SU1416750A1 - Positive-displacement pump - Google Patents

Abstract

Invention m. used for pumping slurry-containing liquids and improves pump reliability. A bellows 5 with a lid 6, made in the form of a permanent magnet, is installed in the housing 1. The lid 6 forms an internal cavity 9 with the bottom 8 of the bellows. The cavity is communicated by the pipeline I2 with the diaphragm 13 installed in it with the atmosphere. The working chamber (RC) 2 is formed between the shtyfton and the housing, and in the bottom there are inclined channels along the perimeter with check valves installed in them. The axis of the channels are located at an angle of 30-60 to the bottom surface. The bellows interacts with an electromagnetic actuator 7 located at its bottom. With the reduction of the bellows, air is squeezed out of the cavity through the channels in the Republic of Kazakhstan, where it agitates the sediment settled at the bottom of the particles that have dropped out of the pumped liquid. When switching the polarity of the drive, SILPHON increases its size, is displaced from the RK pumped liquid with sediment, which prevents silting of the RK. 3 hp f-ly, 2 ill. (L

Description

Od

C71

11416750

The invention relates to pump construction, relates to volumetric pumps and can be used in various sectors of the national economy, mainly for pumping suspended liquids.

The aim of the invention is to increase reliability when pumping suspension-containing liquids, JQ

FIG. 1 shows a schematic diagram of the pump; in fig. 2 - a fragment of its bottom.

The pump includes a housing 1, in which

With the formation of the working chamber 2c, distribution valves 3 and 4, suction and discharge, respectively, a bellows 5 with a cr, a plug 6, interacting with an electromagnetic actuator 7 and forming an internal cavity 9 with the bottom 8, are installed. The pump has an electrical control unit 10 with a bellows position control 11 5, the electromagnetic actuator 7 is connected to the IO unit. The inner cavity 9 of the bellows 5 is connected by a pipe 12 with the diaphragm 13 installed in it with the atmosphere. The working chamber 2 is formed between the bellows 5 and the housing 1, and in d 8 ische bellows 5 vsholneny perimeter inclined channels 14 defined therein check valve 15. The electromagnetic actuator 7 is situated in the bottom 8 of the bellows 5 ,. The axes of the inclined channels 14 are located at an angle of 30-60 to the bottom surface, 8 of the bellows 5. The electric control unit 10 is connected to the power supply 16, the cover 6 of the bellows 5 is made in a permanent magnet.

When powering the electromagnetic actuator 7 from the power supply 16 via the control unit 10, the cap 6 of the bellows 5 is attracted to the actuator 7 and the bellows 5 is reduced, increasing the volume of the working chamber 2 into which fluid is pumped through the valve 3. At the same time, from the cavity 9 of the bellows 5, compressed air is blown through inclined channels 14 through the check valves 15 which open at the same time. Compressed air is blown up and sediment settled at the bottom of the working chamber 2 from the particles dropped out of the pumped liquid. The exit of air into the atmosphere through pipeline 12 is limited by the resistance of the diaphragm 13, as well as by the fact that in the intake stroke between the cavity 9 and the chamber 2 a pressure differential occurs greater than between the cavity 9 and the atmosphere. At the end of the bellows stroke 5, the position control sensor 11 sends a signal to the control unit 10 to switch the polarity of the power supply of the electromagnetic actuator 7. The direction of the magnetic field of the actuator 7 changes and the cap 6 begins to repel. The bellows 5 is enlarged in size, reducing the volume of the working chamber 2 and displacing the pumped liquid with turbulent sediment through the valve 4 to the consumer. In the inner cavity 9 of the bellows 5 is sucked from the atmosphere through the diaphragm I3 through the air line 12 (valves 15 while closed)

At the end of the bellows 5 upward movement, the sensor 1 controlling the position of the bellows 5 again issues a signal to the unit 10 for switching the power supply polarity of the actuator 7, and the bottom 6 begins to be attracted to the electromagnetic actuator 7. Then the cycle repeats.

Vschuchivanie provides. The sediment from the chamber 2 and prevents its jamming, which increases the reliability of the pump.

Claims (3)

Invention Formula 1, A volumetric pump comprising a housing in which, with the formation of a working chamber with distribution valves, there is a bellows with a key, interacting with an electromagnetic drive and forming an internal cavity with the bottom, and an electrical control unit with a sensor controlling the position of the bellows to which the electromagnetic drive is connected, differing the fact that, in order to increase reliability when pumping suspended liquids, the inner cavity of the bellows is connected by a pipeline with a diaphragm with an atm installed in it area, the working chamber is formed between the bellows and the housing, and in the bottom of the bellows on the perimeter vsholneny inclined channels with installed check valves. 2. Pump according to Claim 1, characterized in that the electromagnetic actuator is located at the bottom of the bellows. 3I4J6750 3. Pump on PP. 1 and 2, on tl i- 4: Pump on PP. 1-3, about tl and h ay u and with the fact that the bellows due to the fact that the axes are naku and u and the fact that the bellows Channel channels are located at an angle, made in the form of a constant mag- nous 30–60 k of the bottom surface of the bellows. g nita. 4: Pump on PP. 1-3, about tl and h ay u and with the fact that the bellows N / Phage: 2