CN208947310U - A kind of monitoring system of air supply system - Google Patents

Abstract

This application discloses a kind of monitoring systems of air supply system, are applied to rail vehicle, obtain the first air pressure for monitoring the air pressure for not filtering gas including being located at the first pressure sensor of front end of filter；Second pressure sensor positioned at the rear end of filter, for monitor filtering after gas air pressure, obtain the second air pressure；The processor that input terminal is connect with the output end of the output end of first pressure sensor and second pressure sensor respectively；The alarm module of the output end of input terminal and processor connection；When the absolute value of the difference of the first air pressure and the second air pressure is more than preset value, processor control alarm module issues the first pre-warning signal and driver is reminded to detect and replace filter core.Therefore, the monitoring system of air supply system provided by the present application replaces the mode of artificial detection to realize the monitoring to the filter core of filter, saves manpower, reduces the maintenance cost to air supply system.

Description

A kind of monitoring system of air supply system

Technical field

The utility model relates to rail vehicle fields, more particularly to a kind of monitoring system of air supply system.

Background technique

Air supply system in motor vehicle braking system provides high pressure gas, the work shape of air supply system using air compressor State directly affects the operating condition of vehicle, therefore most important to the monitoring of air supply system.

In air supply system, a large amount of impurity is mixed in the air by air entry entrance, if these impurity are without place Reason can pollute the lubricating oil in air compressor if entering air compressor, and air pressure can be even worn when serious Components in contracting machine, therefore the filter for being used to air filtering would generally be set between air entry and air compressor.? In the use process of filter, filter core therein can have the risk of blocking or damage, influence the normal work of air supply system, Therefore, it is necessary to emphasis to check the filter core in filter, if needing to replace filter core when the damage of discovery filter core or blocking. It is in the prior art usually to be detected by the way of artificial to filter core when carrying out Maintenance and Repair to vehicle, artificial detection side Formula takes time and effort, and causes the maintenance cost to air supply system higher.

Utility model content

The purpose of the utility model is to provide a kind of monitoring system of air supply system, realized pair instead of the mode of artificial detection The monitoring of the filter core of filter saves manpower, reduces the maintenance cost to air supply system.

In order to solve the above technical problems, the utility model provides a kind of monitoring system of air supply system, it is applied to track Vehicle, comprising:

First pressure sensor positioned at the front end of filter obtains the first gas for monitoring the air pressure for not filtering gas Pressure；

Second pressure sensor positioned at the rear end of filter, for monitor filtering after gas air pressure, obtain the second gas Pressure；

The processing that input terminal is connect with the output end of the output end of first pressure sensor and second pressure sensor respectively Device, when the absolute value of the difference of the first air pressure and the second air pressure is more than preset value, control alarm module issues the first early warning letter Number；

The alarm module of the output end of input terminal and processor connection.

Preferably, further includes:

The liquid level sensor being connect with the input terminal of processor, the liquid for the lubricating oil in real-time monitoring air compressor Position, obtains liquid level signal；

Processor is also used to when liquid level signal is less than the second preset value, and control alarm module issues the second pre-warning signal.

Preferably, liquid level sensor is capacitance level transducer.

Preferably, further includes:

The connection of the output end of control terminal and processor, first end connect to power supply, and second end is connect with air compressor Switch module；

The temperature sensor being connect with the input terminal of processor, for monitoring the oil temperature of the lubricating oil in air compressor, Obtain oil temperature signal；

Processor is also used to when oil temperature signal is more than third preset value, and control switch module disconnects, and controls alarm mould Block issue third pre-warning signal, when oil temperature signal be restored to third preset value and it is following when, control switch module closure.

Preferably, switch module is breaker.

Preferably, switch module is contactor.

Preferably, processor is microprocessor.

Preferably, alarm module is display alarm module.

Preferably, alarm module is sound alarm module.

Preferably, alarm module is the human-computer interaction module in driver's control room of rail vehicle.

The utility model provides a kind of wind regime monitoring system, is applied to rail vehicle, including first pressure sensor, the Two pressure sensors, processor and alarm module.First pressure sensor obtains first for monitoring the air pressure for not filtering gas Air pressure, second pressure sensor are used to monitor the air pressure of gas after filtering, obtain the second air pressure；When the first air pressure and the second air pressure The absolute value of difference when being greater than the first preset value, illustrating the filter core of filter, there may be damage or stopping states so that Pressure drop by the air pressure after filter is larger, and alarm module can issue the first pre-warning signal to driver at this time, reminds driver Filter core is detected and is replaced.The wind regime monitoring system that the utility model provides replaces the mode of artificial detection to realize to filtering The monitoring of device filter core saves manpower, reduces the maintenance cost to air supply system.

Detailed description of the invention

It, below will be to the prior art and embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other attached drawings.

Fig. 1 is that a kind of structure of the first specific embodiment of the monitoring system of air supply system provided by the utility model is shown It is intended to；

Fig. 2 is that a kind of structure of second of specific embodiment of the monitoring system of air supply system provided by the utility model is shown It is intended to；

Fig. 3 is that a kind of structure of the third specific embodiment of the monitoring system of air supply system provided by the utility model is shown It is intended to.

Specific embodiment

The core of the utility model is to provide a kind of monitoring system of air supply system, realizes pair instead of the mode of artificial detection The monitoring of the filter core of filter saves manpower, reduces the maintenance cost to air supply system.

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

Fig. 1 is please referred to, Fig. 1 is a kind of the first specific implementation of monitoring system of air supply system provided by the utility model The structural schematic diagram of example, is applied to rail vehicle, which includes:

First pressure sensor 3 positioned at the front end of filter obtains the first gas for monitoring the air pressure for not filtering gas Pressure；

Second pressure sensor 4 positioned at the rear end of filter, for monitor filtering after gas air pressure, obtain the second gas Pressure；

The place that input terminal is connect with the output end of the output end of first pressure sensor 3 and second pressure sensor 4 respectively Device 2 is managed, when the absolute value of the difference of the first air pressure and the second air pressure is more than preset value, it is pre- that control alarm module 1 issues first Alert signal；

The alarm module 1 that input terminal is connect with the output end of processor 2.

In view of the filter core in air supply system, being set in filter is used to filter the gas entered from air entry. Under normal circumstances, the pressure difference for filtering the gas of front and back is little.When there is damage or blocking in filter core, the pressure of filtered gas Drop it is larger, filter filtering front and back gas air pressure difference absolute value it is larger.Based on this, this application provides a kind of wind The monitoring system of source system.

Specifically, first pressure sensor 3 is set between air entry and filter, for monitoring the gas before filtering Air pressure obtains the first air pressure.Second pressure sensor 4 is set between filter and air compressor machine, for monitoring filtered gas The air pressure of body obtains the second air pressure.When the absolute value of the difference of the first air pressure and the second air pressure is greater than the first preset value, explanation The filter core of filter causes the pressure drop of filtered gas larger, at this point, processor 2 will there may be damage or blocking Control alarm module 1 issues the first pre-warning signal to remind driver to detect and replace the filter core of filter.

It should be noted that the first preset value here can be set as the 10% of the air pressure of the gas before filtering, certainly, Here the first preset value also can be set as other numerical value, and the application does not limit this, and be set according to air supply system It is fixed, as long as meeting work requirements.

Specifically, first pressure sensor 3 and second pressure sensor 4 can be ceramic pressure sensor.Because in wind When the system worked well of source, internal temperature is higher, and the operational process of vehicle, along with concussion, ceramic pressure sensor has Anti-vibration, heat-resisting high, measurement accuracy height, the good advantage of stability are conducive to carry out the air pressure of the gas of filtering front and back accurate Monitoring, and cost is relatively low.It certainly, can also be other kinds of pressure sensor in the application, as diffused-silicon pressure passes Sensor, as long as meeting operating condition.

It should be noted that the application can monitor respectively for a pair of of first pressure sensor 3 and second pressure sensor 4 Filter the air pressure of the gas of front and back, or multipair first pressure sensor 3 and second pressure sensor 4, multipair sensor Between be mutually redundant.

To sum up, the wind regime monitoring system which provides replaces the mode of artificial detection to realize to filter element Monitoring saves manpower, reduces the maintenance cost to air supply system.

On the basis of the above embodiments:

Referring to figure 2., Fig. 2 is a kind of second of specific implementation of monitoring system of air supply system provided by the utility model The structural schematic diagram of example, further includes:

The liquid level sensor 5 being connect with the input terminal of processor 2, for the lubricating oil in real-time monitoring air compressor Liquid level obtains liquid level signal；

Processor 2 is also used to when liquid level signal is less than the second preset value, and control alarm module 1 issues the second early warning letter Number.

In the prior art, Maintenance and Repair are usually carried out to vehicle using regularly mode, and is in Maintenance and Repair The liquid level of lubricating oil in air compressor is detected by the way of artificial, and meeting between the Maintenance and Repair twice of vehicle There is longer time interval, in this time interval, the lubricating oil liquid level in air compressor is likely to too low, causes Meshing gear in air compressor does not obtain the sufficient lubrication of lubricating oil completely, and seriously affect meshing gear uses the longevity Life.Therefore second of specific embodiment of the monitoring system of air supply system provided herein, which increases, utilizes monitoring system pair The liquid level of lubricating oil carries out the function of real-time monitoring.

Specifically, liquid level sensor 5 is used to the liquid level of the lubricating oil in real-time monitoring air compressor, and obtain liquid level letter Number, which can be voltage signal, or current signal etc., as long as can be identified with device 2 processed.Work as liquid When position signal is lower than the second preset value, processor 2 will control alarm module 1 and issue the second pre-warning signal to remind driver's lubricating oil Liquid level it is too low.

It should be noted that the second preset value needs are set according to the model of air compressor in practical applications Fixed, the application does not limit this.

To sum up, on the one hand, be monitored using liquid level of the liquid level sensor 5 to lubricating oil to replace manually to lubricating oil Position, which carries out detection, can be effectively saved manpower；On the other hand, it is carried out in real time using liquid level of the liquid level sensor 5 to lubricating oil It monitors and prompts, it is ensured that driver can timely have found that the liquid level of the lubricating oil in air compressor is too low, thus to profit Lubricating oil is supplemented.

Embodiment as one preferred, liquid level sensor 5 are capacitance level transducer.

Specifically, by the capacitor plate of capacitance level transducer perpendicular to the liquid level of lubricating oil, it is placed into and lubricating oil Liquid level the corresponding place of the second preset value.When liquid level signal is equal to the second preset value, capacitance level transducer can To be that a part of pole plate is located at outside liquid level, a part of pole plate is located in liquid level, and the size of capacitor has a particular value at this time.When When the liquid level of lubricating oil continues to reduce, due to the dielectric of the medium between the capacitance size of capacitor and the area of pole plate and pole plate Constant is directly proportional, and when the dielectric constant of the medium between the area and pole plate of pole plate changes, the size of capacitor is also changed correspondingly, Therefore the liquid level of lubricating oil can be monitored.Capacitance level transducer has many advantages, such as that structure is simple, fast response time, Monitoring requirements can be met well, the other kinds of liquid level sensor 5 for meeting work requirements certainly can also be with.

Referring to figure 3., Fig. 3 is a kind of the third specific implementation of monitoring system of air supply system provided by the utility model The structural schematic diagram of example, further includes:

Control terminal is connect with the output end of processor 2, and first end connects to power supply, and second end is connect with air compressor Switch module 7；

The temperature sensor being connect with the input terminal of processor 2, for monitoring the oil temperature of the lubricating oil in air compressor, Obtain oil temperature signal；

Processor 2 is also used to when oil temperature signal is more than third preset value, and control switch module 7 disconnects, and controls alarm Module 1 issue third pre-warning signal, when oil temperature signal be restored to third preset value and it is following when, control switch module 7 be closed.

In the prior art, generally the oil temperature of the lubricating oil in air compressor is controlled using temperature switch, When the oil temperature of lubricating oil is higher than setting value, temperature switch is disconnected, and air compressor stops working；When the oil temperature of lubricating oil is restored When normal, temperature switch closure, air compressor is worked normally.Since temperature switch is generally single contact switch, using The opening and closing of mechanical control temperature switch is to control the conducting of air compressor circuit, internal temperature-sensing element is with oil temperature Change its deformation quantity to be inaccurate, therefore the opening and closing of temperature switch has biggish drift.So in second of specific embodiment On the basis of, a kind of the third specific embodiment of the monitoring system of air supply system provided by the present application, which also adds, utilizes monitoring The function that system is monitored the oil temperature of lubricating oil.

Specifically, oil temperature sensor 6 is used to monitor the oil temperature of lubricating oil in air compressor, and oil temperature signal is sent to Processor 2, when oil temperature signal is higher than third preset value, processor 2 controls alarm module 1 and issues third pre-warning signal, and controls Switch module 7 processed disconnects, and air compressor stops working；The oil temperature of oil to be lubricated be restored to third preset value and its it is following when, 2 control switch module 7 of processor closure, air compressor are reworked.

Different from temperature switch using the opening and closing of mechanical control temperature switch to control leading for air compressor circuit Logical, oil temperature sensor 6 is to be measured using electronic types such as thermistor or thermocouples to temperature, has response speed Fastly, high sensitivity is drifted about the advantages that small, and the oil temperature of lubricating oil can be fast and accurately measured.

It should be noted that third preset value needs determine that the application is not done herein according to the model of air compressor It limits.The oil temperature of lubricating oil in usual air compressor is higher, and third preset value selects generally between 350-400 DEG C Fixed oil temperature sensor 6 meets this operating condition.

To sum up, temperature is measured using oil temperature sensor 6, there is fast response time, high sensitivity is drifted about small etc. Advantage can fast and accurately measure the oil temperature of lubricating oil.

Embodiment as one preferred, switch module 7 are breaker.

Embodiment as one preferred, switch module 7 are contactor.

Specifically, voltage and current is larger, therefore can choose and be usually used in because air compressor machine circuit is usually high-tension circuit Breaker or contactor in high-tension circuit have high reliablity, the strong advantage of arc extinguishing ability as switch module 7.Certainly, Other switch modules 7 for meeting operating condition can also be with.

Embodiment as one preferred, processor 2 are microprocessor.

Specifically, the signal that is sent using microprocessor come receiving sensor and to alarm module 1 or switch module 7 into Row control, has small in size, light-weight, low power consumption and other advantages.Certainly, other 2 types of processor for meeting operating condition can also With.

Embodiment as one preferred, alarm module 1 are display alarm module.

Embodiment as one preferred, alarm module 1 are sound alarm module.

Specifically, display alarm module can with but be not only limited to display screen, sound alarm module can with but be not only limited to bee Ring device.It is alarm module 1 there are also a kind of preferably situation while includes sound alarm module and display alarm module, the two is realized It is mutually redundant, further improves the alarm reliability of air supply system.

Embodiment as one preferred, alarm module 1 are the human-computer interaction module in driver's control room of rail vehicle.

Specifically, driver's control room of usually rail vehicle all has human-computer interaction module, it to be used for rail vehicle and driver Interaction, therefore, alarm module can be the display module and/or sound module of the human-computer interaction module in driver's control room. On the one hand cost has been saved using the human-computer interaction module in driver's control room as alarm module, and has facilitated driver receipt pre- Alert signal；On the other hand due to not having to still further increase alarm module, the layout volume of monitoring system is saved.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part It is bright.

It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by One entity distinguishes, and without necessarily requiring or implying these entities, there are any actual relationship or orders. Moreover, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that including one The system of list of elements not only includes those elements, but also including other elements that are not explicitly listed, or further includes The element intrinsic for this system.In the absence of more restrictions, the element limited by sentence "including a ...", Be not precluded include the element system in there is also other identical elements.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (10)

1. a kind of monitoring system of air supply system is applied to rail vehicle characterized by comprising

First pressure sensor positioned at the front end of filter obtains the first air pressure for monitoring the air pressure for not filtering gas；

Second pressure sensor positioned at the rear end of the filter, for monitor filtering after gas air pressure, obtain the second gas Pressure；

What input terminal was connect with the output end of the output end of the first pressure sensor and the second pressure sensor respectively Processor, when the absolute value of the difference of first air pressure and second air pressure is more than preset value, control alarm module hair First pre-warning signal out；

The alarm module that input terminal is connect with the output end of the processor.

2. the monitoring system of air supply system as described in claim 1, which is characterized in that further include:

The liquid level sensor being connect with the input terminal of the processor, the liquid for the lubricating oil in real-time monitoring air compressor Position, obtains liquid level signal；

The processor is also used to when the liquid level signal is less than the second preset value, is controlled the alarm module and is issued second in advance Alert signal.

3. the monitoring system of air supply system as claimed in claim 2, which is characterized in that the liquid level sensor is condenser type liquid Level sensor.

4. the monitoring system of air supply system as claimed in claim 2, which is characterized in that further include:

Control terminal is connect with the output end of the processor, and first end connects to power supply, and second end and the air compressor connect The switch module connect；

The temperature sensor being connect with the input terminal of the processor, for monitoring the oil of the lubricating oil in the air compressor Temperature obtains oil temperature signal；

The processor is also used to control the switch module when the oil temperature signal is more than third preset value and disconnect, and control Make the alarm module and issue third pre-warning signal, when the oil temperature signal be restored to the third preset value and it is following when, control Make the switch module closure.

5. the monitoring system of air supply system as claimed in claim 4, which is characterized in that the switch module is breaker.

6. the monitoring system of air supply system as claimed in claim 4, which is characterized in that the switch module is contactor.

7. the monitoring system of air supply system as claimed in any one of claims 1 to 6, which is characterized in that the processor is micro- place Manage device.

8. the monitoring system of air supply system as claimed in any one of claims 1 to 6, which is characterized in that the alarm module is aobvious Show alarm module.

9. the monitoring system of air supply system as claimed in any one of claims 1 to 6, which is characterized in that the alarm module is sound Sound alarm module.

10. the monitoring system of air supply system as claimed in any one of claims 1 to 6, which is characterized in that the alarm module is Human-computer interaction module in driver's control room of the rail vehicle.