CN109342124B - Gas sampling detection device for laboratory - Google Patents
Gas sampling detection device for laboratory Download PDFInfo
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- CN109342124B CN109342124B CN201811498985.XA CN201811498985A CN109342124B CN 109342124 B CN109342124 B CN 109342124B CN 201811498985 A CN201811498985 A CN 201811498985A CN 109342124 B CN109342124 B CN 109342124B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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Abstract
The invention discloses a gas sampling detection device for a laboratory, which comprises a detection cylinder, wherein a fixed cylinder is arranged at the bottom of one end of the detection cylinder, a first connecting cylinder is arranged on the surface of the bottom of the detection cylinder, a second connecting cylinder is arranged on the surface of the top of the fixed cylinder, a sealing ring is arranged between the bottom of the first connecting cylinder and the surface of the fixed cylinder, an air inlet pipe is arranged at the bottom of the fixed cylinder, a sealing plug is arranged in the fixed cylinder, a push rod is arranged at the top of the sealing plug, and a spring is arranged on the surface of the push rod. According to the invention, the spring is arranged to push the sealing plug, the air inlet pipe at the bottom of the fixed cylinder is blocked and sealed by using the sealing plug, when gas detection is carried out, the movable cylinder is pulled by using the pull rod to move in the detection cylinder to drive the piston to move, the push rod is pulled by using the connecting wire to drive the sealing plug to ascend, and gas to be detected is sucked into the detection cylinder, so that the pollution in the sample gas detection process is prevented, and the detection precision is improved.
Description
Technical Field
The invention relates to the technical field of gas detection, in particular to a gas sampling detection device for a laboratory.
Background
Can detect the gas that the experiment produced in the laboratory, the most structure function singleness of present gaseous collection detection device is injecting the gaseous sample of collection into the in-process of other equipment, can pollute gaseous sample inevitable, and sampling detection device need clean in the device after accomplishing the gaseous sampling of a sample and detection achievement, can just carry out the measuring of next sample, and the cleaning process is comparatively loaded down with trivial details, seriously influences test efficiency.
Therefore, it is necessary to invent a gas sampling and detecting device for a laboratory to solve the above problems.
Disclosure of Invention
The invention aims to provide a gas sampling detection device for a laboratory, which solves the problems in the background technology by arranging a sealing plug in a fixed cylinder, utilizing a movable cylinder to move in a detection cylinder, driving a connecting wire to pull a push rod, driving the sealing plug to compress a spring, sucking a gas cylinder to be detected into the detection cylinder and matching an electrochemical sensor to detect.
In order to achieve the purpose, the invention provides the following technical scheme: a gas sampling detection device for a test room comprises a detection cylinder, wherein a fixed cylinder is arranged at the bottom of one end of the detection cylinder, a first connecting cylinder is arranged on the surface of the bottom of the detection cylinder, a second connecting cylinder is arranged on the surface of the top of the fixed cylinder, a sealing ring is arranged between the bottom of the first connecting cylinder and the surface of the fixed cylinder, an air inlet pipe is arranged at the bottom of the fixed cylinder, a sealing plug is arranged in the fixed cylinder, a push rod is arranged at the top of the sealing plug, a spring is arranged on the surface of the push rod, a movable cylinder is arranged in the detection cylinder, a pull rod is arranged at one end of the movable cylinder, a piston is arranged on the surface of the other end of the movable cylinder, a connecting wire is arranged between the movable cylinder and the push rod, a guide rod is arranged in the detection cylinder, the fan is arranged inside one end of the detection cylinder, and the air outlet is formed in the top surface of the other end of the detection cylinder.
Preferably, a handle is arranged at one end of the detection cylinder, an anti-skid rubber ring is arranged on the surface of the handle, and the anti-skid rubber ring is sleeved with the handle.
Preferably, the first connecting cylinder is in threaded connection with the second connecting cylinder, and the sealing ring is sleeved with the second connecting cylinder.
Preferably, the sealing plug is movably connected with the fixed cylinder, and the spring is sleeved with the push rod.
Preferably, the movable cylinder is sleeved with the detection cylinder, and the piston is movably connected with the detection cylinder.
Preferably, the mounting seat is in threaded connection with an electrochemical sensor, and the electrochemical sensor is sleeved with the movable cylinder.
The invention has the technical effects and advantages that:
(1) according to the invention, the spring is arranged to push the sealing plug, the air inlet pipe at the bottom of the fixed cylinder is blocked and sealed by using the sealing plug, when gas detection is carried out, the movable cylinder is pulled by using the pull rod to move in the detection cylinder to drive the piston to move, the push rod is pulled by using the connecting wire to drive the sealing plug to ascend, the spring is compressed, gas to be detected is sucked into the detection cylinder, and the gas is detected by using the electrochemical sensor in the detection cylinder, so that the pollution in the gas detection process of a sample is prevented, and the detection precision is improved;
(2) according to the invention, the fan is arranged, after the detection of a sample gas is finished, the piston is pulled to one side of the gas outlet, so that the gas in the detection cylinder can be discharged from the gas outlet, the fan is utilized to drive the gas to move rapidly, after the previous sample gas is completely discharged, the spring is used for pushing the sealing plug to restore, the connecting wire is pulled to drive the movable cylinder to restore, and the electrochemical sensor is connected with the mounting seat through the threads, so that the electrochemical sensor is convenient to replace, the device is beneficial to rapid cleaning, the cleaning efficiency is greatly improved, and the next sample can be conveniently detected.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side sectional view of the detecting cartridge of the present invention;
FIG. 3 is a schematic view of the structure of part A of FIG. 1 according to the present invention;
in the figure: the device comprises a detection cylinder 1, a fixed cylinder 2, a first connecting cylinder 3, a second connecting cylinder 4, a sealing ring 5, an air inlet pipe 6, a sealing plug 7, a push rod 8, a spring 9, a movable cylinder 10, a pull rod 11, a piston 12, a connecting wire 13, a guide rod 14, a mounting seat 15, an electrochemical sensor 16, a fan 17, an air outlet 18, a handle 19 and an anti-skid rubber ring 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a gas sampling detection device for a laboratory, which is shown in figures 1-3 and comprises a detection cylinder 1, wherein a fixed cylinder 2 is arranged at the bottom of one end of the detection cylinder 1, a first connecting cylinder 3 is arranged on the surface of the bottom of the detection cylinder 1, a second connecting cylinder 4 is arranged on the surface of the top of the fixed cylinder 2, a sealing ring 5 is arranged between the bottom of the first connecting cylinder 3 and the surface of the fixed cylinder 2, an air inlet pipe 6 is arranged at the bottom of the fixed cylinder 2, a sealing plug 7 is arranged in the fixed cylinder 2, a push rod 8 is arranged at the top of the sealing plug 7, a spring 9 is arranged on the surface of the push rod 8, a movable cylinder 10 is arranged in the detection cylinder 1, a pull rod 11 is arranged at one end of the movable cylinder 10, a piston 12 is arranged on the surface of the other end of the movable cylinder 10, a connecting wire 13 is arranged between the movable cylinder 10, the bottom of the inner wall of the detection cylinder 1 is provided with a mounting seat 15, an electrochemical sensor 16 is arranged in the mounting seat 15, the electrochemical sensor 9 comprises one or more of a carbon dioxide concentration sensor, a nitrogen dioxide electrochemical sensor and a carbon monoxide electrochemical sensor, a fan 17 is arranged in one end of the detection cylinder 1, and an air outlet 18 is formed in the top surface of the other end of the detection cylinder 1.
Further, in the above technical scheme, a handle 19 is arranged at one end of the detection cylinder 1, an anti-slip rubber ring 20 is arranged on the surface of the handle 19, and the anti-slip rubber ring 20 is sleeved with the handle 19, so that the device is convenient to hold and use;
further, in the above technical solution, the first connecting cylinder 3 is in threaded connection with the second connecting cylinder 4, and the seal ring 5 is in sleeve connection with the second connecting cylinder 4, so that the sealing connection effect is improved, and the fixing cylinder 2 is convenient to disassemble;
further, in the above technical solution, the sealing plug 7 is movably connected with the fixed cylinder 2, the spring 9 is sleeved with the push rod 8, and the plug 5 blocks and seals the bottom of the fixed cylinder 2 under the thrust of the spring 9;
further, in the above technical solution, the movable cylinder 10 is sleeved with the detection cylinder 1, the piston 12 is movably connected with the detection cylinder 1, so that the pull rod 11 can pull the movable cylinder 10 to move in the detection cylinder 1 to drive the piston 12 to move, and the gas to be detected is sucked into the detection cylinder 1 when the internal pressure of the detection cylinder 1 is smaller than the external pressure;
further, in the above technical solution, the mounting seat 15 is in threaded connection with the electrochemical sensor 16, and the electrochemical sensor 16 is sleeved with the movable cylinder 10, so that the electrochemical sensor 16 is protected conveniently, and the electrochemical sensor 16 is convenient to detach and mount;
further, in the above technical solution, the model of the carbon dioxide concentration sensor is set as G01-CO2-B3, the model of the nitrogen dioxide electrochemical sensor is set as 4NO2-20 CLE-0321-.
This practical theory of operation:
referring to the attached drawings 1-3 of the specification, an air inlet pipe 6 is inserted into a container for storing sample gas, a sealing plug 5 is pushed by a spring 9 to plug and seal the bottom of a fixed cylinder 2, when gas detection is carried out, a pull rod 11 is used for pulling a movable cylinder 10 to move in a detection cylinder 1 to drive a piston 12 to move, a connecting wire 13 is used for pulling a push rod 8 to drive the sealing plug 6 to ascend, the spring 9 is compressed, gas to be detected is sucked into the detection cylinder 1 through the fact that the internal gas pressure of the detection cylinder 1 is smaller than the external gas pressure, an electrochemical sensor 16 in the detection cylinder 1 is used for detecting the gas, the sample gas is prevented from being polluted in the detection process, and the detection precision is improved;
referring to the attached drawings 1 or 3 of the specification, after a sample gas is detected, the pull rod 11 is pulled, the piston 12 is pulled to one side of the gas outlet 18, so that the gas in the detection cylinder 1 can be discharged from the gas outlet 18, the fan 17 is used for driving the gas to move rapidly, after the previous sample gas is completely discharged, the spring 9 is used for pushing the sealing plug 7 to restore, the connecting wire 13 is pulled to drive the movable cylinder 10 to restore, when the electrochemical sensor 16 is replaced, the first connecting cylinder 3 or the second connecting cylinder 4 is rotated, the fixed cylinder 2 is detached, the connecting wire 13 is disconnected with the push rod 8, the movable cylinder 10 is detached again, the original electrochemical sensor 16 is rotated, the original electrochemical sensor 16 is detached, the replaced electrochemical sensor 16 is connected with the mounting seat 15 by threads, the replacement of the electrochemical sensor 16 is realized, the cleaning is convenient and rapid, and the cleaning efficiency is greatly improved, the detection of the next sample is convenient.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. A gas sampling test device for a laboratory, comprising a test cartridge (1), characterized in that: the detection device is characterized in that a fixed cylinder (2) is arranged at the bottom of one end of the detection cylinder (1), a first connecting cylinder (3) is arranged on the surface of the bottom of the detection cylinder (1), a second connecting cylinder (4) is arranged on the surface of the top of the fixed cylinder (2), a sealing ring (5) is arranged between the bottom of the first connecting cylinder (3) and the surface of the fixed cylinder (2), an air inlet pipe (6) is arranged at the bottom of the fixed cylinder (2), a sealing plug (7) is arranged in the fixed cylinder (2), a push rod (8) is arranged at the top of the sealing plug (7), a spring (9) is arranged on the surface of the push rod (8), a movable cylinder (10) is arranged in the detection cylinder (1), a pull rod (11) is arranged at one end of the movable cylinder (10), a piston (12) is arranged on the surface of the other end of the movable cylinder (10), and, a guide rod (14) is arranged in the detection cylinder (1), a mounting seat (15) is arranged at the bottom of the inner wall of the detection cylinder (1), an electrochemical sensor (16) is arranged in the mounting seat (15), a fan (17) is arranged in one end of the detection cylinder (1), and an air outlet (18) is arranged on the top surface of the other end of the detection cylinder (1); the first connecting cylinder (3) is in threaded connection with the second connecting cylinder (4), and the sealing ring (5) is sleeved with the second connecting cylinder (4); the sealing plug (7) is movably connected with the fixed cylinder (2), the spring (9) is sleeved with the push rod (8), and the sealing plug (7) blocks and seals the bottom of the fixed cylinder (2) under the thrust of the spring (9).
2. A gas sampling test device for a laboratory according to claim 1 wherein: the detection device is characterized in that a handle (19) is arranged at one end of the detection cylinder (1), an anti-slip rubber ring (20) is arranged on the surface of the handle (19), and the anti-slip rubber ring (20) is sleeved with the handle (19).
3. A gas sampling test device for a laboratory according to claim 1 wherein: the movable cylinder (10) is sleeved with the detection cylinder (1), and the piston (12) is movably connected with the detection cylinder (1).
4. A gas sampling test device for a laboratory according to claim 1 wherein: the mounting seat (15) is in threaded connection with the electrochemical sensor (16), and the electrochemical sensor (16) is sleeved with the movable cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498985.XA CN109342124B (en) | 2018-12-08 | 2018-12-08 | Gas sampling detection device for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498985.XA CN109342124B (en) | 2018-12-08 | 2018-12-08 | Gas sampling detection device for laboratory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109342124A CN109342124A (en) | 2019-02-15 |
| CN109342124B true CN109342124B (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811498985.XA Active CN109342124B (en) | 2018-12-08 | 2018-12-08 | Gas sampling detection device for laboratory |
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| CN (1) | CN109342124B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455594B (en) * | 2019-08-29 | 2024-07-09 | 贵州大学 | Gas sample collection device |
| CN110686724B (en) * | 2019-09-04 | 2022-09-13 | 国网浙江省电力有限公司嘉兴供电公司 | High-voltage circuit breaker gas detection device and method based on ubiquitous power Internet of things |
| CN111521663B (en) * | 2020-04-29 | 2022-09-27 | 安徽工业大学 | Gas collection and measurement device, electrochemical analysis and measurement system and measurement method |
| CN113436835B (en) * | 2021-06-25 | 2023-02-17 | 广东电网有限责任公司 | Power transformer and explosion-proof method thereof |
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| CN114749015B (en) * | 2021-06-30 | 2023-05-05 | 艾感科技(广东)有限公司 | Purifying device |
| CN113466412B (en) * | 2021-06-30 | 2022-10-04 | 艾感科技(广东)有限公司 | Calibration method and system for detecting gas |
| CN114173909B (en) * | 2021-06-30 | 2023-08-01 | 艾感科技(广东)有限公司 | Self-starting purification device based on environmental change |
| CN113702587B (en) * | 2021-08-26 | 2024-05-14 | 江苏泰洁检测技术股份有限公司 | Device for measuring volatile organic compounds in solid waste |
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| CN107764608A (en) * | 2017-12-01 | 2018-03-06 | 周航洋 | A kind of air detection timing sampling equipment |
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| CN207894679U (en) * | 2017-12-27 | 2018-09-21 | 河南宜测科技有限公司 | A kind of double gas circuit air samplers of experiment detection |
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| CN207456873U (en) * | 2017-09-19 | 2018-06-05 | 东北林业大学 | A kind of vehicle exhaust environmental protection sampling apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203053762U (en) * | 2012-12-19 | 2013-07-10 | 深圳市建筑科学研究院有限公司 | Passive air sampler capable of being timed |
| JP2014228308A (en) * | 2013-05-20 | 2014-12-08 | 独立行政法人石油天然ガス・金属鉱物資源機構 | Pressurized sample supply device and analyzer |
| CN204255706U (en) * | 2014-10-15 | 2015-04-08 | 安徽理工大学 | A kind of push button gas sampler |
| RU2625234C1 (en) * | 2016-10-28 | 2017-07-12 | Акционерное общество "Лётно-исследовательский институт имени М.М. Громова" | Device for selecting air samples in engine nacelles of aircraft gas turbine engines |
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| CN109342124A (en) | 2019-02-15 |
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