solutions of the present invention, and also belong to the technical innovation scope of the present invention.
Claims (10)
1. A pulsed halogen gas generator comprising a pressure-bearing reservoir (3) for storing a liquid halogen reagent, characterized in that: the halogen reagent storage device is characterized by further comprising a retention cavity (6) connected with the pressure-bearing liquid storage tank (3) through a metering valve (5), wherein the metering valve (5) can introduce a fixed amount of the halogen reagent into the retention cavity (6) from the pressure-bearing liquid storage tank (3); the retention cavity (6) is also respectively connected with a compressed air inlet pipeline (14) and a gas outlet pipeline (15); the compressed air inlet pipeline (14) is used for introducing compressed air into the retention cavity (6); a pulse valve (7) is arranged on the compressed air inlet pipeline (14) and the gas outlet pipeline (15), the pulse valve (7) controls the compressed air inlet pipeline (14) and the gas outlet pipeline (15) simultaneously, and is used for controlling the flowing channel of the compressed gas, so that the compressed gas enters the retention cavity (6) from the compressed air inlet (12) and the gas in the retention cavity (6) flows out from the gas outlet (13), and the gas in the retention cavity (6) is the mixed gas of the compressed gas and the halogen gas after the halogen reagent is gasified; the compressed gas is used for gasifying the halogen reagent in the retention cavity (6) into the halogen gas and carrying the halogen gas out of the gas outlet pipeline (15).
2. The pulsed halogen gas generator as claimed in claim 1, characterized in that: the retention cavity (6) is arranged below the pressure-bearing liquid storage tank (3), the pressure-bearing liquid storage tank (3) is connected with the bottom of the pressure-bearing liquid storage tank (3) through the metering valve (5), and the pressure-bearing liquid storage tank (3) is provided with a pressure gauge (2) and a liquid level meter (4).
3. The pulsed halogen gas generator as claimed in claim 1 or 2, characterized in that: the metering valve (5) is connected with the pressure-bearing liquid storage tank (3) and the retention cavity (6) through a clamping sleeve.
4. The pulsed halogen gas generator as claimed in claim 1, characterized in that: the pulse valve (7) works in a single pulse mode.
5. The pulsed halogen gas generator as claimed in claim 1, characterized in that: a pressure reducing valve (9) and a filter (10) are arranged on the compressed air inlet pipeline (14), the filter (10) is close to the compressed air inlet (12), and the pressure reducing valve (9) is used for adjusting the pressure of compressed air from the compressed air inlet (12).
6. The pulsed halogen gas generator as claimed in claim 1, characterized in that: and a quick connector (8) is arranged on the gas outlet (13).
7. The pulsed halogen gas generator as claimed in claim 1, characterized in that: the pressure in the pressure-bearing liquid storage tank (3) is controlled by a preset pressure regulating valve arranged outside the pressure-bearing liquid storage tank (3).
8. The pulsed halogen gas generator as claimed in claim 1, characterized in that: the compressed gas is air or high-purity nitrogen.
9. The pulsed halogen gas generator as claimed in claim 1 or 8, characterized in that: the pressure of the compressed gas is at most 830 kPa.
10. The pulsed halogen gas generator as claimed in claim 1, characterized in that: the halogen reagent is Freon R-11, Freon R-12, Freon R-123, Freon R-43 or bromobutane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610594602.3A CN107655634B (en) | 2016-07-26 | 2016-07-26 | Pulse type halogen gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610594602.3A CN107655634B (en) | 2016-07-26 | 2016-07-26 | Pulse type halogen gas generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107655634A CN107655634A (en) | 2018-02-02 |
| CN107655634B true CN107655634B (en) | 2020-04-24 |
Family
ID=61126379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610594602.3A Active CN107655634B (en) | 2016-07-26 | 2016-07-26 | Pulse type halogen gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107655634B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068428B (en) * | 2019-03-29 | 2021-08-17 | 中国辐射防护研究院 | Iodine adsorber leakage rate on-line measuring system and measuring method thereof |
| CN111239334B (en) * | 2020-01-08 | 2022-10-21 | 中国辐射防护研究院 | Pulse type generation system and method for radioactive inert gas tracer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993011065A1 (en) * | 1991-11-23 | 1993-06-10 | Oxford Lasers Limited | Improvements in halogen generators |
| JPH09116214A (en) * | 1995-10-20 | 1997-05-02 | Komatsu Ltd | Gas supplying device for excimer laser device and its laser gas exchanging method, laser gas injecting method, and abnormality processing method |
| CN101879512A (en) * | 2009-05-05 | 2010-11-10 | 李文忠 | Gas pulsed generator, online scale removal method and system through gas pulse |
| CN101985598A (en) * | 2010-11-08 | 2011-03-16 | 中国人民解放军第三军医大学第三附属医院 | Dynamic three-dimensional strain culture device for tissue-engineered skin |
| JP2014129205A (en) * | 2012-12-28 | 2014-07-10 | Toshiba Corp | Ozone generating system |
| CN104048556A (en) * | 2014-06-24 | 2014-09-17 | 郑州赛为机电设备有限公司 | Pulse circulation cleaning device for heat exchanger and using method thereof |
| CN104154255A (en) * | 2013-05-13 | 2014-11-19 | 阿尔斯通技术有限公司 | High performance pulse valve |
| CN204745843U (en) * | 2015-04-27 | 2015-11-11 | 湖北永大换热设备有限公司 | Kinetic energy back flush filter |
| CN105598095A (en) * | 2016-03-23 | 2016-05-25 | 洛阳理工学院 | Gas-liquid coupling type vibration excitation testing device |
-
2016
- 2016-07-26 CN CN201610594602.3A patent/CN107655634B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993011065A1 (en) * | 1991-11-23 | 1993-06-10 | Oxford Lasers Limited | Improvements in halogen generators |
| JPH09116214A (en) * | 1995-10-20 | 1997-05-02 | Komatsu Ltd | Gas supplying device for excimer laser device and its laser gas exchanging method, laser gas injecting method, and abnormality processing method |
| CN101879512A (en) * | 2009-05-05 | 2010-11-10 | 李文忠 | Gas pulsed generator, online scale removal method and system through gas pulse |
| CN101985598A (en) * | 2010-11-08 | 2011-03-16 | 中国人民解放军第三军医大学第三附属医院 | Dynamic three-dimensional strain culture device for tissue-engineered skin |
| JP2014129205A (en) * | 2012-12-28 | 2014-07-10 | Toshiba Corp | Ozone generating system |
| CN104154255A (en) * | 2013-05-13 | 2014-11-19 | 阿尔斯通技术有限公司 | High performance pulse valve |
| CN104048556A (en) * | 2014-06-24 | 2014-09-17 | 郑州赛为机电设备有限公司 | Pulse circulation cleaning device for heat exchanger and using method thereof |
| CN204745843U (en) * | 2015-04-27 | 2015-11-11 | 湖北永大换热设备有限公司 | Kinetic energy back flush filter |
| CN105598095A (en) * | 2016-03-23 | 2016-05-25 | 洛阳理工学院 | Gas-liquid coupling type vibration excitation testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107655634A (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107655637B (en) | Pulse type halogen gas detection method and device for iodine adsorber leakage detection | |
| CN207148052U (en) | A kind of experimental provision of dynamic and static two methods detection adsorbent absorption property | |
| CN108020612B (en) | Device and method for analyzing content of trace impurities in hydrogen isotope gas and/or helium gas | |
| CN107655634B (en) | Pulse type halogen gas generator | |
| CN207248581U (en) | A kind of sampling system for being used to measure escape ammonia density total in flue gas | |
| CN105334278B (en) | Gas chromatograph inlet end trace gas controller | |
| CN105781696B (en) | A kind of automobile canister experimental rig | |
| CN202330075U (en) | Liquid container bypass continuous sampling device | |
| CN105004801A (en) | Loop heat pipe ammonia working medium purity analysis device | |
| CN104343510A (en) | Gasoline car fuel evaporation pollutant control system testing device | |
| CN205785704U (en) | Core air ventilation and purification system leakage detection apparatus | |
| CN203551272U (en) | Safety valve test and verification apparatus regulating pressure by use of pressure regulator | |
| CN103310857A (en) | Device and method for analyzing heavy suspension rules of graphite dust in high-temperature heap breach accident | |
| CN206440442U (en) | A kind of container leakage detection apparatus | |
| CN110726547A (en) | Portable comprehensive checking device for pressure protection device | |
| CN203908834U (en) | Pretreatment system for on-line coal gasification analysis sample | |
| CN113324777B (en) | Polymorphic radioactive iodine environment simulation and equipment comprehensive evaluation equipment | |
| CN202599631U (en) | Gas leakage detection system | |
| CN201765134U (en) | Sampling device of detection sensor for technical process with large-scale tanks | |
| CN202171473U (en) | Novel filter core detector | |
| CN202252842U (en) | High-pressure natural gas discharging device with self-locking function | |
| CN202040538U (en) | Pressure boost and reinjection device after sampling of particulate matter in natural gas pipe | |
| CN207019984U (en) | Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas | |
| CN109839165B (en) | Trace gas injection method and device for master control indoor leakage measurement | |
| CN111239334B (en) | Pulse type generation system and method for radioactive inert gas tracer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |