Metal tube float flowmeter with electronic indication function
By adopting an electronic indication system in the metal tube float flowmeter, using the Hall measurement module and CPU module to process data, and displaying the flow value through the liquid crystal display screen, the problems of low pointer adjustment accuracy and large indication error in the prior art are solved, and higher flow indication accuracy and convenience are achieved.
Patent Information
- Application Number
- CN202323507067.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The existing metal tube float flowmeter has low adjustment accuracy at the pointer position, making it difficult to accurately indicate the flow rate, and there may be errors in pointer indication flow rate and LCD screen display flow data.
The metal tube float flowmeter that uses electronic indication includes a display motherboard assembly arranged outside the flowmeter body, including a power supply module, a processing module and a graphic dot matrix liquid crystal display screen. The Hall measurement module measures the liquid flow, the CPU module processes the data, and measures the flow value through the LCD display.
Through electronic indication, the use of mechanical pointers is reduced, errors are reduced, and the accuracy and convenience of flow indication are improved.
Smart Images
Figure CN222774043U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of float flowmeters, in particular to a metal tube float flowmeter with electronic indication. Background Art
[0002] The float of the metal tube float flowmeter is in the measuring tube. As the flow rate changes, the float moves up and down. At a certain position, the buoyancy of the float is balanced with the weight of the float. At this time, the circulation annular gap area between the float and the orifice plate (or cone tube) remains constant. The annular gap area is proportional to the rising height of the float, that is, the rising position of the float in the measuring tube represents the size of the flow rate. Usually, the metal tube float flowmeter drives the pointer to indicate the flow rate through magnetic coupling, and measures the float position to indicate the flow rate through the Hall sensor. The LCD screen displays the flow data. However, in actual applications, the pointer position adjustment accuracy is low, and it is difficult to accurately indicate the flow rate. In addition, there may be errors between the flow rate indicated by the pointer and the flow data displayed on the LCD screen. Therefore, a metal tube float flowmeter with electronic indication is proposed to solve the above problems. Utility Model Content
[0003] The utility model aims to solve the shortcomings in the prior art and proposes a metal tube float flowmeter with electronic indication.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A metal tube float flowmeter with electronic indication, comprising a flowmeter body and a display mainboard assembly arranged outside the flowmeter body, the display mainboard assembly comprising a power module arranged in a shell and a processing module powered by the power module, the processing module comprising a CPU module, a Hall measurement module, a signal output module and a graphic dot matrix liquid crystal display screen; the graphic dot matrix liquid crystal display screen is arranged outside the shell, and the Hall measurement module is arranged on the inner wall of the flowmeter body; the output end of the Hall measurement module is connected to the input end of the CPU module, the output end of the CPU module is connected to the input ends of the signal output module and the graphic dot matrix liquid crystal display screen, the output content of the signal output module includes a measured flow value, an output current, an RS485 signal, an output upper and lower limit alarm and a fault alarm prompt, and is displayed on the graphic dot matrix liquid crystal display screen.
[0006] Furthermore, the content displayed on the graphic dot matrix liquid crystal display screen also includes a virtual pointer measuring flow value.
[0007] Furthermore, the processing module also includes a liquid crystal display screen backlight module, the input end of the liquid crystal display screen backlight module is connected to the output end of the CPU module, and is also connected to the graphic dot matrix liquid crystal display screen.
[0008] The beneficial effects of the utility model are:
[0009] During use, the Hall measurement module measures the liquid flow and inputs the electrical signal to the CPU module, which then outputs the processed data. No mechanical pointer is used, and the error in the indication process is small, making it easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a system block diagram of a metal tube float flowmeter with electronic indication proposed by the utility model;
[0011] Figure 2 This is a structural schematic diagram of a metal tube float flowmeter with electronic indication proposed by the utility model;
[0012] Figure 3 The utility model discloses a structural schematic diagram of a graphic dot matrix liquid crystal display screen in a metal tube float flowmeter with electronic indication.
[0013] In the figure: 1. power module; 2. signal output module; 3. CPU module; 4. Hall measurement module; 5. LCD backlight module; 6. graphic dot matrix LCD; 7. display main board assembly; 71. shell; 8. flow meter body. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0015] Reference Figure 1-3 , a metal tube float flowmeter with electronic indication, comprising a flowmeter body 8 and a display motherboard assembly 7 arranged on the outside of the flowmeter body 8, the display motherboard assembly 7 comprising a power module 1 arranged in a shell 71 and a processing module powered by the power module 1, the processing module comprising a CPU module 3, a Hall measurement module 4, a signal output module 2 and a graphic dot matrix liquid crystal display screen 6; the graphic dot matrix liquid crystal display screen 6 is arranged on the outside of the shell 71, and the Hall measurement module 4 is arranged on the inner wall of the flowmeter body 8; the output end of the Hall measurement module 4 is connected to the input end of the CPU module 3, the output end of the CPU module 3 is connected to the input end of the signal output module 2 and the graphic dot matrix liquid crystal display screen 6, the output content of the signal output module 2 includes a measured flow value, an output current, an RS485 signal, an output upper and lower limit alarm and a fault alarm prompt, and is displayed on the graphic dot matrix liquid crystal display screen 6.
[0016] The display content of the graphic dot matrix liquid crystal display screen 6 also includes a virtual pointer measuring flow value.
[0017] The processing module further comprises a liquid crystal display screen backlight module 5 , the input end of the liquid crystal display screen backlight module 5 is connected to the output end of the CPU module 3 , and is also connected to the graphic dot matrix liquid crystal display screen 6 .
[0018] During use, the Hall measurement module measures the liquid flow and inputs the electrical signal to the CPU module, which then outputs the processed data. No mechanical pointer is used, and the error in the indication process is small, making it easy to use.
Claims
1. A metal tube float flowmeter with electronic indication, comprising a flowmeter body (8) and a display mainboard assembly (7) arranged outside the flowmeter body (8), characterized in that: The display mainboard assembly (7) comprises a power module (1) arranged in a housing (71) and a processing module powered by the power module (1), wherein the processing module comprises a CPU module (3), a Hall measurement module (4), a signal output module (2) and a graphic dot matrix liquid crystal display screen (6); the graphic dot matrix liquid crystal display screen (6) is arranged outside the housing (71), and the Hall measurement module (4) is arranged on the inner wall of the flow meter body (8); the output end of the Hall measurement module (4) is connected to the input end of the CPU module (3), and the output end of the CPU module (3) is connected to the input end of the signal output module (2) and the graphic dot matrix liquid crystal display screen (6); the output content of the signal output module (2) comprises a measured flow value, an output current, an RS485 signal, an output upper and lower limit alarm and a fault alarm prompt, and is displayed on the graphic dot matrix liquid crystal display screen (6).
2. The electronically indicated metal tube float flowmeter according to claim 1, characterized in that: The display content of the graphic dot matrix liquid crystal display screen (6) also includes a virtual pointer measuring flow value.
3. The electronically indicated metal tube float flowmeter according to claim 1, characterized in that: The processing module further comprises a liquid crystal display screen backlight module (5), the input end of the liquid crystal display screen backlight module (5) being connected to the output end of the CPU module (3) and connected to the graphic dot matrix liquid crystal display screen (6).