Liquid level meter calibration device

Abstract

The utility model discloses a liquidometer calibration device which comprises a water storage tank, a calibration water tank and a liquidometer body, a water level control assembly is installed on the side face of the calibration water tank, a standard graduated scale is installed on the calibration water tank, the calibration water tank is communicated with a tubular column, a magnetic floater is installed in the tubular column, and a magnetic block is connected to the surface of the tubular column in a sliding mode. A bidirectional laser transmitter is installed on the magnetic block, a connecting pipe is connected to the side face of the calibration water tank, and the connecting pipe is connected with the liquid level meter body. By adopting the structure, when calibration is carried out, laser is emitted from two sides of the laser emitter, light rays emitted from one side can be the same as liquid level scales displayed by the standard graduated scale, the other side can irradiate the liquid level meter body, and due to the fact that the liquid level meter is not shielded by obstacles, whether measurement of the liquid level meter body is standard or not can be visually seen; and in addition, left marking along light rays is facilitated, so that a better calibration effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, in particular to a liquid level meter calibration device. Background Art

[0002] The liquid level meter is an instrument used to indicate and control the liquid level in industrial process measurement and control systems. At present, there is no unified calibration device for the calibration of liquid level meters. The basic method is to place the calibrated liquid level meter in a water storage container with a certain liquid level and read the displayed value. Then use a standard scale to measure the exact value of the liquid level in the water storage container and compare and analyze the two.

[0003] An inaccurate level meter will affect the measurement structure during use, so the accuracy of the level meter will be affected after a period of use. For example, the UHZ-58 / C series magnetic level meter will be affected by the weakening of magnetism and needs to be tested and calibrated after long-term use. When using the basic method mentioned above, multiple measurements and calibrations are required, which is inconvenient to operate. Moreover, the level meter is only compared with the standard level scale by visual observation for calibration, which is not easy to compare and thus prone to errors. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a liquid level meter calibration device to solve the problem of errors caused by naked eye observation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A liquid level gauge calibration device comprises a water storage tank, a calibration water tank and a liquid level gauge body, a water level control assembly is installed on the side of the calibration water tank, a standard scale is installed on the calibration water tank, a pipe column is connected to the calibration water tank, a magnetic float is installed inside the pipe column, a magnetic block is slidably connected to the surface of the pipe column, a bidirectional laser transmitter is installed on the magnetic block, a connecting pipe is installed on the side of the calibration water tank, the connecting pipe is connected to the liquid level gauge body, and a clamp is installed on the side of the calibration water tank.

[0007] Preferably, a mounting seat is fixedly mounted on the connecting pipe, a switch valve is mounted on the mounting seat, a conversion head is detachably connected to the mounting seat, and the level meter body is connected to the calibration water tank via the conversion head.

[0008] Preferably, the clamp includes a support plate, on which a driving motor is fixedly mounted, and the driving motor is connected to a bidirectional screw rod, on which two threaded sleeves are threadedly connected, and the threaded sleeves slide on the support rod through a slider, and the front side of the threaded sleeves is fixedly connected to a clamping plate for clamping the liquid level meter body.

[0009] Preferably, the water level control component includes a controller, which is electrically connected to an inlet pump and a drain pump, the water inlet end of the inlet pump is connected to a water storage tank, the water outlet end of the inlet pump is connected to a calibration water tank, the water inlet end of the drain pump is connected to the calibration water tank, and the water outlet end of the drain pump is connected to the water storage tank.

[0010] In summary, the beneficial effects of the utility model are:

[0011] First, the utility model provides a liquid level gauge calibration device. During calibration, lasers are emitted from both sides of the laser emitter. The light emitted from one side can be the same as the liquid level scale displayed on the standard scale, and the other side can irradiate the liquid level gauge body. Since there is no obstacle to block it, it can be intuitively seen whether the measurement of the liquid level gauge body is standard, which is convenient for comparison and marking along the light, thereby achieving better calibration. At the same time, the standard scale and the laser emitter beam are set at the same height. If they are not at the same height, it indicates that the calibration device itself has an error. The comparison between the two plays a self-checking role.

[0012] Second, the clamp can be used to quickly perform temporary fixed installation on the liquid level meter body, in which the support plate plays a supporting role. The driving motor can drive the bidirectional screw to rotate, thereby driving the threaded sleeve to move, thereby driving the clamp to clamp, which can quickly fix the liquid level meter body, and the installation and disassembly are very convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a basic structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the fixture of the utility model;

[0015] Figure 3 It is a cross-sectional view of the pipe column of the utility model.

[0016] Figure numerals: 1. water storage tank; 2. calibration water tank; 3. liquid level meter body; 4. water level control assembly; 401. controller; 402. water inlet pump; 403. drain pump; 5. standard scale; 6. pipe column; 7. magnetic float; 8. magnetic block; 9. bidirectional laser transmitter; 10. connecting pipe; 11. clamp; 1101. support plate; 1102. drive motor; 1103. bidirectional screw rod; 1104. threaded sleeve; 1105. splint; 12. mounting seat; 13. conversion head. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] like Figure 1 - Figure 3 As shown, the utility model provides a liquid level gauge calibration device, including a water storage tank 1, a calibration water tank 2 and a liquid level gauge body 3, a water level control component 4 is installed on the side of the calibration water tank 2, a standard scale 5 is installed on the calibration water tank 2, the calibration water tank 2 is connected to a pipe column 6, a magnetic float 7 is installed inside the pipe column 6, a magnetic block 8 is slidably connected to the surface of the pipe column 6, a bidirectional laser transmitter 9 is installed on the magnetic block 8, a connecting pipe 10 is connected to the side of the calibration water tank 2, the connecting pipe 10 is connected to the liquid level gauge body 3, and a clamp 11 is installed on the side of the calibration water tank 2.

[0020] When in use, the liquid level meter body 3 is calibrated, the water tank 1 is used to store water, and the water level control component 4 can be used to move the water in the water tank 1 into the calibration water tank 2. The standard scale 5 set in the calibration water tank 2 plays the role of a standard liquid level meter. When the calibration water tank 2 is filled with water, the standard scale 5 displays a standard scale. The liquid level meter body 3 can be clamped and fixed by a clamp 11, and the bottom is connected to the calibration water tank 2 by a connecting pipe 10, so that the liquid level in the calibration water tank 2 can be measured, and the liquid level meter body 3 is compared with the standard scale 5. The set pipe column 6, magnetic float 7 and magnetic block 8 can be used to measure the liquid level. The buoyancy automatically lifts up the laser emitter, which is normally the same height as the liquid level on the standard scale 5. Therefore, during calibration, the laser emitter emits lasers on both sides. The light emitted from one side can be the same as the liquid level scale displayed on the standard scale 5, and the other side can irradiate the liquid level meter body 3. Since there is no obstacle blocking it, it is very intuitive to see whether the measurement of the liquid level meter body 3 is standard, and it is convenient to mark along the left side of the light, thereby playing a better calibration role. At the same time, the standard scale 5 is set to be at the same height as the laser emitter beam. When they are not at the same height, it indicates that an error has occurred. The comparison between the two plays a self-checking role.

[0021] The connecting pipe 10 is fixedly mounted with a mounting seat 12, a switch valve is mounted on the mounting seat 12, a conversion head 13 is detachably connected to the mounting seat 12, and the level meter body 3 is connected to the calibration water tank 2 via the conversion head 13. The conversion head 13 can be used to adapt to different specifications of the level meter body 3 for connection, the conversion head 13 can be threadedly mounted on the mounting seat 12 and can be disassembled, and the switch valve is arranged on the mounting seat 12 for switch control.

[0022] The clamp 11 includes a support plate 1101, on which a driving motor 1102 is fixedly installed, and the driving motor 1102 is driven and connected to a bidirectional screw rod 1103, on which two threaded sleeves 1104 are threadedly connected, and the threaded sleeves 1104 slide on the support rod through a slider, and the front of the threaded sleeves 1104 is fixedly connected to a clamping plate 1105 for clamping the liquid level meter body 3. Due to the complete installation method, the liquid level meter body 3 needs to be flange-mounted, and multiple bolts need to be installed, which is very troublesome to install and disassemble. The present solution uses the clamp 11 to quickly perform temporary fixed installation of the liquid level meter body 3, wherein the support plate 1101 plays a supporting role, and the driving motor 1102 can drive the bidirectional screw rod 1103 to rotate, thereby driving the threaded sleeves 1104 to move, thereby driving the clamping plate 1105 to clamp, and can quickly fix the liquid level meter body 3, and the installation and disassembly are very convenient and quick.

[0023] The water level control component 4 includes a controller 401, and the controller 401 is electrically connected to a water inlet pump 402 and a water discharge pump 403. The water inlet end of the water inlet pump 402 is connected to the water storage tank 1, and the water outlet end of the water inlet pump 402 is connected to the calibration water tank 2. The water inlet end of the water discharge pump 403 is connected to the calibration water tank 2, and the water outlet end of the water discharge pump 403 is connected to the water storage tank 1. The controller 401 is used for control, and water can be added to the calibration water tank 2 by turning on the water inlet pump 402, and water can be discharged from the calibration water tank 2 by using the water discharge pump 403, so that the water level in the calibration water tank 2 can be controlled, and different water levels can be measured and calibrated.

[0024] Working principle: When in use, the liquid level meter body 3 is mounted on the mounting seat 12, and the controller 401 is used for control. By turning on the water inlet pump 402, water can be added to the calibration water tank 2, and the drainage pump 403 can be used to drain the calibration water tank 2, so that the water level in the calibration water tank 2 can be controlled, so that different water levels can be measured and calibrated. The water storage tank 1 is used to store water, and the water level control component 4 can be used to move the water in the water storage tank 1 to the calibration water tank 2. The standard scale 5 set in the calibration water tank 2 acts as a standard liquid level meter. Water is added to the calibration water tank 2. When the liquid level meter body 3 is compared with the standard scale 5, the laser emitter emits lasers on both sides. The light emitted from one side can be the same as the liquid level scale displayed on the standard scale 5, and the other side can irradiate the liquid level meter body 3. Since there is no obstacle blocking it, it is very intuitive to see whether the measurement of the liquid level meter body 3 is standard, and it is convenient to mark along the light, so as to play a better calibration role. At the same time, the standard scale 5 set before the detection is at the same height as the laser emitter ray. If they are not at the same height, it indicates that an error has occurred. The comparison between the two plays a self-checking role.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A liquid level gauge calibration device, comprising a water storage tank (1), a calibration water tank (2) and a liquid level gauge body (3), characterized in that: A water level control assembly (4) is installed on the side of the calibration water tank (2); a standard scale (5) is installed on the calibration water tank (2); the calibration water tank (2) is connected to a pipe column (6); a magnetic float (7) is installed inside the pipe column (6); a magnetic block (8) is slidably connected to the surface of the pipe column (6); a bidirectional laser transmitter (9) is installed on the magnetic block (8); a connecting pipe (10) is installed on the side of the calibration water tank (2); the connecting pipe (10) is connected to the liquid level meter body (3); and a clamp (11) is installed on the side of the calibration water tank (2).

2. A liquid level gauge calibration device according to claim 1, characterized in that: A mounting seat (12) is fixedly mounted on the connecting pipe (10), a switch valve is mounted on the mounting seat (12), a conversion head (13) is detachably connected to the mounting seat (12), and the level meter body (3) is connected to the calibration water tank (2) via the conversion head (13).

3. A liquid level gauge calibration device according to claim 1, characterized in that: The clamp (11) comprises a support plate (1101), a driving motor (1102) is fixedly mounted on the support plate (1101), the driving motor (1102) is drivingly connected to a bidirectional screw rod (1103), two threaded sleeves (1104) are threadedly connected to the bidirectional screw rod (1103), and the threaded sleeves (1104) slide on the support rod via a slider, and a clamping plate (1105) for clamping the liquid level meter body (3) is fixedly connected to the front of the threaded sleeve (1104).

4. A liquid level gauge calibration device according to claim 1, characterized in that: The water level control component (4) comprises a controller (401), wherein the controller (401) is electrically connected to a water inlet pump (402) and a water outlet pump (403), wherein the water inlet end of the water inlet pump (402) is connected to a water storage tank (1), the water outlet end of the water inlet pump (402) is connected to a calibration water tank (2), the water inlet end of the water outlet pump (403) is connected to the calibration water tank (2), and the water outlet end of the water outlet pump (403) is connected to the water storage tank (1).

Images