CN216350531U

CN216350531U - Thermal cracking sample injection heating pipeline

Info

Publication number: CN216350531U
Application number: CN202122465787.7U
Authority: CN
Inventors: 刘召贵; 邹晔扬; 吴明所; 李胜辉; 郑建明
Original assignee: JIANGSU SKYRAY INSTRUMENT CO Ltd
Current assignee: JIANGSU SKYRAY INSTRUMENT CO Ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-04-19
Anticipated expiration: 2031-10-13

Abstract

The utility model discloses a thermal cracking sample injection heating pipeline which comprises a base heating module, a gas pipeline, a heating sleeve arranged on the periphery of the gas pipeline, a heating rod for heating the heating sleeve, and a gas pipeline heat conduction clamp for guiding heat dissipated by the base heating module, the heating rod and the heating sleeve into the gas pipeline exposed outside the heating sleeve and conducting heat by matching with the gas pipeline exposed outside the heating sleeve; the utility model ensures that the sample gas does not remain on the pipeline, and the accuracy and the stability of the detection results of the two times before and after the sample gas is detected, has simple connection mode, is convenient for debugging, effectively reduces the difficulty of production and debugging, utilizes the residual heat of the base, saves the cost, and has more competitiveness economically.

Description

Thermal cracking sample injection heating pipeline

Technical Field

The utility model relates to the field of analytical instruments, in particular to a thermal cracking sample injection heating pipeline.

Background

After the sample of the rapid thermal cracking RoHS detector is subjected to thermal cracking and gasification, the gas circuit pipeline needs to be heated in the process of entering a gas chromatograph along with carrier gas, so that the sample gas is prevented from being condensed on the pipeline to cause residue, and the detection result is influenced.

The thermal cracking that current conventional technology adopted advances kind pipeline has the pipeline overlength, heating rate is slow, sample gas is when the pipeline, partial gas remains on the pipeline, lead to the pipeline pollution, the test is unusual, often need wash the pipeline, prior art specifically adopts heating coil winding on the pipeline, because pipeline length (more than 1 m), the heating coil outside need add the heat preservation, prevent that the heat from scattering and disappearing, not only processing is complicated, the cost is higher, and the pipeline of overlength, the sample remains easily, influence the stability and the accuracy that detect, consequently, need look for suitable mode and method.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve one technical problem in the prior art, and provides a thermal cracking sample injection heating pipeline which comprises a base heating module, a gas pipeline, a heating sleeve arranged on the periphery of the gas pipeline, a heating rod used for heating the heating sleeve, and a gas pipeline heat conduction clamp used for guiding heat dissipated by the base heating module, the heating rod and the heating sleeve into the gas pipeline exposed outside the heating sleeve and matching with the gas pipeline exposed outside the heating sleeve for heat conduction.

The base heating module is located at the front part of the heating sleeve and at the rear end of the quartz cracking chamber, an exposed pipeline exists between the heating sleeve and the base heating module, the exposed pipeline is additionally provided with a gas pipe heat conduction clamp of a metal structure, and an aluminum structure is preferably selected, so that the waste heat of the base heating module and the waste heat of the heating sleeve can be led into the exposed pipeline, the temperature of the gas pipe at the section is ensured to be relatively stable with the temperature at other positions, the heating sleeve is clamped on a Gas Chromatography (GC) sample inlet and is fixed by a stop screw, the structure of the whole heating pipeline can be kept stable, the heat on the GC sample inlet is utilized and conducted to the heating sleeve, the temperature rise rate of the pipeline in the heating sleeve can be obviously improved, and the whole thermal cracking system can enter a testing state more quickly.

Through the thermal cracking sample injection heating pipeline, on one hand, the length of the heating pipeline is reduced, and the speed and stability are remarkably improved by using the heating rod for heating compared with the annular heating in the traditional technology; on the other hand, the heat conducting clamp is adopted to heat the pipeline by utilizing the heat heated by the base of the thermal cracking detector, so that the heat utilization rate is improved, the cost is saved, and the temperature of the gas circuit between the base and the pipeline heating rod is ensured. Thereby guarantee that sample gas does not remain on the pipeline, guarantee the accuracy and the stability of twice testing results around, and connected mode is succinct, convenient debugging, and the effectual degree of difficulty that reduces production and debugging utilizes the base waste heat, practices thrift the cost, has more competitiveness economically.

Further, the gas pipeline is L type structure, the setting of the vertical section of L type structure is in heating sleeve is inboard, the heating rod is pressed close to the installation of the vertical section of L type structure.

Furthermore, the vertical section of L type structure is installed in the heating sleeve centre bore, the heating rod is N and centers on the centre bore equipartition.

Further, the trachea heat conducting clamp is connected with the base heating module and the heating sleeve, and one side of the trachea heat conducting clamp clamps the exposed trachea line.

Furthermore, the air pipe heat conducting clip is of a good heat conductor metal structure.

Further, the portion of the tracheal heat conducting clip coupled to the tracheal line is a clamping mechanism that can tightly clamp the tracheal line disposed outside the heating sleeve.

Additional aspects and advantages of embodiments of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a conventional heating circuit;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of a half-section of the heating jacket of FIG. 2;

FIG. 4 is a schematic top view of the structure of FIG. 2;

the device comprises an A2 temperature detector, an A3 annular heating pipe, a thermal cracking chamber 1, a base heating module 2, a gas pipe heat conducting clamp 3, a heating sleeve 4, a gas pipe circuit 5, a heating rod 6, a temperature monitor 7 and a separate display area B.

Detailed Description

The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

According to an embodiment of the utility model, the thermal cracking sample injection heating pipeline comprises a base heating module, a gas pipeline, a heating sleeve arranged on the periphery of the gas pipeline, a heating rod used for heating the heating sleeve, and a gas pipeline heat conduction clamp used for guiding heat dissipated by the base heating module, the heating rod and the heating sleeve into the gas pipeline exposed outside the heating sleeve and conducting heat in a matching manner with the gas pipeline exposed outside the heating sleeve.

According to some embodiments of the utility model, the gas line is an L-shaped structure, the L-shaped structure vertical section is disposed inside the heating sleeve, and the heating rod is mounted proximate to the L-shaped structure vertical section.

According to some embodiments of the utility model, the L-shaped structural vertical sections are mounted in a central hole of the heating sleeve, and the number of the heating rods is N and is uniformly distributed around the central hole.

According to some embodiments of the utility model, the gas tube heat conducting clip is associated with the base heating module and the heating sleeve and grips the exposed gas tube line on one side.

According to one embodiment of the utility model, the tracheal heat conducting clip is a good conductor of heat metal structure.

According to some embodiments of the utility model, the portion of the tracheal heat conducting clip coupled to the tracheal line is a clamping mechanism that can tightly clamp the tracheal line disposed outside the heating sleeve.

While a bench top embodiment of the hydraulic servo system of the present invention has been shown and described, those of ordinary skill in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal cracking sample feeding heating pipeline is characterized in that: the heating device comprises a base heating module, a gas pipeline, a heating sleeve arranged on the periphery of the gas pipeline, a heating rod for heating the heating sleeve, a gas pipeline heat conduction clamp, a heat pipe heat conduction clamp and a heat pipe heat conduction clamp, wherein the base heating module, the heating rod and the heating sleeve are exposed outside the heating sleeve in a heat dissipation and leading-in mode, and the gas pipeline is exposed outside the heating sleeve and is matched with the gas pipeline for heat conduction.

2. A thermal cracking sample introduction heating pipeline according to claim 1, wherein the gas pipeline is of an L-shaped structure, the vertical section of the L-shaped structure is disposed inside the heating sleeve, and the heating rod is installed close to the vertical section of the L-shaped structure.

3. A thermal cracking sample heating pipeline according to claim 2, wherein the L-shaped vertical section is installed in the central hole of the heating sleeve, and the number of the heating rods is N and is uniformly distributed around the central hole.

4. A thermal cracking sample introduction heating circuit according to claim 1, wherein the gas tube heat conducting clip is coupled to the base heating module and the heating sleeve, and has one side holding the exposed gas tube circuit.

5. A thermal cracking sample introduction heating circuit according to claim 4, wherein the gas tube heat conducting clip is a good heat conductor metal structure.

6. A thermal cracking sample introduction heating tube according to claim 4, wherein the portion of the gas tube heat conducting clamp coupled to the gas tube is a clamping mechanism for tightly clamping the gas tube outside the heating sleeve.