CN103823130A - Ventilating and heating system tester - Google Patents
Ventilating and heating system tester Download PDFInfo
- Publication number
- CN103823130A CN103823130A CN201210464382.4A CN201210464382A CN103823130A CN 103823130 A CN103823130 A CN 103823130A CN 201210464382 A CN201210464382 A CN 201210464382A CN 103823130 A CN103823130 A CN 103823130A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 22
- 238000009423 ventilation Methods 0.000 claims description 25
- 238000010792 warming Methods 0.000 claims description 7
- 238000013024 troubleshooting Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The invention belongs to a helicopter environment control system, and particularly relates to a tester for carrying out power-on checking on a ventilating and heating system. The system comprises a double-pole double-throw switch S1, a single-pole double-throw switch (S2) and diode indicating lamps (L1), (L2) and (L3). By the adoption of the tester, the working performance indicators of a ventilating and heating system can be checked only by connecting the tester with a cable plug on a machine under the situation in which no component exists on a helicopter or a component is missed on the helicopter. Checking is comprehensive, operation is simple and convenient, the problem of complex wiring is solved, time is saved, the work efficiency of power-on checking is improved, and the troubleshooting time is shortened.
Description
Technical Field
The invention belongs to an environment control system of a helicopter, and particularly relates to a tester applied to a ventilation and heating system for conducting power-on inspection.
Background
The ventilation and warming system adjusts the temperature in the cockpit by utilizing the mixture of the exhaust of the engine and the natural wind, and provides a comfortable and safe environment for a driver in any severe environment. When the system is electrified and checked in a final assembly workshop in the prior production technology, the electrification of the parts on the helicopter is directly carried out under the condition that no electric circuit on the helicopter is determined, and the damage phenomenon of the parts is easily caused; meanwhile, due to the fact that the components are wide in distribution and multiple in control pipelines, the simulation work of the switching value and part of analog quantity signals cannot be met by utilizing a wiring mode, the operation mode is complex, the time spent is long, the short circuit phenomenon on the machine is easily caused by misoperation of human factors, and great potential safety hazards exist.
Disclosure of Invention
The technical problems to be solved by the invention are as follows:
the tester adopts a simple switch and a diode indicator light to connect the tester to a relay, an electric valve and a shut-off valve on the machine, does not need the power-on work of a product on the machine, can simulate the working mode of the product in the power-on process at the cable plug on the machine of a connecting part product, can quickly detect whether the machine-mounted finished product electric circuit connected with the system has a fault or not, ensures that the ventilation and heating system on the machine works normally, and avoids potential safety hazards caused by manual operation errors.
The technical scheme of the invention is as follows:
a tester for a ventilation and warming system comprises a double-pole double-throw switch S1, a single-pole double-throw switch S2, diode indicator lamps L1, L2 and L3.
Wherein, the 1 end of S1 is connected with the electric valve full-close signal input end on the ventilation heating system, the 2 end of S1 is connected with the electric valve full-open signal input end on the ventilation heating system, and the 3 end of S2 is connected with the power supply signal input end of the temperature relay on the ventilation heating system. When the ends 1 and 11 and the ends 2 and 21 of the S1 are connected, the state of the valve is simulated to be in a full-closed state, a signal is output to the valve opening signal input end of the L1 through the end 11 of the S1, an electric closed loop is finally formed with a power ground, and meanwhile, an electric valve circuit full-open signal is output to the end 21 of the S1 through the end 2 of the S1 and then fed back to the ventilation and heating system. When the ends 1 and 12 and the ends 2 and 22 of the S1 are connected, the full-open state of the valve is simulated, and a signal is output from the end 1 of the S1 to the end 12 of the S1 and is fed back to the ventilation and heating system; meanwhile, the signal is output to the terminal 22 of the terminal S1 through the terminal 2 of the terminal S1 and flows into the terminal L2, and finally forms an electrically closed loop with the power ground. When the ends 3 and 31 of the S2 are in the connection state, the working contact of the relay in the 'normal' working mode of the environmental control system is simulated, and the signal outputs the normal function signal of the temperature relay through the end 31 of the S2; when the terminals 3 and 32 of the terminal S2 are in the on state, the operating contacts of the other set of the relay in the "over-temperature" operating mode of the ventilation and warming system are simulated, and the signal outputs an over-temperature function signal through the terminal 32 of the terminal S2. And after receiving the signal input, the signal input end of the shutoff valve outputs the signal to L3 to form an electric closed loop with the signal output end of the shutoff valve.
The invention has the beneficial effects that:
the application of the tester solves the problem that the working performance index of the ventilation and heating system can be checked only by connecting the tester with the cable plug on the machine under the condition that no part or no part exists on the machine. The inspection is comprehensive, and easy operation, convenience have solved the loaded down with trivial details problem of wiring, save time, have promoted the work efficiency of circular telegram inspection work and the time of troubleshooting.
Drawings
FIG. 1 is a schematic diagram of a tester for a ventilation and heating system, wherein a is a fully-closed signal input end of an electric valve, b is a fully-opened signal input end of the electric valve, c is a fully-opened signal output end of the electric valve, d is a fully-closed signal output end of the electric valve, e is a power ground, f is a normal signal input end of a temperature relay, g is an overtemperature signal output end of the temperature relay, h is a normal signal output end of the temperature relay, i is a power signal input end of a turn-off valve, and j is a signal ground.
Detailed Description
A ventilation heating system tester comprises a double-pole double-throw switch S1, a single-pole double-throw switch S2, diode indicator lamps L1, L2 and L3; wherein,
and the 1 end of S1 is connected with the full-closed signal input end of the electric valve on the ventilation and heating system, the 2 end of S1 is connected with the full-open signal input end of the electric valve on the ventilation and heating system, and the 3 end of S2 is connected with the power supply signal input end of the temperature relay on the ventilation and heating system. When the ends 1 and 11 and the ends 2 and 21 of the S1 are connected, the state of the valve is simulated to be in a full-closed state, a signal is output to the valve opening signal input end of the L1 through the end 11 of the S1, an electric closed loop is finally formed with a power ground, and meanwhile, an electric valve circuit full-open signal is output to the end 21 of the S1 through the end 2 of the S1 and then fed back to the ventilation and heating system. When the ends 1 and 12 and the ends 2 and 22 of the S1 are connected, the full-open state of the valve is simulated, and a signal is output from the end 1 of the S1 to the end 12 of the S1 and is fed back to the ventilation and heating system; meanwhile, the signal is output to the terminal 22 of the terminal S1 through the terminal 2 of the terminal S1 and flows into the terminal L2, and finally forms an electrically closed loop with the power ground. When the ends 3 and 31 of the S2 are in the connection state, the working contact of the relay in the 'normal' working mode of the environmental control system is simulated, and the signal outputs the normal function signal of the temperature relay through the end 31 of the S2; when the terminals 3 and 32 of the terminal S2 are in the on state, the operating contacts of the other set of the relay in the "over-temperature" operating mode of the ventilation and warming system are simulated, and the signal outputs an over-temperature function signal through the terminal 32 of the terminal S2. And after receiving the signal input, the signal input end of the shutoff valve outputs the signal to L3 to form an electric closed loop with the signal output end of the shutoff valve.
When using this tester, be connected to temperature relay cable plug, electronic valve plug, shutoff valve plug on the machine with this tester, alright realize following function:
temperature control function check
When S1 is set to be in a full-off position, S2 is set to be in a normal position, and the temperature switch is set to be in a highest temperature position, the tester A receives a 28V direct current signal output by a product on the machine, an indicator lamp L1 is turned on, an indicator lamp L3 is turned on, and the automatic heating function check is carried out on the machine. When S1 is placed at the full-open position, the indicator lamp L1 is turned off, the tester B receives a 28V direct current signal output by the product on the tester, the indicator lamp L2 is turned on, and the indicator lamp L3 is turned off; when S1 is placed in the "full off" position, the "off" indicator light L2 is turned off.
When the temperature of the cab on the airplane is high, the electric valve in the tester receives a closing signal, the point A receives a 28V signal at the moment, the L1 lamp is turned on, the S1 is placed at the full-open position, and the L1 lamp is turned off. When the temperature of the cockpit is low, the electric valve in the tester receives an opening signal, the point B receives a 28V signal, the L2 lamp is turned on, the S2 is placed at a full-off position, and the L2 lamp is turned off.
Over-temperature protection power-on inspection
Switch S2 is placed in the "over temperature" position, at which time the L1 lamp is extinguished.
Claims (1)
1. A tester of a ventilation and heating system is characterized by comprising a double-pole double-throw switch S1, a single-pole double-throw switch (S2), diode indicator lamps (L1), (L2) and (L3); wherein,
the (1) end of the (S1) is connected with the fully closed signal input end of the electric valve on the ventilation and warming system, the (2) end of the (S1) is connected with the fully opened signal input end of the electric valve on the ventilation and warming system, and the (3) end of the (S2) is connected with the normal signal input end of the temperature relay on the ventilation and warming system; when the (1) end, the (11) end and the (2) end and the (21) end of the (S1) are in the connected state, the 'fully-closed' state of the valve is simulated, signals are output to the valve opening signal input end of the (L1) through the (11) end of the (S1), finally, an electric closed loop is formed with a power ground, and meanwhile, the signals are output to the (21) end of the (S1) through the (2) end of the (S1) and then electric valve fully-open signals are output; when the end (1), (12) and the end (2), (22) of the (S1) are connected, the full-open state of the valve is simulated, and the signal is output from the end (1) of the (S1) to the end (12) of the (S1) to output an electric valve full-close signal; meanwhile, the signal is output to the terminal (22) of the terminal (S1) through the terminal (2) of the terminal (S1) and then flows into the terminal (L2), and finally, an electric closed loop is formed with a power ground; when the (3) end and the (31) end of the (S2) are in the connection state, the working contact of the relay in the 'normal' working mode of the analog ring control system is simulated, the signal outputs a normal function signal through the (31) end of the (S20), when the (3) end and the (32) end of the (S2) are in the connection state, the working contact of the other group of the relay in the 'overtemperature' working mode of the analog ventilation heating system is simulated, the signal outputs an overtemperature function signal through the (32) end of the (S2), and the signal input end of the shutoff valve receives the signal input and outputs the signal to the (L3) to form an electric closed loop together with the signal of the shutoff valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464382.4A CN103823130B (en) | 2012-11-16 | 2012-11-16 | A kind of ventilation heating system exerciser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464382.4A CN103823130B (en) | 2012-11-16 | 2012-11-16 | A kind of ventilation heating system exerciser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103823130A true CN103823130A (en) | 2014-05-28 |
| CN103823130B CN103823130B (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210464382.4A Active CN103823130B (en) | 2012-11-16 | 2012-11-16 | A kind of ventilation heating system exerciser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103823130B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09222445A (en) * | 1996-02-19 | 1997-08-26 | Hitachi Ltd | Monitoring and control device of power system, and oscillographed waveform data collection method |
| CN101887270A (en) * | 2010-06-29 | 2010-11-17 | 无锡隆盛科技有限公司 | Circuit of aging test stand for engine electronic control units |
| CN101916108A (en) * | 2010-08-31 | 2010-12-15 | 上海交通大学 | Automation device for use in civil aircraft environment control system function test |
| US20120109547A1 (en) * | 2010-10-29 | 2012-05-03 | GM Global Technology Operations LLC | Comprehensive method of electrical fluid heating system fault detection and handling |
-
2012
- 2012-11-16 CN CN201210464382.4A patent/CN103823130B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09222445A (en) * | 1996-02-19 | 1997-08-26 | Hitachi Ltd | Monitoring and control device of power system, and oscillographed waveform data collection method |
| CN101887270A (en) * | 2010-06-29 | 2010-11-17 | 无锡隆盛科技有限公司 | Circuit of aging test stand for engine electronic control units |
| CN101916108A (en) * | 2010-08-31 | 2010-12-15 | 上海交通大学 | Automation device for use in civil aircraft environment control system function test |
| US20120109547A1 (en) * | 2010-10-29 | 2012-05-03 | GM Global Technology Operations LLC | Comprehensive method of electrical fluid heating system fault detection and handling |
Non-Patent Citations (1)
| Title |
|---|
| 李家云 等: "直升机发动机数字控制***简述", 《直升机技术》 * |
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| CN103823130B (en) | 2016-09-14 |
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