CN215003822U - Liquid level measuring device - Google Patents

Abstract

The utility model relates to a liquid level measuring device, including electric capacity measurement meter, terminal box, baffle and measuring cylinder, the electric capacity measurement meter includes changer and probe, the probe is connected with the changer, the terminal box is hollow structure, the outside of changer is located to the terminal box cover, the baffle sets up in the junction of probe and changer, measuring cylinder is hollow cylindric structure, measuring cylinder can dismantle to be connected on the baffle, and measure the cover and locate outside the probe, measure the last inlet opening of having seted up a plurality of vertical arrangements of cylinder. The measuring cylinder of the liquid level measuring device is used for intercepting and reducing the speed of water flow, so that the water flow stably flows into the measuring cylinder, and the influence of turbulence on the measuring result of the probe is prevented. A stable measuring plane is formed in the measuring cylinder, the stability of the water level is improved obviously, and the measuring precision of the liquid level is improved to a large extent.

Description

Liquid level measuring device

Technical Field

The utility model relates to a level measurement's field especially relates to a level measurement device.

Background

A pool liquid level measuring device is installed in an underground water storage pool at the front end of a general large water pump, and the pool liquid level measuring device adopts a static pressure type liquid level meter, a radar liquid level meter and an ultrasonic liquid level meter. The static pressure type liquid level meter utilizes a pressure sensing element to measure water pressure and converts the water pressure into an electric signal to measure liquid level; the radar liquid level meter adopts electromagnetic pulses to emit to measure the liquid level at the speed of light, the liquid level height is calculated by measuring the time difference from the emission of the liquid level to the reception of signals, and finally the liquid level height is calculated; the ultrasonic liquid level meter transmits ultrasonic waves to a measured liquid level at a fixed speed, and the liquid leaving height and the extreme liquid level height are calculated through the time difference between the transmission of the measured liquid level and the reception of signals.

The influence of water pump suction and original design structure in the cistern is great, and for the convenience of installation and maintenance, pond liquid level measurement device normally installs in the pond corner, can produce the circulation in this region, and the surface of water fluctuation is great, and the device bottom can deposit silt particle. The static pressure type liquid level meter is very easy to be influenced by the pressure of turbulent water in a turbulent flow environment, the fluctuation of the measured water level is large, and when more silt exists in the tank, the probe is easily buried in the silt, so that the measurement is inaccurate; problems with radar level gauges and ultrasonic level gauges: on one hand, due to the large influence of liquid level fluctuation, an independent measuring area needs to be arranged, and the arrangement of a measuring environment is difficult to construct; on the other hand, the measuring probe is easy to condense water drops to cause inaccurate measurement.

SUMMERY OF THE UTILITY MODEL

Therefore, a liquid level measuring device is needed to solve the problem that the liquid level measurement of the underground water reservoir is inaccurate.

For realizing above-mentioned purpose, the inventor provides a liquid level measurement device, including electric capacity measurement meter, terminal box, baffle and a measuring cylinder, the electric capacity measurement meter includes changer and probe, the probe is connected with the changer, the terminal box is hollow structure, the outside of changer is located to the terminal box cover, the baffle sets up in the junction of probe and changer, the measuring cylinder is hollow cylindric structure, the measuring cylinder can be dismantled and connect on the baffle, and outside the probe was located to the measuring cylinder cover, set up the inlet opening of a plurality of vertical arrangements on the measuring cylinder.

Furthermore, a clamping groove is formed in one end face, facing the probe rod, of the baffle, and the structure of the clamping groove is matched with the end portion of the measuring cylinder.

Furthermore, an anti-skid piece is arranged in the clamping groove.

Further, the anti-slip piece is made of rubber or silica gel.

Further, the baffle is of a disc-shaped structure.

Furthermore, the aperture of the water inlet hole is 1-2 mm.

Further, the distance value of the water inlet holes is 100-120 mm.

Further, the inner diameter of the measuring cylinder is 90-110 mm.

Further, the material of the measuring cylinder is 316L stainless steel.

Different from the prior art, the technical scheme has the following advantages: the measuring cylinder of the liquid level measuring device is used for intercepting and reducing the speed of water flow, so that the water flow stably flows into the measuring cylinder, and the influence of turbulence on the measuring result of the probe is prevented. A stable measuring plane is formed in the measuring cylinder, the stability of the water level is improved obviously, and the measuring precision of the liquid level is improved to a large extent.

Drawings

Fig. 1 is a schematic structural diagram of a liquid level measuring device according to the present embodiment.

Description of reference numerals:

1. a junction box;

2. a baffle plate;

3. a measuring cylinder;

31. a water inlet hole.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1, the utility model provides a liquid level measuring device, including electric capacity meter, terminal box 1, baffle 2 and measuring cylinder 3, the theory of operation of electric capacity meter is through the capacitance change that detects the water level, changes into digital quantity signal, handles at the singlechip, finally shows through LCD. The conversion technology is the prior art and will not be described in detail in this application document.

The capacitance measuring meter comprises a transmitter and a probe, the probe is connected with the transmitter and used for detecting the height of the water level. The junction box is of a hollow structure, is made of plastic materials, and can be made of ABS. The junction box cover is arranged outside the transmitter, the junction box is of a detachable structure and comprises a first junction box and a second junction box, and the first junction box and the second junction box are connected through a connecting piece or a buckle structure.

The baffle sets up in the junction of probe and changer, and the effect of baffle is used for supporting this liquid level measurement device, in order to avoid dust or other impurity to fall into the cistern, is provided with the apron usually in the top of underground formula cistern, has seted up the through-hole on the apron, and liquid level measurement device's lower extreme runs through in the through-hole of apron for under the probe stretched into the liquid level in pond, the baffle can locate the top of apron with this liquid level measurement device's changer card.

In certain preferred embodiments, the baffle is a disk-like structure. In other embodiments, the baffle may have other shapes such as a square, oval, or triangle.

The measuring cylinder is of a hollow cylindrical structure, the probe cover is arranged in the measuring cylinder, the measuring cylinder is provided with a plurality of water inlet holes 31, when the measuring cylinder is used, the water inlet holes of the measuring cylinder face to the downstream backwater direction, and water flow is blocked and slowed down by the measuring cylinder, so that the water flow stably flows into the measuring cylinder, and the influence of turbulence on the measuring result of the probe is prevented. A stable measuring plane is formed inside the measuring cylinder, and the stability of the water level is effectively improved.

The water inlet holes in the measuring cylinder are vertically arranged, and the central axial direction of the water inlet holes is the same as the direction of water flow.

In certain preferred embodiments, the material of the measuring cylinder is 316L stainless steel. As the measuring cylinder needs to be immersed below the liquid level for a long time, the 316L stainless steel has the characteristics of corrosion resistance and rust resistance, and the service life of the measuring cylinder can be effectively prolonged by the measuring cylinder made of the 316L stainless steel.

In certain preferred embodiments, the inner diameter of the measuring cylinder is 90-110 mm.

In some preferred embodiments, the distance between the water inlet holes is 100-120 mm.

In some preferred embodiments, the aperture of the water inlet hole is 1-2 mm.

The measuring cylinder is detachably connected to the baffle, and therefore the personnel can clean the probe rod and the garbage in the measuring cylinder conveniently.

The concrete structure that a measuring cylinder can be dismantled and connect in the baffle does: a clamping groove is formed in one end face, facing the probe, of the baffle, and the structure of the clamping groove is matched with the end portion of the measuring cylinder. The draw-in groove is the loop configuration promptly, is provided with anti-skidding piece in the draw-in groove, measures a section of thick bamboo and inserts in the draw-in groove, and anti-skidding piece can effectively prevent to measure a section of thick bamboo and drop from the draw-in groove. The anti-skid member is of an annular structure. In some preferred embodiments, the anti-slip member is made of rubber or silica gel. The coefficient of friction of silica gel and rubber material is big, can increase the frictional force between a measurement section of thick bamboo and the anti-skidding piece, and the effect that prevents to measure a section of thick bamboo and drop is better.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims (9)

1. A liquid level measuring device, characterized in that: including capacitance measurement meter, terminal box, baffle and measuring cylinder, the capacitance measurement meter includes changer and probe, the probe is connected with the changer, the terminal box is hollow structure, the outside of changer is located to the terminal box cover, the baffle sets up in the junction of probe and changer, measuring cylinder is hollow cylindric structure, measuring cylinder can dismantle to be connected on the baffle, and measure the cover and locate outside the probe, set up the inlet opening of a plurality of vertical arrangements on the measuring cylinder.

2. The fluid level measuring device of claim 1, wherein: a clamping groove is formed in one end face, facing the probe, of the baffle, and the structure of the clamping groove is matched with the end portion of the measuring cylinder.

3. A liquid level measuring device according to claim 2, wherein: and an anti-skid piece is arranged in the clamping groove.

4. A liquid level measuring device according to claim 3, wherein: the anti-slip piece is made of rubber or silica gel.

5. The fluid level measuring device of claim 1, wherein: the baffle is of a disc-shaped structure.

6. The fluid level measuring device of claim 1, wherein: the aperture of the water inlet is 1-2 mm.

7. The fluid level measuring device of claim 1, wherein: the distance value of the water inlet holes is 100-120 mm.

8. The fluid level measuring device of claim 1, wherein: the inner diameter of the measuring cylinder is 90-110 mm.

9. The fluid level measuring device of claim 1, wherein: the material of the measuring cylinder is 316L stainless steel.

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