CN210922778U

CN210922778U - Electrical liquid level detection device for perfusion apparatus based on wireless communication foundation

Info

Publication number: CN210922778U
Application number: CN201921702514.6U
Authority: CN
Inventors: 刘孝松; 蔡东宁
Original assignee: Swire Coca Cola Beverages Jiangsu Ltd
Current assignee: Swire Coca Cola Beverages Jiangsu Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-07-03
Anticipated expiration: 2029-10-12

Abstract

The utility model relates to a filling machine electric liquid level detection device based on wireless communication basis, including the load-bearing base, mounting flange, the guide bar, the magnetism floater, the magnetostrictive level meter, wireless data transmission device and control circuit, the load-bearing base is connected with the mounting flange up end, the terminal surface is connected under the guide bar mounting flange, guide bar up end and load-bearing base intercommunication, the terminal surface is connected and coaxial distribution with the magnetism floater down, the magnetostrictive level meter inlays in the guide bar, and be connected with the magnetism floater, wireless data transmission device and control circuit all inlay in load-bearing base. The utility model discloses a very big improvement equipment integration degree of one side has simplified equipment mechanism, has improved the adaptability of check out test set to using the place, and on the other hand detects the precision height, and the detection precision that leads to such as each effectively stops air current, bubble and liquid level ripple receives the interference condition to take place.

Description

Electrical liquid level detection device for perfusion apparatus based on wireless communication foundation

Technical Field

The utility model relates to a liquid level detection equipment especially relates to an electric liquid level detection device for filling machine based on wireless communication basis.

Background

At present, when products such as liquid beverages and the like are produced and filled, the amount of filled liquid is controlled and detected through various liquid level detection devices, although the requirements of practical use can be basically met, because the current liquid level detection devices usually adopt liquid level detection mechanisms based on structures such as a floating block and a floating barrel, the detection precision conditions are extremely easily influenced by the deviation of the floating block and the floating barrel mechanism caused by the fluctuation of liquid level, the corrugation generated on the surface of the liquid level and the airflow used or generated in the production of the beverages in the liquid level detection process, and aiming at the problem, equipment such as a magnetic turning plate type liquid level detection device and the like is developed at present, but the equipment has relatively complex structure, the installation and the use are greatly limited by sites and use environments, and the use flexibility and the universality of the equipment are seriously influenced.

Therefore, in view of the current situation, it is urgently needed to develop a new liquid level detection device to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

To exist not enough on the prior art, the utility model provides a novel adopt chip of little thermal generator, this utility model discloses more traditional liquid level detection equipment, very big improvement on the one hand the equipment integration degree, simplified equipment mechanism, improved the adaptability of check out test set to using the place, on the other hand detects the precision height, and the detection precision that leads to such as respectively effectively stop air current, bubble and liquid level ripple receives the interference condition to take place to very big improvement detection precision and equipment operational reliability.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

the utility model provides an electrical liquid level detection device for filling machine based on wireless communication basis, including bearing base, mounting flange, the guide bar, the magnetism floater, the magnetostrictive level gauge, wireless data transmission device and control circuit, bearing base is connected with the mounting flange up end, and the mounting flange diameter is at least 1.5 times of bearing base diameter, the guide bar is hollow column structure, be connected with mounting flange lower terminal surface and with flange coaxial distribution, the guide bar up end communicates with bearing base, lower terminal surface is connected with the magnetism floater and coaxial distribution, the magnetostrictive level gauge inlays in the guide bar to be connected with the magnetism floater, bearing base is airtight cavity structures, wireless data transmission device and control circuit all inlay in bearing base, just control circuit respectively with magnetostrictive level gauge, wireless data transmission device electrical connection.

Furthermore, the bearing base and the mounting flange are connected through at least three bolts, at least one layer of disc spring with the thickness not less than 3 mm is arranged between the bearing base and the mounting flange, and the disc spring is coaxially distributed with the bearing base and the mounting flange respectively.

Furthermore, the guide rod is provided with a through hole corresponding to the lower end surface of the bearing base, the guide rod is embedded in the through hole and connected with the wall of the through hole through a sealing thread, and the guide rod is embedded between the walls of the through hole and is additionally provided with at least one elastic sealing ring.

Further, the wireless data transmission device is a wireless data transmission device based on any one or more public devices among a bluetooth module, a WIFI module, a Zigbee module and an RIDF module.

Furthermore, the control circuit is a circuit system based on any one of a DSP chip, an IGBT chip and a programmable controller.

The utility model discloses more traditional liquid level detection equipment, very big improvement on the one hand the equipment integration degree, simplified equipment mechanism, improved the adaptability of check out test set to using the place, on the other hand detects the precision height, and the detection precision that leads to such as each effectively stops air current, bubble and liquid level ripple receives the interference condition to take place to very big improvement detection precision and equipment operational reliability.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is a schematic diagram of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in figures 1 and 2, the electrical liquid level detection device for the perfusion apparatus based on the wireless communication foundation comprises a bearing base 1, a mounting flange 2, a guide rod 3, a magnetic floating ball 4, a magnetostrictive liquid level meter 5, a wireless data transmission device 6 and a control circuit 7, wherein the bearing base 1 is connected with the upper end surface of the mounting flange 2, the diameter of the mounting flange 2 is at least 1.5 times that of the bearing base 1, the guide rod 3 is of a hollow columnar structure and is connected with the lower end surface of the mounting flange 2 and coaxially distributed with the mounting flange 2, the upper end surface of the guide rod 3 is communicated with the bearing base 1, the lower end surface of the guide rod is connected with the magnetic floating ball 4 and coaxially distributed with the mounting flange 2, the magnetostrictive liquid level meter 5 is embedded in the guide rod 3 and is connected with the magnetic floating ball 4, the bearing base 1 is of a closed cavity structure, the wireless data transmission device 6 and the control circuit 7 are embedded in the bearing, The wireless data transmission device 6 is electrically connected.

Wherein, bear base 1, mounting flange 2 between connect through at least three bolts 8, and bear and establish at least one deck thickness and be not less than 3 millimeters belleville spring 9 between base 1, the mounting flange 2, belleville spring 9 respectively with bear base 1, the coaxial distribution of mounting flange 2.

Meanwhile, the guide rod 3 is provided with a through hole 10 corresponding to the lower end surface of the bearing base 1, the guide rod 3 is embedded in the through hole 10 and is connected with the wall of the through hole 10 through a sealing thread, and the guide rod 3 is embedded in the wall of the through hole 10 and is additionally provided with at least one elastic sealing ring 11.

In addition, the wireless data transmission device 6 is a wireless data transmission device based on any one or more public devices among a bluetooth module, a WIFI module, a Zigbee module, and an RIDF module.

In this embodiment, the control circuit 7 is a circuit system based on any one of a DSP chip, an IGBT chip, and a programmable controller.

In the embodiment, the annular cylinder is rotary, and the liquid level sensor, the direct current 24V battery and the wireless signal transmitting module rotate together with the annular cylinder. When the sensor of the magnetostrictive liquid level meter works, a circuit part of the sensor excites pulse current on the waveguide wire, and the pulse current magnetic field is generated around the waveguide wire when the current propagates along the guide wire. A float is arranged outside a sensor measuring rod of the magnetostrictive liquid level meter, and the float can move up and down along the measuring rod along with the change of the liquid level. A group of permanent magnetic rings is arranged in the floater. When the pulse current magnetic field meets the magnetic ring magnetic field generated by the floater, the magnetic field around the floater changes, so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position of the floater, and the pulse is transmitted back along the waveguide wire at a fixed speed and is detected by the detection mechanism. The position of the float, i.e. the position of the liquid level, can be accurately determined by measuring the time difference between the pulse current and the torsional wave. The technical advantages of magnetostrictive level gauges are: the magnetostrictive liquid level meter is suitable for measuring the liquid level of the cleaning liquid level with high precision requirement, the precision reaches 1mm, and the precision of the latest product can reach 0.1 mm. The magnetostrictive liquid level meter can also be applied to boundary level measurement between two different liquids. The explosion-proof design is suitable for dangerous occasions, and the volume can be calculated by the intelligent electronic circuit design; the only movable part is the float, and the maintenance amount is extremely low.

The utility model discloses in the actual implementation, at first to constituting the utility model discloses a bearing base, mounting flange, guide bar, magnetism floater, magnetostrictive level meter, wireless data transmission device and control circuit assemble, then will assemble the back the utility model discloses a mounting flange installs on the liquid material storage equipment to make under guide bar and the guide bar in the magnetism floater that the terminal surface is connected imbeds liquid material storage equipment, with control circuit and external power supply circuit and control system electrical connection at last, establish data communication with wireless data transmission device and external control system and be connected, thereby accomplish the utility model discloses the assembly.

Furthermore, carry out the utility model discloses when being connected with outside monitored control system, will at least two the utility model discloses install in the filling tank, and make the utility model discloses encircle filling tank axis equipartition, then will the utility model discloses be connected with outside electrical power generating system respectively, simultaneously the utility model discloses a wireless data transmission device is connected with outside wireless data communication network to be connected with the upper remote control system based on programmable controller through outside wireless data communication network, the upper remote control system based on programmable controller simultaneously respectively with data output terminal equipment and filling tank liquid feeding, flowing back control apparatus electrical connection, can accomplish the needs of the operation of the utility model discloses networking.

When carrying out liquid level detection, directly pour the liquid material into liquid material storage equipment, and gradually right along with the liquid level rises the utility model discloses a magnetism floater floods, at flooding in-process, the magnetism floater receives liquid buoyancy and takes place the displacement change, then and produce a torsional wave pulse in magnetism floater department through the displacement change, this torsional wave pulse direct transmission reaches the magnetostrictive level gauge in, thereby it excites out the purpose that pulse current reaches liquid level detection to go out at the magnetostrictive level gauge, simultaneously when carrying out liquid level detection, the data that will detect pass through wireless data transmission device and convey to external control system in, thereby realize the purpose of long-range wireless liquid level accurate detection.

The utility model discloses a magnetostrictive liquid level meter carries out the measurement of oil tank liquid level, and its advantage shows:

1. the reliability is strong: the magnetostrictive liquid level meter adopts the waveguide principle and has no mechanical movable part, so that no friction and no abrasion are caused. The whole transducer is sealed in the stainless steel pipe and is not in contact with the measuring medium, and the sensor is reliable in operation and long in service life.

2. The precision is high: the magnetostrictive liquid level meter works by waveguide pulses, and the measured displacement is determined by measuring the time of the start pulse and the end pulse during the work, so the measuring precision is high, the resolution is better than 0.01 percent FS, and the precision is difficult to achieve by other sensors.

3. The safety is good: the magnetostrictive liquid level meter has high explosion-proof performance, intrinsic safety and explosion prevention, is safe to use, and is particularly suitable for measuring chemical raw materials and flammable liquid. The cover of the tank does not need to be opened during measurement, so that the insecurity of manual measurement is avoided.

4. The magnetostrictive liquid level meter is easy to install and maintain and is simple: the magnetostrictive liquid level gauge is generally installed through an existing pipe opening on the top of the tank, is particularly suitable for installing underground storage tanks and operated storage tanks, and can not influence normal production in the installation process.

5. The system is convenient for automatic work: the secondary instrument of the magnetostrictive liquid level meter adopts standard output signals, so that a microcomputer can process the signals conveniently, networking work is easy to realize, and the automation degree of the whole measuring system is improved.

The magnetostrictive liquid level meter consists of three parts: the detection rod, the circuit unit and the floater. During measurement, the circuit unit generates a current pulse which is transmitted down the magnetostrictive wire and generates a toroidal magnetic field.

A floater is arranged outside the detection rod and moves up and down along the detection rod along with the change of the liquid level. Because a group of permanent magnets are arranged in the floater, the floater simultaneously generates a magnetic field. When the current magnetic field meets the float magnetic field, a "twist" pulse, or "return" pulse, is generated. The time difference between the "return" pulse and the current pulse is converted into a pulse signal, whereby the actual position of the float is calculated and the liquid level is measured.

The leakage of gasoline into the soil is a more serious problem than the volatilization of gasoline into the air, which is a must-measure indicator in developed countries and also a peak-of-the-world technique. The strong power science and technology magnetostriction liquid level instrument can measure the leakage of the oil tank when measuring the liquid level, the temperature and other parameters of the oil tank, and the leakage measurement precision reaches

0.375L/h, can meet the requirements of different users and realize higher cost performance ratio. The utility model discloses passing traditional liquid level detection equipment more, very big improvement on the one hand the equipment integration degree, simplified equipment mechanism, improved the adaptability of check out test set to using the place, on the other hand detects the precision height, and the detection precision that leads to such as each effectively stops air current, bubble and liquid level ripple receives the interference condition to take place to very big improvement detection precision and equipment operational reliability.

Those skilled in the art should understand that the present invention is not limited by the above embodiments. The foregoing embodiments and description have been made only for the purpose of illustrating the principles of the invention. The present invention can be further modified and improved without departing from the spirit and scope of the present invention. Such changes and modifications are intended to be within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an electric liquid level detection device for filling machine based on wireless communication basis which characterized in that: electric liquid level detection device for filling machine including bearing base, mounting flange, guide bar, magnetism floater, magnetostrictive level gauge, wireless data transmission device and control circuit, bearing base is connected with the mounting flange up end, and the mounting flange diameter is 1.5 times at least of bearing base diameter, the guide bar is hollow columnar structure, is connected and with flange coaxial distribution with mounting flange lower terminal surface, guide bar up end and bearing base intercommunication, lower terminal surface are connected and coaxial distribution with the magnetism floater, the magnetostrictive level gauge inlays in the guide bar to be connected with the magnetism floater, bearing base is airtight cavity structures, wireless data transmission device and control circuit all inlay in bearing base, just control circuit respectively with magnetostrictive level gauge, wireless data transmission device electrical connection.

2. The electrical liquid level detecting device for the perfusion apparatus based on the wireless communication base as claimed in claim 1, wherein: the bearing base and the mounting flange are connected through at least three bolts, at least one layer of disc spring with the thickness not less than 3 mm is arranged between the bearing base and the mounting flange, and the disc spring is coaxially distributed with the bearing base and the mounting flange respectively.

3. The electrical liquid level detecting device for the perfusion apparatus based on the wireless communication base as claimed in claim 1, wherein: the guide rod is provided with a through hole corresponding to the lower end surface of the bearing base, embedded in the through hole and connected with the wall of the through hole through sealing threads, and embedded between the walls of the through hole and provided with at least one elastic sealing ring.

4. The electrical liquid level detecting device for the perfusion apparatus based on the wireless communication base as claimed in claim 1, wherein: the wireless data transmission device is a wireless data transmission device based on any one or more public devices among a Bluetooth module, a WIFI module, a Zigbee module and an RIDF module.

5. The electrical liquid level detecting device for the perfusion apparatus based on the wireless communication base as claimed in claim 1, wherein: the control circuit is a circuit system based on any one of a DSP chip, an IGBT chip and a programmable controller.