Heating furnace temperature measuring mechanism

Abstract

The utility model discloses a heating furnace temperature measuring mechanism which comprises an outer furnace body, an inner furnace body is arranged on the bottom wall of an inner cavity of the outer furnace body, a cast ingot is arranged in the inner furnace body, a detection mechanism is fixedly connected to the periphery of the lower end of the inner furnace body, burners are fixedly connected to the two sides of the outer furnace body, and cooling mechanisms are fixedly connected to the two sides of the upper end of the outer furnace body. And an air inlet hole is formed in the upper end of the outer furnace body in a penetrating manner. The temperature of the equipment can be monitored and controlled in real time through the arranged detection mechanism, so that the temperature uniformity of the cast ingot in the heating process is ensured, and the quality of the cast ingot is improved; the device can effectively reduce the temperature of the furnace body through the arranged cooling mechanism, damage to the device caused by overheating is prevented, the stability and reliability of cooling are ensured through fixed connection of the installation base and the outer furnace body, the fan can automatically adjust the rotating speed according to the temperature in the furnace through the arrangement of the motor, and therefore the cooling air volume is controlled, and the service life of the device is prolonged. And an accurate temperature control effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating furnace, concretely to a heating furnace temperature measuring mechanism. BACKGROUND

[0002] Furnace gas temperature measurement and ingot temperature measurement are extremely important links of metal heat treatment, only after accurate temperature measurement, can temperature be controlled accurately. Pushing type heating furnace has multiple regions (generally 6-7 regions), each region has 4 burners, which are distributed on the left and right sides of the heating furnace, and each side has two burners. Each region is equipped with 5-6 ingots, and each region has an ingot temperature measurement system (the last region has two sets). When heating, the burners are ignited, the size of the flame is adjusted by adjusting the gas flow, the gas near the burner is heated, and the gas flow is driven by the circulating fan. Hot air is blown from the bottom of the furnace to the ingot, and the air after the ingot "cooling" (the ingot temperature is lower than the hot air temperature, and after heat exchange, the air leaving the ingot is always lower than the air blowing to the ingot) continues to be sent back to the burner by the circulating fan for heating. In this way, the temperature of the metal ingot is continuously raised by the continuous circulation of hot air. When keeping temperature and cooling, the principle is the same, the burners are in low power state or closed state;

[0003] Patent CN116893013A discloses a kind of heating furnace on-line automatic temperature measuring device, including heating furnace body, outer tube, infrared temperature measuring device and thermocouple temperature measuring device, and the outer wall of heating furnace body is connected with installation pipe, one end of outer tube is connected on the end face of installation pipe, the other end of outer tube is connected with cover plate, and cover plate is sequentially installed with infrared temperature measuring device, No. 1 electric push rod and No. 2 electric push rod from top to bottom on the other end of cover plate, the output end of No. 1 electric push rod and the output end of No. 2 electric push rod are all movably penetrated through cover plate and all extend into outer tube;The inner side of outer tube is fixedly connected with No. 1 outer baffle and No. 2 outer baffle on the side close to installation pipe, No. 1 outer baffle is located on the side close to installation pipe;No. 1 outer baffle and No. 2 outer baffle are fixedly connected with inner tube between them, and the two ends of inner tube are flush with the outer side of No. 1 outer baffle and No. 2 outer baffle;No. 1 inner baffle and No. 2 inner baffle are fixedly connected on the inner side of inner tube, and No. 1 inner baffle is located on the side close to installation pipe;The end of No. 1 inner baffle towards installation pipe is connected with outer sealing structure, and the end of No. 2 inner baffle away from installation pipe is connected with inner sealing structure;The end of No. 2 outer baffle away from installation pipe is connected with telescopic structure.

[0004] At present, the traditional heating furnace temperature control refers to according to temperature measurement data, the combustion system controls the ignition, extinction of burner and the air intake of burner to adjust the size of flame according to the set temperature, controls the furnace gas temperature to change in the required mode, so that the metal temperature of ingot in heating furnace reaches the expected value, in addition, the pushing type heating furnace using positive and negative electrode same body or non-contact ingot temperature measurement also often has frequent faults, and it often records the furnace gas temperature as the ingot temperature, which leads to the actual ingot measurement temperature being too high. Utility model content

[0005] The utility model discloses a heating furnace temperature measuring mechanism to solve the heating furnace temperature control in the background art, that is, according to the temperature data, the combustion system controls the ignition, the extinguishing of burner and the air intake of burner to adjust the size of flame according to the set temperature, controls the temperature of furnace gas to change according to the required mode, so that the metal temperature of cast ingot in the heating furnace reaches the expected value, in addition, the push type heating furnace using the positive and negative electrode same body or non-contact cast ingot temperature measurement also often has frequent faults, and the temperature of furnace gas is often recorded as the temperature of cast ingot, leading to the problem of actual cast ingot temperature measurement being too high.

[0006] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a heating furnace temperature measuring mechanism, including the outer furnace body, the bottom wall of the inner chamber of outer furnace body is provided with the inner furnace body, the inside of inner furnace body is provided with the cast ingot, the lower end of inner furnace body is fixedly connected with the detection mechanism around, the both sides of outer furnace body are fixedly connected with the burner, the upper end of outer furnace body is fixedly connected with the cooling mechanism on both sides, the upper end of outer furnace body is provided with the air inlet hole,

[0007] The detection mechanism includes a fixed seat, one side of the fixed seat is fixedly connected with the lower end of the inner furnace body, one side of the fixed seat is provided with a gas cylinder, an extension end of the gas cylinder is provided with a cross bar, one side of the cross bar is fixedly connected with a shell, one side of the inner wall of the shell is fixedly connected with a thermocouple anode, one side of the thermocouple anode is movably connected with a thermocouple cathode, one side of the shell is fixedly connected with a proximity switch, and the bottom of the thermocouple cathode is sleeved with a buffer spring.

[0008] Preferably, the lower end of the inner furnace body is fixedly connected with the inner chamber bottom wall of the outer furnace body, and the lower end of the cast ingot is movably connected with the inner chamber bottom wall of the inner furnace body.

[0009] Preferably, one side of the fixed seat is fixedly connected with one side of the gas cylinder, and the extension end of the gas cylinder is hingedly connected with one end of the cross bar.

[0010] Preferably, the upper end of the shell penetrates the bottom wall of the inner furnace body and extends into the inner furnace body.

[0011] Preferably, the cooling mechanism includes a mounting seat, the lower end of the mounting seat is fixedly connected with the upper end of the outer furnace body, the middle part of the mounting seat is provided with a motor, the output shaft of the motor is provided with a rotating rod, the lower end of the rotating rod is fixedly connected with a fan, and the outer side wall of the fan is embeddedly connected with a groove.

[0012] Preferably, the inner wall of the mounting seat is detachably connected with the outer wall of the motor, and the output shaft of the motor is in transmission connection with the upper end of the rotating rod.

[0013] Preferably, the output shaft of the motor penetrates the outer furnace body and is connected with the upper end of the rotating rod through a key.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、 Through the detection mechanism that sets up can make equipment can realize temperature real -time monitoring and control, so as to ensure the temperature uniformity of cast ingot in heating process, improve the quality of cast ingot, in addition, detection mechanism can also automatically adjust heating power, to adapt to the heating demand of different materials and different size cast ingot, so as to reach the purpose of energy saving and cost reduction;

[0016] 2、 Through the cooling mechanism that sets up can make equipment can effectively reduce the temperature of furnace body, prevent the damage caused by overheating to equipment, through the fixed connection of mounting seat and outer furnace body, ensure the stability and reliability of cooling, the setting of motor makes fan can automatically adjust the speed according to the temperature in the furnace, thereby controlling the cooling air volume, reaches the accurate temperature control effect, the transmission connection of rotating rod and motor output shaft and the solid connection of rotating rod and fan, guarantee the high efficiency of power transmission, the setting of recess makes fan can produce greater wind pressure when running, improves the cooling efficiency, in addition, the detachable connecting structure of mounting seat and motor, facilitate maintenance and replacement motor, improve the service life and maintenance convenience of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-dimensional cut open structure schematic diagram of the utility model;

[0018] Figure 2 It is the detection mechanism schematic diagram of the utility model;

[0019] Figure 3 It is the cooling mechanism schematic diagram of the utility model;

[0020] Figure 4 It is the three-dimensional structure side view schematic diagram of the utility model.

[0021] In the drawing: 1, outer furnace body;2, inner furnace body;3, cast ingot;4, detection mechanism;5, burner;6, cooling mechanism;7, air inlet hole;41, fixed seat;42, cylinder;43, cross bar;44, shell;45, thermocouple positive electrode;46, thermocouple negative electrode;47, proximity switch;48, buffer spring;61, mounting seat;62, motor;63, rotating rod;64, fan;65, recess. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figure 1 and Figure 4 The utility model provides a technical scheme: a kind of heating furnace temperature measuring mechanism, the inner chamber bottom wall of outer furnace body 1 is provided with inner furnace body 2, the inside of inner furnace body 2 is provided with ingot 3, the lower end of inner furnace body 2 is fixedly connected with detection mechanism 4 around, the both sides of outer furnace body 1 are fixedly connected with burner 5, the upper end of outer furnace body 1 is fixedly connected with cooling mechanism 6, the upper end of outer furnace body 1 is provided with air inlet hole 7, and detection mechanism 4 includes fixed seat 41, the side of fixed seat 41 is fixedly connected with the lower end of inner furnace body 2 around, the side of fixed seat 41 is provided with cylinder 42, the telescopic end of cylinder 42 is provided with cross bar 43, the side of cross bar 43 is fixedly connected with shell 44, the inner wall side of shell 44 is fixedly connected with thermocouple anode 45, the side of thermocouple anode 45 is movably connected with thermocouple cathode 46, the side of shell 44 is fixedly connected with proximity switch 47, the bottom of thermocouple cathode 46 is provided with buffer spring 48, the lower end of inner furnace body 2 is movably connected with the inner chamber bottom wall of outer furnace body 1, and the lower end of ingot 3 is movably connected with the inner chamber bottom wall of inner furnace body 2.

[0024] The setting of burner 5 can be injected in the both sides of outer furnace body 1 Fuel, to provide the heat required in heating furnace interior, cooling mechanism 6 is responsible for cooling outer furnace body 1 during heating, to prevent outer furnace body 1 from being damaged due to high temperature, air inlet hole 7 is used to introduce air or other gas, to support combustion process or adjust furnace atmosphere, the fixed seat 41 of detection mechanism 4 is fixedly connected with the lower end of inner furnace body 2 around, to ensure the stability of detection mechanism 4, cylinder 42 is connected with fixed seat 41, can be telescopic according to the need, to drive cross bar 43 to move accordingly, the other end of cross bar 43 is connected with shell 44, the inner wall side of shell 44 is fixedly connected with thermocouple anode 45, to measure the temperature of ingot 3, thermocouple cathode 46 and anode generate electromotive force through thermoelectric effect, to realize temperature measurement.

[0025] Please refer to Figure 2 , in order to quickly detect the temperature of ingot 3 in inner furnace body 2, the side of fixed seat 41 is fixedly connected with the side of cylinder 42, the telescopic end of cylinder 42 is hinged with one end of cross bar 43, and the upper end of shell 44 penetrates the bottom wall of inner furnace body 2 and extends to its inside.

[0026] The buffer spring 48 at the bottom of the thermocouple negative electrode 46 can absorb the impact force generated when the ingot 3 moves, protecting the thermocouple from damage, and the connection mode of the inner furnace body 2 and the outer furnace body 1 ensures the stability and safety of the ingot 3 during the heating process, realizing precise control of the internal temperature of the heating furnace to ensure the heating quality of the ingot 3.

[0027] Please refer to Figure 3 , in order to quickly transport air to the outer furnace body 1 to cool the ingot 3, the cooling mechanism 6 includes a mounting seat 61, the lower end of the mounting seat 61 is fixedly connected with the upper end of the outer furnace body 1, the middle part of the mounting seat 61 is provided with a motor 62, the output shaft of the motor 62 is provided with a rotating rod 63, the lower end of the rotating rod 63 is fixedly connected with a fan 64, the outer side wall of the fan 64 is embeddedly connected with a groove 65, the inner wall of the mounting seat 61 is detachably connected with the outer wall of the motor 62, the output shaft of the motor 62 is in transmission connection with the upper end of the rotating rod 63, and the output shaft of the motor 62 penetrates through the outer furnace body 1 and is in key connection with the upper end of the rotating rod 63;

[0028] The mounting seat 61 of the cooling mechanism 6 is arranged to be convenient to disassemble and maintain, ensuring that the motor 62 and the fan 64 can be quickly replaced or repaired when needed, the connection between the rotating rod 63 and the fan 64 is in embedded arrangement, so as to enhance the stability and durability of the structure, the arrangement of the groove 65 enables the fan 64 to more effectively guide air flow when in operation, thereby improving the cooling efficiency, in addition, the transmission connection between the motor 62 and the rotating rod 63 is in key connection, ensuring the accuracy and reliability of the transmission, and the arrangement of the entire cooling mechanism 6 enables the heating furnace to quickly respond to the cooling demand during the heating process of the ingot 3, ensuring that the temperature of the ingot 3 is controlled within the ideal range, thereby improving the production efficiency and the quality of the ingot 3, the operator starts the air cylinder 42, the telescopic end of the air cylinder 42 drives the cross rod 43 and the shell 44 to move upward until the thermocouple anode 45 and the thermocouple cathode 46 contact the ingot 3 in the inner furnace body 2, at this time, the thermocouple anode 45 and the thermocouple cathode 46 form a closed loop through the ingot 3, a thermoelectric electromotive force is generated, and the temperature of the ingot 3 can be detected through the corresponding ingot 3 temperature measurement module, when the upper ends of the thermocouple anode 45 and the thermocouple cathode 46 do not contact the ingot 3, the thermocouple anode 45 and the thermocouple cathode 46 are suspended above, a closed loop is not formed, no thermoelectric electromotive force is generated, the temperature measurement does not record the temperature, and a temperature measurement fault alarm is issued, after the measurement is completed, the shell 44 is driven by the air cylinder 42 to return to the initial position, and the proximity switch 47 can detect whether the shell 44 returns to the initial position.

[0029] Working principle: first through the setting of the burner 5, can be in the two sides of the outer furnace body 1 fuel injection, to provide the required heat inside the heating furnace, cooling mechanism 6 is responsible for cooling in the process of heating the outer furnace body 1, to prevent the outer furnace body 1 due to high temperature and damage, air inlet hole 7 for the introduction of air or other gases, to support the combustion process or adjust the atmosphere in the furnace, detection mechanism 4 of the fixed seat 41 and the lower end of the inner furnace body 2 around the solid connection, to ensure the stability of the detection mechanism 4, cylinder 42 is connected with the fixed seat 41, can be according to the need of telescopic movement, and then drive the cross bar 43 corresponding action, the other end of the cross bar 43 is connected with the shell 44, the inner wall of the shell 44 is fixed with the positive electrode of thermocouple 45, for measuring the temperature of the ingot 3, the thermocouple negative electrode 46 and the positive electrode between the thermoelectric effect generates electromotive force, thereby realizing the measurement of temperature, the buffer spring 48 at the bottom of the thermocouple negative electrode 46 can absorb the impact force generated when the ingot 3 moves, protect the thermocouple from damage, the connection mode of the inner furnace body 2 and the outer furnace body 1 ensures the stability and safety of the ingot 3 in the process of heating, realizes the accurate control of the temperature in the heating furnace, to ensure the heating quality of the ingot 3;

[0030] Then through the mounting seat 61 of the cooling mechanism 6 is set to facilitate disassembly and maintenance, to ensure that when needed, the motor 62 and the fan 64 can be quickly replaced or repaired, the connecting rod 63 and the fan 64 are embedded, to enhance the stability and durability of the structure, the setting of the groove 65 makes the fan 64 can more effectively guide the air flow when running, thereby improving the cooling efficiency, in addition, the transmission connection between the motor 62 and the connecting rod 63 adopts key connection, to ensure the accuracy and reliability of the transmission, the whole cooling mechanism 6, so that the heating furnace can quickly respond to the cooling demand in the process of ingot 3 heating, to ensure that the temperature of the ingot 3 is controlled in the ideal range, thereby improving the production efficiency and the quality of the ingot 3, the operator starts the air cylinder 42, the telescopic end of the air cylinder 42 drives the cross bar 43 and the shell 44 to move upwards until the thermocouple positive electrode 45 and the thermocouple negative electrode 46 contact with the ingot 3 in the inner furnace body 2, at this time, the thermocouple positive electrode 45 and the thermocouple negative electrode 46 form a closed loop through the ingot 3, which will generate thermoelectric electromotive force, through the corresponding ingot 3 temperature measurement module can detect the temperature of the ingot 3, when the upper end of the thermocouple positive electrode 45 and the thermocouple negative electrode 46 does not contact the ingot 3, the thermocouple positive electrode 45 and the thermocouple negative electrode 46 are suspended above, no closed loop is formed, no thermoelectric electromotive force will be generated, the temperature measurement does not record the temperature, and sends temperature measurement fault alarm, after the measurement is completed, the shell 44 is driven by the air cylinder 42 to return to the initial position, the proximity switch 47 can detect whether the shell 44 returns to the initial position, the above is the working process of the whole device, and the contents not described in detail in the specification all belong to the existing technology known to those skilled in the art.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature measuring mechanism for a heating furnace comprising an outer furnace body (1), characterized in that: The inner cavity bottom wall of the outer furnace body (1) is provided with an inner furnace body (2), the inside of the inner furnace body (2) is provided with a cast ingot (3), the lower end of the inner furnace body (2) is fixedly connected with a detection mechanism (4), both sides of the outer furnace body (1) are fixedly connected with a burner (5), the upper end of the outer furnace body (1) is fixedly connected with a cooling mechanism (6), and the upper end of the outer furnace body (1) is provided with an air inlet hole (7). The detection mechanism (4) comprises a fixed seat (41), one side of the fixed seat (41) is fixedly connected with the lower end of the inner furnace body (2), one side of the fixed seat (41) is provided with a gas cylinder (42), the telescopic end of the gas cylinder (42) is provided with a cross rod (43), one side of the cross rod (43) is fixedly connected with a shell (44), the inner wall of the shell (44) is fixedly connected with a hot electrode positive pole (45), one side of the hot electrode positive pole (45) is movably connected with a hot electrode negative pole (46), one side of the shell (44) is fixedly connected with a proximity switch (47), and the bottom of the hot electrode negative pole (46) is sleeved with a buffer spring (48).

2. The temperature measuring mechanism of a heating furnace according to claim 1, characterized in that: The lower end of the inner furnace body (2) is fixedly connected with the inner cavity bottom wall of the outer furnace body (1), and the lower end of the cast ingot (3) is movably connected with the inner cavity bottom wall of the inner furnace body (2).

3. The temperature measuring mechanism of a heating furnace according to claim 1, characterized in that: One side of the fixed seat (41) is fixedly connected with one side of the gas cylinder (42), and the telescopic end of the gas cylinder (42) is hinged to one end of the cross rod (43).

4. The temperature measuring mechanism of a heating furnace according to claim 3, characterized in that: The upper end of the shell (44) penetrates the bottom wall of the inner furnace body (2) and extends into the inner furnace body (2).

5. The temperature measuring mechanism of a heating furnace according to claim 1, characterized in that: The cooling mechanism (6) comprises a mounting seat (61), the lower end of the mounting seat (61) is fixedly connected with the upper end of the outer furnace body (1), the middle part of the mounting seat (61) is provided with a motor (62), the output shaft of the motor (62) is provided with a rotating rod (63), the lower end of the rotating rod (63) is fixedly connected with a fan (64), and the outer side wall of the fan (64) is embeddedly connected with a groove (65).

6. The temperature measuring mechanism of a heating furnace according to claim 5, characterized in that: The inner wall of the mounting seat (61) is detachably connected with the outer wall of the motor (62), and the output shaft of the motor (62) is in transmission connection with the upper end of the rotating rod (63).

7. The temperature measuring mechanism of a heating furnace according to claim 5, characterized in that: The output shaft of the motor (62) penetrates the outer furnace body (1) and is connected with the upper end of the rotating rod (63) through a key.

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