CN106482853B - The thermocouple fixing device of temperature rise test in a kind of power equipment - Google Patents
The thermocouple fixing device of temperature rise test in a kind of power equipment Download PDFInfo
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- CN106482853B CN106482853B CN201510560761.7A CN201510560761A CN106482853B CN 106482853 B CN106482853 B CN 106482853B CN 201510560761 A CN201510560761 A CN 201510560761A CN 106482853 B CN106482853 B CN 106482853B
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Abstract
The present invention relates to a kind of thermocouple fixing devices of temperature rise test in power equipment, it is characterized in that, including cavity, perforating mechanism, thermocouple placement mechanism, deflection mechanism, wind turbine, solenoid valve, trigger start button, control module and battery modules, the cavity is equipped with opening, the battery modules are electrical connected with trigger start button, control module, wind turbine, solenoid valve, and the control module is electrical connected with perforating mechanism, thermocouple placement mechanism, deflection mechanism and trigger start button.The present invention greatly improves work efficiency while meeting standard requirement and improving measurement accuracy and is not necessarily to correct with the fixed reliability of thermocouple and fastness, test result, and to laboratory technician without any potential dangerous and environmental pollution.The present invention using lithium battery be used as power supply, compact volume and convenience and securely and reliably.
Description
Technical field
The present invention relates to a kind of experiment auxiliary devices, more particularly to for a kind of heat of the temperature rise test in power equipment
Galvanic couple fixing device.
Background technology：
Power equipment temperature rise experiment be strictly required in national Specification type approval test the important tests that must examine it
One, standard GB7251.1-2005《Low-voltage complete switch equipment and control device _ part 1 _ type approval test and the examination of part pattern
Test complete set of equipments》,GB11022-2011《The common specification of the control device standard of high-tension switch gear》And GB1984-
2014《High-voltage AC breaker》It is carried out respectively Deng to equipment such as low voltage complete set, high-tension switch gear and high-voltage circuitbreakers
The regulation of temperature rise test and requirement.Temperature rise test mainly examines the current-carrying capability of product at rated loads, i.e., in the long period
Interior to pass to rated operational current to product, the temperature until everywhere reaches the through-flow test until stablizing.If its temperature is more than
The electric conductor specified value, may make the physics of its material, chemical property change, and mechanical performance and electric property decline.
Especially at electric conductor and contact, temperature is excessively high to make its surface aoxidize strongly, and contact resistance increases, or even it can be made molten
Change.The parts manufactured by insulating materials can gradually become fragile, decreasing insulating finally results in production in aging since temperature is excessively high
Product break down, and cause major accident.Due to being a kind of active sensor, when measurement, is not required to the thermocouple used in temperature rise test
Additional power source, use is very convenient, and simple in structure, easily manufactured, wide range of measurement, precision are high, inertia is small and output signal
Many advantages, such as convenient for teletransmission, so being often used as measuring the surface temperature of power equipment heat-conducting piece or insulating part solid.Electric power
Equipment temperature rise test conduction time is typically about 6~10 hours, but even longer the time required to the preparation before temperature rise test,
The mainly arrangement of thermocouple and fixation, for a common low-tension switch cabinet (such as low pressure draw-out type complete cabinet, abbreviation GCK)
Or high-tension switch gear (such as high voltage mid-placed cabinet, abbreviation KYN), it is about 20~30 per mutually about stationing number, three-phase number is then
About 60~90, the arrangement fixed cycle of thermocouple about needs 10~20 hours, for some structure specialities, even more
It is long.For the fixed form of thermocouple, IECEE-CTL (International Electrotechnical Commission's electric product conformity testing and qualification organization-
The test laboratory committee) formulate CTL-OP018 resolution《About the preparation of thermocouple, installation, extension and the experiment used
Room program》In clearly stipulate that the fixed form of thermocouple has：Binding, the injection of bonding, gluing, groove and soldering.Since electric power is set
Standby mostly overall volume is huge, and inner space is limited and complicated, and thermocouple, which is fixed, is not suitable for consolidating using binding and soldering
Determine mode.
Current most domestic test mechanism or industrial enterprise are all to use relatively simple convenient gluing in the prior art
Or the mode of bonding, but the mode of gluing is especially time-consuming and laborious in practical operation, fixes a point and needs to wait for 502 glue
It condenses and fixed, 30 seconds~60 seconds is at least needed, moreover, because gluing is unstable, during temperature rise test, with temperature
It increases, thermocouple is often easy to fall off, and is led to entire temperature rise test failure due to that can not collect the data of separation point and is needed
Come again.In addition standard GB763-90《Fever of the ac high-voltage electric appliance in long-term work》It is also clearly stated in appendix C 3, due to
502 glue heat resistances are bad, the measurement range of gluing fixation generally at 100 DEG C once, due to the thermal resistance of jelly, gluing is made to fix
The temperature that method is measured is relatively low, also needs further to correct.As it can be seen that the gluing fixation of thermocouple is gone back in stability and in accuracy
There are many defects, in addition more importantly since 502 glue are that tackifier, steady are added based on α-cyanoacrylate
Determine agent, toughener, polymerization inhibitor etc., toxic substance is also will produce after decomposition, the health to testing crew and experiment is used for a long time
Room environmental can cause certain damage and pollution.It is also specifically mentioned in mode CTL-OP018 resolution 4.6.13 sections of bonding
" while ensureing that thermocouple is fixed, using few adhesive tape as possible ", because high temperature gummed tape destroys the working environment of test product,
Generate heat the heat exchange method on test product surface itself and outside air, and in actual condition, there is no this layer of high-temp glues on test product surface
Band covering, so in actual tests, unless some measurement portions of test product are special, space is limited, without better way
Just use such fixed form.Respectively clearly stipulate that for AC high voltage in Section 6.1 and Section 6.4 of standard GB763-90
Device equipment temperature rise test uses thermocouple measuring temperature, and " thermocouple should be tightly fixed in the measurement point of test product.Fixed form
It can be riveted tightly with drilling, gluing or soldering weld.When laying thermocouple measuring temperature by the way of gluing, measurement result is coped with
It is modified (see appendix C in standard) ", " embedded aperture and depth of the pyrometer fire-end on electric appliance are respectively equal to or are slightly larger than
The maximum gauge and weld length of hot junction welding portion ".As it can be seen that the fixed form that thermocouple drilling is riveted tightly is determined with CTL-OP018
The mode for the groove injection mentioned in view is similar.Mention that " thermal cross is fixed in 4.6.11 sections in CTL-OP018 resolutions
In groove, metal injection powder thereon ", and some authoritative testing agencies International or National at present, all it is to be riveted tightly using drilling
Mode, i.e., sharp awl is bored an aperture (aperture is about 3.0mm~3.5mm) with one in measurement point first, then will
Pyrometer fire-end (maximum gauge is about 1.5mm~2.8mm) is put into aperture, finally bores one with awl again near this aperture
A aperture, thermocouple are fixed due to being extruded the landfill that just run on a bank.The fixed form riveted tightly drill with respect to gluing fixation
For, fixation is not easily to fall off, but efficiency is suitable, also cumbersome cumbersome, for some power equipments since space has
Limit, complicated, visual angle limit value, it may be necessary to which another people or two people assist that (wherein people drilling, a people could be completed
Fill thermocouple, people's torch irradiation), there is also certain danger for this mode, in boring procedure, since human hand is in filling warm
Galvanic couple, when being fixed in aperture, then near aperture when second aperture of hammering, cone is extremely close from human hand, is easy dislocation, occurs
Accident.
Invention content
In view of the deficiencies of the prior art, the purpose of the present invention, which is intended to offer one kind, carrying out heat in temperature rise test
Galvanic couple installs rapidly fixed device, and installing fixed thermocouple by this device not only complies fully in national standard about temperature
The relevant regulations of experiment are risen, and greatly improve measuring accuracy and working efficiency, and to experimental enviroment without any pollution.
The present invention adopts the following technical scheme that：
The thermocouple fixing device of temperature rise test in a kind of power equipment, including cavity, perforating mechanism, thermocouple place machine
Structure, deflection mechanism, wind turbine, solenoid valve, trigger start button, control module and battery modules, the one side of the cavity, which is equipped with, to be opened
Mouthful, the battery modules are electrical connected with control module, wind turbine, solenoid valve, and the control module is put with perforating mechanism, thermocouple
Mechanism, deflection mechanism and trigger start button is set to be electrical connected；
The perforating mechanism includes drilling rod, the first spring, the first electromagnetic switch and deflection film, and the drilling rod is by bit head
Point, coupling part, drive part composition, one end of the drilling rod drive part is connected by coupling part with bit part, institute
The other end for stating drilling rod drive part is fixed in the cavity by the first spring, and first electromagnetic switch is mounted on the drive of drilling rod
On dynamic part, the drive part is also equipped with deflection film；
The deflection mechanism includes the second electromagnetic switch, deflecting bar and second spring, and the deflection mechanism passes through the second bullet
Spring is mounted at the top of cavity, and one end of the deflecting bar is connected with the second electromagnetic switch, the other end of the deflecting bar with it is described
The deflection film of perforating mechanism is opposite；
The thermocouple placement mechanism includes tracheae, third electromagnetic switch and third spring, the shape of one end of the tracheae
Shape is tubaeform, and the other end of the tracheae is fixed in the cavity by third spring, and the third electromagnetic switch 32 is installed
On tracheae；
The bit part of the drilling rod and the position of tracheae are in same axis direction.
Preferably, the tracheae is additionally provided with a connector, and the connector is connected by hose with solenoid valve, the electromagnetism
It is connected with wind turbine by air duct.
Preferably, the quantity of the wind turbine can also be two, and first wind turbine passes through the first air duct and solenoid valve phase
Even, second wind turbine is connected by the second air duct with solenoid valve；Two wind turbines, one of to rotate forward, another reversion, two
Wind turbine is independently divided.
Preferably, the cavity is additionally provided with third air duct, and the wind turbine outside third air duct and cavity by being connected.
Preferably, the deflecting bar is also set up close to one end of deflection film there are one pulley.
Preferably, the internal diameter of the tracheae is between 0.1mm-1.2mm.
Preferably, the bottom of the cavity is additionally provided with notch.
Preferably, power knob is additionally provided on the cavity, the power knob is electrical connected with wind turbine.
Beneficial effects of the present invention are as follows：
The fixation of each thermocouple of one man operation of the present invention is no more than 2 seconds, the electric power for making temperature rise test generally for one
For equipment (GCK or KYN), the time of fixed thermocouple is 10~20 hours, and after using technical solution, the set time can
To shorten to 1~2 hour, and firm stable, while meeting standard requirement and improving working efficiency, heat is substantially increased
The fixed reliability of galvanic couple and fastness, and to laboratory technician without any potential dangerous and environmental pollution.The present invention is using lithium electricity
Pond is as power supply, compact volume and convenience and safe and reliable, and control system uses micro- microcontroller, control electronic switch MOSFET pipes driving to close
Lock electromagnet, whole system strong antijamming capability, control is accurate, and electronic switch long lifespan.
Description of the drawings
Fig. 1 is the overall schematic of the thermocouple fixing device of temperature rise test in a kind of power equipment of the present invention；
Fig. 2 is that first use state of the thermocouple fixing device of temperature rise test in a kind of power equipment of the present invention (is beaten
First hole) reference chart；
Fig. 3 is that second use state of the thermocouple fixing device of temperature rise test in a kind of power equipment of the present invention (is beaten
Holes mechanism reset) reference chart；
Fig. 4 is that the third use state of the thermocouple fixing device of temperature rise test in a kind of power equipment of the present invention (is beaten
Holes mechanism deflect) reference chart；
Fig. 5 is that the 4th use state of the thermocouple fixing device of temperature rise test in a kind of power equipment of the present invention (pushes away
Send in thermocouple to hole) reference chart；
Fig. 6 is that the 5th use state of the thermocouple fixing device of temperature rise test in a kind of power equipment of the present invention (is beaten
Resetted behind second hole) reference chart；
Fig. 7 is the structure amplification of the deflection mechanism of the thermocouple fixing device of temperature rise test in a kind of power equipment of the present invention
Figure；
Fig. 8 is the electric connection of the control module of the thermocouple fixing device of temperature rise test in a kind of power equipment of the present invention
Figure.
In figure：1, cavity；2, perforating mechanism；3, thermocouple placement mechanism；4, deflection mechanism；5, wind turbine；6, solenoid valve；7,
Trigger start button；8, control module；9, battery modules；10, air duct；11, thermocouple；12, power knob；13, notch；21,
First spring；22, the first electromagnetic switch；23, deflection film；24, drilling rod；31, third spring；32, third electromagnetic switch；33, gas
Pipe；34, connector；35, hose；41, second spring；42, the second electromagnetic switch；43, deflecting bar；44, pulley；101, the first wind
Road；102, the second air duct；103, third air duct；241, bit part；242, coupling part；243, drive part.
Specific implementation mode
Below in conjunction with attached drawing and specific implementation mode, the present invention is described further：
The thermocouple fixing device of temperature rise test in a kind of power equipment, including cavity 1, perforating mechanism 2, thermocouple are placed
Mechanism 3, deflection mechanism 4, wind turbine 5, solenoid valve 6, trigger start button 7, control module 8 and battery modules 9.The cavity 1 is set
There are opening, the battery modules 9 to be electrical connected with trigger start button 7, control module 8, wind turbine 5, solenoid valve 6, the control
Module 8 is electrical connected with perforating mechanism 2, thermocouple placement mechanism 3, deflection mechanism 4 and trigger start button 7；The control mould
Block 8 is controlled using microcontroller, and perforating mechanism 2, thermocouple placement mechanism are controlled by receiving the electric signal of trigger start button 7
3 and deflection mechanism 4.
The perforating mechanism 2 includes drilling rod 24, the first spring 21, the first electromagnetic switch 22 and deflection film 23.Described first
Electromagnetic switch 22 is the combination of electromagnet and switch.It will produce electromagnetic force after electromagnet coil power, the drilling rod 24
Effect is beaten is punched on object under test, and the drilling rod 24 divides for three parts, respectively bit part 241, coupling part
242, drive part 243 forms, and 241 one end of the bit part is tip, and the other end passes through coupling part 242 and drive part
243 are connected, and one end of 24 drive part 243 of the drilling rod is fixed in cavity 1 by the first spring 21, first electricity
Magnetic switch 22 is mounted on the drive part 243 of drilling rod 24, as shown in Fig. 2, when trigger start button 7 is opened, control module 8
An electric signal is sent to the first electromagnetic switch 22, the electromagnetic force that the first electromagnetic switch 22 generates after starting drives drilling rod 24 waiting for
It surveys on object and is punched, the drive part 243 is also equipped with deflection film 23；
The deflection mechanism 4 includes the second electromagnetic switch 42, deflecting bar 43 and second spring 41, and the deflection mechanism 4 is logical
Second spring 41 is crossed mounted on 1 top of cavity, one end of the deflecting bar 43 is connected with the second electromagnetic switch 42, the deflecting bar
43 other end is opposite with the deflection film 23 of the perforating mechanism 2, as shown in Figure 3 and Figure 4, when drilling rod 24 is enterprising in object under test
After row punching, control module 8 sends a lasting electric signal to the second electromagnetic switch 42, and second electromagnetic switch 42 is
The combination of electromagnet and switch.It will produce electromagnetism power drive deflecting bar 43 after electromagnet coil power and do axial fortune downwards
It is dynamic, the drive part 243 of the drilling rod 24 can be driven to do after deflecting bar 43 touches deflection film 23 of perforating mechanism 2 axial
Rotation, to make bit part 241 that the deflection of certain angle occur.
Preferably, the angle of deflection is at ± 3 DEG C~5 DEG C
Preferably, the deflecting bar 43 is also set up close to one end of deflection film 23 there are one pulley 44, the pulley 44
Effect is that sliding friction between reducing two when deflecting bar 43 contacts deflection film 23 improves the service life of the two.
The thermocouple placement mechanism 3 includes tracheae 33, third electromagnetic switch 32 and third spring 31, the tracheae 33
The shape of one end is tubaeform, it is preferable that for the internal diameter of the tracheae 33 between 0.1mm~1.2mm, such thermocouple 11 will not
It is inhaled into tracheae 33, the other end of the tracheae 33 is fixed on by third spring 31 in cavity 1, and the third electromagnetism is opened
32 are closed to be mounted on tracheae 33；The tracheae 33 is additionally provided with a connector 34, and the connector 34 passes through hose 35 and solenoid valve 6
It is connected, the solenoid valve 6 is connected by the first air duct 101 and the second air duct 102 with wind turbine 5 respectively.Preferably, the cavity 1
It is additionally provided with third air duct 103, the wind turbine 5 outside third air duct 103 and cavity 1 by being connected.
In conjunction with shown in Fig. 2-5, when trigger start button 7 is opened, control module 8 controls the startup of wind turbine 5, solenoid valve simultaneously
6 the first air ducts 101 of control are opened, and the second air duct 102 is closed, and the direction of rotation of wind turbine 5 is reversion at this time, and air-flow is successively from tracheae
33 flow into, and by hose 35 and the first air duct 101, are flowed out from third air duct 103, thermocouple 11 can be attracted to tracheae at this time
At 33 horn mouth, when the bit part 241 of the drilling rod 24 deflects, the control module 8 is to third electromagnetism
Switch 32 sends electric signal, and the third electromagnetic switch 32 is the combination of electromagnet and switch.After electromagnet coil power
It will produce electromagnetic force control tracheae 33 and thermocouple 11 be pushed into 241 punched hole of bit part, at this point, the control of solenoid valve 6 second
Air duct 102 is opened, and the first air duct 101 is closed, and the direction of rotation of wind turbine 5 is changed to rotate forward at this time, and the slave third air duct 103 of air-flow is inhaled
Enter, thermocouple 11 is pressed in hole by hose 35 and the second air duct 102.
In conjunction with shown in Fig. 6, when thermocouple 11 is pressed in hole, the first electromagnetic switch of secondary control again of control module 8
22 are punched, since drilling rod 24 has occurred that offset, so original drilling can deform upon, to consolidate thermocouple 11
It is scheduled in hole,
Preferably, the quantity of the wind turbine 5 can also be two, and two Fans 5 pass through the first air duct 101 and respectively
Two air ducts 102 are connected with solenoid valve 6；Two wind turbines, one of to rotate forward, another reversion, two wind turbines are independently divided.
Preferably, power knob 12 is additionally provided on the cavity 1, the power knob 12 is electrical connected with wind turbine 5, when
When thermocouple need not be fixed, the opening and closing of wind turbine 5 can be controlled by power knob 12.
The fixation of each thermocouple of one man operation of the present invention is no more than 2 seconds, the electric power for making temperature rise test generally for one
For equipment (GCK or KYN), the time of fixed thermocouple is 10~20 hours, and after using technical solution, the set time is only
It needs 1~2 hour, and firm stable, is meeting standard requirement, while improving working efficiency and measuring accuracy, significantly
The fixed reliability of thermocouple and fastness are improved, test result is not necessarily to correct, and to laboratory technician without any potential danger
And environmental pollution.The present invention is used as power supply using lithium battery, compact volume and convenience and safe and reliable, control system using micro- microcontroller,
It controls electronic switch MOSFET pipes and drives switching electromagnet, whole system strong antijamming capability, control is accurate, and the electronic switch longevity
Life length.
For those skilled in the art, technical solution that can be as described above and design are made other each
Kind is corresponding to be changed and deforms, and all these change and deform the protection model that should all belong to the claims in the present invention
Within enclosing.
Claims (6)
1. the thermocouple fixing device of temperature rise test in a kind of power equipment, which is characterized in that including cavity, perforating mechanism, heat
Galvanic couple placement mechanism, deflection mechanism, wind turbine, solenoid valve, trigger start button, control module and battery modules, the cavity are set
There is opening, the battery modules to be electrical connected with trigger start button, control module, wind turbine, solenoid valve, the control module with
Perforating mechanism, thermocouple placement mechanism, deflection mechanism and trigger start button are electrical connected；
The perforating mechanism includes drilling rod, the first spring, the first electromagnetic switch and deflection film, and the drilling rod is by bit part, company
Socket part point, drive part composition, one end of the drive part of the drilling rod are connected by coupling part with bit part, the brill
The other end of the drive part of bar is fixed in the cavity by the first spring, and first electromagnetic switch is mounted on the driving of drilling rod
On part, the drive part is also equipped with deflection film；
The deflection mechanism includes the second electromagnetic switch, deflecting bar and second spring, and the deflection mechanism is pacified by second spring
At the top of cavity, one end of the deflecting bar is connected with the second electromagnetic switch, the other end of the deflecting bar and the punching
The deflection film of mechanism is opposite；
The thermocouple placement mechanism includes tracheae, third electromagnetic switch and third spring, and the shape of one end of the tracheae is
Tubaeform, the other end of the tracheae is fixed in the cavity by third spring, and the third electromagnetic switch is mounted on tracheae；
The bit part of the drilling rod and the position of tracheae are in same axis direction；
The tracheae is additionally provided with a connector, and the connector is connected by hose with solenoid valve, and the solenoid valve passes through respectively
First air duct and the second air duct are connected with wind turbine；
The cavity is additionally provided with third air duct, and the wind turbine outside third air duct and cavity by being connected.
2. the thermocouple fixing device of temperature rise test, the quantity of the wind turbine in a kind of power equipment as described in claim 1
It can also be two, two wind turbines are one of to rotate forward, another reversion, and two wind turbines are independently divided.
3. the thermocouple fixing device of temperature rise test in a kind of power equipment as described in claim 1, which is characterized in that described
Deflecting bar is also set up close to one end of deflection film there are one pulley.
4. the thermocouple fixing device of temperature rise test in a kind of power equipment as described in claim 1, which is characterized in that described
The internal diameter of tracheae is between 0.1mm~1.2mm.
5. the thermocouple fixing device of temperature rise test in a kind of power equipment as described in claim 1, which is characterized in that described
The bottom of cavity is additionally provided with notch.
6. the thermocouple fixing device of temperature rise test in a kind of power equipment as described in claim 1, which is characterized in that described
Power knob is additionally provided on cavity, the power knob is electrical connected with wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560761.7A CN106482853B (en) | 2015-09-02 | 2015-09-02 | The thermocouple fixing device of temperature rise test in a kind of power equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560761.7A CN106482853B (en) | 2015-09-02 | 2015-09-02 | The thermocouple fixing device of temperature rise test in a kind of power equipment |
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| CN106482853A CN106482853A (en) | 2017-03-08 |
| CN106482853B true CN106482853B (en) | 2018-10-23 |
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| CN113030718A (en) * | 2021-03-25 | 2021-06-25 | 苏州电器科学研究院股份有限公司 | High-voltage switch temperature rise test method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3443590A1 (en) * | 1984-11-29 | 1986-05-28 | Hilti Ag, Schaan | METHOD FOR MAKING EXCEPTIONS |
| US5869801A (en) * | 1995-02-15 | 1999-02-09 | The E.O. Paton Electric Welding Institute Of The National Academy Of Sciences Of Ukraine, | Device for manual electron beam processing of materials in space |
| CN201413382Y (en) * | 2009-06-12 | 2010-02-24 | 辽宁省电力有限公司抚顺供电公司 | Measuring assembly |
| CN102914376A (en) * | 2012-10-16 | 2013-02-06 | 珠海黑石电气自动化科技有限公司 | Equipotential temperature measuring device |
| CN204064488U (en) * | 2014-06-23 | 2014-12-31 | 国家电网公司 | A kind of temperature rise test thermopair line concentrator |
-
2015
- 2015-09-02 CN CN201510560761.7A patent/CN106482853B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3443590A1 (en) * | 1984-11-29 | 1986-05-28 | Hilti Ag, Schaan | METHOD FOR MAKING EXCEPTIONS |
| US5869801A (en) * | 1995-02-15 | 1999-02-09 | The E.O. Paton Electric Welding Institute Of The National Academy Of Sciences Of Ukraine, | Device for manual electron beam processing of materials in space |
| CN201413382Y (en) * | 2009-06-12 | 2010-02-24 | 辽宁省电力有限公司抚顺供电公司 | Measuring assembly |
| CN102914376A (en) * | 2012-10-16 | 2013-02-06 | 珠海黑石电气自动化科技有限公司 | Equipotential temperature measuring device |
| CN204064488U (en) * | 2014-06-23 | 2014-12-31 | 国家电网公司 | A kind of temperature rise test thermopair line concentrator |
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