CN217359760U

CN217359760U - Gas chromatograph for detecting content of benzoyl peroxide in air

Info

Publication number: CN217359760U
Application number: CN202220962449.6U
Authority: CN
Inventors: 涂海鸥
Original assignee: Sichuan Taiansheng Technology Consulting Co ltd
Current assignee: Sichuan Taiansheng Technology Consulting Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-09-02
Anticipated expiration: 2032-04-19

Abstract

The utility model relates to a gas chromatograph technical field, the utility model relates to a gas chromatograph of benzoyl peroxide content in detection air, aim at solving current gas chromatograph when gathering the air, lack impurity and moisture filtration in the air, influence life's problem, set up the lag in gas chromatograph's air inlet department, and set up filter screen frame and drying box on the protective sleeve, set up the filter screen on the filter screen frame, can filter the impurity dust in the air, fill the drier in the drying box, can adsorb the moisture in the air, avoid dust impurity and moisture to influence gas chromatograph's detection and life; filter screen frame and dry box are installed on the protective sheath through first bolt and second bolt, and the installation is dismantled to the two that the staff can be quick, is convenient for maintain its clearance, improves work efficiency.

Description

Gas chromatograph for detecting content of benzoyl peroxide in air

Technical Field

The utility model relates to a gas chromatograph equipment technical field, especially a gas chromatograph who detects benzoyl peroxide content in the air.

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.

Gas chromatographs are widely varied and have different functions, but their basic structures are similar. The gas chromatograph generally comprises a gas path system, a sample introduction system, a separation system (chromatographic column system), a detection and temperature control system, and a recording system.

When using gas chromatograph to detect the content of benzoyl peroxide in the air, need let in the sampling system with the air, contain moisture and impurity dust in the air, the air that contains moisture and impurity dust directly lets in detects in the gas chromatograph, causes gas chromatograph's damage easily, reduces its life, still can influence gas chromatograph's testing result.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art's shortcoming, provide a gas chromatograph that detects benzoyl peroxide content in the air.

The purpose of the utility model is realized through the following technical scheme: a gas chromatograph for detecting the content of benzoyl peroxide in air comprises a chromatograph body, wherein the chromatograph body comprises a gas path system, a sample introduction system, a separation system, a detection system, a temperature control system, a recording system and an operation and control system; the chromatograph body is provided with an air inlet which is communicated with the sample introduction system, a protective sleeve is arranged on the outer side of the air inlet, an air inlet is arranged on the protective sleeve and communicated with the air inlet, the air inlet comprises a cone part and a straight part, a filter frame and a drying box are sequentially arranged on the cone part along the outside and the inside, a filter screen is arranged on the filter frame, a drying agent is filled in the drying box, a plurality of air passing holes are formed in the drying box, the filter frame and the drying box are respectively arranged on the protective sleeve through a first bolt and a second bolt, the protective sleeve is arranged at the air inlet of the gas chromatograph, a filter screen frame and the drying box are arranged on the protective sleeve, the filter screen is arranged on the filter screen frame and can filter impurity dust in the air, and the drying agent is filled in the drying box and can absorb moisture in the air, the influence of dust impurities and moisture on the detection and the service life of the gas chromatograph is avoided.

As a preferred technical scheme of the utility model, filter the frame with dry box is the round platform form, just filter the frame with inclined plane on the dry box all moves towards the left side, seted up on the protector with first bolt with the screw hole that the second bolt engaged with, first bolt with the second bolt with sliding connection between the inclined plane, first bolt with the bottom of second bolt is the hemisphere, and filter screen frame and dry box are installed on the protector through first bolt and second bolt, and the installation is dismantled to the two that the staff can be quick, is convenient for maintain its clearance, improves work efficiency.

As an optimized technical scheme of the utility model, the filter frame with dry box with all be equipped with seal gasket between the lag.

As an optimal technical scheme of the utility model, the admission line has still been seted up on the protective sheath, the admission line with the inlet port intercommunication, the tip of admission line is equipped with protruding edge, be equipped with the air inlet stopper on protruding edge.

As a preferred technical scheme of the utility model, sampling system still includes the vaporizer, the vaporizer outside is equipped with the heat dissipation chamber, the heat dissipation chamber passes through heat dissipation pipeline and external intercommunication, the heat dissipation pipeline is connected with the input of air exhauster, still be equipped with the valve on the air inlet, set up the heat dissipation chamber in the vaporizer outside, make the air exhauster pass through heat dissipation pipeline and heat dissipation chamber intercommunication, can accelerate the cooling heat dissipation to the vaporizer, avoid the higher damage gas chromatograph of vaporizer temperature.

As an optimal technical scheme of the utility model, still be equipped with supply-air duct on the output of air exhauster, supply-air duct's tip be equipped with protruding go-between of connecting along.

As a preferred technical scheme of the utility model, the holding tank has been seted up on the go-between, sliding connection has spacing ball in the holding tank, spacing ball with be equipped with the spring between the go-between, protruding edge on seted up with spacing ball size phase-match, the corresponding annular in position connect supply-air duct on the air exhauster, supply-air duct is connected with the admission line through the go-between, can be with the high temperature air of heat dissipation intracavity for to the stoving of drier, the energy can be saved.

As an optimized technical proposal of the utility model, the drying agent adopts anhydrous calcium chloride.

The utility model has the advantages of it is following:

the gas chromatograph comprises a gas chromatograph, and is characterized in that a protective sleeve is arranged at an air inlet of the gas chromatograph, a filter screen frame and a drying box are arranged on the protective sleeve, a filter screen is arranged on the filter screen frame, impurity and dust in the air can be filtered, a drying agent is filled in the drying box, moisture in the air can be adsorbed, and the influence of the dust, the impurity and the moisture on the detection and the service life of the gas chromatograph is avoided; the filter screen frame and the drying box are arranged on the protective sleeve through the first bolt and the second bolt, so that workers can rapidly disassemble and assemble the filter screen frame and the drying box, the filter screen frame and the drying box are convenient to clean and maintain, and the working efficiency is improved; the heat dissipation cavity is arranged outside the gasification chamber, so that the exhaust fan is communicated with the heat dissipation cavity through the heat dissipation pipeline, the cooling and heat dissipation of the gasification chamber can be accelerated, and the gas chromatograph is prevented from being damaged due to high temperature of the gasification chamber; the air supply pipeline is connected to the exhaust fan and connected with the air inlet pipeline through the connecting ring, and high-temperature air in the heat dissipation cavity can be used for drying the drying agent, so that energy is saved.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure of the protective cover of the present invention;

FIG. 4 is an enlarged schematic view of the structure at the position A;

fig. 5 is a schematic cross-sectional view of the connection ring of the present invention.

In the figure: 1. a chromatograph body; 2. a control system; 3. an air inlet; 4. a valve; 5. a protective sleeve; 6. an air inlet; 7. a filter frame; 8. a filter screen; 9. a desiccant; 10. drying the box; 11. a first bolt; 12. a second bolt; 13. a heat dissipation pipe; 14. an exhaust fan; 15. an air supply duct; 16. an air intake duct; 17. an air inlet plug; 18. a connecting ring; 19. a convex edge; 20. accommodating grooves; 21. a spring; 22. and a limiting ball.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application provided below in connection with the appended drawings is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application. The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 5, a gas chromatograph for detecting the content of benzoyl peroxide in air comprises a chromatograph body 1, wherein the chromatograph body 1 comprises a gas path system, a sample introduction system, a separation system, a detection system, a temperature control system, a recording system and an operation system 2; be equipped with air inlet 3 on the chromatograph body 1, air inlet 3 with sampling system intercommunication, be equipped with lag 5 on the outside of air inlet 3, inlet port 6 has been seted up on lag 5, inlet port 6 with air inlet 3 intercommunication, inlet port 6 includes pyramis and straight portion, the diameter size of straight portion with the diameter size of air inlet 3 is the same, be equipped with in proper order along the extroversion in on the pyramis and filter frame 7 and drying box 10, filter frame 7 is located the left side of drying box 10, be equipped with filter screen 8 on the filter frame 7, the intussuseption of drying box 10 is filled with drier 9, just a plurality of air passing holes have been seted up on the drying box 10, filter frame 7 with drying box 10 is installed through first bolt 11 and second bolt 12 respectively on lag 5.

As an optimal technical scheme of the utility model, filter frame 7 with dry box 10 is the round platform form, filter frame 7 with the left side diameter of dry box 10 is less than filter frame 7 with the right side diameter of dry box 10, seted up on the lag 5 with first bolt 11 with the screw hole that second bolt 12 meshed mutually, first bolt 11 with screw thread on the second bolt 12 is the same, first bolt 11's length is less than the length of second bolt 12, first bolt 11 with second bolt 12 with sliding connection between the inclined plane.

As an optimized technical solution of the present invention, the filtering frame 7 and the drying box 10 and the protecting jacket 5 are all provided with a sealing gasket therebetween.

As an optimal technical scheme of the utility model, inlet line 16 has still been seted up on lag 5, inlet line 16 with inlet port 6 intercommunication, inlet line 16's tip is equipped with protruding edge 19, be equipped with air inlet plug 17 on protruding edge 19, gas chromatograph body 1 is passing through when air inlet 3 carries out the gas production, air inlet plug 17 will inlet line 16 seals.

As a preferred technical scheme of the utility model, sampling system still includes the vaporizer, the vaporizer outside is equipped with the heat dissipation chamber, the heat dissipation chamber passes through heat dissipation pipeline 13 and external intercommunication, heat dissipation pipeline 13 is connected with air exhauster 14's input, still be equipped with valve 4 on the air inlet 3, valve 4 can adopt the solenoid valve, through behind a certain amount of gas, the accessible was gathered to air inlet 3 operating system 2 will valve 4 closes.

As an optimized technical scheme of the utility model, still be equipped with supply air duct 15 on the output of air exhauster 14, supply air duct 15's tip be equipped with protruding go-between 18 of connecting along 19.

As a preferred technical scheme of the utility model, holding tank 20 has been seted up on the go-between 18, holding tank 20 sets up on the inside wall of go-between 18, sliding connection has spacing ball 22 in holding tank 20, spacing ball 22 with be equipped with spring 21 between the go-between 18, protruding edge 19 on seted up with spacing ball 22 size phase-match, the corresponding annular in position, spacing ball 22 is equipped with four groups, just is in array setting on the go-between 18.

As a preferred technical solution of the present invention, the drying agent 9 is anhydrous calcium chloride.

The working process of the utility model is as follows: when the drying device is used, the drying box 10 with the drying agent 9 is placed in the second groove on the protective sleeve 5 and is installed through the second bolt 12, the second bolt 12 rotates in the threaded hole on the protective sleeve 5, the second bolt 12 moves downwards, the bottom of the second bolt 12 is in contact with the inclined plane on the drying box 10 and extrudes the inclined plane, the drying box 10 is fixed on the protective sleeve 5, the filter frame 7 provided with the filter screen 8 is installed through the first bolt 11, the filter frame 7 is installed in the first groove on the protective sleeve 5, the protective sleeve 5 is connected with the air inlet 3 through the hoop, after the installation is completed, the air inlet 3 on the chromatograph body 1 is controlled through the control system 2 to collect and detect the content of benzoyl peroxide in the air, the air is filtered through the filter screen 8 and dried through the drying agent 9, the moisture and the impurity dust in the air are filtered and intercepted, drying agent 9 of anhydrous calcium chloride generates calcium chloride hexahydrate after absorbing moisture in air, after a certain amount of air is collected, control valve 4 is closed, air is heated up and detected through a gasification chamber, after the temperature of the gasification chamber is raised, the temperature in a heat dissipation cavity is raised, air inlet plug 17 is taken down from air inlet pipeline 16, connecting ring 18 on air supply pipeline 15 is aligned with convex edge 19 on air inlet pipeline 16 for installation, convex edge 19 extrudes limiting ball 22 to slide in accommodating groove 20 and extrudes spring 21, when limiting ball 22 corresponds to the position of the annular groove on convex edge 19, limiting ball 22 resets under the elastic force of spring 21 and is embedded in the annular groove, limiting is carried out between connecting ring 18 and convex edge 19, exhaust fan 14 is opened, high-temperature air in the heat dissipation cavity is extracted through heat dissipation pipeline 13 and is introduced into protective sleeve 5 through air supply pipeline 15 and air inlet pipeline 16, the valve 4 on the air inlet 3 is closed, high-temperature air flows to the drying box 10, and the calcium chloride hexahydrate in the drying box 10 is heated and dried to be decomposed into moisture and anhydrous calcium chloride, the moisture is discharged out of the protective sleeve 5 along with the air, and the anhydrous calcium chloride can be continuously used as a drying agent 9, so that the energy loss is reduced.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A gas chromatograph for detecting the content of benzoyl peroxide in air comprises a chromatograph body (1), wherein the chromatograph body (1) comprises a gas path system, a sample introduction system, a separation system, a detection system, a temperature control system, a recording system and an operation and control system (2); the method is characterized in that: be equipped with air inlet (3) on chromatograph body (1), air inlet (3) with sampling system intercommunication, be equipped with lag (5) on the outside of air inlet (3), inlet port (6) have been seted up on lag (5), inlet port (6) with air inlet (3) intercommunication, inlet port (6) are including pyramis and straight portion, be equipped with in proper order along the extroversion on in the pyramis and filter frame (7) and dry box (10), be equipped with filter screen (8) on filter frame (7), dry box (10) intussuseption is filled with drier (9), just a plurality of air passing holes have been seted up on dry box (10), filter frame (7) with dry box (10) are installed through first bolt (11) and second bolt (12) respectively on lag (5).

2. The gas chromatograph for detecting the content of benzoyl peroxide in air according to claim 1, wherein: the filter frame (7) and the drying box (10) are both in a circular truncated cone shape, inclined planes on the filter frame (7) and the drying box (10) face towards the left side, threaded holes meshed with the first bolt (11) and the second bolt (12) are formed in the protective sleeve (5), and the first bolt (11) and the second bolt (12) are in sliding connection with the inclined planes.

3. The gas chromatograph for detecting the content of benzoyl peroxide in air according to claim 2, wherein: and sealing gaskets are arranged between the filter frame (7) and the drying box (10) and the protective sleeve (5).

4. The gas chromatograph for detecting the content of benzoyl peroxide in air according to claim 1, wherein: the air inlet pipe (16) is further formed in the protective sleeve (5), the air inlet pipe (16) is communicated with the air inlet hole (6), a convex edge (19) is arranged at the end portion of the air inlet pipe (16), and an air inlet plug (17) is arranged on the convex edge (19).

5. The gas chromatograph for detecting the content of benzoyl peroxide in air according to claim 4, characterized in that: sampling system still includes the vaporizer, the vaporizer outside is equipped with the heat dissipation chamber, the heat dissipation chamber passes through heat dissipation pipeline (13) and communicates with the external world, heat dissipation pipeline (13) are connected with the input of air exhauster (14), still be equipped with valve (4) on air inlet (3).

6. The gas chromatograph for detecting the content of benzoyl peroxide in air according to claim 5, wherein: an air supply pipeline (15) is further arranged at the output end of the exhaust fan (14), and a connecting ring (18) connected with the convex edge (19) is arranged at the end part of the air supply pipeline (15).

7. The gas chromatograph for detecting the content of benzoyl peroxide in air according to claim 6, wherein: holding tank (20) have been seted up on go-between (18), sliding connection has spacing ball (22) in holding tank (20), spacing ball (22) with be equipped with spring (21) between go-between (18), protruding edge (19) on seted up with spacing ball (22) size phase-match, the corresponding annular in position.

8. The gas chromatograph for detecting the content of benzoyl peroxide in air according to claim 1, characterized in that: the drying agent (9) adopts anhydrous calcium chloride.