CN211263186U - Detection system for concentration of hydrogen sulfide and sulfur dioxide gas - Google Patents
Detection system for concentration of hydrogen sulfide and sulfur dioxide gas Download PDFInfo
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- CN211263186U CN211263186U CN201921949911.3U CN201921949911U CN211263186U CN 211263186 U CN211263186 U CN 211263186U CN 201921949911 U CN201921949911 U CN 201921949911U CN 211263186 U CN211263186 U CN 211263186U
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Abstract
The utility model discloses a detecting system of hydrogen sulfide and sulfur dioxide gas concentration relates to gaseous detection technical field. The detection system comprises a three-way electromagnetic valve, a sulfur dioxide washing device, a hydrogen sulfide converter and a main body detection chamber, wherein a first gas port of the three-way electromagnetic valve is used for receiving gas to be detected, a second gas port of the three-way electromagnetic valve is connected with the main body detection chamber, a third gas port of the three-way electromagnetic valve is connected with the sulfur dioxide washing device, the sulfur dioxide washing device is connected with the hydrogen sulfide converter, the hydrogen sulfide converter is connected with the main body detection chamber, an ultraviolet light source, a monochromator and a photomultiplier are arranged in the main body detection chamber, ultraviolet light generated by the ultraviolet light source irradiates the gas to be detected in the main body detection chamber after passing through the monochromator, and the photomultiplier is used for detecting the concentration of sulfur dioxide in the gas to be. The utility model discloses a detecting system can detect hydrogen sulfide and the gaseous concentration of sulfur dioxide simultaneously.
Description
Technical Field
The utility model relates to a gaseous detection technology field especially relates to a detecting system of hydrogen sulfide and sulfur dioxide gas concentration.
Background
Hydrogen sulfide in the air is an atmospheric pollutant, is a toxic and stink colorless gas, and causes headache and dizziness when 0.1 percent of hydrogen sulfide is contained in the air. When large amounts of hydrogen sulfide are inhaled, coma and even death can result. It can cause chronic poisoning, worsen feeling, headache, emaciation, etc. when it contacts hydrogen sulfide. Therefore, real-time monitoring of hydrogen sulfide has become a necessity for modern industrial development.
Currently, petroleum and petrochemical industry, natural gas, chemical industry, steel and the like are developing towards industrialization and automation at a high speed, and the safety problem is always one of the problems to be solved urgently in the industrial development. At present, the research on the detection of the hydrogen sulfide at home and abroad is very important, and the real-time detection of the concentration of the hydrogen sulfide gas has great significance for guaranteeing the production safety. In addition to hydrogen sulfide, sulfur dioxide is also an important contaminant. In the prior art, hydrogen sulfide and sulfur dioxide need to be separately detected, so that the efficiency is low, and the equipment cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem how to provide a detection system that can detect hydrogen sulfide and sulfur dioxide simultaneously.
In order to solve the above problem, an embodiment of the present invention provides a system for detecting concentration of hydrogen sulfide and sulfur dioxide gas, the system for detecting concentration of hydrogen sulfide and sulfur dioxide gas comprises a three-way solenoid valve, a sulfur dioxide scrubber, a hydrogen sulfide converter and a main body detection chamber, a first gas port of the three-way solenoid valve is used for receiving a gas to be detected, a second gas port of the three-way solenoid valve is connected to the main body detection chamber, a third gas port of the three-way solenoid valve is connected to the sulfur dioxide scrubber, the sulfur dioxide scrubber is connected to the hydrogen sulfide converter, the hydrogen sulfide converter is connected to the main body detection chamber, wherein an ultraviolet light source, a monochromator and a photomultiplier are arranged in the main body detection chamber, ultraviolet light generated by the ultraviolet light source irradiates the gas to be detected in the main body detection chamber after passing through the monochromator, the photomultiplier is used for detecting the concentration of sulfur dioxide in the gas to be detected.
The detection system for the concentration of the hydrogen sulfide and sulfur dioxide gas further comprises a first three-way joint and a hydrocarbon removal pipe, wherein a first gas port of the first three-way joint is connected with the hydrocarbon removal pipe, and a second gas port of the first three-way joint is connected with a first gas port of the three-way electromagnetic valve.
The further technical scheme is that the detection system for the concentration of the hydrogen sulfide and sulfur dioxide gas further comprises a flow meter and a flow limiting device, wherein the flow meter is connected with the main body detection chamber, and the flow limiting device is respectively connected with the flow meter and a third gas port of the first three-way joint.
The detection system for the concentration of the hydrogen sulfide and sulfur dioxide gas further comprises a second three-way joint and a sampling pump, wherein a first gas port of the second three-way joint is connected with the hydrocarbon removing pipe, and a second gas port of the second three-way joint is connected with the sampling pump.
The detection system for the concentration of the hydrogen sulfide and sulfur dioxide gas further comprises a third tee joint and a filter, a first gas port of the third tee joint is connected with a third gas port of the second tee joint, a second gas port of the third tee joint is connected with the filter, a third gas port of the third tee joint is used for receiving standard gas, and the filter is used for receiving gas to be detected.
The further technical scheme is that the detection system for the concentration of the hydrogen sulfide and sulfur dioxide gas further comprises a pressure sensor, the flowmeter is connected with the main body detection chamber through a pipeline, and the pressure sensor is arranged on the pipeline.
The further technical scheme is that the detection system for the concentration of the hydrogen sulfide and sulfur dioxide gas further comprises an exhaust port, and the exhaust port is connected with the sampling pump.
The further technical scheme is that the ultraviolet light source is a pulse xenon lamp.
Compared with the prior art, the utility model discloses the technical effect that can reach includes:
the ultraviolet light source of the detection system adopts a pulse xenon lamp, and compared with a common zinc lamp, the pulse xenon lamp has the characteristics of stronger light intensity and longer service life. The light intensity is larger, and the detection limit of the detection system is lower; the service life of the light source is longer, and the cost for replacing the light source of the detection system can be reduced.
The detection system can simultaneously detect SO2Concentration of (A) and H2The concentration of S can be set according to actual requirements, so that the multifunctional water heater can be used for multiple purposes.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a detection system for the concentration of hydrogen sulfide and sulfur dioxide gas provided by the embodiment of the present invention.
Reference numerals
The device comprises a three-way electromagnetic valve 10, a sulfur dioxide scrubber 20, a hydrogen sulfide converter 30, a main body detection chamber 40, a first three-way joint 50, a hydrocarbon removal pipe 60, a flow meter 70, a flow limiting device 80, a second three-way joint 90, a sampling pump 100, a third three-way joint 110, a filter 120, a pressure sensor 130 and an exhaust port 140.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like component numbers represent like components. It is obvious that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1, the embodiment of the present invention provides a detection system for hydrogen sulfide and sulfur dioxide gas concentration, which includes a three-way solenoid valve 10, a sulfur dioxide scrubber 20, a hydrogen sulfide converter 30 and a main body detection chamber 40.
The first gas port a of the three-way electromagnetic valve 10 is used for receiving a gas to be detected, the second gas port b of the three-way electromagnetic valve 10 is connected with the main body detection chamber 40, the third gas port c of the three-way electromagnetic valve 10 is connected with the sulfur dioxide scrubber 20, the sulfur dioxide scrubber 20 is connected with the hydrogen sulfide converter 30, and the hydrogen sulfide converter 30 is connected with the main body detection chamber 40.
The sulfur dioxide scrubber 20 is used to remove sulfur dioxide from the gas to be tested. The hydrogen sulfide converter 30 is used for converting hydrogen sulfide in the gas to be measured into sulfur dioxide. The main body detection chamber 40 is used for detecting the concentration of sulfur dioxide in the gas to be detected.
Be equipped with ultraviolet source, monochromator (being used for leaving 214 nm's ultraviolet ray behind the light source filtering) and photomultiplier in main part detection room 40, the ultraviolet ray that ultraviolet source produced passes through shine behind the monochromator gaseous that awaits measuring in the main part detection room 40, photomultiplier is used for detecting sulfur dioxide's concentration in the gaseous that awaits measuring. It should be noted that the ultraviolet light irradiates sulfur dioxide to cause the sulfur dioxide to generate fluorescence, and the photomultiplier determines the concentration of the sulfur dioxide according to the intensity of the detected fluorescence.
The embodiment of the utility model provides an in, through the switching of control three solenoid valve 10, can control system be the detection SO2Or also detecting H2And S, detecting the two gases.
With continued reference to fig. 1, in this embodiment, the system for detecting the concentration of hydrogen sulfide and sulfur dioxide gas further includes a first three-way joint 50, a hydrocarbon removal pipe 60, a flow meter 70, a flow restriction device 80, a second three-way joint 90, a sampling pump 100, a third three-way joint 110, a filter 120, a pressure sensor 130, and an exhaust outlet 140.
The first gas port d of the first three-way joint 50 is connected to the hydrocarbon removing pipe 60, and the second gas port e of the first three-way joint 50 is connected to the first gas port of the three-way solenoid valve 10. The flow meter 70 is connected to the main body detection chamber 40, and the flow restriction device 80 is connected to the flow meter 70 and the third gas port f of the first three-way joint 50, respectively. The first gas port g of the second three-way joint 90 is connected to the hydrocarbon removing pipe 60, and the second gas port h of the second three-way joint 90 is connected to the sampling pump 100. The first gas port j of the third three-way joint 110 is connected with the third gas port i of the second three-way joint 90, the second gas port k of the third three-way joint 110 is connected with the filter 120, the third gas port l of the third three-way joint 110 is used for receiving standard gas, and the filter 120 is used for receiving gas to be detected. The exhaust port 140 is connected to the sampling pump 100.
Description of the working principle: the gas to be measured enters a hydrocarbon removing pipe 60 after passing through a filter 120 to remove the interference of aromatic hydrocarbon compounds, then enters a three-way electromagnetic valve 10, one way of the electromagnetic valve enters a sulfur dioxide scrubber 20, and SO in the sample gas is removed in the sulfur dioxide scrubber 202The gas enters the hydrogen sulfide converter 30, and H in the gas to be measured in the hydrogen sulfide converter 302S is oxidized into SO at high temperature (270 ℃ C. -2SO formed by oxidation2Enters the main body detection chamber 40, and the tail gas flows through the flow limiting device 80 after being detected by the ultraviolet fluorescence methodAfter pressure measurement monitoring, the sample is pumped out of the instrument by a sampling pump 100; when the three-way electromagnetic valve 10 is switched to the other way, the diameter of the gas to be detected enters the main body detection chamber 40, and SO in the sample gas2After being irradiated by ultraviolet light of 214nm in a detection chamber, the fluorescent light is emitted, and the intensity of the emitted fluorescent light is converted into SO after being detected by a photomultiplier tube2The tail gas passes through the flow limiting device 80, and is pumped out of the instrument by the sampling pump 100 after the flow and pressure are monitored. By controlling the switching of the three-way solenoid valve 10, the instrument can be controlled to detect SO2Or also detecting H2S; or the electromagnetic valve can be automatically switched after a fixed time interval, and SO can be detected simultaneously2And H2S。
Further, the flow meter 70 is connected to the main body detection chamber 40 through a pipeline, and the pressure sensor 130 is disposed in the pipeline and is configured to detect the air pressure in the pipeline.
Further, the ultraviolet light source is a pulse xenon lamp. The ultraviolet light source of the detection system adopts a pulse xenon lamp, and compared with a common zinc lamp, the pulse xenon lamp has the characteristics of stronger light intensity, longer service life, higher light intensity and lower detection limit of the detection system; the service life of the light source is longer, and the cost for replacing the light source of the detection system can be reduced.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description is for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A detection system for the concentration of hydrogen sulfide and sulfur dioxide gas is characterized by comprising a three-way electromagnetic valve, a sulfur dioxide scrubber, a hydrogen sulfide converter and a main body detection chamber, a first gas port of the three-way electromagnetic valve is used for receiving gas to be detected, a second gas port of the three-way electromagnetic valve is connected with the main body detection chamber, the third gas port of the three-way electromagnetic valve is connected with the sulfur dioxide scrubber, the sulfur dioxide scrubber is connected with the hydrogen sulfide converter, the hydrogen sulfide converter is connected with the main body detection chamber, the main part detects indoor ultraviolet source, monochromator and photomultiplier that is equipped with, the ultraviolet ray that ultraviolet source produced passes through after the monochromator shine the indoor gas that awaits measuring of main part detection, photomultiplier is used for detecting sulfur dioxide's concentration in the gas that awaits measuring.
2. The system for detecting the concentration of hydrogen sulfide and sulfur dioxide gas as claimed in claim 1, further comprising a first three-way joint and a hydrocarbon removing pipe, wherein a first gas port of the first three-way joint is connected to the hydrocarbon removing pipe, and a second gas port of the first three-way joint is connected to the first gas port of the three-way solenoid valve.
3. The system for detecting the concentration of hydrogen sulfide and sulfur dioxide gas as claimed in claim 2, further comprising a flow meter and a flow restriction device, wherein the flow meter is connected to the main body detection chamber, and the flow restriction device is respectively connected to the flow meter and the third gas port of the first three-way joint.
4. The system for detecting the concentration of hydrogen sulfide and sulfur dioxide gas as claimed in claim 3, further comprising a second tee joint and a sampling pump, wherein a first gas port of the second tee joint is connected with the hydrocarbon removing pipe, and a second gas port of the second tee joint is connected with the sampling pump.
5. The system for detecting the concentration of hydrogen sulfide and sulfur dioxide gas as claimed in claim 4, further comprising a third tee joint and a filter, wherein the first gas port of the third tee joint is connected with the third gas port of the second tee joint, the second gas port of the third tee joint is connected with the filter, the third gas port of the third tee joint is used for receiving standard gas, and the filter is used for receiving gas to be detected.
6. The system for detecting the concentration of hydrogen sulfide and sulfur dioxide gas as claimed in claim 5, further comprising a pressure sensor, wherein the flow meter is connected to the main body detection chamber through a pipeline, and the pressure sensor is disposed on the pipeline.
7. The system for detecting the concentration of hydrogen sulfide and sulfur dioxide gas as claimed in claim 6, further comprising an exhaust port connected to the sampling pump.
8. The system for detecting the concentration of hydrogen sulfide and sulfur dioxide gas as claimed in claim 7, wherein the ultraviolet light source is a pulsed xenon lamp.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949911.3U CN211263186U (en) | 2019-11-12 | 2019-11-12 | Detection system for concentration of hydrogen sulfide and sulfur dioxide gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921949911.3U CN211263186U (en) | 2019-11-12 | 2019-11-12 | Detection system for concentration of hydrogen sulfide and sulfur dioxide gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486826A (en) * | 2021-12-29 | 2022-05-13 | 聚光科技(杭州)股份有限公司 | Multi-gas detection device and method |
| CN114965853A (en) * | 2021-02-20 | 2022-08-30 | 中国石油化工股份有限公司 | Combustible gas combustion reaction device and concentration detection system of hydrogen sulfide in hydrogen |
-
2019
- 2019-11-12 CN CN201921949911.3U patent/CN211263186U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965853A (en) * | 2021-02-20 | 2022-08-30 | 中国石油化工股份有限公司 | Combustible gas combustion reaction device and concentration detection system of hydrogen sulfide in hydrogen |
| CN114486826A (en) * | 2021-12-29 | 2022-05-13 | 聚光科技(杭州)股份有限公司 | Multi-gas detection device and method |
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Inventor after: Zhong Yingjuan Inventor after: Zhang Jian Inventor after: Ge Yanhong Inventor after: Xie Guangqun Inventor after: He Li Inventor after: Sheng Yanbo Inventor after: Wu Wenbao Inventor before: Li Manyuan |
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| CB03 | Change of inventor or designer information |