RU204503U1 - FLOW PUMP - Google Patents

Abstract

The utility model relates to pumps, in particular to flow pumps, the area of application is sewage and sewerage, can be used both on an industrial scale and in private households. The task is to ensure that there are no liquid drain cycles. The technical result is to increase the pump performance by increasing the volume of the input flow liquid and the transmission of liquid with a temperature of up to 90 degrees, reducing the noise level of the pump, reducing the overall dimensions, ensuring maintainability, ease of use, increasing the reliability of the device due to a simple design scheme. The technical result is achieved due to the fact that the pump includes a water pump, a snail, a device branching, float, fitting with reed switch, electronic control unit, check valve, air check valve, tube Air check valve connected through an air outlet corrugated tube with a float-receiving chamber, in the form of which the upper part of the mustache is made branching triplets, releases the remaining air before the pump is turned on. In the float-receiving chamber of the branching device (tee) there is a fitting with a reed switch and a float in which a magnet is built. The pump is operated by interaction (signal transmission) of the reed switch with the electronic control unit (ECU). The water pump by the force of the expelled water opens the check valve connected to the pump. The float consists of two hemispheres of different lengths, connected by a common cover. In the elongated part of one of the hemispheres, a magnet is attached, which, by the force of a magnetic field, turns on a reed switch, from which a signal is sent to the electronic board of the electronic control unit.

Description

The utility model relates to pumps, in particular to flow pumps, the area of application is sewerage and drainage, can be used both on an industrial scale and in private households.

Known pumping unit for the removal of waste and sewage water. The station consists of a pump with a VORTEX impeller, a sealed reservoir for receiving waste water, an LC 109 control unit, devices for connection [https: //perm.teploprofi/com/catalogue/show/show/grundfos-m-12-1-4- 97901064 /].

Known sewer installation Termica COMPACT LIFT 250, has a cutting system, so it can be used to drain dirty wastewater. The motor is protected against overheating. The surface of the plastic housing is easy to clean. The level switch provides automatic start and stop of the unit. [https://tambov.vseinstrumenti.ru/sadovaya-ustanovki/termica/compact-lift-250/].

The disadvantages of these devices are large overall dimensions due to the presence of a storage chamber, a high noise level, since the pump operates in cycles with a small inlet flow of 15 l / min, operating temperatures from 0-35 or 50 degrees.

The goal is to ensure that there are no drain cycles.

The technical result is to increase the productivity of the pump, by increasing the volume of the inlet fluid flow and passing the liquid with a temperature of up to 90 degrees, reducing the pump noise level, reducing the overall dimensions, ensuring maintainability, ease of use, increasing the reliability of the device due to a simple design scheme.

The technical result is achieved due to the fact that the pump includes a water pump, a snail, a branching device, a float, a fitting with a reed switch, an electronic control unit, a check valve, an air check valve, and a tube.

The air check valve, connected through an air outlet corrugated tube with a float-receiving chamber, in the form of which the upper part of the branching device is made, releases the remaining air before the pump is turned on. In the float-receiving chamber of the branching device (tee) there is a fitting with a reed switch and a float with a built-in magnet. The operation of the pump is carried out by interaction (signal transmission) of the reed switch with the electronic control unit (ECU). The water pump by the force of the water being pushed opens the check valve connected to the pump.

The float consists of two hemispheres of different lengths, connected by a common cover. In the elongated part of one of the hemispheres, a magnet is attached, which by the force of a magnetic field turns on a reed switch, from which a signal is sent to the electronic board of the electronic control unit.

FIG. 1 shows an assembled flow pump.

FIG. 2 is an exploded rear view of the flow pump.

FIG. 3 is an exploded side view of the flow pump.

FIG. 4 shows a cross-section of the flow pump.

FIG. 5 shows a diagram of the electronic control unit.

The pump includes a water pump 1, a branching device 3 connected to it through a volute 2, the upper part of which is made in the form of a float-receiving chamber (not indicated in the figure), in which a float 4 and a fitting 10 with a reed switch 5 are located. a valve 7, connected to the volute 2, and an air check valve 8, connected through a tube 9 to the float-receiving chamber.

The upper branch part of the branching device 3 is located at a right angle and is a float-receiving chamber 5, in which the float 4 and the nozzle 10, in which the reed switch 5 is located, are located. In the upper part of the nozzle 10, an air outlet tube 9 with a non-return air valve 8 is inserted. The branching device 3 is connected to the pump 1 through the volute 2. The outlet of the volute 2 is connected to the check valve 7 through a rubber angle.

The snail 2, the pump 1 and the electronic control unit 6 during use can be closed with a cap (not shown in the figure) for protection from external influences.

This design has the smallest overall size, the cyclic operation of the pump is excluded, which reduces the noise of the pump, increases the inlet flow capacity from 15 to 25 liters per minute. The applicable reed switch 5 cannot get dirty, which greatly increases the pump's service life.

Also, a cooling system for water pump 1 with a cooler (fan) is used, which excludes the possibility of overheating of pump 1 and its further failure. Pump 1 is of the "Capsule" type, which uses a wet rotor, which makes the pump as safe as possible for humans.

The float-receiving chamber is located above the water level of the supply pipe and provides control of the water entering the pump.

The electronic control unit 6 used in this pump allows you to get rid of the remaining water to a dry state. For this, the electronic control unit 6 is programmed so that the pump 1 operates for 30 seconds (any time can be programmed) after stopping the liquid supply, thereby ensuring complete pumping out of the liquid.

Above the float-receiving chamber through an air outlet corrugated tube 9, an air check valve 8 is installed, which makes it possible to bleed the air lock from the system before starting, and as soon as the pump starts up, the air valve 8 closes, which allows creating a vacuum in the system, increasing productivity.

The use of an air outlet corrugated tube 9 made it possible to use a pump with reservoirs of a large volume of water.

The float-receiving chamber is a single plastic structure in the form of two cylinders. The lower part is straight, narrow, under the diameter of the float. The upper part is wide and is a fitting 10, with a tapered flat top and cut off side edges. In its upper part there are three holes for rubber cuffs. A plastic air outlet corrugated tube 9 is inserted into the cuff (with a diameter of 16 mm) 9. In the other two (with a diameter of 6 mm) there is a reed switch 5.

At the end of the air outlet corrugation of the tube 9, through a rubber adapter, an air check valve 8 is attached.

Let's consider an example of pump operation.

A liquid such as water flows through a supply pipe (not shown in the figure) connected to the branching device. At the same time, the air check valve 8 is triggered. The liquid enters the float-receiving chamber, the float magnet 4 touches the reed switch 5, pump 1 is switched on and the process of pumping out the liquid using pump 1. The pump 1 continues until the liquid is completely pumped out of the reservoir and continues another 30 seconds (this time is set in the computer), ensuring the complete removal of liquid residues from the pump elements.

This is a sewage pump of a new type, flow-through. It does not use a storage tank. The pumping out of the liquid is monitored continuously, until the pump 1 (motor) stops completely, and then the standby mode follows.

For optimal operation of the pump in the electronic control unit 6, a special circuit is used - an analogue of a digital countdown timer. The peculiarity of this scheme lies in its simplicity and reliability. From the voltage stabilizer L7805, through the resistor divider R1 and R2, and the reed switch, the starting pulse is fed to the inputs of the CD 4093 microcircuit (four logical elements "2I-NOT" with Schmitt triggers-inverter at the output), and from the output of the same microcircuit, invertible the signals are fed to the output of the ULN 2003A power microcircuit (a matrix of powerful Darlington transistors). From the power switches, the voltage output 12v goes to the power circuit (cooled fan), and from the output to the input of the optoelectronic switch of the electric magnetic pump.

The principle of operation of the circuit is as follows:

From the reed switch 5 voltage, about 5v, charges the capacitance C2 to the maximum value, and with the same voltage activates the input circuits of the CD 4093 microcircuit. The active state will last until the reed switch 5 opens, after the reed switch circuit breaks through R3, a gradual discharge C2 to a minimum value of approximately 1.8v. Due to the peculiarity of the CD 4093 microcircuit, the transition from the on state to the off state occurs instantly, which positively affects the operation of the remaining stages of the circuit.

Claims (1)

A pump that includes a water pump, a branching device connected to it through a volute, the upper part of which is made in the form of a float-receiving chamber with a float located in it and a fitting with a reed switch, which is controlled by an electronic control unit in automatic mode, and the pump includes a check valve , connected to the volute, and a non-return air valve, connected through a tube to the float-receiving chamber.

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