Metal tube float flowmeter with easy installation and maintenance

Abstract

The utility model discloses a metal pipe float flowmeter convenient to installation maintenance relates to metal pipe float flowmeter technical field, including metal pipe mechanism, the inside bushing of metal pipe mechanism has the float fixed establishment, the outside screw of metal pipe mechanism is connected with display output mechanism, the utility model solves the metal pipe float flowmeter of present now needs to dismantle regularly, and the problem that the float can exist slide jam, the utility model passes through the screw fixing and dismounting of metal pipe mechanism and float fixed establishment, and magnetic float force balance will be stable in a position for measuring, and the movable bushing of upper stopper and lower stopper in two groups of flange connecting pieces makes the whole disassembly of float fixed establishment can be realized to the rotation dismounting flange connecting piece, through the setting of guide rod, the movable bushing of corresponding magnetic float of guide rod upper narrow lower wide makes when magnetic float moves up not to be hindered, prevents magnetic float jam.

Description

Technical Field

[0001] This utility model relates to the technical field of metal tube float flowmeters, specifically a metal tube float flowmeter that is easy to install and maintain. Background Technology

[0002] Metal tube float flowmeter is a variable area flow measurement instrument based on buoyancy and throttling principles. It is mainly used to measure the instantaneous flow of gas and liquid. It features high pressure resistance, high temperature resistance, and corrosion resistance. The metal tube is mostly made of stainless steel or Hastelloy, making it suitable for high pressure and high temperature conditions.

[0003] Modern metal tube float flowmeters require regular disassembly and cleaning of the cone tube and float to remove dirt and scale adhering to the inner wall. Neutral detergents can be used to avoid scratching the inner wall of the cone tube with hard objects. At the same time, the metal tube float may slip and get stuck during the upward floating process, causing the float to become stuck.

[0004] To address the aforementioned issues, a metal tube float flowmeter that is easy to install and maintain is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a metal tube float flow meter that is easy to install and maintain. It solves the problem in the background technology that current metal tube float flow meters require regular disassembly and cleaning of the cone tube and float to remove dirt and scale attached to the inner wall. Neutral detergents can be used to avoid scratching the inner wall of the cone tube with hard objects. At the same time, the metal tube float may slip and get stuck during the upward floating process, causing the float to get stuck.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a metal tube float flow meter that is easy to install and maintain, comprising a metal tube mechanism, a float fixing mechanism sleeved inside the metal tube mechanism, and a display output mechanism screwed to the outside of the metal tube mechanism. The metal tube mechanism includes a metal tube fitting, and flange connectors are screwed to both ends of the metal tube fitting. The float fixing mechanism includes an upper stop and a lower stop respectively movably engaged in two sets of flange connectors. A guide rod is inserted between the upper stop and the lower stop. The guide rod is a cylinder that is narrower at the top and wider at the bottom. A magnetic float is movably sleeved on the guide rod. A conical channel is opened inside the metal tube fitting corresponding to the movement trajectory of the magnetic float. The conical channel is an inverted cone that is wider at the top and narrower at the bottom.

[0007] Preferably, the metal pipe fitting is externally fixed with a positioning frame, and the two ends of the metal pipe fitting are provided with threaded grooves corresponding to the flange connectors.

[0008] Preferably, the flange connector includes a threaded connector that is threaded into a threaded groove, and a flange is fixedly provided at one end of the threaded connector.

[0009] Preferably, one end of the upper stop is configured as a bevel fitting, which matches the shape of the inner opening of the flange.

[0010] Preferably, one end of the guide rod is inserted into the lower stop, a limit plate is fixedly provided at one end of the guide rod, and an insertion rod is fixedly provided at one end of the limit plate. The insertion rods are arranged in four groups in a circular array.

[0011] Preferably, the display output mechanism includes a sleeve that fits around the outer ring of the metal tube, the sleeve being fitted with the positioning frame, and a screw groove being provided on one side of the sleeve.

[0012] Preferably, the float fixing mechanism further includes a fixing frame fixedly disposed on one side of the sleeve.

[0013] Preferably, the display output mechanism further includes a display that is screwed to one side of the mounting bracket.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a metal tube float flow meter that is easy to install and maintain. The medium is fixed and disassembled via screws on the metal tube mechanism and the float fixing mechanism. The medium flows in from the lower end of the conical channel and out from the upper end. When the flange connector at the lower end is connected to an external pipe, a filter screen needs to be added in between. During flow, the magnetic float is subjected to upward thrust and buoyancy, while simultaneously experiencing downward gravity. When these three forces reach equilibrium, the magnetic float stabilizes at a certain position. The upper and lower stop devices are movable within the two sets of flange connectors, allowing the entire float fixing mechanism to be disassembled simply by rotating and disassembling the flange connectors. This facilitates maintenance and solves the problem of regularly disassembling and cleaning the conical tube and float of current metal tube float flow meters to remove dirt and scale adhering to the inner wall. Neutral detergents can be used, avoiding scratching the inner wall of the conical tube with hard objects.

[0015] 2. The present invention provides a metal tube float flow meter that is easy to install and maintain. By setting a guide rod, which is narrow at the top and wide at the bottom, and corresponding to the movable sleeve of the magnetic float, the magnetic float can move upward without obstruction, preventing the magnetic float from getting stuck. This solves the problem that the float may slide and get stuck during the upward floating process of the current metal tube float flow meter, causing the float to get stuck. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the metal tube mechanism of this utility model; Figure 4This is a schematic diagram showing the disassembled structure of the metal tube mechanism and the float fixing mechanism of this utility model. Figure 1 ; Figure 5 This is a schematic diagram showing the disassembled structure of the metal tube mechanism and the float fixing mechanism of this utility model. Figure 2 .

[0017] In the diagram: 1. Metal pipe mechanism; 11. Metal pipe fitting; 111. Positioning frame; 112. Threaded groove; 113. Conical channel; 12. Flange connector; 121. Flange fitting; 122. Threaded connector; 2. Float fixing mechanism; 21. Upper stop; 211. Inclined assembly; 22. Lower stop; 23. Guide rod; 231. Limiting plate; 232. Insert rod; 24. Magnetic float; 3. Display output mechanism; 31. Display; 32. Fixing bracket; 33. Sleeve bracket; 331. Screw groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0020] Combination Figure 1 This utility model discloses a metal tube float flowmeter that is easy to install and maintain. It includes a metal tube mechanism 1, a float fixing mechanism 2 is sleeved inside the metal tube mechanism 1, and a display output mechanism 3 is screwed to the outside of the metal tube mechanism 1. The metal tube mechanism 1 includes a metal tube fitting 11, and flange connectors 12 are screwed to both ends of the metal tube fitting 11. The float fixing mechanism 2 includes an upper stop 21 and a lower stop 22 that are respectively movably engaged in the two sets of flange connectors 12. A guide rod 23 is inserted between the upper stop 21 and the lower stop 22. The guide rod 23 is a cylinder that is narrow at the top and wide at the bottom. A magnetic float 24 is movably sleeved on the guide rod 23. A conical channel 113 is opened inside the metal tube fitting 11 corresponding to the movement trajectory of the magnetic float 24. The conical channel 113 is an inverted cone that is wide at the top and narrow at the bottom.

[0021] Specifically, the flow rate is measured by shifting the built-in magnetic float 24 in the metal pipe fitting 11. The medium flows in from the lower end and out from the upper end of the conical channel 113. When the flange connection 12 at the lower end is connected to the external pipe, a filter screen needs to be added in between. During the flow, the magnetic float 24 is subjected to an upward thrust and buoyancy. At the same time, the magnetic float 24 is subjected to a downward gravity. When these three forces reach equilibrium, the magnetic float 24 will stabilize at a certain position. The conical channel 113 on the inner wall of the metal pipe fitting 11 is narrower at the bottom and wider at the top. The larger the flow rate, the stronger the upward thrust. The higher the equilibrium position of the magnetic float 24, the smaller the flow rate. The lower the equilibrium position of the magnetic float 24, the more magnetic the magnetic float 24 becomes, which is to achieve non-contact signal transmission. The height of the magnetic float 24 is measured by magnetic coupling or sensor sensing in the display output mechanism 3. The upper stop 21 and the lower stop 22 are movably connected in the two sets of flange connectors 12, so that the float fixing mechanism 2 can be completely disassembled by rotating and disassembling the flange connectors 12, which is convenient for maintenance. At the same time, the guide rod 23 is narrow at the top and wide at the bottom, corresponding to the movable connection of the magnetic float 24, so that the magnetic float 24 moves upward without obstruction and prevents the magnetic float 24 from getting stuck.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example 1: Combination Figures 2-5 The metal pipe fitting 11 is fixedly provided with a positioning frame 111. The two ends of the metal pipe fitting 11 are provided with threaded grooves 112 corresponding to the flange connectors 12. The positioning frame 111 provides positioning support for the display output mechanism 3. The threaded grooves 112 allow the two flange connectors 12 to be rotated and disassembled.

[0024] The flange connector 12 includes a threaded connector 122 that is threaded inside the threaded groove 112. One end of the threaded connector 122 is fixedly provided with a flange 121. The flange 121 is fixed to the external pipe with bolts. The threaded connector 122 is threadedly connected to the metal pipe fitting 11 to achieve detachable fixing. A rubber ring is placed between the metal pipe fitting 11 and the flange connector 12 to enhance the sealing performance.

[0025] One end of the upper stopper 21 is configured as a slanted fitting 211, which matches the inner opening shape of the flange 121. The matching of the slanted fitting 211 with the flange 121 enables the upper stopper 21 to be pressurized and fixed between the metal pipe 11 and the flange connector 12.

[0026] One end of the guide rod 23 is inserted into the lower stop 22. A limit plate 231 is fixedly installed at one end of the guide rod 23. An insert rod 232 is fixedly installed at one end of the limit plate 231. There are four sets of insert rods 232 arranged in a circular array. The limit plate 231 achieves sealing and filling between the guide rod 23 and the upper stop 21, preventing the medium from rushing into the upper stop 21. The insert rods 232 ensure that the fixed direction of the upper stop 21 and the guide rod 23 remains unchanged, preventing the rotation of the flange connector 12 from causing the guide rod 23 to deviate.

[0027] Example 2: Combination Figure 2 The display output mechanism 3 includes a sleeve 33 that fits around the outer ring of the metal pipe 11. The sleeve 33 fits into the positioning frame 111. A screw groove 331 is provided on one side of the sleeve 33. Screws are fixed in the screw groove 331 to achieve a fixed connection between the sleeve 33 and the metal pipe 11. The fixed position of the display output mechanism 3 is restricted and positioned by the positioning frame 111, so that the display output mechanism 3 can be fixed back in its original position after disassembly, thereby reducing the measurement result error.

[0028] The float fixing mechanism 2 also includes a fixing frame 32 fixedly installed on one side of the sleeve 33. The fixing frame 32 is welded to the sleeve 33 and provides a fixing space for the display 31.

[0029] The display output mechanism 3 also includes a display 31 that is screwed to one side of the mounting bracket 32. The display 31 has a built-in sensor to display the measurement results of the metal tube float flowmeter.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal tube float flowmeter that is easy to install and maintain, comprising a metal tube mechanism (1), characterized in that: The metal tube mechanism (1) is internally fitted with a float fixing mechanism (2), and the metal tube mechanism (1) is externally screwed with a display output mechanism (3). The metal tube mechanism (1) includes a metal tube (11), and flange connectors (12) are screwed to both ends of the metal tube (11). The float fixing mechanism (2) includes an upper stop (21) and a lower stop (22) that are respectively movably engaged in the two sets of flange connectors (12). A guide rod (23) is inserted between the upper stop (21) and the lower stop (22). The guide rod (23) is a cylinder that is narrow at the top and wide at the bottom. A magnetic float (24) is movably sleeved on the guide rod (23). A conical channel (113) is opened inside the metal tube (11) corresponding to the movement trajectory of the magnetic float (24). The conical channel (113) is an inverted cone that is wide at the top and narrow at the bottom.

2. The metal tube float flowmeter according to claim 1, characterized in that: The metal pipe fitting (11) is fixedly provided with a positioning frame (111), and the two ends of the metal pipe fitting (11) are provided with threaded grooves (112) corresponding to the flange connector (12).

3. The metal tube float flowmeter according to claim 2, characterized in that: The flange connector (12) includes a threaded connector (122) that is threaded inside a threaded groove (112), and a flange (121) is fixedly provided at one end of the threaded connector (122).

4. The metal tube float flowmeter according to claim 1, characterized in that: One end of the upper stop (21) is configured as a slanted fitting (211), which matches the shape of the inner opening of the flange (121).

5. A metal tube float flowmeter for easy installation and maintenance according to claim 1, characterized in that: One end of the guide rod (23) is inserted into the lower stop (22). A limit plate (231) is fixedly installed at one end of the guide rod (23). A plug rod (232) is fixedly installed at one end of the limit plate (231). There are four sets of plug rods (232) arranged in a circular array.

6. The metal tube float flowmeter according to claim 1, characterized in that: The display output mechanism (3) includes a sleeve (33) fitted around the outer ring of the metal pipe (11). The sleeve (33) is in contact with the positioning frame (111). A screw groove (331) is provided on one side of the sleeve (33), and the screw is fixed in the screw groove (331) to realize the fixed connection between the sleeve (33) and the metal pipe (11).

7. A metal tube float flowmeter for easy installation and maintenance according to claim 6, characterized in that: The float fixing mechanism (2) also includes a fixing frame (32) fixedly installed on one side of the sleeve (33).

8. A metal tube float flowmeter that is easy to install and maintain according to claim 7, characterized in that: The display output mechanism (3) also includes a display (31) that is screwed to one side of the mounting bracket (32).

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