CN213337489U

CN213337489U - Special gas chromatograph for chemical laboratory

Info

Publication number: CN213337489U
Application number: CN202022797664.9U
Authority: CN
Inventors: 王国凡
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-06-01
Anticipated expiration: 2030-11-27

Abstract

The utility model relates to the technical field of gas chromatograph, and a dedicated gas chromatograph of chemistry experiment room is disclosed, the on-line screen storage device comprises a base, the gas chromatograph main part has been placed to the upper end of base, the upper end fixedly connected with a plurality of bracing piece of base, the common fixedly connected with roof in upper end of a plurality of bracing piece, the upper end fixedly connected with fixed cylinder and liquid reserve tank of roof, communicate each other through the pipe on the lateral wall that liquid reserve tank and fixed cylinder are close to the lower extreme, install the check valve on the pipe, install agitating unit on the liquid reserve tank, the liquid reserve tank is close to the lateral wall of upper end and is fixed the intercommunication and have the feed liquor pipe, install the ration in the fixed cylinder and get the liquid device, the lower extreme of feed liquor pipe is fixed the intercommunication and has the fluid; the quantitative liquid taking device comprises a threaded sleeve, and a screw rod is connected with the inner thread of the threaded sleeve. The utility model discloses make and to guarantee the reliability of testing result effectively.

Description

Special gas chromatograph for chemical laboratory

Technical Field

The utility model relates to a gas chromatograph technical field especially relates to a dedicated gas chromatograph in chemistry experiment room.

Background

The gas chromatograph is an instrument for qualitatively and quantitatively analyzing a multi-component complex mixture by using a chromatographic separation technology and a detection technology. The method can be used for analyzing heat-stable organic matters with the boiling point not more than 500 ℃ in soil, such as volatile organic matters, organic chlorine, organic phosphorus, polycyclic aromatic hydrocarbons, phthalate esters and the like.

In a chemical laboratory, when a gas chromatograph is used for detecting some liquids, the detected liquids may be precipitated, so that the detection error is large, and when the liquids are put into the gas chromatograph again, too much or too little liquids are easily put into the gas chromatograph, and the reliability of the detection result is also affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art, in the chemistry experiment room, when using gas chromatograph to detect some liquid, the measured liquid probably takes place to deposit, leads to detection error great, puts into gas chromatograph with liquid in addition and detects time, also puts into too much or too little liquid easily, also can influence the reliability problem of testing result, and the dedicated gas chromatograph in chemistry experiment room that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a gas chromatograph special for a chemical laboratory comprises a base, wherein a gas chromatograph main body is placed at the upper end of the base, a plurality of support rods are fixedly connected to the upper end of the base, a top plate is fixedly connected to the upper ends of the support rods together, a fixed cylinder and a liquid storage tank are fixedly connected to the upper end of the top plate, the side walls, close to the lower end, of the liquid storage tank and the fixed cylinder are mutually communicated through a guide pipe, a one-way valve is installed on the guide pipe, a stirring device is installed on the liquid storage tank, a liquid inlet pipe is fixedly communicated with the side wall, close to the upper end, of the liquid storage tank, a quantitative liquid taking device is installed in the fixed cylinder, the lower end of the liquid inlet pipe is fixedly communicated with a liquid outlet pipe, and the lower end of;

the liquid device is got to ration includes threaded sleeve, threaded sleeve rotates through first bearing and connects the upper end opening part at solid fixed cylinder, threaded sleeve female connection has the screw rod, the lower extreme of screw rod passes threaded sleeve's nozzle and downwardly extending, and fixed connection has the movable plate, the lower extreme of movable plate is through the common fixedly connected with piston of two connecting rods, sliding connection between piston and the solid fixed cylinder, a plurality of air vent has been seted up on the lateral wall that solid fixed cylinder is close to the upper end.

Preferably, agitating unit includes driving motor, driving motor fixed connection is in the outer upper end center department of liquid reserve tank, driving motor's output fixedly connected with dwang, the dwang rotates between through two second bearings and liquid reserve tank to be connected, a plurality of puddler of fixedly connected with on the dwang, two the second bearing sets up for sealed bearing.

Preferably, two slide rails are fixedly connected in the fixed cylinder, a slide block is connected on the slide rails in a sliding manner, and the side wall of the slide block is fixedly connected on the corresponding side wall of the moving plate.

Preferably, the upper end outside the threaded sleeve is fixedly connected with a rotating handle, and the rotating handle is provided with anti-skid grains.

Preferably, the upper end of the liquid inlet pipe is fixedly communicated with a funnel.

Preferably, the four corners of the lower end of the base are fixedly connected with supporting legs.

Compared with the prior art, the utility model provides a dedicated gas chromatograph in chemistry experiment room possesses following beneficial effect:

1. the special gas chromatograph for the chemical laboratory is characterized in that the special gas chromatograph is provided with a base, a supporting rod, a top plate, a fixed cylinder, a liquid storage tank, a guide pipe, a check valve, a liquid inlet pipe, a liquid discharge pipe, a gas chromatograph main body, a threaded sleeve, a screw rod, a movable plate and a piston, when the gas chromatograph main body is required to be used for detecting and analyzing liquid, the liquid is added into the liquid storage tank, then the liquid is fully mixed through a stirring mechanism, then the threaded sleeve is rotated reversely, the screw rod drives the movable plate and the piston below the movable plate to move upwards under the action of threads, the liquid in the liquid storage tank enters the fixed cylinder through the guide pipe and the check valve under the action of air pressure, then the threaded sleeve is rotated forwards, the piston moves downwards, and then the quantitative liquid in the fixed cylinder is discharged to the detection end of the gas chromatograph main body through the liquid discharge pipe, so that the proper quantitative liquid to be detected, so that the reliability of the detection result can be effectively ensured.

2. This dedicated gas chromatograph in chemistry experiment room, through setting up driving motor, dwang and puddler, when needs carry out the misce bene to being surveyed liquid, start driving motor, driving motor drives the dwang and rotates, and the dwang drives a plurality of puddlers and rotates for can carry out the intensive mixing to being surveyed liquid in the liquid storage tank, make the testing result more accurate.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses make can guarantee the reliability of testing result effectively.

Drawings

Fig. 1 is a schematic front view of a gas chromatograph dedicated for a chemical laboratory according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the device comprises a base 1, a support rod 2, a top plate 3, a fixed cylinder 4, a liquid storage tank 5, a guide pipe 6, a check valve 7, a liquid inlet pipe 8, a liquid discharge pipe 9, a gas chromatograph main body 10, a threaded sleeve 11, a screw rod 12, a movable plate 13, a piston 14, a driving motor 15, a rotating rod 16, a stirring rod 17, a sliding rail 18, a sliding block 19, a rotating handle 20, anti-skid threads 21, a funnel 22 and a support leg 23.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a dedicated gas chromatograph for a chemical laboratory comprises a base 1, a gas chromatograph main body 10 is placed at the upper end of the base 1, a plurality of support rods 2 are fixedly connected to the upper end of the base 1, a top plate 3 is fixedly connected to the upper ends of the support rods 2, a fixed cylinder 4 and a liquid storage tank 5 are fixedly connected to the upper end of the top plate 3, the liquid storage tank 5 and the fixed cylinder 4 are communicated with each other through a guide pipe 6 on the side wall close to the lower end, a one-way valve 7 is installed on the guide pipe 6, a stirring device is installed on the liquid storage tank 5, a liquid inlet pipe 8 is fixedly communicated on the side wall close to the upper end of the liquid storage tank 5, a quantitative liquid taking device is installed in the fixed cylinder 4, a liquid outlet pipe 9 is fixedly communicated with the lower end of the liquid inlet pipe;

the quantitative liquid taking device comprises a threaded sleeve 11, the threaded sleeve 11 is rotatably connected to an opening at the upper end of a fixed cylinder 4 through a first bearing, a screw 12 is connected to the threaded sleeve 11 in a threaded manner, the lower end of the screw 12 penetrates through a cylinder opening of the threaded sleeve 11 and extends downwards and is fixedly connected with a movable plate 13, the lower end of the movable plate 13 is fixedly connected with a piston 14 through two connecting rods, the piston 14 is in sliding connection with the fixed cylinder 4, a plurality of vent holes are formed in the side wall, close to the upper end, of the fixed cylinder 4, when the liquid needs to be detected and analyzed by using a gas chromatograph main body 10, the liquid is added into a liquid storage tank 5, the liquid is fully mixed through a stirring mechanism, then the threaded sleeve 11 is rotated reversely, under the action of threads, the screw 12 drives the movable plate 13 and the piston 14 below the movable plate to move upwards, and under the action of air pressure, the liquid in the liquid storage tank 5 enters, then, the threaded sleeve 11 is rotated forward again, so that the piston 14 moves downward, and further, the quantitative liquid in the fixed cylinder 4 is discharged to the detection end of the gas chromatograph main body 10 through the liquid discharge pipe 9, so that the appropriate quantitative liquid to be detected can be added to the gas chromatograph main body 10, and the reliability of the detection result can be effectively ensured.

Agitating unit includes driving motor 15, driving motor 15 fixed connection is in the outer upper end center department of liquid reserve tank 5, driving motor 15's output fixedly connected with dwang 16, dwang 16 rotates between through two second bearings and liquid reserve tank 5 to be connected, fixedly connected with a plurality of puddler 17 on the dwang 16, two second bearings are the seal bearing setting, when needs carry out the misce bene to being surveyed liquid, start driving motor 15, driving motor 15 drives dwang 16 and rotates, dwang 16 drives a plurality of puddler 17 and rotates, make and carry out the intensive mixing to being surveyed liquid in the liquid reserve tank 5, make the testing result more accurate.

Two slide rails 18 are fixedly connected in the fixed cylinder 4, a slide block 19 is connected on the slide rails 18 in a sliding manner, and the side wall of the slide block 19 is fixedly connected to the corresponding side wall of the moving plate 13, so that the moving plate 13 is more stable and reliable in the moving process.

The upper end outside the threaded sleeve 11 is fixedly connected with a rotating handle 20, and the rotating handle 20 is provided with anti-skid threads 21, so that the threaded sleeve 11 can be conveniently rotated.

The upper end of the liquid inlet pipe 8 is fixedly communicated with a funnel 22, so that liquid can be conveniently added into the liquid storage box 5 through the liquid inlet pipe 8.

Supporting legs 23 are fixedly connected to four corners of the lower end of the base 1, and the whole device is supported.

In the utility model, when the gas chromatograph main body 10 is used to detect and analyze the liquid, the liquid is added into the liquid storage box 5, then the liquid is fully mixed by the stirring mechanism, then the threaded sleeve 11 is rotated reversely, under the action of the thread, the screw 12 drives the movable plate 13 and the piston 14 therebelow to move upwards, under the action of the air pressure, the liquid in the liquid storage box 5 enters the fixed cylinder 4 through the conduit 6 and the one-way valve 7, then the threaded sleeve 11 is rotated forwardly, so that the piston 14 moves downwards, further the quantitative liquid in the fixed cylinder 4 is discharged to the detection end of the gas chromatograph main body 10 through the liquid discharge pipe 9, so that the proper quantitative liquid to be detected can be added into the gas chromatograph main body 10, the reliability of the detection result can be effectively ensured, when the liquid to be detected needs to be uniformly mixed, the driving motor 15 is started, driving motor 15 drives dwang 16 and rotates, and dwang 16 drives a plurality of puddlers 17 and rotates for can carry out the intensive mixing to the measured liquid in the liquid reserve tank 5, make the testing result more accurate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The special gas chromatograph for the chemical laboratory comprises a base (1) and is characterized in that a gas chromatograph main body (10) is placed at the upper end of the base (1), a plurality of supporting rods (2) are fixedly connected to the upper end of the base (1), a plurality of top plates (3) are fixedly connected to the upper ends of the supporting rods (2) together, a fixing cylinder (4) and a liquid storage tank (5) are fixedly connected to the upper end of each top plate (3), the liquid storage tank (5) and the fixing cylinder (4) are communicated with each other through a guide pipe (6) on the side wall close to the lower end, a one-way valve (7) is installed on each guide pipe (6), a stirring device is installed on each liquid storage tank (5), a liquid inlet pipe (8) is fixedly communicated with the side wall close to the upper end of each liquid storage tank (5), a quantitative liquid inlet device is installed in each fixing cylinder (4), and a liquid outlet pipe (9) is fixedly, the lower end of the liquid discharge pipe (9) penetrates through the top plate (3) and extends to the corresponding position of the gas chromatograph main body (10);

the liquid device is got to ration includes threaded sleeve (11), threaded sleeve (11) rotate through first bearing and connect the upper end opening part at solid fixed cylinder (4), threaded sleeve (11) internal thread connection has screw rod (12), the lower extreme of screw rod (12) passes the nozzle and the downwardly extending of threaded sleeve (11), and fixed connection has movable plate (13), the lower extreme of movable plate (13) is through two common fixedly connected with pistons (14) of connecting rod, sliding connection between piston (14) and solid fixed cylinder (4), gu fixed cylinder (4) have seted up a plurality of air vent on being close to the lateral wall of upper end.

2. The special gas chromatograph for chemical laboratories according to claim 1, wherein the stirring device comprises a driving motor (15), the driving motor (15) is fixedly connected to the upper center outside the liquid storage tank (5), the output end of the driving motor (15) is fixedly connected with a rotating rod (16), the rotating rod (16) is rotatably connected to the liquid storage tank (5) through two second bearings, the rotating rod (16) is fixedly connected with a plurality of stirring rods (17), and the two second bearings are provided as sealed bearings.

3. The gas chromatograph dedicated to chemical laboratories according to claim 1, wherein two slide rails (18) are fixedly connected inside the fixed cylinder (4), a slide block (19) is slidably connected on the slide rails (18), and the side wall of the slide block (19) is fixedly connected to the corresponding side wall of the moving plate (13).

4. The gas chromatograph special for the chemical laboratory according to claim 1, wherein a rotating handle (20) is fixedly connected to the upper end of the outside of the threaded sleeve (11), and the rotating handle (20) is provided with anti-skid threads (21).

5. The gas chromatograph for chemical laboratories as claimed in claim 1, wherein the upper end of the liquid inlet pipe (8) is fixedly connected to a funnel (22).

6. The gas chromatograph for the chemical laboratory according to claim 1, wherein the four corners of the lower end of the base (1) are fixedly connected with supporting legs (23).