CN210269746U

CN210269746U - Automatic thermal desorption sample injection instrument

Info

Publication number: CN210269746U
Application number: CN201921126955.6U
Authority: CN
Inventors: 原斌; 邹翔涌
Original assignee: Qingdao Boravo Testing Technology Co Ltd
Current assignee: Qingdao Boravo Testing Technology Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-04-07
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses an automatic thermal desorption appearance of advancing, including the organism, be provided with the supporting seat on the organism, placed the sampling pipe on the supporting seat, be provided with heating mechanism on the sampling pipe, heating mechanism includes first heating element and second heating element, and first heating element and second heating element all are the arc form and wrap up on the sampling pipe, and first heating element and second heating element all include heating plate, insulating layer, heat preservation and protective housing body, and the heating plate parcel is on the sampling pipe. The utility model discloses automatic thermal desorption appearance of advancing makes heating mechanism install on the sampling pipe or dismantle conveniently from the sampling pipe through coupling mechanism, convenient to use, heat the sampling pipe through the heating plate, insulating layer and heat preservation can carry out effectual thermal-insulated heat preservation to the heating temperature of sampling pipe, make the sampling pipe keep warm effectual and later stage programming rate fast, make thermal desorption gas be difficult for adsorbing on the sampling pipe and then can avoid the sampling pipe to block up for it is accurate to detect the high and detection result of sensitivity.

Description

Automatic thermal desorption sample injection instrument

Technical Field

The utility model relates to a thermal desorption appearance technical field specifically is automatic thermal desorption appearance.

Background

The thermal desorption sampling technology is widely applied at present, the main equipment of the thermal desorption sampling technology is a thermal desorption instrument, the thermal desorption sampling technology is that a solid sample or an adsorption tube which adsorbs an object to be detected is arranged in a thermal desorption device, the device is directly connected with a chromatograph, carrier gas enters a sample inlet of the chromatograph through the thermal desorption device, and when the temperature of the thermal desorption device rises, volatile components are released from the solid sample or an adsorbent and enter a gas chromatography system along with the carrier gas for analysis and determination.

The traditional automatic thermal desorption sample injection instrument comprises: thermal desorption gas circuit system, three major parts of electric cabinet and sampling pipe heating device, sampling pipe heating device comprises metal block and heating rod mostly, because the sampling pipe is longer, sampling pipe heating device is poor to the heat preservation effect of sampling pipe, and the programming rate is slow for thermal desorption gas very easily adsorbs on the sampling pipe and causes the jam, and then appears detecting sensitivity and reduces and peak shape distortion scheduling problem, consequently, the automatic thermal desorption appearance of urgent need solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic thermal desorption appearance of advancing, it is convenient to make heating mechanism installation or dismantlement through coupling mechanism, high durability and convenient use, heat the sampling pipe through the heating plate, insulating layer and heat preservation can carry out effectual thermal-insulated heat preservation to the heating temperature of sampling pipe, it is fast to make the sampling pipe keep warm effectual and later stage programming rate, make the thermal desorption gas be difficult for adsorbing on the sampling pipe and then can avoid the sampling pipe to block up, make to detect sensitivity height and detect the result accurate, the problem among the prior art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: the automatic thermal desorption sample introduction instrument comprises a machine body, wherein a pyrolysis gas path pipe is arranged on the machine body, a support seat which is arranged in parallel is further arranged on the upper surface of the machine body, a sampling pipe is placed on the support seat, a heating mechanism is arranged on the sampling pipe and comprises a first heating assembly and a second heating assembly, the first heating assembly and the second heating assembly are both arc-shaped and wrapped on the sampling pipe, the first heating assembly and the second heating assembly respectively comprise a heating sheet, a heat insulation layer, a heat preservation layer and a protective shell body, the heating sheet is wrapped on the sampling pipe, the outer surface of the heating sheet is provided with the heat insulation layer, the outer surface of the heat insulation layer is provided with the heat preservation layer, and the outer surface of the heat preservation layer is provided with the protective shell body;

the both ends of second heating element's protection shell body all are provided with the inserted block, first heating element and second heating element adopt coupling mechanism to connect fixedly on inserting first heating element's the protection shell body through the inserted block that sets up on second heating element's the protection shell body, coupling mechanism includes fixing base, flexible guide pillar, spring, push away and draw piece and inserted bar, the fixing base symmetric distribution is on first heating element's protection shell body, be provided with flexible guide pillar and spring on the fixing base, the spring is located the periphery of flexible guide pillar, the one end that the fixing base was all kept away from to flexible guide pillar and spring is all connected on pushing away and drawing the piece, be provided with the inserted bar on pushing away and drawing the piece, the one end of inserted bar extends to in the inserted block on inserting the protection shell body.

Preferably, the upper end of supporting seat is provided with the arc spare that supports the sampling pipe, the arc spare is C shape.

Preferably, a display screen and an operation button are arranged right opposite to the machine body, and the display screen is positioned on one side of the operation button.

Preferably, the sampling pipe is provided with a temperature sensor, and the temperature sensor is connected with a control circuit in the machine body through a lead.

Preferably, both ends of the push-pull block are provided with arc handles.

Preferably, the heating sheet, the heat insulation layer and the heat preservation layer are symmetrically distributed at two ends of the sampling pipe.

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

1. the utility model discloses automatic thermal desorption appearance of advancing, it leaves the protection shell body until the inserted bar to drive the push-and-pull piece motion through the arc handle, insert first heating element's protection shell body with the inserted bar that sets up on the protection shell body of second heating element, loosen the arc handle, the spring is because the restoring action makes flexible guide pillar and spring all extend, extend to in the inserted bar on inserting the protection shell body until the one end of inserted bar, the firm fixing of heating mechanism heats the sampling tube on the sampling tube this moment, make heating mechanism install on the sampling tube or dismantle the facility from the sampling tube through coupling mechanism, high durability and convenient use.

2. The utility model discloses automatic thermal desorption advances appearance, parcel heating mechanism on the sampling pipe heats the sampling pipe through the heating plate, and heating plate outlying insulating layer and heat preservation can carry out effectual thermal-insulated heat preservation to the heating temperature of sampling pipe simultaneously, and it is fast to make the sampling pipe keep warm effectual and later stage programming rate, makes the thermal desorption gas be difficult for adsorbing on the sampling pipe and then can avoid the sampling pipe to block up for it is accurate to detect sensitivity height and examine the result.

Drawings

FIG. 1 is a schematic view of the automatic thermal desorption sample injection instrument of the present invention;

FIG. 2 is a side view of the support base of the present invention;

FIG. 3 is a longitudinal sectional view of the sampling tube of the present invention with a heating mechanism;

FIG. 4 is a schematic view of a second heating assembly of the present invention;

fig. 5 is an enlarged view of the connection mechanism of the present invention.

In the figure: 1. a body; 11. a display screen; 12. an operation button; 2. a pyrolysis gas path pipe; 3. a supporting seat; 31. an arcuate member; 4. a sampling tube; 5. a heating mechanism; 51. a first heating assembly; 511. a heating plate; 512. a thermal insulation layer; 513. a heat-insulating layer; 514. a protective outer shell; 52. a second heating assembly; 6. inserting a block; 7. a connecting mechanism; 71. a fixed seat; 72. a telescopic guide post; 73. a spring; 74. a push-pull block; 741. an arc-shaped handle; 75. and (4) inserting the rod.

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.

Referring to fig. 1-4, the automatic thermal desorption sample introduction instrument includes a body 1, a display screen 11 and an operation button 12 are disposed opposite to the body 1, the display screen 11 is disposed on one side of the operation button 12, the display screen 11 can display the temperature of a sampling tube 4 in real time, when the temperature of the sampling tube 4 reaches a set value, a heating plate 511 does not heat the sampling tube 4 any more, a pyrolysis gas path tube 2 is disposed on the body 1, the pyrolysis gas path tube 2 is used for connecting a gas chromatograph, a support base 3 is disposed on the upper surface of the body 1 in parallel arrangement, an arc-shaped member 31 for supporting the sampling tube 4 is disposed at the upper end of the support base 3, the arc-shaped member 31 is C-shaped, the sampling tube 4 is supported by the arc-shaped member 31, the sampling tube 4 is placed or taken conveniently, the sampling tube 4 is placed on the support base 3, a temperature sensor is disposed on the sampling tube 4, the temperature, the temperature sensor detects the heating temperature of the sampling pipe 4 in real time and displays the current temperature through the display screen 11, the sampling pipe 4 is provided with a heating mechanism 5, the heating mechanism 5 comprises a first heating component 51 and a second heating component 52, the first heating component 51 and the second heating component 52 are both arc-shaped and wrapped on the sampling pipe 4, the first heating component 51 and the second heating component 52 both comprise a heating sheet 511, a heat insulation layer 512, a heat preservation layer 513 and a protective outer shell 514, the heating sheet 511, the heat insulation layer 512 and the heat preservation layer 513 are symmetrically distributed at two ends of the sampling pipe 4, the heating sheet 511 is wrapped on the sampling pipe 4, the outer surface of the heating sheet 511 is provided with the heat insulation layer 512, the outer surface of the heat insulation layer 512 is provided with the heat preservation layer 513, the outer surface of the heat preservation layer 513 is provided with the protective outer shell 514, the sampling pipe 4 is wrapped with the heating mechanism 5, the sampling, simultaneously heating plate 511 outlying insulating layer 512 and heat preservation 513 can carry out effectual thermal-insulated heat preservation to the heating temperature of sampling pipe 4, make sampling pipe 4 keep warm effectual and later stage programming rate fast, make the gaseous difficult absorption of thermal desorption on sampling pipe 4 and then can avoid sampling pipe 4 to block up for it is accurate to detect sensitivity height and examine out the result.

Referring to fig. 5, both ends of the protective outer shell 514 of the second heating assembly 52 are provided with insertion blocks 6, the first heating assembly 51 and the second heating assembly 52 are inserted into the protective outer shell 514 of the first heating assembly 51 through the insertion blocks 6 provided on the protective outer shell 514 of the second heating assembly 52 and are connected and fixed by a connecting mechanism 7, the connecting mechanism 7 includes a fixing base 71, a telescopic guide pillar 72, a spring 73, a push-pull block 74 and an insertion rod 75, the fixing base 71 is symmetrically distributed on the protective outer shell 514 of the first heating assembly 51, the fixing base 71 is provided with the telescopic guide pillar 72 and the spring 73, the spring 73 is located at the periphery of the telescopic guide pillar 72, both ends of the telescopic guide pillar 72 and the spring 73 far from the fixing base 71 are connected to the push-pull block 74, both ends of the push-pull block 74 are provided with arc-shaped handles 741, the push-pull block 74 is provided with the insertion rod 75, one end of the insertion rod 75 is inserted, when the heating mechanism 5 is installed on the sampling tube 4, the pushing and pulling block 74 is driven to move through the arc-shaped handle 741, the pushing and pulling block 74 extrudes the telescopic guide post 72 and the spring 73 to enable the telescopic guide post 72 and the spring 73 to shrink until the insertion rod 75 leaves the protective outer shell 514, at the moment, the insertion block 6 arranged on the protective outer shell 514 of the second heating assembly 52 is inserted into the protective outer shell 514 of the first heating assembly 51, the arc-shaped handle 741 is loosened, the spring 73 enables the telescopic guide post 72 and the spring 73 to stretch due to the resetting effect, and extends into the insertion block 6 until one end of the insertion rod 75 is inserted into the protective outer shell 514, at the moment, the heating mechanism 5 is firmly fixed on the sampling tube 4 and heats the sampling tube 4, the heating mechanism 5 is installed on the sampling tube 4 or is conveniently detached from the sampling tube 4 through the connecting mechanism 7, and the use.

In summary, the following steps: the utility model discloses automatic thermal desorption appearance, when installing heating mechanism 5 on sampling tube 4, drive through arc handle 741 and push away and draw piece 74 motion, push away and draw piece 74 extrusion flexible guide pillar 72 and spring 73 this moment and make flexible guide pillar 72 and spring 73 shrink all, until inserted bar 75 leaves protection shell body 514, insert the inserted block 6 that sets up on the protection shell body 514 of second heating element 52 on the protection shell body 514 of first heating element 51 this moment, loosen arc handle 741, spring 73 makes flexible guide pillar 72 and spring 73 all extend because of the reset action, until one end of inserted bar 75 inserts on protection shell body 514 and extends to the inserted block 6 in, heating mechanism 5 is firm to be fixed on sampling tube 4 and heats sampling tube 4 this moment, make heating mechanism 5 install on sampling tube 4 or dismantle from sampling tube 4 through coupling mechanism 7 and facilitate, high durability and convenient use, wrap up heating mechanism 5 on sampling tube 4, heating sampling pipe 4 through heating plate 511, heating plate 511 outlying insulating layer 512 and heat preservation 513 can carry out effectual thermal-insulated heat preservation to the heating temperature of sampling pipe 4 simultaneously, make sampling pipe 4 keep warm effectual and later stage programming rate fast, make thermal desorption gas be difficult for adsorbing on sampling pipe 4 and then can avoid sampling pipe 4 to block up for it is accurate to detect sensitivity height and examine out the result.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Automatic thermal desorption appearance of advancing, including organism (1), its characterized in that: the utility model discloses a sampling device, including organism (1), heating mechanism (5), sampling pipe (4), heating mechanism (5), organism (1), be provided with pyrolysis gas circuit pipe (2) on the organism (1), the upper surface of organism (1) still is provided with parallel arrangement's supporting seat (3), sampling pipe (4) have been placed on supporting seat (3), be provided with heating mechanism (5) on sampling pipe (4), heating mechanism (5) include first heating element (51) and second heating element (52), first heating element (51) and second heating element (52) all are the arc form and wrap up on sampling pipe (4), first heating element (51) and second heating element (52) all include heating plate (511), insulating layer (512), heat preservation (513) and protection shell body (514), heating plate (511) parcel is on sampling pipe (4), the surface of heating plate (511) is provided with insulating layer (512), the surface of insulating layer (512) is provided with heat preservation (513), a protective outer shell (514) is arranged on the outer surface of the heat-insulating layer (513);

the two ends of the protective outer shell (514) of the second heating assembly (52) are respectively provided with an insertion block (6), the first heating assembly (51) and the second heating assembly (52) are inserted into the protective outer shell (514) of the first heating assembly (51) through the insertion blocks (6) arranged on the protective outer shell (514) of the second heating assembly (52) and are fixedly connected through a connecting mechanism (7), the connecting mechanism (7) comprises a fixed seat (71), a telescopic guide post (72), a spring (73), a push-pull block (74) and an insertion rod (75), the fixed seat (71) is symmetrically distributed on the protective outer shell (514) of the first heating assembly (51), the fixed seat (71) is provided with the telescopic guide post (72) and the spring (73), the spring (73) is positioned on the periphery of the telescopic guide post (72), and one ends, far away from the fixed seat (71), of the telescopic guide post (72) and the spring (73) are both connected to the push-pull block (74), an inserting rod (75) is arranged on the push-pull block (74), and one end of the inserting rod (75) is inserted into the protective outer shell (514) and extends into the inserting block (6).

2. The automatic thermal desorption sample injection instrument according to claim 1, which is characterized in that: the upper end of supporting seat (3) is provided with arc (31) that support sampling pipe (4), arc (31) are the C shape.

3. The automatic thermal desorption sample injection instrument according to claim 1, which is characterized in that: the portable multifunctional electric scooter is characterized in that a display screen (11) and an operating button (12) are arranged opposite to the machine body (1), and the display screen (11) is located on one side of the operating button (12).

4. The automatic thermal desorption sample injection instrument according to claim 1, which is characterized in that: the sampling pipe (4) is provided with a temperature sensor, and the temperature sensor is connected with a control circuit in the machine body (1) through a wire.

5. The automatic thermal desorption sample injection instrument according to claim 1, which is characterized in that: arc-shaped handles (741) are arranged at two ends of the push-pull block (74).

6. The automatic thermal desorption sample injection instrument according to claim 1, which is characterized in that: the heating sheet (511), the heat insulation layer (512) and the heat preservation layer (513) are symmetrically distributed at two ends of the sampling pipe (4).