CN220794644U - Test bed of TTK3-5.0DD locomotive air conditioner - Google Patents
Test bed of TTK3-5.0DD locomotive air conditioner Download PDFInfo
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- CN220794644U CN220794644U CN202322561249.7U CN202322561249U CN220794644U CN 220794644 U CN220794644 U CN 220794644U CN 202322561249 U CN202322561249 U CN 202322561249U CN 220794644 U CN220794644 U CN 220794644U
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 36
- 210000001503 joint Anatomy 0.000 claims abstract description 31
- 238000007639 printing Methods 0.000 claims description 13
- 230000001012 protector Effects 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000005485 electric heating Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The utility model discloses a test bed of a TTK3-5.0DD locomotive air conditioner, wherein a main circuit of the test bed is a parallel circuit formed by a first group of circuits, a second group of circuits, a third group of circuits and a fourth group of circuits, a contactor K1 is arranged on the first group of circuits, the output end of the contactor K1 is in butt joint with thermal relays Q1 and Q2 in a parallel manner, a thermal relay Q3 is arranged on the second group of circuits, the output end of the thermal relay Q3 is in butt joint with a contactor K2, a circuit breaker Q4 is arranged on the third group of circuits, and the output end of the circuit breaker Q4 is in butt joint with the contactor K3; the fourth group of circuits provides power for a control circuit of the test bed, the input of a controller PLC of the control circuit comprises a touch screen RS485 control signal, an auxiliary interlocking output signal and the like, and the output comprises three contactor actuation signals respectively abutting against contactor coils K1, K2 and K3 and fault signals. The test bed is convenient for the daily operation and fault diagnosis of the maintainer, greatly improves the overhaul quality and the overhaul speed, and has higher efficiency value.
Description
Technical Field
The utility model belongs to the field of locomotive overhaul equipment, and particularly relates to a test bed of a TTK3-5.0DD locomotive air conditioner.
Background
The TTK3-5.0DD locomotive air conditioner is one of important equipment on an SS locomotive, and the functional devices mainly comprise a condensing fan, a compressor, a ventilator, a temperature relay and an electric heater, wherein the temperature relay is an electric component for measuring temperature in a TTK3-5.0DD unit. The TTK3-5.0DD locomotive air conditioner has the functions of refrigerating and heating, and provides a comfortable driving environment for crews. The Lanzhou western locomotive service section is a unit for automatically overhauling locomotive air conditioners for a few advanced locomotives of the whole locomotive, and in recent years, a large number of locomotive air conditioners are overhauled in an overhauling workshop of the vehicle, so that a plurality of locomotive air conditioner overhauling technologies are accumulated. TTK3-5.0DD locomotive air conditioner has the following two working modes:
(1) Cooling mode: under the refrigeration working condition, the heat quantity of the refrigerant in the evaporator in the indoor air is changed into a gaseous state, so that the temperature of the mixed air is reduced, and the compressor sucks the gasified refrigerant from the evaporator and then compresses the gasified refrigerant into a condenser; in the condenser, the high-temperature gaseous refrigerant is forcedly cooled into liquid by condensing wind, and the condensing wind absorbing heat is discharged outdoors through a centrifugal fan; the liquid refrigerant enters the evaporator through the capillary tube, and the whole refrigerant circulation is completed. The refrigerant completes the conversion between high pressure and low pressure in the capillary tube, when the surface temperature of the evaporator is lower than the dew point of air, the moisture in the air is condensed into water on the surface of the evaporator, and the water is collected by the water receiving disc and then discharged out of the room through the water draining pipe at the bottom.
(2) Heating mode: under the heating working condition, the heating is realized by heating the mixed wind by the electric heater.
In order to further improve the overhauling level of the TTK3-5.0DD locomotive air conditioner, a locomotive air conditioner test bed needs to be developed, various current, voltage and temperature data during operation of the air conditioner can be visually displayed, overhauling opinions are provided, and overhauling staff can overhaul the TTK3-5.0DD locomotive air conditioner with high quality and high efficiency.
Disclosure of utility model
The utility model aims to solve the problem that a TTK3-5.0DD air conditioner unit cannot carry out complete machine performance maintenance, and provides a test bed of a TTK3-5.0DD locomotive air conditioner.
The utility model is realized in such a way that a TTK3-5.0DD locomotive air conditioner test bed is provided, wherein the TTK3-5.0DD locomotive air conditioner comprises a condensing fan, a compressor, a ventilator, a temperature relay, a high-voltage pressure protector, a low-voltage pressure protector and an electric heater, the test bed comprises an electric circuit and a cabinet body for assembling the electric circuit, and the electric circuit comprises a main circuit and a control circuit; wherein,
The main circuit is a parallel circuit formed by a first group of circuits, a second group of circuits, a third group of circuits and a fourth group of circuits, a contactor K1 is arranged on the first group of circuits, the output end of the contactor K1 is in butt joint with the thermal relay Q1 and the thermal relay Q2 in a parallel manner, and the output end of the thermal relay Q1 is used for butt joint with the compressor and the output end of the thermal relay Q2 is used for butt joint with the condensing fan;
the second group of lines are provided with a thermal relay Q3, the output end of the thermal relay Q3 is in butt joint with a contactor K2, and the output end of the contactor K2 is used for butt joint with a ventilator;
a circuit breaker Q4 is arranged on the third group of lines, the output end of the circuit breaker Q4 is in butt joint with a contactor K3, and the contactor K3 provides a working power supply for the electric heater;
The fourth group of lines are AC220V power lines consisting of phase lines L and zero lines N, QS 2P circuit breakers are arranged on the fourth group of lines, and the output of the circuit breakers is connected with a wiring terminal block in a butt joint mode;
The control circuit comprises an AC220V-DC24V module, a touch screen serving as an upper computer and a controller PLC serving as a lower computer, wherein the wiring terminal row is in butt joint with the AC220V-DC24V module, the input of the controller PLC comprises a touch screen RS485 control signal, auxiliary interlocking output signals of the thermal relays Q1, Q2 and Q3, a high-voltage protection signal, a low-voltage protection signal and a temperature relay signal, and the output of the controller PLC comprises three contactor suction signals respectively in butt joint with the contactor coils of the contactors K1, K2 and K3 and fault signals in butt joint with fault indication lamps.
Preferably, in the control circuit, the touch screen is a touch screen with a man-machine interaction interface; the controller is a Siemens S7-200 series CPU224 programmable logic controller.
Preferably, the test stand further comprises a printer; the touch screen is connected with the printer through signals, and the wiring terminal block is abutted to the printer.
Preferably, the input ends of the thermal relays Q1, Q2 and Q3, the input end of the contactor K3, the high-voltage protection signal input end, the low-voltage protection signal input end, the signal input end of the temperature relay and the grounding end of the locomotive air conditioner are integrated on the aviation plug.
Preferably, the cabinet body is on the left of the cabinet body and is provided with an electric circuit cabinet, a printing cabinet is arranged in the middle of the cabinet body, a cable storage cabinet is arranged on the right of the cabinet body, the electric circuit cabinet is internally used for assembling electric circuits and is externally provided with a display control area, the middle of the printing cabinet is provided with a printing area, the middle lower part of the printing cabinet is provided with an aviation plug interface area, and the cable storage cabinet is internally used for storing connecting cables and is externally provided with a control panel area for assembling a touch screen.
Preferably, the test stand further comprises a spare socket, and the wiring terminal block is abutted with the spare socket.
Compared with the defects and shortcomings of the prior art, the utility model has the following beneficial effects:
1. the circuit is modularized and convenient to maintain
The test bed circuit consists of a main circuit and a control circuit. The main circuit mainly comprises an adaptive plug group and air switches. The control circuit is provided with electrical fittings such as knob switches, circuit breakers, contactors, relays, a power supply, a CPU, instrument display circuits and the like.
2. Intelligent friendly and convenient to use
The interactive touch screen is used for control input and information display, and the system has an online printing system and prints the relevant test data of the locomotive air conditioner in real time.
3. Excellent performance
The test bed can meet the requirements of the whole performance test of the TTK3-5.0DD locomotive air conditioner, and can perform performance test on a ventilator, a condensing fan, a compressor, an electric heating body, temperature protection and high-low pressure protection. Meanwhile, various current and voltage data during operation of the air conditioner can be visually displayed through the touch screen, and convenience is brought to daily operation and fault diagnosis of maintenance personnel. The test bed fully plays the advantages brought by automatic equipment, greatly improves the maintenance quality and the maintenance speed, has higher efficiency value, has an intelligent real-time detection technology, and fills the blank of the domestic direct current locomotive air conditioner maintenance equipment.
Drawings
FIG. 1 is a schematic diagram of the main circuit in the electrical circuit of the test stand of the present utility model;
FIG. 2 is a schematic diagram of the control circuit in the electrical circuit of the test stand of the present utility model;
FIG. 3 is a schematic diagram of the circuit configuration of the control circuit and various sensors in the electrical circuit of the test stand of the present utility model in an assembled state;
FIG. 4 is a schematic diagram of the circuit interfacing structure of a TTK3-5.0DD locomotive air conditioner with an aviation plug in the test stand of the present utility model;
FIG. 5 is a schematic view of the structure of the cabinet of the test stand of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Fig. 1 to 5 show, wherein fig. 1 is a schematic structural diagram of a main circuit in an electrical circuit of a test stand according to the present utility model; FIG. 2 is a schematic diagram of the control circuit in the electrical circuit of the test stand of the present utility model; FIG. 3 is a schematic diagram of the circuit configuration of the control circuit and various sensors in the electrical circuit of the test stand of the present utility model in an assembled state; FIG. 4 is a schematic diagram of the circuit interfacing structure of a TTK3-5.0DD locomotive air conditioner with an aviation plug in the test stand of the present utility model; FIG. 5 is a schematic view of the structure of the cabinet of the test stand of the present utility model.
The embodiment of the utility model discloses a test bed of a TTK3-5.0DD locomotive air conditioner, which is shown in figure 1, wherein the TTK3-5.0DD locomotive air conditioner comprises a condensing fan M2, a compressor M3, a ventilator M1, a temperature relay FT, a high-pressure protector FHP, a low-pressure protector FLP and an electric heater R, and comprises an electric circuit and a cabinet body for assembling the electric circuit, wherein the electric circuit comprises a main circuit and a control circuit; the main circuit is a parallel circuit formed by a first group of circuits, a second group of circuits, a third group of circuits and a fourth group of circuits;
The first group of lines are provided with a contactor K1 for providing power for the operation of the condensing fan M2 and the compressor M3, the output end of the contactor K1 is connected with the heat relay Q1 and the heat relay Q2 in a parallel manner, the output end of the heat relay Q1 is connected with the compressor M3 for protecting the output end of the compressor M3 and the output end of the compressor Q2 from being connected with the condensing fan M2 for protecting the motor of the condensing fan M2; the second group of lines are provided with a thermal relay Q3, the output end of the thermal relay Q3 is in butt joint with a contactor K2, the output end of the contactor K2 is in butt joint with a ventilator M1 to provide power, and the thermal relay Q3 is used for protecting a ventilator M1 motor; a circuit breaker Q4 for isolating the power supply of the electric heater R is arranged on the third group of lines, the output end of the circuit breaker Q4 is in butt joint with a contactor K3, and the contactor K3 is used for butt joint with the electric heater R;
The fourth group of lines are AC220V power lines consisting of phase lines L and zero lines N, QS 2P circuit breakers are arranged on the fourth group of lines, and the output of the circuit breakers is connected with a wiring terminal row in a butt joint mode and used for providing power for an AC220V-DC24V module;
The control circuit comprises an AC220V-DC24V module, a touch screen serving as an upper computer and a controller PLC serving as a lower computer, wherein the output end of the wiring terminal row is connected with the AC220V-DC24V module in a butt joint mode, a 24V power supply provided by the main circuit provides a DC24V power supply for the control circuit through a 2P breaker Q5, the input of the controller PLC comprises a touch screen RS485 control signal connected with the touch screen in a butt joint mode, auxiliary interlocking output signals connected with the electromagnetic relays Q1, Q2 and Q3, a high-voltage protection signal connected with the high-voltage protector FHP, a low-voltage protection signal connected with the low-voltage protector FLP and a temperature relay FT signal connected with the temperature relay FT, and the output of the controller PLC comprises three-way contactor sucking signals connected with the contactor coils of the contactors K1, K2 and K3 respectively and a fault signal connected with the fault indicating lamp.
In a further implementation, in order to provide the test stand with a printing function, the test stand preferably further comprises a printer; the touch screen is connected with the printer through signals, and the output end of the wiring terminal block is connected with the printer in a butt joint mode to provide power for the printer.
In a further implementation process, in order to enable the test stand to have a socket function, the test stand further comprises a standby socket arranged on the cabinet body, and the wiring terminal strip is abutted with the standby socket.
In the embodiment of the utility model, the test stand is powered by a three-phase five-wire system, wherein three-phase 380V is used for supplying power to a main circuit unit (a first group of lines, a second group of lines and a third group of lines), 220V (a fourth group of lines) formed by phase lines and zero lines is used for supplying power to a printer, a standby socket, an AC220V-DC24V module and the like, and the AC220V-DC24V module is used for supplying power to a control circuit.
In the embodiment of the utility model, in the control circuit, the touch screen is a touch screen with a man-machine interaction interface; the controller is a Siemens S7-200 series CPU224 programmable logic controller (CPUS 7-224), namely a PLC CPU-224, and a touch screen control program and a PLC control program can be written by using programming software. In the embodiment of the utility model, the control circuit mainly adopts an intelligent man-machine interaction device touch screen and a programmable logic controller, as shown in fig. 2, the PLC CPU224 shares 14 input points (I0.0-I0.7, I1.0-I1.5) and 10 output points (Q0.0-Q0.7, Q1.0-Q1.1) (only the used point is drawn in fig. 2, and the unused point is omitted). When the system works, taking a heating program as an example, a client selects a heating test program by using the touch screen, after the PLC receives a touch screen instruction, a PLC output point Q0.1 outputs a DC+24V driving signal, a ventilator M1 contactor K2 is driven to be sucked and connected with a ventilator M1 main loop, a locomotive air conditioner starts ventilation, Q0.0 outputs a DC+24V driving signal after no ventilation abnormality is detected for 5 seconds, an electric heating contactor K3 is driven to be connected with an electric heating main loop, the locomotive air conditioner enters a heating mode for test, in the test process, such as electric heating abnormality and overhigh temperature, a temperature protection relay acts, a PLC input point I1.2 has no DC+24V signal input, Q0.0 stops outputting after the PLC monitors an action signal, meanwhile Q0.7 outputs a fault signal to light a fault signal, and the touch screen displays a fault action part preliminary maintenance fault location point and gives guidance.
In practical application, each current and voltage information needs to be displayed on the touch screen in real time, so as shown in fig. 3, the control circuit further comprises an EM231 analog conversion chip for converting the current and voltage signals detected by each sensor (current sensor and voltage sensor) into specific values for PLC analysis and processing, and then transmitting the data to the touch screen through an RS485 communication cable for displaying each current and voltage information.
In a further implementation process, in order to make the plugging of the test stand and the locomotive air conditioner more integrated and simplified, and prolong the service life of the cable, preferably, as shown in fig. 4, the input ends of the thermal relays Q1, Q2 and Q3, the input end of the contactor K3, the input end of the high-voltage protection signal of the controller PLC, the input end of the low-voltage protection signal, the input end of the temperature relay FT signal, and the ground connection end of the locomotive air conditioner are integrated on the aviation plug. Specifically, pins 1-20 are arranged on the aviation plug, wherein the output end of the thermal relay Q1 is connected with the compressor M3 through pins 1-3, the output end of the thermal relay Q2 is connected with the condensing fan M2 through pins 4-6, the output end of the contactor Q2 is connected with the ventilator M1 through pins 7-9, the input ends of the high-voltage protection signal and the low-voltage protection signal of the controller PLC are connected with the high-voltage pressure protector FHP and the low-voltage pressure protector FLP through pins 10, 11 and 18, the three five-wire power ground wires of the test bed are connected with the locomotive air conditioner through pins 12 to achieve grounding, the output end of the contactor K3 is connected with the electric heater R through pins 13-15, the output ends of the contactor K3 are empty pins, and the input end of the temperature relay FT signal of the controller PLC is connected with the temperature relay FT through pins 19 and 20.
In a further implementation process, for the test bed to be convenient to operate, use and maintain, preferably, as shown in fig. 5, the left side of the cabinet body is an electrical circuit cabinet 1, the middle is a printing cabinet 2, the right side is a cable storage cabinet 3, the interior of the electrical circuit cabinet is used for assembling electrical circuits, the exterior is a display control area, the middle of the printing cabinet is a printing area, the middle lower part is an aviation plug interface area, and the interior of the cable storage cabinet is used for storing connecting cables, and the exterior is a control panel area for assembling a touch screen. It is easy to understand that the display control area is sequentially arranged from top to bottom as a power supply area for controlling power supply, a control area for controlling and maintaining the PLC CPU224 and the EM231 analog-to-digital conversion chip, a thermal relay area equipped with a thermal relay, a contactor area equipped with a contactor, and a sensor area equipped with a current sensor and a voltage sensor. The printing area is used for assembling the printer, the aviation plug interface area is used for assembling the aviation plug, and the control panel area is used for assembling the touch screen. The cabinet body adopts a three-cabinet split design, has a neat and intensive structure, and is convenient to operate and maintain.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. The test bed of the TTK3-5.0DD locomotive air conditioner comprises a condensing fan, a compressor, a ventilator, a temperature relay, a high-pressure protector, a low-pressure protector and an electric heater, and is characterized by comprising an electric circuit and a cabinet body for assembling the electric circuit, wherein the electric circuit comprises a main circuit and a control circuit; wherein,
The main circuit is a parallel circuit formed by a first group of circuits, a second group of circuits, a third group of circuits and a fourth group of circuits, a contactor K1 is arranged on the first group of circuits, the output end of the contactor K1 is in butt joint with the thermal relay Q1 and the thermal relay Q2 in a parallel manner, and the output end of the thermal relay Q1 is used for butt joint with the compressor and the output end of the thermal relay Q2 is used for butt joint with the condensing fan;
the second group of lines are provided with a thermal relay Q3, the output end of the thermal relay Q3 is in butt joint with a contactor K2, and the output end of the contactor K2 is used for butt joint with a ventilator;
a circuit breaker Q4 is arranged on the third group of lines, the output end of the circuit breaker Q4 is in butt joint with a contactor K3, and the contactor K3 provides a working power supply for the electric heater;
The fourth group of lines are AC220V power lines consisting of phase lines L and zero lines N, QS 2P circuit breakers are arranged on the fourth group of lines, and the output of the circuit breakers is connected with a wiring terminal block in a butt joint mode;
The control circuit comprises an AC220V-DC24V module, a touch screen serving as an upper computer and a controller PLC serving as a lower computer, wherein the wiring terminal row is in butt joint with the AC220V-DC24V module, the input of the controller PLC comprises a touch screen RS485 control signal, auxiliary interlocking output signals of the thermal relays Q1, Q2 and Q3, a high-voltage protection signal, a low-voltage protection signal and a temperature relay signal, and the output of the controller PLC comprises three contactor suction signals respectively in butt joint with the contactor coils of the contactors K1, K2 and K3 and fault signals in butt joint with fault indication lamps.
2. The test stand of claim 1, wherein in the control circuit, the touch screen is a touch screen with a human-machine interaction interface; the controller is a Siemens S7-200 series CPU224 programmable logic controller.
3. The test stand of claim 1, wherein the test stand further comprises a printer; the touch screen is connected with the printer through signals, and the wiring terminal block is abutted to the printer.
4. The test stand according to claim 3, wherein the input ends of the thermal relays Q1, Q2 and Q3, the input end of the contactor K3, the input end of the high-voltage protection signal of the controller PLC, the input end of the low-voltage protection signal, the input end of the temperature relay signal and the ground connection end of the locomotive air conditioner are integrated on the aviation plug.
5. The test stand of claim 4, wherein the left side of the cabinet body is an electrical circuit cabinet, the middle is a printing cabinet, the right side is a cable storage cabinet, the interior of the electrical circuit cabinet is used for assembling electrical circuits, the exterior is a display control area, the middle of the printing cabinet is a printing area, the middle lower part is an aviation plug interface area, the interior of the cable storage cabinet is used for storing connecting cables, and the exterior is a control panel area for assembling a touch screen.
6. The test stand of claim 1 further comprising a back-up socket, said terminal block interfacing with the back-up socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322561249.7U CN220794644U (en) | 2023-09-21 | 2023-09-21 | Test bed of TTK3-5.0DD locomotive air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322561249.7U CN220794644U (en) | 2023-09-21 | 2023-09-21 | Test bed of TTK3-5.0DD locomotive air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN220794644U true CN220794644U (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322561249.7U Active CN220794644U (en) | 2023-09-21 | 2023-09-21 | Test bed of TTK3-5.0DD locomotive air conditioner |
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| Country | Link |
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| CN (1) | CN220794644U (en) |
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2023
- 2023-09-21 CN CN202322561249.7U patent/CN220794644U/en active Active
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