Zirconium oxide probe heater detection device

Abstract

The utility model relates to a detection device, in particular to a zirconia probe heater detection device. The device comprises a cabinet and electrical components installed on the cabinet, a switch is connected with a voltage stabilizer, the voltage stabilizer is connected with a primary winding of each transformer, a secondary winding of each transformer is electrically connected with a respective voltage regulating module, an ampere meter, a detected heating coil and a fuse in series in sequence, each voltage regulating module is connected with a potentiometer in parallel, and the potentiometer is electrically connected with a fuse. Each detected heating coil is electrically connected with one voltmeter in parallel, and the output ends of the ammeters and the voltmeters are connected with the conversion chip; the conversion chip is connected with the single-chip microcomputer, the single-chip microcomputer is connected with the touch screen, and the switching power supply is electrically connected with the voltage stabilizer, the single-chip microcomputer and The qualified heating coil detected by the detection device disclosed by the utility model is applied to the zirconium oxide probe, so that the stable and long-term service life of the zirconium oxide probe can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device especially zirconium oxide probe heater detection device. BACKGROUND

[0002] Zirconium oxide probe is composed of electrode, heater, thermocouple and other main components, and the quality of each component determines the long-term service life of zirconium oxide probe. At present, there are mature methods for the long-term service life of zirconium oxide electrode and thermocouple. There is no mature and reliable method for the rapid detection of the long-term service life of the heater on the zirconium oxide probe. How to rapidly detect the service life of the heater is particularly crucial. Each batch of our heater may have quality problems.

[0003] The traditional detection method generally detects the component proportion first, and then detects after a straight wire is connected with power supply. However, the number of turns, wire diameter and turn pitch of each heater directly affect the long-term service life of the zirconium oxide heater. The alloy heater wire of each batch is different, and may have the following defects: the alloy component does not meet the standard, the component error exceeds the quality requirement range; the alloy component is uneven, and contains impurity components, which are easy to break at impurity points; the wire diameter is uneven, and the heating power on each section is inconsistent.

[0004] In summary, under the condition that the structure of the zirconium oxide heater coil is unchanged, it is an urgent technical problem for those skilled in the art to research a device capable of rapidly detecting the service life of the zirconium oxide heater. No document is found by searching that discloses a device for rapidly detecting the service life of the zirconium oxide heater. SUMMARY

[0005] In order to solve the above technical problems, the utility model provides a zirconium oxide probe heater detection device, which aims to detect the heater coil before installation, and then install after detection, so as to ensure the stable long-term service life of the zirconium oxide probe.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The zirconium oxide probe heater detection device comprises a cabinet, and the cabinet is electrically connected with a switch, a voltage stabilizer, a transformer, a potentiometer, a voltage regulating module, an ammeter, a first fuse, a first voltmeter, a switching power supply, a single-chip microcomputer, a touch screen, a wiring terminal for connecting the detected heating coil and a conversion chip.

[0008] Preferably, the switch is connected with a voltage stabilizer, the voltage stabilizer is connected with the primary winding of each transformer, the secondary winding of each transformer is connected with the voltage regulating module, the ammeter, the detected heating coil and the fuse in sequence, a potentiometer is connected in parallel on each voltage regulating module, each detected heating coil is connected in parallel with a voltmeter, the output of each ammeter and voltmeter is connected with a conversion chip, the conversion chip is connected with a single-chip microcomputer, the single-chip microcomputer is connected with a touch screen, and the switch power supply is connected with the voltage stabilizer, the single-chip microcomputer and the touch screen.

[0009] Preferably, the single-chip microcomputer is ATMEGA8A-AU.

[0010] Preferably, the touch screen is TK8071IP.

[0011] Preferably, the conversion chip is RS485 conversion chip SP485EEN.

[0012] Preferably, the voltage stabilizer, the voltage regulating module, the ammeter, the detected heating coil and the fuse are four groups.

[0013] Due to the above technical scheme, the utility model has the advantages of the following:

[0014] The utility model discloses a simple structure, stable work, fast detection speed, through 100 hours of opening and closing heating, four groups of coils are not damaged and are detected qualified products, and the utility model discloses a detection device detects the heating coil of the qualified heater, is installed on the zirconium oxide probe, can guarantee the stable long-term service life of the zirconium oxide probe, avoids the quality problem of a large number of products caused by the unqualified quality of a batch of heating alloy wires, improves the quality of products, and solves the technical problem of shortening the service life of the whole zirconium oxide probe caused by the damage of the heater. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the utility model zirconium oxide probe heater detection device.

[0016] Figure 2 It is a circuit structure schematic diagram of the utility model zirconium oxide probe heater detection device.

[0017] Figure 3 It is a single-chip microcomputer and conversion chip connection structure schematic diagram of the utility model zirconium oxide probe heater detection device.

[0018] LEGEND:

[0019] 1. Switch; 2. Voltage regulator; 3. First transformer; 4. Second transformer; 5. Third transformer; 6. Fourth transformer; 7. First potentiometer; 8. Second potentiometer; 9. Third potentiometer; 10. Fourth potentiometer; 11. First voltage regulating module; 12. Second voltage regulating module; 13. Third voltage regulating module; 14. Fourth voltage regulating module; 15. First ammeter; 16. Second ammeter; 17. Third ammeter; 18. Fourth ammeter; 19. First fuse; 20. Second fuse; 21. Third fuse; 22. Fourth fuse; 23. First heating coil under test; 24. Second heating coil under test; 25. Third heating coil under test; 26. Fourth heating coil under test; 27. First voltmeter; 28. Second voltmeter; 29. ​​Third voltmeter; 30. Fourth voltmeter; 31. Switching power supply; 32. Microcontroller; 33. Touch screen; 35. Conversion chip; 36. Cabinet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 As shown, the zirconia probe heater detection device of this utility model has the following structure: the cabinet 36 is a box-shaped structure with dimensions of 800 cm * 600 cm * 1600 cm. The cabinet 36 can be designed in other structural forms, which cannot be used to limit the protection scope of this utility model. Switch 1, voltage regulator 2, first transformer 3, second transformer 4, third transformer 5, fourth transformer 6, first potentiometer 7, second potentiometer 8, third potentiometer 9, fourth potentiometer 10, first voltage regulating module 11, second voltage regulating module 12, third voltage regulating module 13, fourth voltage regulating module 14, first ammeter 15, second ammeter 16, third ammeter 17, fourth ammeter 18, first fuse 19, second fuse 20, third fuse 21, fourth fuse 22, first voltmeter 27, second voltmeter 28, third voltmeter 29, fourth voltmeter 30, switching power supply 31, microcontroller 32, touch screen 33, wiring terminals for connecting each tested heating coil, and conversion chip 35 are electrically connected and installed on the cabinet 36.

[0022] like Figure 2As shown, the switch 1 is connected with the voltage stabilizer 2, the voltage stabilizer 2 is connected with the primary winding of the first transformer 3, the second transformer 4, the third transformer 5 and the fourth transformer 6, the secondary winding of the first transformer 3 is connected with the first voltage regulating module 11, the first ammeter 15, the first detected heating coil 23 and the first fuse 19 in series, the first potentiometer 7 is connected with the first voltage regulating module 11 in parallel, the first detected heating coil 23 is connected with the first voltmeter 27 in parallel, the output of the first ammeter 15 and the first voltmeter 27 is connected with the conversion chip 35; the secondary winding of the second transformer 4 is connected with the second voltage regulating module 12, the second ammeter 16, the second detected heating coil 24 and the second fuse 20 in series, the second potentiometer 8 is connected with the first voltage regulating module 12 in parallel, the second detected heating coil 24 is connected with the second voltmeter 28 in parallel, the output of the second ammeter 16 and the second voltmeter 28 is connected with the conversion chip 35; the secondary winding of the third transformer 5 is connected with the third voltage regulating module 13, the third ammeter 17, the third detected heating coil 25 and the third fuse 21 in series, the third potentiometer 9 is connected with the third voltage regulating module 13 in parallel, the third detected heating coil 25 is connected with the third voltmeter 29 in parallel, the output of the third ammeter 17 and the third voltmeter 29 is connected with the conversion chip 35; the secondary winding of the fourth transformer 6 is connected with the fourth voltage regulating module 14, the fourth ammeter 18, the fourth detected heating coil 26 and the fourth fuse 22 in series, the fourth potentiometer 10 is connected with the fourth voltage regulating module 14 in parallel, the fourth detected heating coil 26 is connected with the fourth voltmeter 30 in parallel, the output of the fourth ammeter 18 and the fourth voltmeter 30 is connected with the conversion chip 35. The conversion chip 35 is connected with the single-chip microcomputer 32, the single-chip microcomputer 32 is connected with the touch screen 33, the switch power supply 31 is connected with the voltage stabilizer 2, the single-chip microcomputer 32 and the touch screen 33. The embodiment only designs the detection equipment for detecting four groups of detected heating coils at the same time, and the detection equipment with increased or decreased number of detection groups can also be designed according to the specific circumstances based on the principle of the utility model, which cannot be used to limit the protection scope of the utility model.

[0023] The utility model discloses zirconium oxide probe heater detection device, switch 1 adopts 15A switch, stabilizer 2 adopts JJW -3000VA stabilizer, first transformer 3, second transformer 4, third transformer 5 and fourth transformer 6 are all 220 / 36:NDK -500VA transformer, first potentiometer 7, second potentiometer 8, third potentiometer 9 and fourth potentiometer 10 adopt WXD3 -12 -2W22 potentiometer, first voltage regulating module 11, second voltage regulating module 12, third voltage regulating module 13, fourth voltage regulating module 14 adopt ZMTY30 voltage regulating module, first ammeter 15, second ammeter 16, third ammeter 17, fourth ammeter 18 adopt YK -AMP07M10AT ammeter, first fuse 19, second fuse 20, third fuse 21, fourth fuse 22 are 10A fuse, first voltmeter 27, second voltmeter 28, third voltmeter 29, fourth voltmeter 30 adopt KV -DVM100VT voltmeter, switch power supply 31 adopts EDR -75 -25 -5 switch power supply, singlechip 32 adopts ATMEGA8A -AU singlechip, touch screen 33 adopts TK8071IP touch screen, when detecting, the optical thermometer used with the utility model detection equipment adopts WGG2 -201 optical thermometer, and conversion chip 35 adopts RS485 conversion chip SP485EEN.

[0024] As Figure 3 The (1) pin of the conversion chip 35 is RSD, the (1) pin of the conversion chip 35 is connected with the (1) pin of the singlechip, the (2) and (3) pins of the conversion chip 35 are EN, the (2) and (3) pins of the conversion chip 35 are connected with the (6) pin of the singlechip 32 in parallel, the (4) pin of the conversion chip 35 is RTSD, the (4) pin of the conversion chip 35 is connected with the (3) pin of the singlechip 32, the (2) pin of the singlechip 32 receives RXD, the (3) pin of the singlechip 32 sends TXD, and the (28) pin of the singlechip 32 is a communication port connected with the touch screen 33.

[0025] The working principle and detection method of the utility model are as follows:

[0026] The alloy wires of the same batch for the zirconium oxide probe heater are sampled to 4 segments of 350mm in length, are wound into short coils with the same turn diameter as the zirconium oxide heater, have 30 turns, and are made into the detected heating coils. The detected heating coils are pressed on the respective terminal posts 34.

[0027] The switch 1 controls the power supply to start working, and supplies power to the voltage stabilizer 2, and the voltage stabilizer 2 supplies power to each transformer and switch power supply 31 while outputting stable 220V A.C power. The secondary output of each transformer outputs 36V A.C power, and is connected with each detected heating coil. Through the adjustment of each potentiometer, each voltage regulating control module outputs voltage (9-10V A.C) and current (4.5-5A). The optical thermometer is used in cooperation with the device of the utility model, and is a commercially available product, and the model of the optical thermometer is WGG2-201. In the case that the coil is powered, the surface temperature of the detected heating coil of the heater is between 900-920 DEG C. The voltage and current are transmitted to the conversion chip 35 through each ammeter and voltmeter, are processed by the single-chip microcomputer 32, and are displayed by the touch screen 33. Each detection line is provided with a fuse.

[0028] The switch power supply 31 provides 5V A.CD power supply for the conversion chip 35 and the single-chip microcomputer 32, and provides 24A.CD power supply for the touch screen 33. The on-off time (interval 2 minutes) of the voltage regulating control module is set by the communication control end touch screen 33. The voltage and current signals are processed by the conversion chip 35 and the single-chip microcomputer 32, and a continuous pulse curve is generated on the touch screen, so as to record the detection process.

[0029] During the whole detection process, 100 hours are needed, and the four detection samples are not damaged within 100 hours, and the alloy wire for the zirconia probe heater in this batch is a qualified product. It can ensure that the zirconia probe can work continuously for more than 3 years under the condition of no other damage.

[0030] The qualified heater detected by the detection device of the utility model is used on the zirconia probe, can ensure the stable long-term working life of the zirconia probe, avoids the quality problems of a large number of products caused by unqualified quality of a batch of heating alloy wires, improves the quality of products, and solves the technical problem that the service life of the whole zirconia probe is shortened due to the damage of the heater.

Claims

1. A zirconia probe heater detection device comprising a cabinet (36), characterized in that: The switch (1), the voltage stabilizer (2), the transformer, the potentiometer, the voltage regulating module, the ammeter, the first fuse, the first voltmeter, the switching power supply (31), the single-chip microcomputer (32), the touch screen (33), the terminal for connecting the detected heating coil and the conversion chip (35) are electrically connected on the cabinet (36); the switch (1) is connected with the voltage stabilizer (2), the voltage stabilizer (2) is connected with the primary winding of each transformer, the secondary winding of each transformer is connected with the voltage regulating module, the ammeter, the detected heating coil and the fuse in sequence, one potentiometer is connected in parallel on each voltage regulating module, each detected heating coil is connected in parallel with one voltmeter, the output of each ammeter and voltmeter is connected with the conversion chip (35); the conversion chip (35) is connected with the single-chip microcomputer (32), the single-chip microcomputer (32) is connected with the touch screen (33), and the switching power supply (31) is electrically connected with the voltage stabilizer (2), the single-chip microcomputer (32) and the touch screen (33).

2. The zirconia probe heater detection device of claim 1, wherein The single-chip microcomputer (32) is an ATMEGA8A-AU single-chip microcomputer.

3. The zirconia probe heater detection apparatus of claim 1, wherein The touch screen (33) is a TK8071IP touch screen.

4. The zirconia probe heater detection apparatus of claim 1, wherein The conversion chip (35) is an RS485 conversion chip SP485EEN.

5. The zirconia probe heater detection apparatus of claim 1, wherein The voltage stabilizer (2), the voltage regulating module, the ammeter, the detected heating coil and the fuse are four groups.

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