CN210769265U - Closed effluent water sump water level control device - Google Patents
Closed effluent water sump water level control device Download PDFInfo
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- CN210769265U CN210769265U CN201921067203.7U CN201921067203U CN210769265U CN 210769265 U CN210769265 U CN 210769265U CN 201921067203 U CN201921067203 U CN 201921067203U CN 210769265 U CN210769265 U CN 210769265U
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Abstract
The utility model discloses a closed sewage pond water level control device, including the floater, fixed bolster and a plurality of suction pump, the floater top is equipped with the floating lever, the one end that the floating lever kept away from the floater is equipped with the response lug, the fixed bolster includes horizontal stand and vertical support, be equipped with the through-hole that matches with the floating lever on the horizontal stand, vertical support top is connected with the scale guide arm through the dead lever, be equipped with the liquid level proximity switch of a plurality of differences in height on the vertical support, the through-hole cover that the floating lever was equipped with the one end of response lug passed on the horizontal stand is established in the scale guide arm outside, the response lug is located one side that the floating lever is close to liquid level proximity switch, liquid level proximity switch passes through. The utility model discloses can directly master actual pond liquid level according to the scale guide arm under closed effluent water sump environment to can realize the automatic control water level through the operational aspect of the change automatic control pump of liquid level, reduce the potential safety hazard.
Description
Technical Field
The utility model belongs to the technical field of mechanical automation and specifically relates to a closed effluent water sump water level control device is related to.
Background
The sewage pool is generally provided with a plurality of water pumps which operate to control the liquid level in the pool, and workers regularly patrol or control the start and stop of the water pumps by a liquid level controller on site. For example, the publication No. CN205296380U of "a sewage drainage pump water level control system" disclosed in the chinese patent document includes at least two control switches turned on/off by liquid level control, the control switches are disposed in the sewage tank corresponding to different water level heights, each of the control switches is respectively connected in series with a relay, and one contact of each of the relays is connected in series and then connected in parallel with one control switch. When the water level in the sewage pool rises, the control switches with different water level heights control the corresponding drainage pump to drain water. The control system controls the working condition of the drainage pump through the control switch and the height of the sewage liquid level in the sewage pool, so that automatic drainage is realized, and the drainage pumps can work independently or simultaneously.
However, in the closed sewage tank, the water level and the water storage condition in the tank are not easy to observe from the outside of the tank, so that the control by a manual patrol or a common liquid level controller is difficult. When the liquid level controller in the prior art is used for controlling, even if a control device in the pool breaks down, the control device is difficult to find out in time, so that the overflow accident of the pool occurs under the condition that the pump fails to operate normally after the fault, great harm is caused to the surrounding environment, and the potential safety hazard is great.
Disclosure of Invention
The utility model relates to an overcome among the prior art water level and the retaining circumstances in the closed effluent water sump pond and be not convenient for observe from the pond outward, it also is difficult to in time discover to lead to even the water level control device in the pond breaks down, consequently, the overflow accident easily takes place for the pond under the trouble rear pump fails normal operating's the circumstances, cause very big harm to peripheral environment, the problem that the potential safety hazard is big, a closed effluent water sump water level control device is provided, in the effluent water sump under the closed environment, use one with low costs, reliable and stable mechanical type automated control water level device, make things convenient for the water level circumstances in pond outward appearance inspection pond of staff, in time discover and remove the trouble of device, reduce the potential safety hazard.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a water level control device of a closed sewage pool comprises a floating ball positioned in the sewage pool, the floating ball is arranged above the floating ball, one end, away from the floating ball, of the floating rod is provided with a sensing lug, the fixed support comprises a horizontal support parallel to the bottom of the pool and a vertical support vertically arranged on the horizontal support, the horizontal support is provided with a through hole matched with the floating rod, the top end of the vertical support is connected with a scale guide rod parallel to the vertical support through a fixed rod, the vertical support is provided with a plurality of liquid level proximity switches with different heights, one end, provided with the sensing lug, of the floating rod penetrates through a through hole sleeve on the horizontal support and is arranged outside the scale guide rod, the sensing lug is located on one side, close to the liquid level proximity switches, of the floating rod, and the liquid level proximity switches are respectively connected with corresponding water suction pumps through circuits.
The vertical support is provided with a scale guide rod and liquid level proximity switches with different heights, the top of the floating rod is provided with an induction bump, the position of the floating ball changes along with the up-and-down change of the water level in the sewage tank, so that the position of the floating rod sleeved outside the scale guide rod changes, and a worker can read the actual liquid level in the sewage tank in real time outside the sewage tank according to the scale on the scale guide rod corresponding to the top of the floating rod. And when the sensing convex block on the floating rod is close to the sensing surfaces on different liquid level proximity switches, the corresponding liquid level proximity switches can generate corresponding actions, so that the corresponding water suction pumps are controlled to start or stop working. The quantity and the height of the liquid level proximity switches can be adjusted according to actual requirements so as to adapt to different water level control requirements.
Therefore the utility model discloses can directly master actual pond liquid level according to the scale guide arm under closed effluent water sump environment to can both realize mechanical type automated control water level through the operational aspect of the change automatic control suction pump of liquid level, can guarantee again that the staff can in time discover according to liquid level in the pond when the suction pump breaks down, reduce the potential safety hazard.
Preferably, a power control cabinet is further arranged outside the sewage pool, a power indicator lamp, a liquid level indicator lamp, a water pump operation indicator lamp, a water pump control switch and a function conversion knob are arranged on a cabinet body of the power control cabinet, the power indicator lamp is connected with the power through a circuit, the liquid level indicator lamp is connected with the corresponding liquid level proximity switch through a circuit, and the water pump operation indicator lamp, the water pump control switch and the function conversion knob are connected with the water pump through a circuit.
A power control cabinet is arranged outside the sewage pool, and the liquid level condition in the closed sewage pool can be observed more conveniently and visually through a liquid level indicator lamp which is arranged on the power control cabinet and connected with a liquid level proximity switch; the operation condition of the water pump can be conveniently observed through the water pump operation indicating lamp connected with the water pump, and the water pump can be timely found and eliminated when a fault occurs; through the function conversion knob on the power control cabinet, can switch liquid level automatic control mode and manual control mode, can carry out manual control to the suction pump through the pump control switch that draws water when switching to the manual control mode.
Therefore, the utility model can more conveniently and visually know the working condition in the closed sewage tank through the indicating lamps on the power control cabinet, and is convenient for finding and removing faults; and can realize the conversion of manual control and liquid level automatic control, and the staff can carry out manual control according to on-the-spot actual requirement or under emergency.
Preferably, the water pump control switch comprises an operation switch and a stop switch, the water pump operation indicator lamp comprises a fault indicator lamp, an operation indicator lamp and a stop indicator lamp, and the operation indicator lamp and the stop indicator lamp are respectively arranged in the operation switch and the stop switch. Set up different suction pump control pilot lamps on power control cabinet, can the operation and the trouble condition of each suction pump of visual display, be convenient for know the operation condition of suction pump in real time to can in time discover and judge the suction pump that breaks down, reduce the potential safety hazard.
Preferably, a spare water pump connected with the bottom of the sewage pool through a pipeline is further arranged outside the sewage pool, and an alarm indicator lamp connected with the spare water pump through a circuit is arranged on the cabinet body of the power control cabinet. A standby water pump is arranged, when the water pump fails, the standby water pump can be started to continue pumping water, so that the overflow accident of the water pool is prevented, and the surrounding environment is prevented from being damaged; the alarm indicator lamp is connected with the standby water suction pump, when the standby water suction pump starts to operate, the alarm indicator lamp can give an alarm, so that a worker can find and discharge the fault of the water suction pump in time, the fault rate of the control equipment is reduced, and the stability of the control equipment is improved.
Preferably, the vertical support is further provided with an alarm proximity switch located above the liquid level proximity switch, a sound-light alarm is arranged near the sewage pool, and the alarm proximity switch is connected with the sound-light alarm through a circuit. The alarm proximity switch is arranged above the liquid level proximity switch and is connected with the audible and visual alarm, when the liquid level in the sewage tank rises to the position near the alarm proximity switch, the induction bump on the floating rod is close to the induction surface on the alarm proximity switch, the alarm proximity switch can generate corresponding action, and the audible and visual alarm is controlled to give an alarm. Let the staff in time discover trouble in the pond through audible-visual annunciator to in time take measures, avoid the liquid level in the pond too high to lead to the pond to take place the overflow accident.
Preferably, the control circuit for the operation of the water suction pump comprises a circuit breaker, a contactor, a thermal relay and the water suction pump which are sequentially connected, and the circuit breaker is controlled by a liquid level proximity switch. When the liquid level in the sewage tank rises and the liquid level proximity switch induces the induction bump on the floating rod, the circuit breaker is closed, the coil of the contactor is electrified to enable the normally open contact to be attracted, the normally closed contact of the thermal relay is in a closed state, and the corresponding water suction pump starts to operate; when the liquid level descends and the liquid level approach switch cannot sense the sensing lug on the floating rod, the circuit breaker is disconnected, the coil of the contactor loses power to open the normally open contact, and the water suction pump stops working. The automatic operation of the water pump is realized.
Preferably, the control circuit of the liquid level indicator lamp comprises a liquid level proximity switch, an intermediate relay and a liquid level indicator lamp which are sequentially connected, and the control circuit of the audible and visual alarm comprises an alarm proximity switch, an intermediate relay and an audible and visual alarm which are sequentially connected. When the liquid level in the sewage tank rises to the position near the liquid level proximity switch, and the liquid level proximity switch induces the induction bump on the floating rod, the liquid level proximity switch is closed, the coil of the intermediate relay is electrified and attracted, and the corresponding liquid level indicator lamp is on; when the liquid level rises to the position near the alarm proximity switch, and the alarm proximity switch senses the induction bump on the floating rod, the alarm proximity switch is closed, the coil of the intermediate relay is electrified and attracted, and the audible and visual alarm gives an alarm. The liquid level indication and the automatic alarm of the overhigh liquid level in the sewage tank are realized.
Preferably, the function conversion knob comprises two contacts, one of the two contacts is connected with the automatic liquid level control circuit, the other contact is connected with the manual control circuit, the automatic liquid level control circuit of each water pump comprises an intermediate relay, a contactor and a thermal relay, the automatic liquid level control circuit of the standby water pump comprises a time relay, a contactor and a thermal relay, the manual control circuit comprises an operating switch, a stop switch, a contactor and a thermal relay which are sequentially connected, and the time relay in the automatic standby water pump liquid level control circuit is connected with the intermediate relay, the contactor and an alarm indicator lamp in the automatic water pump liquid level control circuit.
And the function conversion knob is rotated, and the conversion between the automatic liquid level control and the manual control is realized by changing the contact of the access circuit. When the liquid level automatic control loop is communicated, the on-off of the intermediate relay and the contactor is controlled through the liquid level proximity switch, so that the operation of the water pump is controlled; when the manual control loop is communicated, the on-off of the contactor is controlled through the operation switch and the stop switch, and the operation of the water pump can also be controlled.
When a water suction pump fails, a normally closed contact of a thermal relay connected with the water suction pump is disconnected, a coil of a contactor loses power, a normally open contact is disconnected, the normally closed contact is closed, and the water suction pump stops running; meanwhile, a coil of a time relay in the standby suction pump control loop is electrified, a corresponding normally open contact is closed after time delay, a coil of a contactor in the standby suction pump control loop is electrified, the normally open contact is closed, the standby water pump starts to work, and an alarm lamp is turned on.
When the water suction pump breaks down, the standby water suction pump can automatically operate, the failure rate of the equipment is reduced, and the stability of the control equipment is improved.
Preferably, contactor and thermorelay include normally open contact and normally closed contact, the normally open contact and the running light of contactor are connected, and the normally closed contact and the stop light of contactor are connected, thermorelay's normally open contact and fault indicator are connected, thermorelay's normally closed contact and suction pump or reserve suction pump are connected. When the water suction pump breaks down, the normally closed contact of the thermal relay is disconnected, and a fault indicator lamp on the power control cabinet is turned on; when the water suction pump works normally, the normally closed contact of the thermal relay is closed, the normally open contact of the contactor is closed, and the operation indicator lamp is on; when the water suction pump stops working, the normally closed contact of the thermal relay is closed, the normally closed contact of the contactor is closed, and the stop indicator lamp is turned on. The operation and fault conditions of each water pump can be timely and accurately judged through the brightness of each water pump operation indicator lamp, and potential safety hazards are reduced.
Preferably, a time relay and an alarm indicator lamp in the automatic standby suction pump liquid level control circuit are connected with a normally closed contact of a contactor in the automatic suction pump liquid level control circuit. When the water suction pump works normally, a normally open contact of a contactor connected with the water suction pump is closed, the normally closed contact is disconnected, and an alarm indicator lamp is not on; when the water suction pump breaks down, a normally closed contact of a contactor connected with the water suction pump is closed, a time relay coil is electrified and is attracted, the standby water suction pump runs, and an alarm indicator lamp is turned on. When the water suction pump breaks down, the standby water suction pump and the alarm indicator lamp work simultaneously.
Therefore, the utility model discloses following beneficial effect has:
(1) the actual pool liquid level can be directly mastered according to the scale guide rod under the environment of the closed sewage pool, and the operation condition of the water pump can be automatically controlled through the change of the liquid level, so that the mechanical automatic water level control is realized, the working personnel can be ensured to find the liquid level in the pool in time when the water pump breaks down, and the potential safety hazard is reduced;
(2) the power control cabinet is arranged outside the sewage pool, so that the liquid level condition in the closed sewage pool and the working condition of each water pump can be more conveniently and visually known through each indicator lamp on the power control cabinet, and the fault can be conveniently found and eliminated; the conversion between manual control and automatic liquid level control can be realized, and workers can perform manual control according to actual requirements on the site or under emergency conditions;
(3) the water pump is arranged in addition to the spare water pump, when the water pump fails, the spare water pump can be started to continue pumping water, so that the overflow accident of the water pool is prevented, and the damage to the surrounding environment is prevented; and set up the alarm indicator lamp of being connected with reserve suction pump simultaneously, when reserve suction pump began the operation, can report to the police through alarm indicator lamp, make the staff in time discover and discharge the trouble of suction pump, reduce the fault rate of controlgear, improve controlgear's stability.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the power control cabinet;
FIG. 3 is a schematic diagram of a primary circuit for controlling operation of a water pump;
FIG. 4 is a schematic diagram of a secondary loop for controlling the operation of the power indicator, the liquid level indicator, and the audible and visual alarm;
FIG. 5 is a schematic diagram of the automatic control circuit and the manual control circuit for the water pump and the backup water pump levels;
fig. 6 is a schematic diagram of a secondary circuit for controlling the operation of the pump indicator light.
In the figure: 1 sewage pool, 2 floating balls, 301 horizontal bracket, 302 vertical bracket, 401 water pump A, 402 water pump B, 403 standby water pump C, 5 floating rods, 6 induction bumps, 7 scale guide rods, 8 fixed rods, 901 low liquid level proximity switch, 902 middle liquid level proximity switch, 903 high liquid level proximity switch, 10 alarm proximity switch, 11 power control cabinet, L1 power indicator, L2 middle liquid level indicator, L3 high liquid level indicator, L4 alarm indicator, L5 audible and visual alarm, HY1 pump A fault indicator, HY2 pump B fault indicator, HY3 pump C fault indicator, HG1 pump A operation indicator, HG2 pump B operation indicator, HG3 pump C operation indicator, HR1 pump A stop indicator, HR2 pump B stop indicator, HR3 pump C stop indicator, SB1 pump A stop switch, An SB2 pump A operation switch, an SB3 pump B stop switch, an SB4 pump B operation switch, an SB5 pump C stop switch, an SB6 pump C operation switch, an SA1 pump A function conversion knob, an SA2 pump B function conversion knob, an SB3 pump C function conversion knob, a QF1 pump A circuit breaker, a QF2 pump B circuit breaker, a QF3 pump C circuit breaker, a KM1 pump A contactor, a KM2 pump B contactor, a KM3 pump C contactor, an FR1 pump A thermal relay, an FR2 pump B thermal relay, an FR3 pump C thermal relay, a KA1 mid-level relay, a KA2 high-level relay, a KA3 alarm relay, and a KT1 pump C time relay.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Example (b):
as shown in figure 1, the water level control device for the closed sewage pool comprises a floating ball 2 positioned in the sewage pool 1, a fixed support arranged above the sewage pool, and a water suction pump A401, a water suction pump B402 and a standby water suction pump C403 which are connected with the bottom of the pool through pipelines. The floating ball top is equipped with the floating lever 5, the floating lever is kept away from the one end of floater and is equipped with response lug 6, the fixed bolster includes the horizontal stand 301 that is on a parallel with the bottom of the pool and the vertical stand 302 of perpendicular setting on the horizontal stand, be equipped with the through-hole that matches with the floating lever on the horizontal stand, vertical stand top is connected with the scale guide arm 7 that is on a parallel with the vertical stand through dead lever 8, be equipped with the liquid level proximity switch of three difference in height on the vertical stand, from bottom to top be low liquid level proximity switch 901, well liquid level proximity switch 902 and high liquid level proximity switch 903 in proper order, high liquid level proximity switch top still is equipped with. The one end that the float lever was equipped with the response lug passes through the through-hole cover on the horizontal stand and establishes in the scale guide arm outside, and the response lug is located one side that the float lever is close to liquid level proximity switch, and well liquid level proximity switch passes through circuit connection with suction pump A, and high liquid level proximity switch passes through circuit connection with suction pump B, is equipped with audible-visual annunciator L5 in staff's the office, and the warning proximity switch passes through circuit connection with audible-visual annunciator.
As shown in fig. 2, a power control cabinet 11 is also arranged outside the sewage tank, and a power indicator lamp L1 is arranged on the cabinet body of the power control cabinet; a liquid level indicator lamp comprising a medium liquid level indicator lamp L2 and a high liquid level indicator lamp L3; an alarm indicator lamp L4; the water pump running indicator lamps comprise a pump A fault indicator lamp HY1, a pump B fault indicator lamp HY2, a pump C fault indicator lamp HY3, a pump A running indicator lamp HG1, a pump B running indicator lamp HG2, a pump C running indicator lamp HG3, a pump A stop indicator lamp HR1, a pump B stop indicator lamp HR2 and a pump C stop indicator lamp HR 3; a water pump control switch including a pump A operation switch SB2, a pump A stop switch SB1, a pump B operation switch SB4, a pump B stop switch SB3, a pump C operation switch SB6 and a pump C stop switch SB 5; and a function switching knob including a pump a function switching knob SA1, a pump B function switching knob SA2, and a pump C function switching knob SA 3. Each running indicator light and each stop indicator light are respectively arranged in the corresponding running switch and the corresponding stop switch. The power supply indicator lamp is connected with the control power supply through a circuit, the alarm indicator lamp is connected with the standby water suction pump C through a circuit, and the middle liquid level indicator lamp and the high liquid level indicator lamp are respectively connected with the middle liquid level proximity switch and the high liquid level proximity switch through a circuit. The water pump operation indicator lamp, the water pump control switch and the function conversion knob are respectively connected with the corresponding water pump or the standby water pump through circuits.
As shown in fig. 3, the control circuit for the operation of the water pump a comprises a pump a breaker QF1, a pump a contactor KM1, a pump a thermal relay FR1 and the water pump a which are connected in sequence; the control circuit for the operation of the water pump B comprises a pump B breaker QF2, a pump B contactor KM2, a pump B thermal relay FR2 and the water pump B which are sequentially connected; the control circuit for the operation of the spare water pump C comprises a pump C breaker QF3, a pump C contactor KM3, a pump C thermal relay FR3 and the spare water pump C which are sequentially connected. The pump A contactor is controlled by a middle liquid level proximity switch, and the pump B contactor is controlled by a high liquid level proximity switch.
As shown in fig. 4, the control circuit of the medium liquid level indicator lamp comprises a low liquid level proximity switch 901, a medium liquid level proximity switch 902, a medium liquid level intermediate relay KA1 and a medium liquid level indicator lamp L2 which are connected in sequence; the control circuit of the high liquid level indicator lamp comprises a high liquid level proximity switch 903, a middle liquid level proximity switch 902, a high liquid level intermediate relay KA2 and a high liquid level indicator lamp L3 which are connected in sequence; the control circuit of the audible and visual alarm comprises a high liquid level proximity switch 903, an alarm proximity switch 10, an alarm intermediate relay KA3 and an audible and visual alarm L5 which are connected in sequence.
As shown in fig. 6, the normally open contact of the pump a contactor KM1 is connected with a pump a running indicator HG1, the normally closed contact is connected with a pump a stop indicator HR1, and the normally open contact of the pump a thermal relay FR1 is connected with a pump a fault indicator HY 1; the normally open contact of the pump B contactor KM2 is connected with a pump B operation indicator lamp HG2, the normally closed contact is connected with a pump B stop indicator lamp HR2, and the normally open contact of a pump B thermal relay FR2 is connected with a pump B fault indicator lamp HY 2; the normally open contact of the pump C contactor KM3 is connected with a pump C operation indicator lamp HG3, the normally closed contact is connected with a pump C stop indicator lamp HR3, and the normally open contact of a pump C thermal relay FR3 is connected with a pump C fault indicator lamp HY 3.
Along with the up-and-down change of the water level in the sewage tank, the position of the floating ball changes along with the up-and-down change of the water level in the sewage tank, so that the position of the floating rod sleeved outside the scale guide rod changes, and a worker can read the actual liquid level in the sewage tank in real time outside the sewage tank according to the scale on the scale guide rod corresponding to the top of the floating rod. And when the induction convex block on the floating rod is close to the induction surfaces on different liquid level proximity switches, the corresponding liquid level proximity switches can generate corresponding actions, so that the corresponding water suction pumps are controlled to start or stop working:
when the liquid level is lower than the low liquid level proximity switch, all the pumps are not started; when the liquid level rises to the middle liquid level, the normally open point of the middle liquid level proximity switch is closed, so that the coil of the middle liquid level intermediate relay KA1 is electrified for suction, the water suction pump A is started, and a middle liquid level indicator lamp and a pump A operation indicator lamp on a panel of the power control cabinet are on; when the liquid level rises to a high liquid level, the normally open point of the high liquid level proximity switch is closed, so that the coil of the high liquid level intermediate relay KA2 is electrified for suction, the water suction pump B is started, and a high liquid level indicator lamp and a pump B operation indicator lamp on the panel of the power control cabinet are on; when the liquid level continues to rise to the alarm position, the alarm position is closed close to the normally-open point of the switch, so that the coil of the alarm intermediate relay KA3 is electrified for suction, and an audible and visual alarm in an office alarms to remind a worker of emergency treatment; when the liquid level is reduced to a high liquid level, the normally-closed point of the high liquid level proximity switch is disconnected, so that the KA3 coil is powered off, the audible and visual alarm is simultaneously turned off, and the alarm is released; at the moment, the water suction pump A and the water suction pump B continue to operate; when the liquid level is reduced to the middle liquid level, the normal close point of the middle liquid level proximity switch is disconnected, so that the KA2 coil is de-energized, and the water suction pump B stops running; when the liquid level is reduced to a low liquid level, the low liquid level proximity switch is disconnected at a normally-closed point, so that the KA1 coil is de-energized, and the water suction pump A stops running.
As shown in FIG. 5, the function switching knob includes two contacts, one of which is connected to the automatic liquid level control circuit and the other of which is connected to the manual control circuit. The automatic liquid level control loop of the water pump A comprises a middle liquid level intermediate relay KA1, a pump A contactor KM1 and a pump A thermal relay FR 1; the automatic liquid level control loop of the water pump B comprises a high liquid level intermediate relay KA2, a pump B contactor KM2 and a pump B thermal relay FR 2; the liquid level automatic control loop of the spare water pump C comprises a pump C time relay KT1, a pump C contactor KM3 and a pump C thermal relay FR 3. The manual control loop of the water pump A comprises a pump A stop switch SB1, a pump A operation switch SB2, a pump A contactor KM1 and a pump A thermal relay FR1 which are sequentially connected; the manual control loop of the water pump B comprises a pump B stop switch SB3, a pump B operation switch SB4, a pump B contactor KM2 and a pump B thermal relay FR2 which are sequentially connected; the manual control loop of the spare water pump C comprises a pump C stop switch SB5, a pump C running switch SB6, a pump C contactor KM3 and a pump C thermal relay FR3 which are connected in sequence. And the pump C time relay KT1 is connected with the normally closed contacts of an alarm indicator lamp L4, a middle liquid level intermediate relay KA1, a high liquid level intermediate relay KA2, a pump A contactor KM1 and a pump B contactor KM 2.
The working principle of the standby water pump C is as follows:
under the running state of the water pump A and the water pump B and the standby state of the standby water pump C, the function conversion knobs SA1, SA2 and SA3 are all driven on the liquid level automatic control gear.
When the water pump A has a fault, the FR1 normally-closed contact is disconnected, the fault indicator lamp HY1 of the pump A is on, the KM1 coil is de-energized, the KM1 normally-open contact is opened, the water pump A stops running, the KM1 normally-closed contact is attracted, the pump C time relay KT1 coil is energized, the corresponding normally-open contact KT1 is closed after time delay, the KM3 coil is energized, the KM3 normally-open contact is attracted in the pump C main loop, and the standby water pump C is started.
Similarly, after water pump B broke down, FR2 normally closed contact disconnection, pump B trouble pilot lamp HY2 is bright, KM2 coil loses electricity, KM2 normally open contact is opened, water pump B stops operating, KM2 normally closed contact actuation, pump C time relay KT1 coil is electrified, corresponding normally open contact KT1 is closed after the time delay, KM3 coil is electrified, KM3 normally open contact actuation in the pump C major loop, start reserve water pump C.
When reserve suction pump C launched, the warning light on the panel of power control cabinet lights simultaneously, reminds patrolling and examining personnel to look over, needs the reason of the start-up of inspection reserve suction pump, in time overhauls the suction pump.
Claims (10)
1. A closed sewage pool water level control device is characterized by comprising a floating ball positioned in a sewage pool, a fixed support arranged above the sewage pool and a plurality of water pumps connected with the bottom of the sewage pool through pipelines, wherein a floating rod is arranged above the floating ball, one end of the floating rod, far away from the floating ball, is provided with an induction bump, the fixed support comprises a horizontal support parallel to the bottom of the sewage pool and a vertical support vertically arranged on the horizontal support, the horizontal support is provided with a through hole matched with the floating rod, the top end of the vertical support is connected with a scale guide rod parallel to the vertical support through a fixed rod, the vertical support is provided with a plurality of liquid level proximity switches with different heights, one end of the floating rod, provided with the induction bump, penetrates through the through hole on the horizontal support and is sleeved outside the scale guide rod, and the induction bump is positioned on one side, the liquid level proximity switches are respectively connected with the corresponding water pumps through circuits.
2. The water level control device for the closed sewage pool according to claim 1, wherein a power control cabinet is further arranged outside the sewage pool, a power indicator, a liquid level indicator, a water pump operation indicator, a water pump control switch and a function conversion knob are arranged on a cabinet body of the power control cabinet, the power indicator is in circuit connection with a power source, the liquid level indicator is in circuit connection with a corresponding liquid level proximity switch, and the water pump operation indicator, the water pump control switch and the function conversion knob are in circuit connection with a water pump.
3. The closed sewage pool water level control device as claimed in claim 2, wherein the pump control switch comprises an operation switch and a stop switch, the pump operation indicator lamp comprises a fault indicator lamp, an operation indicator lamp and a stop indicator lamp, and the operation indicator lamp and the stop indicator lamp are respectively arranged in the operation switch and the stop switch.
4. The water level control device for the closed sewage pool as claimed in claim 1 or 2, wherein a spare water pump connected with the pool bottom through a pipeline is further arranged outside the sewage pool, and an alarm indicator lamp connected with the spare water pump through a circuit is arranged on a cabinet body of the power control cabinet.
5. The closed sewage pool water level control device as claimed in claim 2, wherein an alarm proximity switch is further provided on the vertical bracket above the liquid level proximity switch, and a sound and light alarm is provided near the sewage pool, wherein the alarm proximity switch is electrically connected with the sound and light alarm.
6. The water level control device for the closed sewage pool as claimed in claim 1, wherein the control circuit for the operation of the water pump comprises a circuit breaker, a contactor, a thermal relay and the water pump which are connected in sequence, and the circuit breaker is controlled by a liquid level proximity switch.
7. The water level control device for the closed sewage pool as claimed in claim 5, wherein the control circuit of the liquid level indicator lamp comprises a liquid level proximity switch, an intermediate relay corresponding to the liquid level indicator lamp and a liquid level indicator lamp which are connected in sequence, and the control circuit of the audible and visual alarm comprises an alarm proximity switch, an intermediate relay corresponding to the audible and visual alarm and an audible and visual alarm which are connected in sequence.
8. A closed sewage pool water level control device as claimed in claim 3, wherein said function switching knob comprises two contacts, one of which is connected with the automatic liquid level control circuit, the other of which is connected with the manual control circuit, the automatic liquid level control circuit of each water pump comprises an intermediate relay, a contactor, and a thermal relay, the automatic liquid level control circuit of the standby water pump comprises a time relay, a contactor, and a thermal relay, the manual control circuit comprises a running switch, a stop switch, a contactor, and a thermal relay which are connected in sequence, and the time relay in the automatic liquid level control circuit of the standby water pump is connected with the intermediate relay, the contactor, and the alarm indicator lamp in the automatic liquid level control circuit of the water pump.
9. The device as claimed in claim 8, wherein the contactor and the thermal relay include a normally open contact and a normally closed contact, the normally open contact of the contactor is connected to the operation indicator, the normally closed contact of the contactor is connected to the stop indicator, the normally open contact of the thermal relay is connected to the fault indicator, and the normally closed contact of the thermal relay is connected to the suction pump or the backup suction pump.
10. The water level control device for the closed sewage pool as claimed in claim 9, wherein the time relay and the alarm indicator lamp in the automatic control loop for the liquid level of the standby suction pump are connected with the normally closed contacts of the contactor in the automatic control loop for the liquid level of the suction pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921067203.7U CN210769265U (en) | 2019-07-09 | 2019-07-09 | Closed effluent water sump water level control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198907A (en) * | 2020-09-22 | 2021-01-08 | 张家港扬子江冷轧板有限公司 | Device and method for automatically controlling level of pit sewage |
| CN112729475A (en) * | 2020-12-26 | 2021-04-30 | 钟星建设集团有限公司 | Fire water tank water level monitoring alarm device |
| CN115492224A (en) * | 2022-11-17 | 2022-12-20 | 四川坤睿泽智慧科技有限公司 | Automatic inspection system and inspection method for pressure drainage |
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2019
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198907A (en) * | 2020-09-22 | 2021-01-08 | 张家港扬子江冷轧板有限公司 | Device and method for automatically controlling level of pit sewage |
| CN112729475A (en) * | 2020-12-26 | 2021-04-30 | 钟星建设集团有限公司 | Fire water tank water level monitoring alarm device |
| CN112729475B (en) * | 2020-12-26 | 2024-03-15 | 钟星建设集团有限公司 | Fire-fighting water tank water level monitoring alarm device |
| CN115492224A (en) * | 2022-11-17 | 2022-12-20 | 四川坤睿泽智慧科技有限公司 | Automatic inspection system and inspection method for pressure drainage |
| CN115492224B (en) * | 2022-11-17 | 2023-03-07 | 四川坤睿泽智慧科技有限公司 | Automatic inspection system and inspection method for pressure drainage |
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