Flow measurement system for multi-scene application

Abstract

The invention discloses a flow measurement system applied to multiple scenes, and relates to the technical field of fluid temperature measurement. Three flow measurement modes are adopted, fluid flowing at a low speed and fluid flowing at a high speed can be measured, and when the fluid flowing at the low speed is measured, the temperature measurement wings are rotated to obtain a larger facing area with the fluid, so that the measurement sensitivity degree is improved; by rotating the temperature measuring wing to the position parallel to the flowing direction of the fluid and adopting the mode of measuring the temperature attenuation speed, the problem of high pressure drop does not occur when the fluid flowing at a high speed is measured; the flow of various fluids with different media and fluids with different flow velocities can be measured, so that a wider application range and application fields are obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid temperature measurement, and in particular to a flow measurement system for multi-scenario applications. Background Art

[0002] With the development of industries such as industry, water conservancy, and irrigation, the demand for flow measurement is increasing. Traditional flow measurement methods can no longer meet the needs of modern industrial development, so a flow measurement system with multi-scenario applications is needed. However, the application field of traditional flow measurement devices is relatively narrow.

[0003] At present, in the prior art, there is a fuel injector flow measurement system (invention patent with announcement number CN111551224B), which introduces a constant temperature control component for measuring oil and designs a high-power heater and a low-power heater, which can effectively reduce the temperature fluctuation of the measuring oil. At the same time, a temperature sensor is installed at the measuring end to compare the actual measured temperature with the standard measured temperature and make flow compensation. However, it is unable to measure the flow of different fluids, which leads to a narrow application field. Summary of the invention

[0004] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a flow measurement system for multi-scenario applications, wherein step grooves are provided at both ends of the measuring pipeline, movable sleeves are slidably installed in the two step grooves, and mounting flange pipes are fixedly installed on the two movable sleeves through flanges, and a sealing elastic rubber ring is provided between the flange of the movable sleeve and the end face of the measuring pipeline, and the sealing elastic rubber ring is sleeved on the movable sleeve; a temperature measuring wing base and a temperature measuring wing top seat are symmetrically provided on the inner wall of the measuring pipeline, and the temperature measuring wing base and the temperature measuring wing top seat are both rotatably matched with the measuring pipeline, and two parallel arranged first temperature measuring wings and second temperature measuring wings are fixedly installed between the temperature measuring wing base and the temperature measuring wing top seat, and temperature probes are provided in the first temperature measuring wing and the second temperature measuring wing, wherein a heating wire is also provided in the second temperature measuring wing, and a boss is provided on the outer surface of the measuring pipeline, and a limiting ring is fixedly installed on the boss, and a limiting turntable is rotatably installed in the limiting ring, and the limiting turntable is fixedly matched with the temperature measuring wing top seat, and an adjusting rotating disk is fixedly installed on the limiting turntable, and the adjusting rotating disk is fixedly installed on the output shaft of the adjusting motor.

[0005] Preferably, the surfaces of the first temperature measurement wing and the second temperature measurement wing are both provided with elastic resistance strips, and the surfaces of the elastic resistance strips are provided with elastic insulating coatings.

[0006] Preferably, an adjusting motor support plate is fixedly mounted on the limiting ring, and the adjusting motor support plate is fixedly matched with the adjusting motor. Two symmetrically arranged limiting inclined planes are provided on the limiting turntable, and a roller placing groove is provided on the side of each limiting inclined plane. Every two symmetrically arranged limiting inclined planes and symmetrically arranged roller placing grooves constitute a limiting group, and 1-6 groups of limiting groups can be provided.

[0007] Preferably, an extrusion column is overlapped in each of the limiting slopes, and the extrusion column is frictionally and slidingly matched with the inner wall of the limiting ring, and an elastic belt is also provided between the limiting slope and the extrusion column to pull the extrusion column toward the narrow space.

[0008] Preferably, a roller is rotatably installed in the roller placement groove, a sliding chamber is opened on the adjusting rotating disk, a magnetic block is slidably installed in the sliding chamber, the magnetic block is magnetically matched with the winding in the adjusting motor, the magnetic block is connected to the extrusion column through an unlocking belt, and the unlocking belt is rollingly matched with the roller.

[0009] Preferably, it also includes a supporting assembly, which includes a protective shell, both ends of the protective shell are fixedly installed with side supporting through-hole plates, vents are provided on the side supporting through-hole plates, the side supporting through-hole plates are fixedly matched with the mounting flange tube, both ends of the inner wall of the protective shell are rotatably installed with cooling fans, and each cooling fan is fixedly installed with a gear ring.

[0010] Preferably, a protective cover is fixedly installed on the outer surface of the protective shell, a heat dissipation motor is fixedly installed inside the protective cover, gears are fixedly installed on both ends of the output shaft of the heat dissipation motor, and the two gears are meshed with two gear rings for transmission.

[0011] Preferably, at least three roller brackets are fixedly mounted on the inner wall of the protective shell, and rollers arranged one hundred and twenty degrees apart are rotatably mounted on each roller bracket, and the rollers roll in cooperation with the surface of the extrusion shell fixedly mounted on the outer surface of the measuring pipe.

[0012] Preferably, fixed support ring plates are provided at both end surfaces of the extruded shell, the two fixed support ring plates are fixedly mounted on the corresponding roller brackets through fixing frames, and pressure sensors are provided between the two fixed support ring plates and the two end surfaces of the extruded shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention adopts three flow measurement methods, which can measure low-speed flowing fluids and high-speed flowing fluids. When measuring low-speed flowing fluids, the temperature measuring wing is rotated to obtain a larger facing area with the fluid, thereby improving the measurement sensitivity; (2) The present invention rotates the temperature measuring wing to a position parallel to the fluid flow direction and adopts a method of measuring the temperature attenuation rate. When measuring high-speed flowing fluids, the problem of high pressure drop will not occur; (3) The present invention can measure the flow of fluids of various different media and fluids of different flow rates, thereby obtaining a wider range of applications and application fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the protective shell structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the protective shell of the present invention.

[0016] Figure 3 It is a schematic diagram of the structure of the roller of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the pressure sensor of the present invention.

[0018] Figure 5 This is a schematic diagram of the extruded shell structure of the present invention.

[0019] Figure 6 It is a schematic diagram of the temperature measurement wing structure of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the restriction ring of the present invention.

[0021] Figure 8 It is a schematic diagram of the structure of the adjusting rotating disk of the present invention.

[0022] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure at point A in the middle.

[0023] Fig.10 It is a schematic diagram of the structure of the extrusion column of the present invention.

[0024] In the figure: 101-measuring pipe; 102-extrusion shell; 103-movable sleeve; 104-sealing elastic rubber ring; 105-mounting flange pipe; 106-temperature measuring wing base; 107-first temperature measuring wing; 108-second temperature measuring wing; 109-temperature measuring wing top seat; 110-limiting ring; 111-adjusting motor support plate; 112-adjusting motor; 113-adjusting rotating disk; 1131-sliding chamber; 114-magnetic suction block; 115-solution Locking belt; 116-roller; 117-extrusion column; 118-elastic belt; 119-limiting turntable; 1191-limiting inclined plane; 1192-roller placement groove; 201-pressure sensor; 202-fixed support ring plate; 203-fixing frame; 204-roller bracket; 205-roller; 206-cooling fan; 207-gear ring; 208-gear; 209-cooling motor; 210-protective shell; 211-side supporting through-hole plate; 212-protective cover. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-10 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0026] The present invention provides a flow measurement system for multi-scenario applications, wherein step grooves are provided at both ends of a measuring pipe 101, movable sleeves 103 are slidably installed in the two step grooves, mounting flange pipes 105 are fixedly installed on the two movable sleeves 103 through flange plates, and a sealing elastic rubber ring 104 is provided between the flange plate of the movable sleeve 103 and the end face of the measuring pipe 101, and the sealing elastic rubber ring 104 is sleeved on the movable sleeve 103. The inner wall of the measuring pipe 101 is symmetrically provided with a temperature measuring wing base 106 and a temperature measuring wing top seat 109, and the temperature measuring wing base 106 and the temperature measuring wing top seat 109 are both rotatably matched with the measuring pipe 101, and two parallel arranged first temperature measuring wings 107 and second temperature measuring wings 108 are fixedly installed between the temperature measuring wing base 106 and the temperature measuring wing top seat 109, and temperature probes are arranged in the first temperature measuring wing 107 and the second temperature measuring wing 108, wherein a heating wire is also arranged in the second temperature measuring wing 108, and a boss is provided on the outer surface of the measuring pipe 101, and a limiting ring 110 is fixedly installed on the boss, and a limiting turntable 119 is rotatably installed in the limiting ring 110, and the limiting turntable 119 is fixedly matched with the temperature measuring wing top seat 109, and an adjusting rotating disk 113 is fixedly installed on the limiting turntable 119, and the adjusting rotating disk 113 is fixedly installed on the output shaft of the adjusting motor 112.

[0027] The surfaces of the first temperature measurement wing 107 and the second temperature measurement wing 108 are both provided with elastic resistance strips, and the surfaces of the elastic resistance strips are provided with elastic insulating coatings. An adjusting motor support plate 111 is also fixedly mounted on the limiting ring 110, and the adjusting motor support plate 111 is fixedly matched with the adjusting motor 112. Two symmetrically arranged limiting inclined planes 1191 are provided on the limiting turntable 119, and a roller placement groove 1192 is also provided on the side of each limiting inclined plane 1191, and every two symmetrically arranged limiting inclined planes 1191 and symmetrically arranged roller placement grooves 1192 constitute a limiting group, and the limiting group can be provided with 1-6 groups. An extrusion column 117 is overlapped in each limiting inclined plane 1191, and the extrusion column 117 is frictionally slidably matched with the inner wall of the limiting ring 110, and an elastic belt 118 is also provided between the limiting inclined plane 1191 and the extrusion column 117, which is used to pull the extrusion column 117 in the direction of the narrow space. A roller 116 is rotatably installed in the roller placement groove 1192, a sliding chamber 1131 is opened on the adjusting rotating disk 113, a magnetic block 114 is slidably installed in the sliding chamber 1131, the magnetic block 114 is magnetically matched with the winding in the adjusting motor 112, the magnetic block 114 is connected to the extrusion column 117 through an unlocking belt 115, and the unlocking belt 115 is rollingly matched with the roller 116.

[0028] The support assembly includes a protective shell 210, and side support through-hole plates 211 are fixedly installed at both ends of the protective shell 210. The side support through-hole plates 211 are provided with vents. The side support through-hole plates 211 are fixedly matched with the mounting flange pipe 105. The inner wall of the protective shell 210 is rotatably mounted with cooling fans 206, and each cooling fan 206 is fixedly mounted with a gear ring 207. A protective cover 212 is fixedly installed on the outer surface of the protective shell 210, and a cooling motor 209 is fixedly installed in the protective cover 212. Gears 208 are fixedly installed at both ends of the output shaft of the cooling motor 209, and the two gears 208 are meshed with the two gear rings 207 for transmission. At least three roller brackets 204 are fixedly installed on the inner wall of the protective shell 210, and rollers 205 arranged at one hundred and twenty degrees apart are rotatably installed on each roller bracket 204. The rollers 205 roll and cooperate with the surface of the extrusion shell 102 fixedly installed on the outer surface of the measuring pipeline 101. Fixed support ring plates 202 are provided at both end surfaces of the extruded shell 102 . The two fixed support ring plates 202 are fixedly mounted on corresponding roller brackets 204 through fixing frames 203 . Pressure sensors 201 are provided between the two fixed support ring plates 202 and both end surfaces of the extruded shell 102 .

[0029] The working principle of a flow measurement system for multi-scenario application disclosed in the present invention is as follows: two mounting flange pipes 105 of the device are installed in series in a pipeline where the flow needs to be monitored. When the fluid passes through the first temperature measurement wing 107 and the second temperature measurement wing 108, the temperature probe in the first temperature measurement wing 107 detects the temperature of the fluid, and then starts the heating wire inside the second temperature measurement wing 108 to heat the temperature of the second temperature measurement wing 108 to a temperature higher than the temperature of the fluid (for example, 10 degrees Celsius higher), and the temperature probe in the second temperature measurement wing 108 detects the temperature of the second temperature measurement wing 108 itself, and provides feedback, and the temperature of the second temperature measurement wing 108 is regulated in real time through the internal heating wire. That is to say, when the flow rate of the fluid increases, more heat will be taken away from the second temperature measurement wing 108. The faster the heat decays, the faster the flow rate of the fluid. At the same time, in order to ensure the temperature of the second temperature measurement wing 108 itself, the heating wire needs to be continuously heated, so more electric energy needs to be consumed (power consumption increases, and the current provided by the unheated wire must also increase). When it is necessary to measure a fluid that cannot be heated, it is only necessary to control the output shaft of the adjustment motor 112. The output shaft of the adjustment motor 112 will drive the adjustment rotating disk 113 to rotate. The rotation of the adjustment rotating disk 113 will drive the limiting turntable 119 to rotate. When the adjustment motor 112 is started, the internal winding will generate magnetic force, thereby attracting the magnetic block 114 upward. The magnetic block 114 pulls the extrusion column 117 to move through the unlocking belt 115 (overcoming the elastic force of the elastic belt 118), so that the extrusion column 117 moves toward the roller 116. That is, the limiting inclined surface 1191 and the inner wall of the limiting ring 110 are not in a hurry to squeeze the column 117. At this time, the limiting turntable 119 can rotate normally, and the limiting turntable 119 can rotate normally. The rotation of the disk 119 will drive the temperature measuring wing top seat 109 to rotate. At this time, the temperature measuring wing top seat 109 will change the angle between the first temperature measuring wing 107 and the second temperature measuring wing 108 and the fluid flow direction. That is to say, when the fluid flows through the first temperature measuring wing 107 and the second temperature measuring wing 108, the first temperature measuring wing 107 and the second temperature measuring wing 108 will be deformed by the impact of the fluid, which will also cause the resistance of the elastic resistor strip on its surface to change. The larger the deformation, the faster the flow rate of the fluid. At the same time, the greater the resistance of the elastic resistor strip, the smaller the current passing through. Therefore, by measuring the magnitude of the current, the flow rate of the fluid can also be measured, and the flow rate can be obtained.When the fluid impacts the first temperature measuring wing 107 and the second temperature measuring wing 108, a force is applied to the first temperature measuring wing 107 and the second temperature measuring wing 108, resulting in a tendency for the first temperature measuring wing 107 and the second temperature measuring wing 108 to rotate. The first temperature measuring wing 107 and the second temperature measuring wing 108 transmit the torque to the temperature measuring wing top seat 109, and then the temperature measuring wing top seat 109 transmits the torque to the limiting turntable 119, so that the limiting turntable 119 has a tendency to rotate. At this time, the adjustment motor 112 is not started, that is, the extrusion column 117 is moved away from the roller 116 by the elastic belt 118. , at this time, the limiting slope 1191 and the limiting ring 110 will squeeze the extrusion column 117, and the rotation of the limiting slope 1191 will drive the extrusion column 117 to rotate, and one of the extrusion columns 117 is subjected to the friction force of the limiting ring 110 and the pulling direction of the elastic belt 118, thereby causing the extrusion pressure of the limiting slope 1191 and the limiting ring 110 on the extrusion column 117 to further increase, so that the extrusion column 117 is stuck between the limiting slope 1191 and the limiting ring 110, and the first temperature measuring wing 107 and the second temperature measuring wing 108 cannot rotate, and can only rotate when the adjusting motor 112 is started.

[0030] When the first temperature measuring wing 107 and the second temperature measuring wing 108 are subjected to the impact force of the fluid, the impact force will be transmitted to the measuring pipe 101 along the axial direction, and the measuring pipe 101 will transmit the impact force to the extrusion shell 102. The extrusion shell 102 will squeeze the pressure sensor 201 (because the protective shell 210 is fixed, and the fixed support ring plate 202 is fixed to the protective shell 210 through the fixing frame 203 and the roller bracket 204, it will squeeze the pressure sensor 201). The pressure sensor 201 will measure the magnitude of the fluid pressure exerted on the first temperature measuring wing 107 and the second temperature measuring wing 108, and then reflect the flow rate of the fluid, which also reflects the flow rate of the fluid. The swing angle of the first temperature measuring wing 107 and the second temperature measuring wing 108 is controlled by the regulating motor 112. Therefore, the measurement sensitivity can be changed by the swing angle of the first temperature measuring wing 107 and the second temperature measuring wing 108 (the angle between the swing angle and the flow direction of the fluid). The larger the angle, the greater the pressure exerted on the pressure sensor 201.

[0031] When working in a high temperature environment, the heat dissipation motor 209 is started, and the two ends of the output shaft of the heat dissipation motor 209 will drive the gear 208 to rotate, and the gear 208 will drive the heat dissipation fan 206 to rotate through the gear ring 207. The rotation of the heat dissipation fan 206 will dissipate heat for the components inside the protective housing 210.

Claims

1. A flow measurement system for multi-scenario applications, characterized by: The measuring pipe (101) comprises a measuring pipe (101), wherein both ends of the measuring pipe (101) are provided with step grooves, wherein movable sleeves (103) are slidably mounted in the two step grooves, and mounting flange pipes (105) are fixedly mounted on the two movable sleeves (103) via flange plates, and a sealing elastic rubber ring (104) is arranged between the flange plates of the movable sleeves (103) and the end surface of the measuring pipe (101), and the sealing elastic rubber ring (104) is sleeved on the movable sleeves (103); The inner wall of the measuring pipe (101) is symmetrically provided with a temperature measuring wing base (106) and a temperature measuring wing top seat (109). Both the temperature measuring wing base (106) and the temperature measuring wing top seat (109) are rotatably matched with the measuring pipe (101). Two parallel-arranged first temperature measuring wings (107) and second temperature measuring wings (108) are fixedly installed between the temperature measuring wing base (106) and the temperature measuring wing top seat (109). The first temperature measuring wing (107) and the second temperature measuring wing (108) are internally provided with a plurality of temperature measuring wings (107) and a plurality of temperature measuring wings (108). A temperature probe is provided, wherein a heating wire is also provided in the second temperature measuring wing (108), a boss is provided on the outer surface of the measuring pipe (101), a limiting ring (110) is fixedly installed on the boss, a limiting rotating disk (119) is rotatably installed in the limiting ring (110), the limiting rotating disk (119) is fixedly matched with the temperature measuring wing top seat (109), an adjusting rotating disk (113) is fixedly installed on the limiting rotating disk (119), and the adjusting rotating disk (113) is fixedly installed on the output shaft of the adjusting motor (112).

2. A flow measurement system for multi-scenario applications according to claim 1, characterized in that: The surfaces of the first temperature measurement wing (107) and the second temperature measurement wing (108) are both provided with elastic resistance strips, and the surfaces of the elastic resistance strips are provided with elastic insulating coatings.

3. The flow measurement system for multiple scenarios according to claim 2 is characterized in that: The limiting ring (110) is also fixedly mounted with an adjusting motor support plate (111), the adjusting motor support plate (111) being fixedly matched with the adjusting motor (112), the limiting turntable (119) being provided with two symmetrically arranged limiting inclined surfaces (1191), each limiting inclined surface (1191) being further provided with a roller placement groove (1192) on its side, and every two symmetrically arranged limiting inclined surfaces (1191) and symmetrically arranged roller placement grooves (1192) constitute a limiting group, and the limiting groups can be provided in a number of 1 to 6 groups.

4. The flow measurement system for multiple scenarios according to claim 3 is characterized in that: An extrusion column (117) is overlapped and arranged inside each of the limiting inclined surfaces (1191), and the extrusion column (117) is frictionally and slidably matched with the inner wall of the limiting ring (110), and an elastic belt (118) is also arranged between the limiting inclined surface (1191) and the extrusion column (117) for pulling the extrusion column (117) towards the narrow space.

5. The flow measurement system for multiple scenarios according to claim 4, characterized in that: A roller (116) is rotatably mounted in the roller placement groove (1192), a sliding chamber (1131) is provided on the adjustment rotating disk (113), a magnetic block (114) is slidably mounted in the sliding chamber (1131), the magnetic block (114) is magnetically engaged with the winding in the adjustment motor (112), the magnetic block (114) is connected to the extrusion column (117) via an unlocking belt (115), and the unlocking belt (115) is rollingly engaged with the roller (116).

6. The flow measurement system for multiple scenarios according to claim 5, characterized in that: It also includes a support assembly, which includes a protective shell (210), side support through-hole plates (211) are fixedly mounted at both ends of the protective shell (210), and a vent is provided on the side support through-hole plates (211), the side support through-hole plates (211) are fixedly matched with the mounting flange tube (105), and cooling fans (206) are rotatably mounted on both ends of the inner wall of the protective shell (210), and each cooling fan (206) is fixedly mounted with a gear ring (207).

7. The flow measurement system for multiple scenarios according to claim 6, characterized in that: A protective cover (212) is fixedly mounted on the outer surface of the protective housing (210), a heat dissipation motor (209) is fixedly mounted inside the protective cover (212), gears (208) are fixedly mounted on both ends of the output shaft of the heat dissipation motor (209), and the two gears (208) are meshed with the two gear rings (207) for transmission.

8. The flow measurement system for multiple scenarios according to claim 7, characterized in that: At least three roller brackets (204) are fixedly mounted on the inner wall of the protective housing (210), and rollers (205) arranged one hundred and twenty degrees apart are rotatably mounted on each roller bracket (204), and the rollers (205) are in rolling engagement with the surface of an extrusion housing (102) fixedly mounted on the outer surface of the measuring pipe (101).

9. The flow measurement system for multiple scenarios according to claim 8, characterized in that: Fixed support ring plates (202) are provided at both end surfaces of the extrusion shell (102); the two fixed support ring plates (202) are fixedly mounted on corresponding roller brackets (204) via fixed frames (203); and pressure sensors (201) are provided between the two fixed support ring plates (202) and both end surfaces of the extrusion shell (102).

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