A highly automated liquid level monitoring device

Abstract

A highly automated liquid level monitoring device includes a water tank body and a liquid level control room, wherein the water tank body is connected to a water inlet pipe, the water inlet pipe is connected to a water supply tank, a water inlet valve is arranged on the water inlet pipe, and the liquid level control room is located above the water tank body, wherein a first laser transceiver, a second laser transceiver and a control box are arranged in the liquid level control room, and the first laser transceiver and the second laser transceiver are both connected to the control box. The liquid level monitoring device has a simple structure, and can automatically monitor the liquid level changes in the water tank body. The accuracy of liquid level monitoring can be ensured by the laser transceiver and the control box, and the water inlet valve will be automatically opened or closed when the liquid level reaches the lower limit or upper limit, so as to ensure that there is sufficient water in the water tank body. At the same time, the liquid level monitoring device can change the upper limit of the liquid level by reasonably adjusting the gear ratio of the second gear to the first gear, which greatly improves the applicability of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid level measuring equipment, and in particular relates to a highly automated liquid level monitoring device. Background Art

[0002] The detection of the chute liquid level is a critical factor in aluminum casting and rolling production. The drastic fluctuation of the chute liquid level will cause the front box liquid level to fluctuate, thus affecting the width of the online cast-rolled plate, and even causing quality defects such as slipping and tropical strips, resulting in unqualified products and affecting the use of subsequent cold rolling processes. Therefore, in the casting and rolling production, the front box liquid level is required to be stable to ensure the stability of the width of the online cast-rolled plate, no end surface defects, and stable and qualified quality. At present, in terms of liquid level monitoring, some companies use infrared devices to monitor the liquid level, and automatically alarm when the liquid level fluctuation exceeds the standard. However, this method requires large equipment investment and high cost. Some companies use casting nozzle materials to make floats and monitor the liquid level by observing the position of the float in the chute. This method requires production personnel to frequently go to the chute to observe the position of the float, resulting in a waste of human resources. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and provide a highly automated liquid level monitoring device.

[0004] A highly automated liquid level monitoring device includes a water tank body and a liquid level control room, wherein the water tank body is connected to a water inlet pipe, the water inlet pipe is connected to a water supply tank, and a water inlet valve is provided on the water inlet pipe. The liquid level control room is located above the water tank body, and a first laser transceiver, a second laser transceiver and a control box are provided in the liquid level control room, and the first laser transceiver and the second laser transceiver are both connected to the control box.

[0005] The water tank body is provided with a first movable shaft and a second movable shaft placed front and back, the first movable shaft is provided with a first gear and a laser reflector plate, the laser reflector plate is perpendicular to the optical axis of the first laser transceiver, and one end of the laser reflector plate is against the water tank body, the second movable shaft is provided with a second gear and a connecting rod, the second gear is meshed with the first gear, and a float is connected to the side of the connecting rod away from the second movable shaft.

[0006] In order to reduce the influence of the incoming water flow on the original liquid level in the water tank body, further, the water outlet of the water inlet pipe is close to the bottom of the water tank body.

[0007] In order to realize automatic control of the water inlet valve, further, the water inlet valve is connected to a control box.

[0008] Furthermore, an alarm buzzer is also provided in the liquid level control room, and the alarm buzzer is connected to the control box.

[0009] In order to prevent the occurrence of erroneous operation of the control box due to laser reflection during the liquid level monitoring process, further, the middle reflection area of ​​the laser reflection plate is located on the optical axis of the first laser transceiver, and except for the middle reflection area, the remaining reflection areas on the laser reflection plate are coated with a light-absorbing material layer.

[0010] Furthermore, the gear ratio of the second gear to the first gear is in the range of 1 to 1.2.

[0011] Furthermore, the connecting rod and the floating ball are both made of stainless steel.

[0012] Beneficial effects: The present invention discloses a highly automated liquid level monitoring device. The liquid level monitoring device has a simple structure and can automatically monitor the liquid level changes in a water tank body. The accuracy of the liquid level monitoring can be ensured by a laser transceiver and a control box. When the liquid level reaches a lower limit or an upper limit, the water inlet valve can be automatically opened or closed to ensure that there is sufficient water in the water tank body. At the same time, the liquid level monitoring device can change the upper limit of the liquid level by reasonably adjusting the tooth ratio of the second gear to the first gear, thereby greatly improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a liquid level monitoring device;

[0014] Figure 2 It is a top view of the internal structure of the water tank body;

[0015] Figure 3 It is another structural schematic diagram of the liquid level monitoring device;

[0016] In the figure: 1, water tank body 11, water inlet pipe 12, water inlet valve 2, liquid level control room 21, first laser transceiver 22, second laser transceiver 23, control box 24, alarm buzzer 3, first movable shaft 31, first gear 32, laser reflector 33, light absorbing material layer 4, second movable shaft 41, second gear 42, connecting rod 43, float Specific implementation plan

[0017] In order to deepen the understanding of the present invention, the present invention is further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0018] like Figure 1 and Figure 2As shown, a highly automated liquid level monitoring device includes a water tank body 1 and a liquid level control room 2, wherein the water tank body 1 is connected to a water inlet pipe 11, the water inlet pipe 11 is connected to a water supply tank, and a water inlet valve 12 is provided on the water inlet pipe 11, and the liquid level control room 2 is located above the water tank body 1, wherein a first laser transceiver 21, a second laser transceiver 22 and a control box 23 are provided in the liquid level control room 2, and both the first laser transceiver 21 and the second laser transceiver 22 are connected to the control box 23.

[0019] The water tank body 1 is provided with a first movable shaft 3 and a second movable shaft 4 placed front and back, the first movable shaft 3 is provided with a first gear 31 and a laser reflection plate 32, the laser reflection plate 32 is perpendicular to the optical axis of the first laser transceiver 21, and one end of the laser reflection plate 32 is against the water tank body 1, the second movable shaft 4 is provided with a second gear 41 and a connecting rod 42, the second gear 41 is meshed with the first gear 31, and the connecting rod 42 is connected to a float 43 on the side away from the second movable shaft 4.

[0020] In order to reduce the influence of the incoming water flow on the original liquid level in the water tank body, in this embodiment, the water outlet of the water inlet pipe 11 is close to the bottom of the water tank body 1.

[0021] In order to realize automatic control of the water inlet valve 12 , in this embodiment, the water inlet valve 12 is connected to the control box 23 .

[0022] In this embodiment, an alarm buzzer 24 is further provided in the liquid level control room 2 , and the alarm buzzer 24 is connected to the control box 23 .

[0023] In order to prevent the control box 23 from malfunctioning due to the reflection of the laser during the liquid level monitoring process, in this embodiment, the middle reflection area of ​​the laser reflection plate 32 is located on the optical axis of the first laser transceiver 21, and except for the middle reflection area, the remaining reflection areas on the laser reflection plate 32 are coated with a light-absorbing material layer 33.

[0024] In this embodiment, the gear ratio of the second gear 41 to the first gear 31 is in the range of 1 to 1.2.

[0025] In this embodiment, the connecting rod 42 and the floating ball 43 are both made of stainless steel.

[0026] Working conditions: Figure 1 and Figure 3As shown, when the liquid level in the water tank body 1 reaches a low level, the first laser transceiver 21 emits a laser beam and receives the laser beam through the middle reflection area of ​​the laser reflection plate 32. At this time, the controller 23 receives the light receiving signal from the first laser transceiver 21, opens the water inlet valve 12 on the water inlet pipe 11, and reminds the staff through the alarm buzzer 24: water begins to enter the water tank body 1.

[0027] During the water intake process of the water tank body 1, the float 43 on the liquid surface drives the second movable shaft 4 to rotate counterclockwise through the connecting rod 42 as the liquid level rises. Due to the meshing action of the second gear 41 and the first gear 31, during the counterclockwise rotation of the second movable shaft 4, the first movable shaft 3 drives the laser reflector 32 to rotate clockwise until the middle reflection area of ​​the laser reflector 32 is located on the optical axis of the second laser transceiver 22. At this time, the second laser transceiver 22 emits and receives the laser beam, and the controller 23 receives the light receiving signal of the second laser transceiver 22, closes the water inlet valve 12 on the water inlet pipe 11, and reminds the staff through the alarm buzzer 24: the water intake of the water tank body 1 stops.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly automated liquid level monitoring device, comprising a water tank body and a liquid level control room, characterized in that: The water tank body is connected with a water inlet pipe, the water inlet pipe is connected with a water supply tank, a water inlet valve is arranged on the water inlet pipe, the liquid level control room is located above the water tank body, a first laser transceiver, a second laser transceiver and a control box are arranged in the liquid level control room, and both the first laser transceiver and the second laser transceiver are connected with the control box; The water tank body is provided with a first movable shaft and a second movable shaft placed front and back, the first movable shaft is provided with a first gear and a laser reflector plate, the laser reflector plate is perpendicular to the optical axis of the first laser transceiver, and one end of the laser reflector plate is against the water tank body, the second movable shaft is provided with a second gear and a connecting rod, the second gear is meshed with the first gear, and a floating ball is connected to the side of the connecting rod away from the second movable shaft; The liquid level control room is also provided with an alarm buzzer, which is connected to the control box; The middle reflection area of ​​the laser reflection plate is located on the optical axis of the first laser transceiver, and except for the middle reflection area, the remaining reflection areas on the laser reflection plate are coated with a light absorbing material layer; The water inlet valve is connected to the control box; The first laser transceiver emits a laser beam, and receives the laser beam through the middle reflection area of ​​the laser reflection plate. The controller receives the light receiving signal of the first laser transceiver, opens the water inlet valve on the water inlet pipe, and reminds the staff through the alarm buzzer that water starts to enter the water tank; As the liquid level rises, the float on the liquid surface drives the second movable shaft to rotate counterclockwise through the connecting rod. Due to the meshing action of the second gear and the first gear, during the counterclockwise rotation of the second movable shaft, the first movable shaft drives the laser reflector to rotate clockwise until the middle reflection area of ​​the laser reflector is located on the optical axis of the second laser transceiver. The second laser transceiver emits and receives the laser beam. The controller receives the light receiving signal of the second laser transceiver, closes the water inlet valve on the water inlet pipe, and reminds the staff to stop the water inlet into the water tank through the alarm buzzer.

2. A highly automated liquid level monitoring device according to claim 1, characterized in that: The water outlet of the water inlet pipe is close to the bottom of the water tank body.

3. A highly automated liquid level monitoring device according to claim 1, characterized in that: The gear ratio of the second gear to the first gear is in the range of 1 to 1.

2.

4. A highly automated liquid level monitoring device according to claim 1, characterized in that: The connecting rod and the float are made of stainless steel.

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