CN211009042U - Waste water recovery pump automatic control device and waste water recovery system - Google Patents
Waste water recovery pump automatic control device and waste water recovery system Download PDFInfo
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- CN211009042U CN211009042U CN201921545860.8U CN201921545860U CN211009042U CN 211009042 U CN211009042 U CN 211009042U CN 201921545860 U CN201921545860 U CN 201921545860U CN 211009042 U CN211009042 U CN 211009042U
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Abstract
The utility model discloses an automatic control device of a wastewater recovery pump and a wastewater recovery system, the device comprises a reed pipe double-floating ball liquid level switch and a control circuit, the other end of the lower floating ball switch is connected with the base of a first triode, the collector of the first triode is connected with a power supply, and the emitter of the first triode is respectively connected with one end of a coil of a first relay and the negative pole of the first diode; one end of the floating ball switch is connected with a power supply, the other end of the floating ball switch is connected with a base electrode of a second triode, a collector electrode of the second triode is connected with the power supply, and an emitting electrode of the second triode is respectively connected with one end of a coil of a second relay and a negative electrode of a second diode; the input end of the contact of the first relay is the input end of the control circuit, the contact of the first relay is sequentially connected with the contact of the second relay, the other end of the contact of the second relay is connected with the coil of the alternating current contactor, and the other end of the coil of the alternating current contactor is used as the output end of the control circuit.
Description
Technical Field
The utility model belongs to the technical field of waste water level control, specifically speaking relates to a waste water recovery pump automatic control device and waste water recovery system.
Background
During chemical production and wastewater treatment, small amounts of wastewater may overflow, leak, seep to a low-lying place or a special wastewater collection tank, and the wastewater must be collected and treated again. The waste water is often extracted and recovered by a movable submersible pump without any existing automatic control device, and the pump is required to be inspected manually and started/stopped in time. If the pump is not stopped in time after the water is drained, the seal of the pump is damaged by dry grinding and the motor is burnt out due to overheating; after the pump is stopped, water can be gradually saturated, if the pump is not started in time, wastewater can overflow, and an environment-friendly event can be caused.
If the existing liquid level float switch on the market is adopted to control the water pump, when the water level is close to the highest control water level or waves exist on the water level, the switch is frequently switched on/off, the pump is frequently started/stopped, and the service life of the water pump is seriously shortened. If a delay controller (or a circuit) is added according to a floating ball signal to control the start and stop of the pump, the delay time is difficult to adjust and adapt when the conditions of the depth of a sump and the leakage speed are different. If the reed switch double floating balls are used for control, the reed switch allows the current to flow less than 50mA, the voltage is not higher than 30V, and the intermediate relay is not driven, and the control power is not limited to a submersible pump three-phase motor with 0.8-4 kW.
The utility model discloses a utility model patent application number 2012202664802 discloses a single pump water level automatic control, including alternating current power supply, power supply circuit, transformer, ac contactor, first auxiliary relay, second auxiliary relay, start button, stop button, manual/automatic button, high water level tongue tube switch, low water level tongue tube switch and motor. The utility model provides a water level control device which can automatically control the water level and automatically fill water when the water level is lower than a certain limit; the utility model has the advantages of circuit structure is simple, the practicality is strong, stable performance and installation and debugging are convenient. The product adopts the reed switch to control, realizes the automatic control water level, but the product mainly controls the relay coil after flowing through the reed switch after transforming the power supply through the transformer, as mentioned above, the allowable flowing current of the dry-yellow tube is less than 50mA, the voltage is not higher than 30V, and certain difficulty exists in driving the relay in practical application.
SUMMERY OF THE UTILITY MODEL
To foretell not enough among the prior art, the utility model provides a waste water recovery pump automatic control device and waste water recovery system, the device adopt the tongue tube liquid level switch signal of electric current performance, realize the control to the great water pump motor of electric current, and high liquid level starts, low liquid level stops, there is great buffer time in the centre, can not cause the motor to frequently move, after the system layout, do not need personnel's on duty completely, patrol and examine, can independently work reliably automatically, eliminated the excessive hidden danger of waste water.
In order to achieve the above object, the utility model discloses a solution is: an automatic control device of a wastewater recovery pump comprises a reed pipe double-floating ball liquid level switch and a control circuit, wherein the reed pipe double-floating ball liquid level switch is fixed in a wastewater collection pool, an upper floating ball switch of the reed pipe double-floating ball liquid level switch is positioned on a first plane which is the same as the water level of a starting drainage pump, and a lower floating ball switch of the reed pipe double-floating ball liquid level switch is positioned on a second plane which is the same as the water level of a stopping drainage pump; the control circuit comprises a power supply, a first relay, a second relay and an alternating current contactor, wherein one end of the lower floating ball switch is connected with the power supply, the other end of the lower floating ball switch is connected with a base electrode of a first triode, a collector electrode of the first triode is connected with the power supply, an emitter electrode of the first triode is respectively connected with one end of a coil of the first relay and a negative electrode of the first diode, and the other end of the coil of the first relay and a positive electrode of the first diode are grounded; one end of the floating ball switch is connected with a power supply, the other end of the floating ball switch is connected with a base electrode of a second triode, a collector electrode of the second triode is connected with the power supply, an emitting electrode of the second triode is respectively connected with one end of a coil of a second relay and a negative electrode of a second diode, and the other end of the coil of the second relay and a positive electrode of the second diode are grounded; the input of the contact of first relay is as control circuit's input, the other end of the contact of first relay and the contact connection of second relay, the other end and the ac contactor's of the contact of second relay coil connection, the other end of ac contactor coil is as control circuit's output, ac contactor include four contacts, a contact connects in parallel at the both ends of the contact of second relay, three contact respectively connects in a looks input of pump.
The control circuit further comprises a current-limiting resistor, one end of the lower floating ball switch is connected with the power supply through a first current-limiting resistor, and one end of the upper floating ball switch is connected with the power supply through a second current-limiting resistor.
The control circuit still include protection circuit, protection circuit including fuse and the thermorelay contact of establishing ties in proper order, the input of fuse as control circuit's input, the output of thermorelay contact and the contact connection of first relay, thermorelay's coil connection is in the input of pump.
The first current limiting resistor and the second current limiting resistor have the same resistance value and are both 1K omega.
The first triode and the second triode have the same model and are both 2SC 1815.
The first diode and the second diode have the same type and are both IN 4001.
The power supply is a 5V/500mA power supply.
The wastewater recovery system based on the automatic control device of the wastewater recovery pump comprises a submersible pump, a control device and a drainage pipeline, wherein the submersible pump is connected with a three-phase power supply, the three-phase power supply supplies power for the submersible pump, the input end of a control circuit of the control device is connected with the A-phase input end of the submersible pump, the output end of the control circuit of the control device is connected with the B-phase input end of the submersible pump, and three contacts of an alternating current contactor are respectively connected to one-phase input end of the submersible pump; the drainage pipeline is connected with the submersible pump and used for discharging wastewater.
The utility model has the advantages that:
(1) the device adopts the tongue tube liquid level switch signal of electric current performance, realizes the control to the great water pump motor of electric current, and high liquid level starts, low liquid level stops, and there is great buffer time in the centre, can not cause the motor to frequently move, and after the system layout, do not need personnel's on duty completely, patrol and examine, can independently work automatically reliably, eliminated the excessive hidden danger of waste water.
(2) The on/off of the triode is controlled by the on/off of the reed switch, the on/off of the triode is controlled by the on/off of the triode, the on/off of the relay is controlled by the on/off of the triode, the on/off of the alternating current contactor is controlled by the on/off of the two relays, therefore, the starting and stopping of the large-current motor are controlled by the small liquid level signal received by the reed switch, and the alternating current contactor is designed with self-protection interlocking to prevent the motor from being started immediately when the water level is slightly lower than the high liquid level floating ball motor and the water level is slightly higher than the high liquid level floating ball motor (or the motor is started and stopped frequently.
Drawings
Fig. 1 is a main circuit diagram of the submersible pump motor of the present invention;
FIG. 2 is a control circuit diagram of the submersible pump motor of the present invention;
in the figure, R1-a first current-limiting resistor, R2-a second current-limiting resistor, M1-a lower floating ball switch, M2-a upper floating ball switch, J1-a first relay, J2-a second relay, Q1-a first triode, Q2-a second triode, a KM-AC contactor, an FU-fuse, an FR-thermal relay, D1-a first diode, D2-a second diode and an M-submersible pump.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 and 2, an automatic control device of a wastewater recovery pump comprises a reed pipe double-float liquid level switch and a control circuit, wherein the reed pipe double-float liquid level switch is fixed in a wastewater collection pool, a floating ball switch M2 of the reed pipe double-float liquid level switch is positioned on a first plane which is the same as the water level of a starting drainage pump, and a lower floating ball switch M1 of the reed pipe double-float liquid level switch is positioned on a second plane which is the same as the water level of a stopping drainage pump; the control circuit comprises a power supply, a first relay J1, a second relay J2 and an alternating current contactor KM, wherein one end of a lower floating ball switch M1 is connected with the power supply, the other end of the lower floating ball switch M1 is connected with a base electrode of a first triode Q1, a collector electrode of a first triode Q1 is connected with the power supply, an emitter electrode of a first triode Q1 is respectively connected with one end of a coil of the first relay J1 and a negative electrode of a first diode D1, and the other end of the coil of a first relay J1 and a positive electrode of the first diode D1 are grounded; one end of the floating ball switch M2 is connected with a power supply, the other end of the floating ball switch M2 is connected with the base electrode of a second triode Q2, the collector electrode of the second triode Q2 is connected with the power supply, the emitter electrode of the second triode Q2 is respectively connected with one end of a coil of a second relay J2 and the negative electrode of a second diode D2, and the other end of the coil of the second relay J2 and the positive electrode of the second diode D2 are grounded; the input end of the contact of the first relay J1 is used as the input end of the control circuit, the other end of the contact of the first relay J1 is connected with the contact of the second relay J2, the other end of the contact of the second relay J2 is connected with the coil of the alternating current contactor KM, the other end of the coil of the alternating current contactor KM is used as the output end of the control circuit, the alternating current contactor comprises four contacts, one contact is connected in parallel with the two ends of the contact of the second relay J2, and the three contacts are connected to one phase input end of the pump respectively. The on/off of the triode is controlled by the on/off of the reed switch, the on/off of the triode is controlled by the on/off of the triode, the on/off of the relay is controlled by the on/off of the triode, the on/off of the alternating current contactor KM is controlled by the on/off of the two relays, therefore, the on/off of the large-current motor is controlled by a small liquid level signal received by the reed switch, and the alternating current contactor KM is designed with self-protection interlocking to prevent the motor from being started immediately when the water level is slightly lower than the high-liquid-level floating ball motor and the water level is slightly higher than the high-liquid-level floating ball motor (or the. Through the design of a control circuit, the current flowing through the reed switch is about 5mA, and the working voltage is 5-12V. Two relays with contacts of 2A are driven by a control loop, and then the two relays with contacts of 2A control an alternating current contactor KM on a main loop of the motor.
The control circuit further comprises a current-limiting resistor, one end of the lower floating ball switch M1 is connected with a power supply through a first current-limiting resistor R1, and one end of the upper floating ball switch M2 is connected with the power supply through a second current-limiting resistor R2. The first current limiting resistor R1 and the second current limiting resistor R2 have the same resistance value and are both 1K omega.
The control circuit still include protection circuit, protection circuit including fuse FU and thermorelay FR contact that establish ties in proper order, fuse FU's input as control circuit's input, thermorelay FR contact's output and first relay J1's contact are connected, thermorelay FR's coil connection is in the input of pump. Fuse FU can fuse when the electric current is too big, other electronic device of protection control circuit, and thermorelay FR can generate heat the disconnect-type when the electric current is too big, and the motor of protection immersible pump M is not damaged.
The first triode Q1 and the second triode Q2 are the same in model and are both 2SC 1815. The first diode D1 and the second diode D2 are the same IN model and are both IN 4001. The power supply is a 5V/500mA power supply.
The wastewater recovery system based on the automatic control device of the wastewater recovery pump comprises a submersible pump M, a control device and a drainage pipeline, wherein the submersible pump M is connected with a three-phase power supply, the three-phase power supply supplies power to the submersible pump M, the input end of a control circuit of the control device is connected with the phase A input end of the submersible pump M, the output end of the control circuit of the control device is connected with the phase B input end of the submersible pump M, and three contacts of an alternating current contactor are respectively connected to one phase input end of the submersible pump M; the drainage pipeline is connected with the submersible pump M and used for discharging wastewater.
When arranging waste water recovery system, fix tongue tube double float ball liquid level switch in the waste water collecting pit, make tongue tube double float ball liquid level switch's last float ball switch M2 be located the first plane the same with the water level that starts the drain pump, tongue tube double float ball liquid level switch's lower float ball switch M1 is located the second plane the same with the water level that stops the drain pump, then be connected control circuit and the power input end of immersible pump M's motor, with control circuit fixed mounting in a rain-proof plastic casing, make into waterproof control box, the motor can adopt the connector with the tongue tube signal line and be connected with control box. And a drainage pipeline is connected to the submersible pump M, arranged according to drainage requirements and connected with a three-phase power supply. The submersible pump M can automatically discharge the wastewater according to the liquid level of the wastewater collection pool.
When the water level is gradually higher than the lower floating ball, the lower floating ball floats, the lower floating ball switch M1 is switched on, and the normally open contact of the first relay J1 is switched on; when the water surface continues to rise to a position higher than the floating ball, the floating ball floats, the floating ball switch M2 is switched on, the second relay J2 is switched on, the phase A of the power supply passes through the first relay J1 → the second relay J2 → the coil of the alternating current contactor KM → the phase B of the power supply, the alternating current contactor KM is electrified and attracted, the motor starts to pump water, and the liquid level begins to gradually descend. After the alternating current contactor KM is attracted, the normally open auxiliary contact connected with the contact of the second relay J2 in parallel is attracted at the same time, and the second relay J2 is locked. When the water surface gradually descends to a position below the upper floating ball, the upper floating ball switch M2 is switched off, the second relay J2 is switched off, and the normally-open auxiliary contact is still in a switched-on state at the moment, so that the phase A of the power supply passes through the first relay J1 → the normally-open auxiliary contact of the alternating current contactor KM → the coil of the alternating current contactor KM → the phase B of the power supply, and the alternating current contactor KM is continuously kept in attraction; when the water surface continues to fall below the lower floating ball, the lower floating ball switch M1 is switched off, the first relay J1 is switched off, the alternating current contactor KM is powered off and switched off, the water pump stops working, and a working cycle is completed. In practical application, the 5V/500mA power supply can be replaced by a mobile phone charger.
The device can change the installation and use place at any time according to actual needs, only needs to install the liquid level ball lever, puts the submersible pump M into water, connects a signal line, a power line and a drainage pipeline, automatically works after power supply, does not need personnel to frequently start and stop the pump, and eliminates equipment damage and hidden danger of environmental protection events caused by human factors. The whole device is simple to install and operate, the investment is about 50-80 yuan, the displacement installation can be completed within 20 minutes, the device can be flexibly installed in an indoor environment and an outdoor environment which need to collect waste water, such as a pit, a hollow pool and a pool, which need to temporarily collect waste water, and the device can be fixed in a certain pool to be used for automatic liquid level control. Is a simple, reliable, economical and practical automatic wastewater collection and liquid level control device.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (8)
1. The utility model provides a waste water recovery pump automatic control device which characterized in that: the system comprises a reed pipe double-floating ball liquid level switch and a control circuit, wherein the reed pipe double-floating ball liquid level switch is fixed in a wastewater collection pool, a floating ball switch of the reed pipe double-floating ball liquid level switch is positioned on a first plane which is the same as the water level of a starting drainage pump, and a lower floating ball switch of the reed pipe double-floating ball liquid level switch is positioned on a second plane which is the same as the water level of a stopping drainage pump; the control circuit comprises a power supply, a first relay, a second relay and an alternating current contactor, wherein one end of the lower floating ball switch is connected with the power supply, the other end of the lower floating ball switch is connected with a base electrode of a first triode, a collector electrode of the first triode is connected with the power supply, an emitter electrode of the first triode is respectively connected with one end of a coil of the first relay and a negative electrode of the first diode, and the other end of the coil of the first relay and a positive electrode of the first diode are grounded; one end of the floating ball switch is connected with a power supply, the other end of the floating ball switch is connected with a base electrode of a second triode, a collector electrode of the second triode is connected with the power supply, an emitting electrode of the second triode is respectively connected with one end of a coil of a second relay and a negative electrode of a second diode, and the other end of the coil of the second relay and a positive electrode of the second diode are grounded; the input of the contact of first relay is as control circuit's input, the other end of the contact of first relay and the contact connection of second relay, the other end and the ac contactor's of the contact of second relay coil connection, the other end of ac contactor coil is as control circuit's output, ac contactor include four contacts, a contact connects in parallel at the both ends of the contact of second relay, three contact respectively connects in a looks input of pump.
2. The automatic control device of a wastewater recovery pump according to claim 1, characterized in that: the control circuit further comprises a current-limiting resistor, one end of the lower floating ball switch is connected with the power supply through a first current-limiting resistor, and one end of the upper floating ball switch is connected with the power supply through a second current-limiting resistor.
3. The automatic control device of a wastewater recovery pump according to claim 2, characterized in that: the control circuit still include protection circuit, protection circuit including fuse and the thermorelay contact of establishing ties in proper order, the input of fuse as control circuit's input, the output of thermorelay contact and the contact connection of first relay, thermorelay's coil connection is in the input of pump.
4. The automatic control device of a wastewater recovery pump according to claim 2, characterized in that: the first current limiting resistor and the second current limiting resistor have the same resistance value and are both 1K omega.
5. The automatic control device of a wastewater recovery pump according to claim 1, characterized in that: the first triode and the second triode have the same model and are both 2SC 1815.
6. The automatic control device of a wastewater recovery pump according to claim 1, characterized in that: the first diode and the second diode have the same type and are both IN 4001.
7. The automatic control device of a wastewater recovery pump according to claim 1, characterized in that: the power supply is a 5V/500mA power supply.
8. The wastewater recovery system according to any one of claims 1 to 7, wherein: the submersible pump is connected with a three-phase power supply, the three-phase power supply supplies power to the submersible pump, the input end of a control circuit of the control device is connected with the phase A input end of the submersible pump, the output end of the control circuit of the control device is connected with the phase B input end of the submersible pump, and three contacts of an alternating current contactor are connected to one phase input end of the submersible pump respectively; the drainage pipeline is connected with the submersible pump and used for discharging wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921545860.8U CN211009042U (en) | 2019-09-17 | 2019-09-17 | Waste water recovery pump automatic control device and waste water recovery system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921545860.8U CN211009042U (en) | 2019-09-17 | 2019-09-17 | Waste water recovery pump automatic control device and waste water recovery system |
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| CN211009042U true CN211009042U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431766A (en) * | 2021-07-20 | 2021-09-24 | 苏州市东雄精密模具塑业有限公司 | Automatic switch control device for cooling water pump of injection molding machine |
-
2019
- 2019-09-17 CN CN201921545860.8U patent/CN211009042U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431766A (en) * | 2021-07-20 | 2021-09-24 | 苏州市东雄精密模具塑业有限公司 | Automatic switch control device for cooling water pump of injection molding machine |
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