Metal tube float flowmeter with easy access

Abstract

The utility model discloses a metal pipe float flowmeter convenient to overhaul relates to flowmeter equipment technical field, including metal outer tube, the metal outer tube top is equipped with the top cover, the top cover top is equipped with the instrument connection improvement spare, the instrument connection improvement spare top is connected with display instrument, the display instrument bottom is equipped with the guide rod, the guide rod outer wall bottom is equipped with the taper block and the float in proper order, the metal outer tube inner chamber is equipped with the inner tube, the inner tube inner wall is equipped with the limit ring, and one end of limit ring is equipped with the fixed top rod in the inner tube inner wall and is connected with screw thread. The utility model improves the overhaul efficiency.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of flow meter equipment, specifically a metal tube float flow meter that is easy to maintain. Background Technology

[0002] In industrial production and various fluid control scenarios, accurate measurement of fluid flow rate is crucial for ensuring stable and efficient operation of the production process and achieving precise control. Metal tube float flow meters, as a common flow measurement instrument, are widely used in multiple industries due to their relatively simple structure, low cost, and applicability to a certain range of fluid measurements.

[0003] However, traditional metal tube float flowmeters have revealed numerous problems in practical use, severely impacting their measurement performance, lifespan, and ease of maintenance. In terms of measurement accuracy, the internal tube structure of traditional flowmeters is poorly designed, with inadequate inner wall smoothness and a lack of effective limiting and guiding devices. This makes the float prone to swaying and deviation as it moves up and down with the fluid flow, resulting in the float's position failing to accurately reflect the actual flow rate. Consequently, this leads to significant measurement errors and fails to meet the high accuracy requirements of production scenarios. For example, in some precision chemical production processes, even minute deviations in flow rate can lead to unstable product quality, and traditional flowmeters struggle to meet the accuracy requirements of such processes.

[0004] In terms of inspection and maintenance, the structural design of traditional metal tube float flowmeters makes the maintenance process extremely cumbersome. The connections between its components are mostly fixed or difficult to disassemble. When the flowmeter malfunctions or requires regular maintenance, a significant amount of time and manpower is often needed to disassemble and reassemble the components. Furthermore, due to the compact internal structure and limited space, maintenance personnel are prone to damaging other normal components during operation due to limited visibility and inconvenience, further increasing maintenance costs and time. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a metal tube float flowmeter that is easy to maintain, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A metal tube float flowmeter that is easy to maintain includes a metal outer tube, a top cover on the top of the metal outer tube, an instrument connection component on the top of the top cover, a display instrument connected to the top of the instrument connection component, a guide rod embedded at the bottom of the display instrument, a conical block and a float sequentially arranged on the bottom of the outer wall of the guide rod, an inner tube in the inner cavity of the metal outer tube, a limiting ring on the inner wall of the inner tube, and a fixing rod at one end of the limiting ring and threadedly connected to the inner wall of the inner tube.

[0007] Preferably, a branch pipe is provided at one end of the bottom of the metal outer tube, and the branch pipe is in communication with the inner cavity of the metal outer tube.

[0008] Preferably, a connecting pipe is connected to one end of the bottom of the inner tube and the other end of the bottom of the outer metal tube.

[0009] Preferably, both the connecting pipe and the branch pipe are provided with a connecting flange at one end.

[0010] Preferably, the guide rod, the conical block, and the float are all connected by threads.

[0011] Preferably, the top cover is threaded to the top of the metal outer tube, and the top of the top cover is threaded to the bottom of the instrument connecting part.

[0012] Preferably, one end of the limiting ring is provided with a circular block.

[0013] In summary, this technical solution has the following main advantages: In this invention, the top cover and the top of the metal outer tube, as well as the top of the top cover and the bottom of the instrument connection component, are all connected by threads. This detachable connection method allows for quick and convenient disassembly of various components when the flow meter needs maintenance, without the need for complex tools, greatly shortening maintenance time. For example, when the display instrument malfunctions, simply unscrew the top cover and the instrument connection component to remove the display instrument for repair or replacement, improving maintenance efficiency. Both the connecting pipe and the branch pipe are equipped with connecting flanges at one end. This standardized connection method allows the flow meter to be easily connected to piping systems of different specifications and materials, improving the flow meter's versatility. Whether in new projects or when modifying existing piping systems, the flow meter can be installed quickly and accurately, reducing installation time and costs. Attached Figure Description

[0014] Figure 1 This is an isometric schematic diagram of the overall structure of this utility model; Figure 2 This is a partial isometric schematic diagram of the structure of this utility model; Figure 3 This is an isometric schematic diagram of the inner tube and limiting ring structure of this utility model; Figure 4 This is an isometric schematic diagram of the limiting ring and fixed top rod structure of this utility model.

[0015] Figure descriptions: 10. Metal outer tube; 11. Top cover; 12. Instrument connection modification; 13. Display instrument; 14. Guide rod; 15. Conical block; 16. Float; 17. Inner tube; 18. Connecting flange; 19. Limiting ring; 20. Fixed top rod; 101. Branch pipe; 171. Connecting pipe; 191. Round block. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Example like Figures 1 to 4 As shown, a metal tube float flowmeter that is easy to maintain includes a metal outer tube 10, a top cover 11 on the top of the metal outer tube 10, an instrument connection component 12 on the top of the top cover 11, a display instrument 13 connected to the top of the instrument connection component 12, a guide rod 14 embedded at the bottom of the display instrument 13, a conical block 15 and a float 16 sequentially arranged on the bottom of the outer wall of the guide rod 14, an inner tube 17 in the inner cavity of the metal outer tube 10, a limiting ring 19 on the inner wall of the inner tube 17, and a fixing rod 20 threadedly connected to one end of the limiting ring 19 to the inner wall of the inner tube 17.

[0018] A branch pipe 101 is provided at one end of the bottom of the metal outer tube 10, and the branch pipe 101 is connected to the inner cavity of the metal outer tube 10.

[0019] One end of the inner tube 17 is inserted through the bottom of the outer metal tube 10, and the other end is connected to a connecting tube 171.

[0020] Both the connecting pipe 171 and the branch pipe 101 are provided with a connecting flange 18 at one end.

[0021] The guide rod 14, the conical block 15, and the float 16 are all connected by threads.

[0022] The top cover 11 is threaded to the top of the metal outer tube 10, and the top of the top cover 11 is threaded to the bottom of the instrument connecting part 12.

[0023] One end of the limiting ring 19 is provided with a circular block 191.

[0024] It should be noted that in this embodiment, the top cover 11 is installed on the top of the metal outer tube 10 via a threaded connection. An instrument connection component 12 is then installed on top of the top cover 11, also using a threaded connection. The display instrument 13 is then connected to the top of the instrument connection component 12.

[0025] The tapered block 15 and the float 16 are sequentially installed at the bottom of the guide rod 14 via a threaded connection. Then, the top of the guide rod 14 is embedded in the bottom of the display instrument 13. A limiting ring 19 is installed on the inner wall of the inner tube 17. One end of the limiting ring 19 has a round block 191, and the other end of the limiting ring 19 is fixed to the top rod 20 via a threaded connection, so that the fixed top rod 20 is fixed to the inner wall of the inner tube 17. The limiting ring 19 and the fixed top rod 20 work together to limit the movement range of the float 16.

[0026] The working principle of this utility model is as follows: When fluid flows from connecting pipe 171 into inner pipe 17, the fluid flows upward and impacts float 16. Float 16 is acted upon by three forces: gravity, buoyancy, and the impact force of the fluid. Gravity is vertically downward, and its magnitude depends on the mass of float 16 itself; buoyancy is vertically upward, and according to Archimedes' principle, its magnitude is equal to the weight of the fluid displaced by float 16; the impact force of the fluid is in the same direction as the fluid flow, i.e., vertically upward, and its magnitude is related to the fluid velocity and flow rate.

[0027] When the fluid flow rate is low, the impact force of the fluid is small, and the net force on float 16 is downward, causing float 16 to descend. As the fluid flow rate gradually increases, the impact force of the fluid also gradually increases. When the impact force of the fluid reaches equilibrium with the resultant force of the weight and buoyancy of float 16, float 16 will stabilize at a certain height. The greater the flow rate, the higher float 16 rises; conversely, the smaller the flow rate, the lower float 16 falls.

[0028] The change in position of float 16 causes guide rod 14 to move up and down, and guide rod 14 transmits the position information of float 16 to display instrument 13. Display instrument 13 is equipped with corresponding sensors and conversion circuits, which can convert the displacement signal of guide rod 14 into an electrical signal, and after processing, display the fluid flow rate value in digital or pointer form.

[0029] The limiting ring 19 and the fixed top rod 20 limit the range of motion of the float 16. When the fluid flow rate is too high or abnormal conditions occur, they prevent the float 16 from rising excessively and damaging the display instrument 13 or other components, while also ensuring the normal operation and measurement accuracy of the flow meter.

[0030] Since the top cover 11 and the top of the metal outer tube 10, and the top of the top cover 11 and the bottom of the instrument connecting part 12 are all connected by threads, and the guide rod 14, the cone block 15, and the float 16 are also connected by threads, these parts can be easily disassembled when maintenance is required, and the internal parts can be inspected, cleaned, or replaced, which greatly improves the convenience and efficiency of maintenance.

[0031] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. A metal tube float flowmeter that is easy to maintain, characterized in that, The device includes a metal outer tube (10), a top cover (11) on the top of the metal outer tube (10), an instrument connection part (12) on the top of the top cover (11), a display instrument (13) connected to the top of the instrument connection part (12), a guide rod (14) embedded at the bottom of the display instrument (13), a conical block (15) and a float (16) sequentially arranged at the bottom of the outer wall of the guide rod (14), an inner tube (17) in the inner cavity of the metal outer tube (10), a limiting ring (19) on the inner wall of the inner tube (17), and a fixing rod (20) threadedly connected to one end of the limiting ring (19) on the inner wall of the inner tube (17).

2. The easily maintainable metal tube float flowmeter according to claim 1, characterized in that, The metal outer tube (10) has a branch tube (101) at one end of its bottom, and the branch tube (101) is connected to the inner cavity of the metal outer tube (10).

3. The easily maintainable metal tube float flowmeter according to claim 2, characterized in that, The inner tube (17) is connected to a connecting tube (171) at one end of its bottom and at the other end of its bottom, which is also connected to the metal outer tube (10).

4. The easily maintainable metal tube float flowmeter according to claim 3, characterized in that, Both the connecting pipe (171) and the branch pipe (101) are provided with a connecting flange (18) at one end.

5. A metal tube float flowmeter for easy maintenance according to claim 1, characterized in that, The guide rod (14) is threadedly connected to the conical block (15) and the float (16).

6. A metal tube float flowmeter for easy maintenance according to claim 1, characterized in that, The top cover (11) is threaded to the top of the metal outer tube (10), and the top of the top cover (11) is threaded to the bottom of the instrument connection part (12).

7. A metal tube float flowmeter for easy maintenance according to claim 1, characterized in that, One end of the limiting ring (19) is provided with a round block (191).

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