High-pressure integrated temperature and pressure compensation horizontal metal tube float flowmeter

Abstract

The utility model discloses a high pressure type integrated temperature and pressure compensation horizontal type metal pipe float flowmeter which comprises a measuring assembly, a converter assembly, a long neck flange and a sensor assembly, the measuring assembly comprises a vertical pipe, a measuring pipe and a floater, the lower end of the vertical pipe is provided with a medium inlet and a medium outlet, and the measuring pipe is fixed in the vertical pipe; the floater is slidably connected in the measuring tube; the converter assembly is connected to the upper end of the vertical pipe. An indicator of the converter assembly is magnetically connected with the floater; the necks of the two long-neck flanges are respectively fixed on the peripheral sides, corresponding to the medium inlet and the medium outlet, of the vertical pipe; the sensor assembly comprises a pressure sensor and a temperature sensor; and the pressure sensor and the temperature sensor are respectively fixed on the outer walls of the two long-neck flanges and are electrically connected with the indicator. According to the utility model, when a process medium suddenly changes due to high temperature or high pressure, the pressure sensor and the temperature sensor can be operated to compensate measurement data or distortion data, so that the measurement accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of flow monitoring technology, and more specifically to a high-pressure integrated temperature and pressure compensated horizontal metal tube float flow meter. Background Technology

[0002] In the rapid development of science and technology, technological innovation plays an indispensable role in leading new types of scientific and technological productivity in the national economy. During users' production processes, when the process medium is high-pressure gas, the unpredictable changes in the process medium often cause distortion in the instrument's measurement results. To ensure the accuracy of measurements during the production process, a metal tube float flowmeter was developed.

[0003] Metal tube float flowmeters are pipe flow measurement instruments, and they can be installed in two ways: vertical and horizontal.

[0004] Currently, horizontally installed metal tube float flowmeters consist of two parts: a sensor and a converter. The sensor part comprises an input tube, an output tube, a riser, a measuring tube, a conical float, a lower limit ring, an upper limit ring, and an orifice plate. The input and output tubes are installed on the left and right sides of the lower end of the riser. The upper end of the measuring tube is fixedly connected to the upper end of the riser via a flange, and the lower end of the measuring tube is connected to the input tube. An outlet hole is opened at the upper end of the measuring tube. The lower limit ring and the upper limit ring are fixedly installed at the upper and lower ends of the measuring tube, respectively. The guide rods at the upper and lower ends of the conical float slide in cooperation with the lower limit ring and the upper limit ring, respectively. The orifice plate is fixedly installed inside the measuring tube and cooperates with the conical float.

[0005] Its working principle is as follows: the medium enters the measuring tube from the input tube and flows upward. The conical float is subjected to upward lifting force, buoyancy, and downward gravity. When these three forces are balanced, the conical float stops at a certain position. The conical float and the orifice plate form an annular flow surface. This annular flow surface has a certain relationship with the flow rate; the larger the area of ​​the annular flow surface, the larger the flow rate. The magnet in the conical float is coupled to the magnet on the rotating shaft of the converter, and the converter converts it into a flow rate value, which is indicated by the pointer scale or output as a 4-20mA current signal.

[0006] However, current horizontal metal tube float flowmeters suffer from reduced accuracy when measuring gas flow under sudden changes in high temperature and high pressure, leading to limitations in their application under specific process media.

[0007] Therefore, how to provide an integrated metal tube float flowmeter that can guarantee measurement accuracy under conditions of sudden changes in high temperature and high pressure gas is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] In view of this, the present invention provides a high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter, which can compensate for the instability or distortion of measurement data caused by sudden changes in pressure and temperature of the medium (gas) in the process pipeline on site through pressure and temperature sensors; thereby achieving the accuracy and stability of real-time measurement data.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter includes:

[0011] The measuring assembly includes a riser, a measuring tube, and a float. The lower outer wall of the riser has a medium inlet and a medium outlet. The measuring tube is coaxially fixed to the inner cavity of the riser and its lower side wall is correspondingly connected to the medium inlet. The float is slidably connected inside the measuring tube.

[0012] A converter assembly is detachably connected to the upper end of the riser; the converter assembly has an indicator for displaying a flow rate value, the indicator being magnetically connected to the float;

[0013] Two long-neck flanges are provided, with their necks fixed to the periphery of the corresponding medium inlet and medium outlet of the riser, respectively.

[0014] A sensor assembly, comprising a pressure sensor and a temperature sensor; the pressure sensor and the temperature sensor are respectively fixed to the outer walls of the two long-neck flanges and electrically connected to the indicator.

[0015] The beneficial effects of this utility model's technical solution are as follows: It adopts an integrated structure, eliminating the need for on-site assembly of components; only the long-neck flange needs to be connected to the pipeline. During use, when the process medium experiences sudden changes due to high temperature or high pressure, the temperature and pressure sensors directly transmit the data of these changes to the central processing unit (CPU). The CPU performs high-speed calculations, eliminating inaccurate data caused by sudden temperature and pressure changes, and then calculates the actual flow rate of the process medium from the accurate temperature and pressure data. Finally, the LCD screen on the indicator displays the real-time and cumulative flow rates of the actual process medium, along with the temperature and pressure values, thereby compensating for the measured data and ensuring measurement accuracy.

[0016] Preferably, the device further includes a connecting horizontal tube; the outer wall of the measuring tube has a flow hole, and the two ends of the connecting horizontal tube are respectively fixed to the periphery of the vertical tube corresponding to the medium inlet and the periphery of the measuring tube corresponding to the flow hole. By connecting the horizontal tube to the medium inlet and the flow hole, the medium enters the measuring tube from the medium inlet, pushes the float upward, overflows from the top of the measuring tube, and finally flows out from the medium outlet, ensuring stable and effective flow of the medium while ensuring effective measurement of the medium.

[0017] Preferably, a pressure sensor mounting base is welded to the outer wall of the long-neck flange corresponding to the medium inlet, and the pressure sensor is threadedly connected to the pressure sensor mounting base. This threaded connection between the pressure sensor and the pressure sensor mounting base allows for the replacement of pressure sensors with different flow ranges without disassembling the flow meter.

[0018] Preferably, a temperature sensor mounting base is welded to the outer wall of the long-neck flange corresponding to the medium outlet; the temperature sensor is threadedly connected to the temperature sensor mounting base. The detachable connection between the temperature sensor and the temperature sensor base allows for the replacement of temperature sensors with different ranges without disassembling the flow meter.

[0019] Preferably, the converter assembly includes a magnetic coupling tube; a sealing flange is welded to the upper end of the riser, and a cover flange is welded to the lower end of the magnetic coupling tube, the cover flange being screwed to the sealing flange; the magnet of the float is located inside the magnetic coupling tube and is magnetically coupled to the rotating shaft inside the indicator. The converter assembly and the measuring assembly can be installed by mating the sealing flange and the cover flange.

[0020] Preferably, a bracket is fixed to the outer wall of the upper end of the magnetic coupling tube, and the indicator is detachably connected to the bracket. Using a bracket to fix the indicator makes installation convenient and quick, and does not affect the measurement.

[0021] Preferably, a tapered tube is fixed to the inner wall of the measuring tube; the float includes a float body and an upper connecting rod, the float body is slidably connected inside the tapered tube, and there is a medium flow gap between the outer periphery of the float body and the inner wall of the tapered tube; the lower end of the upper connecting rod is vertically fixed to the top of the float body, and the upper end extends into the magnetic coupling tube; the magnet is embedded in the upper end of the upper connecting rod. As the float body floats up and down along the inner wall of the tapered tube, it changes the size of the flow gap, thereby changing the flow rate.

[0022] Preferably, the larger end of the tapered tube faces the magnetic coupling tube, and a float seat is fixed to the smaller end face. The float seat has multiple through holes communicating with the inner cavity of the measuring tube for medium flow. The float seat allows for medium flow while preventing the float from detaching from the tapered tube due to its own weight.

[0023] Preferably, a lower connecting rod is fixed to the lower end face of the float body, and the lower connecting rod extends through the float seat and into the measuring tube; the lower connecting rod and the upper connecting rod are coaxial. The upper and lower connecting rods can ensure the stability of the float during the up and down floating process, and prevent measurement distortion caused by the float tilting, thereby affecting the accuracy of the measurement data.

[0024] Preferably, a sealing plate is fixed to the bottom end of the riser.

[0025] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a high-pressure integrated temperature and pressure compensated horizontal metal tube float flow meter. It eliminates the need for users to assemble various other parts and components separately; it only requires assembly with the mating flange of the field pipeline. This fully demonstrates the product's compact overall structure, convenient installation, beautiful appearance, reliable performance, and high cost-effectiveness, while also possessing high market competitiveness. The pressure and temperature sensors directly transmit abruptly changing data to the central processor, compensating for instability or distortion in measurement data caused by sudden changes in the process pipeline medium (gas) due to high pressure and high temperature. This achieves the accuracy and stability of real-time measurement data. By connecting the horizontally arranged long-neck flange to the pipeline flange, it overcomes the limitations of vertical instruments during installation in high-temperature and high-pressure conditions of field process pipelines. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a front view of the float flowmeter provided by this utility model;

[0028] Figure 2 This is a top view of the float flowmeter provided by this utility model;

[0029] Figure 3 Left view of the float flowmeter provided by this utility model;

[0030] Figure 4 Provided by this utility model

[0031] Figure 5 for Figure 4 AA section view in the middle;

[0032] Figure 6 A schematic diagram of the float structure provided by this utility model.

[0033] in,

[0034] 1-Measuring component; 11-Riser; 12-Sealing flange; 13-Measuring tube; 14-Float; 141-Float body; 142-Upper connecting rod; 143-Lower connecting rod; 144-Float seat; 145-Guide rod; 146-Magnet; 147-Fastener; 15-Connecting horizontal tube; 16-Media inlet; 17-Media outlet; 18-Conical tube;

[0035] 2-Converter assembly; 21-Magnetic coupling tube; 22-Sealing flange; 23-Bracket; 24-Indicator;

[0036] 3-Long neck flange; 31-First mounting hole; 32-Second mounting hole;

[0037] 4-Electric conduit;

[0038] 5 - Pressure sensor; 51 - Pressure sensor mounting base;

[0039] 6-Temperature sensor; 61-Temperature sensor mounting bracket. Detailed Implementation

[0040] 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.

[0041] This utility model discloses a high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter, comprising:

[0042] Measurement component 1 includes a riser 11, a measuring tube 13, and a float 14. The lower end of the riser 11 has a medium inlet 16 and a medium outlet 17 on its outer wall. The measuring tube 13 is coaxially fixed in the inner cavity of the riser 11 and its lower end side wall is connected to the medium inlet 16. The float 14 is slidably connected inside the measuring tube 13.

[0043] Converter assembly 2 is detachably connected to the upper end of riser 11; converter assembly 2 has an indicator 24 for displaying flow value, and indicator 24 is magnetically connected to float 14;

[0044] Two long-neck flanges 3 are provided, and their necks are respectively fixed to the periphery of the medium inlet 16 and the medium outlet 17 of the riser 11.

[0045] The sensor assembly includes a pressure sensor 5 and a temperature sensor 6; the pressure sensor 5 and the temperature sensor 6 are respectively fixed to the outer walls of two long-neck flanges 3 and electrically connected to an indicator 24.

[0046] like Figures 1-3 As shown, the measuring component can measure the flow rate, the converter component can display the flow rate value, and the temperature sensor, pressure sensor, and indicator are all communicatively connected to the central processing unit. When the process medium experiences sudden changes in temperature or pressure, the temperature sensor and pressure sensor directly transmit the data of the sudden change to the central processing unit (CPU). The CPU performs high-speed calculations to eliminate the inaccurate data caused by the sudden changes in temperature and pressure, and then calculates the actual flow rate of the process medium from the real temperature and pressure data. Finally, the LCD screen on the indicator displays the real-time flow rate and cumulative flow rate of the actual process medium, while also displaying the temperature and pressure values.

[0047] To further optimize the above technical solution and ensure the integrity and aesthetics of the flow meter, a conduit is provided between the temperature sensor and the pressure sensor and the indicator. The conduit is used to run wires to achieve electrical connection between the pressure sensor and the temperature sensor and the indicator.

[0048] In some other specific embodiments, to ensure that the medium can directly enter the measuring tube from the medium inlet and that the medium will not diffuse in the riser, a connecting horizontal tube 15 is also included; the outer wall of the measuring tube 13 is provided with a flow hole, and the two ends of the connecting horizontal tube 15 are respectively fixed to the periphery of the riser 11 corresponding to the medium inlet 16 and the periphery of the measuring tube 13 corresponding to the flow hole.

[0049] The transitions between the connecting horizontal pipe and the inner wall of the vertical pipe and the outer wall of the measuring pipe are smooth, and the transition between the neck of the long neck flange and the outer wall of the vertical pipe is also smooth; the two long neck flanges and the connecting horizontal pipe are coaxial.

[0050] In this embodiment, a pressure sensor mounting base 51 is welded to the outer wall of the long-neck flange 3 corresponding to the medium inlet 16, and the pressure sensor 5 is threadedly connected to the pressure sensor mounting base 51. A temperature sensor mounting base 61 is welded to the outer wall of the long-neck flange 3 corresponding to the medium outlet 17; the temperature sensor 6 is threadedly connected to the temperature sensor mounting base 61.

[0051] like Figures 4-5 As shown, the ranges of the pressure and temperature sensors are selected based on the operating pressure and temperature provided by the user. The mounting base is welded onto the long-necked funnel, and the sensor is threadedly connected to the mounting base. During use, the sensor can be replaced or maintained without disassembling the flow meter.

[0052] To further optimize the above technical solution, the converter assembly 2 includes a magnetic coupling tube 21; a sealing flange 12 is welded to the upper end of the riser 11, and a cover flange 22 is welded to the lower end of the magnetic coupling tube 21, and the cover flange 22 is screwed to the sealing flange 12; the magnet 146 of the float 14 is located inside the magnetic coupling tube 21 and is magnetically coupled to the rotating shaft inside the indicator 24.

[0053] The converter assembly and the measuring assembly are connected by a flange, which makes installation convenient and reliable. To ensure the sealing performance between the converter assembly and the measuring assembly, an elliptical metal ring gasket is embedded between the cover flange and the sealing flange.

[0054] To further optimize the above technical solution and achieve reliable installation of the indicator, a bracket 23 is fixed on the outer wall of the upper end of the magnetic coupling tube 21, and the indicator 24 is detachably connected to the bracket 23.

[0055] In this embodiment, as Figure 6 As shown, a tapered tube 18 is fixed to the inner wall of the measuring tube 13; the float 14 includes a float body 141 and an upper connecting rod 142. The float body 141 is slidably connected inside the tapered tube 18, and there is a medium flow gap between the outer periphery of the float body 141 and the inner wall of the tapered tube 18; the lower end of the upper connecting rod 142 is vertically fixed to the top of the float body 141, and the upper end extends into the magnetic coupling tube 21; the magnet 146 is embedded in the upper end of the upper connecting rod 142. As the float body floats up and down inside the tapered tube, it changes the size of the medium flow gap, thereby adjusting the flow rate of the medium.

[0056] To further optimize the above technical solution, the large end of the tapered tube 18 faces the magnetic coupling tube 21, and a float seat 144 is fixed to the small end face. Multiple through holes are opened on the float seat 144 to connect the inner cavity of the measuring tube 13 for medium flow. The float seat can limit the lowest position of the float body and prevent the float body from sliding out of the tapered tube.

[0057] To further optimize the above technical solution, a raised edge is fixed to the outer wall of the bottom end of the float body, which can abut against the inner wall of the bottom end of the tapered tube. The raised edge prevents air from entering the tapered tube when not in use.

[0058] To further optimize the above technical solution and prevent the float from tilting during its up-and-down movement, a lower connecting rod 143 is fixed to the lower end face of the float body 141. The lower connecting rod 143 passes through the float seat 144 and extends into the measuring tube 13; the lower connecting rod 143 and the upper connecting rod 142 are coaxial. The coaxiality of the upper and lower connecting rods ensures the stability of the float during its up-and-down movement along the tapered tube and prevents flow distortion due to the tilting of the float body.

[0059] To further optimize the above technical solution, a guide rod 145 is provided inside the magnetic coupling tube 21, and the lower end of the guide rod 145 is connected to the upper end of the upper connecting rod 142 by a fastener 147.

[0060] Fasteners can also act as stoppers. During the up-and-down movement of the float, the fasteners can only allow the float to float between the upper end of the measuring tube and the bottom surface of the cover flange, thereby limiting the range of the float.

[0061] To further optimize the above technical solution, a sealing plate is fixed to the bottom end of the riser 11.

[0062] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0063] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter, characterized in that, include: The measuring component (1) includes a riser (11), a measuring tube (13), and a float (14). The lower end of the riser (11) has a medium inlet (16) and a medium outlet (17) on its outer wall. The measuring tube (13) is coaxially fixed in the inner cavity of the riser (11) and its lower end sidewall is connected to the medium inlet (16). The float (14) is slidably connected inside the measuring tube (13). A converter assembly (2) is detachably connected to the upper end of the riser (11); the converter assembly (2) has an indicator (24) for displaying flow rate values, the indicator (24) being magnetically connected to the float (14); the converter assembly (2) includes a magnetic coupling tube (21); a sealing flange (12) is welded to the upper end of the riser (11), and a cover flange (22) is welded to the lower end of the magnetic coupling tube (21), the cover flange (22) being screwed to the sealing flange (12); the magnet (146) of the float (14) is located inside the magnetic coupling tube (21) and is magnetically coupled to the rotating shaft inside the indicator (24); Two long-neck flanges (3) are provided, with their necks fixed to the periphery of the riser (11) at the corresponding medium inlet (16) and medium outlet (17), respectively. A pressure sensor mounting base (51) is welded to the outer wall of the long-neck flange (3) corresponding to the medium inlet (16). A temperature sensor mounting base (61) is welded to the outer wall of the long-neck flange (3) corresponding to the medium outlet (17). The long-neck flange (3) is connected to the pipeline. The sensor assembly includes a pressure sensor (5) and a temperature sensor (6); the pressure sensor (5) is threaded onto the pressure sensor mounting base (51); the temperature sensor (6) is threaded onto the temperature sensor mounting base (61); the pressure sensor (5) and the temperature sensor (6) are electrically connected to the indicator (24). A connecting horizontal tube (15) is provided; the outer wall of the measuring tube (13) is provided with a flow hole, and the two ends of the connecting horizontal tube (15) are respectively fixed to the periphery of the vertical tube (11) corresponding to the medium inlet (16) and the periphery of the measuring tube (13) corresponding to the flow hole; the connecting horizontal tube (15) and the inner wall of the vertical tube (11) and the outer wall of the measuring tube (13) are all smoothly transitioned, and the neck of the long neck flange (3) and the outer wall of the vertical tube (11) are also smoothly transitioned; the two long neck flanges (3) and the connecting horizontal tube (15) are coaxial.

2. The high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter according to claim 1, characterized in that, The upper outer wall of the magnetic coupling tube (21) is fixed with a bracket (23), and the indicator (24) is detachably connected to the bracket (23).

3. The high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter according to claim 1, characterized in that, The inner wall of the measuring tube (13) is fixed with a tapered tube (18); the float (14) includes a float body (141) and an upper connecting rod (142), the float body (141) is slidably connected in the tapered tube (18), and there is a medium flow gap between the outer periphery of the float body (141) and the inner wall of the tapered tube (18); the lower end of the upper connecting rod (142) is vertically fixed to the top of the float body (141), and the upper end extends into the magnetic coupling tube (21); the magnet (146) is embedded in the upper end of the upper connecting rod (142).

4. The high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter according to claim 3, characterized in that, The large end of the tapered tube (18) faces the magnetic coupling tube (21), and a float seat (144) is fixed on the small end face. Multiple through holes are opened on the float seat (144) to connect the inner cavity of the measuring tube (13) for medium flow.

5. The high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter according to claim 4, characterized in that, The lower end face of the float body (141) is fixed with a lower connecting rod (143), which passes through the float seat (144) and extends into the measuring tube (13); the lower connecting rod (143) and the upper connecting rod (142) are coaxial.

6. The high-pressure integrated temperature and pressure compensated horizontal metal tube float flowmeter according to claim 1, characterized in that, The bottom end of the riser (11) is fixed with a sealing plate.

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