CN209371534U - A kind of adjustable control system of water level protection water temperature - Google Patents
A kind of adjustable control system of water level protection water temperature Download PDFInfo
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- CN209371534U CN209371534U CN201822040862.3U CN201822040862U CN209371534U CN 209371534 U CN209371534 U CN 209371534U CN 201822040862 U CN201822040862 U CN 201822040862U CN 209371534 U CN209371534 U CN 209371534U
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- major loop
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- water temperature
- control system
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Abstract
The utility model discloses a kind of adjustable control systems of water level protection water temperature, including major loop, secondary control loop and the liquid-level switch and thermocouple being set in water container；The major loop includes that three firewires L1, L2, L3 and the heater connecting with three firewires and major loop contactor KM1, the heater go deep into water container；The secondary control loop is connect with major loop, including a firewire L1 ', fluid level controller, temperature controller, automatic/hand running control circuit and the DC power supply powered for secondary control loop, the firewire L1 ' of secondary control loop is connect with the firewire L1 of major loop, the input terminal of the fluid level controller is connect with liquid-level switch, output end and major loop connect, and the input terminal of the temperature controller is connect with thermocouple, output end is connect by automatic/hand running control circuit with major loop.The system is able to achieve the intelligent control of water temperature and water level, and water temperature is adjustable when heating, prevents anhydrous dry combustion method.
Description
Technical field
The utility model relates to technical field of circuit control, and in particular to a kind of adjustable control system of water level protection water temperature
System.
Background technique
With the quickening of modern life rhythm, people's lives mode and diet style are had changed a lot, fast food
It is not only time saving but also economical for office worker, so Chinese fast food industry development in recent years is very fast.Currently, fast food restaurant is general
All over using hot water to meal insulation, but be typically all service plate is placed on above sink filled with hot water, to the water inside sink without
Method heating, just can not play insulation effect, poor effect to food after water is cool；In addition, the ground such as family, office building and mall
Fang Douhui uses hot water to some extent, but these use the place of hot water, if water level and water temperature control are bad, no
It simply fails to reach required water temperature, it is also possible to which the dry combustion method for causing Vessel for heating water brings security risk.
Utility model content
The utility model provides a kind of adjustable control system of water level protection water temperature to overcome the shortcomings of the above technology
System, the system are able to achieve the intelligent control of water temperature and water level, and water temperature is adjustable when heating, prevent anhydrous dry combustion method, and can from
Dynamic control can also manually control, and can select control mode according to the actual situation.
The utility model overcomes the technical solution used by its technical problem to be:
A kind of adjustable control system of water level protection water temperature, including major loop, secondary control loop and it is set to the water capacity
Liquid-level switch and thermocouple in device；
The major loop includes three firewires L1, L2, L3 and contacts with the heater of three firewires connection and major loop
Device KM1, the heater go deep into water container；
The secondary control loop is connect with major loop, including a firewire L1 ', fluid level controller, temperature controller, it is automatic/
Manual running control circuit and DC power supply for secondary control loop power supply, the firewire L1 ' of secondary control loop and lead back
The firewire L1 connection on road, the input terminal of the fluid level controller is connect with liquid-level switch, output end and major loop connect, the temperature
The input terminal of control device is connect with thermocouple, output end is connect by automatic/hand running control circuit with major loop.
Further, the output end of the fluid level controller passes through relay coil KA3, relay normally closed auxiliary contact
The on-off of KA3 ' and contactor KM1 in contactor KM1 ' control major loop；The output end of the temperature controller passes through relay coil
It is contacted in KA1, relay normally open auxiliary contact KA1 ', relay normally closed auxiliary contact KA3 ' and contactor KM1 ' control major loop
The on-off of device KM1.
It further, further include the disconnecting switch being connect with major loop, for being isolated when the system overhaul with external power grid.
Further, the major loop further includes the three-pole breaker QF1 connecting with three firewires, for the system
Short circuit and overload protection.
Further, the secondary control loop further includes the pole circuit breaker Q F2 being set on firewire L1 ', for pair
The protection of secondary control loop and DC power supply.
Further, the secondary control loop further includes heating lamp, low liquid level indicator light and low liquid level sound report
Alert device, when heating to water, heating lamp can be lighted, and when liquid level is lower than setting value, low liquid level indicator light can be lighted, simultaneously
Low liquid level voice guard can also sound.
Further, it is separately connected ammeter PA1, PA2, PA3 on three firewires L1, L2, L3 of the major loop, be used for
Measure the current value on every firewire.
Further, the major loop is connected to 380V AC power source, and the DC power supply is 24V.
It further, further include cabinet, the major loop and secondary control loop are all set in cabinet, the cabinet face
On plate be arranged heating lamp, low liquid level audible-visual alarm lamp, start button, stop button and manually/stopping/automatically switch by
Button.
The beneficial effects of the utility model are:
1, the system is able to achieve the intelligent control of water temperature and water level, and water temperature is adjustable when heating, prevents anhydrous dry combustion method, and
It can automatically control or manually control, control mode can be selected according to the actual situation.
2, the system can use vulnerabilities scan forceful electric power, can also operate even if the people for being ignorant of electricity, safety is very high.
3, the system can be used in the power grid of three line four-wire systems, can also be used in single-phase power grid, power is changeable, both may be used
It can also be more flexible and easy to operate with household with commercialization.
Detailed description of the invention
Fig. 1 is the circuit diagram of major loop described in the utility model embodiment.
Fig. 2 is the circuit diagram of secondary control loop described in the utility model embodiment.
Fig. 3 is the connecting terminal schematic diagram of liquid-level switch and thermocouple described in the utility model embodiment.
Fig. 4 is the power supply terminal schematic diagram of major loop described in the utility model embodiment.
Fig. 5 is the panel construction schematic diagram of cabinet described in the utility model embodiment.
Specific embodiment
The utility model is better understood for the ease of those skilled in the art, in the following with reference to the drawings and specific embodiments to this reality
It is described in further details with novel, following be merely exemplary does not limit the protection scope of the utility model.
As shown in Figure 1,2 and 3, a kind of adjustable control system of water level protection water temperature described in the present embodiment, including lead back
Road, secondary control loop and the liquid-level switch and thermocouple being set in water container.
The major loop includes three firewires L1, L2, L3 and contacts with the heater of three firewires connection and major loop
Device KM1, the heater go deep into water container for heating to water；The major loop further includes zero curve N, ground line PE.
The secondary control loop is connect with major loop, and the secondary control loop includes firewire L1 ', a Liquid level
Device, temperature controller, automatic/hand running control circuit and the DC power supply for secondary control loop power supply.Secondary control loop
Firewire L1 ' connect with the firewire L1 of major loop；The input terminal of the fluid level controller connect with liquid-level switch, output end and master
Circuit connection, specifically, in the present embodiment, the liquid-level switch can control the liquid level within the scope of three, wherein red,
Blue, black to respectively represent basic, normal, high three liquid levels, the liquid level measured is transferred to the input of fluid level controller by liquid-level switch
End, 1,2,3 connecting terminals of the liquid-level switch respectively with fluid level controller 1., 2., 3. three pins are connect, Liquid level
The output end of device in relay coil KA3, relay normally closed auxiliary contact KA3 ' and contactor KM1 ' control major loop by connecing
The on-off of tentaculum KM1；The input terminal of the temperature controller is connect with thermocouple, output end passes through automatic/hand running control circuit
It is connect with major loop, specifically, in the present embodiment, the thermocouple is for measuring water temperature and temperature signal being converted into electric signal
Be transferred to temperature controller, i.e., the 4 of thermocouple and 5 connecting terminals respectively with temperature controller 4. and 5. pin is connect, the output of temperature controller
End passes through relay coil KA1, relay normally open auxiliary contact KA1 ', relay normally closed auxiliary contact KA3 ' and contactor KM1 '
Control the on-off of contactor KM1 in major loop.
Further, the adjustable control system of water level protection water temperature further includes the disconnecting switch connecting with major loop,
For being isolated with external power grid when the system overhaul.The major loop further includes the three-pole breaker QF1 connecting with three firewires,
For to the system short circuit and overload protection.The secondary control loop further include be set on firewire L1 ' it is one extremely breaking
Device QF2, for the protection to secondary control loop and DC power supply.
Further, the secondary control loop further includes heating lamp HL1, low liquid level indicator light HL2 and low liquid level
Voice guard HA1 plays the role of prompt or warning to operator.
Further, it is separately connected ammeter PA1, PA2, PA3 on three firewires L1, L2, L3 of the major loop, respectively
For measuring the electric current on every firewire.
In the present embodiment, the major loop is connected to 380V AC power source, as shown in figure 4, when commercial or required power compared with
When big, 380V AC power source can be directly used, when household or smaller required power, a wherein firewire can be only connected, use
220V AC power source.In addition, the DC power supply is 24V in secondary control loop.
Preferably, the adjustable control system of water level protection water temperature further includes cabinet, the major loop and two secondary controls
Circuit processed is all set in cabinet, on the cabinet panel be arranged heating lamp, low liquid level audible-visual alarm lamp, start button,
Stop button and manually/stop/auto-switching push button, as shown in Figure 5.
The working principle of the adjustable control system of water level protection water temperature described in the present embodiment:
When liquid level be lower than setting value when, fluid level controller output end control relay coil KA3 obtain it is electric so that relay
Normally closed auxiliary contact KA3 ' disconnection, so that contactor KM1 is disconnected in contactor KM1 ' control major loop, so that heater is disconnected
Electricity is no longer heat up, and heating lamp HL1 is knocked out, meanwhile, relay normally open auxiliary contact KA3 " closure, so that low liquid level indicator light
HL2 is lighted, low liquid level voice guard HA1 is connected, and issues low liquid level acousto-optic hint.When water temperature lower than setting value and liquid level it is not low
When setting value, the output end of temperature controller control relay coil KA1 obtain it is electric so that relay normally open auxiliary contact KA1 ' is closed
It closes, so that contactor KM1 is connected in contactor KM1 ' control major loop, so that heater heats, at this moment heating lamp
L1 is lighted；When water temperature is higher than setting value, the output end of temperature controller controls relay coil KA1 power loss, then relay normally open
Auxiliary contact KA1 ' disconnection, so that contactor KM1 is disconnected in contactor KM1 ' control major loop, so that heater power-off no longer adds
Heat, heating lamp HL1 are knocked out.
In addition, the system also sets up manual mode of operation, automatic running pattern is all used under normal circumstances, when the system is long
Between in unused situation or when case of emergency (for example temperature controller does not work), just use manual mode.
Above only describes the basic principle of the utility model and preferred embodiment, those skilled in the art can be according to above-mentioned
Many changes and improvements are made in description, these changes and improvements should belong to the protection scope of the utility model.
Claims (9)
1. a kind of adjustable control system of water level protection water temperature, which is characterized in that including major loop, secondary control loop and set
The liquid-level switch and thermocouple being placed in water container；
The major loop includes three firewires L1, L2, L3 and the heater and major loop contactor that connect with three firewires
KM1, the heater go deep into water container；
The secondary control loop is connect with major loop, including firewire L1 ', fluid level controller, temperature controller, an automatic/hand
Running control circuit and the DC power supply powered for secondary control loop, firewire L1 ' and the major loop of secondary control loop
Firewire L1 connection, the input terminal of the fluid level controller is connect with liquid-level switch, output end and major loop connect, the temperature controller
Input terminal connect with thermocouple, output end is connect by automatic/hand running control circuit with major loop.
2. the adjustable control system of water level protection water temperature according to claim 1, which is characterized in that the fluid level controller
Output end by being contacted in relay coil KA3, relay normally closed auxiliary contact KA3 ' and contactor KM1 ' control major loop
The on-off of device KM1；The output end of the temperature controller passes through relay coil KA1, relay normally open auxiliary contact KA1 ', relay
The on-off of normally closed auxiliary contact KA3 ' and contactor KM1 in contactor KM1 ' control major loop.
3. the adjustable control system of water level protection water temperature according to claim 1 or 2, which is characterized in that further include and master
Loop-coupled disconnecting switch.
4. the adjustable control system of water level protection water temperature according to claim 3, which is characterized in that the major loop also wraps
Include the three-pole breaker QF1 connecting with three firewires.
5. the adjustable control system of water level protection water temperature according to claim 4, which is characterized in that the secondary control is returned
Road further includes the pole circuit breaker Q F2 being set on firewire L1 '.
6. the adjustable control system of water level protection water temperature according to claim 4 or 5, which is characterized in that two secondary control
Circuit processed further includes heating lamp, low liquid level indicator light and low liquid level voice guard.
7. the adjustable control system of water level protection water temperature according to claim 6, which is characterized in that the three of the major loop
Ammeter PA1, PA2, PA3 are separately connected on firewire L1, L2, L3.
8. the adjustable control system of water level protection water temperature described according to claim 1 or 2 or 4 or 5 or 7, which is characterized in that institute
It states major loop and is connected to 380V AC power source, the DC power supply is 24V.
9. the adjustable control system of water level protection water temperature according to claim 8, which is characterized in that it further include cabinet, institute
It states major loop and secondary control loop is all set in cabinet, heating lamp, low liquid level acousto-optic are set on the cabinet panel
Alarm lamp, start button, stop button and manually/stop/auto-switching push button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822040862.3U CN209371534U (en) | 2018-12-06 | 2018-12-06 | A kind of adjustable control system of water level protection water temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822040862.3U CN209371534U (en) | 2018-12-06 | 2018-12-06 | A kind of adjustable control system of water level protection water temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209371534U true CN209371534U (en) | 2019-09-10 |
Family
ID=67831572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822040862.3U Active CN209371534U (en) | 2018-12-06 | 2018-12-06 | A kind of adjustable control system of water level protection water temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209371534U (en) |
-
2018
- 2018-12-06 CN CN201822040862.3U patent/CN209371534U/en active Active
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