CN114894909A - Auxiliary sample introduction structure based on gas chromatograph - Google Patents
Auxiliary sample introduction structure based on gas chromatograph Download PDFInfo
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- CN114894909A CN114894909A CN202110674234.4A CN202110674234A CN114894909A CN 114894909 A CN114894909 A CN 114894909A CN 202110674234 A CN202110674234 A CN 202110674234A CN 114894909 A CN114894909 A CN 114894909A
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- pipe
- chromatographic
- gas
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- sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
Abstract
The invention discloses an auxiliary sample introduction structure based on a gas chromatograph, which comprises a base and an external connection pipe, wherein a gas carrying cylinder is installed at the top of the base, a chromatographic furnace is installed at the top of the base and positioned on one side of the gas carrying cylinder, a support is installed at the top of the base and positioned at the back of the chromatographic furnace, a chromatographic pipe is installed inside the chromatographic furnace, a sample introduction pipe is installed at one end of the chromatographic pipe, a buffer is installed at the top of the sample introduction pipe, and the external connection pipe is installed at the top of the buffer. The invention can provide support for the shell through the bracket, the shell can provide a mounting position for the online control module, the online control module can realize that a worker can control the sampling pump to sample online, and the electromagnetic pressure reducing valve can lead the worker to remotely adjust the pressure, lead the worker to realize online control and sample in the reaction device of the reaction area of the chemical plant, and can realize online sample introduction under low-pressure, medium-pressure and high-pressure modes.
Description
Technical Field
The invention relates to the technical field of gas chromatographs, in particular to an auxiliary sample introduction structure based on a gas chromatograph.
Background
The gas chromatograph is an instrument for qualitatively and quantitatively analyzing a multi-component complex mixture by utilizing a chromatographic separation technology and a detection technology, and an auxiliary sample injection structure based on the gas chromatograph can realize on-line sampling in a reaction device of a factory reaction area, meet the requirement of realizing on-line sample injection in low-pressure, medium-pressure and high-pressure modes and provide convenience for detection and analysis work.
The existing dyeing device has the following defects:
1. the traditional auxiliary sample introduction structure does not have the function of sampling in a reaction device of a reaction area of a chemical plant, enters a gas chromatograph to perform analysis of chemical components and remote online adjustment of sample introduction pressure, causes inconvenience in work comparison of workers, and cannot meet the requirement of online transmission of small tests or trial equipment products of scientific research laboratories of colleges and universities to the gas chromatograph for analysis.
2. The traditional auxiliary sample introduction structure has no facility for controlling sample introduction dosage, and can not carry out external pipelines to carry out sample introduction of other samples, so that the work of workers is inconvenient.
Disclosure of Invention
The invention aims to provide an auxiliary sample introduction structure based on a gas chromatograph, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an auxiliary sample introduction structure based on a gas chromatograph comprises a base and an external connection pipe, wherein a gas carrying cylinder is installed at the top of the base, a chromatographic furnace is installed at the top of the base and is located on one side of the gas carrying cylinder, a support is installed at the top of the base and is located at the back of the chromatographic furnace, a chromatographic pipe is installed inside the chromatographic furnace, a sample introduction pipe is installed at one end of the chromatographic pipe, a buffer is installed at the top of the sample introduction pipe, and the external connection pipe is installed at the top of the buffer;
the utility model discloses a gas carrier gas injection device, including support, on-line control module, carrier gas inlet pipe, gas outlet pipe, electromagnetic pressure reducing valve, gas carrier inlet pipe, on-line control module, the on-line control module is installed to the top of support, the internally mounted of shell has the sampling pump, and the top of carrier gas bottle installs the outlet duct, the carrier gas inlet pipe is installed to one side of outlet duct, the electromagnetic pressure reducing valve is installed in the outside of carrier gas inlet pipe.
Preferably, the top of the base is provided with a fixing hole.
Preferably, the bottom of the carrier gas inlet pipe is provided with a flow meter.
Preferably, external power cord is installed to one side of chromatographic furnace, and the roof internally mounted of chromatographic furnace has a kind vaporizer, and advances a kind vaporizer and be located the one end outside of chromatography pipe, and the detector is installed at the top of chromatographic furnace, and the detector is located the other end outside of chromatography pipe, and the amplifier is installed to one side of chromatographic furnace, and the computer is installed at the top of base, and the computer is located one side of amplifier.
Preferably, the mounting hole has been seted up in the front of support, and the input of sampling pump runs through the shell and installs the sampling tube, and the output of sampling pump is installed and is detained the pipe, and one side of detaining the pipe is installed out the appearance pipe, and power source is installed to one side of shell.
Preferably, the front of the sample inlet pipe is provided with a sample inlet valve, the top of the sample inlet pipe is provided with a buffer, the front of the buffer is provided with a liquid level meter, one side of the buffer is provided with a sample discharge pipe, and the top of the sample discharge pipe is provided with a discharge valve.
Preferably, one end of the external connecting pipe is provided with a flange joint.
Compared with the prior art, the invention has the beneficial effects that:
1. the online control system is provided with the support, the support can provide a supporting and fixing effect for the shell, the shell can provide an installation position and a protection effect for the online control module, the online control module can realize online control of sampling by a sampling pump for workers, and the electromagnetic pressure reducing valve can enable the workers to remotely adjust the pressure, so that the workers can realize online control of sampling in a reaction device of a reaction area of a chemical plant and enter a gas chromatograph, online sample introduction of samples can be realized in low-pressure, medium-pressure and high-pressure modes, and online transmission of small-scale or medium-scale equipment products of scientific research laboratories of colleges and universities to the gas chromatograph for analysis can be facilitated.
2. The sample inlet pipe is arranged, the sample inlet pipe can provide an installation position for the sample inlet valve, the sample inlet valve can control the circulation of the sample inlet pipe on line and can provide a supporting and fixing function for the buffer, the buffer can temporarily store samples and can provide an installation position for the liquid level meter, the liquid level meter can help workers to measure the samples in the buffer, the discharge valve can control the circulation of the sample discharge pipe on line, the external connection pipe can provide a passage for the samples in the external connection pipe to enter the buffer, and the flange joint can enable the workers to externally connect other pipelines to detect other samples, so that convenience can be provided for the workers.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front plan view of the present invention
FIG. 3 is a schematic structural diagram of a sampling tube according to the present invention;
FIG. 4 is a schematic view of the structure of the present invention at A;
in the figure: 1. a base; 101. a fixing hole; 2. a gas-carrying cylinder; 201. an air outlet pipe; 202. introducing carrier gas into the pipe; 203. an electromagnetic pressure reducing valve; 204. a flow rate meter; 3. a chromatographic oven; 301. connecting a power line externally; 302. a chromatography tube; 303. a sample introduction gasification chamber; 304. a detector; 305. an amplifier; 306. a computer; 4. a support; 401. mounting holes; 402. a housing; 403. a sampling pump; 404. a sampling tube; 405. a retention tube; 406. a sample outlet pipe; 407. an online control module; 408. a power interface; 5. a sample inlet pipe; 501. a sample introduction valve; 502. a buffer; 503. a liquid level meter; 504. a sample discharge pipe; 505. a discharge valve; 6. an external connection pipe; 601. and (4) a flange joint.
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.
Referring to fig. 1-4, an embodiment of the present invention is shown: an auxiliary sample introduction structure based on a gas chromatograph comprises a base 1 and an external connection pipe 6, wherein a gas carrying bottle 2 is installed at the top of the base 1, a chromatographic furnace 3 is installed at the top of the base 1, the chromatographic furnace 3 is positioned on one side of the gas carrying bottle 2, a support 4 is installed at the top of the base 1, the support 4 is positioned at the back of the chromatographic furnace 3, a chromatographic tube 302 is installed inside the chromatographic furnace 3, a sample introduction pipe 5 is installed at one end of the chromatographic tube 302, a buffer 502 is installed at the top of the sample introduction pipe 5, the external connection pipe 6 is installed at the top of the buffer 502, the base 1 can provide an installation position for the gas carrying bottle 2, the base 1 can provide a supporting and fixing effect for the chromatographic furnace 3, the chromatographic furnace 3 can provide a supporting and fixing effect for the chromatographic tube 302, the base 1 can provide an installation space for the support 4, the chromatographic tube 302 can provide a supporting and fixing effect for the sample introduction pipe 5, the sample introduction pipe 5 can provide a passage for a sample to enter a sample introduction gasification chamber 303, the sample inlet pipe 5 can provide an installation position for the buffer 502, the buffer 502 can temporarily store samples, and an installation space can be provided for the external pipe 6;
the top of the bracket 4 is provided with a shell 402, the inside of the shell 402 is provided with an online control module 407, the inside of the shell 402 is provided with a sampling pump 403, the bracket 4 can provide a supporting and fixing function for the shell 402, the shell 402 can provide an installation space for the online control module 407, the online control module 407 can perform online control on the device, the shell 402 can provide an installation position for the sampling pump 403, the sampling pump 403 can extract samples in a reaction device in a reaction area of a chemical plant, the top of the carrier gas bottle 2 is provided with an outlet pipe 201, one side of the outlet pipe 201 is provided with a carrier gas inlet pipe 202, the outer side of the carrier gas inlet pipe 202 is provided with an electromagnetic pressure reducing valve 203, the carrier gas bottle 2 can provide carrier gas required by sample injection pressure, the outlet pipe 201 can provide an exhaust channel for the carrier gas and can provide an installation position for the carrier gas inlet pipe 202, the carrier gas inlet pipe 202 can provide a channel for the carrier gas to enter the gasification chamber 303, the electromagnetic pressure reducing valve 203 can remotely perform online adjustment of the intake pressure.
Further, the top of base 1 has seted up fixed orifices 101, and base 1 can provide for fixed orifices 101 and set up the space, and fixed orifices 101 can play the effect of fixed this device with the fixed equipment cooperation.
Further, a flow meter 204 is installed at the bottom of the carrier gas inlet pipe 202, the carrier gas inlet pipe 202 can provide an installation position for the flow meter 204, and the flow meter 204 can help a worker to observe the flow speed of the carrier gas in the carrier gas inlet pipe 202.
Further, an external power line 301 is installed on one side of the chromatographic furnace 3, a sample gasification chamber 303 is installed inside the top wall of the chromatographic furnace 3, the sample gasification chamber 303 is located outside one end of the chromatographic tube 302, a detector 304 is installed on the top of the chromatographic furnace 3, the detector 304 is located outside the other end of the chromatographic tube 302, an amplifier 305 is installed on one side of the chromatographic furnace 3, a computer 306 is installed on the top of the base 1, the computer 306 is located on one side of the amplifier 305, the chromatographic furnace 3 can provide an installation position for the external power line 301, the external power line 301 can provide electric energy for the chromatographic furnace 3, the amplifier 305, the detector 304 and the computer 306, the sample gasification chamber 303 can instantaneously gasify a sample, the detector 304 can detect and analyze a sample discharged from the chromatographic tube 302 and transmit the sample to the amplifier 305, the amplifier 305 can amplify and transmit a detection result to the computer 306, the computer 306 may display the peak pattern for operator reference.
Further, mounting hole 401 has been seted up in the front of support 4, the input of sampling pump 403 runs through shell 402 and installs sampling tube 404, hold up pipe 405 is installed to sampling pump 403's output, hold up pipe 405 is installed to one side of pipe 405 and goes out appearance pipe 406, power source 408 is installed to one side of shell 402, support 4 can offer the space for mounting hole 401 provides, mounting hole 401 can play the effect of fixed bolster 4 with the fixed part cooperation, sampling pump 403 can provide the mounted position for sampling tube 404, sampling tube 404 can be under sampling pump 403's effect sample in chemical plant reaction area reaction unit, sampling pump 403 can provide the mounted position for holding up pipe 405, hold up pipe 405 can provide discharge channel and hold up the effect of impurity for the sample, it can provide the passageway that gets into in the buffer 502 for the sample to go out appearance pipe 406, power source 408 can insert the external electricity and provide the electric energy for sampling pump 403 and online control module 407.
Further, a sample introduction valve 501 is installed on the front surface of the sample introduction pipe 5, a buffer 502 is installed at the top of the sample introduction pipe 5, a liquid level meter 503 is installed on the front surface of the buffer 502, a sample discharge pipe 504 is installed on one side of the buffer 502, a discharge valve 505 is installed at the top of the sample discharge pipe 504, the sample introduction pipe 5 can provide an installation position for the sample introduction valve 501, and can provide a passage for a sample to enter the sample introduction gasification chamber 303 and the chromatographic tube 302, the sample introduction valve 501 can control the circulation of the sample introduction pipe 5, the buffer 502 can provide a temporary storage space for the sample, the liquid level meter 503 can help a worker to judge the sample measurement in the buffer 502, the sample discharge pipe 504 can provide a discharge passage for the sample in the buffer 502, and the discharge valve 505 can control the circulation of the sample discharge pipe 504.
Further, flange joint 601 is installed to the one end of external pipe 6, and external pipe 6 can provide installation space for flange joint 601, and external pipe 6 can provide the passageway that gets into in the buffer 502 for other samples, and flange joint 601 can carry out external other pipelines.
The working principle is as follows: before using the auxiliary sample introduction structure of the gas chromatograph, whether the device affects the use or not is checked, when the device is needed to be used by a worker, a fixing part is used for fixing the device at a proper position through a fixing hole 101 and a mounting hole 401, then a sampling pipe 404 is connected with a reaction device in a reaction area of a chemical plant, an external power line 301 and a power interface 408 are connected with external electricity, then the operation of a sampling pump 403 can be controlled on line for sampling a certain amount, the amount of the metered sample is judged through a liquid level meter 503, a discharge valve 505 is controlled to be opened according to actual conditions to discharge redundant samples to proper metering, then a sample introduction valve 501 can be opened to detect the samples, a peak pattern diagram is observed from a computer 306, when the product of equipment for laboratory lab scale or pilot scale is required to be transmitted to the gas chromatograph on line for analysis, the flange joint 601 is connected with a small test laboratory or a pilot plant product in a scientific research laboratory of colleges and universities.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a supplementary appearance structure of advancing based on gas chromatograph, includes base (1) and outer takeover (6), its characterized in that: the gas-carrying bottle is characterized in that a gas-carrying bottle (2) is installed at the top of a base (1), a chromatographic furnace (3) is installed at the top of the base (1), the chromatographic furnace (3) is located on one side of the gas-carrying bottle (2), a support (4) is installed at the top of the base (1), the support (4) is located at the back of the chromatographic furnace (3), a chromatographic tube (302) is installed inside the chromatographic furnace (3), a sample inlet tube (5) is installed at one end of the chromatographic tube (302), a buffer (502) is installed at the top of the sample inlet tube (5), and an external connecting tube (6) is installed at the top of the buffer (502);
the gas carrier is characterized in that a shell (402) is installed at the top of the support (4), an online control module (407) is installed inside the shell (402), a sampling pump (403) is installed inside the shell (402), a gas outlet pipe (201) is installed at the top of the gas carrier bottle (2), a carrier gas inlet pipe (202) is installed on one side of the gas outlet pipe (201), and an electromagnetic pressure reducing valve (203) is installed on the outer side of the carrier gas inlet pipe (202).
2. The auxiliary sample injection structure based on the gas chromatograph of claim 1, wherein: the top of the base (1) is provided with a fixing hole (101).
3. The auxiliary sample injection structure based on the gas chromatograph of claim 1, wherein: the bottom of the carrier gas inlet pipe (202) is provided with a flow meter (204).
4. The auxiliary sample injection structure based on the gas chromatograph of claim 1, wherein: external power cord (301) are installed to one side of chromatographic furnace (3), the roof internally mounted of chromatographic furnace (3) has and advances kind vaporizer (303), and advance the one end outside that kind vaporizer (303) are located chromatogram pipe (302), detector (304) are installed at the top of chromatographic furnace (3), and detector (304) are located the other end outside of chromatogram pipe (302), amplifier (305) are installed to one side of chromatographic furnace (3), computer (306) are installed at the top of base (1), and computer (306) are located one side of amplifier (305).
5. The auxiliary sample injection structure based on the gas chromatograph of claim 1, wherein: mounting hole (401) have been seted up in the front of support (4), and sampling tube (404) are installed in the input of sample pump (403) through shell (402), and detention pipe (405) are installed to the output of sample pump (403), and play appearance pipe (406) are installed to one side of detention pipe (405), and power source (408) are installed to one side of shell (402).
6. The auxiliary sample injection structure based on the gas chromatograph of claim 1, wherein: sampling valve (501) are installed in the front of advance appearance pipe (5), and buffer (502) are installed at the top of advance appearance pipe (5), and level gauge (503) are installed in the front of buffer (502), and row appearance pipe (504) are installed to one side of buffer (502), and discharge valve (505) are installed at the top of row appearance pipe (504).
7. The auxiliary sample injection structure based on the gas chromatograph of claim 1, wherein: and one end of the external connecting pipe (6) is provided with a flange joint (601).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110674234.4A CN114894909A (en) | 2021-06-17 | 2021-06-17 | Auxiliary sample introduction structure based on gas chromatograph |
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| CN202110674234.4A CN114894909A (en) | 2021-06-17 | 2021-06-17 | Auxiliary sample introduction structure based on gas chromatograph |
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| CN114894909A true CN114894909A (en) | 2022-08-12 |
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