CN206387470U

CN206387470U - Liquid level emasuring device

Info

Publication number: CN206387470U
Application number: CN201621118762.2U
Authority: CN
Inventors: 张勇; 楚学娟; 楚学伟
Original assignee: Jilin Normal University
Current assignee: Jilin Normal University
Priority date: 2016-10-13
Filing date: 2016-10-13
Publication date: 2017-08-08
Anticipated expiration: 2026-10-13

Abstract

The utility model discloses a kind of liquid level emasuring device, device is vertically put into the container of fluid to be measured, when barrel contacts below device are to container bottom, solid bar in sleeve changes simultaneously to the active force of pressure sensor, variable signal that pressure sensor obtains and liquid level can be conversed according to Archimedes principle and there is set formula relation, data processing and display module will the conversion of this signal calculate after be output to display screen and can intuitively obtain level value.Dismountable junction button is designed in device and protects pressure sensor, outside is co-axially mounted the bigger sleeve of dismountable radius to reduce the influence of injection liquid or liquid sloshing to solid bar buoyancy.The solid bar and sleeve material and big I used in device described in the utility model is chosen and changed according to the type and container size of fluid to be measured, and compatibility is strong, has a wide range of application, and device therefor small volume, low cost, and measurement accuracy is high.

Description

Liquid level emasuring device

Technical field

The utility model is related to field of measuring technique, specifically a kind of liquid level emasuring device.

Background technology

Liquid level refers to the height of the liquid level of liquid medium in a reservoir.In the industrial production, liquid level is one critically important Parameter, liquid measure has critical role in the industrial production, safety having or even directly influencing production.Liquid level gauge is to survey Measure liquid level instrument, in actual mechanical process, the requirement to level gauging is more and more, should according to the requirement of different aspect come From different types of liquid level gauge.

In industrial circle, liquid level is measured, in addition to the static pressure level gauging of called putting-into-type liquid level meter, also Floating Ball Liquid Level Measurement apparatus, magnetic turnover panel liquid level method, radar method, supercritical ultrasonics technology, bubble method etc..The measurement accuracy that these devices have is low, and very Many all have a higher requirement to container shapes structure and material, radar and ultrasonic unit is more complicated on erecting device and peace Fill volume ratio larger；Need to ensure sensor in terms of the device regular job and maintenance of capacitance level transducer measurement liquid level Watertight and the electrode dielectric layer that collides with is prevented, the fluid to be measured that some dielectric constants often change can not be measured, most of measurements Device is limited by fluid to be measured performance and container shapes, to overcome above-mentioned technical deficiency, it is proposed that a kind of accommodation Extensively, liquid level emasuring device easy to use.

The content of the invention

The purpose of this utility model is to provide for a kind of liquid level emasuring device, and which solves the disadvantage of existing e measurement technology End, compatibility is strong, accuracy is high, can be widely used.

The technical solution of the utility model is：

Liquid level emasuring device, including pressure sensor, data processing and display module, shell, junction button, solid bar, set Provided with the pressure sensor and data processing and display module being connected by data wire, pressure sensor in cylinder, the shell Lower end connects junction button, and the sleeve is enclosed on outside solid bar, and sleeve bottom end is provided with the hole passed in and out for fluid to be measured, the set It is detachably connected between cylinder and shell, junction button is connected through a screw thread with solid bar upper end.

The beneficial effects of the utility model are：

The present apparatus is applied to measure polytype liquid, and does not limit the shape of container, the reality goed deep into fluid to be measured Axle and sleeve material and big I are adjusted according to actual requirement.It is compatible strong, have a wide range of application, and device therefor low cost, Measurement accuracy is high.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model device.

Fig. 2 is junction button example schematic between pressure sensor and solid bar.

Fig. 3 is solid bar example shape schematic diagram.

1-pressure sensor, 2-junction button, 3-solid bar, 4-sleeve, 5-data processing and display module, 6-outer Shell.

Embodiment

Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.Fig. 1 is the utility model level gauging Apparatus structure schematic diagram.As shown in figure 1, the utility model liquid level emasuring device include pressure sensor, junction button, solid bar, Provided with the pressure sensor and data processing and display mould being connected in sleeve, data processing and display module, shell, shell Block.

As shown in the figure：Suitable solid bar and sleeve is chosen according to the property of fluid to be measured and the size of container, it is desirable to real Axle density is more than fluid to be measured, and to ensure that it is downward with joint efforts that solid bar is subject in fluid to be measured, solid bar is cylinder, directly Footpath is general in 8-12mm or so, and sleeve is enclosed on outside solid bar, interior hollow-cylindrical, 5 ~ 10mm bigger than solid bar diameter, sleeve bottom End is provided with the hole passed in and out for fluid to be measured（2 ~ 5mm of diameter）, solid bar and sleeve are all higher than the container of fluid to be measured, solid bar Bottom is higher by 2 ~ 5mm than sleeve bottom end；In order to protect devised in the pressure sensor of upper end, device dismountable solid bar with Sleeve, solid bar and pressure sensor connect through a junction button, as shown in Figure 2 and Figure 3, and junction button can be using in irony Thread forms, solid bar upper end uses external screw thread mode, is easy to the junction button dismounting with internal thread and is connected；Sleeve and shell Connection can use screw thread or snap；Pressure sensor is strip device, and both sides carry mounting hole, during installation side with Shell is fixed, and opposite side is fixed with junction button, as shown in Figure 1；Data processing and display module include AD converter, monolithic movement Piece, the part of digital display screen three, three are connected with data wire as shown in Figure 1, and AD processors are existing digital-to-analogue conversion on the market Element, singlechip chip is converted the data signal after processing, is inside designed with fixed calculation formula, finally that result is defeated Go out to display screen.Three parts in data processing and display module are each attached in shell.

The solid bar and sleeve of the utility model device are respectively mounted（For protection pressure sensor, device is being used Finishing unload lower sleeve and solid bar）, device is put into container vertically, sleeve bottom end touches container bottom can be from display Reading numerical values on screen.When injecting fluid to be measured in container or there is liquid height more than 5mm, liquid passes through container bottom sleeve Hole enters in sleeve, the height of injection liquid in container（Liquid level）With entering the highly consistent of liquid in sleeve, according to A Ji Mead principle, the buoyancy size that the object being immersed in liquid is subject to is equal to the gravity of the liquid arranged by the object, solid bar After matter and size are fixed, solid bar is proportional to the height of fluid to be measured by the buoyancy of fluid to be measured, and solid bar is to pressure sensing The power for the change that device is produced is the unique variable for obtaining fluid to be measured level value, and this variable signal is transferred to by pressure sensor Data processing and display module, the liquid level of fluid to be measured can be accurately obtained by conversion and calculating.

When being measured to common liq such as water etc., solid bar can take the low rod iron of cost, sleeve using plastics or Glass material, can use acidproof and exotic material when being measured to acidic liquid or high-temp liquid.

Although describing liquid level emasuring device of the present utility model above in conjunction with exemplary embodiment, however, this area is general It is logical it is to be understood by the skilled artisans that above-mentioned related embodiment is to explain relative theory of the present utility model, protect and apply model The connection for enclosing the junction button designed in the statement for being not limited to above-described embodiment, device and sleeve and shell also can be according to actual need Change, in the case where not departing from protective scope of the claims, various changes can be carried out to above-mentioned example embodiment.

Claims

1. a kind of liquid level emasuring device, it is characterised in that：Including pressure sensor, data processing and display module, shell, connection Provided with the pressure sensor and data processing and display mould being connected by data wire in button, solid bar, sleeve, the shell Block, pressure sensor lower end connection junction button, the sleeve is enclosed on outside solid bar, and sleeve bottom end is provided with for fluid to be measured turnover Hole, be detachably connected between the sleeve and shell, junction button is connected through a screw thread with solid bar upper end.

2. a kind of liquid level emasuring device according to claim 1, it is characterised in that：The material of the solid bar compares test solution The density of body is big, cylinder, a diameter of 8-12mm.

3. a kind of liquid level emasuring device according to claim 1, it is characterised in that：The sleeve is interior hollow-cylindrical, than Big 5 ~ the 10mm of solid bar diameter, solid bar bottom is higher by 2 ~ 5mm than sleeve bottom end.

4. a kind of liquid level emasuring device according to claim 1, it is characterised in that：The pressure sensor uses favour stone Bridge design, sensitivity is in ± 1mm.

5. a kind of liquid level emasuring device according to claim 1, it is characterised in that：The data processing and display module bag AD converter, singlechip chip, the part of digital display screen three are included, three is connected with data wire, passed for receiving simultaneously processing pressure The variable signal that sensor is produced.