CN206892702U - A kind of water supply installation of vacuum pump set - Google Patents
A kind of water supply installation of vacuum pump set Download PDFInfo
- Publication number
- CN206892702U CN206892702U CN201720759091.6U CN201720759091U CN206892702U CN 206892702 U CN206892702 U CN 206892702U CN 201720759091 U CN201720759091 U CN 201720759091U CN 206892702 U CN206892702 U CN 206892702U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- vacuum pump
- water
- pump set
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of water supply installation of vacuum pump set, including supply tank and power supply, supply tank is arranged at the top of cabinet, the bottom of the supply tank is provided with the water-supply-pipe for being used for connecting cabinet, cabinet bottom is provided with discharge outlet, the first magnetic valve and second solenoid valve are respectively equipped with water-supply-pipe and discharge outlet, pressure sensor is provided with water-supply-pipe；Also include first control circuit and second control circuit；First control circuit couples with pressure sensor, controls the first magnetic valve to be turned on and off to export corresponding first voltage value according to pressure sensor；Second control circuit includes detection circuit and execution circuit, detection circuit exports corresponding second voltage value according to the temperature height in cabinet, execution circuit and detection circuit coupling, are turned on and off with the second voltage value control second solenoid valve according to detection circuit output.Above technical scheme solves artificially carries out moisturizing or draining appearance to cabinet, easily causes the problem of careless omission causes vacuum pump set to damage.
Description
Technical field
Vacuum pump set is the utility model is related to, more particularly to a kind of water supply installation of vacuum pump set.
Background technology
The vacuum pump set used now can all carry a water tank, and vacuum pump set needs to carry out its cabinet before starting
Moisturizing, if can not timely moisturizing, cause water tank lacks water often occur without the phenomenon of vacuum, unit can be caused to damage.
Secondly, relatively low in winter temperature, the situation of icing occurs in the water in cabinet in the case of low temperature, so Ying Ji
Water in case is drained before condensation, prevents that vacuum pump set is caused to damage.
But cabinet moisturizing or draining are all manually operated now, occur that artificial careless omission causes unavoidably
The damage of vacuum pump set.
Utility model content
The purpose of this utility model is to provide a kind of water supply installation of vacuum pump set, solves and artificially carries out moisturizing to cabinet
Or draining is held, and easily causes the problem of careless omission causes vacuum pump set to damage.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of confession of vacuum pump set
Water installations, including supply tank and power supply, supply tank are arranged at the top of cabinet, and the bottom of the supply tank, which is provided with, to be used to connect machine
The water-supply-pipe of case, cabinet bottom are provided with discharge outlet, the first magnetic valve and second solenoid valve are respectively equipped with water-supply-pipe and discharge outlet,
Pressure sensor is provided with water-supply-pipe；
Also include the first magnetic valve of control, the first control circuit that second solenoid valve is turned on and off and the second control electricity
Road；
First control circuit couples with pressure sensor, is controlled with exporting corresponding first voltage value according to pressure sensor
First magnetic valve is turned on and off；
Second control circuit includes detection circuit and execution circuit, and detection circuit is according to the temperature height output phase in cabinet
The second voltage value answered, execution circuit and detection circuit coupling, with the second voltage value control second according to detection circuit output
Magnetic valve is turned on and off.
By using above-mentioned technical proposal：Supply tank is supplied water by water-supply-pipe for cabinet, and the first magnetic valve is arranged at water delivery
In pipe, play a part of controlling water-supply-pipe on or off；Second solenoid valve is arranged in discharge outlet, is played control discharge outlet and is opened
The effect opened or closed；
The early-stage preparations stage of vacuum pump set is being opened, is opening first control circuit, pressure sensor output first voltage
Value, the first voltage value that control circuit exports according to pressure sensor control being turned on and off for the first magnetic valve, reach basis
Water level conditions in cabinet are the purpose of cabinet moisturizing.Wherein, pressure sensor has the hydraulic pressure size according to cabinet bottom defeated
Go out corresponding first voltage value, and the size of first voltage value of pressure sensor output and the hydraulic pressure size of cabinet bottom into
Direct ratio, when the water level in cabinet is not up to preset value, the first magnetic valve is under the control of first control circuit in unlatching
State, play a part of to the timely moisturizing of cabinet, until the first closed electromagnetic valve when the water level in cabinet reaches preset value；
After vacuum pump set use, detection circuit plays the temperature of water in detection cabinet, and is exported according to the temperature of water
Corresponding second voltage value, the size of second voltage value and the height of water temperature are linear, when the water temperature in cabinet is less than preset value
When, detection circuit exports second voltage value to execution circuit, and execution circuit is under the triggering of second voltage value by second solenoid valve
Open, prevent the water in cabinet from being condensed under low temperature, vacuum pump set is caused to damage.Above technical scheme solves artificial right
Cabinet carries out moisturizing or draining is held, and easily causes the problem of careless omission causes vacuum pump set to damage.
Preferably, the first control circuit includes triggers circuit, the first trigger element and first switch, the first triggering
Element, first switch and the first magnetic valve are connected in series on power supply, and triggers circuit is coupled with according to pressure with pressure sensor
The first voltage value of force snesor output, the first trigger signal of output control the first trigger element on or off.
By using above-mentioned technical proposal：Triggers circuit plays the size of the first voltage value exported according to pressure sensor
Corresponding first trigger signal is exported, the first trigger signal plays a part of controlling the first trigger element to be turned on and off；First
Trigger element plays a part of switch, being turned on and off for the first magnetic valve of control, the water in supply tank is transported in cabinet；
First switch is arranged on supply tank, when vacuum pump set is in off working state, it is necessary to which first switch is disconnected, is avoided the occurrence of
While cabinet draining, the first magnetic valve is opened to cabinet moisturizing.
Preferably, first trigger element is the first NPN triode, and colelctor electrode and the power supply of the first NPN triode connect
Connect, base stage is used to receive the first trigger signal, and emitter stage is connected with one end of the first magnetic valve, another termination of the first magnetic valve
Ground.
By using above-mentioned technical proposal：First NPN triode has a high voltage conducting, the characteristic of low-voltage cut-off, when
When first NPN triode turns on, the first magnetic valve is opened；When the first NPN triode is ended, the first closed electromagnetic valve.
Preferably, the triggers circuit includes Schmidt trigger, the input and pressure sensor of Schmidt trigger
Output end connection, the trigger signal of output end first of Schmidt trigger.
By using above-mentioned technical proposal：Schmidt trigger has two default voltage thresholds, and one of them is height
Voltage threshold, another is low voltage threshold.When the first voltage value of input exceedes predetermined high voltage threshold, Schmidt touches
Hair device enters low-voltage output state and keeps the state, when the first voltage value of input reaches predetermined low voltage threshold,
Schmidt trigger output will be switched to high voltage and keep the state, be changed when reaching high voltage threshold.Shi Mi
The output end of the input of special trigger and pressure sensor connects, when the hydraulic pressure in drainpipe is relatively low, pressure sensor it is defeated
Going out first voltage value and be less than low voltage threshold, Schmidt trigger output HIGH voltage simultaneously triggers the conducting of the first NPN triode, and first
Magnetic valve is opened, supply tank moisturizing into cabinet by water-supply-pipe；When the water in cabinet reaches predetermined water level, first pressure passes
Sensor exports higher first voltage value and is more than high voltage threshold, and Schmidt trigger output low-voltage simultaneously makes the poles of the first NPN tri-
Pipe ends, closed electromagnetic valve.Complete to automatically control the first NPN triode on or off by the characteristic of Schmidt trigger
Effect.
Preferably, the detection circuit includes thermistor, operational amplifier, reference voltage and the first divider resistance；
The thermistor is arranged in discharge outlet, and one end of the first divider resistance is connected with power supply, the other end and temperature-sensitive
Resistance is connected, and thermistor is connected to ground；
The normal phase input end connection of node and operational amplifier between first divider resistance and thermistor, operation amplifier
The inverting input of device is connected with reference voltage, and the output end of operational amplifier is used to export second voltage value.
By using above-mentioned technical proposal：Thermistor has thermally sensitive characteristic, and being changing into temperature
Linear change, the first divider resistance play a part of partial pressure, therefore on the node between the first divider resistance and thermistor
Voltage linearly changes with the conversion of temperature, when the magnitude of voltage on the node exceedes reference voltage, operational amplifier output
High voltage,
Preferably, the thermistor is negative temperature coefficient thermistor.
By using above-mentioned technical proposal：Negative temperature coefficient thermistor have with the temperature in cabinet reduction its
The characteristic of resistance value increase, its resistance and temperature are in inverse ratio, and with the stable opering characteristic of electric apparatus, when the temperature in cabinet is low to pre-
During definite value, the voltage triggered operational amplifier output HIGH voltage value of 2 points of negative temperature coefficient thermistor.
Preferably, the execution circuit includes the second NPN triode, and the colelctor electrode of the second NPN triode is connected with power supply,
Base stage is used to receive second voltage value, one end connection of emitter stage and second solenoid valve, the other end ground connection of second solenoid valve.
By using above-mentioned technical proposal：Second NPN triode has a high voltage conducting, the characteristic of low-voltage cut-off, when
When second NPN triode turns on, second solenoid valve is opened；When the second NPN triode is ended, second solenoid valve is closed
Preferably, a second switch in parallel in second NPN triode.
By using above-mentioned technical proposal：Second switch is played when the temperature in cabinet is not up to predetermined temperature, also may be used
So that second solenoid valve to be opened, cabinet is set to be easy in time carry out cabinet when breaking down in cabinet by discharge outlet draining
Repair.
In summary, the utility model has the advantages that：
1st, the early-stage preparations stage of vacuum pump set is being opened, moisturizing is carried out to it automatically according to cabinet inside water level conditions,
Water tank lacks water is prevented without the phenomenon of vacuum, causes the damage of vacuum pump set；
2nd, when temperature in chassis is relatively low, in order to prevent water condensation, second solenoid valve is opened in time, arranges water in cabinet
Go out, prevent the water in cabinet from being condensed under low temperature, vacuum pump set is caused to damage.
Brief description of the drawings
Fig. 1 is the plan of water supply installation in the present embodiment；
Fig. 2 is the circuit diagram of the present embodiment.
In figure：1st, supply tank；2nd, cabinet；3rd, water-supply-pipe；4th, discharge outlet；5th, first control circuit；6th, second control circuit；
7th, circuit is detected；8th, execution circuit；9th, triggers circuit；10th, support frame.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of water supply installation of vacuum pump set, as shown in Figure 1, 2, including support frame 10, supply tank 1 and power supply, support frame
10 are used to fixing, supporting supply tank 1, and the top that supply tank 1 is arranged at cabinet 2 is used to supply water for cabinet 2.The bottom of supply tank 1
Provided with the water-supply-pipe 3 for connecting cabinet 2, the bottom of cabinet 2 is provided with discharge outlet 4, is respectively equipped with water-supply-pipe 3 and discharge outlet 4
First magnetic valve M1 and second solenoid valve M2, water-supply-pipe 3 is interior to be provided with pressure sensor.It is additionally provided with supply tank 1 for controlling
The first control circuit 5 and second control circuit 6 that first magnetic valve M1, second solenoid valve M2 are turned on and off.
As shown in Fig. 2 first control circuit 5 and pressure sensor couple, with according to pressure sensor output corresponding the
One magnitude of voltage controls the first magnetic valve M1 to be turned on and off.First control circuit 5 include triggers circuit 9, the first trigger element with
And first switch K1, triggers circuit 9 couple the first voltage value to be exported according to pressure sensor, output control with pressure sensor
Make the first trigger signal of the first trigger element on or off.Triggers circuit 9 includes Schmidt trigger TR, schmidt trigger
Device TR input and the output end of pressure sensor connect, the Schmidt trigger TR trigger signal of output end first.At this
The first trigger element is the first NPN triode Q1 in embodiment, and colelctor electrode and the power supply of the first NPN triode Q1 connect VCC and connect, base
Pole is connected with Schmidt trigger TR output end, and emitter stage is connected with the first magnetic valve M1 one end, the first magnetic valve M1's
The other end is grounded.
As shown in Fig. 2 second control circuit 6 includes detection circuit 7 and execution circuit 8, detection circuit 7 includes temperature-sensitive electricity
Resistance, operational amplifier IO, reference voltage U and the first divider resistance R1.Thermistor is negative temperature coefficient in the present embodiment
Thermal resistor NTC.Negative temperature coefficient thermistor NTC is arranged in discharge outlet 4, the first divider resistance R1 one end and electricity
Source VCC connections, the other end are connected with negative temperature coefficient thermistor NTC, and negative temperature coefficient thermistor NTC connects with ground
Connect.The positive of node and operational amplifier IO between first divider resistance R1 and negative temperature coefficient thermistor NTC inputs
End connection, operational amplifier IO inverting input be connected with reference voltage U, and operational amplifier IO output end is for output the
Two magnitudes of voltage.
As shown in Fig. 2 execution circuit 8 includes the second NPN triode Q2, colelctor electrode and the power supply VCC of the second NPN triode
Connection, base stage are connected with operational amplifier IO output end, and emitter stage is connected with second solenoid valve M2 one end, second solenoid valve
M2 other end ground connection.At the same time, one second switch K2 of parallel connection, second switch K2 pass through on the second NPN triode Q2
Second divider resistance R2 is connected with second solenoid valve M2.Detection circuit 7 exports corresponding second according to the temperature height in cabinet 2
Magnitude of voltage, execution circuit 8 are coupled with detection circuit 7, and second solenoid valve is controlled with the second voltage value exported according to detection circuit 7
M2 is turned on and off.
Use process and principle：The early-stage preparations stage of vacuum pump set is being opened, is opening first control circuit 5, pressure passes
Sensor exports first voltage value.When the first voltage value of input exceedes predetermined high voltage threshold, Schmidt trigger TR enters
Low-voltage output state simultaneously keeps the state, and when the first voltage value of input reaches predetermined low voltage threshold, Schmidt touches
The TR outputs of hair device will be switched to high voltage output state and keep the state, be changed when reaching high voltage threshold.When
Water level in drainpipe is relatively low, the pressure hour in discharge outlet 4, and the output first voltage value of pressure sensor is less than low-voltage threshold
Value, Schmidt trigger TR output HIGH voltages simultaneously trigger the conducting of the first NPN triode, and the first magnetic valve M1 is opened, and supply tank 1 is logical
Cross the moisturizing into cabinet 2 of water-supply-pipe 3；When the water in cabinet 2 reaches predetermined water level, first pressure sensor exports higher by the
One magnitude of voltage is more than high voltage threshold, and Schmidt trigger TR output low-voltages simultaneously end the first NPN triode, the first electromagnetism
Valve M1 is closed.
After vacuum pump set use, detection circuit 7 plays the temperature of water in detection cabinet 2, and defeated according to the temperature of water
Go out corresponding second voltage value, the size of second voltage value and the height of water temperature are linear, when the water temperature in cabinet 2 is less than default
During value, detection circuit 7 exports second voltage value to execution circuit 8, and execution circuit 8 is under the triggering of second voltage value by the second electricity
Magnet valve M2 is opened, and cabinet 2 is discharged water therein by discharge outlet 4.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of water supply installation of vacuum pump set, including supply tank (1), cabinet（2）And power supply, supply tank (1) are arranged at cabinet
(2) top, it is characterised in that the bottom of the supply tank (1) is provided with the water-supply-pipe (3) for being used for connecting cabinet (2), cabinet
(2) bottom is provided with discharge outlet (4), and the first magnetic valve and second solenoid valve are respectively equipped with water-supply-pipe (3) and discharge outlet (4), defeated
Pressure sensor is provided with water pipe (3)；
Also include the first magnetic valve of control, the first control circuit (5) and second control circuit that second solenoid valve is turned on and off
(6)；
First control circuit (5) couples with pressure sensor, is controlled with exporting corresponding first voltage value according to pressure sensor
First magnetic valve is turned on and off；
Second control circuit (6) includes detection circuit (7) and execution circuit (8), and detection circuit (7) is according to the temperature in cabinet (2)
Degree height exports corresponding second voltage value, and execution circuit (8) couples with detection circuit (7), with according to detection circuit (7) output
Second voltage value control second solenoid valve be turned on and off.
A kind of 2. water supply installation of vacuum pump set according to claim 1, it is characterised in that：The first control circuit
(5) triggers circuit (9), the first trigger element and first switch, the first trigger element, first switch and the first electromagnetism are included
Valve is connected in series on power supply, and triggers circuit (9) couples the first voltage to be exported according to pressure sensor with pressure sensor
Value, the first trigger signal of output control the first trigger element on or off.
A kind of 3. water supply installation of vacuum pump set according to claim 2, it is characterised in that：First trigger element is
First NPN triode, the colelctor electrode of the first NPN triode are connected with power supply, and base stage is used to receive the first trigger signal, emitter stage
It is connected with one end of the first magnetic valve, the other end ground connection of the first magnetic valve.
A kind of 4. water supply installation of vacuum pump set according to claim 3, it is characterised in that：Triggers circuit (9) bag
Include Schmidt trigger, the input of Schmidt trigger and the output end of pressure sensor connect, Schmidt trigger it is defeated
Go out the first trigger signal of end.
A kind of 5. water supply installation of vacuum pump set according to claim 1, it is characterised in that：Detection circuit (7) bag
Include thermistor, operational amplifier, reference voltage and the first divider resistance；
The thermistor is arranged in discharge outlet (4), and one end of the first divider resistance is connected with power supply, the other end and temperature-sensitive electricity
Resistance connection, thermistor are connected to ground；
The normal phase input end connection of node and operational amplifier between first divider resistance and thermistor, operational amplifier
Inverting input is connected with reference voltage, and the output end of operational amplifier is used to export second voltage value.
A kind of 6. water supply installation of vacuum pump set according to claim 5, it is characterised in that：The thermistor is subzero temperature
Spend coefficient thermal resistor.
A kind of 7. water supply installation of vacuum pump set according to claim 6, it is characterised in that：Execution circuit (8) bag
The second NPN triode is included, the colelctor electrode of the second NPN triode is connected with power supply, and base stage is used to receive second voltage value, emitter stage
It is connected with one end of second solenoid valve, the other end ground connection of second solenoid valve.
A kind of 8. water supply installation of vacuum pump set according to claim 7, it is characterised in that：Second NPN triode
A upper second switch in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759091.6U CN206892702U (en) | 2017-06-27 | 2017-06-27 | A kind of water supply installation of vacuum pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759091.6U CN206892702U (en) | 2017-06-27 | 2017-06-27 | A kind of water supply installation of vacuum pump set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206892702U true CN206892702U (en) | 2018-01-16 |
Family
ID=61317305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720759091.6U Expired - Fee Related CN206892702U (en) | 2017-06-27 | 2017-06-27 | A kind of water supply installation of vacuum pump set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206892702U (en) |
-
2017
- 2017-06-27 CN CN201720759091.6U patent/CN206892702U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203259263U (en) | Temperature detection device with compensation | |
| CN103676988A (en) | Water level detection control circuit applied to draining pump and working method thereof | |
| CN205882483U (en) | Electric power system high pressure becomes electricity distribution room air conditioner monitoring system device | |
| CN206892702U (en) | A kind of water supply installation of vacuum pump set | |
| CN206329476U (en) | Water pump controller | |
| CN203339998U (en) | Compressor soft start controller and compressor | |
| CN205727448U (en) | A kind of small-sized automatic-watering circuit | |
| CN206788613U (en) | A kind of intelligent switch | |
| CN208190075U (en) | Intelligent operation control device of switch cabinet | |
| CN104656477B (en) | The electric power system and its control method of air-source water heater | |
| CN204497657U (en) | intelligent network display system | |
| CN206441115U (en) | Starting key circuit and electronic equipment | |
| CN209562139U (en) | A kind of differential voltage protection circuit | |
| CN206178646U (en) | Multichannel burns power supply unit of record ware | |
| CN105703772B (en) | AD detection circuit and electric cooking pot with it | |
| CN105278405B (en) | A kind of flip-type electronic equipment and its on/off circuit | |
| CN104678854A (en) | Remote controller, temperature sampling control system and temperature sampling control method | |
| CN209201040U (en) | A kind of switch driving circuit, controller and electronic equipment | |
| CN204462741U (en) | Large-sized concrete temperature collecting device | |
| CN209267219U (en) | Power supply switch circuit and electronic equipment | |
| CN206562638U (en) | HVAC pipe-line system | |
| CN204788711U (en) | Temperature signal acquisition module and temperature instrument | |
| CN201926699U (en) | Low-voltage circuit for power failure detection | |
| CN207782448U (en) | A kind of charging control circuit and electronic product | |
| CN207316195U (en) | Solenoid valve control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20200627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |