Porous balance flow meter

Abstract

The utility model discloses a multi-hole balance flow meter, relates to balance flow meter technical field, including two straight pipe, the opposite side of two straight pipe is both fixed connection flange, the opposite side of two straight pipe is joint movable connection with the balance mechanism, the balance mechanism includes two ring chamber. According to the porous balance flow meter, the annular chamber, the pore plate sensor, the positioning block and the positioning groove are matched, and the holes which are annularly distributed and are in bilateral symmetry are formed in the middle of the pore plate sensor, so that the flocculation shear force and the formation of vortex can be greatly reduced, fluid is more uniformly distributed when passing through the pore plate sensor, and the flow rate is increased. The orifice plate sensor has the advantages that impact and abrasion of fluid to the orifice plate sensor are reduced, kinetic energy loss in the flowing process of the fluid is reduced, formation of a retention dead zone is reduced, the fluid can smoothly pass through the orifice plate sensor, blockage is avoided, the service life of equipment is prolonged, the maintenance cost of the equipment is reduced, and the accuracy and stability of flow measurement are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to balanced flowmeter technical field, especially relate to a porous balanced flowmeter. BACKGROUND

[0002] Flowmeter is the measuring device for measuring the instantaneous flow and cumulative total of fluid in the pipeline or open channel, and is the key equipment in the fields of industrial production, energy management and environmental monitoring. The porous balanced flowmeter is a flow measuring instrument designed based on the differential pressure principle, which optimizes the fluid flow field through the porous throttling structure, has the advantages of high measurement accuracy, strong anti-interference ability and wide application range, and is especially suitable for high-precision flow measurement under complex working conditions.

[0003] The utility model discloses a balanced flowmeter, including the connecting pipe, the top of connecting pipe is provided with the flowmeter, the right -hand member of connecting pipe is fixedly connected with the water pipe, the inside fixedly connected with the support plate of water pipe, the inside of support plate is provided with transmission rod, the surface fixed mounting of support plate has torsion spring. The fan blade rotates and drives the transmission rod to rotate, and then drives the rotating disc to rotate, when the rotating disc rotates, will push the blocking column to move, and then drive the sliding block to move, so as to open the baffle, the water of water part enters the connecting pipe, convenient for the constant measurement of the water in the water pipe, reduce the water discharge, be favorable to the flow of the flowmeter to the water even calculation, improve the uniformity of water pipe drainage, thereby improve the accuracy of flowmeter calculation, be favorable to the constant discharge of the water in the water pipe.

[0004] The prior art has the following problems:

[0005] The above-mentioned utility model can change the discharge amount according to the water pressure, but the fan will be entangled by foreign matters in the fluid during rotation, causing the internal pipe to be blocked, and it is not convenient to take out the balancing mechanism inside the pipe for maintenance. UTILITY MODEL CONTENTS

[0006] The utility model provides a porous balanced flowmeter to solve the problems in the above background art.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme:

[0008] A porous balanced flowmeter, comprising two straight pipes, a flange is fixedly connected to each opposite side of the two straight pipes, and a balancing mechanism is movably connected to the opposite sides of the two straight pipes.

[0009] The balance mechanism comprises two ring chambers, opposite sides of the two ring chambers are slidably connected to opposite sides of two straight pipes, opposite sides of the two ring chambers are jointly and slidably connected with a hole plate sensor, a middle portion of the hole plate sensor is provided with a plurality of holes arranged in a ring shape, and the holes are arranged in a left-right symmetrical manner.

[0010] Preferably, a sealing ring one is fixedly sleeved to a middle portion of an outer periphery of the hole plate sensor, a plurality of positioning blocks arranged in a ring shape are fixedly connected to opposite sides of the two ring chambers, a plurality of positioning grooves arranged in a ring shape are formed in the outer periphery of the hole plate sensor, and the positioning blocks are slidably connected to the inside of the positioning grooves.

[0011] Preferably, four fixing blocks two arranged in a ring shape are fixedly connected to the outer periphery of opposite sides of the two straight pipes, a bolt is slidably connected to a middle portion of the fixing block two, a nut is fixedly connected to the left side of the fixing block two on the left side, the bolt is threadedly connected to the inside of the nut, and a dismounting mechanism is slidably connected to opposite sides of the two straight pipes.

[0012] Preferably, the dismounting mechanism comprises a plug-in ring, the plug-in ring is slidably connected to a middle portion inside the straight pipe, plug-in grooves are formed in opposite sides of the two ring chambers, the plug-in ring is slidably connected to the inside of the plug-in grooves, two sliders arranged in a front-rear direction are fixedly connected to the side, away from the ring chamber, of the plug-in ring, a compression spring is fixedly connected to the side, away from the plug-in ring, of the slider, two fixing blocks one arranged in a front-rear direction are fixedly connected to a middle portion of the outer periphery of the straight pipe, and the side, away from the slider, of the compression spring is fixedly connected to the inside of the fixing block one.

[0013] Preferably, a connecting rod is fixedly connected to a middle portion of the side, away from the plug-in ring, of the slider, a push plate is fixedly connected to the side, away from the slider, of the connecting rod, and the compression spring is slidably sleeved to the outer periphery of the connecting rod.

[0014] Preferably, a pressure taking pipe is fixedly connected to a middle portion of the upper portion of the straight pipe, an output end of the pressure taking pipe is fixedly connected with a three-valve group, and an output end of the three-valve group is fixedly connected with a differential pressure transmitter.

[0015] Preferably, sealing rings two are fixedly connected to opposite sides of the two plug-in rings.

[0016] Thanks to the above technical scheme, the present application has the following technical progress compared with the prior art:

[0017] 1. The utility model provides a kind of porous balance flowmeter, the cooperation of ring chamber, orifice plate sensor, locating block and locating groove, the hole that is annularly distributed and left-right symmetrical in the middle of orifice plate sensor, can greatly reduce the formation of floc flow shear force and vortex, so that fluid is more evenly distributed when passing through orifice plate sensor, reduce the impact and wear of fluid to orifice plate sensor, reduce the kinetic energy loss in the process of fluid flow simultaneously, and reduce the formation of retention dead zone, so that fluid can pass smoothly, avoid blockage, prolong the service life of equipment, reduce the maintenance cost of equipment, and then improve the accuracy and stability of flow measurement.

[0018] 2, the utility model provides a kind of porous balance flowmeter, by the cooperation of each other of plug-in ring, slider, connecting rod, paddle and compression spring, form a set of dismounting and installation system, by poking paddle, the telescopic of plug-in ring can be easily controlled, realize the quick separation and connection of ring chamber and straight pipe, shorten the maintenance time of equipment, improve work efficiency, reduce the influence of production due to equipment downtime maintenance, reduce the production cost of enterprise.In addition, sealing ring two further guarantee the sealing property between plug-in ring and ring chamber insertion slot, prevent fluid leakage, ensure the safety and reliability of flowmeter in maintenance and overhaul process. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the lower side three-dimensional structure schematic diagram of the utility model;

[0021] Figure 3 It is the Figure 2 Amplification structure schematic diagram of site A of the utility model;

[0022] Figure 4 It is the flange structure schematic diagram of the utility model;

[0023] Figure 5 It is the balance mechanism structure schematic diagram of the utility model.

[0024] In the drawing: 1, straight pipe; 2, flange; 3, dismounting mechanism; 31, plug-in ring; 32, slider; 33, connecting rod; 34, paddle; 35, fixed block one; 36, compression spring; 4, balance mechanism; 41, ring chamber; 42, orifice plate sensor; 43, locating block; 44, locating groove; 45, sealing ring one; 46, sealing ring two; 5, pressure tapping pipe; 6, three valve groups; 7, differential pressure transmitter; 8, fixed block two; 9, bolt; 10, nut. DETAILED DESCRIPTION

[0025] In order to make the technical means, creation characteristics, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] As shown in Figures 1-5 , a porous balance flowmeter comprises two straight pipes 1, the opposite sides of the two straight pipes 1 are fixedly connected with flanges 2, and the opposite sides of the two straight pipes 1 are movably connected with a balance mechanism 4;

[0027] The balance mechanism 4 comprises two ring chambers 41, the opposite sides of the two ring chambers 41 are slidably connected to the opposite sides of the two straight pipes 1, and the opposite sides of the two ring chambers 41 are slidably connected with a hole plate sensor 42, the middle part of the hole plate sensor 42 is provided with a plurality of holes in a ring shape, and the holes are symmetrically distributed left and right.

[0028] It should be noted that the straight pipe 1 serves as the core path of fluid flow, provides a stable and unobstructed flow space for the measured fluid, and ensures that the fluid can maintain a relatively stable flow state during the measurement process. The straight pipe 1 is connected with the external pipeline through the flange 2, realizes seamless docking of the porous balance flowmeter and the external fluid conveying pipeline system, ensures that the fluid can smoothly enter and flow out of the flowmeter, and guarantees the sealing property of the connection part, prevents fluid leakage, and ensures the normal operation of the entire fluid conveying system.

[0029] The ring chamber 41 serves as the installation carrier of the hole plate sensor 42, provides an accurate installation position and a stable support environment for the hole plate sensor 42. The ring-shaped and left-right symmetrical holes in the middle part of the hole plate sensor 42 are the core measurement elements of the flowmeter. When the fluid flows through the hole plate sensor 42, a pressure difference is generated before and after the hole due to the throttling effect of the hole, and there is a certain functional relationship between the pressure difference and the fluid flow. The fluid flow can be calculated by measuring the pressure difference. The left-right symmetrical hole design can make the fluid flow more uniform when passing through the hole plate sensor 42, reduce the impact and wear of the fluid on the hole plate sensor 42, improve the accuracy and stability of the measurement, and also reduce the formation of floc shear force and vortex, reduce the loss of kinetic energy, and help to reduce the energy loss in the fluid flow process.

[0030] As shown in Figure 3 and Figure 5 , a sealing ring one 45 is fixedly sleeved on the middle part of the outer periphery of the hole plate sensor 42, a plurality of positioning blocks 43 in a ring shape are fixedly connected to the opposite sides of the two ring chambers 41, a plurality of positioning grooves 44 in a ring shape are formed on the outer periphery of the hole plate sensor 42, and the positioning blocks 43 are slidably connected inside the positioning grooves 44.

[0031] It should be noted that the main role of the sealing ring 45 is to ensure the sealing between the orifice plate sensor 42 and the ring chamber 41, to prevent fluid leakage at the connection between the orifice plate sensor 42 and the ring chamber 41, thereby ensuring the accuracy of the measurement results. The cooperation of the positioning block 43 and the positioning groove 44 can not only guide the installation of the orifice plate sensor 42, ensuring that the orifice plate sensor 42 is accurately installed at the specified position and ensuring the correct correspondence between the orifice and the fluid flow direction, but also restrict the rotation and radial movement of the orifice plate sensor 42 during the operation of the flowmeter, preventing measurement errors caused by the position deviation of the orifice plate sensor 42.

[0032] As shown in Figure 1 and Figure 4 , the outer periphery of the opposite side of the two straight pipes 1 is fixedly connected with four fixed blocks two 8 distributed in a ring shape, the middle part of the fixed blocks two 8 is slidingly connected with a bolt 9, the left side of the fixed block two 8 on the left side is fixedly connected with a nut 10, the bolt 9 is threadedly connected in the inside of the nut 10, and the opposite sides of the two straight pipes 1 are slidingly connected with a dismounting mechanism 3.

[0033] It should be noted that by passing the bolt 9 through the fixed block two 8 and screwing it into the nut 10, the two straight pipes 1 can be firmly connected together to ensure the overall structural stability of the flowmeter. This connection method not only facilitates installation and dismounting, but also can withstand relatively large fluid pressure, ensuring that the flowmeter can work normally under various working conditions. At the same time, the design of the four fixed blocks two 8 in a ring shape can uniformly distribute the connection force, further improving the reliability of the connection.

[0034] As shown in Figure 4 , the dismounting mechanism 3 includes a plug-in ring 31, the plug-in ring 31 is slidingly connected in the middle part inside the straight pipe 1, the opposite sides of the two ring chambers 41 are provided with plug-in grooves, the plug-in ring 31 is slidingly connected inside the plug-in grooves, the side of the plug-in ring 31 away from the ring chamber 41 is fixedly connected with two sliding blocks 32 distributed in front and back, the side of the sliding block 32 away from the plug-in ring 31 is fixedly connected with a compression spring 36, the middle part of the outer periphery of the straight pipe 1 is fixedly connected with two fixed blocks one 35 distributed in front and back, and the side of the compression spring 36 away from the sliding block 32 is fixedly connected inside the fixed block one 35.

[0035] It should be noted that the dismounting mechanism 3 provides convenience for the installation and dismounting of the balancing mechanism 4. When installing the balancing mechanism 4, the compression spring 36 is in a compressed state, and the plug-in ring 31 is tightly plugged into the plug-in groove of the ring chamber 41 under the elastic force of the compression spring 36, thereby fixing the ring chamber 41 on the straight pipe 1. When it is necessary to dismount the balancing mechanism 4 for maintenance or replacement of the orifice plate sensor 42, only the compression spring 36 needs to be further compressed by operation, and the plug-in ring 31 is withdrawn from the plug-in groove, so that the ring chamber 41 can be easily taken off from the straight pipe 1.

[0036] As Figure 5 shown, the slider 32 is fixedly connected with a connecting rod 33 at the middle of the side away from the plug-in ring 31, the connecting rod 33 is fixedly connected with a push plate 34 at the side away from the slider 32, and the compression spring 36 is slidingly sleeved on the outer periphery of the connecting rod 33.

[0037] It should be noted that the connecting rod 33 and the push plate 34 provide an easy force point for the operator to easily control the movement of the slider 32, thereby realizing the expansion and contraction of the plug-in ring 31. The operator only needs to move the push plate 34, which can drive the slider 32 to move through the connecting rod 33, and the compression spring 36 is further compressed, so that the plug-in ring 31 exits the plug-in slot.

[0038] As Figure 1 shown, the straight pipe 1 is fixedly connected with a pressure tapping pipe 5 at the middle of the upper part, the output end of the pressure tapping pipe 5 is fixedly connected with a three-valve group 6, and the output end of the three-valve group 6 is fixedly connected with a differential pressure transmitter 7.

[0039] It should be noted that the pressure tapping pipe 5 functions to lead out the pressure difference generated before and after the orifice plate sensor 42 and transmit it to the differential pressure transmitter 7. The three-valve group 6 plays a protective and regulating role for the pressure tapping pipe 5 and the differential pressure transmitter 7. When the flowmeter is in normal operation, the three-valve group 6 is in an open state, so that the pressure difference can be smoothly transmitted to the differential pressure transmitter 7; when the flowmeter needs to be maintained or calibrated, the transmission of the pressure difference can be cut off by closing the three-valve group 6 to prevent fluid leakage or damage to the differential pressure transmitter 7. The differential pressure transmitter 7 converts the received pressure difference signal into an electrical signal output, which is proportional to the flow of the fluid, and the flow value of the fluid can be obtained through subsequent signal processing circuit.

[0040] As Figure 3 shown, the opposite side of the two plug-in rings 31 is fixedly connected with a sealing ring two 46.

[0041] It should be noted that the sealing ring two 46 functions to ensure the sealing between the plug-in ring 31 and the plug-in slot of the ring chamber 41, preventing fluid leakage from the plug-in part.

[0042] The utility model discloses a working principle: when fluid enters flowmeter from the flange 2 end of one side straight pipe 1, flow through the orifice sensor 42 in balance mechanism 4. Due to the throttle effect of the hole on orifice sensor 42, fluid produces pressure difference before and after the hole. The pressure difference is led out by pressure tapping 5, and after the adjustment and protection of three valve groups 6, is transferred to differential pressure transmitter 7. Differential pressure transmitter 7 converts pressure difference signal into electric signal output, and the flow of fluid is calculated through subsequent signal processing circuit. In the working process of flowmeter, sealing ring one 45, sealing ring two 46 guarantee the sealing property of each junction, prevent fluid leakage;Positioning block 43 and positioning groove 44 ensure the position accuracy of orifice sensor 42;Dismounting mechanism 3 is convenient for the installation and dismounting of balance mechanism 4, and is convenient for maintenance and element replacement.

[0043] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled person in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-hole balanced flow meter, comprising two straight pipes (1), characterized in that: Flanges (2) are fixedly connected to opposite sides of the two straight pipes (1), and a balancing mechanism (4) is movably connected to opposite sides of the two straight pipes (1); The balancing mechanism (4) includes two annular chambers (41). The opposite sides of the two annular chambers (41) are slidably connected to the opposite sides of the two straight pipes (1). The opposite sides of the two annular chambers (41) are slidably connected to a perforated plate sensor (42). The perforated plate sensor (42) has holes distributed in a ring shape in the middle, and the holes are symmetrically distributed from left to right.

2. The multi-hole balanced flow meter according to claim 1, characterized in that: A sealing ring (45) is fixedly sleeved on the middle of the outer periphery of the orifice plate sensor (42). Multiple positioning blocks (43) arranged in a ring are fixedly connected to the opposite side of the two annular chambers (41). Multiple positioning grooves (44) arranged in a ring are opened on the outer periphery of the orifice plate sensor (42). The positioning blocks (43) are slidably connected inside the positioning grooves (44).

3. The multi-hole balanced flow meter according to claim 2, characterized in that: Four fixed blocks (8) arranged in a ring are fixedly connected to the outer periphery of the two straight pipes (1) on opposite sides. A bolt (9) is slidably connected to the middle of the fixed block (8). A nut (10) is fixedly connected to the left side of the fixed block (8) on the left side. The bolt (9) is threaded into the nut (10). A disassembly mechanism (3) is slidably connected to the opposite sides of the two straight pipes (1).

4. A multi-hole balanced flow meter according to claim 3, characterized in that: The disassembly mechanism (3) includes a plug ring (31), which is slidably connected to the middle of the inside of the straight tube (1). Plug slots are provided on opposite sides of the two annular chambers (41), and the plug ring (31) is slidably connected inside the plug slots. Two sliders (32) distributed front to back are fixedly connected to the side of the plug ring (31) away from the annular chamber (41). A compression spring (36) is fixedly connected to the side of the slider (32) away from the plug ring (31). Two fixing blocks (35) distributed front to back are fixedly connected to the middle of the outer periphery of the straight tube (1), and the side of the compression spring (36) away from the slider (32) is fixedly connected inside the fixing block (35).

5. A multi-hole balanced flow meter according to claim 4, characterized in that: A connecting rod (33) is fixedly connected to the middle of the side of the slider (32) away from the insertion ring (31), and a lever plate (34) is fixedly connected to the side of the connecting rod (33) away from the slider (32). The compression spring (36) is slidably sleeved on the outer periphery of the connecting rod (33).

6. A multi-hole balanced flow meter according to claim 1, characterized in that: A pressure tapping pipe (5) is fixedly connected to the middle of the upper part of the straight pipe (1), and a three-valve group (6) is fixedly connected to the output end of the pressure tapping pipe (5), and a differential pressure transmitter (7) is fixedly connected to the output end of the three-valve group (6).

7. A multi-hole balanced flow meter according to claim 4, characterized in that: Each of the two insertion rings (31) is fixedly connected to a sealing ring two (46) on its opposite side.

Images