CN210663903U

CN210663903U - Multifunctional tubular atmosphere furnace

Info

Publication number: CN210663903U
Application number: CN201921382297.7U
Authority: CN
Inventors: 文斌; 董金龙; 刘宪
Original assignee: Taiyuan Normal University
Current assignee: Taiyuan Normal University
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-06-02
Anticipated expiration: 2029-08-23

Abstract

The utility model belongs to the material thermal treatment field, concretely relates to multi-functional tubular atmosphere stove. The utility model aims at solving the technical problems that the design of the gas outlet of the prior most tubular furnaces is simpler, the air is very easily sucked in the furnace body in a negative pressure state, the protective gas is polluted, and the performance of sample materials is influenced. The utility model comprises a gas storage device, a quartz glass tube, a first sealing element, a second sealing element, a furnace lining, a heating device and a vacuum pump. The utility model discloses a set up and prevent suck-back device, connect gradually a container and No. two containers with the gas outlet, the U-shaped pipe end that inserts in No. two container liquids is sealed by liquid, and when negative pressure state, connect atmospheric pipeline entering outside air on No. two containers, U-shaped intraductal liquid is inhaled to a container, prevents effectively that the air from suck-back to the furnace wall in, can not pollute protective gas and influence sample material's performance.

Description

Multifunctional tubular atmosphere furnace

Technical Field

The utility model belongs to the material thermal treatment field, concretely relates to multi-functional tubular atmosphere stove.

Background

The tubular atmosphere furnace is mainly applied to industries such as metallurgy, glass, heat treatment, new materials, grinding tools and the like, and is used for measuring professional equipment of materials under certain temperature and atmosphere conditions. At present, the gas path system of most tubular furnaces is simple in design, and the gas inlet channel is single in design and cannot meet the requirement of multi-atmosphere control operation; and when the furnace body is in a negative pressure state, air is easily sucked back, so that protective gas is polluted, and the performance of a sample material is influenced. In addition, most thermocouples of the atmosphere furnace are arranged on the outer wall of the furnace tube, and the measured temperature has an error with the temperature in the furnace body. Therefore, based on the defects, the vacuum tube type atmosphere furnace is further optimized, and the important point is that more intimate and convenient equipment is provided for users.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the gas outlet design of present majority tubular furnace fairly simplely, very easily suck-in air when the furnace body is negative pressure state, pollute protective gas, influence technical problem such as performance of sample material, provide a multi-functional tubular atmosphere stove. In order to solve the technical problem, the utility model discloses a technical scheme does:

a multifunctional tubular atmosphere furnace comprises a gas storage device, a quartz glass tube, a first sealing element, a second sealing element, a furnace lining, a heating device and a vacuum pump, wherein two ends of the quartz glass tube are respectively sealed by the first sealing element and the second sealing element, the first sealing element is provided with a gas inlet and a temperature measuring hole, the second sealing element is provided with a vacuum pumping port and a gas outlet, the temperature measuring hole on the first sealing element is inserted with the temperature measuring device, a temperature measuring probe of the temperature measuring device is positioned in the quartz glass tube, the gas storage device is connected with the gas inlet on the first sealing element through a pipeline with a flow meter and a valve, the quartz glass tube is inserted in the middle of the furnace lining, the heating device is arranged outside the quartz glass tube in the furnace lining, the vacuum pumping port pipeline on the second sealing element is divided into two paths, and one path is connected with the vacuum pump through a pipeline provided with a valve, another way is connected with the furnace lining through the pipeline that is equipped with the manometer, the gas outlet of No. two sealing members is connected with a container of preventing suck-back device through the pipeline that is equipped with the valve, prevent suck-back device including a container, No. two containers and U-shaped pipe, No. two liquid is equipped with in the container, the both ends of U-shaped pipe insert respectively under the liquid level of a container and No. two containers, No. two containers are connected with the atmosphere through setting up the pipeline above the liquid level, set up like this and connect gradually a container and No. two containers with the gas outlet, insert the U-shaped pipe end in No. two container liquids and seal by liquid, when negative pressure state, connect atmospheric pipeline entering outside air on No. two containers, the liquid is inhaled to a container in the U-shaped intraductal, prevents effectively that the air from suck-back to the furnace lining in, can not pollute protective gas and influence the performance of sample.

Further, the gas storage device comprises a plurality of gas storage tanks, and the plurality of gas storage tanks are arranged, so that different protective gases can be filled into each gas storage tank, and multiple working atmospheres can enter the furnace lining simultaneously.

Still further, multi-functional tubular atmosphere stove still includes intelligent temperature controller/regulator, intelligence temperature controller/regulator is connected with heating device, flow meter, manometer for through the display panel control of intelligent temperature controller/regulator with show temperature, show flow and pressure, set up like this and compare in key control, more succinct, pleasing to the eye coordination. Besides displaying the real-time temperature in the furnace body, the intelligent temperature controller/regulator can also regulate the temperature, can also display the current gas pressure and the gas inlet flow in the furnace body, and saves the inconvenience caused by the external arrangement of a pressure gauge.

Furthermore, the heating device is an electric heating wire or a iodine tungsten lamp, a groove is carved on the furnace lining part contacted with the quartz glass tube, the size of the groove is matched with the size of the heating wire and the size of the iodine tungsten lamp, the installation and the replacement of the heating wire and the iodine tungsten lamp are convenient, and the heating mode can be switched according to the actual requirement.

Furthermore, the first sealing element and the second sealing element are rubber plugs or flange plates, and the rubber plugs and the flange plates are provided with holes, so that the air pipe and the thermocouple sleeve can be conveniently connected, the operation is simple, and the sealing performance is good.

Furthermore, the temperature measuring device is a K-type thermocouple which is arranged above the sample to be measured in the furnace body, and the temperature measuring device is simple in structure, light in weight, high in measuring precision, large in measurable temperature range and good in heat resistance.

Furthermore, the furnace lining is made of rigid ceramic fiber materials, and the materials are light in weight, high temperature resistant, good in thermal stability, low in thermal conductivity and resistant to mechanical vibration.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a set up and prevent suck-back device, connect gradually a container and No. two containers with the gas outlet, the U-shaped pipe end that inserts in No. two container liquids is sealed by liquid, and when negative pressure state, connect atmospheric pipeline entering outside air on No. two containers, U-shaped intraductal liquid is inhaled to a container, prevents effectively that the air from suck-back to the furnace wall in, can not pollute protective gas and influence sample material's performance.

2. The gas storage device comprises a plurality of gas storage tanks, and the plurality of gas storage tanks are arranged in such a way, so that different protective gases can be filled into each gas storage tank, and multiple working atmospheres can enter the furnace body simultaneously.

3. The utility model discloses the thermoscope hole cartridge on the sealing member has temperature measuring device, and makes temperature measuring device's temperature probe is located quartz glass intraductally, the temperature in the more accurate control furnace body.

3. Multifunctional tubular atmosphere stove still includes intelligent temperature controller/regulator, intelligence temperature controller/regulator is connected with heating device, flow meter, manometer for through the display panel control of intelligence temperature controller/regulator with show temperature, show flow and pressure, set up like this and compare in key control, it is more succinct, pleasing to the eye coordination. Besides displaying the real-time temperature in the furnace body, the intelligent temperature controller/regulator can also regulate the temperature, can also display the current gas pressure and the gas inlet flow in the furnace body, and saves the inconvenience caused by the external arrangement of a pressure gauge.

4. Heating device is heating wire or iodine tungsten lamp, is carved with the recess with the furnace wall part that quartz glass pipe contacted, and the heater strip and iodine tungsten lamp are matchd simultaneously to the recess size, and the installation and the change of the heater strip and the iodine tungsten lamp of being convenient for can switch the heating method according to actual need.

5. A sealing member and No. two sealing members are rubber buffer or ring flange, and rubber buffer and ring flange have the punchhole, are convenient for connect trachea and thermocouple sleeve, easy operation, leakproofness are good.

6. Temperature measuring device is K type thermocouple, and the top of the inside sample that awaits measuring of furnace body is arranged in to the thermocouple, its simple structure, and weight is lighter, and measuring precision is high, and measurable temperature range is big moreover, and heat resistance is better.

7. The furnace lining is rigid ceramic fiber material, and this kind of material weight is lighter, high temperature resistant, thermal stability is good, the heat conductivity is low, resistant mechanical shock.

Drawings

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

FIG. 2 is a schematic structural view of the suck-back prevention device of the present invention;

in the figure: 1-gas storage device, 2-quartz glass tube, 3-first sealing element, 4-second sealing element, 5-temperature measuring device, 6-furnace lining, 7-heating device, 8-suck-back prevention device, 801-first container, 802-second container, 803-U-shaped tube, 9-vacuum pump and 10-intelligent temperature controller/regulator.

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.

Examples

As shown in fig. 1-2, in this embodiment, the multifunctional tubular atmosphere furnace includes a gas storage device 1, a quartz glass tube 2, a first sealing member 3, a second sealing member 4, a furnace lining 6, a heating device 7, and a vacuum pump 9, two ends of the quartz glass tube 2 are respectively sealed by the first sealing member 3 and the second sealing member 4, the first sealing member 3 is provided with a gas inlet and a temperature measuring hole, the second sealing member 4 is provided with a vacuum pumping port and a gas outlet, the temperature measuring hole on the first sealing member 3 is inserted with the temperature measuring device 5, and a temperature measuring probe of the temperature measuring device 5 is located in the quartz glass tube 2, the gas storage device 1 is connected with the gas inlet on the first sealing member 3 through a pipeline with a flow meter and a valve, the quartz glass tube 2 is inserted in the middle of the furnace lining 6, the heating device 7 is disposed outside the quartz glass tube 2 in the furnace lining 6, the evacuation mouth pipeline on No. two sealing members 4 divides two the tunnel, and pipeline and vacuum pump 9 through being equipped with the valve are connected on one hand, and another way is connected with furnace lining 6 through the pipeline that is equipped with the manometer, No. two the gas outlet of sealing member 4 is connected with container 801 of suck-back prevention device 8 through the pipeline that is equipped with the valve, suck-back prevention device 8 is including container 801, No. two container 802 and U-shaped pipe 803, No. two be equipped with liquid in the container 802, the both ends of U-shaped pipe 803 insert respectively under the liquid level of container 801 and No. two container 802, No. two container 802 is connected with the atmosphere through setting up the pipeline in the liquid level top.

The gas storage device 1 comprises a plurality of gas storage tanks.

The multifunctional tubular atmosphere furnace is also produced by Xiamen space-electricity automation science and technology Limited company, the model is an intelligent temperature controller/regulator 10 of AI-3556P, the intelligent temperature controller/regulator 10 is an ultra-thin intelligent temperature controller/regulator which integrates the functions of measurement, display, control, alarm, recording and the like, and can realize the accurate measurement and control of parameters such as temperature, pressure, flow and the like, the intelligent temperature controller/regulator 10 is connected with a heating device 7, a flow meter and a pressure meter and is used for controlling and displaying temperature, flow and pressure through a display panel of the intelligent temperature controller/regulator 10.

The heating device 7 is an electric heating wire or an iodine tungsten lamp.

A sealing member 3 and No. two sealing members 4 are rubber buffer or ring flange.

The temperature measuring device 5 is a K-type thermocouple.

The furnace lining 6 is made of rigid ceramic fiber materials.

The working principle is as follows: firstly, feeding a material to be measured into a quartz glass tube 2, installing a rubber plug or a flange plate, then closing all valves, sequentially opening a vacuum pump 9 and a valve connected with a vacuum pump pipeline to vacuumize the quartz glass tube 2, opening a valve on a pipeline connected with an air outlet to deflate when the air pressure in the furnace lining 6 is higher than one atmosphere to discharge redundant air, connecting the air outlet with an anti-suck-back device 8, preventing air from sucking back in the furnace lining 6, repeatedly replacing the air according to needs, finally carrying out programmed temperature rise through the intelligent temperature controller/regulator 10 to heat the quartz glass tube 2, continuously blowing the material to be measured by the protective air during heating, and after heating is finished, cooling the quartz glass tube 2 to a specified temperature, sequentially closing a valve on the pipeline connected with the air outlet and a valve connected with the air inlet pipeline, unloading the rubber plug or the flange plate, taking out the sample, and finishing the heat treatment of the material to be detected.

The utility model discloses a gas storage device 1, quartz glass pipe 2, a sealing member 3, No. two sealing members 4, temperature measuring device 5, furnace wall 6, heating device 7, prevent that suck-back device 8, 1 container 80, No. two container 802, U-shaped pipe 803, vacuum pump 9, intelligent temperature controller/regulator 10 are the general standard or the part that technical staff in the field know, and its structure and principle all learn through the technical manual or learn through conventional experimental method for this technical staff.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A multifunctional tubular atmosphere furnace is characterized in that: the device comprises a gas storage device (1), a quartz glass tube (2), a first sealing element (3), a second sealing element (4), a furnace lining (6), a heating device (7) and a vacuum pump (9), wherein two ends of the quartz glass tube (2) are respectively sealed by the first sealing element (3) and the second sealing element (4), a gas inlet and a temperature measuring hole are formed in the first sealing element (3), a vacuumizing port and a gas outlet are formed in the second sealing element (4), a temperature measuring device (5) is inserted into the temperature measuring hole in the first sealing element (3), a temperature measuring probe of the temperature measuring device (5) is positioned in the quartz glass tube (2), the gas storage device (1) is connected with the gas inlet in the first sealing element (3) through a pipeline with a flow meter and a valve, the quartz glass tube (2) is inserted into the middle of the furnace lining (6), the utility model discloses a quartz glass manages outside of (2) in furnace wall (6) is equipped with heating device (7), the evacuation mouth pipeline on No. two sealing members (4) divides two the tunnel, and pipeline and vacuum pump (9) through being equipped with the valve are connected on one hand, and another way is connected with furnace wall (6) through the pipeline that is equipped with the manometer, the gas outlet of No. two sealing members (4) is connected with a container (801) of suck-back prevention device (8) through the pipeline that is equipped with the valve, suck-back prevention device (8) are including a container (801), No. two containers (802) and U-shaped pipe (803), be equipped with liquid in No. two containers (802), the both ends of U-shaped pipe (803) insert respectively under the liquid level of a container (801) and No. two containers (802), No. two containers (802) are connected with the atmosphere through setting up the pipeline in the liquid level top.

2. A multi-functional tubular atmosphere furnace according to claim 1, wherein: the gas storage device (1) comprises a plurality of gas storage tanks.

3. A multi-functional tubular atmosphere furnace according to claim 1, wherein: the multifunctional tubular atmosphere furnace further comprises an intelligent temperature controller/regulator (10), wherein the intelligent temperature controller/regulator (10) is connected with the heating device (7), the flowmeter and the pressure gauge and is used for controlling and displaying the temperature, the flow and the pressure through a display panel of the intelligent temperature controller/regulator (10).

4. A multi-functional tubular atmosphere furnace according to claim 1, wherein: the heating device (4) is an electric heating wire or an iodine tungsten lamp.

5. A multi-functional tubular atmosphere furnace according to claim 1, wherein: a sealing member (3) and No. two sealing member (4) are rubber buffer or ring flange.

6. A multi-functional tubular atmosphere furnace according to claim 1, wherein: the temperature measuring device (5) is a K-type thermocouple.

7. A multi-functional tubular atmosphere furnace according to claim 1, wherein: the furnace lining (6) is made of rigid ceramic fiber materials.