Rainwater induction control automatic start-stop draining pump device

Abstract

The utility model belongs to the technical field of road drainage, and aims to solve the problems that the water volume is increased in heavy rainy days, rainwater and wastewater enter a sewage treatment tank of a domestic sewage station, a sewage treatment system cannot treat wastewater in time, and equipment is broken down due to large incoming water volume. According to the device, a water drop inductive sensor is used for sensing raindrops and is arranged above a water storage barrel, and a water level probe is located in the water storage barrel and corresponds to a preset water level position in the barrel; the electromagnetic valve is arranged at the water outlet end of the bottom of the water storage barrel and is in a normally-open state, the water drop inductive sensor is electrically connected with the electromagnetic valve through the control assembly, and the water level probe is connected with the drainage pump through the control assembly. The control assembly controls starting and stopping of the drainage pump based on signals transmitted by the rainfall detector. The device is simple in structure, the rainfall is detected through the rainfall detector, the control assembly controls the drainage pump to be automatically started and stopped based on a signal transmitted by the rainfall detector, and the water treatment pressure of the sewage treatment station when the rainfall is large is relieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to road drainage technical field, concretely relates to a rainwater response control automatic start and stop drainage pump device. BACKGROUND

[0002] The conventional rainwater drainage system often relies on manual operation or fixed time setting to control the opening and closing switch mechanism of the gate valve, which cannot automatically adjust the drainage capacity according to the real-time rainfall intensity, and may cause poor drainage or resource waste.

[0003] The intermediate pump house has a 7.5KW drainage pump, which continuously transfers domestic wastewater to the domestic wastewater station. However, when it rains heavily, the water volume increases, and the rainwater and wastewater enter the domestic wastewater station sewage treatment tank. The wastewater treatment system cannot timely treat the wastewater, and the large inflow volume causes the equipment to be paralyzed. The drainage pump needs to be manually stopped to stop sending water to the domestic wastewater station, and then restarted manually after the rain stops. It cannot realize intelligent control, and may cause flooding accidents due to untimely start and stop. UTILITY MODEL CONTENT

[0004] The utility model provides a rainwater response control automatic start and stop drainage pump device to solve at least one of the above technical problems in the prior art.

[0005] The utility model adopts the following technical scheme: a rainwater response control automatic start and stop drainage pump device, which comprises a rainfall detector, a control assembly and a drainage pump. The rainfall detector comprises a water drop sensing sensor, a water storage bucket, a water level probe and an electromagnetic valve. The water drop sensing sensor is used for sensing raindrops and is arranged above the water storage bucket. The water level probe is located inside the water storage bucket and corresponds to a preset water level position in the bucket. The electromagnetic valve is arranged at the water outlet end of the bottom of the water storage bucket and is in a normally open state. The water drop sensing sensor is electrically connected to the electromagnetic valve through the control assembly. The water level probe is connected to the drainage pump through the control assembly. The control assembly controls the start and stop of the drainage pump based on the signals transmitted by the rainfall detector.

[0006] Preferably, the control assembly comprises a PLC controller, an intermediate relay KA, a contactor KM and a time relay KT.

[0007] The signal input end of the PLC controller is connected to the water drop sensing sensor and the water level probe.

[0008] The signal output end of the PLC controller is connected to the electromagnetic valve and the intermediate relay KA.

[0009] The normally open contact of the intermediate relay KA, the normally closed contact of the contactor KM and the coil of the time relay KT are connected in series to form a first circuit.

[0010] The power-on delay closing contact of the time relay KT is connected in parallel with the auxiliary normally open contact of the contactor KM, and then connected in series with the normally open contact of the intermediate relay KA and the coil of the contactor KM to form a second circuit.

[0011] The main normally open contact of the contactor KM is connected with the motor of the drainage pump to form a third circuit.

[0012] The PLC controller, the first circuit, the second circuit and the third circuit are all powered by the power supply assembly.

[0013] Preferably, the upper end of the water storage bucket is provided with a rainwater sump, and the rainwater sump is a reverse conical structure and has a passage in communication with the water storage bucket at the lower end.

[0014] Preferably, the water droplet sensing sensor has a sensing panel for sensing raindrops, and the sensing panel is arranged above the rainwater sump through a support rod.

[0015] Preferably, the rain amount detector is installed on the roof of the transfer pump house, and the control assembly is arranged in the control cabinet of the transfer pump house, and the rain amount detector is connected with the control assembly through a signal line.

[0016] Preferably, the drainage pump is arranged in the transfer pump house and is used for pumping domestic wastewater to a sewage treatment station, and the drainage pump is connected with the control assembly through a water pump power line.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] The device has simple structure, detects rainfall amount through the rain amount detector, and controls the automatic start and stop of the drainage pump based on the signal transmitted by the rain amount detector, thereby reducing the water treatment pressure of the sewage treatment station when the rainfall amount is large. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0020] Figure 1 is a structure diagram of the rain amount detector of the present embodiment;

[0021] Figure 2 is an input and output diagram of the PLC controller of the present embodiment;

[0022] Figure 3 is a schematic diagram of the first circuit of the present embodiment;

[0023] Figure 4is a schematic diagram of a second circuit of the embodiment;

[0024] Figure 5 is a schematic diagram of a third circuit of the embodiment.

[0025] In the figure: 1-droplet induction sensor; 2-water storage bucket; 3-water level probe; 4-drainage pump; 5-solenoid valve; 6-rainwater sump; 7-water storage bucket support. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model are clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions of the embodiments of the utility model, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should fall within the scope of the technical content disclosed by the utility model. It should be noted that in the specification, relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any actual relationship or order between the entities.

[0028] The utility model provides an embodiment:

[0029] As Figure 1 shown, a rainwater induction control automatic start-stop drainage pump device, including rainfall detector, control assembly and drainage pump 4;Wherein the rainfall detector includes water droplet induction sensor 1, water storage bucket 2, water level probe 3 and solenoid valve 5, water droplet induction sensor 1 is used to sense raindrop and is arranged above water storage bucket 2, water level probe 3 is located in the inside of water storage bucket 2 and corresponds the preset water level position in the bucket;Solenoid valve 5 is arranged at the water outlet end of the bottom of water storage bucket 2 and is in the normally open state, water droplet induction sensor 1 is electrically connected with solenoid valve 5 through control assembly, water level probe 3 is connected with drainage pump 4 through control assembly;Control assembly controls the start-stop of drainage pump 4 based on the signal transmitted by rainfall detector.

[0030] As Figures 2 to 5As shown, the control assembly includes a PLC controller, an intermediate relay KA, a contactor KM and a time relay KT; a signal input end of the PLC controller is connected with the water droplet sensing sensor 1 and the water level probe 3; a signal output end of the PLC controller is connected with the electromagnetic valve 5 and the intermediate relay KA;

[0031] The normally open contact of the intermediate relay KA, the normally closed contact of the contactor KM and the coil of the time relay KT are connected in series to form a first circuit; the power-on delay closing contact of the time relay KT and the auxiliary normally open contact of the contactor KM are connected in parallel, and the normally open contact of the intermediate relay KA and the coil of the contactor KM are connected in series to form a second circuit; the main normally open contact of the contactor KM is connected with the motor of the drainage pump 4 to form a third circuit; the PLC controller, the first circuit, the second circuit and the third circuit are all powered by the power supply assembly.

[0032] The upper end of the water storage bucket 2 is provided with a rainwater sump 6 which is a reverse conical structure and has a passage in communication with the water storage bucket 2 at the lower end, and the lower end of the water storage bucket 2 is provided with a water storage bucket support 7. The water droplet sensing sensor 1 has a sensing panel for sensing raindrops, which is arranged above the rainwater sump 6 by a support rod.

[0033] The rain amount detector is installed on the roof of the transfer pump house, the control assembly is arranged in the control cabinet of the transfer pump house, and the rain amount detector is connected with the control assembly through a signal line. The drainage pump 4 is arranged in the transfer pump house and is used for pumping domestic wastewater to a sewage treatment station, and the drainage pump 4 is connected with the control assembly through a water pump power supply line.

[0034] Working principle:

[0035] 1. When the sensing panel senses raindrops, the water droplet sensing sensor 1 transmits the signal to the input end I0.1 of the PLC controller, and the output end Q0.1 of the PLC controller outputs a high-level signal to the electromagnetic valve 5, so that the electromagnetic valve 5 is actuated from the normally open state to the closed state, and the water storage bucket 2 starts to store water; when the rainfall amount becomes larger and larger, the water level in the water storage bucket 2 exceeds the water level probe 3, the water level probe 3 transmits the signal to the input end I0.2 of the PLC controller, and the output end Q0.2 of the PLC controller outputs a low-level signal to the intermediate relay KA, so that the coil of the intermediate relay KA loses power.

[0036] After the coil of the intermediate relay KA loses power, the normally open contact of the intermediate relay KA in the second circuit is disconnected, the contactor KM loses power, the main normally open contact of the contactor KM connected with the drainage pump 4 is disconnected, and the drainage pump stops working.

[0037] 2. After the rain stops, the water droplets on the surface of the induction panel gradually dry, and the water droplet induction sensor 1 transmits the signal to the input terminal I0.1 of the PLC controller, and the output terminal Q0.1 of the PLC controller outputs a low-level signal to the electromagnetic valve 5, and the electromagnetic valve 5 changes from the closed state to the open state, and the water storage bucket 2 starts to drain water, and when the water level in the water storage bucket 2 is lower than the water level probe 3, the water level probe 3 transmits a signal to the input terminal I0.2 of the PLC controller, and the output terminal Q0.2 of the PLC controller outputs a high-level signal to the intermediate relay KA, and the coil of the intermediate relay KA is powered on.

[0038] After the coil of the intermediate relay KA loses power, the normally open contacts of the intermediate relay KA in the first circuit and the second circuit are closed, the coil of the time relay KT in the first circuit is powered on, and after a delay (the time 0-1 hour is adjustable), the time relay in the second circuit is powered on, the coil of the contactor KM is powered on, the main normally open contact of the contactor KM is closed, and the drainage pump starts to work; At the same time, the auxiliary normally open contact of the contactor KM is closed, realizing the self-locking of the second circuit; the normally closed contact of the contactor KM is opened, and the coil of the time relay KT in the first circuit loses power.

[0039] By adopting the above technical scheme, the rainwater automatic start-stop drainage pump device can automatically judge and control the opening and closing of the gate valve according to the rainfall intensity, improve the response speed and drainage efficiency of the drainage system of the sewage station, and effectively reduce the waterlogging problem caused by accumulated water.

[0040] The above describes only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rainwater-induced control automatic start-stop drainage pump device, characterized in that: it comprises a rainfall detector, a control assembly and a drainage pump (4); wherein the rainfall detector comprises a water droplet induction sensor (1), a water storage bucket (2), a water level probe (3) and an electromagnetic valve (5), the water droplet induction sensor (1) is used for inducing raindrops and is arranged above the water storage bucket (2), the water level probe (3) is located in the interior of the water storage bucket (2) and corresponds to a preset water level position in the bucket; the electromagnetic valve (5) is arranged at a water outlet end of the bottom of the water storage bucket (2) and is in a normally open state, the water droplet induction sensor (1) is electrically connected with the electromagnetic valve (5) through the control assembly, and the water level probe (3) is connected with the drainage pump (4) through the control assembly; the control assembly controls the start and stop of the drainage pump (4) based on signals transmitted by the rainfall detector. The control assembly comprises a PLC controller, an intermediate relay KA, a contactor KM and a time relay KT. The signal input end of the PLC controller is connected with the water droplet induction sensor (1) and the water level probe (3). The signal output end of the PLC controller is connected with the electromagnetic valve (5) and the intermediate relay KA.

2. The rain sensor controlled automatic start-stop drainage pump device according to claim 1, characterized in that: The normally open contact of the intermediate relay KA, the normally closed contact of the contactor KM and the coil of the time relay KT are connected in series to form a first circuit. The power-on delay closing contact of the time relay KT and the auxiliary normally open contact of the contactor KM are connected in parallel to the normally open contact of the intermediate relay KA and the coil of the contactor KM to form a second circuit. The main normally open contact of the contactor KM is connected with the motor of the drainage pump (4) to form a third circuit. The PLC controller, the first circuit, the second circuit and the third circuit are all powered by a power supply assembly. The upper end of the water storage bucket (2) is provided with a rainwater accumulation tray (6), the rainwater accumulation tray (6) is in a reverse conical structure and has a passage in communication with the water storage bucket (2) at the lower end, and the lower end of the water storage bucket (2) is provided with a water storage bucket support (7). The water droplet induction sensor (1) has an induction panel for inducing raindrops, and the induction panel is arranged above the rainwater accumulation tray (6) through a support rod. The rainfall detector is installed on the roof of a transfer pump house, the control assembly is arranged in a control cabinet of the transfer pump house, and the rainfall detector and the control assembly are connected through a signal line.

3. The rain sensor controlled automatic start-stop drainage pump device according to claim 1, wherein: The drainage pump (4) is arranged in the transfer pump house and is used for pumping domestic wastewater to a sewage treatment station, and the drainage pump (4) is connected with the control assembly through a water pump power supply line.

4. The rain sensor controlled automatic start-stop drainage pump device according to claim 3, characterized in that: ​ 5. The rain sensor controlled automatic start-stop drainage pump device according to claim 1, wherein: ​ 6. The rain sensor controlled automatic start-stop drainage pump device according to claim 5, wherein: ​

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