CN207945085U - A kind of control system preventing air compressor machine exception start and stop - Google Patents
A kind of control system preventing air compressor machine exception start and stop Download PDFInfo
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- CN207945085U CN207945085U CN201820142075.7U CN201820142075U CN207945085U CN 207945085 U CN207945085 U CN 207945085U CN 201820142075 U CN201820142075 U CN 201820142075U CN 207945085 U CN207945085 U CN 207945085U
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Abstract
The utility model discloses a kind of control systems preventing air compressor machine exception start and stop, including DC power supply, the first dc switch, the second dc switch, controller and motor；The first end of first dc switch and the second dc switch is connect with one end of DC power supply, and the second end of the first dc switch and the second dc switch is connect with controller, and the motor is connect with the other end of controller and DC power supply respectively；The control instruction on or off that first dc switch and the second dc switch are sent according to DCS, control instruction is generated when controller detects that the working condition of the first dc switch or the second dc switch changes, and controls electric motor starting or is stopped controlling air compressor machine work.It is powered using DC power supply, controls in cable and not will produce ac induction voltage, when DCS sends relevant control instruction, related dc switch will not be influenced by ac induction voltage, can solve the problems, such as to close a floodgate or separating brake is unsuccessful.
Description
Technical field
The utility model is related to air compressor machine control field, more particularly to a kind of control system preventing air compressor machine exception start and stop
System.
Background technology
A distant place for air compressor machine, which opens, stops control process, at present is：Reclosing command is sent by distant place control system DCS or separating brake refers to
It enables by distant place change-over switch to air compressor machine local control box, and then starts related intermediate relay, then sent out by control cabinet
Go out corresponding control instruction control air compressor motor to start or stop, and then controls air compressor machine work.
When a distant place, control system DCS sends out separating brake instruction, separating brake relay normally closed contact is opened, but by control cable
The influence of middle ac induction voltage still has the alternating voltage of 89V or so, institute at the terminal that control cabinet connects closing relay
It is not returned with closing relay action, which is constantly in excited state, therefore the control in air compressor machine control cabinet
Device does not receive sub-gate signal, causes separating brake unsuccessful.It is unsuccessful similarly to will also result in combined floodgate.At present mainly by replacing air compressor machine
Opening, stopping intermediate relay in local control box is to start the big relay of voltage；Cable shielding layer earthing will be controlled；Using upper
Compressor operation normal a period of time after the mode of stating is handled, drawbacks described above can be repeated, cannot thoroughly solve alternating current impression electricity
Hidden danger.
It can be seen that how thoroughly to solve air compressor machine in the process of running due to being also easy to produce alternating current impression on long-distance cable
Voltage and the causing unsuccessful problem of unsuccessful or separating brake of closing a floodgate is those skilled in the art's urgent problem to be solved.
Utility model content
The embodiment of the present application provides a kind of control system preventing air compressor machine exception start and stop, hollow to solve the prior art
Press in the process of running due to be also easy to produce ac induction voltage on long-distance cable and cause to close a floodgate unsuccessful or separating brake not at
The problem of work(.
In order to solve the above technical problems, the utility model provides a kind of control system preventing air compressor machine exception start and stop,
Including：
DC power supply, the first dc switch, the second dc switch, controller and motor；
The one end of the first end of first dc switch and second dc switch with the DC power supply
The second end of connection, first dc switch and second dc switch is connect with the controller, the motor point
It is not connect with the other end of the controller and the DC power supply；
The control instruction on or off that first dc switch and second dc switch are sent according to DCS,
It is generated when the controller detects that the working condition of first dc switch or second dc switch changes
Control instruction controls the electric motor starting or stops controlling air compressor machine work.
Preferably, first dc switch is specially direct current separating brake relay, one group of the direct current separating brake relay
Normally closed contact is connect with the first input end of the controller and the second input terminal respectively.
Preferably, second dc switch is specially direct current closing relay, one group of the direct current closing relay
Normal opened contact is connect with the third input terminal of the controller and the 4th input terminal respectively.
Preferably, further include：
With the concatenated overcurrent protector of direct current closing relay, when the overcurrent protector detects that the direct current closes
When the current value of lock relay is more than threshold value, the normal opened contact of the overcurrent protector is disconnected to protect the motor.
Preferably, further include：
It is connect with the controller, for the alarm module when air compressor machine exception alarm prompt.
Preferably, the alarm module is specially buzzer.
Preferably, further include：
It is connect with the controller, the information storing device of job information for storing the air compressor machine.
Preferably, further include：
It is connect with the controller, for feeding back the job information to the information feedback device of the DCS.
Preferably, the motor is specially series excitation commutator machine.
Preferably, the air compressor machine is specially L132-L250 screw-rod air compressors.
Compared with the prior art, a kind of control system preventing air compressor machine exception start and stop provided by the utility model, packet
Include DC power supply, the first dc switch, the second dc switch, controller and motor；First dc switch and the second direct current
The first end of switch is connect with one end of DC power supply, the second end of the first dc switch and the second dc switch with
Controller connects, and the motor is connect with the other end of controller and DC power supply respectively；First dc switch and second
The control instruction on or off that dc switch is sent according to DCS, when controller detects the first dc switch or second directly
The working condition of stream switch generates control instruction when changing, and controls electric motor starting or stops controlling air compressor machine work.By
This is powered as it can be seen that in this control system using DC power supply, is controlled in cable and not will produce ac induction voltage, when
When DCS sends relevant control instruction, the first dc switch or the second dc switch will not ac induction voltages in by cable
Influence, that is to say, that in air compressor machine normal operation be not in close a floodgate caused by ac induction voltage influences it is unsuccessful or
It is unsuccessful unsuccessful with separating brake can to solve the problems, such as that air compressor machine closes a floodgate for the unsuccessful phenomenon of separating brake.
Description of the drawings
Fig. 1 is illustrated by a kind of Control system architecture preventing air compressor machine exception start and stop that the utility model embodiment provides
Figure；
Fig. 2 prevents the Control system architecture of air compressor machine exception start and stop from showing by the another kind that the utility model embodiment provides
It is intended to.
Specific implementation mode
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
All other embodiment, shall fall within the protection scope of the present invention.
The core of the utility model is to provide a kind of control system preventing air compressor machine exception start and stop, can solve air compressor machine
In the process of running due to being also easy to produce ac induction voltage on long-distance cable and the unsuccessful or separating brake that causes to close a floodgate is unsuccessful
Problem.
It is below in conjunction with the accompanying drawings and specific real in order to make those skilled in the art more fully understand the embodiment of the utility model
Applying mode, the utility model is described in further detail.
Fig. 1 is illustrated by a kind of Control system architecture preventing air compressor machine exception start and stop that the utility model embodiment provides
Figure, as shown in Figure 1, including DC power supply 101, the first dc switch 102, the second dc switch 103,104 and of controller
Motor 105；
The first end of first dc switch 102 and the second dc switch 103 connects with one end of DC power supply 101
Connect, the second end of the first dc switch 102 and the second dc switch 103 is connect with controller 104, motor 105 respectively with control
Device 104 processed is connected with the other end of DC power supply 101；
The control instruction on or off that first dc switch 102 and the second dc switch 103 are sent according to DCS, when
Controller 104 detects that control is generated when the working condition of the first dc switch 102 or the second dc switch 103 changes to be referred to
It enables, control motor 105 is started or stoped to control air compressor machine work.
The first end of the first dc switch 102 and the second dc switch 103 is and direct current supply in the embodiment of the present application
One end of power supply 101 connects, and the second end of the first dc switch 102 and the second dc switch 103 is connect with controller 104,
Motor 105 is connect with the other end of controller 104 and DC power supply 101 respectively；It is powered using DC power supply 101,
It is small by external interference compared with communication power supply, when the first dc switch 102 and the second dc switch 103 receive DCS
When the control instruction that (distant place control system) is sent, 103 on or off of the first dc switch 102 or the second dc switch, so
Controller 104 can be according to the working state control motor of the first dc switch 102 or the second dc switch 103 detected afterwards
105 start or stop, and then control air compressor machine and start or stop.In practical applications, controller 104 is mounted in control cabinet
, the first dc switch 102 or the second dc switch 103 are that terminals directly different from control cabinet are attached, and are controlled
What device 104 processed transmitted is weakness, and the first dc switch 102 or the second dc switch 103 can directly receive forceful electric power, so
Dependent instruction is directly sent to the first dc switch 102 or the second dc switch 103 by DCS, rather than is sent directly to control
Device 104.Cable in control system of air compressor is long, if powered using communication power supply, can generate friendship in the cable
Induced voltage is flowed, the normal operation of air compressor machine is influenced, so use DC power supply 101 to power in the embodiment of the present application,
Ac induction voltage would not be generated in long-distance cable, it can be unsuccessful to avoid the unsuccessful or separating brake that closes a floodgate in the prior art
The problem of.In the embodiment of the present application, preferably embodiment, air compressor machine are specially L132-L250 screw pneumatics
Machine.Motor 105 is preferably series excitation commutator machine, which both can also pass through Alternating Current Power Supply by direct current supply
Motor, the type of certain motor 105 and the type of air compressor machine do not interfere with the realization of the embodiment of the present application.
Preferably, the first dc switch 102 is specially direct current separating brake relay, and one group of direct current separating brake relay normally closed to connect
Point is connect with the first input end of controller 104 and the second input terminal respectively.Second dc switch 103 be specially direct current close a floodgate after
One group of normal opened contact of electric appliance, direct current closing relay is connect with the third input terminal of controller 104 and the 4th input terminal respectively.
In the prior art, power supply is AC power, and corresponding relay is AC relay, is divided when DCS is sent
When lock instructs, the separating brake actuating of relay, i.e. the one of separating brake relay group normally closed contact are opened, but due to will produce friendship in cable
Induced voltage is flowed, so still have the voltage value of 89V or so between the third input terminal and the 4th input terminal of controller 104,
So the action for being at this moment equivalent to closing relay does not return to (coil of closing relay is constantly in excited state), then control
What device 104 received is still the combined floodgate working condition of closing relay, and does not receive the separating brake working condition of separating brake relay,
So separating brake can be caused unsuccessful, similarly, it is unsuccessful to also result in combined floodgate.When relay coil is not charged, it is off
Contact be known as normal opened contact, the contact in closed state is known as normally closed contact；Normal opened contact is closed after coil energization, often
Contact is closed to disconnect after coil energization.
And in the embodiment of the present application, it is powered using DC power supply 101, corresponding relay uses DC relay,
During compressor operation, if DCS sends separating brake instruction, the direct current separating brake actuating of relay, normally closed contact is opened, at this time
Voltage value between the third input terminal and the 4th input terminal of controller 104 can become zero, and at this moment controller 104 will detect
It is dynamic that voltage change between third input terminal and the 4th input terminal, i.e. controller 104 can receive direct current separating brake relay
Dependent instruction after work will produce control instruction control motor 105 and stop operating after controller 104 receives dependent instruction,
And then control air compressor machine and be stopped, success separating brake, making process is similarly.
It should be noted that the first dc switch 102 and the second dc switch 103 are according to hobby and custom name,
There is no other particular meanings, and certainly, the naming method and first of the first dc switch 102 and the second dc switch 103 is directly
The correspondence of stream switch 102, the second dc switch 103 and direct current separating brake relay, direct current closing relay can't influence
The realization of the embodiment of the present application.
A kind of control system preventing air compressor machine exception start and stop provided by the utility model, including DC power supply,
First dc switch, the second dc switch, controller and motor；The first end of first dc switch and the second dc switch with
One end of DC power supply connects, and the second end of the first dc switch and the second dc switch is connect with controller, described
Motor is connect with the other end of controller and DC power supply respectively；First dc switch and the equal foundation of the second dc switch
The control instruction on or off that DCS is sent, when controller detects the work shape of the first dc switch or the second dc switch
Control instruction is generated when state changes, and controls electric motor starting or is stopped controlling air compressor machine work.It can be seen that in this control
It in system, is powered using DC power supply, controls in cable and not will produce ac induction voltage, when DCS sends relevant control
When instruction, the first dc switch or the second dc switch ac induction voltage will not be influenced in by cable, that is to say, that
Be not in when air compressor machine normal operation caused by ac induction voltage influences the unsuccessful or separating brake that closes a floodgate it is unsuccessful existing
As it is unsuccessful unsuccessful with separating brake can to solve the problems, such as that air compressor machine closes a floodgate.
On the basis of the above embodiments, preferably embodiment further includes：
With the concatenated overcurrent protector of direct current closing relay, when overcurrent protector detects the electricity of direct current closing relay
When flow valuve is more than threshold value, the normal opened contact of overcurrent protector is disconnected to protect motor 105.
Electric current in order to prevent in control system is excessive and burns motor 105, so this control system further includes：With direct current
The concatenated overcurrent protector of closing relay, when overcurrent protector detects that the current value of direct current closing relay is more than threshold value
When, the normal opened contact of overcurrent protector just will disconnect and then achieve the purpose that protect motor 105.Threshold value refers to closing relay
Maximum current value, and threshold value is set in advance, and is specifically set as how many suitable, can be determined according to actual conditions and experience,
The utility model does not limit.
Fig. 2 prevents the Control system architecture of air compressor machine exception start and stop from showing by the another kind that the utility model embodiment provides
It is intended to, as shown in Fig. 2, on the basis of the above embodiments, preferably embodiment further includes：Connect with controller 104
It connects, for the alarm module 201 when the prompt of air compressor machine exception alarm.
In order to ensure when air compressor machine breaks down, related staff can be known in time, which further includes
The alarm module 201 being connect with controller 104, alarm module 201 are preferably buzzer, but can be with other than buzzer
Indicator light, the utility model is selected not to limit.
It performs an analysis processing to the function of air compressor machine or the control efficiency of control system etc. for the ease of relevant personnel's later stage,
On the basis of the above embodiments, preferably embodiment, control system further include：
It is connect with controller 104, the information storing device of job information for storing air compressor machine.Later stage needs to data
Related data can be directly searched when analyzing processing from information storing device, it is convenient and simple and efficient.
On the basis of the above embodiments, preferably embodiment, control system further include：
It is connect with controller 104, for the information feedback device of feedback operation information to DCS.
In specific implementation, information feedback device can be voltmeter, such as can be by voltmeter equipment in air compressor machine
Input terminal, in real time by the real work Voltage Feedback of the air compressor machine to DCS, if voltage value and air compressor machine that DCS is received are normal
Theoretical voltage value when work is not inconsistent, then illustrate may air compressor machine break down or the control system in miscellaneous equipment occur therefore
Barrier, at this moment just needs that related staff is prompted to check.Information feedback device can be to the control of entire control system
Cheng Jinhang is fed back, and certainly, information feedback device may be satisfactory miscellaneous equipment, and the utility model does not limit.
Detailed Jie has been carried out to a kind of control system preventing air compressor machine exception start and stop provided by the utility model above
It continues.The principles of the present invention and embodiment are expounded with several examples herein, the explanation of above example,
It is merely used to help understand the method and its core concept of the utility model；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the utility model, there will be changes in the specific implementation manner and application range, in conclusion this specification
Content should not be construed as a limitation of the present invention, those skilled in the art, under the premise of no creative work, to this
Modification, equivalent replacement, improvement that utility model is made etc., should be included in the application.
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 operation is distinguished with another operation, without necessarily requiring or implying there are any between these entities or operation
This actual relationship or sequence.Moreover, the similar word such as term " comprising " so that unit, equipment including a series of elements
Or system includes not only those elements, but also include other elements that are not explicitly listed, or further include for this list
Member, equipment or the intrinsic element of system.
Claims (10)
1. a kind of control system preventing air compressor machine exception start and stop, which is characterized in that including：
DC power supply, the first dc switch, the second dc switch, controller and motor；
The first end of first dc switch and second dc switch is connect with one end of the DC power supply,
The second end of first dc switch and second dc switch is connect with the controller, the motor respectively with institute
Controller is stated to connect with the other end of the DC power supply；
The control instruction on or off that first dc switch and second dc switch are sent according to DCS, works as institute
It states controller and detects generation control when the working condition of first dc switch or second dc switch changes
Instruction controls the electric motor starting or stops controlling air compressor machine work.
2. the control system according to claim 1 for preventing air compressor machine exception start and stop, which is characterized in that first direct current
Switch is specially direct current separating brake relay, one group of normally closed contact of the direct current separating brake relay respectively with the controller the
One input terminal and the connection of the second input terminal.
3. the control system according to claim 2 for preventing air compressor machine exception start and stop, which is characterized in that second direct current
Switch is specially direct current closing relay, one group of normal opened contact of the direct current closing relay respectively with the controller the
Three input terminals and the connection of the 4th input terminal.
4. the control system according to claim 3 for preventing air compressor machine exception start and stop, which is characterized in that further include：
With the concatenated overcurrent protector of direct current closing relay, when the overcurrent protector detect the direct current close a floodgate after
When the current value of electric appliance is more than threshold value, the normal opened contact of the overcurrent protector is disconnected to protect the motor.
5. the control system according to claim 1 for preventing air compressor machine exception start and stop, which is characterized in that further include：
It is connect with the controller, for the alarm module when air compressor machine exception alarm prompt.
6. the control system according to claim 5 for preventing air compressor machine exception start and stop, which is characterized in that the alarm module
Specially buzzer.
7. the control system according to claim 1 for preventing air compressor machine exception start and stop, which is characterized in that further include：
It is connect with the controller, the information storing device of job information for storing the air compressor machine.
8. the control system according to claim 7 for preventing air compressor machine exception start and stop, which is characterized in that further include：
It is connect with the controller, for feeding back the job information to the information feedback device of the DCS.
9. the control system according to claim 1 for preventing air compressor machine exception start and stop, which is characterized in that the motor is specific
For series excitation commutator machine.
10. the control system for preventing air compressor machine exception start and stop according to claim 1 to 9 any one, which is characterized in that
The air compressor machine is specially L132-L250 screw-rod air compressors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142075.7U CN207945085U (en) | 2018-01-26 | 2018-01-26 | A kind of control system preventing air compressor machine exception start and stop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142075.7U CN207945085U (en) | 2018-01-26 | 2018-01-26 | A kind of control system preventing air compressor machine exception start and stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945085U true CN207945085U (en) | 2018-10-09 |
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ID=63702572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820142075.7U Active CN207945085U (en) | 2018-01-26 | 2018-01-26 | A kind of control system preventing air compressor machine exception start and stop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207945085U (en) |
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2018
- 2018-01-26 CN CN201820142075.7U patent/CN207945085U/en active Active
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