Self-balancing symmetrical integrated orifice flowmeter and its processing technology

Abstract

The present invention discloses a self-balancing, symmetrical, integrated orifice plate flowmeter and its processing technology, belonging to the technical field of flowmeters. The self-balancing, symmetrical, integrated orifice plate flowmeter comprises a connecting pipe, an orifice plate, and a support mechanism. The support mechanism of the present invention facilitates supporting the connecting pipe by providing a connecting assembly, an adjusting assembly, and a supporting assembly, thereby improving the stability of the connecting pipe during operation, thereby improving the accuracy of measurement results, reducing vibration and deformation of the connecting pipe under fluid erosion, and improving the durability of the flowmeter. The overall height of the support mechanism can also be adjusted according to the height of the connecting pipe, so that it can adapt to different installation environments.

Description

Technical Field

[0001] The present invention belongs to the technical field of flow meters, and in particular relates to a self-balancing symmetrical integrated orifice flow meter and a processing technology thereof. Background Art

[0002] In the field of fluid measurement technology, orifice flowmeters, as a common flow measurement device, have been widely used. Traditional orifice flowmeters typically consist of an orifice plate, a pressure tapping tube, and connecting pipes. They operate by throttling the fluid through the orifice plate and calculating the flow rate using the pressure difference before and after throttling. With the continuous advancement of industrial technology, orifice flowmeters have seen significant improvements in structural design, measurement accuracy, stability, and reliability.

[0003] However, the existing orifice flowmeters still have some shortcomings in design and use. Traditional orifice flowmeters lack a supporting mechanism. On the one hand, the orifice flowmeter is prone to displacement due to vibration or external force interference during installation and use, resulting in increased measurement errors. On the other hand, unstable support may also cause changes in fluid flow state, increase eddy currents and vibrations, and further affect the accuracy of the measurement results. Summary of the Invention

[0004] The purpose of the present invention is to provide a self-balancing and symmetrical integrated orifice flowmeter and its processing technology, which are used to solve the technical problems in the prior art that traditional orifice flowmeters lack a support mechanism. On the one hand, the orifice flowmeter is easily displaced due to vibration or external force interference during installation and use, resulting in increased measurement errors. On the other hand, unstable support may also cause changes in the fluid flow state, increase eddy currents and vibrations, and further affect the accuracy of the measurement results.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A self-balancing, symmetrical, integrated orifice flowmeter comprises: a connecting pipe; an orifice plate located inside the connecting pipe, for re-rectifying the flow velocity distribution curve of the upstream fluid, having four throttling holes and a self-balancing rectification structure, wherein the self-balancing rectification structure is located at the center of the orifice plate; a supporting mechanism comprising: a connecting assembly sleeved on the connecting pipe; an adjusting assembly connected to the connecting assembly; and a supporting assembly connected to the adjusting assembly, for cooperating with the connecting assembly and the adjusting assembly to support the connecting pipe.

[0007] Preferably, the connecting assembly includes: a first curved plate; a second curved plate; two first bolts for connecting the first curved plate and the second curved plate; a mounting seat mounted on the first curved plate; a mounting plate; a second bolt for connecting the mounting plate and the mounting seat; and two fixing columns, respectively mounted on opposite side surfaces of the mounting seat and the mounting plate.

[0008] Preferably, the adjustment assembly includes: a fixing cylinder installed between the mounting seat and the mounting plate; an adjustment rod slidably connected to the fixing cylinder; and a tightening bolt threadedly connected to the fixing cylinder, with its rod portion in contact with the adjustment rod.

[0009] Preferably, the adjustment component also includes: two strip grooves, respectively opened on the two side surfaces of the fixed cylinder, the two fixed columns are respectively located in the two strip grooves, and the fixed columns are slidingly connected to the strip grooves; two supporting column grooves, respectively opened on the two side surfaces of the fixed cylinder, respectively connected to the two strip grooves, for supporting the fixed columns.

[0010] Preferably, the supporting assembly includes: a first supporting rack fixedly connected to the lower end of the adjusting rod; and a second supporting rack detachably connected to the first supporting rack.

[0011] Preferably, the supporting assembly further includes: a first connecting block, integrally formed with the first supporting rack; a second connecting block, integrally formed with the second supporting rack and matching with the first connecting block; and two connecting members for connecting the first connecting block and the second connecting block.

[0012] Preferably, the first bracket and the second bracket are both provided with semicircular through grooves; the supporting assembly further includes: two cleaning brushes, respectively mounted on the first bracket and the second bracket; two first insertion rods, both mounted on the first bracket; two second insertion rods, both mounted on the second bracket, and after the first bracket and the second bracket are docked, the second insertion rods and the first insertion rods form a hexagonal prism.

[0013] Preferably, the connecting member includes: a connecting tube; a threaded rod fixedly connected to the connecting tube and used to connect the first connecting block and the second connecting block; a hexagonal prism groove opened on the connecting tube and plugged into the hexagonal prism composed of the first plug rod and the second plug rod.

[0014] Preferably, the self-balancing symmetrical integrated orifice flowmeter also includes: a first pressure-taking tube, installed on the circumferential surface of the connecting tube and connected to the interior of the connecting tube; a second pressure-taking tube, installed on the circumferential surface of the connecting tube and connected to the interior of the connecting tube; two flanges, respectively installed at both ends of the connecting tube, and a plurality of flange holes are provided on the flanges.

[0015] The processing technology of the self-balancing symmetrical integrated orifice flowmeter includes the following steps: step 1, through a casting process, processing the metal material into an integral blank including a connecting pipe, a first pressure-taking pipe and a second pressure-taking pipe, an orifice plate and a flange; step 2, grinding the inner and outer walls of the integral blank, accurately expanding and chamfering the throttle hole, and drilling the flange hole on the flange; step 3, using two first bolts to install the first curved plate and the second curved plate on the connecting pipe; step 4, placing the fixing tube between the mounting plate and the mounting seat, and connecting the mounting plate and the mounting seat by a second bolt; step 5, using two connecting pieces to connect the first support rack and the second support rack.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The support mechanism of the present invention is convenient for supporting the connecting pipe by setting a connecting component, an adjusting component and a supporting component, thereby improving the stability of the connecting pipe during operation, thereby improving the accuracy of the measurement results, and reducing the vibration and deformation of the connecting pipe under fluid flushing, thereby improving the durability of the flow meter; the overall height of the support mechanism can also be adjusted according to the height of the connecting pipe, which can adapt to different installation environments.

[0018] 2. The supporting assembly in the present invention is provided with a detachable first supporting rack and a second supporting rack, and both the first supporting rack and the second supporting rack are provided with a semicircular through groove. After the first supporting rack and the second supporting rack are docked, a circular groove matching the connecting pipe can be formed, and a cleaning brush is provided inside. This design enables the user to easily clean the outer surface of the connecting pipe, effectively remove attached dirt and impurities, reduce their corrosion and wear on the connecting pipe, thereby ensuring the long-term stable operation of the flow meter.

[0019] 3. The supporting assembly in the present invention can be reassembled so that the fixed tube and the adjusting rod can be used as temporary handles, making it easy to lift the connecting tube and move the device. The connection method of the supporting assembly in the device is flexible, which enables the device to be used in more application scenarios, thereby improving its practicality and applicability.

[0020] 4. The self-balancing symmetrical integrated orifice flowmeter in the present invention can re-rectify the flow velocity distribution curve of the upstream fluid by setting an orifice plate, four throttling holes and a self-balancing rectification structure, which can reduce eddy currents, vibrations and signal noise, greatly improve the flow field stability, and thus improve the accuracy of flow measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A three-dimensional diagram of the self-balancing, symmetrical, integrated orifice flowmeter of the present invention;

[0023] Figure 2 An exploded view of the connecting pipe and the orifice plate in the present invention;

[0024] Figure 3 is a three-dimensional diagram of the support mechanism of the present invention;

[0025] Figure 4 For the present invention Figure 3 Exploded diagram;

[0026] Figure 5 Schematic diagram of the assembly structure of the mounting plate, the second bolt and the fixing column in the present invention;

[0027] Figure 6 A three-dimensional diagram of the self-balancing, symmetrical, integrated orifice flowmeter of the present invention in a clean state;

[0028] Figure 7 is a schematic diagram of the support mechanism in another state of the present invention;

[0029] Figure 8 An exploded view of the first supporting rack, the first connecting block, the second supporting rack and the connecting member in the present invention;

[0030] Figure 9 A three-dimensional diagram of the self-balancing and symmetrical integrated orifice flowmeter of the present invention when being carried;

[0031] Reference numerals: 100, connecting pipe; 101, first pressure-taking pipe; 102, second pressure-taking pipe; 103, orifice plate; 104, throttle hole; 105, flange; 106, flange hole; 107, self-balancing rectifier structure; 200, supporting mechanism; 210, connecting assembly; 211, first curved plate; 212, second curved plate; 213, first bolt; 214, mounting seat; 215, mounting plate; 216, second bolt; 217, fixing column; 220 , adjusting assembly; 221, fixing tube; 222, strip groove; 223, support column groove; 224, adjusting rod; 225, tightening bolt; 230, supporting assembly; 231, first supporting rack; 232, first connecting block; 233, second supporting rack; 234, second connecting block; 235, connecting piece; 2351, connecting tube; 2352, threaded rod; 2353, hexagonal prism groove; 236, cleaning brush; 237, first plug rod; 238, second plug rod. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1: Figure 1-Figure 4 As shown, the self-balancing symmetrical integrated orifice flowmeter includes a connecting pipe 100, an orifice plate 103 and a supporting mechanism 200.

[0034] A first pressure-taking tube 101 and a second pressure-taking tube 102 are mounted on the connecting tube 100, both of which are in communication with the interior of the connecting tube 100. Flanges 105 are mounted on both ends of the connecting tube 100, each having multiple flange holes 106 formed therein. The flanges 105 and flange holes 106 facilitate connection of the connecting tube 100 to upstream and downstream pipelines.

[0035] Orifice plate 103 is located within connecting tube 100. Orifice plate 103 and connecting tube 100 are integrally formed and located between first pressure-taking tube 101 and second pressure-taking tube 102. Orifice plate 103 is used to re-rectify the flow velocity distribution curve of the upstream fluid. Orifice plate 103 has four throttle holes 104 and a self-balancing rectifier structure 107, which is located at the center of orifice plate 103. By symmetrically arranging four throttle holes 104, the flow field can be balanced, reducing eddy currents, vibration, and signal noise, greatly improving flow field stability. Self-balancing rectifier structure 107 is a solid hemispherical structure, and there is at least one self-balancing rectifier structure 107.

[0036] Specifically, by setting the orifice plate 103, the fluid can be guided to throttle during flow. At the same time, the four equivalent, evenly and symmetrically distributed throttling holes 104 have precisely processed sharp-angle guides, and have strict requirements and quality control on the surface processing accuracy and roughness of the adjustable throttling body. This design overcomes the right-angled burr-edged porous throttling devices currently on the market. Because it has no requirements on the processing accuracy of the holes and no processing sharp angles, the porous throttling body is easily deformed and worn after long-term fluid erosion, resulting in a large change in the β value after the porous cumulative wear and cannot be corrected, and the design defect that causes inaccurate measurement can maximize the elimination of the erosion and wear of the fluid on the adjustable throttling body, making its β value stable and unchanged, with long-term stability, which can meet the requirements of long-term operation of the device.

[0037] The design of the four throttling holes 104 in this self-balancing symmetrical integrated orifice flowmeter with equivalent and uniform distribution not only effectively reduces the large pressure loss caused by one hole, but also avoids the safety hazard caused by the reduction in the overall strength of the throttling component due to throttling with more holes. By increasing the thickness of the porous throttling body to improve its strength, the friction area and contact time between the fluid and the surface of the porous throttling body are further prolonged, thereby increasing the pressure loss, which is not conducive to energy saving.

[0038] like Figure 3 and Figure 4 As shown, the support mechanism 200 includes a connecting assembly 210, an adjusting assembly 220, and a supporting assembly 230. The connecting assembly 210 is sleeved on the connecting tube 100; the adjusting assembly 220 is connected to the connecting assembly 210; and the supporting assembly 230 is connected to the adjusting assembly 220. The supporting assembly 230 cooperates with the connecting assembly 210 and the adjusting assembly 220 to support the connecting tube 100.

[0039] Specifically, when in use, by installing the connecting component 210 on the connecting pipe 100, adjusting the distance between the connecting component 210 and the supporting component 230, the supporting component 230 is made to contact the ground, thereby supporting the connecting pipe 100 through the supporting mechanism 200, thereby improving the stability of the connecting pipe 100.

[0040] like Figure 4 and Figure 5 As shown, the connection assembly 210 includes a first curved plate 211 , a second curved plate 212 , two first bolts 213 , a mounting seat 214 , a mounting plate 215 , a second bolt 216 and two fixing columns 217 .

[0041] A first bolt 213 connects the first curved plate 211 and the second curved plate 212. An extension plate is provided at the head of the first bolt 213, allowing manual rotation of the first bolt 213 without tools. A mounting base 214 is mounted on the first curved plate 211; a second bolt 216 connects the mounting plate 215 to the mounting base 214; and two fixing posts 217 are mounted on opposing sides of the mounting base 214 and the mounting plate 215.

[0042] Specifically, when the first curved plate 211 and the second curved plate 212 need to be installed on the connecting pipe 100, the second curved plate 212 is placed on the connecting pipe 100, and then the first curved plate 211 is docked with the first curved plate 211 from the bottom of the connecting pipe 100. Finally, the first curved plate 211 and the second curved plate 212 are connected using two first bolts 213, so that the first curved plate 211 and the second curved plate 212 form a circular ring and are sleeved on the connecting pipe 100.

[0043] like Figure 3 、 Figure 4 、 Figure 7 and Figure 9 As shown, the adjustment assembly 220 includes a fixed cylinder 221, an adjustment rod 224, and a tightening bolt 225. The fixed cylinder 221 is mounted between the mounting base 214 and the mounting plate 215. A slot is defined in the fixed cylinder 221. The adjustment rod 224 is slidably connected to the slot in the fixed cylinder 221. The tightening bolt 225 is threadedly connected to the fixed cylinder 221, with the shaft of the tightening bolt 225 contacting the adjustment rod 224.

[0044] Specifically, when it is necessary to adjust the overall height of the adjustment component 220, the tightening bolt 225 is rotated counterclockwise to separate the tightening bolt 225 from the adjustment rod 224, so that the adjustment rod 224 can move along the fixed tube 221, thereby facilitating the increase of the overall height of the adjustment component 220. After the height adjustment is completed, the tightening bolt 225 is rotated clockwise to make the tightening bolt 225 abut against the adjustment rod 224, so that the adjustment rod 224 moves relative to the fixed tube 221, thereby fixing the height of the adjustment component 220.

[0045] like Figure 3 and Figure 4 As shown, the adjustment assembly 220 further includes two strip grooves 222 and two support column grooves 223. The two strip grooves 222 are respectively provided on the two side surfaces of the fixed cylinder 221, and the two fixed columns 217 are respectively located in the two strip grooves 222, and the fixed columns 217 are slidably connected to the strip grooves 222; the two support column grooves 223 are respectively provided on the two side surfaces of the fixed cylinder 221, and are respectively connected to the two strip grooves 222, for supporting the fixed columns 217.

[0046] Specifically, when the fixing tube 221 is placed vertically and the two fixing columns 217 are respectively located in the two supporting column grooves 223 , the fixing tube 221 can support the two fixing columns 217 , and further support the mounting seat 214 and the first arc-shaped plate 211 .

[0047] like Figure 3 and Figure 4 As shown, the supporting assembly 230 includes a first supporting rack 231 and a second supporting rack 233. The first supporting rack 231 is fixedly connected to the lower end of the adjustment rod 224; the second supporting rack 233 is detachably connected to the first supporting rack 231.

[0048] Specifically, by providing the first supporting rack 231 and the second supporting rack 233 , the contact area between the supporting mechanism 200 and the ground is increased, thereby improving the supporting effect on the connecting pipe 100 .

[0049] Working principle: During specific use, the flange 105 on the connecting pipe 100 is connected to the upstream and downstream pipelines respectively by using multiple mounting bolts, and then the external flow calculator is connected to the first pressure taking pipe 101 and the second pressure taking pipe 102.

[0050] Then, by moving the fixing cylinder 221, the two fixing columns 217 are respectively located in the two supporting column grooves 223. Then, by rotating the tightening bolt 225 counterclockwise, the tightening bolt 225 is no longer in contact with the adjusting rod 224, so that the adjusting rod 224 can move along the fixing cylinder 221. Then, by moving the adjusting rod 224 downward, the first supporting rack 231 and the second supporting rack 233 are driven to move downward, thereby making the first supporting rack 231 and the supporting rack contact the ground. Then, by rotating the tightening bolt 225 clockwise, the rod of the tightening bolt 225 is in contact with the adjusting rod 224, so that the adjusting rod 224 moves relative to the fixing cylinder 221, thereby fixing the height of the adjusting assembly 220. At this time, the supporting mechanism 200 supports the connecting pipe 100, thereby improving the stability of the connecting pipe 100.

[0051] Finally, the flow rate is measured by a self-balancing, symmetrical, integrated orifice plate flowmeter and flow calculator.

[0052] Example 2: Figure 6-Figure 8 As shown, when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is:

[0053] The support assembly 230 further includes a first connecting block 232, a second connecting block 234, and two connecting members 235. The first connecting block 232 is integrally formed with the first support frame 231; the second connecting block 234 is integrally formed with the second support frame 233 and matches the first connecting block 232; and the two connecting members 235 are used to connect the first connecting block 232 and the second connecting block 234.

[0054] Specifically, when in use, the first connecting block 232 and the second connecting block 234 can be connected together through the two connecting pieces 235, thereby connecting the first bracket 231 and the second bracket 233 together; the first bracket 231 and the second bracket 233 can also be separated by separating the two connecting pieces 235 from the first connecting block 232 and the second connecting block 234.

[0055] like Figure 7 and Figure 8 As shown, both the first and second brackets 231, 233 are provided with semicircular through-grooves. The support assembly 230 also includes two cleaning brushes 236, two first insertion rods 237, and two second insertion rods 238. The two cleaning brushes 236 are mounted on the first and second brackets 231, 233, respectively; the two first insertion rods 237 are mounted on the first bracket 231; and the two second insertion rods 238 are mounted on the second bracket 233. When the first and second brackets 231, 233 are docked, the second insertion rods 238 and the first insertion rods 237 form a hexagonal prism.

[0056] When the first supporting rack 231 and the second supporting rack 233 are docked, a circular groove is formed between them. The circular groove matches the connecting pipe 100, and the two cleaning brushes 236 are located inside the circular groove.

[0057] like Figure 9 As shown, the connecting member 235 includes a connecting tube 2351, a threaded rod 2352, and a hexagonal prism groove 2353. The threaded rod 2352 is fixedly connected to the connecting tube 2351 and is used to connect the first connecting block 232 and the second connecting block 234. The hexagonal prism groove 2353 is provided on the connecting tube 2351 and is plugged into the hexagonal prism formed by the first insertion rod 237 and the second insertion rod 238.

[0058] Specifically, when the first support rack 231 and the second support rack 233 are docked, the first insertion rod 237 and the second insertion rod 238 will form a hexagonal prism. Then, by putting the connecting tube 2351 on the hexagonal prism formed by the first insertion rod 237 and the second insertion rod 238, the first insertion rod 237 and the second insertion rod 238 can be connected together, and then the first support rack 231 and the second support rack 233 can be connected together.

[0059] Working principle: When the connecting pipe 100 needs to be cleaned, the tightening bolt 225 is first rotated counterclockwise so that the tightening bolt 225 no longer abuts against the adjusting rod 224, so that the adjusting rod 224 can move along the fixing tube 221.

[0060] Then, rotate the two first bolts 213 counterclockwise in sequence so that the first curved plate 211 and the second curved plate 212 are no longer tightly connected, so that the first curved plate 211 and the second curved plate 212 can move along the connecting tube 100, and the first curved plate 211 contacts the first sampling tube. Then, rotate the two first bolts 213 clockwise in sequence so that the first curved plate 211 and the second curved plate 212 are tightly connected to the connecting tube 100.

[0061] Then, by rotating the two connecting cylinders 2351 in sequence, the threaded rod 2352 is separated from the first connecting block 232 and the second connecting block 234, so that the first bracket 231 and the second bracket 233 are separated. By placing the second bracket 233 on the connecting pipe 100 (at this time, the second bracket 233 is located between the flow calculator and the connecting pipe 100), and then rotating the connecting cylinder 2351, the adjusting rod 224 and the first bracket 231 are driven to rotate, so that the first bracket 231 and the second bracket 233 are docked, and the first insertion rod 237 and the second insertion rod 238 will form a hexagonal prism. Then, by putting the connecting cylinder 2351 on the hexagonal prism formed by the first insertion rod 237 and the second insertion rod 238, the first insertion rod 237 and the second insertion rod 238 can be connected together, and then the first bracket 231 and the second bracket 233 are connected together.

[0062] Then, the tightening bolt 225 is rotated clockwise to make the tightening bolt 225 contact the adjusting rod 224 , so that the adjusting rod 224 cannot move along the fixing tube 221 .

[0063] At this time, by pushing and pulling the two connecting cylinders 2351 along the axial direction of the connecting tube 100, the first supporting rack 231 and the supporting rack are driven to move back and forth horizontally. At this time, the fixed cylinder 221 also moves back and forth horizontally under the combined influence of the strip groove 222 and the fixed column 217. When the first supporting rack 231 and the second supporting rack 233 move, they drive the two cleaning brushes 236 to move, thereby causing the cleaning brushes 236 to clean the outer surface of the connecting tube 100.

[0064] like Figure 9 As shown, when the connecting pipe 100 needs to be disconnected from any pipeline and when the device needs to be moved, the first curved plate 211 and the second curved plate 212 can be put on the connecting pipe 100 according to the above operating steps, and then the first bracket 231 and the second bracket 233 can also be put on the connecting pipe 100. By using the fixing tube 221 and the adjusting rod 224 as temporary handles, the connecting pipe 100 can be easily lifted and the device can be easily moved.

[0065] Example 3: A process for manufacturing a self-balancing symmetrical integrated orifice flowmeter, comprising the following steps:

[0066] Step 1: Select a metal material that meets the design specifications and process the selected metal material into an integral blank including a connecting pipe 100, a first pressure-taking pipe 101, a second pressure-taking pipe 102, an orifice plate 103, and a flange 105 through a precision casting process;

[0067] Step 2: Grind the inner and outer walls of the entire blank to ensure that the dimensional accuracy and surface finish of all components meet the design requirements, accurately expand and chamfer the throttle hole 104, and drill the flange hole 106 on the flange plate 105;

[0068] Step 3: Use two first bolts 213 to install the first curved plate 211 and the second curved plate 212 on the connecting pipe 100;

[0069] Step 4: Place the fixing cylinder 221 between the mounting plate 215 and the mounting seat 214 , and connect the mounting plate 215 and the mounting seat 214 with the second bolt 216 so that the two fixing columns 217 are respectively located in the two supporting column grooves 223 ;

[0070] Step 5: Use two connectors 235 to connect the first support rack 231 and the second support rack 233;

[0071] Step 6: Reinforce the connection between the first pressure-taking tube 101, the second pressure-taking tube 102 and the connecting tube 100, and reinforce the connection between the flange 105 and the connecting tube 100. Welding can be selected as the reinforcement method.

[0072] Step 7. After completing all processing and assembly steps, conduct an overall inspection and test on the self-balancing symmetrical integrated orifice plate 103 flowmeter to check whether the connections of each component are firm and stable. If necessary, adjust and optimize the self-balancing symmetrical integrated orifice plate 103 flowmeter to ensure its performance reaches the best state.

[0073] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

[0074] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Self-balancing symmetrical integrated orifice flowmeter, characterized by: include: Connecting pipe (100); An orifice plate (103) is located in the connecting pipe (100) and is used to re-rectify the flow velocity distribution curve of the upstream fluid. The orifice plate (103) has four throttle holes (104) and a self-balancing rectification structure (107). The self-balancing rectification structure (107) is located at the center of the orifice plate (103); A support mechanism (200) comprising: A connecting assembly (210) is sleeved on the connecting pipe (100); an adjusting component (220) connected to the connecting component (210); a supporting assembly (230), connected to the adjusting assembly (220), and used to cooperate with the connecting assembly (210) and the adjusting assembly (220) to support the connecting pipe (100); The supporting assembly (230) includes: A first supporting rack (231) is fixedly connected to the lower end of the adjusting rod (224); A second supporting rack (233) detachably connected to the first supporting rack (231); Two cleaning brushes (236) are respectively mounted on the first supporting rack (231) and the second supporting rack (233); The regulating assembly (220) includes: A fixing cylinder (221) is mounted between the mounting seat (214) and the mounting plate (215); An adjusting rod (224) is slidably connected to the fixing cylinder (221); A tightening bolt (225) is threadedly connected to the fixing cylinder (221), and its rod portion is in contact with the adjusting rod (224); Two strip grooves (222) are respectively provided on two side surfaces of the fixing cylinder (221), and the two fixing columns (217) are respectively located in the two strip grooves (222), and the fixing columns (217) are slidably connected to the strip grooves (222); Two supporting column grooves (223) are respectively provided on two side surfaces of the fixing cylinder (221), and are respectively communicated with the two strip-shaped grooves (222) for supporting the fixing column (217).

2. The self-balancing symmetrical integrated orifice flowmeter according to claim 1, characterized in that: The connection component (210) includes: a first curved plate (211); a second curved plate (212); Two first bolts (213) for connecting the first curved plate (211) and the second curved plate (212); A mounting seat (214) mounted on the first curved plate (211); Mounting plate (215); A second bolt (216) for connecting the mounting plate (215) and the mounting seat (214); Two fixing columns (217) are respectively mounted on opposite sides of the mounting seat (214) and the mounting plate (215).

3. The self-balancing symmetrical integrated orifice flowmeter according to claim 2, characterized in that: The supporting assembly (230) further includes: A first connecting block (232) is integrally formed with the first supporting frame (231); a second connecting block (234) formed integrally with the second supporting rack (233) and matching the first connecting block (232); Two connecting pieces (235) are used to connect the first connecting block (232) and the second connecting block (234).

4. The self-balancing symmetrical integrated orifice flowmeter according to claim 3, characterized in that: The first supporting rack (231) and the second supporting rack (233) are both provided with a semicircular through groove; The supporting assembly (230) further includes: Two first insertion rods (237), both mounted on the first supporting frame (231); The two second insertion rods (238) are both mounted on the second support rack (233). After the first support rack (231) and the second support rack (233) are docked, the second insertion rods (238) and the first insertion rods (237) form a hexagonal prism.

5. The self-balancing symmetrical integrated orifice flowmeter according to claim 4, characterized in that: The connecting member (235) includes: Connecting tube (2351); a threaded rod (2352) fixedly connected to the connecting cylinder (2351) and used to connect the first connecting block (232) and the second connecting block (234); The hexagonal prism groove (2353) is provided on the connecting tube (2351) and is plugged into and fitted with the hexagonal prism body formed by the first insertion rod (237) and the second insertion rod (238).

6. The self-balancing symmetrical integrated orifice flowmeter according to claim 1, characterized in that: Also includes: A first pressure-taking pipe (101) is mounted on the circumferential surface of the connecting pipe (100) and is in communication with the interior of the connecting pipe (100); A second pressure-taking pipe (102) is installed on the circumferential surface of the connecting pipe (100) and is in communication with the interior of the connecting pipe (100); Two flanges (105) are respectively installed at both ends of the connecting pipe (100), and a plurality of flange holes (106) are formed on the flanges (105).

7. The processing technology of the self-balancing symmetrical integrated orifice flowmeter according to claim 1 is characterized in that: The following steps are involved: Step 1: Processing the metal material into an integral blank comprising a connecting pipe (100), a first pressure-taking pipe (101), a second pressure-taking pipe (102), an orifice plate (103), and a flange (105) through a casting process; Step 2: grinding the inner and outer walls of the whole blank, accurately expanding and chamfering the throttle hole (104), and drilling the flange hole (106) on the flange plate (105); Step 3: Use two first bolts (213) to install the first curved plate (211) and the second curved plate (212) on the connecting pipe (100); Step 4: Place the fixing cylinder (221) between the mounting plate (215) and the mounting seat (214), and connect the mounting plate (215) and the mounting seat (214) via a second bolt (216); Step 5: Use two connecting pieces (235) to connect the first supporting rack (231) and the second supporting rack (233).

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