CN207686977U - Water ring vacuum pump breaks empty shutdown control circuit automatically - Google Patents
Water ring vacuum pump breaks empty shutdown control circuit automatically Download PDFInfo
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- CN207686977U CN207686977U CN201721911377.8U CN201721911377U CN207686977U CN 207686977 U CN207686977 U CN 207686977U CN 201721911377 U CN201721911377 U CN 201721911377U CN 207686977 U CN207686977 U CN 207686977U
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- solenoid valve
- vacuum
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Abstract
The utility model discloses a kind of water ring vacuum pumps to break empty shutdown control circuit, including starting or stopping control circuit automatically, for controlling water ring pump startup and stopping；Electric contact vacuum meter and solenoid valve are respectively arranged on vacuum line；Solenoid valve control circuit includes main stop button, and after pressing main stop button, solenoid valve actuation starts brokenly sky；When vacuum degree drops to electric contact vacuum meter upper limit, starting or stopping control circuit makes water ring pump stop；Solenoid valve is set to disconnect when vacuum degree drops to electric contact vacuum meter lower limit.The utility model, which only need to once be manually operated, can make vacuum system break empty shutdown automatically, effectively prevent not breaking sky directly by stop button due to maloperation, cause unit to be damaged, easy to operate, security performance greatly improves.And just solenoid valve is made to power off when vacuum degree reaches 0MPa, it prevents that because breaking due to blank pipe caliber is too small to cause motor and storage tank to break the equalization point formed between empty and air inlet empty problem can not be broken completely.
Description
Technical field
The utility model is related to a kind of technical field of vacuum equipment, and in particular to a kind of water ring vacuum pump broken empty shutdown automatically
Control circuit.
Background technology
Eccentric rotor with fixed blade is housed in water ring vacuum pump, is by water（Liquid）Throw to stator wall, water（Liquid）
The pendular ring concentric with stator is formed, pendular ring constitutes a kind of rotary volume-variable product vacuum pump of variable volume together with rotor blade.
In industrial many technical process, such as vacuum filter, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum
Moisture regain and vacuum outgas etc., water ring pump is widely used.
It is existing water ring vacuum pump two places control circuit, including water ring pump starting or stopping control circuit as shown in Figure 1, including starts
Button SG '（SG）, stop button SR '（SR）, the first relay KA1, the second relay KA2 and control protect switch 1KBO, for controlling
Water ring pump startup processed and stopping；Water ring vacuum pump is protected switch 1KB0 main contacts and breaker by circuit for controlling motor by control successively
QF is connected to three phase mains.Specific work process is：When starting operation, start button SG ' is pressed（SG）, control guarantor's switch 1KBO lines
Enclose electric, KA1 normally opened contacts closure, self-insurance, water ring pump electric motor starting start to vacuumize.When shutdown, it is broken that air valve is opened manually
Then sky presses stop button SR '（SR）, water ring pump motor is out of service.
In production process, stop button SR ' is directly pressed since maloperation is broken empty, cause motor operation direction with
The reaction force in pipe network negative pressure direction, vacuum pump body impeller is damaged, which reprocesses long in time limit, influences normally to produce.
Utility model content
The purpose of this utility model is to provide a kind of water ring pump and breaks empty shutdown control circuit automatically, to overcome in the prior art
The problem of causing unit to be damaged due to maloperation.
To achieve the above object, the utility model adopts the following technical solution：A kind of water ring vacuum pump broken empty shutdown automatically
Control circuit, including starting or stopping control circuit further include for controlling water ring pump startup and stopping：Electric contact vacuum meter and electromagnetism
Valve is respectively arranged on vacuum line；Solenoid valve control circuit, including stop button, it is described after pressing the stop button
Solenoid valve actuation starts brokenly sky；When vacuum degree drops to the electric contact vacuum meter upper limit, starting or stopping control circuit makes water ring
Pump stops；When vacuum degree drops to the electric contact vacuum meter lower limit, the solenoid valve is made to disconnect.
Further, the starting or stopping control circuit, including the 4th relay normally closed contact, one end be connected to phase line L1,
One end of switch auxiliary normally opened contact one is protected in one end of 6th relay normally closed contact and control, and the other end passes sequentially through third relay
Device normally opened contact one and the 6th relay coil are connected to zero curve；The other end of 6th relay normally closed contact passes sequentially through
Start button, control protect switch coil and are connected to zero curve；The start button both ends are parallel with the first relay normally open contact, described
The other end that switch auxiliary normally opened contact one is protected in control is connected to zero curve by the first relay coil.
Further, the stop button of the solenoid valve control circuit, one end are connected to the 4th relay
Normally-closed contact one end, the other end are connected to one end, electric contact vacuum meter upper limit and the lower limit of the 5th relay normally closed contact
One end, the other end of the 5th relay normally closed contact is connected to zero curve, the electric contact by third relay coil
The other end of vacuum meter upper limit is connected to zero curve by the 4th relay coil, and the electric contact vacuum meter lower limit passes through
Five relay coils are connected to zero curve；The stop button both ends are parallel with third relay normally open contact two, the third after
The electric apparatus coil both ends solenoid valve in parallel.
Further, the start button includes the live start button being connected in parallel and strange land start button；It is described to stop
Only button includes the live stop button being connected in series with and strange land stop button.
Further, one end of the stop button is connected to phase line by switching knob.
Further, the starting or stopping control circuit and solenoid valve control circuit are connected to phase line and zero curve by air switch
N。
Further, the starting or stopping control circuit further includes the second relay, and the control protects switch coil by described the
Two relay normally closed contacts are connected to zero curve, and one end that switch auxiliary normally opened contact two is protected in the control is connected to phase line, the other end
It is connected to zero curve by second relay coil, for carrying out overload protection.
Further, further include circuit for controlling motor, including breaker, one end is connected to three electricity, and the other end passes through control
It protects switch main contacts and is connected to Water-ring vacuum pump motor.
The utility model has the beneficial effects that：Original manual air valve is replaced by solenoid valve control, after production
Stop button is pressed, only need to once be manually operated can make vacuum system break empty shutdown automatically, be needed with the prior art manual twice
Operation is compared, and effectively prevents not breaking sky directly by stop button due to maloperation, unit is caused to be damaged, easy to operate, peace
Full performance greatly improves.And just solenoid valve is made to power off when vacuum degree reaches 0MPa, prevent the electricity caused by broken blank pipe caliber is too small
Machine and storage tank break the equalization point formed between empty and air inlet and can not break empty problem completely.
Description of the drawings
Fig. 1 is existing water ring vacuum pump two places control circuit.
Fig. 2 is that the utility model embodiment water ring vacuum pump breaks empty shutdown control circuit automatically.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It is illustrated in figure 2 the utility model embodiment water ring vacuum pump and breaks empty shutdown control circuit, including start and stop control automatically
Circuit processed, for controlling water ring pump startup and stopping, including the 4th relay KA4 normally-closed contacts, one end be connected to phase line L1,
One end of switch 1KBO auxiliary normally opened contacts one is protected in one end of 6th relay KA6 normally-closed contacts and control, and the other end passes sequentially through
One KA3-1 of third relay KA3 normally opened contacts and the 6th relay KA6 coils are connected to zero curve N；The 6th relay KA6
The other end of normally-closed contact passes sequentially through start button SG, SG ', control protects switch 1KBO coils and is connected to zero curve N；The startup is pressed
The both ends button SG, SG ' are parallel with the first relay KA1 normally opened contacts, and the another of switch 1KBO auxiliary normally opened contacts one is protected in the control
End is connected to zero curve N by the first relay KA1 coils
Circuit for controlling motor, including circuit breaker Q F, one end are connected to three electricity, and the other end is protected switch 1KBO master by control and touched
Point is connected to Water-ring vacuum pump motor.
The utility model increases electric contact vacuum meter and solenoid valve YV1 newly on vacuum line, further includes solenoid valve control electricity
Road, including stop button SR, SR ', one end is connected to described 4th relay KA4 normally-closed contacts one end, and the other end is connected to
One end of 5th relay KA5 normally-closed contacts, one end of electric contact vacuum meter upper limit JY1-1 and lower limit JY1-2, described
The other end of five relay KA5 normally-closed contacts is connected to zero curve N, the electric contact vacuum meter by third relay KA3 coils
The other end of upper limit JY1-1 is connected to zero curve N, the electric contact vacuum meter lower limit by the 4th relay KA4 coils
JY1-2 is connected to zero curve N by the 5th relay KA5 coils；The stop button SR, the both ends SR ' are parallel with third relay
Two KA3-2 of KA3 normally opened contacts, the third relay KA3 coils both ends solenoid valve YV1 in parallel.
In the present embodiment, start button SG, SG ' include that the live start button SG ' being connected in parallel and strange land are opened
Dynamic button SG；Described stop button SR, SR ' include the live stop button SR ' being connected in series with and strange land stop button SR, it can be into
Row two places control.
In the present embodiment, described stop button SR, SR ' one end phase line L1 is connected to by switching knob SA1, existing
Field increases rotary switch SA1 newly, controls emergent shutdown use.Automated contact BA can be set simultaneously, can be used for daemon software operation.
In order to carry out overload protection to circuit, on the one hand, the starting or stopping control circuit and solenoid valve control circuit pass through sky
Air cock 3QF is connected to phase line L1 and zero curve N；On the other hand, starting or stopping control circuit further includes the second relay KA2, the control
It protects switch 1KBO coils and zero curve N is connected to by the second relay KA2 normally-closed contacts, it is normal that switch 1KBO auxiliary is protected in the control
The one end for opening contact two is connected to phase line L1, and the other end is connected to zero curve N by the second relay KA2 coils.Control is protected and is opened
The states such as operation, overload, dropout can also be indicated by closing 1KBO.
The utility model control circuit coordinates relay on-off using electric contact vacuum meter high-low position contact, to realize certainly
The purpose shut down after dynamic broken sky.When vacuum system normal operation, vacuum degree is more than -0.09MPa, the electric contact vacuum meter upper limit
It is set as -0.05MPa, lower limit is set as 0MPa, electric contact vacuum meter upper limit contact closure；When press stop button SR or
When SR ', solenoid valves start brokenly sky, and when vacuum degree is less than upper limit setting -0.05MPa, motor is out of service, works as vacuum
When spending arrival lower limit 0MPa, solenoid valve power-off can prevent to achieve the purpose that be shut down after breaking sky automatically because of broken blank pipe pipe
Diameter is too small to be caused to form equalization point between motor and the broken empty and air inlet of storage tank and can not break empty problem completely, especially suitable for broken
Blank pipe diameter≤DN25 vacuum systems.Original manual air valve is replaced by solenoid valve control, it only need to be by one after production
Secondary stop button can make vacuum system break empty shutdown automatically, compared with the prior art needs to be manually operated twice, effectively avoid
Due to maloperation, broken sky directly presses stop button, causes unit to be damaged, easy to operate, security performance greatly improves.
In short, the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all
All any modification, equivalent and improvement made within spirit of the present utility model and principle etc., should be included in this practicality
Within novel protection domain.
Claims (8)
1. a kind of water ring vacuum pump breaks empty shutdown control circuit, including starting or stopping control circuit automatically, for controlling water ring pump startup
And stopping, which is characterized in that further include：
Electric contact vacuum meter and solenoid valve（YV1）, it is respectively arranged on vacuum line；
Solenoid valve control circuit, including stop button（SR, SR '）, when pressing the stop button（SR, SR '）Afterwards, the electromagnetism
Valve actuation starts brokenly sky；When vacuum degree drops to the electric contact vacuum meter upper limit, starting or stopping control circuit makes water ring pump stop
Only；When vacuum degree drops to the electric contact vacuum meter lower limit, the solenoid valve is made to disconnect.
2. a kind of water ring vacuum pump according to claim 1 breaks empty shutdown control circuit automatically, which is characterized in that described
Starting or stopping control circuit, including the 4th relay（KA4）Normally-closed contact, one end are connected to phase line L1, the 6th relay（KA6）Often
Switch is protected in one end of closed contact and control（1KBO）One end of normally opened contact one, the other end is assisted to pass sequentially through third relay
（KA3）Normally opened contact one（KA3-1）With the 6th relay（KA6）Coil is connected to zero curve N；6th relay（KA6）Often
The other end of closed contact passes sequentially through start button（SG, SG '）, control protect switch（1KBO）Coil is connected to zero curve N；The startup
Button（SG, SG '）Both ends are parallel with the first relay（KA1）Switch is protected in normally opened contact, the control（1KBO）Assist normally opened contact
One other end passes through the first relay（KA1）Coil is connected to zero curve N.
3. a kind of water ring vacuum pump according to claim 2 breaks empty shutdown control circuit automatically, which is characterized in that the electricity
The stop button of magnet valve control circuit（SR, SR '）, one end is connected to the 4th relay（KA4）Normally-closed contact one
End, the other end are connected to the 5th relay（KA5）One end of normally-closed contact, electric contact vacuum meter upper limit（JY1-1）And lower limit
Position（JY1-2）One end, the 5th relay（KA5）The other end of normally-closed contact passes through third relay（KA3）Coil connects
It is connected to zero curve N, the electric contact vacuum meter upper limit（JY1-1）The other end pass through the 4th relay（KA4）Coil is connected to
Zero curve N, the electric contact vacuum meter lower limit（JY1-2）Pass through the 5th relay（KA5）Coil is connected to zero curve N；It is described to stop
Only button（SR, SR '）Both ends are parallel with third relay（KA3）Normally opened contact two（KA3-2）, the third relay（KA3）
The coil both ends solenoid valve in parallel（YV1）.
4. a kind of water ring vacuum pump according to claim 2 or 3 breaks empty shutdown control circuit automatically, which is characterized in that institute
State start button（SG, SG '）Including the live start button being connected in parallel（SG’）With strange land start button（SG）；The stopping
Button（SR, SR '）Including the live stop button being connected in series with（SR’）With strange land stop button（SR）.
5. a kind of water ring vacuum pump according to claim 1-3 any one breaks empty shutdown control circuit, feature automatically
It is, the stop button（SR, SR '）One end phase line L1 is connected to by switching knob SA1.
6. a kind of water ring vacuum pump according to claim 1-3 any one breaks empty shutdown control circuit, feature automatically
It is, the starting or stopping control circuit and solenoid valve control circuit pass through air switch（3QF）It is connected to phase line L1 and zero curve N.
7. a kind of water ring vacuum pump according to claim 2 or 3 breaks empty shutdown control circuit automatically, which is characterized in that institute
It further includes the second relay to state starting or stopping control circuit（KA2）, the control, which is protected, to be switched（1KBO）Coil passes through second relay
（KA2）Normally-closed contact is connected to zero curve N, and switch is protected in the control（1KBO）One end of auxiliary normally opened contact two is connected to phase line L1,
The other end passes through second relay（KA2）Coil is connected to zero curve N, for carrying out overload protection.
8. a kind of water ring vacuum pump according to claim 2 or 3 breaks empty shutdown control circuit automatically, which is characterized in that also
Including circuit for controlling motor, including breaker（QF）, one end be connected to three electricity, the other end pass through control protect switch（1KBO）It is main to touch
Point is connected to Water-ring vacuum pump motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721911377.8U CN207686977U (en) | 2017-12-30 | 2017-12-30 | Water ring vacuum pump breaks empty shutdown control circuit automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721911377.8U CN207686977U (en) | 2017-12-30 | 2017-12-30 | Water ring vacuum pump breaks empty shutdown control circuit automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686977U true CN207686977U (en) | 2018-08-03 |
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ID=62993972
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721911377.8U Active CN207686977U (en) | 2017-12-30 | 2017-12-30 | Water ring vacuum pump breaks empty shutdown control circuit automatically |
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| Country | Link |
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| CN (1) | CN207686977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194361A (en) * | 2017-12-30 | 2018-06-22 | 浙江尖峰药业有限公司 | Water ring vacuum pump breaks empty shutdown control circuit automatically |
-
2017
- 2017-12-30 CN CN201721911377.8U patent/CN207686977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194361A (en) * | 2017-12-30 | 2018-06-22 | 浙江尖峰药业有限公司 | Water ring vacuum pump breaks empty shutdown control circuit automatically |
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