CN219608154U - Liquid level transmitter - Google Patents

Abstract

The utility model provides a liquid level transmitter, which comprises a gas cylinder, wherein a permanent magnet is arranged in the bottom end of the gas cylinder, the top end of the gas cylinder is communicated with one end of a pressure-guiding capillary, the other end of the pressure-guiding capillary is communicated with the bottom of a sensor base, and the top end of the sensor base is in threaded connection with an electric shell; the top end of the sensor base extends to the inside of the electric shell and is connected with a pressure sensor in a sealing way. In the structure of the utility model, the gas cylinder and the pressure guiding capillary tube are arranged for pressure guiding, so that the sensor component is prevented from being in direct contact with liquid, and the problems of inaccurate detection and damage caused by liquid erosion of the sensor component are avoided.

Description

Liquid level transmitter

Technical Field

The utility model belongs to the technical field of transmitters, and particularly relates to a liquid level transmitter.

Background

The liquid level transducer is an extension and development of pressure transducer technology, and can accurately measure and transmit the volume, liquid height and weight of water, oil and paste according to the principle that the pressures generated by liquids with different specific gravities at different heights are in linear relation.

The existing liquid level transmitter is mostly put into, the sensor assembly is directly put into the liquid for liquid level monitoring, and the following defects exist: 1) The sensor assembly is easy to be influenced by liquid shaking to generate floating, so that the liquid level monitoring is inaccurate; 2) The sensor assembly and the cable for connecting the sensor assembly are directly contacted with liquid, so that the problem that liquid level monitoring is inaccurate or even damaged due to liquid erosion is easily caused, and the service life is short.

How to design a liquid level transmitter and how to increase the liquid level monitoring accuracy becomes the problem to be solved urgently.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a liquid level transmitter, which is used for solving the problem of low accuracy of monitoring the liquid level of the liquid level transmitter in the prior art.

In order to achieve the above purpose, the utility model provides a liquid level transmitter, which comprises a gas cylinder, wherein a permanent magnet is arranged in the bottom end of the gas cylinder, the top end of the gas cylinder is communicated with one end of a pressure guiding capillary, the other end of the pressure guiding capillary is communicated with the bottom of a sensor base, and the top end of the sensor base is in threaded connection with an electric shell;

the sensor base top stretches to the inside of electric casing and sealing connection has pressure sensor, pressure sensor passes through signal wire and is connected with measuring circuit, measuring circuit passes through the display data cable and is connected with the display panel, the display panel passes through the protecgulum pressure equipment at electric casing's front side.

By adopting the technical scheme: the measured liquid and the pressure sensor are isolated through the hollow gas cylinder and the pressure guiding capillary tube, the non-contact liquid level measurement is realized in a pressure guiding mode, the problem that the pressure sensor and the corresponding cable are damaged due to inaccurate extension of monitoring caused by liquid erosion is solved, and the device can adapt to the measurement of the liquid level in various different liquids while ensuring the monitoring precision and the service life; the permanent magnet is arranged in the gas cylinder, the weight of the gas cylinder is increased by the permanent magnet, and the permanent magnet can magnetically attract the bottom of the metal container, so that the stability of the position of the gas cylinder can be ensured no matter what material container is inside, the problem that monitoring data float due to floating of the gas cylinder is avoided, and the accuracy of liquid level monitoring is further ensured; the monitoring data of the pressure sensor can be calculated by the measuring circuit and then displayed on the display panel, so that the liquid level height data can be conveniently observed in real time.

In an embodiment of the present utility model, a liquid inlet is provided at the bottom end of the gas cylinder;

by adopting the technical scheme: ensure that liquid can get into the inside of gas cylinder, guarantee the normal clear of liquid level monitoring.

In an embodiment of the utility model, one end of the pressure-guiding capillary tube is welded with the gas cylinder, the other end of the pressure-guiding capillary tube is integrally connected with a connector, the connector penetrates into the sensor base, and the connector penetrates through the bottom end of the sensor base to be welded;

by adopting the technical scheme: the two ends of the pressure guiding capillary tube are respectively welded with the gas cylinder and the sensor base, so that the tightness of the connecting position can be ensured, the stability of pressure guiding is ensured, and the accuracy of liquid level monitoring data is further ensured.

In an embodiment of the utility model, a compression ring is pressed between the top end of the sensor base and the electric housing;

by adopting the technical scheme: through setting up the leakproofness that the clamping ring increases sensor base and electric housing hookup location, increase the leakproofness that sensor base and the inside pressure sensor in top are connected simultaneously, guarantee that pressure transfer is stable, avoid appearing the pressure release and lead to the inaccurate problem of liquid level monitoring.

In an embodiment of the utility model, the front cover is an annular cover, and window glass and a display panel are sequentially pressed between the front cover and the electric housing, wherein the display panel is attached to the display panel, and auxiliary display data is etched on one side of the display panel facing away from the display panel;

by adopting the technical scheme: the display data of the display panel can be ensured to be transmitted out through the front cover, and meanwhile, the window glass and the display panel are added to protect and assist the display panel, so that the staff can understand the monitoring data conveniently.

In one embodiment of the utility model, the measuring circuit is connected with the wiring terminal through a wire, and the wiring terminal is pressed on the rear side of the electric shell through the rear cover;

by adopting the technical scheme: the connecting terminal is additionally arranged to connect the lines, so that the power supply line and the signal connecting line can be connected quickly, and data can be conveyed remotely.

In an embodiment of the utility model, the rear cover is an annular cover.

By adopting the technical scheme: ensure that peripheral hardware wiring can be connected with binding post.

Advantageous effects

In the structure of the utility model, the gas cylinder and the pressure guiding capillary tube are arranged for pressure guiding, so that the sensor component is prevented from being in direct contact with liquid, and the problems of inaccurate detection and damage caused by liquid erosion of the sensor component are avoided; the popularization and application have good economic benefit and social benefit.

Drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is an exploded view of the present utility model.

In the figure: 1. a gas cylinder; 2. a pressure-introducing capillary tube; 21. a connector; 3. a sensor base; 4. an electrical housing; 5. a pressure sensor; 6. a compression ring; 7. a measurement circuit; 8. a display panel; 9. a display panel; 10. a window glass; 11. a front cover; 12. a connection terminal; 13. and a rear cover.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1-2. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

As shown in fig. 1-2, the utility model provides a liquid level transmitter, which comprises a gas cylinder 1, wherein a permanent magnet is arranged in the bottom end of the gas cylinder 1, the top end of the gas cylinder 1 is communicated with one end of a pressure guiding capillary tube 2, the other end of the pressure guiding capillary tube 2 is communicated with the bottom of a sensor base 3, and the top end of the sensor base 3 is in threaded connection with an electric shell 4; the top end of the sensor base 3 extends into the electric shell 4 and is hermetically connected with a pressure sensor 5, the measured liquid and the pressure sensor 5 are isolated through the hollow gas cylinder 1 and the pressure guiding capillary tube 2, non-contact liquid level measurement is realized in a pressure guiding mode, the pressure sensor 5 and a corresponding cable are free from the problem that the damage is caused by inaccurate monitoring extension due to liquid erosion, and the pressure sensor can adapt to the measurement of liquid levels in various different liquids while ensuring the monitoring precision and the service life; the permanent magnet is arranged in the gas cylinder 1, the permanent magnet increases the weight of the gas cylinder 1, and can magnetically attract the bottom of the metal container, so that the stability of the position of the gas cylinder 1 can be ensured no matter what material container is inside, the problem that the monitoring data float due to the floating of the gas cylinder 1 is avoided, and the accuracy of liquid level monitoring is further ensured; the pressure sensor 5 is connected with the measuring circuit 7 through a signal wire, the measuring circuit 7 is connected with the display panel 8 through a display data cable, the display panel 8 is pressed on the front side of the electric shell 4 through the front cover 11, the monitoring data of the pressure sensor 5 can be calculated through the measuring circuit 7, and then the liquid level height is displayed on the display panel 8, so that the liquid level height data can be observed in real time.

Further, the measuring circuit 7 is connected with the wiring terminal 12 through a wire, the wiring terminal 12 is pressed on the rear side of the electric housing 4 through the rear cover 13, and the wiring terminal 12 is additionally arranged to connect a circuit, so that a power supply line and a signal connection line can be quickly connected for data remote transmission.

In specific implementation, the gas cylinder 1 is delivered to the bottom of the container under the action of the pressure-guiding capillary 2, water in the container directly enters the gas cylinder 1 and the pressure-guiding capillary 2 from the gas cylinder 1, gas in the gas cylinder 1 and the pressure-guiding capillary 2 is compressed, the compressed gas acts on the pressure sensor 5 in the electric shell 4 to obtain corresponding pressure data, and finally the pressure data is calculated by the measuring circuit 7 to obtain liquid level height data, namely H=p/ρg, and is directly displayed by the display panel 8.

In summary, the liquid level transmitter is provided by the utility model, the gas cylinder 1 and the pressure guiding capillary tube 2 are arranged to guide pressure, so that the sensor component is prevented from being in direct contact with liquid, and the problems of inaccurate detection and damage caused by liquid erosion of the sensor component are avoided, meanwhile, the permanent magnet is arranged in the gas cylinder 1, so that the liquid level transmitter can adapt to different liquid containers to keep stable states, the problem of floating monitoring positions is avoided, and the accuracy of liquid level monitoring is further ensured; the popularization and application have good economic benefit and social benefit. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (7)

1. A liquid level transmitter comprising a gas cylinder (1), characterized in that: a permanent magnet is arranged in the bottom end of the gas cylinder (1), the top end of the gas cylinder (1) is communicated with one end of a pressure guiding capillary tube (2), the other end of the pressure guiding capillary tube (2) is communicated with the bottom of a sensor base (3), and the top end of the sensor base (3) is in threaded connection with an electric shell (4);

the sensor base (3) top stretches to the inside of electric casing (4) and sealing connection has pressure sensor (5), pressure sensor (5) are connected with measurement circuit (7) through signal wire, measurement circuit (7) are connected with display panel (8) through showing data cable, display panel (8) are at the front side of electric casing (4) through protecgulum (11) pressure equipment.

2. The fluid level transmitter of claim 1, wherein: the bottom of the gas cylinder (1) is provided with a liquid inlet.

3. The fluid level transmitter of claim 1, wherein: one end of the pressure guiding capillary tube (2) is welded with the gas cylinder (1), the other end of the pressure guiding capillary tube (2) is integrally connected with a connector (21), the connector (21) penetrates into the sensor base (3), and the connector (21) penetrates through the bottom end of the sensor base (3) to be welded.

4. The fluid level transmitter of claim 1, wherein: a compression ring (6) is pressed between the top end of the sensor base (3) and the electric shell (4).

5. The fluid level transmitter of claim 1, wherein: the front cover (11) is an annular cover, window glass (10) and a display panel (9) are sequentially pressed between the front cover (11) and the electric shell (4), wherein the display panel (9) is attached to the display panel (8), and auxiliary display data are etched on one side, back to the display panel (8), of the display panel (9).

6. The fluid level transmitter of claim 1, wherein: the measuring circuit (7) is connected with the wiring terminal (12) through a wire, and the wiring terminal (12) is pressed on the rear side of the electric housing (4) through the rear cover (13).

7. The fluid level transmitter of claim 6, wherein: the rear cover (13) is an annular cover.