CN211314520U - Air compressor machine heat engine control device - Google Patents
Air compressor machine heat engine control device Download PDFInfo
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- CN211314520U CN211314520U CN201922346042.1U CN201922346042U CN211314520U CN 211314520 U CN211314520 U CN 211314520U CN 201922346042 U CN201922346042 U CN 201922346042U CN 211314520 U CN211314520 U CN 211314520U
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Abstract
The utility model relates to a technical field of rolling stock air compressor machine especially relates to an air compressor machine heat engine controlling means. The system comprises a power supply module, a protection module, a pressure control module, a motor control module, a no-load control module and a heat engine control module; the input end of the pressure control module is connected with the anode of the power supply module through the protection module, and the output end of the pressure control module is electrically connected with the motor control module in a one-way mode; the heat engine control module comprises a temperature control switch and a self-locking switch, and the self-locking switch is in control connection with the motor control module; the motor control module can realize the temperature control of the lubricating oil heat engine to be closed through the heat engine control module. The utility model discloses when guaranteeing that the air compressor machine can effectively prevent the emulsification of lubricating oil, avoid overuse heat engine, reduced the loss of heat engine, avoided the waste of the energy, and do not receive the influence of factors such as region, season, height above sea level of air compressor machine application, increased the reliability and the security that lubricating oil emulsification device was prevented to the air compressor machine, improved its using value.
Description
Technical Field
The utility model relates to a rolling stock air compressor machine technical field especially relates to an air compressor machine heat engine controlling means.
Background
An air compressor is a device for compressing air, and in the field of locomotives, in order to ensure the requirement of compressed air for a locomotive vehicle, the locomotive must be provided with the air compressor. And air compressor can be at the compressed air in-process, can be with the water analysis of in the air go out, when air compressor accomplished rolling stock air feed demand, the lubricating oil temperature is lower in the air compressor, can't in time discharge the moisture that separates out in the air, can lead to the lubricating oil emulsification, and then influences the normal function of air compressor machine.
At present, in the field of air compressors, in order to solve the problem of emulsification of lubricating oil of the air compressor, a locomotive microcomputer control system or a time relay is generally used for carrying out delay operation on a heat engine of the air compressor, namely after the air compressor meets the air supply requirement of the locomotive, the air compressor is unloaded and operated within delay fixed time, so that the temperature of the lubricating oil is increased, and the precipitated water is discharged out of the air compressor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art at least one kind defect (not enough), provide an air compressor machine heat engine controlling means.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a heat engine control device of an air compressor comprises a power supply module, a protection module, a pressure control module, a motor control module, a no-load control module and a heat engine control module; the input end of the pressure control module is connected with the anode of the power supply module through the protection module, the output end of the pressure control module is electrically connected with the motor control module in a one-way mode, and the output end of the pressure control module is also electrically connected with the no-load control module; the output ends of the motor control module and the no-load control module are connected with the negative electrode of the power supply input end; the input end of the heat engine control module is connected with the protection module, and the output end of the heat engine control module is electrically connected with the input end of the motor control module; the heat engine control module comprises a temperature control switch and a self-locking switch, and the self-locking switch is in control connection with the motor control module; the motor control module can realize that the temperature control of the lubricating oil heat engine is closed through the heat engine control module.
Further, the motor control module comprises a contactor, the contactor is connected with the motor control of the air compressor, and the self-locking switch is a self-locking contact of the contactor.
Further, the no-load control module is an no-load electromagnetic valve, and the no-load electromagnetic valve can be used for controlling the air compressor to enter an no-load mode.
Furthermore, the pressure control module comprises a pressure control switch, and the pressure control switch is switched on and off according to the external total air pressure of the air compressor.
Further, the closing condition of the pressure control switch is that the total external air pressure of the air compressor is less than 750 kpa; and the disconnection condition of the pressure control switch is that the external total wind pressure of the air compressor is less than 900 kpa.
Further, the temperature control switch is a normally closed switch, and the disconnection condition of the temperature control switch is that the temperature of the lubricating oil is higher than 80 ℃.
Further, the protection module comprises a pressure protection switch and a temperature protection switch.
Further, the closing condition of the pressure protection switch is that the air pressure in the air compressor is less than 300 kPa; the temperature protection switch is switched off under the condition that the temperature of the lubricating oil is more than 115 ℃.
Furthermore, the output end of the pressure control module is electrically connected with the motor control module in a one-way mode through a diode.
Further, the power module is a 110V dc power supply.
The utility model discloses a contactor, temperature control switch control motor's switch to the temperature of lubricating oil when control air compressor machine shut down is in reasonable within range, when guaranteeing that the air compressor machine can effectively prevent the emulsification of lubricating oil, avoids overuse air compressor machine motor, reduces the loss of motor, has avoided the waste of the energy, and does not receive the influence of the region of air compressor machine application, season, factors such as altitude, has increased the reliability and the security that lubricating oil emulsification device was prevented to the air compressor machine. Meanwhile, the device is convenient to implement, and when the device is applied to a locomotive air compressor, a microcomputer control program of a locomotive vehicle does not need to be changed, so that the device can be widely applied to an air compressor of a railway locomotive, a high-speed rail, a motor train, an urban rail subway or an airport APM (automatic passenger mobile system), the application scene of the air compressor is greatly increased, and the application value of the air compressor is improved.
Drawings
Fig. 1 is the utility model discloses embodiment air compressor machine heat engine controlling means's block diagram.
Fig. 2 is the embodiment of the utility model provides an air compressor machine heat engine controlling means's block diagram.
Wherein: the system comprises a power module 1, a protection module 2, a pressure control module 3, a motor control module 4, a no-load control module 5, a heat engine control module 6, a pressure protection switch PS2, a temperature protection switch TS1, a temperature control switch TS2, a contactor KM, a pressure control switch PS1, a no-load electromagnetic valve ID and a diode D.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
The embodiment provides a heat engine control device for an air compressor, and specifically, referring to fig. 1-2, a power module 1, a protection module 2, a pressure control module 3, a motor control module 4, a no-load control module 5 and a heat engine control module 6; the input end of the pressure control module 3 is connected with the positive electrode of the power module 1 through the protection module 2, the output end of the pressure control module is electrically connected with the motor control module 4 in a one-way mode, and the output end of the pressure control module is also electrically connected with the no-load control module 5; the output ends of the motor control module 4 and the no-load control module 5 are connected with the negative electrode of the power supply input end; the input end of the heat engine control module 6 is connected with the protection module 2, and the output end of the heat engine control module is electrically connected with the input end of the motor control module 4; the heat engine control module 6 comprises a temperature control switch TS2 and a self-locking switch, and the self-locking switch is in control connection with the motor control module 4; the motor control module 4 can realize the temperature-controlled closing of the lubricating oil heat engine through the heat engine control module 6. It should be noted that the power module 1 may be a 100V dc power supply.
Specifically, motor control module 4 is contactor KM, and contactor KM is connected with the motor control of air compressor machine, and self-locking switch is the auto-lock contact of contactor KM. When the motor control module 4 is powered on, the self-locking switch is closed and combined to realize the self-locking of the contactor KM, and the contact can realize the release of the self-locking through the temperature control switch TS 2. The no-load control module 5 is an no-load electromagnetic valve ID, the no-load electromagnetic valve ID is used for controlling the air compressor to enter the no-load mode, the input end of the no-load electromagnetic valve ID is connected with the positive electrode of the power module 1 through the pressure control switch PS1, and the output end of the no-load electromagnetic valve ID is connected with the negative electrode of the power module 1. Meanwhile, the output end of the pressure control module 3 is connected with the input end of the contactor KM through a diode D, and specifically, the conduction direction of the diode D is the direction from the output end of the pressure control module 3 to the contactor KM. In addition, the motor is connected with a motor power supply through a main contact of the contactor KM, the main contact of the contactor KM is a normally open contact and is in control connection with the contactor KM, and therefore control connection between the motor and the contactor KM is completed.
In some embodiments, the pressure control module 3 is a pressure control switch PS1, and the pressure control switch PS1 is turned on and off according to the total wind pressure outside the air compressor, i.e. the rolling stock. The closed condition of the pressure control switch PS1 is that the total wind pressure of the rolling stock is less than 750 kpa. Specifically, when the total wind pressure of the rolling stock is less than the starting pressure 750kPa of the air compressor, the pressure control switch PS1 closes the loop, the no-load electromagnetic valve ID is powered to work, the contactor KM is powered to work through the diode D, the auxiliary contact is closed, and the air compressor is in a loading operation condition at the moment.
In addition, the open condition of the pressure control switch PS1 is that the total wind pressure of the rolling stock is greater than 900 kpa. Specifically, when the total wind pressure of the rolling stock reaches 900kPa, a pressure control switch PS1 is disconnected, a no-load electromagnetic valve ID loses power and stops working, at the moment, if the temperature of the lubricating oil is less than 80 ℃, a temperature control switch TS2 is kept closed, the system continuously supplies power to a contactor KM through a contactor KM-self-locking contact-temperature control switch TS2, and the air compressor enters an unloading heat engine mode because the no-load electromagnetic valve ID loses power and stops working. Meanwhile, in the operation process of the unloading heat engine, when the total wind pressure of the rolling stock is less than the starting pressure 750kPa of the air compressor, the pressure control switch PS1 closes the loop again, the no-load electromagnetic valve ID is electrified to work, and the air compressor can be switched into the loading operation mode at any time.
More specifically, the pressure control switch PS1 is a mechanical pressure control switch PS1, and one end of a toggle piece of the pressure control switch PS1 is fixedly disposed at an input end of the no-load solenoid valve ID, and the other end is controlled to be disposed at a disconnection end or a conduction end connected with the positive pole of the power supply, so that the control of the pressure control switch PS1 on the no-load operation of the air compressor is realized. The mechanical pressure control switch PS1 can ensure the long-term effectiveness of the pressure control switch PS1 in the air compressor, and subsequent verification is not needed, so that the reliability of the lubricating oil discharging emulsion control device of the air compressor is improved.
In some embodiments, temperature control switch TS2 is a normally closed switch and the open condition of temperature control switch TS2 is that the lubricant temperature is greater than 80 ℃. Specifically, in the unloading heat engine process, when the temperature of the lubricating oil reaches 80 ℃, the temperature control switch TS2 is disconnected with the loop, the contactor KM is de-energized, the air compression exits the unloading heat engine mode, and the air compressor enters the waiting starting stage. Therefore, after the air compressor is started, the temperature of the lubricating oil can be ensured to be higher than 80 ℃ when the air compressor is stopped, and therefore the water separated from the lubricating oil is discharged out of the air compressor.
When the preset on-pressure range or the preset off-temperature value needs to be adjusted, the adjustment can be completed only by selecting the corresponding pressure control switch PS1 or temperature control switch TS2TS2, the replacement is simple and convenient, and the application scene of the device is enlarged.
In some embodiments, the protection module 2 is used for protecting the air compressor, so as to prevent the air compressor from being started with load and from being over-heated. Specifically, the protection module 2 includes a pressure protection switch PS2 and a temperature protection switch TS1, and the pressure protection switch PS2 and the temperature protection switch TS1 are normally closed switches. When the air compressor is ready to be started, if the air pressure in the air compressor is greater than the starting closing pressure value of the pressure protection switch PS2, the pressure protection switch PS2 is disconnected, and the air compressor cannot be started, so that the air compressor is prevented from being started with a load. Specifically, the activation closing pressure value of the pressure protection switch PS2 is 300 kPa. The temperature protection switch TS1 is used for monitoring the temperature of lubricating oil in the air compressor, and the disconnection condition of the temperature protection switch TS1 is that the temperature value of the lubricating oil is larger than 115 ℃. When the temperature of the lubricating oil is higher than 115 ℃, the temperature protection switch TS1 is switched off, the air compressor is forcibly stopped, and the air compressor is prevented from being further heated to cause accidents.
Specifically, for better operation experience, a control process of the heat engine control device of the embodiment is provided, referring to fig. 2, specifically, the air compressor is powered on first, and meanwhile, the control device of the embodiment is powered on through the power module 1, when the air compressor is ready to be started, if the pressure in the air compressor is greater than the starting pressure of the air compressor by 300kpa, the air compressor cannot be started; when the pressure of the air compressor is smaller than the starting pressure of the air compressor, the air compressor is started, when the total wind pressure of the rolling stock is smaller than 750kPa, the pressure control switch PS1 is switched on, the ID of the no-load electromagnetic valve is electrified, and the air compressor enters a loading operation mode; when the total wind pressure of the rolling stock is larger than 900kPa, the pressure control switch PS1 is disconnected, the no-load electromagnetic valve ID is electrified, and the air compressor enters an unloading heat engine mode until the temperature of the lubricating oil reaches 80 ℃. When the temperature of the lubricating oil is higher than 80 ℃, the temperature control switch TS2 is switched off, the self-locking of the contactor KM is released, and the motor is switched off, so that the temperature of the lubricating oil can be higher than 80 ℃ when the air compressor is stopped after being started, and the function of preventing the lubricating oil from emulsifying is realized.
The benefit of this embodiment device lies in, this device passes through contactor KM, temperature control switch TS2 has accomplished the control of temperature in the air compressor and has closed, guarantee that the air compressor machine all can guarantee that its lubricating oil temperature is greater than 80 ℃ when shutting down after starting at every turn, when guaranteeing that the air compressor machine can prevent the emulsification of lubricating oil, avoid overuse motor, greatly reduced the loss of motor, the waste of the energy has been avoided, and not receive the region of air compressor machine application, the influence of factors such as season, greatly increased the reliability and the security of lubricating oil emulsification device are prevented to the air compressor machine.
Meanwhile, the device is convenient to implement, and when the device is applied to a locomotive air compressor, a microcomputer control program of a locomotive vehicle does not need to be changed, so that the device can be widely applied to air compressors of railway locomotives, high-speed rails, motor trains, urban rail subways or airport APM vehicles, the application scenes of the air compressor heat engine control device are greatly increased, and the application value of the air compressor heat engine control device is improved.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The heat engine control device for the air compressor is characterized by comprising a power supply module (1), a protection module (2), a pressure control module (3), an electric motor control module (4), a no-load control module (5) and a heat engine control module (6); the input end of the pressure control module (3) is connected with the anode of the power supply module (1) through the protection module (2), the output end of the pressure control module is electrically connected with the motor control module (4) in a one-way mode, and the output end of the pressure control module is also electrically connected with the no-load control module (5); the output ends of the motor control module (4) and the no-load control module (5) are connected with the negative electrode of the power supply input end; the input end of the heat engine control module (6) is connected with the protection module (2), and the output end of the heat engine control module is electrically connected with the input end of the motor control module (4); the heat engine control module (6) comprises a temperature control switch and a self-locking switch, and the self-locking switch is in control connection with the motor control module (4); the motor control module (4) can realize the temperature control of the lubricating oil heat engine to be closed through the heat engine control module (6).
2. The air compressor heat engine control device according to claim 1, characterized in that the motor control module (4) comprises a contactor in control connection with a motor of the air compressor, and the self-locking switch is a self-locking contact of the contactor.
3. The air compressor heat engine control device according to claim 1, characterized in that the no-load control module (5) is an no-load solenoid valve which can be used to control the air compressor to enter an no-load mode.
4. The air compressor heat engine control device according to claim 1, characterized in that the pressure control module (3) comprises a pressure control switch which is closed and opened according to the magnitude of the total air pressure outside the air compressor.
5. The air compressor heat engine control device according to claim 4, wherein the closing condition of the pressure control switch is that the total air compressor external air pressure is less than 750 kpa; and the disconnection condition of the pressure control switch is that the external total wind pressure of the air compressor is less than 900 kpa.
6. An air compressor heat engine control device as claimed in claim 4, wherein the temperature control switch is a normally closed switch and the off condition of the temperature control switch is that the temperature of the lubricating oil is greater than 80 ℃.
7. The air compressor heat engine control device according to any one of claims 1 to 6, characterized in that the protection module (2) comprises a pressure protection switch and a temperature protection switch.
8. The air compressor heat engine control device as claimed in claim 7, wherein the pressure protection switch is closed under the condition that air pressure in the air compressor is less than 300 kPa; the temperature protection switch is switched off under the condition that the temperature of the lubricating oil is more than 115 ℃.
9. The air compressor and heat engine control device as claimed in any one of claims 1 to 6, wherein the output end of the pressure control module (3) is electrically connected with the motor control module (4) in a unidirectional manner through a diode.
10. The air compressor heat engine control device according to any one of claims 1 to 6, characterized in that the power module (1) is a 110V DC power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922346042.1U CN211314520U (en) | 2019-12-24 | 2019-12-24 | Air compressor machine heat engine control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922346042.1U CN211314520U (en) | 2019-12-24 | 2019-12-24 | Air compressor machine heat engine control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211314520U true CN211314520U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922346042.1U Active CN211314520U (en) | 2019-12-24 | 2019-12-24 | Air compressor machine heat engine control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211314520U (en) |
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2019
- 2019-12-24 CN CN201922346042.1U patent/CN211314520U/en active Active
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