CN209432378U - Transformer leak test automatic detection device - Google Patents
Transformer leak test automatic detection device Download PDFInfo
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- CN209432378U CN209432378U CN201822252965.6U CN201822252965U CN209432378U CN 209432378 U CN209432378 U CN 209432378U CN 201822252965 U CN201822252965 U CN 201822252965U CN 209432378 U CN209432378 U CN 209432378U
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- baroceptor
- solenoid valve
- gas holder
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Abstract
The utility model discloses a kind of transformer leak test automatic detection devices, including lower pressure tanks, power module, main control module, high pressure gas holder, shell, solenoid valve I, solenoid valve II, pressure reducing valve, air inlet pipe, baroceptor I, baroceptor II, baroceptor III, flange, loudspeaker, display, control button, pipeline I, pipeline II, valve, high-pressure hose, heating wire and temperature sensor；Main control module is mainly made of circuit board, arm processor, memory and timer.The utility model simple structure and reasonable design, the pressure condition in adjustment capsule can be automatically controlled by solenoid valve I and solenoid valve II, and drawing velocity is controlled by pressure reducing valve, can effectively avoid punching press excessive and capsule is caused to damage, can be improved the safety of equipment；And heating lower pressure tanks and high pressure gas holder are controlled to specific temperature by heating wire, charge and discharge atmospheric pressure value can be accurately grasped, so that testing result is more accurate.
Description
Technical field
The utility model belongs to transformer special test equipment field, is related to a kind of transformer leak test automatic detection device.
Background technique
With the continuous increase of power grid and transmission line of electricity capacity, high-power transformer purposes is more and more wider, in view of oil immersed type
Transformer capacity adaptability is preferable, and installation requirement is lower and overload capacity is stronger, so obtaining in electric system relatively broad
Application；Transformer oil bears insulation and cooling effect, and quality requirements are higher, do not allow directly to connect with air in operation
Touching, and the phenomenon that the components such as transformer are due to the variation of load and environment temperature, and there are expansion and shrinkages, to guarantee that it is normal
Expansion and shrinkage, while oil being avoided directly to contact with the external world, conservator capsule is exactly sharp weapon therein, is cooperated with respirator, both
Ensure that transformer normally expand, shrinkage (breathing), also avoid oil and directly contacted with extraneous, while also can immediate reaction change
Depressor oil level.Its principle is that capsule gas is identical as atmosphere by dehydrating breather, and the bottom surface of collapsible bag is tightly attached in oil conservater
Pasta on, make there is no air between capsule and pasta, when pasta changes, under the action of oil pressure and atmospheric pressure, glue
Capsule can be expanded and be shunk therewith, and oil is sent out or absorbed.
Currently, being at the scene mostly to be inflated using nitrogen or air compressor machine to capsule in service work, on the one hand cannot
Control inflatable body pressure in time, it is excessive to lead to be filled with gas atmosphere, be easy to cause the movement oil spout of main transformer pressure relief valve and to wave
Capsule damage in bellows or capsule conservator in line conservator, on the other hand can not effectively grasp pressure and environment temperature feelings
It is inaccurate to lead to testing result, and is affected by temperature for condition, and the pressure in capsule becomes larger, becomes smaller or can not obtain more than its threshold values
To effective control.
Utility model content
The utility model in view of the deficiencies of the prior art, proposes that one kind can effectively avoid punching press excessive and capsule is caused to damage
Bad, charge and discharge atmospheric pressure value can accurately be grasped by improving device security, so that the more accurate transformer leak test of testing result is automatic
Detection device.
To achieve the goals above, the utility model uses following technical scheme:
A kind of transformer leak test automatic detection device, including lower pressure tanks, power module, main control module, high pressure gas holder, shell
Body, solenoid valve I, solenoid valve II, pressure reducing valve, air inlet pipe, baroceptor I, baroceptor II, baroceptor III and method
It is blue；The main control module is mainly by circuit board and integrated arm processor, memory and timer group on circuit boards
At；Lower pressure tanks, power module, main control module and the high pressure gas holder is installed in shell；It is installed outside the shell
There are loudspeaker, display and control button；The lower pressure tanks are connected by pipeline I with first interface of tee tube；It is described
Solenoid valve I be mounted on the segment pipe I between lower pressure tanks and tee tube；The baroceptor II is mounted on low pressure
On a segment pipe I between gas tank and solenoid valve I；The high pressure gas holder passes through second interface phase of pipeline II and tee tube
Even；The solenoid valve II is mounted on the segment pipe II between high pressure gas holder and tee tube；The pressure reducing valve is mounted on
On a segment pipe II between solenoid valve II and high pressure gas holder；The baroceptor III is mounted on pressure reducing valve and high pressure gas holder
Between a segment pipe II on；One end of the air inlet pipe is connected with high pressure gas holder；Valve is installed in the air inlet pipe
Door；The third interface of the tee tube is connected by high-pressure hose with flange；The baroceptor I is mounted on flange
On one section of high-pressure hose between tee tube；Heating wire and temperature are mounted on the inside of the lower pressure tanks and high pressure gas holder
Spend sensor；The loudspeaker, display, control button, baroceptor I, temperature sensor, solenoid valve I, heating wire, gas
Pressure sensor II, baroceptor III, solenoid valve II, memory, timer are connected with arm processor；It is the loudspeaker, aobvious
Show device, control button, baroceptor I, temperature sensor, solenoid valve I, heating wire, baroceptor II, baroceptor
III, solenoid valve II, arm processor, memory, timer are electrically connected with power module.
As the further explanation of the utility model, the main control module uses ARM embedded main board.
As the further explanation of the utility model, quick coupling is installed on the other end of the air inlet pipe.Quickly
Connector can access with external inflation or pressurizing device in order to high pressure gas holder and be high pressure gas holder pressurization.
As the further explanation of the utility model, insulating layer is cased on the lower pressure tanks and high pressure gas holder.It protects
Warm layer can prevent electric-heating-wire-heating process heat toward external diffusion.
As the further explanation of the utility model, the pipeline I is equipped with check valve I；It is set on the pipeline II
There is check valve II.Check valve I is arranged on the segment pipe I between tee tube and solenoid valve I, under the control of check valve I, gas
Body can only be flowed into lower pressure tanks；Check valve II is arranged on the segment pipe II between tee tube and solenoid valve II, in list
To under the control of valve II, the gas in high pressure gas holder can only be flowed outwardly.
As the further explanation of the utility model, the solenoid valve I, heating wire, solenoid valve II are by after automatically controlled
Circuit processed is connected with arm processor；The bang-bang circuit is mainly made of relay K and triode Q；Three poles
The emitter of pipe Q and the cathode of power module, be connected, the base stage of triode Q is connected with the output interface of arm processor, three
The collector of pole pipe Q is connected with the control terminal c pin of relay K, the control terminal d pin of relay K and the anode of power module
It is connected, the gate end a pin of relay K is connected with the anode of power module.Solenoid valve I, heating wire, solenoid valve II be not by
With bang-bang circuit be connected with arm processor, in each bang-bang circuit the gate end b pin of relay K with it is corresponding
One input terminal of solenoid valve I, heating wire or solenoid valve II is connected；Another input of solenoid valve I, heating wire or solenoid valve II
End is connected with the cathode of power module.
As the further explanation of the utility model, the power module is lithium battery group；The shell is externally provided with
Charging interface；The charging interface is electrically connected with power module.It can be in order to the charging of power module by external charger
Work.
Working principle of the utility model is:
Lower pressure tanks, power module, main control module and high pressure gas holder are separately mounted to the intracorporal different location of shell；Display
Be mounted on the upper end plate of shell with control button, loudspeaker are mounted on the front console of shell, control button include switch key,
Start key, setting button, exhaust key, parameter regulation key and confirmation key；Tee tube, solenoid valve I and solenoid valve II are equal
It is arranged in shell；Housing side is equipped with the opening interspersed for high-pressure hose and air inlet pipe, and valve and flange are arranged at shell
Outside；
A blow vent is only provided in lower pressure tanks, one end of pipeline I is fixed at the blow vent in lower pressure tanks, pipe
The other end in road I is connected with first interface of tee tube, is connected on the inside of the induction end and pipeline I of baroceptor II；It can
Gas outlet to be arranged in lower pressure tanks, drain tap is set on corresponding gas outlet, convenient for arranging the gas in lower pressure tanks
It walks；
There are two blow vents for setting on high pressure gas holder, and one end of pipeline II is fixed on one of ventilation on high pressure gas holder
At mouthful, the other end of pipeline II is connected with second interface line of tee tube；In the induction end and pipeline II of baroceptor III
Side is connected；
One end of high-pressure hose is fixed on flange, and the other end of high-pressure hose is connected with the third interface of tee tube；
Baroceptor I is arranged close on the high-pressure hose of tee tube side, the induction end of baroceptor I and high-pressure hose it is interior
Side is connected；
Heating wire spirals the inner wall in lower pressure tanks and high pressure gas holder, and temperature sensor is not in contact with heating wire；It can
Also to install a temperature sensor outside shell, for detecting the temperature of environment；
Before use, external inflation or pressurizing device are connected with air inlet pipe, and Open valve, so that high pressure gas holder memory
A certain amount of high pressure gas is stored up, valve is then shut off, and disconnects the connection of external inflation or pressurizing device and air inlet pipe；
This detection device can be placed at this time to transformer oil storage, and high-pressure hose is passed through into flange and glue
Capsule is connected；Heating temperature can be can be set at this time by setting button, determine heating temperature with the switch of open detection device
Afterwards, arm processor control heating wire heats lower pressure tanks and high pressure gas holder, and temperature sensor acquires lower pressure tanks in real time
With the temperature value in high pressure gas holder, and temperature value is fed back into arm processor, if temperature sensor feeds back to ARM
When the temperature value of processor is equal to preset value, arm processor controls heating wire and stops heating, while arm processor acquires gas
Pressure sensor II and baroceptor III feed back the pressure value to come, and by the pressure data storage under Current Temperatures to depositing
In reservoir；Wherein baroceptor II collects the pressure value of lower pressure tanks under Current Temperatures, and baroceptor III collects
The pressure value of high pressure gas holder under Current Temperatures；
Then arm processor control solenoid valve II is opened, the gas in high pressure gas holder followed by pipeline II, tee tube and
High-pressure hose, and enter in the capsule of transformer oil storage, when baroceptor I feeds back to the pressure number of arm processor
When value is equal to preset value, arm processor controls solenoid valve II, and high pressure gas holder gas injection process into capsule can open heating wire
Guarantee that the temperature value after high pressure gas holder is deflated is defined preset value, and when closing solenoid valve II, memory is deposited
The pressure value for storing up baroceptor III at this time, the gas of the available injection capsule of pressure difference before and after being deflated by high pressure gas holder
Pressure；The pressure value of baroceptor I is the pressure value in capsule at this time；
Baroceptor I acquires the pressure value of capsule in real time, and collected pressure data is fed back to ARM processing
Device, under the conditions of the different time sections temperature difference is biggish, the gas pressure intensity of capsule will generate biggish difference, if air pressure
When the pressure value that sensor I feeds back to arm processor is greater than early warning value, arm processor controls solenoid valve I and opens, in capsule
Gas flow into lower pressure tanks, until baroceptor I feed back to arm processor pressure value be equal to preset value
When, arm processor controls solenoid valve I and closes, if the pressure value that baroceptor I feeds back to arm processor is less than early warning
When value, arm processor controls solenoid valve II and opens, until the pressure value that baroceptor I feeds back to arm processor is equal in advance
If until value；
After reaching the time that detection terminates, timer can be sent to the signal that arm processor terminates, arm processor control
Heating wire starting, until reaching preset temperature position, then ARM processing receives the pressure number of high pressure gas holder and lower pressure tanks
Value, and recorded by memory；Pressure difference after can be detected at this time；
Pressure difference of the pressure difference with after when by obtains the pressure change of capsule entirety, while being tied according to detection
The temperature of baroceptor I acquires after beam pressure data and independent detection environment, by determining that formula PV=nRT calculates capsule
The case where with the presence or absence of gas leakage, P are capsule pressure, and V is the volume of capsule, and n is the amount of substance, and R is gas constant, and T is absolute
Temperature；
Pressure reducing valve: can be by the way that the blowing pressure value is adjusted manually；
Display can show corresponding parameter；
After detection, arm processor, which can control loudspeaker 3, can issue the prompting that detection terminates.
Compared with prior art, the utility model have the utility model has the advantages that
1. the utility model can automatically control the pressure condition in adjustment capsule by solenoid valve I and solenoid valve II, and
And drawing velocity is controlled by pressure reducing valve, it can effectively avoid punching press excessive and capsule is caused to damage, can be improved the safety of equipment
Property.
2. the utility model controls heating lower pressure tanks and high pressure gas holder to specific temperature by heating wire, can accurately slap
Charge and discharge atmospheric pressure value is held, so that testing result is more accurate.
3. the utility model can be worked by quick coupling convenient for the fast ram to high pressure gas holder, work people is reduced
The labor intensity of member, improves work efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the usage state diagram of the utility model.
Fig. 3 is the circuit diagram of bang-bang circuit in the utility model.
Appended drawing reference: 1- high-pressure hose, 2- lower pressure tanks, 3- loudspeaker, 4- display, 5- control button, 6- flange, 7- valve
Door, 8- air inlet pipe, 9- quick coupling, 10- shell, 11- power module, 12- main control module, 13- high pressure gas holder, 14- air pressure transmission
Sensor I, 15- temperature sensor, 16- solenoid valve I, 17- check valve, 18- heating wire, 19- baroceptor II, 20- air pressure transmission
Sensor III, 21- tee tube, 22- check valve, 23- solenoid valve II, 24- pressure reducing valve.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Embodiment:
A kind of transformer leak test automatic detection device, including lower pressure tanks 2, power module 11, main control module 12, high pressure gas
Tank 13, shell 10, solenoid valve I 16, solenoid valve II 23, pressure reducing valve 24, air inlet pipe 8, baroceptor I 14, baroceptor II
19, baroceptor III 20 and flange 6；The main control module 12 is mainly by circuit board and integrated ARM on circuit boards
Processor, memory and timer composition；Lower pressure tanks 2, power module 11, main control module 12 and the high pressure gas holder 13 is equal
It is mounted in shell 10；Loudspeaker 3, display 4 and control button 5 are installed outside the shell 10；The lower pressure tanks 2 are logical
Piping I is connected with first interface of tee tube 21；The solenoid valve I 16 be mounted on lower pressure tanks 2 and tee tube 21 it
Between a segment pipe I on；The baroceptor II 19 is mounted on the segment pipe I between lower pressure tanks 2 and solenoid valve I 16
On；The high pressure gas holder 13 is connected by pipeline II with second interface of tee tube 21；The solenoid valve II 23 is installed
On a segment pipe II between high pressure gas holder 13 and tee tube 21；The pressure reducing valve 24 is mounted on solenoid valve II 23 and high pressure
On a segment pipe II between gas tank 13；The baroceptor III 20 is mounted between pressure reducing valve 24 and high pressure gas holder 13
On one segment pipe II；One end of the air inlet pipe 8 is connected with high pressure gas holder 13；Valve is installed in the air inlet pipe 8
7；The third interface of the tee tube 21 is connected by high-pressure hose 1 with flange 6；The baroceptor I 14 is installed
On one section of high-pressure hose between flange 6 and tee tube 21；The inside of the lower pressure tanks 2 and high pressure gas holder 13 is respectively mounted
There are heating wire 18 and temperature sensor 15；The loudspeaker 3, display 4, control button 5, baroceptor I 14, temperature sensing
Device 15, solenoid valve I 16, heating wire 18, baroceptor II 19, baroceptor III 20, solenoid valve II 23, memory, timing
Device is connected with arm processor；The loudspeaker 3, display 4, control button 5, baroceptor I 14, temperature sensor 15,
Solenoid valve I 16, heating wire 18, baroceptor II 19, baroceptor III 20, solenoid valve II 23, arm processor, memory,
Timer is electrically connected with power module 11.
The main control module 12 uses ARM7 embedded main board.
Quick coupling 9 is installed on the other end of the air inlet pipe 8.
Insulating layer is cased in the lower pressure tanks 2 and high pressure gas holder 13.
The pipeline I is equipped with check valve 17 I；The pipeline II is equipped with check valve 22 II.
The solenoid valve I 16, heating wire 18, solenoid valve II 23 are connected by bang-bang circuit with arm processor；
The bang-bang circuit is mainly made of relay K and triode Q；The emitter and power module of the triode Q
11 cathode, be connected, the base stage of triode Q is connected with the output interface of arm processor, the collector and relay of triode Q
The control terminal c pin of device K is connected, and the control terminal d pin of relay K is connected with the anode of power module 11, the gate of relay K
End a pin is connected with the anode of power module 11.
The power module 11 is lithium battery group；The shell 10 is externally provided with charging interface；The charging interface
It is electrically connected with power module 11.
The working principle of the embodiment:
Lower pressure tanks 2, power module 11, main control module 12 and high pressure gas holder 13 are separately mounted to the different positions in shell 10
It sets；Display 4 and control button 5 are mounted on the upper end plate of shell 10, and loudspeaker 3 are mounted on the front console of shell 10, control
Key 5 includes switch key, starts key, setting button, exhaust key, parameter regulation key and confirmation key；Tee tube 21,
Solenoid valve I 16 and solenoid valve II 23 are arranged in shell 10；10 side of shell is equipped with interspersed for high-pressure hose 1 and air inlet pipe 8
Opening, valve 7 and flange 6 are arranged at outside shell 10；
A blow vent is only provided in lower pressure tanks 2, one end of pipeline I is fixed at the blow vent in lower pressure tanks 2,
The other end of pipeline I is connected with first interface of tee tube 21, is connected on the inside of the induction end and pipeline I of baroceptor II 19
It is logical；Gas outlet can be set in lower pressure tanks 2, drain tap 7 is set on corresponding gas outlet, being convenient for will be in lower pressure tanks 2
Gas drain；
There are two blow vents for setting on high pressure gas holder 13, and one end of pipeline II is fixed on one of them on high pressure gas holder 13
At blow vent, the other end of pipeline II is connected with second interface line of tee tube 21；The induction end of baroceptor III 20 with
It is connected on the inside of pipeline II；
One end of high-pressure hose 1 is fixed on flange 6, the other end of high-pressure hose 1 and the third interface of tee tube 21
It is connected；Baroceptor I 14 is arranged close on the high-pressure hose 1 of 21 side of tee tube, the induction end of baroceptor I 14 with
The inside of high-pressure hose 1 is connected；
Heating wire 18 spirals in the inner wall of lower pressure tanks 2 and high pressure gas holder 13, and temperature sensor 15 and heating wire 18 are not
It is in contact；
Before use, external inflation or pressurizing device are connected with air inlet pipe 8, and Open valve 7, so that high pressure gas holder 13
Interior a certain amount of high pressure gas of storage, is then shut off valve 7, and disconnect the company of external inflation or pressurizing device and air inlet pipe 8
It connects；
This detection device can be placed at this time to transformer oil storage, and by high-pressure hose 1 by flange 6 with
Capsule is connected；Heating temperature can be can be set by setting button with the switch of open detection device at this time, determine heating temperature
After degree, arm processor control heating wire 18 heats lower pressure tanks 2 and high pressure gas holder 13, and temperature sensor 15 is adopted in real time
Collect the temperature value in lower pressure tanks 2 and high pressure gas holder 13, and temperature value is fed back into arm processor, if temperature passes
When the temperature value that sensor 15 feeds back to arm processor is equal to preset value, arm processor controls heating wire 18 and stops heating, together
When arm processor acquisition baroceptor II 19 and baroceptor III 20 feed back the pressure value that comes, and will current temperature
Pressure data under degree is stored into memory；Wherein baroceptor II 19 collects the pressure of lower pressure tanks 2 under Current Temperatures
Strong numerical value, baroceptor III 20 collect the pressure value of high pressure gas holder 13 under Current Temperatures；
Then arm processor control solenoid valve II 23 is opened, and the gas in high pressure gas holder 13 is followed by pipeline II, threeway
Pipe 21 and high-pressure hose 1, and enter in the capsule of transformer oil storage, when baroceptor I 14 feeds back to arm processor
Pressure value be equal to preset value when, arm processor control solenoid valve II 23, the gas injection process into capsule of high pressure gas holder 13 can
To open the temperature value after the guarantee high pressure gas holder 13 of heating wire 18 is deflated as defined preset value, and closing electromagnetism
When valve II 23, memory stores the pressure value of baroceptor III 20 at this time, the pressure difference before and after being deflated by high pressure gas holder 13
The gas pressure intensity of available injection capsule；The pressure value of baroceptor I 14 is the pressure value in capsule at this time；
Baroceptor I 14 acquires the pressure value of capsule in real time, and collected pressure data is fed back at ARM
Device is managed, under the conditions of the different time sections temperature difference is biggish, the gas pressure intensity of capsule will generate biggish difference, if gas
When the pressure value that pressure sensor I 14 feeds back to arm processor is greater than early warning value, arm processor controls solenoid valve I 16 and opens,
Gas in capsule flows into lower pressure tanks 2, until baroceptor I 14 feeds back to the pressure value etc. of arm processor
When preset value, arm processor controls solenoid valve I 16 and closes, if baroceptor I 14 feeds back to the pressure of arm processor
When numerical value is less than early warning value, arm processor controls solenoid valve II 23 and opens, until baroceptor I 14 feeds back to arm processor
Pressure value be equal to preset value until；
After reaching the time that detection terminates, timer can be sent to the signal that arm processor terminates, arm processor control
Heating wire 18 starts, until reach preset temperature position, then ARM processing receives high pressure gas holder 13 and lower pressure tanks 2
Pressure value, and recorded by memory；Pressure difference after can be detected at this time；
Pressure difference of the pressure difference with after when by obtains the pressure change of capsule entirety, while being tied according to detection
The temperature of baroceptor I 14 acquires after beam pressure data and independent detection environment, by determining that formula PV=nRT calculates plastic emitting
Capsule whether there is the case where gas leakage, and P is capsule pressure, and V is the volume of capsule, and n is the amount of substance, and R is gas constant, and T is exhausted
To temperature；
Pressure reducing valve 24: can be by the way that the blowing pressure value is adjusted manually；
Display 4 can show corresponding parameter；
After detection, arm processor, which can control loudspeaker 3, can issue the prompting that detection terminates；
Quick coupling 9 can access with external inflation or pressurizing device in order to high pressure gas holder 13 and be that high pressure gas holder 13 adds
Pressure；
Insulating layer can prevent 18 heating process heat of heating wire toward external diffusion；
Check valve 17 I is arranged on the segment pipe I between tee tube 21 and solenoid valve I 16, in the control of check valve 17 I
Under, gas can only be flowed into lower pressure tanks 2；One section of pipe between tee tube 21 and solenoid valve II 23 is arranged in check valve 22 II
On road II, under the control of check valve 22 II, the gas in high pressure gas holder 13 can only be flowed outwardly；
Solenoid valve I 16, heating wire 18, solenoid valve II 23 are connected by different bang-bang circuits with arm processor,
The gate end b pin of relay K and corresponding solenoid valve I 16, heating wire 18 or solenoid valve II 23 in each bang-bang circuit
One input terminal is connected；Another input terminal of solenoid valve I 16, heating wire 18 or solenoid valve II 23 and the cathode of power module 11
It is connected；
It can be in order to the charging work of power module 11 by external charger.
Claims (7)
1. a kind of transformer leak test automatic detection device, it is characterised in that: including lower pressure tanks (2), power module (11), master control
Module (12), high pressure gas holder (13), shell (10), solenoid valve I (16), solenoid valve II (23), pressure reducing valve (24), air inlet pipe (8),
Baroceptor I (14), baroceptor II (19), baroceptor III (20) and flange (6)；
The main control module (12) is mainly by circuit board and integrated arm processor, memory and timing on circuit boards
Device composition；
Lower pressure tanks (2), power module (11), main control module (12) and the high pressure gas holder (13) is installed in shell (10)
It is interior；Loudspeaker (3), display (4) and control button (5) are installed outside the shell (10)；
The lower pressure tanks (2) are connected by pipeline I with first interface of tee tube (21)；The solenoid valve I (16)
It is mounted on the segment pipe I between lower pressure tanks (2) and tee tube (21)；The baroceptor II (19) is mounted on low
On the segment pipe I calmed the anger between tank (2) and solenoid valve I (16)；
The high pressure gas holder (13) is connected by pipeline II with second interface of tee tube (21)；The solenoid valve II
(23) it is mounted on the segment pipe II between high pressure gas holder (13) and tee tube (21)；The pressure reducing valve (24) is mounted on electricity
On a segment pipe II between magnet valve II (23) and high pressure gas holder (13)；The baroceptor III (20) is mounted on pressure reducing valve
(24) on the segment pipe II between high pressure gas holder (13)；One end of the air inlet pipe (8) is connected with high pressure gas holder (13)
It is logical；Valve (7) are installed in the air inlet pipe (8)；
The third interface of the tee tube (21) is connected by high-pressure hose (1) with flange (6)；The baroceptor
I (14) are mounted on one section of high-pressure hose between flange (6) and tee tube (21)；
Heating wire (18) and temperature sensor (15) are mounted on the inside of the lower pressure tanks (2) and high pressure gas holder (13)；
The loudspeaker (3), display (4), control button (5), baroceptor I (14), temperature sensor (15), solenoid valve
I (16), heating wire (18), baroceptor II (19), baroceptor III (20), solenoid valve II (23), memory, timer
It is connected with arm processor；The loudspeaker (3), display (4), control button (5), baroceptor I (14), temperature pass
Sensor (15), solenoid valve I (16), heating wire (18), baroceptor II (19), baroceptor III (20), solenoid valve II
(23), arm processor, memory, timer are electrically connected with power module (11).
2. transformer leak test automatic detection device according to claim 1, it is characterised in that: the main control module (12)
Using ARM7 embedded main board.
3. transformer leak test automatic detection device according to claim 1, it is characterised in that: the air inlet pipe (8)
Quick coupling (9) are installed on the other end.
4. transformer leak test automatic detection device according to claim 1, it is characterised in that: the lower pressure tanks (2)
Insulating layer is cased with on high pressure gas holder (13).
5. transformer leak test automatic detection device according to claim 1, it is characterised in that: the pipeline I is equipped with
Check valve I (17)；The pipeline II is equipped with check valve II (22).
6. transformer leak test automatic detection device according to claim 1, it is characterised in that: the solenoid valve I (16),
Heating wire (18), solenoid valve II (23) are connected by bang-bang circuit with arm processor；The bang-bang circuit master
It to be made of relay K and triode Q；The emitter of the triode Q and the cathode of power module (11), be connected, three
The base stage of pole pipe Q is connected with the output interface of arm processor, the control terminal c pin phase of the collector and relay K of triode Q
Even, the control terminal d pin of relay K is connected with the anode of power module (11), the gate end a pin and power supply mould of relay K
The anode of block (11) is connected.
7. transformer leak test automatic detection device according to claim 1, it is characterised in that: the power module (11)
For lithium battery group；The shell (10) is externally provided with charging interface；The charging interface is electrically connected with power module (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822252965.6U CN209432378U (en) | 2018-12-29 | 2018-12-29 | Transformer leak test automatic detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822252965.6U CN209432378U (en) | 2018-12-29 | 2018-12-29 | Transformer leak test automatic detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209432378U true CN209432378U (en) | 2019-09-24 |
Family
ID=67974719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822252965.6U Active CN209432378U (en) | 2018-12-29 | 2018-12-29 | Transformer leak test automatic detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209432378U (en) |
-
2018
- 2018-12-29 CN CN201822252965.6U patent/CN209432378U/en active Active
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