CN212060097U

CN212060097U - Gas chromatograph with high detection efficiency

Info

Publication number: CN212060097U
Application number: CN202020702643.1U
Authority: CN
Inventors: 任杰
Original assignee: Chongqing Zhener Medical Research Institute Co ltd
Current assignee: Chongqing Zhener Medical Research Institute Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-01
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a gas chromatograph that detection efficiency is high, including box, sample intake pipe and chromatographic column, peg graft at box upper end middle part has the sample intake pipe, sample intake pipe bottom is connected with the heating sleeve through the draw-in groove, the heating sleeve bottom is connected with through the draw-in groove the chromatographic column, it has the heater strip to peg graft to add the heating sleeve inside wall. Has the advantages that: the utility model discloses a set up heating sleeve, heater strip, can treat the liquid material that detects and heat up, make its rapid gasification to accelerate gas diffusion rate, improve the detection efficiency of device, through setting up valve and quartz cotton, can close the mouth of pipe of sample intake pipe immediately after the filling gas, avoid gaseous loss, can protect sample intake pipe wall simultaneously, avoid gas to receive the pollution, guarantee to detect gaseous cleanliness factor, improve and detect the precision.

Description

Gas chromatograph with high detection efficiency

Technical Field

The utility model relates to a gas chromatograph technical field, concretely relates to gas chromatograph that detection efficiency is high.

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 can be generally used for analyzing organic matters which are thermally stable in soil and have a boiling point of not more than 500 ℃, such as volatile organic matters, organic chlorine, organic phosphorus, polycyclic aromatic hydrocarbons, phthalate esters and the like.

The gas chromatography is a chromatographic analysis method using gas as a mobile phase, is mainly used for separating and analyzing volatile substances, is one of extremely important separation and analysis methods, and is widely applied to the fields of medicine and health, petrochemical industry, environmental monitoring, biochemistry and the like.

The object that waits to detect that present includes liquid material, need gasify it when using gas chromatograph to detect, and liquid heating intensifies slowly, can not gasify fast, influences detection efficiency, and present waiting to detect gas in addition when pouring into gas chromatograph, the gas can be followed the mouth of pipe and escaped, and syringe and pipe wall contact can gaseous pollution when pouring into, reduces gaseous cleanliness factor, influences gaseous detection precision.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the gas chromatograph with high detection efficiency is provided, and the problems that the existing object to be detected contains liquid substances, the object needs to be gasified when the gas chromatograph is used for detection, and the liquid is heated slowly and cannot be gasified quickly, so that the detection efficiency is influenced are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a gas chromatograph that detection efficiency is high, including box, sample intake pipe and chromatographic column, peg graft at box upper end middle part has the sample intake pipe, sample intake pipe bottom is connected with the heating sleeve through the draw-in groove, the heating sleeve bottom is connected with through the draw-in groove the chromatographic column, it has the heater strip to peg graft to add the heating sleeve inside wall.

Furthermore, the upper end of the sample air inlet pipe is connected with a valve through a clamping groove, and quartz wool is bonded on the inner wall of the sample air inlet pipe close to the valve.

Through adopting above-mentioned technical scheme, through the box provides the outrigger, treats that the gas that detects gasifies and detects, treats that it passes through to detect the gas sample intake pipe is annotated in the box, get into through the pipeline separation, test are carried out in the chromatographic column, can close immediately after the gas of filling through the valve the mouth of pipe of sample intake pipe avoids gaseous loss, improves and detects the precision, passes through simultaneously quartz wool is right sample intake pipe wall is protected, avoids gaseous to receive the pollution, guarantees to detect gaseous cleanliness factor, through the heater strip produces the heat, thereby makes heating sleeve generates heat, treats that the gas that detects heats up, makes gaseous rapid gasification, improves the detection efficiency of device.

Furthermore, a flow disperser is connected to one side of the sample air inlet pipe through a pipeline, and a flow meter is connected to one side of the flow disperser through a pipeline.

Through adopting above-mentioned technical scheme, through the deconcentrator that flows separates the blowing to gas, the gaseous detection of being convenient for.

Furthermore, one side of the flowmeter is connected with a pressure gauge through a pipeline, and one side of the pressure gauge is connected with a pressure regulator through a pipeline.

By adopting the technical scheme, the pressure of the carrier gas is adjusted by the pressure regulator, the gas pressure of the carrier gas is displayed by the pressure gauge, and the speed of the carrier gas is adjusted by the flowmeter, so that the carrier gas sends the gas to be detected into the chromatographic column at stable pressure and constant speed for detection, and the detection precision is improved.

Furthermore, there is a purifying and drying pipe on one side of the pressure regulator through a pipeline, there is a pressure reducing valve on one side of the purifying and drying pipe through a pipeline, and there is a high-pressure steel cylinder on one side of the pressure reducing valve through a pipeline.

By adopting the technical scheme, the carrier gas is stored in the high-pressure steel cylinder, so that the gas to be detected can be conveniently pushed, the pressure of the carrier gas in the high-pressure steel cylinder is reduced by the pressure reducing valve, and the carrier gas is purified by the purifying and drying pipe.

Further, chromatographic column one end has the detector through the clamp connection, flow the deconcentrator with the detector passes through the pipe connection.

Through adopting above-mentioned technical scheme, through the detector detects the analysis to gas to it goes out to change the signal of telecommunication transmission.

Furthermore, a recorder is electrically connected to one side of the detector, and a cover plate is connected to the upper end of the box body through a hinge.

By adopting the technical scheme, the recorder records data to obtain a chromatographic outflow curve, and the cover plate protects the box body to ensure the cleanliness in the box body.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1. in order to solve the problems that the existing object to be detected contains liquid substances, the liquid needs to be gasified when the gas chromatograph is used for detection, the liquid is heated slowly and cannot be gasified quickly, and the detection efficiency is influenced, the utility model discloses a heating sleeve and a heating wire are arranged, the liquid substances to be detected can be heated and heated, so that the liquid substances are gasified quickly, the gas diffusion rate is accelerated, and the detection efficiency of the device is improved;

2. treat gaseous when pouring into gas chromatograph for solving current, the gas can be followed the mouth of pipe and escaped, and syringe and pipe wall contact meeting polluted gas when pouring into, reduce gaseous cleanliness factor, influence the problem of gaseous detection precision, the utility model discloses a set up valve and quartz cotton, can close the mouth of pipe of sample intake pipe immediately after the filling gas, avoid gaseous loss, can protect sample intake pipe wall simultaneously, avoid gaseous receiving the pollution, guarantee to detect gaseous cleanliness factor, improve and detect the precision.

Drawings

Fig. 1 is a schematic structural diagram of a gas chromatograph with high detection efficiency according to the present invention;

fig. 2 is a connection relationship diagram of a sample inlet pipe, a heating sleeve pipe and a heating wire in a gas chromatograph with high detection efficiency according to the present invention;

fig. 3 is a connection relation diagram of sample intake pipe, valve and quartz wool in a gas chromatograph with high detection efficiency.

The reference numerals are explained below:

1. a cover plate; 2. a sample inlet pipe; 3. a valve; 4. a detector; 5. a recorder; 6. a box body; 7. a chromatographic column; 8. a flow disperser; 9. a flow meter; 10. a pressure gauge; 11. a pressure regulator; 12. a purifying and drying pipe; 13. a pressure reducing valve; 14. a high-pressure steel cylinder; 15. heating wires; 16. heating the sleeve; 17. and (4) quartz wool.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, the gas chromatograph with high detection efficiency in this embodiment includes a box 6, a sample inlet tube 2 and a chromatographic column 7, the sample inlet tube 2 is inserted in the middle of the upper end of the box 6, the bottom end of the sample inlet tube 2 is connected to a heating sleeve 16 through a clamping groove, the bottom end of the heating sleeve 16 is connected to the chromatographic column 7 through a clamping groove, a heating wire 15 is inserted in the inner wall of the heating sleeve 16, the upper end of the sample inlet tube 2 is connected to a valve 3 through a clamping groove, quartz wool 17 is bonded to the inner wall of the sample inlet tube 2 near the valve 3, the box 6 provides a stable support for performing gasification detection on a gas to be detected, the gas to be detected is filled into the box 6 through the sample inlet tube 2, enters the chromatographic column 7 through a pipeline for separation and test, the nozzle of the sample inlet tube, improve and detect the precision, protect 2 pipe walls in sample intake pipe through quartz cotton 17 simultaneously, avoid gas to receive the pollution, guarantee the cleanliness factor that detects gas, produce the heat through heater strip 15, thereby make heating sleeve 16 generate heat, treat to detect gas and heat up, make gaseous gasification fast, improve device's detection efficiency, there is flow disperser 8 sample intake pipe 2 one side through the pipe connection, there is flowmeter 9 flow disperser 8 one side through the pipe connection, separate the blowing through flow disperser 8 to gas, the gaseous detection of being convenient for.

As shown in fig. 1, in the present embodiment, a pressure gauge 10 is connected to the flow meter 9 side through a pipe, a pressure regulator 11 is connected to the pressure gauge 10 side through a pipe, the pressure of the carrier gas is adjusted by a pressure regulator 11, and the gas pressure of the carrier gas is displayed by a pressure gauge 10, meanwhile, the flow meter 9 is used for adjusting the speed of the carrier gas, so that the carrier gas sends the gas to be detected into the chromatographic column 7 at stable pressure and constant speed for detection, the detection precision is improved, one side of the pressure regulator 11 is connected with a purifying and drying pipe 12 through a pipeline, one side of the purifying and drying pipe 12 is connected with a pressure reducing valve 13 through a pipeline, one side of the pressure reducing valve 13 is connected with a high-pressure steel cylinder 14 through a pipeline, the carrier gas is stored in the high-pressure steel cylinder 14, so that the gas to be detected can be pushed conveniently, the pressure of the carrier gas in the high-pressure steel cylinder 14 is reduced through the pressure reducing valve 13, and the carrier gas is purified through the purifying and drying pipe 12.

As shown in fig. 1, in this embodiment, there is detector 4 chromatographic column 7 one end through the clamp connection, and flowing disperser 8 passes through the pipe connection with detector 4, detects the analysis through detector 4 to gas to change signal of telecommunication and go out, and detector 4 one side is connected with register 5 through the electricity, and there is apron 1 box 6 upper end through hinge connection, through register 5 record data, reachs chromatogram outflow curve, protects box 6 through apron 1, guarantees the cleanliness factor in the box 6.

The specific implementation process of this embodiment is as follows: when the device is used, the device is connected with an external power supply, then gas to be detected is filled into the box body 6 through the sample gas inlet pipe 2, the high-pressure steel cylinder 14 is opened at the same time, carrier gas is released, the pressure of the carrier gas is reduced through the pressure reducing valve 13, the carrier gas is purified through the purifying and drying pipe 12, the pressure regulator 11 is used for stabilizing the pressure of the carrier gas, the carrier gas is enabled to be sent into the chromatographic column 7 at stable pressure and constant speed through the pressure gauge 10 and the flowmeter 9, then separation and test are carried out in the chromatographic column 7, the valve 3 is closed immediately after the filling of the gas to be detected is finished, the gas escape is avoided, the detection precision is improved, meanwhile, the pipe wall of the sample gas inlet pipe 2 is protected through the quartz wool 17, the gas is prevented from being polluted, the cleanliness of the detected gas is ensured, in, thereby make heating sleeve 16 generate heat, make its rapid heating up gasification to accelerate its diffusion rate, improve the detection efficiency of device, carry out the detection and analysis to gas through detector 4, and convert electrical signal transmission and go out, through 5 record data of record ware, thereby reachs chromatogram outflow curve, then carries out quantitative analysis, after the device uses, lid apron 1.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. A gas chromatograph with high detection efficiency is characterized in that: including box (6), sample intake pipe (2) and chromatographic column (7), it has to peg graft in the middle part of box (6) upper end sample intake pipe (2), sample intake pipe (2) bottom is connected with heating sleeve (16) through the draw-in groove, heating sleeve (16) bottom is connected with through the draw-in groove chromatographic column (7), it has heater strip (15) to peg graft in heating sleeve (16) inner wall.

2. The gas chromatograph of claim 1 having high detection efficiency, wherein: the sample intake pipe (2) upper end is connected with valve (3) through the draw-in groove, sample intake pipe (2) inner wall is close to valve (3) department bonds and has quartz cotton (17).

3. The gas chromatograph of claim 1 having high detection efficiency, wherein: one side of the sample air inlet pipe (2) is connected with a flow disperser (8) through a pipeline, and one side of the flow disperser (8) is connected with a flow meter (9) through a pipeline.

4. A gas chromatograph with high detection efficiency according to claim 3, characterized in that: one side of the flowmeter (9) is connected with a pressure gauge (10) through a pipeline, and one side of the pressure gauge (10) is connected with a pressure regulator (11) through a pipeline.

5. The gas chromatograph of claim 4 having high detection efficiency, wherein: pressure regulator (11) one side has purification drying pipe (12) through the pipe connection, purification drying pipe (12) one side has relief pressure valve (13) through the pipe connection, relief pressure valve (13) one side has high-pressure steel bottle (14) through the pipe connection.

6. A gas chromatograph with high detection efficiency according to claim 3, characterized in that: chromatographic column (7) one end has detector (4) through the clamp connection, flow disperser (8) with detector (4) pass through the pipe connection.

7. The gas chromatograph of claim 6, having a high detection efficiency, wherein: detector (4) one side is connected with register (5) through the electricity, box (6) upper end is through hinge connection has apron (1).