CN213481871U

CN213481871U - Head space device for high-precision full-automatic soil VOCs treatment instrument

Info

Publication number: CN213481871U
Application number: CN202022546202.XU
Authority: CN
Inventors: 刘传; 蔡小虎
Original assignee: Jiangxi Guanyi Testing Technology Co ltd
Current assignee: Jiangxi Guanyi Testing Technology Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-18
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a full-automatic soil VOCs for processor head space device of high accuracy relates to the analytical instrument field, the utility model discloses a cylinder is installed to the device main part, the inside top of device main part. The utility model discloses a be provided with the exhaust fan, the active carbon adsorption layer, the rotation axis, stopper and connecting plate, heat the overhead bottle and collect the back through the syringe to the sample, the user alright open the exhaust fan through operating panel, make the exhaust fan discharge the inside air of device main part, in order to avoid influencing the precision of follow-up sampling, can filter the absorption to this part volatile organic compounds through the active carbon adsorption layer simultaneously, filter through the active carbon adsorption layer and adsorb and reach the saturation after, thereby accessible pulling stopper makes the stopper overturn under the drive of rotation axis, thereby alright pulling connecting plate takes out the active carbon adsorption layer afterwards, and then change or clear up the active carbon adsorption layer.

Description

Head space device for high-precision full-automatic soil VOCs treatment instrument

Technical Field

The utility model relates to an analytical instrument field specifically is full-automatic soil VOCs for treater head space device of high accuracy.

Background

A headspace sample injector is a convenient and fast sample pretreatment method in gas chromatography, and is characterized in that a sample to be detected is placed in a closed container, volatile components are volatilized from a sample matrix through heating, balance is achieved in a gas-liquid (or gas-solid) phase, and top gas is directly extracted for chromatographic analysis, so that the components and the content of the volatile components in the sample are detected.

According to the chinese patent with publication number CN109444309A, a novel automatic headspace sampling device is disclosed, which comprises a device main body and a limiting device, wherein a telescopic rod fixedly connected is arranged on the inner surface of the top of the device main body, a sampling device is arranged at the lower end of the telescopic rod, a power supply is arranged at the right end of the inner surface of the bottom of the device main body, and the power supply is connected with a motor and the telescopic rod through wires respectively.

The utility model discloses a control panel sends control command, control telescopic link and motor work, and motor work drives the rolling disc and rotates, and the rolling disc rotates and drives and rotate, has realized that the slider reciprocates, and second connecting rod and slider threaded connection can adjust the direction of fixed plate when realizing using simultaneously, make the telescopic link better aim at the bottle of waiting to sample; however, in the device, after a bottle to be sampled is heated and sampled by a sampling device, due to the fact that a large amount of volatile organic compounds are contained in a sample, the heated sample is emitted from the bottle to be sampled, and the emitted volatile organic compounds are retained in a device body, so that the sampling precision of a subsequent sampling device is influenced; simultaneously, when treating the sampling bottle among the device and fastening through the elastic washer, because the flexible of elastic washer has certain limitation, can't satisfy the centre gripping to the sampling bottle of different aperture sizes promptly for the suitability of the device has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: thereby volatile organic compounds who gives off after solving the sample heating are difficult to discharge and influence follow-up detection precision and be difficult to carry out the centre gripping fixed problem to the sampling bottle of different specifications, provide the full-automatic soil VOCs headspace device for the treater of high accuracy.

In order to achieve the above object, the utility model provides a following technical scheme: full-automatic soil VOCs for treater head space device of high accuracy, including the device main part, the cylinder is installed to the inside top of device main part, the output of cylinder is connected with the piston rod, the syringe is installed to the bottom of piston rod, electric heating pipe is installed to the inside below of device main part, the heat-conducting plate is installed at electric heating pipe's top, the top of heat-conducting plate is provided with the head space bottle, spring and telescopic link are all installed to the inside both sides of device main part, splint are installed to the one end of spring, exhaust fan and active carbon adsorption layer are installed respectively to the top of device main part, one side of active carbon adsorption layer is fixed with the connecting plate, the rotation axis is installed to one side top of device main part, the stopper is installed to one side of rotation axis, the surface of device main.

Preferably, the exhaust fan is positioned right above the activated carbon adsorption layer.

Preferably, the limiting block is located right above the connecting plate and is rotatably connected with the device main body through a rotating shaft.

Preferably, the clamping plates are arranged in two numbers, the two clamping plates are symmetrically distributed along the central line of the longitudinal axis of the device main body, and the headspace bottle is positioned between the two clamping plates.

Preferably, an operation panel is installed on one side of the device main body, and the operation panel is respectively electrically connected with the air cylinder, the electric heating pipe and the exhaust fan.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a through being provided with the exhaust fan, the active carbon adsorption layer, the rotation axis, stopper and connecting plate, after heating the headspace bottle and collecting the sample through the syringe, because the sample will distribute to the device main part from the headspace bottle, the user can open the exhaust fan through operating panel at this moment, make the exhaust fan discharge the air inside the device main part, in order to avoid influencing the precision of follow-up sampling, simultaneously because the volatile organic compounds in the sample is air pollutant, can filter and adsorb this part of volatile organic compounds through the active carbon adsorption layer, in order to avoid this volatile organic compounds to distribute to the air and influence the air quality, after filtering and adsorbing through the active carbon adsorption layer and reaching the saturation, the user can make the stopper overturn under the drive of rotation axis through pulling the stopper, afterwards can stimulate the connecting plate to take out the active carbon adsorption layer, then the activated carbon adsorption layer is replaced or cleaned;

2. the utility model discloses a be provided with the spring, telescopic link and splint, the user is earlier through carrying out the removal of position in opposite directions with two splint, make telescopic link and spring shrink, because can carry out adjustment on a large scale to the distance between two splint, make and place the headspace bottle of different specifications on the heat-conducting plate, thereby it removes to the direction of headspace bottle to drive telescopic link and splint to produce certain tension after the shrink because the spring, make splint can press from both sides tight fastening to the headspace bottle, can carry out effectual protection to the headspace bottle through being provided with the rubber pad in one side of splint simultaneously, thereby the device's suitability has been promoted.

Drawings

FIG. 1 is a schematic view of a front cross-section structure of the present invention;

FIG. 2 is a schematic view of the top-down structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure A of the present invention;

fig. 4 is the utility model discloses a stopper side local structure schematic diagram.

In the figure: 1. a device main body; 2. a cylinder; 3. a piston rod; 4. an injector; 5. a telescopic rod; 6. a spring; 7. a splint; 8. a heat conducting plate; 9. an electric heating tube; 10. a headspace bottle; 11. an operation panel; 12. an exhaust fan; 13. an activated carbon adsorption layer; 14. a box door; 15. a rotating shaft; 16. a limiting block; 17. a connecting plate.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-3, the headspace device for the high-precision full-automatic soil VOCs treatment instrument comprises a device main body 1, a cylinder 2, a piston rod 3, an injector 4, an expansion link 5, a spring 6, a clamping plate 7, a heat conducting plate 8, an electric heating pipe 9, a headspace bottle 10, an operation panel 11, an exhaust fan 12, an activated carbon adsorption layer 13, a box door 14, a rotating shaft 15, a limit block 16 and a connecting plate 17; install cylinder 2 above the inside of device main part 1, the output of cylinder 2 is connected with piston rod 3, syringe 4 is installed to the bottom of piston rod 3, electric heating pipe 9 is installed to the inside below of device main part 1, heat-conducting plate 8 is installed at the top of electric heating pipe 9, heat-conducting plate 8's top is provided with head-space bottle 10, spring 6 and telescopic link 5 are all installed to the inside both sides of device main part 1, splint 7 are installed to spring 6's one end, exhaust fan 12 and active carbon adsorption layer 13 are installed respectively to the top of device main part 1, one side of active carbon adsorption layer 13 is fixed with connecting plate 17, rotation axis 15 is installed to one side top of device main part 1, stopper 16 is installed to one side of rotation axis 15, the surface of device main part 1.

Please refer to fig. 1, fig. 3 and fig. 4, the exhaust fan 12 is located right above the activated carbon adsorption layer 13, so that the air inside the device main body 1 is extracted by the exhaust fan 12 and then the impurities are removed by the activated carbon adsorption layer 13; stopper 16 is located connecting plate 17 directly over, and stopper 16 rotates through rotation axis 15 and device main part 1 to be connected, thereby can carry out the buckle to connecting plate 17 after driving stopper 16 through rotation axis 15 and rotate and carry out the dismouting to activated carbon adsorption layer 13.

Please refer to fig. 1-2, two clamping plates 7 are provided, the two clamping plates 7 are symmetrically distributed along the central line of the longitudinal axis of the device main body 1, and the headspace bottles 10 are positioned between the two clamping plates 7, so that different specifications of headspace bottles 10 can be clamped and fastened by moving and adjusting the two clamping plates 7; an operation panel 11 is installed at one side of the device main body 1, and the operation panel 11 is electrically connected with the cylinder 2, the electric heating pipe 9 and the exhaust fan 12 respectively, so that a user can open or close the cylinder 2, the electric heating pipe 9 and the exhaust fan 12 through the operation panel 11.

The working principle is as follows: firstly, a user firstly moves the two clamping plates 7 in opposite directions to contract the telescopic rod 5 and the spring 6, and can adjust the distance between the two clamping plates 7 in a large range, so that headspace bottles 10 with different specifications can be placed on the heat conducting plate 8, then the spring 6 generates certain tension after contraction to drive the telescopic rod 5 and the clamping plates 7 to move towards the headspace bottles 10, so that the clamping plates 7 can clamp and fasten the headspace bottles 10, meanwhile, one side of the clamping plates 7 is provided with a rubber pad to effectively protect the headspace bottles, then the electric heating pipe 9 can be opened through the operation panel 11, heat is transferred to the headspace bottles 10 through the heat conducting plate 8 to heat the headspace bottles 10, and after volatile organic matters are emitted from the headspace bottles 10, the cylinder 2 is started to drive the piston rod 3 to move downwards, the syringe 4 can then be moved into the detection device by drawing gas through the syringe 4, after the headspace bottle 10 is heated and the sample is collected by the syringe 4, the user turns on the exhaust fan 12 through the operation panel 11, so that the exhaust fan 12 exhausts the air inside the apparatus body 1, to avoid affecting the accuracy of the subsequent sampling, the active carbon adsorption layer 13 can filter and adsorb the part of volatile organic compounds to avoid the volatile organic compounds from being emitted into the air to influence the air quality, after filtering through activated carbon adsorption layer 13 and adsorbing and reaching the saturation, thereby user's accessible pulling stopper 16 makes stopper 16 overturn under the drive of rotation axis 15, thereby alright pulling connecting plate 17 takes out activated carbon adsorption layer 13 afterwards, and then changes or clears up activated carbon adsorption layer 13.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Full-automatic soil VOCs processing apparatus of high accuracy is with head space device, including device main part (1), its characterized in that: install cylinder (2) above the inside of device main part (1), the output of cylinder (2) is connected with piston rod (3), syringe (4) are installed to the bottom of piston rod (3), electric heating pipe (9) are installed to the inside below of device main part (1), heat-conducting plate (8) are installed at the top of electric heating pipe (9), the top of heat-conducting plate (8) is provided with head-space bottle (10), spring (6) and telescopic link (5) are all installed to the inside both sides of device main part (1), splint (7) are installed to the one end of spring (6), exhaust fan (12) and active carbon adsorption layer (13) are installed respectively to the top of device main part (1), one side of active carbon adsorption layer (13) is fixed with connecting plate (17), rotation axis (15) are installed to one side top of device main part (1), a limit block (16) is installed on one side of the rotating shaft (15), and a box door (14) is hinged to the outer surface of the device main body (1).

2. The headspace device for the high-precision full-automatic soil VOCs treatment instrument according to claim 1, characterized in that: the exhaust fan (12) is positioned right above the activated carbon adsorption layer (13).

3. The headspace device for the high-precision full-automatic soil VOCs treatment instrument according to claim 1, characterized in that: the limiting block (16) is located right above the connecting plate (17), and the limiting block (16) is rotatably connected with the device main body (1) through a rotating shaft (15).

4. The headspace device for the high-precision full-automatic soil VOCs treatment instrument according to claim 1, characterized in that: the device is characterized in that the number of the clamping plates (7) is two, the clamping plates (7) are symmetrically distributed along the central line of the longitudinal axis of the device main body (1), and the headspace bottle (10) is located between the two clamping plates (7).

5. The headspace device for the high-precision full-automatic soil VOCs treatment instrument according to claim 1, characterized in that: operation panel (11) are installed to one side of device main part (1), just operation panel (11) respectively with cylinder (2), electric heating pipe (9) and exhaust fan (12) electric connection.