CN213715139U - Gas flow device for sample of gas chromatograph - Google Patents
Gas flow device for sample of gas chromatograph Download PDFInfo
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- CN213715139U CN213715139U CN202023138558.6U CN202023138558U CN213715139U CN 213715139 U CN213715139 U CN 213715139U CN 202023138558 U CN202023138558 U CN 202023138558U CN 213715139 U CN213715139 U CN 213715139U
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- fixedly connected
- gas
- gas chromatograph
- vaporization
- sample
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Abstract
The utility model belongs to the technical field of the gas chromatograph, especially, be a gas flow device of gas chromatograph sample, including the vaporization case, the inside wall fixed mounting of vaporization case has the electrode heating pipe, the top fixedly connected with collecting hopper of vaporization case, the top fixedly connected with fixed plate of collecting hopper, the top fixedly connected with backup pad of fixed plate, the top fixed mounting of backup pad has sampling device, pipeline fixedly connected with gas chromatograph body is passed through to one side of vaporization case. The utility model discloses a cooperation of connecting rod and piston can provide the power that liquid flows, through the cooperation of first check valve and second check valve, can form a one-way liquid channel, and then can inject the inside of vaporization case with the sample liquid injection in the storage bottle under connected state, has effectually avoided during the outside air sneaks into the sample liquid, has improved the accuracy of testing result, very is favorable to the use.
Description
Technical Field
The utility model relates to a gas chromatograph technical field specifically is a gas chromatograph sample gas circulation device.
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 circulation device for the sample of the gas chromatograph in the current market has the following problems:
1. in the prior art, most of sample gas is extracted and injected through a separate injector, so that external air is easily mixed into the sample in the process, the accuracy of a detection result is seriously influenced, and the use is very unfavorable;
2. in the prior art, sample gas is generated by vaporizing sample liquid in a vaporizing chamber, the vaporizing chamber of a gas circulating device mostly does not have heat preservation and corrosion resistance, the vaporizing efficiency of the sample liquid is not high, and meanwhile, the vaporizing chamber is easy to corrode and is not very beneficial to use.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a gas chromatograph sample gas circulation device has solved prior art, sneaks into air easily in the sample gas and vaporizing chamber can not keep warm and corrosion-resistant problem.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a gas circulation device for a gas chromatograph sample comprises a vaporization box, wherein an electrode heating pipe is fixedly arranged on the inner side wall of the vaporization box, a collecting hopper is fixedly connected to the top of the vaporization box, a fixed plate is fixedly connected to the top of the collecting hopper, a supporting plate is fixedly connected to the top of the fixed plate, a sample injection device is fixedly arranged at the top of the supporting plate, a gas chromatograph body is fixedly connected to one side of the vaporization box through a pipeline, a connecting pipe is fixedly connected to the other side of the vaporization box, a gas carrying bottle is fixedly arranged at one end of the connecting pipe, the vaporization box comprises a shell, a heat insulation layer is fixedly connected to the surface of the shell, an anti-corrosion layer is fixedly connected to the surface of the heat insulation layer, the sample injection device comprises a storage bottle, a first check valve is fixedly connected to the bottom of, the inner wall sliding connection of body has the piston, the one end fixedly connected with connecting rod of piston, the one end fixedly connected with second check valve of body, the output of second check valve runs through the top of fixed plate and extends to the inside of collecting hopper.
As an optimal technical scheme of the utility model, the one end fixedly connected with ejector pad of connecting rod, the surface of ejector pad is provided with the rubber pad.
As a preferred technical scheme of the utility model, the inner wall fixedly connected with observation frame of body, the surface of observation frame is provided with the scale mark.
As a preferred technical scheme of the utility model, the fixed surface of connecting pipe is connected with the barometer, the one end fixedly connected with relief valve of connecting pipe, the one end fixed mounting carrier gas bottle of relief valve.
As an optimized technical scheme of the utility model, the one end fixedly connected with manual valve of relief valve, the one end fixed mounting of manual valve has the carrier gas bottle.
As an optimal technical scheme of the utility model, the heat preservation is the asbestos line, the corrosion-resistant layer is the fluorocarbon finish.
(III) advantageous effects
Compared with the prior art, the utility model provides a gas chromatograph sample gas circulation device possesses following beneficial effect:
1. this gas flow device of gas chromatograph sample through the cooperation of connecting rod and piston, can provide the power that liquid flows, through the cooperation of first check valve and second check valve, can form a one-way liquid channel, and then can inject the inside into the vaporization case with the sample liquid injection in the storage bottle under connection status, has effectually avoided during external air sneaks into sample liquid, has improved the accuracy of testing result, very is favorable to the use.
2. This gas chromatograph sample gas circulation device through setting up the heat preservation, can be very big improvement vaporization incasement portion's heat insulating ability for the vaporization efficiency of sample liquid obtains further promotion, through setting up corrosion resistant layer, can effectively improve the corrosion resistance of vaporization case, has increased the life of vaporization case, very is favorable to the use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the vaporization tank of the present invention;
fig. 3 is the structure schematic diagram of the sample feeding device of the present invention.
In the figure: 1. a vaporization tank; 101. a housing; 102. a heat-insulating layer; 103. a corrosion-resistant layer; 2. an electrode heating tube; 3. a collection hopper; 4. a fixing plate; 5. a support plate; 6. a sample introduction device; 601. a material storage bottle; 602. a first check valve; 603. a pipe body; 604. a piston; 605. a connecting rod; 606. a push block; 607. an observation frame; 608. a second one-way valve; 7. a gas chromatograph body; 8. a connecting pipe; 9. a gas-carrying cylinder; 10. a barometer; 11. a pressure relief valve; 12. and (4) a manual valve.
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, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-3, the present invention provides the following technical solutions: a gas circulation device for a sample of a gas chromatograph comprises a vaporization box 1, wherein an electrode heating pipe 2 is fixedly arranged on the inner side wall of the vaporization box 1, a collecting hopper 3 is fixedly connected to the top of the vaporization box 1, a fixing plate 4 is fixedly connected to the top of the collecting hopper 3, a supporting plate 5 is fixedly connected to the top of the fixing plate 4, a sample injection device 6 is fixedly arranged on the top of the supporting plate 5, a gas chromatograph body 7 is fixedly connected to one side of the vaporization box 1 through a pipeline, a connecting pipe 8 is fixedly connected to the other side of the vaporization box 1, a gas carrying bottle 9 is fixedly arranged at one end of the connecting pipe 8, the vaporization box 1 comprises a shell 101, a heat preservation layer 102 is fixedly connected to the surface of the shell 101, a corrosion-resistant layer 103 is fixedly connected to the surface of the heat preservation layer 102, the sample injection device 6 comprises a storage bottle 601, the inner wall of the tube 603 is slidably connected with a piston 604, one end of the piston 604 is fixedly connected with a connecting rod 605, one end of the tube 603 is fixedly connected with a second one-way valve 608, and an output end of the second one-way valve 608 penetrates through the top of the fixing plate 4 and extends into the collecting hopper 3.
In this embodiment, cooperation through connecting rod 605 and piston 604, can provide the power that liquid flows, cooperation through first check valve 602 and second check valve 608, can form a one-way liquid channel, and then can inject the inside of vaporization case 1 with the sample liquid in storage bottle 601 under the connection state, the effectual external air of having avoided sneaks into in the sample liquid, the accuracy of testing result has been improved, through setting up heat preservation 102, the inside heat insulating ability of improvement vaporization case 1 that can be very big, make the vaporization efficiency of sample liquid obtain further promotion, through setting up corrosion-resistant layer 103, can effectively improve the corrosion resistance of vaporization case 1, the life of vaporization case 1 has been increased, very be favorable to the use.
Specifically, one end of the connecting rod 605 is fixedly connected with a pushing block 606, and a rubber pad is arranged on the surface of the pushing block 606.
In this embodiment, the pushing block 606 is provided to facilitate the user to operate the connecting rod 605.
Specifically, the inner wall of the tube 603 is fixedly connected with an observation frame 607, and the surface of the observation frame 607 is provided with scale marks.
In this embodiment, the observation frame 607 is provided to facilitate the user to quantitatively take the sample liquid.
Specifically, the surface of the connecting pipe 8 is fixedly connected with a barometer 10, one end of the connecting pipe 8 is fixedly connected with a pressure release valve 11, and one end of the pressure release valve 11 is fixedly provided with a gas carrying bottle 9.
In this embodiment, the barometer 10 is provided to facilitate the user to know the stability of the air pressure inside the device, and the relief valve 11 is provided to maintain the stability of the air pressure inside the device.
Specifically, one end of the pressure release valve 11 is fixedly connected with a manual valve 12, and one end of the manual valve 12 is fixedly installed with the gas carrier bottle 9.
In this embodiment, the manual valve 12 is provided to facilitate the user to control the input of the carrier gas.
Specifically, the heat insulating layer 102 is made of asbestos threads, and the corrosion-resistant layer 103 is made of fluorocarbon finish.
In this embodiment, the asbestos cord has high temperature resistance and heat-proof quality, and the fluorocarbon finish has splendid corrosion-resistant, through compound the use, can effectual reinforcing vaporization case 1's performance.
The utility model discloses a theory of operation and use flow: when a user samples a sample liquid, the user holds the push block 606 and pulls the push block upwards, the push block 606 pulls the connecting rod 605, the connecting rod 605 drives the piston 604, the piston 604 moves and forms a negative pressure at one end of the tube 603, the sample liquid in the storage bottle 601 enters the tube 603 through the first one-way valve 602 under the action of pressure, the user selects a proper amount of sample liquid through the observation frame 607 and pushes the push block 606 reversely, the sample liquid enters the collecting hopper 3 through the second one-way valve 608 under the action of pressure and enters the vaporization box 1 under the guidance of the collecting hopper 3, the user opens the electrode heating pipe 2, the electrode heating pipe 2 heats the sample liquid, the sample liquid is continuously vaporized to form a sample gas, the manual valve 12 is opened, the carrier gas in the carrier gas bottle 9 enters the vaporization box 1 from one side, and the sample gas in the vaporization box 1 is pushed to enter the gas chromatograph body 7 from the other side, through the heat preservation 102 that uses the asbestos cord to constitute, can improve vaporization case 1's heat insulating ability for the vaporization efficiency of sample liquid obtains further promotion, through the corrosion-resistant layer 103 that uses the fluorocarbon finish to constitute, can improve vaporization case 1's corrosion resistance, has effectively increased the practicality of equipment.
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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a gas flow device of gas chromatograph sample, includes vaporization case (1), its characterized in that: the electrode heating pipe (2) is fixedly mounted on the inner side wall of the vaporization box (1), the collecting hopper (3) is fixedly connected to the top of the vaporization box (1), the fixing plate (4) is fixedly connected to the top of the collecting hopper (3), the supporting plate (5) is fixedly connected to the top of the fixing plate (4), the sample injection device (6) is fixedly mounted at the top of the supporting plate (5), the gas chromatograph body (7) is fixedly connected to one side of the vaporization box (1) through a pipeline, the connecting pipe (8) is fixedly connected to the other side of the vaporization box (1), the gas carrying cylinder (9) is fixedly mounted at one end of the connecting pipe (8), the vaporization box (1) comprises a shell (101), the heat preservation layer (102) is fixedly connected to the surface of the shell (101), and the corrosion-resistant layer (103) is fixedly connected to, sampling device (6) are including storage bottle (601), the first check valve (602) of bottom fixedly connected with of storage bottle (601), the output fixedly connected with body (603) of first check valve (602), the inner wall sliding connection of body (603) has piston (604), the one end fixedly connected with connecting rod (605) of piston (604), the one end fixedly connected with second check valve (608) of body (603), the output of second check valve (608) runs through the top of fixed plate (4) and extends to the inside of collecting hopper (3).
2. A gas chromatograph sample gas flow arrangement according to claim 1, characterized by: one end of the connecting rod (605) is fixedly connected with a pushing block (606), and a rubber pad is arranged on the surface of the pushing block (606).
3. A gas chromatograph sample gas flow arrangement according to claim 1, characterized by: the inner wall fixedly connected with observation frame (607) of body (603), the surface of observation frame (607) is provided with the scale mark.
4. A gas chromatograph sample gas flow arrangement according to claim 1, characterized by: the surface fixed connection of connecting pipe (8) has barometer (10), the one end fixed connection of connecting pipe (8) has relief valve (11), the one end fixed mounting of relief valve (11) carries gas cylinder (9).
5. The gas flow-through apparatus of claim 4, wherein: one end of the pressure release valve (11) is fixedly connected with a manual valve (12), and one end of the manual valve (12) is fixedly provided with a gas carrying bottle (9).
6. A gas chromatograph sample gas flow arrangement according to claim 1, characterized by: the heat-insulating layer (102) is made of asbestos threads, and the corrosion-resistant layer (103) is made of fluorocarbon finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023138558.6U CN213715139U (en) | 2020-12-23 | 2020-12-23 | Gas flow device for sample of gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023138558.6U CN213715139U (en) | 2020-12-23 | 2020-12-23 | Gas flow device for sample of gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213715139U true CN213715139U (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023138558.6U Expired - Fee Related CN213715139U (en) | 2020-12-23 | 2020-12-23 | Gas flow device for sample of gas chromatograph |
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| CN (1) | CN213715139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655139A (en) * | 2021-07-30 | 2021-11-16 | 常州市佳华电子有限公司 | Remote control analysis system for gas chromatographic analysis of transformer oil |
-
2020
- 2020-12-23 CN CN202023138558.6U patent/CN213715139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655139A (en) * | 2021-07-30 | 2021-11-16 | 常州市佳华电子有限公司 | Remote control analysis system for gas chromatographic analysis of transformer oil |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210716 Termination date: 20211223 |