CN213180241U

CN213180241U - Liquid-liquid layered interface measuring device

Info

Publication number: CN213180241U
Application number: CN202021802349.4U
Authority: CN
Inventors: 梁建国; 王佳柳; 范志鹏; 刘鹏伟; 张伟燕
Original assignee: Hebei Yanuo Biological Technology Co ltd
Current assignee: Hebei Yanuo Biological Technology Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-11
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a liquid-liquid layered interface measuring device, which comprises a cylinder, a communicating pipe, a magnetic floater and a magnetic turning indicator board; the cylinder is vertically arranged outside the tested container; the two communicating pipes are used for respectively communicating the upper part and the lower part of the cylinder with the container to be tested; one of the communicating pipes is communicated with the floccule layer of the liquid in the tested container, and the other communicating pipe is communicated with the light phase layer or the heavy phase layer of the liquid in the tested container; a magnetic floater is arranged in the cylinder body and floats at the junction of the floccule layer and the light phase layer or the floccule layer and the heavy phase layer; the magnetic turning indicator board is arranged outside the cylinder and matched with the magnetic floater. The measuring device solves the problem that a glass visual cup or a glass delayer needs to be judged by naked eyes, and solves the problem of measurement distortion; the liquid-liquid layered interface position can be accurately and conveniently displayed by utilizing the buoyancy principle, and the liquid-liquid layered interface position display device has the advantages of convenience in use, accuracy in measurement, economy and practicability.

Description

Liquid-liquid layered interface measuring device

Technical Field

The utility model relates to a measure liquid level device, especially a measuring device at liquid-liquid layering interface.

Background

In unit operations such as extraction in fine chemical production, liquid-liquid phase layering is often involved. Traditional intermittent operation adopts transparent material like glass sight cup or glass delayer, and customs visual observation confirms the layering interface, and this operation is too strong to the dependence of people, and can not the teletransmission, is not convenient for realize automatic serialization operation, and easy misoperation appears.

In recent years, an interface meter for determining the position of an interface by measuring the conductivity of a liquid-liquid two-phase has also appeared, which can realize remote transmission of signals and can be theoretically used for continuous and automatic interface measurement. However, as is well known to those skilled in the chemical arts, in the case of layering, there is an intermediate layer of the mixture between the liquid-liquid phases, commonly referred to as the "floe" layer; the flocculent layer has the components of the upper layer liquid and the lower layer liquid, and the inner part is relatively uniform; the conductivity of the "flock" is close to or even equal to the liquid phase with the highest conductivity, which results in the determination of the "flock" layer as the phase with the highest conductivity, which distorts the measurement by the interfacial meter; further causing the loss of another phase of liquid in the layering operation and the impurity of the phase with large conductivity, greatly influencing the layering effect and causing great economic loss. And the floccule layer is often of relatively high viscosity and is easily adhered to the probe of the interfacial meter, which further causes errors in measurement results.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a measuring device at accurate liquid-liquid layering interface is measured at interface.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the magnetic float comprises a cylinder, a communicating pipe, a magnetic float and a magnetic turning indicator board; the cylinder is vertically arranged outside the tested container; the two communicating pipes are used for respectively communicating the upper part and the lower part of the cylinder with the container to be tested; one of the communicating pipes is communicated with the floccule layer of the liquid in the tested container, and the other communicating pipe is communicated with the light phase layer or the heavy phase layer of the liquid in the tested container; the magnetic float is arranged in the cylinder, and the magnetic turn indicator plate is arranged outside the cylinder and matched with the magnetic float.

The magnetic floater of the utility model is composed of a floater body and a permanent magnetic sheet; the float body is matched with the inner diameter of the cylinder body, and the permanent magnet sheets are integrally arranged in the float body.

The measured container of the utility model is provided with two measuring devices; the communicating pipe of one measuring device is communicated with the light phase layer of the liquid in the measured container, and the communicating pipe of the other measuring device is communicated with the heavy phase layer of the liquid in the measured container.

The indicator board is turned over to magnetism is equipped with signal teletransmission device.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the magnetic floater floats at the boundary of the liquid, and the boundary liquid level of the liquid is effectively indicated through the magnetic floater and the magnetic turning indicating plate; the problem that a glass visual cup or a glass delayer needs to be judged by naked eyes is well solved, and the problem that a conductivity interface meter misjudges a flocculent layer to be a phase with high conductivity and is easy to be adhered and wrapped, so that measurement distortion is caused is well solved. The utility model discloses utilize buoyancy principle can be accurate, convenient demonstration liquid-liquid layering interface position, have convenient to use, measure accurate, economical and practical's advantage.

The utility model discloses when setting up two measuring device, can be accurate measurement light phase layer respectively and the boundary interface on flocculent layer to and the boundary interface on flocculent layer and heavy phase layer, thereby provide more accurate, more audio-visual data for operating equipment and operating personnel, thereby the layering operation effect of effectual promotion liquid-liquid phase.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged schematic view of section A of FIG. 1;

fig. 3 is a front view of the magnetic float of the present invention;

fig. 4 is a plan view of the magnetic float of the present invention.

In the figure: 1-light phase layer; 2-a flocculent layer; 3-upper communicating pipe; 4-a cylinder body; 5-a signal remote transmission device; 6-a magnetic float; 7-lower communicating pipe; 8-heavy phase layer; 9-a container to be tested; 10-magnetic flip indicator board; 11-a float body; 12-permanent magnetic sheet.

Detailed Description

As shown in fig. 1, the measuring device for the liquid-liquid layered interface comprises a cylinder body 4; the cylinder body 4 is a cylinder structure with an upper closed end and a lower closed end, and is preferably a cylinder; the cylinder 4 is vertically arranged outside the tested container 9. The cylinder 4 is communicated with the tested container 9 through a communicating pipe; the number of the communicating pipes is two, namely an upper communicating pipe 3 and a lower communicating pipe 7; wherein, the upper part of the cylinder 3 is communicated with the tested container 9 through an upper communicating pipe 3, and the lower part of the cylinder 3 is communicated with the tested container 9 through a lower communicating pipe 7. When the measuring device is used for measuring the boundary interface between the heavy phase layer 8 of the liquid in the measured container 9 and the floccule layer 2, the upper communicating pipe 3 is communicated with the position of the floccule layer 2 of the measured container, and the lower communicating pipe 7 is communicated with the position of the heavy phase layer 8 of the measured container. When the measuring device is used for measuring the boundary interface between the floccule layer 2 and the light phase layer 1 of the liquid in the measured container 9, the upper communicating pipe 3 is communicated with the position of the light phase layer 1 of the measured container, and the lower communicating pipe 7 is communicated with the position of the floccule layer 2 of the measured container. By adopting the structure, the boundary interface to be measured is positioned between the upper communicating pipe 3 and the lower communicating pipe 7, the boundary interface of the liquid flowing into the cylinder 4 is consistent with the boundary interface of the liquid in the tested container 9, and the boundary interface of the liquid in the tested container 9 can be obtained by measuring the boundary interface of the liquid in the tested cylinder 4.

As shown in figure 1, the measuring device for the liquid-liquid layered interface is characterized in that a magnetic floater 6 is arranged in a cylinder 4, and the magnetic floater 6 floats between layered liquids in the cylinder 4 and can ascend and descend along with the ascending and descending of the liquid interface in the cylinder 4. As shown in fig. 3 and 4, the magnetic floater 6 is composed of a floater body 11 and a permanent magnet sheet 12; the float body 11 is matched with the inner diameter of the cylinder 4, and stainless steel, PP or PTFE polytetrafluoroethylene series and other corrosion-resistant materials can be adopted according to the corrosion characteristics of liquid substances. The permanent magnet pieces 12 are sheet-shaped, and preferably adopt rare earth permanent magnet alloy; the permanent magnet pieces 12 are integrally arranged in the float body 11; when the magnetic floater 6 floats in the cylinder, the permanent magnetic sheets 6 are horizontally arranged, and the permanent magnetic sheets 6 are positioned at the boundary interface. The float body 11 may be a hollow structure or a solid structure, and is determined according to the material and the required buoyancy, and the apparent density ρ of the magnetic float 6 is the arithmetic average of the density of the two-phase liquid layered at the interface/the total volume of the magnetic float. After the structure is adopted, the magnetic floater 6 can always float between the layered liquid in the cylinder 4, and the permanent magnetic sheets 12 are just positioned at the boundary interface.

As shown in fig. 1 and 2, the measuring device for the liquid-liquid layered interface is provided with a magnetic flipping indicating plate 10 outside the cylinder 4, and the magnetic flipping indicating plate 10 is provided with a magnetic color block; the magnetic colour block is back-coated with a colour, for example red. The magnetic turning indicating plate 10 is matched with the magnetic floater 6, the magnetic color blocks are turned to expose colors under the action of the magnetic force of the permanent magnetic sheets 12, so that the positions of the permanent magnetic sheets 12 are indicated, and the positions of boundary interfaces in the measured container 9 are obtained.

As shown in fig. 1, the measuring device for liquid-liquid layered interface is provided with a signal remote transmission device 5, which can be a static pressure type liquid level transmitter or a dry spring-resistance type liquid level transmitter to convert the boundary signal into a two-wire standard signal for remote indication, detection, recording and control.

In fig. 1, two measuring devices for liquid-liquid layer interface are arranged on a container 9 to be measured. The upper communicating pipe 3 of one measuring device is communicated with the position of the floccule layer 2 of the measured container, and the lower communicating pipe 7 is communicated with the position of the heavy phase layer 8 of the measured container and is used for measuring the boundary interface between the heavy phase layer 8 of the liquid in the measured container 9 and the floccule layer 2; and the upper communicating pipe 3 is communicated with the position of the light phase layer 1 of the tested container, and the lower communicating pipe 7 is communicated with the position of the floccule layer 2 of the tested container and is used for measuring the boundary interface between the floccule layer 2 of the liquid in the tested container 9 and the light phase layer 1. Therefore, the positions of two layered interfaces can be measured simultaneously by matching the two measuring devices, and more visual and accurate data can be provided for operators.

As shown in fig. 1, the working principle of the measuring device for the liquid-liquid layered interface is as follows: the communicating pipe is communicated with the liquid to be detected, and the liquid to be detected enters the cylinder body 4 and is consistent with the inner interface of the container 9 to be detected. Due to the proper density arrangement of the magnetic floater 6, the magnetic floater 6 floats at the liquid-liquid layered interface in the cylinder, and the permanent magnetic sheets 12 are just at the boundary interface. The magnetic force of the permanent magnet pieces 12 in the magnetic floater acts on the magnetic color blocks of the magnetic turning indicating plate 10, and the magnetic color blocks turn to expose colors, so that the positions of the permanent magnet pieces 12 are indicated, and the positions of boundary interfaces in the measured container 9 are further indicated; and simultaneously, the signal is acted on the signal remote transmission device 5 to output a remote transmission signal.

Claims

1. A measuring device for a liquid-liquid layered interface, characterized in that: the magnetic float comprises a cylinder (4), a communicating pipe, a magnetic float (6) and a magnetic turn indicator plate (10); the cylinder (4) is vertically arranged outside the tested container (9); the two communicating pipes are used for respectively communicating the upper part and the lower part of the cylinder body (4) with the container (9) to be detected; one of the communicating pipes is communicated with the floccule layer (2) of the liquid in the tested container, and the other communicating pipe is communicated with the light phase layer (1) or the heavy phase layer (8) of the liquid in the tested container; a magnetic floater (6) is arranged in the cylinder body (4), and the magnetic floater (6) floats at the junction of the floccule layer and the light phase layer or the floccule layer and the heavy phase layer; the magnetic turning indicating plate (10) is arranged outside the cylinder body and is matched with the magnetic floater (6).

2. A liquid-liquid layered interface measuring device according to claim 1, characterized in that: the magnetic floater (6) is composed of a floater body (11) and a permanent magnetic sheet (12); the floater (11) is matched with the inner diameter of the cylinder, and the permanent magnet sheets (12) are integrally arranged in the floater.

3. A liquid-liquid layered interface measuring device according to claim 1, characterized in that: the measured container (9) is provided with two measuring devices; the communicating pipe of one measuring device is communicated with the light phase layer (1) of the liquid in the measured container, and the communicating pipe of the other measuring device is communicated with the heavy phase layer (8) of the liquid in the measured container.

4. A liquid-liquid layered interface measuring device according to claim 1, 2 or 3, characterized in that: the magnetic turning indicator board (10) is provided with a signal remote transmission device (5).