CN215767925U - COD clears up appearance temperature calibrating device - Google Patents
COD clears up appearance temperature calibrating device Download PDFInfo
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- CN215767925U CN215767925U CN202120004350.0U CN202120004350U CN215767925U CN 215767925 U CN215767925 U CN 215767925U CN 202120004350 U CN202120004350 U CN 202120004350U CN 215767925 U CN215767925 U CN 215767925U
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Abstract
The utility model relates to a temperature calibration device of a COD digestion instrument, which comprises a test base, at least one group of flexible thermocouple films, a compensation lead group, a temperature data recording and transmitting device and a cloud server, wherein the test base is provided with a test base; wherein, flexible thermocouple film adopts connection piece and socket to be connected with the test base, adopts electrical connection between compensation wire group and temperature data record emitter, adopts wireless internet networking transmission between temperature data record emitter and high in the clouds server. The utility model also discloses a COD digestion instrument temperature calibration test method. The temperature measurement element is more attached to the surface of the heating metal block of the COD digestion instrument, the Internet + technology is adopted, the mode that an original engineer needs to detect on site is changed, measurement parameters can be set in real time through the mobile terminal, the measurement process can be observed in real time, and the wide application prospect is achieved.
Description
Technical Field
The utility model belongs to the field of temperature calibration of a COD digestion instrument, and relates to a temperature calibration device of the COD digestion instrument.
Background
With the increasingly prominent demand for portability and miniaturization of devices, the demand for temperature detection and calibration of flexible small spaces is also increasing. In the medical field, the COD digestion instrument replaces the traditional water bath heating mode and is used in a plurality of fields such as enzyme preparation reaction, serum inactivation test, Rb blood sample research, cholesterol detection and the like; the COD digestion instrument can be used for quantitatively detecting the chemical oxygen demand in the field of environmental monitoring, and has wide application value. And the temperature detection of the COD digestion instrument needs to carry out temperature calibration on the circular metal constant temperature block within a small gap range. At present, for flexible surface or space temperature measurement, a thermocouple wire or a surface-pasted thermocouple patch is generally adopted for testing, and certain errors exist in results. For the measured object that needs closely laminating such as COD to clear up the appearance, thermocouple wire outside is with the insulating layer protection, and the silk footpath is more than 1mm, can't guarantee to clear up the appearance with being surveyed COD and laminate completely, arouses measuring error easily. The existing surface-adhered thermocouple solidifies the original thermocouple wire into a thermocouple patch, and the thermocouple patch in the temperature measurement area has a certain thickness and cannot be completely adhered to the surface of a measured object, so that the error of a test result can be caused, and the response speed is not ideal. In addition, due to the introduction of the adhesive, the thermocouple cannot be used repeatedly, easily pollutes the measured object, and cannot be used for the measured object made of a flexible material, so that a temperature calibration device of the COD digestion instrument needs to be developed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical defects, the utility model provides the following technical scheme: a COD digestion instrument temperature calibration device and a test method thereof, and a flexible thermocouple film structure and a preparation method thereof are provided.
A temperature calibration device for a COD digestion instrument comprises a test base, at least one group of flexible thermocouple films, a compensation lead group, a temperature data recording and transmitting device and a cloud server;
wherein, flexible thermocouple film adopts connection piece and socket to be connected with the test base, adopts electrical connection between compensation wire group and temperature data record emitter, adopts wireless internet networking transmission between temperature data record emitter and high in the clouds server.
The test base comprises a base, a sliding connecting rod, at least one group of flexible thermocouple film connectors, a transverse sliding connecting rod, a scaling plate, a pressing plate support, a pressing plate, a compensation lead group and a data transmission connecting interface; the test base is made of an insulating non-metallic material.
The sliding connecting rod, the fixed scale, the compensation lead group and the data transmission connecting interface are fixed on the base;
the base is made of a silicon plate;
the sliding connecting rods, namely the anode sliding connecting rod and the cathode sliding connecting rod, are all made of universal thermocouple materials; one end of the anode sliding connecting rod and one end of the cathode sliding connecting rod are connected with the transverse sliding connecting rod through tracks, and the other ends of the anode sliding connecting rod and the cathode sliding connecting rod are electrically connected with the compensation lead group and the data transmission connecting interface. The sliding connecting rod is connected with the transverse sliding connecting rod and can slide on the sliding connecting rod, and the positions of the sliding connecting rod and the transverse sliding connecting rod can be automatically or manually adjusted according to the aperture position and the number of the COD digestion instruments to be measured; the anode sliding connecting rod is connected with the compensation lead group and the data transmission connecting interface through a thermocouple anode connecting line group; the cathode sliding connecting rod is connected with the compensation lead group and the data transmission connecting interface through the thermocouple cathode connecting line group.
The flexible thermocouple thin film connector is made of an insulating non-metal material and is made of a silicon plate, the flexible thermocouple thin film connector is connected with the transverse sliding connecting rod through a rail and can slide on the transverse sliding connecting rod, the flexible thermocouple thin film connector is in threaded connection with the pressing sheet supporting column and is connected with the flexible thermocouple thin film in a socket and connecting piece mode. According to the size of the COD digestion instrument to be measured and the testing requirement of the position of the heating hole, the number and the position of the film connected with the flexible thermocouple are determined, and the position data measured by the fixed scale is transmitted and recorded in the temperature data recording and transmitting device through the compensation lead group and the data transmission connecting interface.
The equipment for testing the size of the COD digestion instrument to be tested and the position of the heating hole determines the number and the position of the films connected with the flexible thermocouples, and specifically comprises the following steps:
1) when the number of the test holes of the COD digestion instrument is less than or equal to 4 x 4, a flexible thermocouple film is preferably arranged at the position of the central test hole;
2) when the number of the unilateral test holes of the COD digestion instrument is more than 4, respectively arranging a flexible thermocouple film on the test holes at the two ends of the side;
3) when the number of the test holes on both sides of the COD digestion instrument is more than 4, a flexible thermocouple film is additionally arranged on the test holes on four sides.
Each flexible thermocouple film connector corresponds to a group of anode connecting wires and cathode connecting wires, at least one group of anode connecting wires and at least one group of cathode connecting wires are contained in each transverse sliding connecting rod, and the flexible thermocouple film connectors are connected with the compensation lead groups and the data transmission connecting interfaces through the sliding connecting rods and the transverse sliding connecting rods. One end of the anode connecting wire is connected with the flexible thermocouple film anode connecting sheet by adopting a socket and a connecting sheet, and the other end of the anode connecting wire is connected with the anode sliding connecting rod by adopting a track. One end of the cathode connecting wire is connected with the flexible thermocouple film cathode connecting sheet by adopting a socket and a connecting sheet, and the other end of the cathode connecting wire is connected with the cathode sliding connecting rod by adopting a track. The anode sliding connecting rod, the thermocouple anode connecting wire group and the anode connecting wire are made of the same thermocouple universal anode material. The cathode sliding connecting rod, the thermocouple cathode connecting wire group and the cathode connecting wire are made of the same thermocouple universal cathode material. The number of the anode connecting wires, the number of the cathode connecting wires and the number of the flexible thermocouple thin film connectors are kept consistent.
The position data measured by the fixed scale is transmitted and recorded in the temperature data recording and transmitting device through the compensation lead group and the data transmission connecting interface;
the tabletting is made of an aluminum sheet with high heat resistance and plasticity and is used for fully contacting the temperature measuring area of the flexible thermocouple film with the heating hole of the COD digestion instrument to be measured.
The temperature measuring area refers to the overlapping part of the flexible thermocouple anode and the flexible thermocouple cathode.
The pressing sheet support post is provided with threads, is made of stainless steel materials and is used for being connected with the flexible thermocouple film connector, the length of the pressing sheet and the length of the pressing sheet support post can be adjusted, and the pressing sheet support post and the pressing sheet are connected through fasteners.
Alternatively, the test base 1 may have the following structure:
the device comprises a base, a plurality of groups of flexible thermocouple film connecting jacks, a fixer, a fixing hole, a fixed scale, a pressing sheet supporting column, a compensation wire group and a data transmission connecting interface. The test base 1 is made of non-metallic insulating material. The plurality of groups of flexible thermocouple film connecting jacks, the fixing holes, the fixed scale, the compensation lead group and the data transmission connecting interface are fixed on the base. According to the size of the COD digestion instrument to be measured and the testing requirement of the position of the heating hole, the number and the position of the film connected with the flexible thermocouple are determined, and the position data measured by the fixed scale is transmitted and recorded in the temperature data recording and transmitting device through the compensation lead group and the data transmission connecting interface. The tabletting is used for fully contacting the temperature measuring area of the flexible thermocouple film with the heating hole of the measured COD digestion instrument. The pressing sheet support is provided with threads for connecting a fixer and adjusting the length of the pressing sheet support and the pressing sheet, and the pressing sheet support are connected by a fastener.
The flexible thermocouple film comprises a flexible substrate, a flexible insulating layer, a flexible thermocouple anode, a flexible thermocouple cathode, a protective layer, an anode connecting sheet, a cathode connecting sheet and a connecting sheet fixing member.
The flexible substrate is made of a flexible high-temperature-resistant metal material with high heat conduction speed, the flexible insulating layer is made of a high-temperature-resistant insulating material, the flexible thermocouple anode and the flexible thermocouple cathode are made of universal thermocouple electrode materials, and the anode connecting piece is made of the same material as the flexible thermocouple anode and the cathode connecting piece is made of the same material as the flexible thermocouple cathode. And no other material is introduced in the connection process, so that the error of temperature measurement is avoided, and the protective layer is made of a high-temperature-resistant insulating material. The connecting sheet fixing part is made of an insulating non-metallic material.
The flexible insulating layer is attached to the surface of the flexible substrate by adopting a screen printing method, a spraying method and a plasma sputtering method.
The flexible thermocouple anode and the flexible thermocouple cathode are prepared on the flexible insulating layer by adopting a plasma sputtering method and a screen printing method, the flexible thermocouple anode and the flexible thermocouple cathode are sequentially prepared, the flexible thermocouple anode and the flexible thermocouple cathode are partially overlapped, and the overlapped part is a thermal connection area of a flexible thermocouple film, namely a temperature measurement area;
the protective layer is prepared by a plasma method, a screen printing method and a spraying method, covers the flexible thermocouple anode and the flexible thermocouple cathode, and exposes the heat connecting area.
Connecting sheets are connected to two sides of the flexible thermocouple film, namely, the anode of the flexible thermocouple is connected with the anode connecting sheet, and the cathode of the flexible thermocouple is connected with the cathode connecting sheet and is fixedly connected with the cathode connecting sheet through the connecting sheet fixing piece.
The compensation lead group comprises a group of compensation leads and two compensation lead interfaces, the anode of each compensation lead is made of the same material as the anode of the flexible thermocouple, the cathode of each compensation lead is made of the same material as the cathode of the flexible thermocouple, and the anode of the flexible thermocouple and the cathode of the flexible thermocouple are made of universal thermocouple electrode materials. One end of the compensating lead group is electrically connected with the test base, and the other end of the compensating lead group is electrically connected with the temperature data recording and transmitting device.
The temperature data recording and transmitting device comprises: the temperature and humidity sensor comprises a compensation lead group interface, a temperature and humidity probe, a signal transceiving module and a data processing and storing module. The temperature data recording and transmitting device has the data processing and storing functions and the signal receiving and transmitting functions, and the temperature data recording and transmitting device internally comprises a temperature and humidity probe, so that the environmental temperature and humidity data can be recorded, and meanwhile, the temperature data of each flexible thermocouple film can be compared. The number of the temperature measuring channels of the flexible thermocouple film can be started according to the size of the COD digestion instrument, a temperature measuring distribution point position diagram is generated, and data of each temperature measuring channel is recorded. All relevant data are recorded in the data processing and storing module and are sent to the cloud server for recording and storing.
The cloud server comprises a user authentication module, a control module, a storage module and a report generation module, and is operated through software. Through high in the clouds server, the detection engineer can set up measurement parameter, survey measurement process in real time through mobile terminal according to the detection demand.
The temperature data recording and transmitting device and the cloud server can also be replaced by a temperature data recorder, so that the data can be observed and recorded on site in real time. The compensation lead group is directly connected to a temperature data recorder, and the real-time temperature of each flexible thermocouple film is observed and recorded through the temperature data recorder, but the system self-checking and remote observation functions cannot be realized.
The utility model also discloses a COD digestion instrument temperature calibration test method, which comprises the following steps:
1. checking whether the temperature calibration device of the COD digestion instrument works normally, and generally electrifying and preheating for 30 minutes.
2. Connecting: a flexible thermocouple film of the COD digestion instrument temperature calibration device is fixedly connected with a test base, and is connected with a compensation lead group and a temperature data recording and transmitting device.
3. System self-checking: and detecting the temperature data of the flexible thermocouple films of the channels, comparing the temperature data with the temperature data in the temperature data recording and transmitting device 4, and recording the temperature data, wherein when the deviation exceeds +/-0.3 ℃, the mobile terminal of the detection engineer receives the warning of the abnormality of the sensor.
4. Arranging a flexible thermocouple film: attaching the flexible thermocouple film to the test holes of the COD digestion instrument to be calibrated, and when the number of the test holes of the COD digestion instrument is less than or equal to 4 x 4, arranging the flexible thermocouple film at the position of the central test hole; when the number of the unilateral test holes of the COD digestion instrument is more than 4, respectively arranging a flexible thermocouple film on the test holes at the two ends of the side; when the number of the test holes on both sides of the COD digestion instrument is more than 4, a flexible thermocouple film is additionally arranged on the test holes on four sides. Through the tabletting of the test base, the temperature measuring area of the flexible thermocouple film is fully contacted with the heating hole of the measured COD digestion instrument. And automatically/manually adjusting the positions of the flexible thermocouple film connector and the transverse sliding connecting rod according to the number and the positions of the test holes of the COD digestion instrument to be measured.
5. Data acquisition: the temperature data recording and transmitting device of the COD digestion instrument temperature calibration device is started to be connected with the cloud server, and a detection engineer sets a data sampling interval (time interval of sampling every 2 times) through the cloud. And after the measured COD digestion instrument reaches the set temperature for 30 minutes, starting data sampling, recording the temperature data of each flexible thermocouple film, and calculating the data such as the temperature average value, the temperature deviation, the temperature uniformity, the temperature fluctuation degree and the like of the measured data of each flexible thermocouple film through a cloud server. And recording the position relation and the distance between the flexible thermocouple films during testing through a fixed scale of the testing base.
6. Data export: and after the recording is finished, closing data sampling through the cloud server, and then generating a calibration report according to the requirement.
7. System rechecking: and detecting the temperature data of the flexible thermocouple films of the channels again, comparing the temperature data with the temperature data in the temperature data recording and transmitting device, and recording, wherein when the temperature deviation exceeds +/-0.3 ℃, the mobile terminal of the detection engineer receives the prompt of the abnormity of the sensor. Ensure that the calibration device works normally before and after the calibration of the COD digestion instrument and the data is reliable.
8. And (3) completing the test: and (4) closing the temperature calibration device of the COD digestion instrument, and taking out the arranged flexible thermocouple film after the temperature of the COD digestion instrument is restored to the room temperature to complete the test.
The utility model has the beneficial effects that: the temperature measuring element is more attached to the surface of the heating metal block of the COD digestion instrument. The connecting rod is adopted, the positions of the flexible thermocouple film and the fixed pressing sheet can be adjusted according to COD digestion instruments with different sizes and specifications, and the compatibility is strong. The flexible thermocouple film adopts a metal substrate, a flexible insulating layer, a thermocouple anode, a thermocouple cathode and a protective layer structure; the metal substrate ensures flexibility, ensures good heat conductivity and improves the temperature response speed of the temperature calibration device of the COD digestion instrument; the protective layer exposes out of the heat connecting area, so that the anode and the cathode of the thermocouple are protected, and simultaneously, the low error and the high sensitivity of the temperature measuring area are ensured. By adopting the Internet + technology, the mode that an original engineer needs to perform field detection is changed, the measurement parameters can be set in real time through the mobile terminal, the measurement process can be observed in real time, and the method has wide application prospect.
Drawings
FIG. 1 is a schematic structural diagram of a COD digestion instrument calibration device of the present invention.
FIG. 2 is a schematic view of a test base of the present invention.
FIG. 3 is a schematic diagram of the connection of the sliding connecting rod of the test base, the transverse sliding connecting rod (9), the compensating wire set and the data transmission connection interface according to the present invention.
FIG. 4 is a schematic view of a test base holding wafer of the present invention.
FIG. 5 is a schematic view of the flexible thermocouple film structure of the present invention.
Fig. 6 is a schematic diagram of a compensating lead set structure according to the present invention.
Fig. 7 is a schematic structural diagram of a temperature data recording and transmitting device of the utility model.
FIG. 8 is a flow chart of a testing method of the present invention.
Fig. 9 is a schematic diagram of the flexible thermocouple membrane layout of the COD digestion apparatus (3 x 5 wells) of the present invention.
FIG. 10 is a schematic structural diagram of a test base of the present invention.
Figure 11 is a schematic view of a fixed wafer in a test base of the present invention.
In fig. 1-11: 1-a test base, 2-a flexible thermocouple film, 3-a compensation lead group, 4-a temperature data recording and transmitting device, 5-a cloud server, 6-a base, 7-a sliding connecting rod, 8-a flexible thermocouple film connector, 9-a transverse sliding connecting rod, 10-a scaling scale, 11-a tabletting support, 12-a tabletting, 13-a compensation lead group and data transmission connecting interface, 14-a flexible substrate, 15-a flexible insulating layer, 16-a flexible thermocouple anode, 17-a flexible thermocouple cathode, 18-a protective layer, 19-an anode connecting sheet, 20-a cathode connecting sheet, 21-a connecting sheet fixing piece, 22-a compensation lead, 23-a compensation lead interface and 24-a compensation lead group interface, 25-temperature and humidity probe, 26-signal receiving and transmitting module, 27-temperature data processing and storing module, 28-anode sliding connecting rod, 29-cathode sliding connecting rod, 30-thermocouple anode connecting wire group, 31-thermocouple cathode connecting wire group, 32-anode connecting wire, 33-cathode connecting wire, 34-flexible thermocouple film connecting socket, 35-fixer and 36-fixing hole.
Detailed Description
The present invention will be described in further detail with reference to the following specific examples and the accompanying drawings. The procedures, conditions, experimental methods and the like for carrying out the present invention are general knowledge and common general knowledge in the art except for the contents specifically mentioned below, and the present invention is not particularly limited.
Examples
A temperature calibration device of a COD digestion instrument comprises a test base 1, at least one group of flexible thermocouple films 2, a compensation lead group 3, a temperature data recording and transmitting device 4 and a cloud server 5;
wherein, flexible thermocouple film 2 adopts connection piece and socket connection with test base 1, adopts electrical connection between compensation wire group 3 and temperature data record emitter 4, and temperature and humidity probe 25 adopts electrical connection with temperature data record emitter 4, adopts wireless internet networking transmission between temperature data record emitter 4 and high in the clouds server 5.
The test base 1 comprises a base 6, a sliding connecting rod 7, at least one group of flexible thermocouple film connectors 8, a transverse sliding connecting rod 9, a scaling rule 10, a pressing sheet support 11, a pressing sheet 12, a compensation lead group and a data transmission connecting interface 13; the base 6 is made of a silicon plate; the sliding connecting rod 7 is divided into an anode sliding connecting rod 28 and a cathode sliding connecting rod 29 and is made of a universal thermocouple material; the positive pole of the compensation lead group 3 is made of a copper material, the negative pole is made of a universal thermocouple material, each flexible thermocouple film connector 8 corresponds to one group of positive pole connecting wires 32 and negative pole connecting wires 33, each transverse sliding connecting rod 9 internally comprises at least one group of positive pole connecting wires 32 and negative pole connecting wires 33, and the transverse sliding connecting rods 7 and 9 are connected with the compensation lead group and the data transmission connecting interface 13. One ends of the anode sliding connecting rod 28 and the cathode sliding connecting rod 29 are connected with the transverse sliding connecting rod 9 by adopting a track, and the other ends are electrically connected with the compensation lead group and the data transmission connecting interface 13. The flexible thermocouple thin film connector 8 is connected with the transverse sliding connecting rod 9 through a track, the flexible thermocouple thin film connector 8 is made of a silicon plate, the flexible thermocouple thin film connector 8 is in threaded connection with the pressing sheet supporting column 11, the top end of the pressing sheet supporting column 11 is made of an aluminum sheet with high heat resistance and plasticity, and the pressing sheet 12 is made of a stainless steel material. The flexible thermocouple thin film connector 8 is connected with the flexible thermocouple thin film 2 in a socket and connecting piece mode. According to the size of the COD digestion instrument to be measured and the testing requirement of the position of the heating hole, the number and the position of the flexible thermocouple films 2 are determined, and the position data measured by the fixed scale 10 are transmitted and recorded in the temperature data recording and transmitting device 4 through the compensation lead group and the data transmission connecting interface 13. The tabletting support 11 is used to bring the temperature measurement region of the flexible thermocouple film 2 into full contact with the heating hole of the COD digestion apparatus to be measured. The pressing sheet support post 11 is provided with threads for connecting the fixer 8, the length of the pressing sheet 12 and the pressing sheet support post 11 can be adjusted, and the pressing sheet support post 11 and the pressing sheet 12 are connected by a fastener.
The sliding connecting rod 7 is divided into an anode sliding connecting rod 28 and a cathode sliding connecting rod 29, and the anode sliding connecting rod 28 is connected with the compensation lead group and the data transmission connecting interface 13 through a thermocouple anode connecting line group 30; the cathode slide connecting rod 29 is connected to the compensation wire group and the data transmission connecting interface 13 through a thermocouple cathode connecting wire group 31. Each transverse sliding bar 9 comprises at least one set of anode connecting wires 32 and cathode connecting wires 33. One end of the anode connecting wire 32 is connected with the flexible thermocouple film anode connecting sheet 19 by adopting a jack and a connecting sheet, and the other end is connected with the anode sliding connecting rod 28 by adopting a track. One end of the cathode connecting wire 33 is connected with the cathode connecting piece 20 pole of the flexible thermocouple film by adopting a jack and a connecting piece, and the other end is connected with the cathode sliding connecting rod 29 by adopting a track. The anode slide connecting rod 28, the thermocouple anode connecting wire group 30 and the anode connecting wire 32 are made of copper. The cathode sliding connecting rod 29, the thermocouple cathode connecting wire group 31 and the cathode connecting wire 33 are made of constantan. Each group of transverse sliding connecting rods is provided with 3 anode connecting wires 32, 3 cathode connecting wires 33 and 3 flexible thermocouple thin film connectors 8, and the total number of the transverse sliding connecting rods 9 is 3.
The method comprises the following steps of determining the number and the positions of the films connected with the flexible thermocouples according to the size of a COD digestion instrument to be tested and the position test of a heating hole, and specifically comprises the following three conditions:
1) when the number of the test holes of the COD digestion instrument is less than or equal to 4 x 4, a flexible thermocouple film is preferably arranged at the position of the central test hole;
2) when the number of the unilateral test holes of the COD digestion instrument is more than 4, respectively arranging a flexible thermocouple film on the test holes at the two ends of the side;
3) when the number of the test holes on both sides of the COD digestion instrument is more than 4, a flexible thermocouple film is additionally arranged on the test holes on four sides.
The test base 1 may also be:
the device comprises a base 6, a plurality of groups of flexible thermocouple film connecting sockets 34, a fixer 35, a fixing hole 36, a scaling rule 10, a pressing sheet 11, a pressing sheet support 12, a compensation wire group and a data transmission connecting interface 13. The test base is made of an insulating non-metallic material. The base 6 adopts the silicon plate preparation, and flexible thermocouple connection socket 34 positive pole adopts the copper product, and the negative pole adopts the constantan material, and fixer 35 adopts insulating screw, and fixed orifices 36 size is 1mm 3mm, and preforming 12 adopts the aluminum sheet preparation that heat-resisting plasticity is strong, and preforming 11 adopts stainless steel material. According to actual needs, 5-by-5 groups of flexible thermocouple film connecting sockets 34 are arranged, and the distance between each group is 20 mm. The flexible thermocouple film connecting socket 34, the fixing hole 36, the scaling rule 10, the compensation lead group and the data transmission connecting interface 13 are fixed on the base 6. According to the size of the COD digestion instrument to be measured and the testing requirement of the position of the heating hole, the number and the position of the flexible thermocouple films 2 are determined, and the position data measured by the fixed scale 10 are transmitted and recorded in the temperature data recording and transmitting device 4 through the compensation lead group and the data transmission connecting interface 13. The pressing sheet 12 is used for fully contacting the flexible thermocouple film 2 with the heating hole of the COD digestion instrument to be tested. The pressing sheet support post 11 is provided with threads for connecting the fixing device 35, the length of the pressing sheet support post 11 and the length of the pressing sheet 12 can be adjusted, and the pressing sheet 12 and the pressing sheet support post 11 are connected through a fastening piece.
The flexible thermocouple film 2 includes a flexible substrate 14, a flexible insulating layer 15, a flexible thermocouple anode 16, a flexible thermocouple cathode 17, a protective layer 18, an anode connection tab 19, a cathode connection tab 20, and a connection tab fixing member 21.
The flexible substrate 14 is made of an aluminum sheet, the flexible insulating layer 15 is made of a polyimide material, the flexible thermocouple anode 16 is made of copper, the flexible thermocouple cathode 17 is made of constantan material, and the flexible insulating layer 15 is arranged on the surface of the flexible substrate 14 by a screen printing method.
The flexible thermocouple anode 16 and the flexible thermocouple cathode 17 are prepared on the flexible insulating layer 15 by adopting a plasma sputtering method, the flexible thermocouple anode 16 and the flexible thermocouple cathode 17 are prepared in sequence, the flexible thermocouple anode 16 and the flexible thermocouple cathode 17 are partially overlapped, and the overlapped part is a thermal connection area of the flexible thermocouple, namely a temperature measurement area;
the plasma sputtering preparation conditions of the flexible thermocouple film 2 were determined as follows: 1) copper-nickel alloy (constantan) film: under the argon atmosphere of 1Pa, adopting 150W direct current to sputter for 40 minutes to obtain a metal film layer with the thickness of (900-; 2) copper film formation: under the argon atmosphere of 1Pa, the metal film layer with the film thickness of 1000nm is obtained by adopting 90W direct current sputtering for 40 minutes.
The protective layer 18 is made of polyimide material by a spraying method, covers the flexible thermocouple anode 16 and the flexible thermocouple cathode 17, and exposes a thermal connection area.
Connecting pieces are connected to two sides of the flexible thermocouple film 2, the anode connecting piece 19 is made of copper, and the cathode connecting piece 20 is made of constantan. And no other material is introduced in the connection process, so that the error of temperature measurement is avoided.
The connection tabs 19, 20 are connected to the flexible thermocouple membrane 2 using fasteners.
The compensation lead group 3 comprises a compensation lead 22 and two compensation lead interfaces 23, wherein the anode of the compensation lead is made of copper, and the cathode of the compensation lead is made of constantan. One end of the compensating lead group 3 is electrically connected with the test base 1, and the other end is electrically connected with the temperature data recording and transmitting device 4.
The temperature data recording and transmitting device 4 includes: the device comprises a compensating lead group interface 24, a temperature and humidity probe 25, a signal transceiving module 26 and a data processing and storing module 27. The temperature data recording and transmitting device 4 has a data processing and storing function and a signal receiving and transmitting function, and a temperature and humidity probe 25 is arranged inside the temperature data recording and transmitting device 4, so that environmental temperature and humidity data can be recorded, and meanwhile, the temperature data of the flexible thermocouple films 2 can be compared. The number of the temperature measuring channels of the flexible thermocouple film can be started according to the size of the COD digestion instrument, a temperature measuring distribution point position diagram is generated, and data of each temperature measuring channel is recorded. All relevant data are recorded in the data processing and storing module 27 and sent to the cloud server 5 for recording and saving.
Through high in the clouds server 5, the detection engineer can set up measurement parameter, survey measurement process in real time through mobile terminal according to the detection demand. The cloud server 5 comprises a user authentication module, a control module, a storage module and a report generation module which are connected by software.
If calibrating a 3 x 5-pore COD digestion instrument, the specific steps are as follows: 1. checking whether the temperature calibration device of the COD digestion instrument works normally, and generally electrifying and preheating for 30 minutes. 2. Connecting: a flexible thermocouple film 2 of the COD digestion instrument temperature calibration device is fixedly connected with a test base 1 and is connected with a compensation lead group 3. 3. System self-checking: and detecting the temperature data of the flexible thermocouple films 2 of all the channels, comparing the temperature data with the temperature data in the temperature data recording and transmitting device 4, and recording the temperature data, wherein when the deviation exceeds +/-0.3 ℃, the mobile terminal of the detection engineer receives the warning of the abnormality of the sensor. 4. Positioning of the flexible thermocouple film 2: attaching the flexible thermocouple film 2 to test holes of a COD digestion instrument to be calibrated, and when the number of the test holes of the COD digestion instrument is less than or equal to 4 x 4, preferably arranging the flexible thermocouple film 2 at the position of the central test hole; when the number of the unilateral test holes of the COD digestion instrument is more than 4, the flexible thermocouple films 2 are additionally arranged on the test holes at the two ends of the side; when the number of the test holes on both sides of the COD digestion instrument is more than 4, the flexible thermocouple thin films 2 are additionally arranged on the test holes on four sides. The calibrated COD digestion instrument was 3 x 5 wells, so 3 flexible thermocouple films 2 were laid. Through test base preforming 12, let flexible thermocouple film 2 temperature measurement region and measured COD clear up the appearance heating hole fully contact, clear up appearance test hole quantity and position according to being measured COD, the device automatically regulated flexible thermocouple film connector 8, the position of lateral sliding connecting rod 9. 5. Data acquisition: the temperature data recording and transmitting device 4 of the COD digestion instrument temperature calibration device is started to be connected with the cloud server 5, and a detection engineer sets a data sampling interval (time interval of sampling every 2 times) through the cloud. And after the measured COD digestion instrument reaches the set temperature for 30 minutes, starting data sampling, recording the temperature data of each flexible thermocouple film 2, and calculating the data such as the temperature average value, the temperature deviation, the temperature uniformity, the temperature fluctuation degree and the like of the measured data of each flexible thermocouple film 2 through the cloud server 5. The positional relationship and the distance between the flexible thermocouple films 2 at the time of the test are recorded by the test base scale 10. 6. Data export: after the recording is completed, the data sampling is closed through the cloud server 5, and then a calibration report is generated as required. 7. System rechecking: and detecting the temperature data of the flexible thermocouple films 2 of the channels again, comparing the temperature data with the temperature data in the temperature data recording and transmitting device 4, and recording the temperature data, wherein when the deviation exceeds +/-0.3 ℃, the mobile terminal of the detection engineer receives the prompt that the sensor is abnormal. Ensure that the calibration device works normally before and after the calibration of the COD digestion instrument and the data is reliable. 8. And (3) completing the test: and (3) closing the COD digestion instrument temperature calibration device, and taking out the arranged flexible thermocouple film 2 after the temperature of the COD digestion instrument is restored to the room temperature to complete the test.
The protection of the present invention is not limited to the above embodiments. Variations and advantages that may occur to those skilled in the art may be incorporated into the utility model without departing from the spirit and scope of the inventive concept, which is set forth in the following claims.
Claims (10)
1. The utility model provides a COD clears up appearance temperature calibrating device which characterized in that includes: the device comprises a test base (1), at least one group of flexible thermocouple films (2), a compensation lead group (3), a temperature data recording and transmitting device (4) and a cloud server (5);
the test base (1) and the flexible thermocouple film (2) are connected with a socket through a connecting sheet; the compensation lead group (3) is electrically connected with the test base (1); the compensation lead group (3) is electrically connected with the temperature data recording and transmitting device (4); and the temperature data recording and transmitting device (4) and the cloud server (5) are in wireless transmission.
2. The COD digestion instrument temperature calibration device according to claim 1, wherein the test base (1) comprises a base (6), a sliding connecting rod (7), at least one set of flexible thermocouple thin film connectors (8), a transverse sliding connecting rod (9), a fixed scale (10), a pressing sheet support post (11), a pressing sheet (12), a compensation wire set and a data transmission connecting interface (13);
the test base (1) is made of an insulating non-metallic material; the sliding connecting rod (7), the scaling plate (10), the compensation lead group and the data transmission connecting interface (13) are fixed on the base (6);
the sliding connecting rods (7), namely the anode sliding connecting rod (28) and the cathode sliding connecting rod (29), are all made of universal thermocouple materials; one ends of the anode sliding connecting rod (28) and the cathode sliding connecting rod (29) are connected with the transverse sliding connecting rod (9) by adopting tracks, and the other ends are electrically connected with the compensation lead group and the data transmission connecting interface (13); the anode sliding connecting rod (28) is connected with the compensation lead group and the data transmission connecting interface (13) through a thermocouple anode connecting line group (30); the cathode sliding connecting rod (29) is connected with the compensation lead group and the data transmission connecting interface (13) through a thermocouple cathode connecting wire group (31); the positions of the sliding connecting rod (7) and the transverse sliding connecting rod (9) are automatically or manually adjusted according to the aperture position and the number of the COD digestion instruments to be actually measured;
the flexible thermocouple thin film connector (8) is made of an insulating non-metal material and is made of a silicon plate, is connected with the transverse sliding connecting rod (9) through a rail and can slide on the transverse sliding connecting rod (9); the flexible thermocouple film connector (8) is connected with the compensation lead group and the data transmission connection interface (13) through a sliding connection rod (7) and a transverse sliding connection rod (9);
the transverse sliding connecting rod (9) comprises at least one group of anode connecting wires (32) and cathode connecting wires (33), and each flexible thermocouple thin film connector (8) corresponds to one group of anode connecting wires (32) and cathode connecting wires (33); one end of the anode connecting wire (32) is connected with the flexible thermocouple film anode connecting sheet (19) by adopting a socket and a connecting sheet, and the other end of the anode connecting wire is connected with the anode sliding connecting rod (28) by adopting a track; one end of the cathode connecting wire (33) is connected with the flexible thermocouple film cathode connecting sheet (20) by adopting a socket and a connecting sheet, and the other end of the cathode connecting wire is connected with the cathode sliding connecting rod (29) by adopting a track; the anode sliding connecting rod (28), the thermocouple anode connecting wire group (30) and the anode connecting wire (32) are made of the same thermocouple universal anode material; the cathode sliding connecting rod (29), the thermocouple cathode connecting wire group (31) and the cathode connecting wire (33) are made of the same thermocouple universal cathode material; the number of the anode connecting wires (32), the number of the cathode connecting wires (33) and the number of the flexible thermocouple thin film connectors (8) are kept consistent;
the position data measured by the fixed scale (10) is transmitted and recorded in the temperature data recording and transmitting device (4) through the compensation lead group and the data transmission connecting interface (13);
the pressing piece support post (11) is provided with threads, is made of stainless steel materials and is used for connecting the flexible thermocouple film connector (8), the lengths of the pressing piece (12) and the pressing piece support post (11) are adjusted, and the pressing piece support post (11) is connected with the pressing piece (12) through a fastener; the flexible thermocouple film connector (8) is connected with the flexible thermocouple film (2) in a socket and connecting sheet mode;
the pressing sheet (12) is made of an aluminum sheet with high heat resistance and plasticity, and the temperature measuring area of the flexible thermocouple film (2) is in full contact with the heating hole of the COD digestion instrument to be measured.
3. The COD digestion instrument temperature calibration device according to claim 1, wherein the test base (1) comprises a base (6), at least one group of flexible thermocouple film connecting sockets (34), a fixer (35), a fixing hole (36), a fixed scale (10), a pressing sheet (12), a pressing sheet support column (11), a compensation wire group and a data transmission connecting interface (13);
the test base (1) is made of an insulating non-metallic material;
the flexible thermocouple film connecting socket (34), the fixing hole (36), the scaling scale (10), the compensating lead group and the data transmission connecting interface (13) are fixed on the base (6);
the number and the position of the flexible thermocouple films (2) are determined according to the size of the COD digestion instrument to be tested and the testing requirements of the positions of the heating holes;
the position data measured by the fixed scale (10) is transmitted and recorded in the temperature data recording and transmitting device (4) through the compensation lead group and the data transmission connecting interface (13);
the tabletting (12) enables the temperature measuring area of the flexible thermocouple film (2) to be fully contacted with the heating hole of the COD digestion instrument to be measured;
the fixer (35) is connected with the threads on the pressing sheet support post (11), the lengths of the pressing sheet support post (11) and the pressing sheet (12) are adjusted, and the pressing sheet (12) is connected with the pressing sheet support post (11) through a fastener.
4. The COD digestion apparatus temperature calibration device according to claim 1, wherein the flexible thermocouple membrane (2) comprises a flexible substrate (14), a flexible insulating layer (15), a flexible thermocouple anode (16), a flexible thermocouple cathode (17), a protective layer (18), an anode connection tab (19), a cathode connection tab (20), a connection tab fixing member (21).
5. The COD digestion instrument temperature calibration device according to claim 4, wherein the flexible substrate (14) is made of flexible high temperature resistant metal material with fast heat conduction, the flexible insulating layer (15) is made of high-temperature-resistant insulating material, the flexible thermocouple anode (16) and the flexible thermocouple cathode (17) are made of universal thermocouple electrode material, the anode connecting sheet (19) is made of the same material as the flexible thermocouple anode (16), the cathode connecting sheet (20) is made of the same material as the flexible thermocouple cathode (17), the protective layer (18) is made of high-temperature-resistant insulating materials, and the connecting piece fixing piece (21) is connected with the flexible substrate (14), the flexible insulating layer (15), the flexible thermocouple anode (16) or the flexible thermocouple cathode (17), the anode connecting piece (19) or the cathode connecting piece (20) through fasteners; the connecting sheet fixing piece (21) is made of an insulating non-metal material.
6. The COD digestion instrument temperature calibration device according to claim 4, wherein the flexible insulation layer (15) is attached to the surface of the flexible substrate (14) by screen printing, spraying, plasma sputtering;
the flexible thermocouple anode (16) and the flexible thermocouple cathode (17) are prepared on the flexible insulating layer (15) by adopting a plasma sputtering method and a screen printing method, the flexible thermocouple anode (16) and the flexible thermocouple cathode (17) are sequentially prepared, the flexible thermocouple anode (16) and the flexible thermocouple cathode (17) are partially overlapped, and the overlapped part is a heat connecting area of the flexible thermocouple film, namely a temperature measuring area;
the protective layer (18) is prepared by a plasma method, a screen printing method and a spraying method, covers the flexible thermocouple anode (16) and the flexible thermocouple cathode (17), and exposes the heat connecting area;
the flexible thermocouple anode (16) is connected with the anode connecting sheet (19), the flexible thermocouple cathode (17) is connected with the cathode connecting sheet (20), and the flexible thermocouple anode and the flexible thermocouple cathode are all fixedly connected by a connecting sheet fixing piece (21).
7. The COD digestion instrument temperature calibration device according to claim 4, wherein the compensation lead group (3) comprises a group of compensation leads (22) and two compensation lead interfaces (23), the anode of the compensation leads is made of the same material as the flexible thermocouple anode (16), the cathode of the compensation leads is made of the same material as the flexible thermocouple cathode (17), and the flexible thermocouple anode (16) and the flexible thermocouple cathode (17) are made of common thermocouple electrode materials.
8. The COD digestion instrument temperature calibration device according to claim 1, wherein the number and position of the flexible thermocouple films (2) are determined according to the connected COD digestion instrument size and heating hole position test requirements, and specifically comprises:
1) when the number of the test holes of the COD digestion instrument is less than or equal to 4 x 4, the flexible thermocouple film is arranged at the position of the central test hole; 2) when the number of the unilateral test holes of the COD digestion instrument is more than 4, the flexible thermocouple films are additionally arranged on the test holes at the two ends of the side; 3) when the number of the test holes on both sides of the COD digestion instrument is more than 4, the flexible thermocouple films are additionally arranged on the test holes on four sides.
9. The COD digestion instrument temperature calibration apparatus according to claim 1, wherein the temperature data recording and transmitting means (4) comprises: the temperature and humidity sensor comprises a compensation lead group interface (24), a temperature and humidity probe (25), a signal transceiving module (26) and a data processing and storing module (27);
a temperature and humidity probe (25) is arranged in the temperature data recording and transmitting device (4), the number of temperature measuring channels of the flexible thermocouple film is started according to the size of the COD digestion instrument, a temperature measuring distribution point position diagram is generated, and data of each temperature measuring channel is recorded; all relevant data are recorded in the data processing and storing module (27) and are sent to the cloud server (5) for recording and storing.
10. The COD digestion instrument temperature calibration device according to claim 1, wherein the temperature data recording and transmitting device (4) and the cloud server (5) are replaced by a temperature data recorder, the compensation lead group (3) is directly connected to the temperature data recorder, and the real-time temperature of each flexible thermocouple film (2) is observed and recorded through the temperature data recorder, but the system self-checking and remote observation functions cannot be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120004350.0U CN215767925U (en) | 2021-01-04 | 2021-01-04 | COD clears up appearance temperature calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120004350.0U CN215767925U (en) | 2021-01-04 | 2021-01-04 | COD clears up appearance temperature calibrating device |
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| Publication Number | Publication Date |
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| CN215767925U true CN215767925U (en) | 2022-02-08 |
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| CN202120004350.0U Expired - Fee Related CN215767925U (en) | 2021-01-04 | 2021-01-04 | COD clears up appearance temperature calibrating device |
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| Country | Link |
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| CN (1) | CN215767925U (en) |
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2021
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