CN213210009U - Gas chromatograph with automatic heating device - Google Patents
Gas chromatograph with automatic heating device Download PDFInfo
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- CN213210009U CN213210009U CN202022273079.9U CN202022273079U CN213210009U CN 213210009 U CN213210009 U CN 213210009U CN 202022273079 U CN202022273079 U CN 202022273079U CN 213210009 U CN213210009 U CN 213210009U
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- heating
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Abstract
The utility model discloses a gas chromatograph with an automatic heating device, which comprises a gas chromatograph body and at least one heating component, wherein an air inlet of the gas chromatograph body is communicated with a gas sampling pipe, a temperature sensor is embedded on the gas sampling pipe, a heating hose is sleeved on the outer wall of the gas sampling pipe, at least one mounting groove is arranged inside the pipe wall of the heating hose, at least one heating component is respectively and correspondingly arranged in the mounting groove, the signal output end of the temperature sensor is connected to the signal input end of a controller and the temperature sensor, the power input ends of the heating assembly and the controller are connected to the power output end of the storage battery, the signal output end of the controller is connected with the signal input end of the heating assembly, and the controller judges whether to form a loop with the heating assembly and the storage battery according to temperature data of the gas sampling pipe detected by the temperature sensor. The utility model discloses can avoid high boiling point gas to condense at the inner wall of gas injector to influence gas chromatograph's detection accuracy nature.
Description
Technical Field
The utility model relates to a gas chromatograph technical field especially relates to a gas chromatograph with self-heating device.
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.
The gas injector is used for gas to enter the gas chromatograph, and before the gas enters the gas injector, the gas injector needs to be vacuumized in advance. In the prior art, when gas with high boiling point enters a gas injector, the gas is easily condensed on the inner wall of the gas injector due to the lack of a heating device, so that the detection accuracy of the gas chromatograph is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a gas chromatograph equipped with an automatic heating device for solving the above-mentioned technical problems.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model provides a gas chromatograph with self-heating device, including gas chromatograph body and at least one heating element, the air inlet intercommunication of gas chromatograph body has gaseous sample tube, it is equipped with temperature sensor to inlay on the gaseous sample tube, the outer wall of gaseous sample tube has cup jointed heating hose, at least one mounting groove has been seted up to heating hose's pipe wall inside, heating element corresponds the setting in the mounting groove respectively, temperature sensor's signal output part is connected to the signal input part of controller, temperature sensor, the power input part of heating element and controller all is connected to the power output end of battery, the signal output part of controller is connected with heating element's signal input part, the controller judges whether to form the return circuit with heating element and battery according to the temperature data of the gaseous sample tube that temperature sensor detected.
Further, the number of the mounting grooves and the number of the heating assemblies are 4.
Further, 4 mounting grooves are equidistantly arranged.
Further, the heating assembly comprises at least one PTC ceramic heating piece and electrodes, the at least one PTC ceramic heating piece is connected through a lead, and the electrodes are arranged on two sides of the PTC ceramic heating piece respectively.
Further, still include the mica film, the heating element is wrapped up in to the mica film.
Further, the signal input end of the heating assembly is connected with the signal output end of the controller through a lead.
Further, the heated hose is a braided hose.
The beneficial effects of the utility model reside in that: when gas gets into gas injector, temperature sensor detects gas injector's temperature and transmits temperature data to controller in real time, the controller judges whether to form the return circuit with heating element and battery according to the temperature data of the gas injection pipe that temperature sensor detected, when gas injection pipe actual temperature is less than preset temperature, heating element continues the output heat to gas injection pipe, can avoid high boiling point gas to condense the inner wall at gas injector, thereby influence gas chromatograph's detection accuracy nature.
Drawings
Fig. 1 is a schematic structural diagram of a gas chromatograph provided with an automatic heating device according to the present invention;
fig. 2 is a schematic structural diagram of a heating assembly of a gas chromatograph equipped with an automatic heating device according to the present invention.
Reference numerals:
1-heating component, 2-gas sampling tube, 3-temperature sensor, 4-heating hose, 5-mounting groove, 6-controller, 7-storage battery, 8-PTC ceramic heating piece, 9-electrode and 10-lead.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 efforts belong to the protection scope of the present invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 and fig. 2, the utility model provides a gas chromatograph with self-heating device, including gas chromatograph body and at least one heating element 1, the air inlet intercommunication of gas chromatograph body has gaseous appearance pipe 2 that advances, inlay on the gaseous appearance pipe 2 and be equipped with temperature sensor 3, the outer wall of gaseous appearance pipe 2 has cup jointed heating hose 4, at least one mounting groove 5 has been seted up to heating hose 4's pipe wall inside, heating element 1 corresponds the setting respectively in mounting groove 5, temperature sensor 3's signal output part is connected to the signal input part of controller 6, temperature sensor 3, the power input part of heating element 1 and controller 6 all is connected to the power output part of battery 7, the signal output part of controller 6 is connected with the signal input part of heating element 1.
The current of the storage battery 7 flows out from the positive pole and flows to the heating assembly 1 through the controller 6, the heating assembly 1 converts the electric energy into heat energy and continuously outputs the heat energy to the gas sample inlet pipe 2, and finally the current flows back from the negative pole of the storage battery 7, namely the controller 6, the heating assembly 1 and the storage battery 7 form a first loop; similarly, the controller 6, the temperature sensor 3, and the battery 7 form a second loop. The controller 6 determines whether to form a first loop with the heating module 1 and the storage battery 7 according to the temperature data of the gas sampling pipe 2 detected by the temperature sensor 3, thereby controlling whether the heating module 1 is operated.
Further, in this embodiment, the heating assembly 1 includes at least one PTC ceramic heating sheet 8 and electrodes 9, the PTC ceramic heating sheet 8 has the characteristics of no open fire and high heat conversion rate, the electrodes 9 are respectively disposed on two sides of the PTC ceramic heating sheet 8, the electrodes 9 have the functions of conducting electricity and transferring heat, at least one PTC ceramic heating sheet 8 is connected by a lead 10, and a signal input end of the heating assembly 1 is connected with a signal output end of the controller 6 through the lead 10. The electric power is transmitted from the electrodes 9 to the PTC ceramic heating sheets 8 through the wires 10, and the PTC ceramic heating sheets 8 can rapidly convert the electric power into heat energy.
Further, in this embodiment, a mica film is further included, and the mica film wraps the heating element 1. So set up, not only be favorable to saving space, can also prevent heating element 1 electric leakage, improved the security.
Further, in this embodiment, the heating hose 4 is a stainless steel metal braided hose, which not only can be adapted to a soft air inlet pipe and is convenient to assemble and disassemble, but also has good heat conductivity and corrosion resistance.
Further, in the present embodiment, the number of the mounting grooves 5 and the number of the heating elements 1 are set to 4. Preferably, 4 mounting grooves 5 equidistance setting improve heating efficiency, reduce the heat waste.
During the use, predetermine required use temperature and save in controller 6, when gaseous entering gas sample injector, temperature sensor 3 real-time detection gas sample injector's temperature and transmission temperature data to controller 6, controller 6 judges according to the temperature data of the gas sampling pipe 2 that temperature sensor 3 detected whether to form the return circuit with heating element 1 and battery 7, when gas sampling pipe 2 actual temperature is less than preset temperature, controller 6 forms the return circuit with heating element 1 and battery 7, heating element 1 lasts the output heat to gas sampling pipe 2, can avoid high boiling point gas to condense the inner wall at gas sample injector, thereby influence gas chromatograph's detection accuracy nature.
Finally, it should be noted that: the embodiment of the present invention is only disclosed as a preferred embodiment of the present invention, and is only used for illustrating the technical solution of the present invention, not limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. The utility model provides a gas chromatograph with self-heating device, a serial communication port, including gas chromatograph body and at least one heating element, the air inlet intercommunication of gas chromatograph body has gaseous sample tube, inlay on the gaseous sample tube and be equipped with temperature sensor, the outer wall of gaseous sample tube has cup jointed the heating hose, at least one mounting groove has been seted up to the pipe wall inside of heating hose, heating element corresponds the setting in the mounting groove respectively, temperature sensor's signal output part is connected to the signal input part of controller, temperature sensor, the power input part of heating element and controller all is connected to the power output part of battery, the signal output part of controller is connected with heating element's signal input part, the controller judges whether to form the return circuit with heating element and battery according to the temperature data of the gaseous sample tube that temperature sensor detected.
2. A gas chromatograph provided with an automatic heating device according to claim 1, wherein the number of the mounting grooves and the number of the heating units are each set to 4.
3. A gas chromatograph provided with an automatic heating device according to claim 2, characterized in that 4 mounting grooves are provided at equal intervals.
4. A gas chromatograph provided with an automatic heating device according to claim 1 or 2, wherein the heating assembly comprises at least one PTC ceramic heater chip and electrodes, the at least one PTC ceramic heater chip is connected by a lead wire, and the electrodes are respectively disposed on both sides of the PTC ceramic heater chip.
5. The gas chromatograph with automatic heating device of claim 4, further comprising a mica film, wherein the mica film covers the heating element.
6. A gas chromatograph having an automatic heating device according to claim 5, wherein the signal input of the heating element is connected to the signal output of the controller by a wire.
7. A gas chromatograph provided with an automatic heating device according to claim 1 or 2, characterized in that the heating hose is a braided hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022273079.9U CN213210009U (en) | 2020-10-13 | 2020-10-13 | Gas chromatograph with automatic heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022273079.9U CN213210009U (en) | 2020-10-13 | 2020-10-13 | Gas chromatograph with automatic heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213210009U true CN213210009U (en) | 2021-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022273079.9U Active CN213210009U (en) | 2020-10-13 | 2020-10-13 | Gas chromatograph with automatic heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213210009U (en) |
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2020
- 2020-10-13 CN CN202022273079.9U patent/CN213210009U/en active Active
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