Inductive coupling high-temperature heating furnace

Abstract

The utility model belongs to the technical field of high-temperature heating furnaces, and discloses an inductive coupling high-temperature heating furnace. According to the inductive coupling high-temperature heating furnace, a sample to be detected can be conveniently brought into the coupling pipe through the sample feeder, the high-frequency power supply provides high-frequency current for the inductance coil, the high-frequency current generates an alternating magnetic field after passing through the inductance coil, the alternating magnetic field acts on a heating medium to generate eddy current, and then heat is generated and transmitted to the coupling pipe; heating the sample to be detected in the coupling tube; according to the inductive coupling high-temperature heating furnace, direct energy transfer caused by electromagnetic induction is adopted, rapid response of heating temperature rise can be achieved in a very short time, and the heating efficiency is relatively high; by adjusting the frequency, the voltage, the working time and other parameters of the high-frequency power supply, high-precision control over the heating temperature can be achieved, and the strict requirement of a special technology for the heating temperature is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to high temperature heating furnace technical field, concretely relates to a kind of inductive coupling high temperature heating furnace. BACKGROUND

[0002] In scientific experiments, specific objects are often heated at high temperatures to analyze specific objects. For example, before using a chromatograph to perform chromatographic analysis on a test sample, the test sample needs to be heated at high temperature to release target elements. Currently, the market mainly uses resistance furnaces or siliconization furnaces to heat test samples, which has slow temperature rise response speed and low heating efficiency. In addition, the heating temperature control precision of the test sample is low, which is difficult to meet the strict requirements of special processes on heating temperature. Therefore, it is necessary to improve the design of the current heating furnace. SUMMARY

[0003] The utility model aims at providing a kind of inductive coupling high temperature heating furnace to realize heating temperature rise fast response, and heating temperature control precision is high.

[0004] The utility model discloses a kind of inductive coupling high temperature heating furnaces to achieve the above-mentioned purposes, using the following technical solutions:

[0005] A kind of inductive coupling high temperature heating furnace, comprising:

[0006] Coupling pipe;

[0007] Sample feeder, for placing test sample, for bringing test sample into the inside of the coupling pipe from one end of the coupling pipe;

[0008] Heating medium, arranged outside the coupling pipe;

[0009] Inductive coil, wound outside the heating medium;

[0010] High-frequency power supply, electrically connected with the inductive coil;

[0011] High-frequency power supply provides high-frequency current for the inductive coil, and the high-frequency current generates alternating magnetic field after passing through the inductive coil, and the alternating magnetic field acts on the heating medium to generate eddy current.

[0012] Further, it further includes annular heating medium pipe, the heating medium pipe is filled with the heating medium, and the heating medium pipe is wrapped outside the coupling pipe.

[0013] Further, the opening inner diameter of one end of the coupling pipe gradually increases from inside to outside.

[0014] Further, the opening cross section of the other end of the coupling pipe is smaller than the opening cross section of one end of the coupling pipe.

[0015] Further, the sample feeder is arranged in a columnar structure.

[0016] One end of the sample feeder is arranged to extend into the interior of the coupling tube, and the one end of the sample feeder is provided with a bearing groove for placing the sample to be detected.

[0017] Further, the other end of the sample feeder is provided with a sealing ring.

[0018] After the one end of the sample feeder extends into the interior of the coupling tube, the sealing ring abuts against the inner wall of the coupling tube.

[0019] Further, the sample feeder further comprises a heat preservation bin which at least partially wraps the coupling tube.

[0020] Further, the heating medium is made of graphite and / or electromagnetic heating metal material.

[0021] Further, the coupling tube is made of quartz material.

[0022] The beneficial effects of the present application are as follows:

[0023] The inductively coupled high-temperature heating furnace is characterized in that: the sample feeder can conveniently bring the sample to be detected into the interior of the coupling tube; the high-frequency power supply provides high-frequency current for the inductor coil; the high-frequency current generates an alternating magnetic field after passing through the inductor coil; the alternating magnetic field acts on the heating medium to generate eddy current, and then heat is transferred to the coupling tube to heat the sample to be detected in the coupling tube; the inductively coupled high-temperature heating furnace of the present application adopts direct energy transfer caused by electromagnetic induction, can realize rapid response of heating temperature rise in a very short time, and has relatively high heating efficiency; by adjusting the frequency, voltage and working time of the high-frequency power supply and other parameters, high-precision control of the heating temperature can be realized to meet the strict requirements of special processes on the heating temperature; in addition, compared with the traditional heating method, the inductively coupled high-temperature heating furnace does not have a direct combustion process, does not produce pollutants such as waste gas and waste residue, and is helpful to improve the environmental performance of industrial production. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of the inductively coupled high-temperature heating furnace of the present application Figure 1 ;

[0025] Figure 2 is a perspective view of the inductively coupled high-temperature heating furnace of the present application Figure 2 ;

[0026] Figure 3 is a front view of the inductively coupled high-temperature heating furnace of the present application

[0027] Figure 4 is a left view of the inductively coupled high-temperature heating furnace of the present application

[0028] Figure 5 It is the top view of the inductive coupling high-temperature heating furnace of the utility model;

[0029] Figure 6 It is Figure 5 It is the A-A section view of the utility model;

[0030] Figure 7 It is the perspective view of the sample feeder and sample box of the utility model;

[0031] Figure 8 It is the front view of the sample feeder and sample box of the utility model;

[0032] Reference signs:

[0033] 1, coupling pipe, 2, sample feeder, 21, bearing groove, 22, sample box, 23, sealing ring, 3, heating medium, 4, inductive coil, 5, high-frequency power supply, 6, support table, 61, support seat, 7, heating medium pipe, 8, heat preservation bin, 9, shell. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0035] In the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] Combined with Figures 1 to 8 As shown in the figure, the utility model provides an inductive coupling high-temperature heating furnace, which comprises a coupling pipe 1, a sample feeder 2, a heating medium 3, an inductive coil 4 and a high-frequency power supply 5.

[0037] A support seat 61 is arranged on each of the left and right sides of the support table 6, and the two ends of the coupling tube 1 are arranged on the support seats 61 respectively. The coupling tube 1 is made of quartz material, so that the coupling tube 1 has good high-temperature resistance and is not easy to be damaged by high temperature. The opening inner diameter of one end of the coupling tube 1 gradually increases from inside to outside, and is preferably a horn-shaped structure, so as to facilitate the sample feeder 2 to extend into the one end of the coupling tube 1 and also facilitate the sample feeder 2 to exit from the one end of the coupling tube 1. The opening cross section of the other end of the coupling tube 1 is smaller than that of the one end of the coupling tube 1. After the sample to be detected is input through the one end of the coupling tube 1, the amount of the sample to be detected discharged from the other end of the coupling tube 1 will be less than the amount input from the one end of the coupling tube 1, so as to ensure that there is always sample to be detected in the coupling tube 1, and avoid the problem that the sample to be detected input into the coupling tube 1 is quickly discharged from the other end of the coupling tube 1 after being input, resulting in poor heating effect of the sample to be detected.

[0038] The heat preservation bin 8 wraps the middle of the coupling tube and the heating medium 3 (heating position), so as to be heat insulated from the external environment, keep the temperature of the heating position stable, and further improve the temperature control precision. The shell 9 is arranged outside the heat preservation bin 9, so as to realize the protection of the heating furnace body.

[0039] The sample feeder 2 is used for placing the sample to be detected, and is used for bringing the sample to be detected into the inside of the coupling tube 1 from the one end of the coupling tube 1, so as to be heated at high temperature subsequently. The sample feeder 2 is arranged in a columnar structure, one end of the sample feeder 2 is used for extending into the inside of the coupling tube 1, and the one end of the sample feeder 2 is provided with a bearing groove 21 used for placing the sample to be detected. Specifically, a sample box 22 is arranged on the bearing groove 21, and the sample box 22 is used for containing the sample to be detected. The sample to be detected is contained by the sample box 22, so as to quickly convey the sample to be detected and improve the work efficiency. The other end of the sample feeder 2 is provided with a sealing ring 23, and after the one end of the sample feeder 2 extends into the inside of the coupling tube 1 from the one end of the coupling tube 1, the sealing ring 23 abuts against the inner wall of the coupling tube 1. It needs to be noted that the other end of the coupling tube 1 is connected with the next device. The sealing ring 23 abuts against the inner wall of the coupling tube 1, so as to form a closed space in the coupling tube 1 through the cooperation of the sample feeder 2 and the coupling tube 1, and make the sample to be detected be heated at high temperature in the closed space. The sample to be detected is heated at high temperature, so as to release target elements (such as non-metallic elements such as fluorine, chlorine, bromine, iodine and sulfur).

[0040] The heating medium 3 is arranged outside the coupling tube 1, and specifically, the heating medium 3 is filled in the heating medium tube 7, and the heating medium tube 7 wraps the outside of the coupling tube 1. Under the action of the alternating magnetic field, eddy current is generated in the heating medium 3, and then heat is generated, the heat is transmitted to the coupling tube 1, and the sample to be detected in the inside of the coupling tube 1 is heated. The coupling tube 1 has a sandwich layer, and the heating medium tube 7 is located in the sandwich layer. The heating medium 3 is made of graphite material; or the heating medium 3 is made of electromagnetic heating metal material; or the heating medium 3 is made of graphite material and electromagnetic heating metal material.

[0041] The inductor coil 4 is spirally wound outside the heating medium 3, and in this embodiment, the inductor coil 4 is made of a copper tube or an aluminum tube.

[0042] The high-frequency power supply 5 includes a rectifier, a filter, an inverter, a high-frequency oscillator, etc., and converts the alternating current of the power grid into the high-frequency alternating current required by the inductor coil 4, and the frequency is usually between tens of kilohertz and hundreds of kilohertz. The high-frequency power supply 5 is electrically connected with the inductor coil 4, and the high-frequency power supply 5 provides a high-frequency current for the inductor coil 4, and the high-frequency current generates an alternating magnetic field after passing through the inductor coil 4, and the alternating magnetic field acts on the heating medium 3 to generate eddy current.

[0043] The control unit is signal connected with the control end of the high-frequency power supply 5 and the temperature sensor in the heating furnace, etc., and is responsible for the overall operation control of the heating furnace, including power management, heating time control, temperature monitoring, etc., and is equipped with PLC to realize man-machine interaction.

[0044] So far, the embodiment has been described in detail in combination with the drawings. According to the above description, those skilled in the art should have a clear understanding of the inductively coupled high-temperature heating furnace of the utility model. The inductively coupled high-temperature heating furnace described in the utility model can conveniently bring the sample to be detected into the inside of the coupling pipe 1 through the sample feeder 2, and the high-frequency power supply 5 provides a high-frequency current for the inductor coil 4, and the high-frequency current generates an alternating magnetic field after passing through the inductor coil 4, and the alternating magnetic field acts on the heating medium 3 to generate eddy current, and then heat is transferred to the coupling pipe 1 to heat the sample to be detected in the coupling pipe 1; the inductively coupled high-temperature heating furnace of the utility model adopts direct energy transfer caused by electromagnetic induction, can realize rapid response of heating temperature rise in a very short time, and has relatively high heating efficiency; by adjusting the frequency, voltage and working time of the high-frequency power supply 5 and other parameters, high-precision control of the heating temperature can be realized, and the strict requirements of special processes on the heating temperature can be met; in addition, compared with the traditional heating method, the inductively coupled high-temperature heating furnace does not have a direct combustion process, does not produce waste gas, waste residue and other pollutants, and is helpful to improve the environmental protection performance of industrial production.

[0045] Of course, the above-mentioned is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model, and should be protected by the utility model.

Claims

1. An inductively coupled high temperature heating furnace characterized by, The application relates to an inductively coupled high-temperature heating furnace. The inductively coupled high-temperature heating furnace comprises a coupling tube, a sample feeder used for placing a sample to be detected and used for bringing the sample to be detected into the interior of the coupling tube from one end of the coupling tube, a heating medium arranged outside the coupling tube, an inductive coil arranged outside the heating medium, a high-frequency power supply electrically connected to the inductive coil, and the high-frequency power supply provides high-frequency current for the inductive coil, and the high-frequency current generates an alternating magnetic field after passing through the inductive coil, and the alternating magnetic field generates eddy current on the heating medium.

2. The inductively coupled high-temperature heating furnace according to claim 1 further comprises an annular heating medium tube, the heating medium tube is filled with the heating medium, and the heating medium tube is arranged outside the coupling tube.

3. The inductively coupled high-temperature heating furnace according to claim 1, wherein the opening inner diameter of one end of the coupling tube gradually increases from inside to outside.

4. The inductively coupled high-temperature heating furnace according to claim 1 or 3, wherein the opening section of the other end of the coupling tube is smaller than the opening section of one end of the coupling tube.

5. The inductively coupled high-temperature heating furnace according to claim 1, wherein the sample feeder is arranged in a columnar structure, one end of the sample feeder is used for extending into the interior of the coupling tube, and the one end of the sample feeder is provided with a bearing groove used for placing the sample to be detected.

6. The inductively coupled high-temperature heating furnace according to claim 5, wherein the other end of the sample feeder is provided with a sealing ring, and the sealing ring abuts against the inner wall of the coupling tube after the one end of the sample feeder extends into the interior of the coupling tube.

7. The inductively coupled high-temperature heating furnace according to claim 1, further comprising a heat preservation bin, and the heat preservation bin at least partially wraps the coupling tube.

8. The inductively coupled high-temperature heating furnace according to claim 1, wherein the heating medium is made of graphite and / or electromagnetic heating metal material.

9. The inductively coupled high-temperature heating furnace according to claim 1, wherein the coupling tube is made of quartz material. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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