CN101850219A - A continuous flow self-regulating dosing device - Google Patents

Abstract

The invention provides a continuous flow self-regulating dosing device. Its composition includes a housing, an inner piston, a water inlet pipe, and a water outlet pipe. The housing is provided with two dosing ports, two off-position switches and two three-way solenoid valves. The inner piston is arranged in the housing and is precisely connected to the housing. The housing is divided into left and right chambers, and the inner piston can slide freely in the housing, but the sealing performance of the left and right chambers is good, and the liquid will not flow together. The position loss switch adopts touch control and controls two three-way solenoid valves. There are two kinds of connecting pipelines, and the dosing port is also controlled by the position switch to add medicine to the chamber. The invented water inlet and outlet can be dynamically adjusted, and the dosing concentration of the outlet water is consistent.

Description

A continuous flow self-regulating dosing device

technical field

The present invention relates to a liquid mixing device, in particular to a continuous flow self-regulating filler.

Background technique

The dosing device has always been a necessity in the biological and medical fields, especially the two-phase anaerobic fermentation technology of biological anaerobic fermentation. During the operation of the reactor, dosing is required. The first phase of the reactor is unstable, and the product Methane is very demanding relative to influent water. However, the existing dosing devices all directly add medicine to the fluid, so that the mixed effect of the fluid after dosing will be very different at different times, which will have a great impact on experiments or medical treatment; in addition, the existing The automatic timing dosing device will have a large dosing error for fluids with small or unstable flow rates, and the equipment is complicated and difficult to promote and maintain.

Contents of the invention

The purpose of the present invention is to provide a self-regulating continuous flow self-regulating dosing device which can realize equal inflow and outflow water flow rates and uniform dosing.

The purpose of the present invention is achieved like this:

Its composition includes a housing, an inner piston, a water inlet pipe, and a water outlet pipe. The housing is provided with two dosing ports, two off-position switches and two three-way solenoid valves. The inner piston is arranged in the housing and is precisely connected to the housing. The housing is divided into left and right chambers, and the inner piston can slide freely in the housing, but the sealing performance of the left and right chambers is good, and the liquid will not flow together. The position loss switch adopts touch control and controls two three-way solenoid valves. There are two kinds of connected pipelines, and the dosing port is also controlled by the position switch to add medicine to the chamber.

In order to solve the problems in the prior art, the present invention designs a continuous flow self-regulating dosing device. It is mainly composed of a shell, an inner piston, a dosing port, a position loss switch and two three-way solenoid valves. The shell and the inner piston are made of stainless steel, the dosing port and the position loss switch are fully covered by high-quality plastic, the pipeline passage of the three-way solenoid valve is made of plastic material, the inner piston is precisely matched with the shell, and the inner piston can It slides freely in the shell, but the sealing of the left and right chambers is good, and the liquid will not flow in series. The position loss switch adopts touch control, which can control the two connection lines of the two three-way solenoid valves, and the dosing port is used for dosing. The quantifier is also controlled by the position loss switch to add medicine to the chamber. The whole dosing device can be self-adjusted to achieve equal water flow in and out, and uniform dosing.

Description of drawings

Accompanying drawing is the structural representation of the present invention.

Detailed ways

The present invention is described in more detail below in conjunction with accompanying drawing example:

The composition of the continuous flow self-regulating dosing device of the present invention includes a housing 9, an inner piston 7, a left water inlet pipe 11, a right water inlet pipe 12, a left water outlet pipe 21, and a right water outlet pipe 22. The housing is provided with a left dosing port. 51. Right dosing port 52, left off switch 61, right off switch 62 and two three-way solenoid valves. The inner piston is set in the casing and is precisely matched with the casing to divide the casing into two left and right chambers. The piston can slide freely in the shell, but the sealing performance of the left and right chambers is good, and the liquid will not flow in series. The medicine is also controlled by the position switch to add medicine to the chamber.

The working process of the present invention is: the fluid enters from the main inlet 1, assuming that the piston 7 is moving from left to right, the upper port 41 of the left solenoid valve is opened, the lower port 42 is closed, the upper port 31 of the right solenoid valve is closed, and the lower port 32 is opened , since the left chamber 81 communicates with the water inlet pipe 11, the pressure of the left chamber 81 is greater than that of the right chamber 82, and the piston 7 moves to the right at a corresponding speed according to the size of the water inlet flow, and the water outlet 2 is equal to the water inlet. 1 flows out at the same flow rate, when the piston 7 hits the right switch 62, the upper port 41 of the left solenoid valve is closed, the lower port 42 is opened, the upper port 31 of the right solenoid valve is opened, the lower port 32 is closed, and the dosing device 51 dosing to the left chamber 81 to make it fully mix with the water inlet, the piston 7 starts to move from right to left, now the water inlet enters from the right water inlet pipe 12, and the outlet water comes out from the left water outlet pipe 21. Due to the design of the invention, the water in and out can be dynamically adjusted, and the dosing concentration of the water out is consistent.

Claims (1)

1. continuous flow self-adjusting dosing device, its composition comprises housing, inner carrier, water inlet pipe, outlet pipe, housing is provided with two dosing mouths, two position deactivation switches and two three-way magnetic valves, it is characterized in that: two chambers about inner carrier is arranged at and in the housing and with the housing precision-fit housing is divided into, inner carrier can be free to slide in housing, but the sealing of left and right sides chamber is good, the liquid that can not crossfire, the position deactivation switch adopts some touch-control system, connect pipeline for two kinds of two three-way magnetic valves of control, the dosing mouth dosing is also by the dosing in chamber of position deactivation switch control batcher.

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