CN212903446U

CN212903446U - Liquid level sensor based on electrical tomography technology

Info

Publication number: CN212903446U
Application number: CN202022185182.8U
Authority: CN
Inventors: 李文宪; 王波
Original assignee: Shandong Aijie Photoelectric Technology Co ltd
Current assignee: Shandong Aijie Photoelectric Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-04-06
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a liquid level sensor based on electrical tomography, including device protective housing and data collection station, the top of device protective housing has seted up the top cap, the top of data collection station has seted up the threaded rod, the bottom of data collection station has seted up the second sealing washer, the top of data collection station is located the downside of threaded rod and has seted up the first sealing washer, the bottom of data collection station has seted up probe line, the bottom of probe line has seted up capacitive sensor; this practicality is through the device protective housing that sets up and assorted auxiliary structure thereof, can provide the structure of installation when providing protection architecture, can not only protect inboard data collection station, can provide moreover to holistic mounting structure, conveniently carry out the operation of installing.

Description

Liquid level sensor based on electrical tomography technology

Technical Field

The utility model relates to a level sensor field specifically is a level sensor based on electricity tomography.

Background

Electrical tomography includes ECT, ERT, EMT, EIT, in which ERT and ECT are commonly used, and capacitance tomography and resistance tomography are used, respectively.

Along with the continuous development of the technology, the liquid level sensor is also applied to the ECT technology and used for liquid level imaging, and the liquid level image distribution is obtained through the ECT data acquisition system and through the graphic operation of a computer, while the existing liquid level sensor based on the electrical tomography technology has certain use problems:

the existing liquid level sensor based on the electrical tomography technology is generally a simple cylindrical sensor, an additional auxiliary structure needs to be installed in practical application, and the installation and operation are inconvenient due to the fact that different adaptive structures need to be matched according to different positions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a level sensor based on electricity tomography to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a level sensor based on electricity tomography, includes device protective housing and data collection station, the top cap has been seted up at the top of device protective housing, the threaded rod has been seted up at data collection station's top, the second sealing washer has been seted up to data collection station's bottom, data collection station's top is located the downside of threaded rod and has seted up first sealing washer, probe line has been seted up to data collection station's bottom, capacitive sensor has been seted up to probe line's bottom.

Preferably, a plurality of electrode plates are arranged on the outer side of the capacitance sensor, the electrode plates are electrically connected with the electrode detecting wire, and the electrode plates are fixed through clamped insulating plates.

Preferably, the display module is arranged on the outer side of the data acquisition unit, and the wireless module and the storage module are further arranged in the data acquisition unit.

Preferably, the display module comprises a light emitting diode and an LED display screen, the wireless module is an integrated wireless chip, and the storage module is an integrated storage chip.

Preferably, the middle part of the protective shell of the device is provided with a notch matched with the threaded rod, and the capacitance sensor is in threaded connection with the protective shell of the device through the threaded rod.

Preferably, the outer side and the bottom of the capacitance sensor are also provided with shielding layers.

Compared with the prior art, the beneficial effects of the utility model are that:

through the device protective housing that sets up and assorted auxiliary structure thereof, can be when providing protection architecture, provide the structure of installation, can not only protect inboard data collection station, and can provide to holistic mounting structure, conveniently install the operation, in addition through probe line and assorted auxiliary structure who sets up, can adopt traditional electric capacity sensor structure when using, provide the electric capacity calculation mode of height, combine traditional capacitanc level sensor structure and current level sensor structure based on ECT technique, the computer calculation power to the high calculation of liquid level has been reduced, holistic work efficiency has been improved, have more the practicality than current structure.

Drawings

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

fig. 2 is a schematic structural diagram of the capacitive sensor of the present invention;

fig. 3 is the structure diagram of the data collector of the present invention.

In the figure: 10-device protective housing; 11-a top cover; 12-a first sealing ring; 13-a data collector; 131-a threaded rod; 132-a display module; 133-a second seal ring; 14-probe line; 15-a capacitive sensor; 151-electrode sheet; 152-an insulating plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a liquid level sensor based on an electrical tomography technology includes a device protection shell 10 and a data collector 13, a top cover 11 is disposed on the top of the device protection shell 10, a threaded rod 131 is disposed on the top of the data collector 13, a second sealing ring 133 is disposed on the bottom of the data collector 13, a first sealing ring 12 is disposed on the top of the data collector 13 and located on the lower side of the threaded rod 131, a probe line 14 is disposed on the bottom of the data collector 13, and a capacitance sensor 15 is disposed on the bottom of the probe line 14.

The liquid level detection device is characterized in that a plurality of electrode plates 151 are arranged on the outer side of the capacitance sensor 15, the electrode plates 151 are electrically connected with the electrode detection line 14, the electrode plates 151 are fixed through clamped insulating plates 152, the electrode detection line 14 is connected with the capacitance sensor 15, the liquid level height can be calculated through an additionally installed transmitter according to the change condition of capacitance when the liquid level rises, the structure of the liquid level detection device is combined with an ECT imaging technology, liquid level distribution is imaged through ECT, and the liquid level height is calculated through the electrode detection line 14 and the transmitter, so that the liquid level detection device is simple in structure, and can avoid occupying too much computer resources; the display module 132 is arranged on the outer side of the data acquisition unit 13, the wireless module and the storage module are also arranged in the data acquisition unit 13, the data acquisition unit 13 is a data acquisition system based on the ECT imaging technology and comprises a PCB, a memory integrated with the PCB, a control chip and a wireless chip, and the data is transmitted to the computer control terminal through the wireless chip for graphic operation; the display module 132 comprises a light emitting diode and an LED display screen, the wireless module is an integrated wireless chip, the storage module is an integrated storage chip, the LED display screen displays various data, and the light emitting diode displays the liquid level height, so that the liquid level height is convenient to watch; the middle part of the device protection shell 10 is provided with a notch matched with the threaded rod 131, the capacitive sensor 15 is in threaded connection with the device protection shell 10 through the threaded rod 131, and an external protection structure can be directly connected with an external structure through the threaded notch formed in the upper end of the top cover 11; and shielding layers are further arranged on the outer side and the bottom of the capacitance sensor 15.

The working principle is as follows: when the device is used, the top cover 11 is firstly connected with a corresponding fixed structure, in addition, when the liquid level needs to be detected, the probe line 14 needs to be connected with a transmitter, the capacitance sensor 15 is vertically downward, when the liquid level is immersed in the capacitance sensor 15, an electric signal is transmitted through the electrode slice 151, the internal capacitance changes, the higher the liquid level is, the higher the capacitance is, the real-time height of the liquid level is calculated through the transmitter according to the change of the capacitance, when the early warning height occurs, the alarm is given through a buzzer arranged in the device protection shell 10, in the process, the data collector 13 transmits data information through a wireless module all the time, the computer control terminal receives the information and performs graphic operation to obtain the graphic distribution of the liquid level, in the use process, the liquid level height and various data information are displayed through the display module 132 all the time, various information calculated through the computer control terminal can be returned to, show through the LED display screen, data collection station 13 can't set up, only possesses the display effect, need carry out the setting of data through computer control terminal, like the early warning height of liquid level and according to different quality of water modification calculation data.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a level sensor based on electricity tomography, includes device protective housing (10) and data collection station (13), top cap (11), its characterized in that have been seted up to the top of device protective housing (10): threaded rod (131) have been seted up at the top of data collection station (13), second sealing washer (133) have been seted up to the bottom of data collection station (13), first sealing washer (12) have been seted up to the downside that the top of data collection station (13) is located threaded rod (131), probe line (14) have been seted up to the bottom of data collection station (13), capacitive sensor (15) have been seted up to the bottom of probe line (14).

2. A liquid level sensor based on electrical tomography as claimed in claim 1, wherein: a plurality of electrode slices (151) are arranged on the outer side of the capacitive sensor (15), the electrode slices (151) are electrically connected with the probe lines (14), and the electrode slices (151) are fixed through clamping insulation plates (152).

3. A liquid level sensor based on electrical tomography as claimed in claim 1, wherein: the display module (132) is arranged on the outer side of the data acquisition unit (13), and the wireless module and the storage module are further arranged in the data acquisition unit (13).

4. A liquid level sensor based on electrical tomography as claimed in claim 3, wherein: the display module (132) comprises a light emitting diode and an LED display screen, the wireless module is an integrated wireless chip, and the storage module is an integrated storage chip.

5. A liquid level sensor based on electrical tomography as claimed in claim 1, wherein: the middle part of the device protective shell (10) is provided with a notch matched with the threaded rod (131), and the capacitance sensor (15) is in threaded connection with the device protective shell (10) through the threaded rod (131).

6. A liquid level sensor based on electrical tomography as claimed in claim 1, wherein: and shielding layers are further arranged on the outer side and the bottom of the capacitance sensor (15).