CN214751495U - Automatic block-removing system for sewer pipe - Google Patents

Abstract

An automatic sewer pipe blockage removing system comprises a PLC control system, a water tank system and an automatic blockage removing system; the water tank system comprises a water tank, a solenoid valve YV and a liquid level transmitter LT, wherein the top cover of the water tank is provided with a water pipe inlet, the solenoid valve YV is arranged on a water pipe, and the liquid level transmitter LT is arranged on the top cover and extends into the water tank; the automatic blockage removing system comprises a pressure transmitter PT, a sewer pipe inlet electric door, a water pump outlet electric door and a water pump, wherein the pressure transmitter PT is arranged on a sewer pipe at a sewer pipe inlet, the sewer pipe inlet electric door is arranged at the bottom of the pressure transmitter PT, a water inlet of the water pump is connected with the bottom of a water tank, and a water outlet is connected with a sewer pipe at the bottom of the sewer pipe inlet electric door through the water pump outlet electric door; the input end of the PLC control system is connected with the liquid level transmitter LT and the pressure transmitter PT, and the output end of the PLC control system is connected with the electromagnetic valve YV, the two electric doors and the water pump. The system automatically starts a pump to supply water, pressurize and flush, utilizes the high thrust of water to remove blockage, does not need manual operation, and is convenient to overhaul.

Description

Automatic block-removing system for sewer pipe

Technical Field

The utility model relates to a arrange stifled technical field, concretely relates to automatic stifled system of arranging of downcomer.

Background

The sewer pipe is the main part of the drainage system of modern buildings, and the upper part of the inlet of the sewer pipe is connected with direct sewage outlets such as a hand washing basin, a toilet bowl and a ground drainage outlet. When blockage occurs, the direct sewage discharge outlets can be directly blocked by a tool manually, but when the blockage is positioned below the inlet of the sewer pipe, the direct blocking becomes difficult, particularly after the blockage is positioned after the sewer pipe turns. The prior art has a lot of applications to a PLC control system, and has more occasions for carrying out process control by using equipment such as a water pump, an electromagnetic valve and an electric door, but the application to the aspect of drainage and blockage of building sewer pipes is less.

Disclosure of Invention

An object of the utility model is to provide an automatic stifled system of arranging of downcomer uses the automatic stifled system of arranging of downcomer of PLC control, can realize realizing the automatic bath of downcomer under the condition of unmanned management, operation and arrange stifled function to overcome the above-mentioned not enough that prior art exists.

The utility model adopts the technical proposal that: the utility model provides an automatic stifled system of arranging of downcomer which characterized in that: the automatic blockage removing device comprises a PLC control system, a water tank system and an automatic blockage removing system, wherein the water tank system and the automatic blockage removing system are connected with the PLC control system;

the water tank system comprises a water tank, a solenoid valve YV and a liquid level transmitter LT, wherein a top cover of the water tank is provided with a port for leading in a tap water pipe, the solenoid valve YV is arranged on the tap water pipe, the liquid level transmitter LT is arranged on the top cover of the water tank, and a probe of the liquid level transmitter LT extends into the water tank from a reserved port of the top cover of the water tank;

the automatic blockage removing system comprises a pressure transmitter PT, a sewer pipe inlet electric door, a water pump outlet electric door and a water pump, wherein the pressure transmitter PT is installed on a sewer pipe near the turning of a sewer pipe inlet, the sewer pipe inlet electric door is installed on the sewer pipe near the bottom of the pressure transmitter PT, a water inlet of the water pump is connected with a water outlet at the bottom of the water tank through a water pipe, and a water outlet of the water pump is connected with the sewer pipe at the bottom of the sewer pipe inlet electric door through the water pump outlet electric door;

the input end of the PLC control system is respectively connected with the liquid level transmitter LT and the pressure transmitter PT, and the output end of the PLC control system is respectively connected with the electromagnetic valve YV, the sewer pipe inlet electric door, the water pump outlet electric door and the water pump.

The further technical scheme is as follows: the PLC control system adopts an S7-200 PLC control system and comprises a CPU222, a contactor KM1 and a relay group, wherein the relay group comprises relays KM 2-KM 5;

2 input interfaces of the CPU222 are respectively connected with a liquid level transmitter LT and a pressure transmitter PT, and the liquid level transmitter LT and the pressure transmitter PT are simultaneously connected with a direct current power supply of the CPU222 in series;

6 output interfaces of the CPU222 are respectively connected with the solenoid valve YV, the contactor KM1 and the coil of the relay group, and the solenoid valve YV, the contactor KM1 and the coil of the relay group are simultaneously connected in series with a 220V alternating current power supply;

the contact of the contactor KM1 is connected with a starting signal line of the water pump, the contacts of the relay KM2 and the relay KM3 are respectively connected with an opening and closing signal line of the electric door at the inlet of the sewer pipe, and the contacts of the relay KM4 and the relay KM5 are respectively connected with an opening and closing signal line of the electric door at the outlet of the water pump.

The further technical scheme is as follows: the sewer pipe inlet electric door and the water pump outlet electric door adopt 220V power supplies, and the water pump adopts 380V power supplies.

Since the technical scheme is used, the utility model discloses automatic stifled system of arranging of sewer pipe has following beneficial effect:

1. the utility model provides an automatic stifled system of arranging of downcomer adopts PLC control, the liquid level changer LT of water tank, survey stifled pressure transmitter PT respectively with the liquid level under the downcomer corner, pressure detection signal is sent into PLC by input interface, PLC gathers, behind the processing signal, can block up the automatic judgement to the downcomer according to survey stifled pressure size under the downcomer corner, if block up then through output interface with control signal transmission to the water tank top add water solenoid valve YV, the water pump, downcomer entry electrically operated gate and water pump outlet electrically operated gate, PLC control electrically operated gate open, close, start of water pump, stop, thereby realize the automatic control and arrange stifled function of system, the trouble that the sewer pipe blockage caused for people's life has been solved.

2. Because this application is automatic arranges stifled to the downcomer, realizes systematic automation, has avoided manual operation.

3. This application PLC sets up and can open, close downcomer entry electrically operated gate and water pump export electrically operated gate according to reasonable sequence control to and open, the pump of cutting off the water, overflow when avoiding washing by water, and cut off the pump after downcomer upper portion ponding inflow water pump scheduling problem, the action sequence reasonable in design of each equipment.

4. The Siemens S7-200 PLC is used, the CUP222 type CPU module is selected, the number of interfaces can meet the requirement, no interface is wasted, and compared with the use of other CPU modules in the application, the highest cost performance can be achieved, and the better economy is embodied; meanwhile, because the water pump, the electromagnetic valve YV, the electric door and other strong electric equipment need to be controlled, the PLC is very convenient to control and can achieve high reliability.

5. Structurally, the PLC is used as the center, and other equipment is not influenced except the mutual contact with the PLC, so that the fault maintenance is very convenient.

Drawings

FIG. 1 is a schematic structural view of an automatic sewer pipe blockage removing system according to the present invention;

FIG. 2 is a block diagram of an input/output connection structure of a PLC control system;

FIG. 3 is a schematic circuit diagram of a PLC control system;

fig. 4 is a flow chart of the automatic sewer pipe blockage removing system of the utility model during operation.

In the figure:

1-water tank, 2-electromagnetic valve YV, 3-liquid level transmitter LT, 4-sewage port, 5-sewer pipe inlet, 6-pressure transmitter PT, 7-sewer pipe inlet electric door, 8-water pump outlet electric door and 9-water pump.

Detailed Description

Example (b):

an automatic sewer pipe blockage removing system comprises a PLC control system, a water tank system and an automatic blockage removing system, wherein the water tank system and the automatic blockage removing system are connected with the PLC control system;

the water tank system comprises a water tank 1, an electromagnetic valve YV2 and a liquid level transmitter LT3, wherein the water tank adopts a cuboid aluminum water tank with the volume of 120L, in order to prevent sundries from falling, the top of the water tank is provided with a cover, the top cover of the water tank is provided with a port for leading a tap water pipe into, the electromagnetic valve YV is installed on the tap water pipe, the liquid level transmitter LT adopts a Siemens 7ML5050 type ultrasonic liquid level transmitter, the liquid level transmitter is installed on the top cover of the water tank, and a probe of the liquid level transmitter extends into the water tank from a reserved port of the top cover of the water tank;

the automatic blockage removing system comprises a pressure transmitter PT6, a sewer pipe inlet electric door 7, a water pump outlet electric door 8 and a water pump 9, wherein the pressure transmitter PT is installed on a sewer pipe near the turning of a sewer pipe inlet 5, the sewer pipe inlet electric door is installed on the sewer pipe near the bottom of the pressure transmitter PT, a water inlet of the water pump is connected with a water outlet at the bottom of the water tank through a water pipe, a water outlet of the water pump is connected with the sewer pipe at the bottom of the sewer pipe inlet electric door through the water pump outlet electric door, and the water tank system plays a role of providing enough water quantity when the water pump is flushed and blocked;

the PLC control system adopts an S7-200 PLC control system and comprises a CPU222, a contactor KM1 and a relay group, wherein the relay group comprises relays KM 2-KM 5;

2 input interfaces of the CPU222 are respectively connected with a liquid level transmitter LT and a pressure transmitter PT, the liquid level transmitter LT and the pressure transmitter PT are simultaneously connected with a direct current power supply of the CPU222 in series, the liquid level transmitter LT is used for measuring the liquid level of the water tank in real time and converting a liquid level height signal into a digital signal and transmitting the digital signal to the CPU222 through the CPU222 input interface, and the pressure transmitter PT can measure the water pressure of a sewer pipe near a turning of the inlet of the water pipe in real time and transmit the signal to the CPU222 through the CPU222 input interface;

6 output interfaces of the CPU222 are respectively connected with the solenoid valve YV, the contactor KM1 and the coil of the relay group, and the solenoid valve YV, the contactor KM1 and the coil of the relay group are simultaneously connected in series with a 220V alternating current power supply;

the contact of the contactor KM1 is connected with a starting signal line of the water pump, the contacts of the relay KM2 and the relay KM3 are respectively connected with an opening signal line and a closing signal line of the electric door at the inlet of the sewer pipe, and the contacts of the relay KM4 and the relay KM5 are respectively connected with an opening signal line and a closing signal line of the electric door at the outlet of the water pump;

the sewer pipe inlet electric door and the water pump outlet electric door adopt Ruiki RJ250 type electric actuators, adopt 220V power supplies, and the water pump 3 m lift 250ZLD-3 type axial-flow pump can reach the water pressure required by flushing and blockage removal, and uses 380V power supplies.

The utility model discloses automatic work flow of arranging stifled system of sewer pipe:

firstly, a pressure transmitter PT continuously detects the plugging pressure of a sewer pipe and transmits the plugging pressure to a PLC control system, and if the plugging pressure value is higher than a normal value and the time exceeds 8 minutes, the sewer pipe is considered to be plugged;

at the moment, the PLC control system controls an electromagnetic valve YV of a tap water pipe to be opened, water is injected into the water tank, and the water tank system starts to store water; meanwhile, according to the liquid level of the water tank measured in real time by the liquid level transmitter LT, when the liquid level of the water tank reaches the preset full water height, the PLC control system controls the electromagnetic valve YV of the tap water pipe to be closed, and the water storage is finished;

the PLC control system controls the electric door at the inlet of the sewer pipe to be closed, the electric door at the outlet of the water pump to be opened, and the water pump is started to start flushing and block removing at the same time, so that water is prevented from overflowing upwards from the drainage pipe during flushing;

fourthly, the water pump continuously pumps water, when the liquid level of the water tank is reduced to 0, the pump is stopped, the electric door at the outlet of the water pump is closed, and then the electric door at the inlet of the sewer pipe is opened, so that the water pump is prevented from being overheated and damaged when the water pump is not pumped out, and the accumulated water at the upper part of the electric door after the electric door at the inlet of the sewer pipe is opened is prevented from being poured into the water pump and the water tank;

if the measured blocking pressure is recovered to the normal value range, the blocking removal is considered to be successful, and the blocking removal is finished; if the pressure does not return to normal range and lasts for 8 min, the blockage is still detected, and the process is repeated from (two to (five)).

Claims (3)

1. The utility model provides an automatic stifled system of arranging of downcomer which characterized in that: the automatic blockage removing device comprises a PLC control system, a water tank system and an automatic blockage removing system, wherein the water tank system and the automatic blockage removing system are connected with the PLC control system;

the water tank system comprises a water tank (1), a solenoid valve YV (2) and a liquid level transmitter LT (3), wherein a top cover of the water tank is provided with a port for leading in a tap water pipe, the solenoid valve YV is arranged on the tap water pipe, the liquid level transmitter LT is arranged on the top cover of the water tank, and a probe of the liquid level transmitter LT extends into the water tank from a reserved port of the top cover of the water tank;

the automatic blockage removing system comprises a pressure transmitter PT (6), a sewer pipe inlet electric door (7), a water pump outlet electric door (8) and a water pump (9), wherein the pressure transmitter PT is installed on a sewer pipe near the turning of a sewer pipe inlet (5), the sewer pipe inlet electric door is installed on the sewer pipe near the bottom of the pressure transmitter PT, a water inlet of the water pump is connected with a water outlet at the bottom of the water tank through a water pipe, and a water outlet of the water pump is connected with the sewer pipe at the bottom of the sewer pipe inlet electric door through the water pump outlet electric door;

the input end of the PLC control system is respectively connected with the liquid level transmitter LT and the pressure transmitter PT, and the output end of the PLC control system is respectively connected with the electromagnetic valve YV, the sewer pipe inlet electric door, the water pump outlet electric door and the water pump.

2. The automatic drain and plug system according to claim 1, wherein: the PLC control system adopts an S7-200 PLC control system and comprises a CPU222, a contactor KM1 and a relay group, wherein the relay group comprises relays KM 2-KM 5;

2 input interfaces of the CPU222 are respectively connected with a liquid level transmitter LT and a pressure transmitter PT, and the liquid level transmitter LT and the pressure transmitter PT are simultaneously connected with a direct current power supply of the CPU222 in series;

6 output interfaces of the CPU222 are respectively connected with the solenoid valve YV, the contactor KM1 and the coil of the relay group, and the solenoid valve YV, the contactor KM1 and the coil of the relay group are simultaneously connected in series with a 220V alternating current power supply;

the contact of the contactor KM1 is connected with a starting signal line of the water pump, the contacts of the relay KM2 and the relay KM3 are respectively connected with an opening and closing signal line of the electric door at the inlet of the sewer pipe, and the contacts of the relay KM4 and the relay KM5 are respectively connected with an opening and closing signal line of the electric door at the outlet of the water pump.

3. The automatic drain and plug system according to claim 2, wherein: the sewer pipe inlet electric door and the water pump outlet electric door adopt 220V power supplies, and the water pump adopts 380V power supplies.

Images