CN112013913B - Liquid flow measuring device - Google Patents
Liquid flow measuring device Download PDFInfo
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- CN112013913B CN112013913B CN202010900969.XA CN202010900969A CN112013913B CN 112013913 B CN112013913 B CN 112013913B CN 202010900969 A CN202010900969 A CN 202010900969A CN 112013913 B CN112013913 B CN 112013913B
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- 239000007788 liquid Substances 0.000 title claims abstract description 182
- 239000000523 sample Substances 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 39
- 230000007246 mechanism Effects 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000001125 extrusion Methods 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000004873 anchoring Methods 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/52—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring the height of the fluid level due to the lifting power of the fluid flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a liquid flow measuring device, which belongs to the technical field of liquid flow measurement, and comprises a floating ball type liquid level meter for measuring the liquid level height in a pipeline, wherein the floating ball type liquid level meter comprises a detection guide rod, a transmitter, a floating ball and a stop block, and the stop block is arranged at the lower end of the detection guide rod and further comprises: the connecting rod and the liquid flow velocity probe are positioned in the pipeline; the liquid flow velocity probe is used for measuring the liquid flow velocity in the pipeline and is connected with the floating ball through the connecting rod, and the liquid flow velocity probe is positioned below the floating ball; the liquid flow measuring device of the invention measures the flow velocity of the liquid in the pipeline through the liquid flow velocity probe, and then measures the liquid level height of the pipeline change through the floating ball type liquid level meter, converts the liquid level height into a real-time fluid section, and the real-time flow of the liquid in the pipeline is obtained by multiplying the flow velocity and the fluid section.
Description
Technical Field
The invention belongs to the technical field of liquid flow measurement, and particularly relates to a liquid flow measurement device.
Background
The existing liquid flow meter for measuring the water channel pipeline mostly adopts an ultrasonic flow meter and a worm gear flow meter, and the liquid flow in the water channel pipeline is in the condition of fluctuation, such as residential areas, when the water flow is large during a meal point, the liquid flow in the water channel pipeline is high, the water consumption at other times can be small, and the corresponding liquid flow in the water channel pipeline is low, so that the water flow meter is not suitable for the ultrasonic flow meter; however, the worm wheel flowmeter is not suitable for measuring the total flow rate of the liquid in the waterway pipe because it is difficult to measure the height of the liquid level varying in the waterway pipe, although it can measure the flow rate of the liquid.
There is therefore a need for a liquid flow measuring device that is capable of measuring the flow rate of liquid in waterway pipes and varying liquid level heights.
Disclosure of Invention
The invention aims to provide a liquid flow measuring device capable of measuring the flow rate of liquid in a waterway pipeline and the height of the changed liquid level.
In order to solve the technical problem, the invention provides a liquid flow measuring device, which comprises a floating ball type liquid level meter for measuring the liquid level height of liquid in a pipeline, wherein the floating ball type liquid level meter comprises a detection guide rod, a transmitter, a floating ball and a stop block, and the stop block is arranged at the lower end of the detection guide rod and further comprises:
The connecting rod is positioned in the pipeline;
The liquid flow velocity probe is used for measuring the flow velocity of liquid in the pipeline and is connected with the floating ball through the connecting rod, and the liquid flow velocity probe is positioned below the floating ball.
In the technical scheme, the flow velocity of the liquid in the pipeline is measured through the liquid flow velocity probe; in order to install the liquid flow velocity probe, the liquid flow velocity probe is fixed on the floating ball through the connecting rod; in the whole liquid flow measurement process, in order to enable the liquid flow probe to accurately measure the flow rate of liquid in the pipeline, the floating ball always floats on the surface of the liquid in the pipeline due to the buoyancy effect of the liquid, and the liquid flow probe is positioned in the liquid in the pipeline due to the fact that the liquid flow probe is positioned below the floating ball, so that the phenomenon that the liquid flow probe is simply fixed in the pipeline and the water level is too low to measure the flow rate of the liquid in the pipeline is avoided, or sundries in the pipeline block the measurement of the liquid flow probe is avoided, the liquid flow probe moves along with the movement of the floating ball on the detection guide rod in the design, and the measured position changes, so that the measured liquid flow rate data is more accurate; and measuring the liquid level height of the pipeline change through a floating ball type liquid level meter, converting the liquid level height into a real-time fluid section, and multiplying the flow rate by the fluid section to obtain the real-time flow rate of the liquid in the pipeline.
Further, the liquid flow measuring device further comprises a fixing mechanism, the floating ball type liquid level meter is fixed on the pipeline through the fixing mechanism, and under the action of the fixing mechanism, the floating ball type liquid level meter can be more stably arranged on the pipeline so as to prevent the impact of water in the pipeline on the floating ball type liquid level meter, so that the floating ball type liquid level meter is unstable in installation structure and is damaged.
Further, the fixing mechanism is detachably fixed on the inner pipe wall of the pipeline, and is designed into a detachable structure in order to be capable of conveniently disassembling and maintaining the floating ball type liquid level meter.
Further, the fixed establishment includes mounting panel and anchor ring, the port both sides of pipeline all excavate the cardboard groove that extends by the pipe inner wall to the pipe outer wall, be equipped with the ring channel on the port face of pipeline, the ring channel passes the cardboard groove, the flange card of mounting panel is put in the cardboard inslot, the anchor ring looks adaptation is fixed in the ring channel, the anchor ring with the mounting panel contacts, detect the guide arm vertically and pass the mounting panel and with mounting panel looks fixed connection, in this design, through the fixed detection guide arm of mounting panel with this purpose that reaches the installation liquid level, the mounting panel passes through the card and puts in the cardboard inslot with this preliminary fixed that reaches the mounting panel, and the rethread anchor ring suppresses the mounting panel, finally reaches the purpose of stable mounting panel.
Further, the liquid flow measuring device further comprises a reinforcing mechanism, the reinforcing mechanism comprises two extrusion rings and connecting strips for connecting the two extrusion rings, the extrusion rings are made of elastic materials, the extrusion rings are extruded between the anchoring rings and the annular grooves, the reinforcing mechanism is designed for reinforcing the connection strength of the mounting plate, the extrusion rings in the reinforcing mechanism are made of elastic materials and have certain elasticity, the extrusion rings are extruded between the anchoring rings and the annular grooves, the anchoring rings are more tightly connected between the annular grooves, the purpose of fixing the mounting plate is indirectly achieved, and the connecting strips are used for connecting the two extrusion rings, so that the two extrusion rings can be conveniently placed between the anchoring rings and the annular grooves.
Further, the liquid flow measuring device further comprises a protective cover, the top surface and the bottom surface of the protective cover are all in an opening shape, the mounting plate is fixedly connected to the upper end of the protective cover, the liquid flow rate probe is located below the protective cover, when the floating ball type liquid level meter is used for measuring liquid level measurement, the floating ball and the detection guide rod are easy to collide with sundries in pipeline liquid, damage can be caused to the floating ball and the detection guide rod, the protective cover is designed for avoiding the phenomenon, the protective cover is mounted on the mounting plate, and the liquid flow rate probe is arranged below the protective cover for preventing the protective cover from influencing the liquid flow rate measurement of the liquid flow rate probe, so that the liquid flow rate measurement of the liquid flow rate probe is not influenced.
Further, the protective cover comprises a liquid-facing sub-cover and a liquid-facing sub-cover, the top surface, the side surface and the bottom surface of the liquid-facing sub-cover are all in an opening state, the top surface of the liquid-facing sub-cover is fixed on the mounting plate, the lower end of the side surface of the liquid-facing sub-cover is rotationally connected with the lower end of the liquid-facing sub-cover, a buffer spring is arranged between the included angle formed by the liquid-facing sub-cover and the liquid-facing sub-cover, the two ends of the buffer spring are respectively fixedly connected with the liquid-facing sub-cover and the liquid-facing sub-cover, the mounting plate is provided with an arc-shaped sliding section extending to be close to the detection guide rod, the two ends of the arc-shaped sliding section of the mounting plate are provided with stop blocks, the upper end of the liquid-facing sub-cover is slidingly connected with the arc-shaped sliding section of the mounting plate, in order to reduce the damage of the protective cover caused by collision of sundries when the floating ball and the detection guide rod are protected, the protective cover is designed into a liquid-facing sub-cover and a liquid-backing sub-cover, wherein the liquid-facing sub-cover is positioned at a position where the front face faces the liquid to flow in, when the liquid-facing sub-cover is collided by sundries, especially heavy objects, the liquid-facing sub-cover can deflect around the liquid-backing sub-cover, in the process, the upper end of the liquid-facing sub-cover slides along the arc-shaped sliding section of the mounting plate, as a buffer spring is arranged between the included angles formed by the liquid-backing sub-cover and the liquid-facing sub-cover, and the two ends of the buffer spring are fixedly connected with the liquid-backing sub-cover and the liquid-facing sub-cover respectively, so that when the impact force of the sundries is eliminated, the liquid-facing sub-cover automatically returns towards the initial position by virtue of the elasticity of the buffer spring, the arrangement of the arc-shaped sliding section of the mounting plate not only can provide a sliding track for the upper end of the liquid-facing sub-cover, but also can avoid that the upper end of the liquid-facing sub-cover forms a notch in a short time due to deflection if no shielding exists, the sundries can directly enter the protective cover from the notch to collide with the floating ball or the detection guide rod.
Further, the liquid flow measuring device further comprises a cover plate, a movable hole is formed in the cover plate, the cover plate is detachably fixed to the lower end of the protective cover, the connecting rod is L-shaped, the vertical rod section of the connecting rod penetrates through the movable hole and is in clearance with the movable hole, the stop block is fixedly connected to the cover plate, in order to reduce sundries entering the protective cover, the sundries are prevented from being too much accumulated in the protective cover and blocking the two sides of the detection guide rod, the movement of the floating ball is influenced, the cover plate is designed, the cover plate can prevent a large part of sundries from entering the protective cover, but the movable hole is formed in consideration of the fact that the floating ball type liquid level gauge needs to measure the liquid level height and the movement of the floating ball is not influenced, the connecting rod can move in the movable hole under the driving of the floating ball, and liquid in the pipeline can enter the protective cover through the clearance.
Further, the side wall of the protective cover is provided with the water inlet, and the water inlet is formed in the side wall of the protective cover in consideration of the fact that the liquid inflow speed of the gap is too slow, so that the liquid inflow speed in the protective cover is improved.
Further, the liquid flow measuring device further comprises a mounting rod, a net mounting ring, a filter screen and a fixing column, wherein the filter screen is filled on the net mounting ring, a rod groove is formed in the side wall of the protective cover, the rod groove extends to the water inlet hole, a fixing column hole is formed in the rod groove, the net mounting ring is mounted on the water inlet hole in an adaptive manner, a through hole is formed in the mounting rod, the mounting rod is fixedly connected with the net mounting ring, the mounting rod is arranged in the rod groove, the fixing column penetrates through the through hole and is connected in the fixing column hole, and the filter screen is arranged for further preventing sundries from having the water inlet hole; in order to install the filter screen more conveniently and stably, a screen installing ring and an installing rod connected with the screen installing ring are arranged, wherein the installing rod is fixed in the fixing column hole through the fixing column, and the purpose of being fixed in the rod groove is achieved.
In summary, the liquid flow measuring device of the invention is used for measuring the flow rate of the liquid in the pipeline through the liquid flow rate probe, measuring the liquid level height of the pipeline change through the floating ball type liquid level meter, converting the liquid level height into a real-time fluid section, and multiplying the flow rate by the fluid section to obtain the real-time flow rate of the liquid in the pipeline.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the connection of a float gauge, a securing mechanism, and a pipe;
FIG. 3 is a schematic structural view of the securing mechanism;
FIG. 4 is a schematic structural view of a reinforcement mechanism;
FIG. 5 is a schematic illustration of the connection of a filter screen to a screen ring;
FIG. 6 is a side wall section view of the protective cover;
in the figure: 10. float ball type liquid level meter; 101. detecting a guide rod; 102. a transmitter; 103. a floating ball; 104. a stop block; 20. a connecting rod; 30. a liquid flow rate probe; 40. a fixing mechanism; 401. a mounting plate; 4011. an arc sliding section; 4012. a stop block; 402. an anchor ring; 50. a card plate groove; 60. an annular groove; 70. a reinforcement mechanism; 701. a pressing ring; 702. a connecting strip; 80. a protective cover; 801. a liquid-facing sub-cover; 802. a back liquid sub-cover; 803. a water inlet hole; 804. a rod groove; 805. fixing column holes; 90. a buffer spring; 100. a cover plate; 1001. a movable hole; 110. a mounting rod; 1101. perforating; 120. a net loading ring; 130. a filter screen; 140. and fixing the column.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the present invention provides a liquid flow measuring device, which includes a floating ball type liquid level meter 10 for measuring the liquid level height in a pipeline, wherein the floating ball type liquid level meter 10 includes a detection guide rod 101, a transducer 102, a floating ball 103 and a stop block 104, the stop block 104 is arranged at the lower end of the detection guide rod 101, and further includes: a connecting rod 20 and a liquid flow rate probe 30. The float gauge 10 is preferably a UHZ-50/D series top-mounted magnetic float gauge 10 manufactured by Anhui Tiankang group (Inc.).
Wherein the connecting rod 20 is located within the conduit;
The liquid flow rate probe 30 is used for measuring the liquid flow rate in the pipeline, preferably an MGG/KL type flow rate meter is adopted, the liquid flow rate probe 30 is connected with the floating ball 103 through the connecting rod 20, and the liquid flow rate probe 30 is positioned below the floating ball 103.
Both the liquid flow rate probe 30 and the float gauge 10 are well known in the art.
In operation, the flow rate of the liquid in the pipeline is measured by the liquid flow rate probe 30; for installing the liquid flow rate probe 30, the liquid flow rate probe 30 is fixed on the floating ball 103 through the connecting rod 20; in the whole liquid flow measurement process, in order to enable the liquid flow probe 30 to accurately measure the flow rate of liquid in a pipeline, the floating ball 103 always floats on the surface of the liquid in the pipeline due to the buoyancy effect of the liquid, and the liquid flow probe 30 is positioned in the liquid in the pipeline due to the fact that the liquid flow probe 30 is positioned below the floating ball 103, so that the phenomenon that the flow rate of the liquid in the pipeline cannot be measured due to the fact that the water level of the liquid flow probe 30 is simply fixed in the pipeline is possibly too low is avoided, or the liquid flow probe 30 is blocked by sundries in the pipeline is measured, the liquid flow probe 30 moves along with the floating ball 103 moving on the detection guide rod 101, the measured position changes, and the measured liquid flow rate data is more accurate; when the floating ball type liquid level meter 10 works, the floating ball 103 floats on the liquid level according to the principle that the volume of discharged liquid is equal, when the liquid level in the pipeline changes, the floating ball 103 moves up and down on the detection guide rod 101, due to the magnetic effect, the dry spring of the floating ball type liquid level meter 10 is magnetically attracted, the liquid level position change information is converted into an electric signal, the actual height of the liquid is digitally displayed through the display meter and is converted into a real-time fluid section, the real-time flow of the liquid in the pipeline is obtained by multiplying the flow rate and the fluid section, and the data measured by the liquid flow rate probe 30 and the floating ball type liquid level meter 10 can be transmitted to a controller on the ground in a wireless or wired mode through the electric signal, so that the statistics of detection personnel is facilitated.
Example 2
As shown in fig. 2 and 3, this embodiment 2 is further extended on the basis of embodiment 1, in order to reduce the structural instability caused by holding the improved liquid flow measuring device in embodiment 1 by a inspector or simply placing the liquid flow measuring device on a pipeline, a fixing mechanism 40 is added in the original liquid flow measuring device, the floating ball type liquid level meter 10 is fixed on the pipeline through the fixing mechanism 40, and under the action of the fixing mechanism 40, the floating ball type liquid level meter 10 can be more stably arranged on the pipeline, so as to prevent the water in the pipeline from impacting the floating ball type liquid level meter 10, thereby causing the unstable installation structure of the floating ball type liquid level meter 10 and damage.
Example 3
As shown in fig. 2 and 3, this embodiment 3 is further extended from embodiment 2, and considering that the fixing mechanism 40 is preferably detachably fixed to the inner wall of the pipe, since the fixing mechanism 40 adds inconvenience to the secondary replacement use of the liquid flow rate measuring device if the liquid flow rate measuring device is fixed in a non-detachable manner, the fixing mechanism 40 is designed to be detachable, and convenient detachment and maintenance of the floating ball type liquid level meter 10 can be performed.
Example 4
As shown in fig. 2 and 3, this embodiment 4 further extends on the basis of embodiment 3, the fixing mechanism 40 preferably includes a mounting plate 401 and an anchor ring 402, both sides of the port of the pipe are each excavated with a clamping plate groove 50 extending from the inner wall of the pipe to the outer wall of the pipe, the port surface of the pipe is provided with an annular groove 60, the annular groove 60 passes through the clamping plate groove 50, the plate edge of the mounting plate 401 is clamped in the clamping plate groove 50, the anchor ring 402 is adaptively fixed in the annular groove 60, the anchor ring 402 is in contact with the mounting plate 401, the detection guide rod 101 vertically passes through the mounting plate 401 and is fixedly connected with the mounting plate 401, in this design, the purpose of installing the liquid level is achieved by fixing the detection guide rod 101 through the mounting plate 401, the mounting plate 401 is initially fixed through the clamping plate groove 50, and finally the purpose of stabilizing the mounting plate 401 is achieved by pressing the mounting plate 401 through the anchor ring 402.
Example 5
As shown in fig. 4, this embodiment 5 is further extended on the basis of embodiment 4, in order to reinforce the connection strength of the mounting plate 401, a reinforcing mechanism 70 is designed, the reinforcing mechanism 70 includes two pressing rings 701 and a connection bar 702 connecting the two pressing rings 701, the two pressing rings 701 are divided into an inner ring and an outer ring, the inner ring is concentric with the outer ring, the pressing rings 701 are made of an elastic material such as a rubber material, the connection bar 702 is made of a steel material, the pressing rings 701 are pressed between the anchor ring 402 and the annular groove 60, the pressing rings 701 in the reinforcing mechanism 70 are made of an elastic material having a certain elasticity and are pressed between the anchor ring 402 and the annular groove 60, so that the anchor ring 402 is more tightly connected between the annular groove 60, and the purpose of fixing the mounting plate 401 is indirectly achieved, and the connection bar 702 is used for connecting the two pressing rings 701, so that the two pressing rings 701 can be conveniently placed between the anchor ring 402 and the annular groove 60.
Example 6
As shown in fig. 1, this embodiment 6 is further extended on the basis of embodiment 5, when the floating ball type liquid level meter 10 is used for measuring the liquid level, the floating ball 103 and the detection guide rod 101 are easily collided by sundries in the pipeline liquid, damage is caused to the floating ball 103 and the detection guide rod 101, in order to avoid the phenomenon, the protection cover 80 is designed, the top surface and the bottom surface of the protection cover 80 are both opened, the mounting plate 401 is fixedly connected to the upper end of the protection cover 80 to seal the upper end of the protection cover 80, the liquid flow rate probe 30 is located below the protection cover 80, and the protection cover 80 is mounted on the mounting plate 401, so that the liquid flow rate probe 30 is placed below the protection cover 80 to prevent the protection cover 80 from affecting the liquid flow rate measurement of the liquid flow rate probe 30.
Example 7
As shown in fig. 1, this embodiment 7 further extends on the basis of embodiment 6, the protection cover 80 includes a liquid-facing sub-cover 801 and a liquid-backing sub-cover 802, the top surface, the side surface and the bottom surface of the liquid-backing sub-cover 802 are all in an open state, the top surface of the liquid-backing sub-cover 802 is fixed on the mounting plate 401, the lower end of the side surface of the liquid-backing sub-cover 802 is rotationally connected with the lower end of the liquid-facing sub-cover 801, a buffer spring 90 is disposed between the included angle formed by the liquid-backing sub-cover 802 and the liquid-facing sub-cover 801, two ends of the buffer spring 90 are fixedly connected with the liquid-backing sub-cover 802 and the liquid-facing sub-cover 801, respectively, the mounting plate 401 has an arc-shaped slide section 4011 extending to be close to the detection guide rod 101, the distance between the arc-shaped slide section 4011 and the detection guide rod 101 is maintained at not less than 2cm, two ends of the arc-shaped slide section 4011 of the mounting plate 401 are provided with stop blocks 4012, the upper end of the liquid-facing sub-cover 801 is slidingly connected with the arc-shaped slide section 4011 of the mounting plate 401, considering that the protection cover 80 protects the floating ball 103 and the detection guide rod 101 and can be impacted by sundries, in order to reduce the damage of the protection cover 80 caused by the collision, the protection cover 80 is designed into a liquid-facing sub-cover 801 and a liquid-backing sub-cover 802, wherein the liquid-facing sub-cover 801 is positioned at a position where liquid flows in from front, when the liquid-facing sub-cover 801 is impacted by sundries, especially heavy objects, the liquid-facing sub-cover 801 deflects around the liquid-backing sub-cover 802, during the process, the upper end of the liquid-facing sub-cover 801 slides along the arc-shaped sliding section 4011 of the mounting plate 401, the stop block 4012 can prevent the liquid-facing sub-cover 801 from sliding out of the arc-shaped sliding section 4011 of the mounting plate 401, and a buffer spring 90 is arranged between an included angle formed by the liquid-backing sub-cover 802 and the liquid-facing sub-cover 801, and two ends of the buffer spring 90 are fixedly connected with the liquid-backing sub-cover 802 and the liquid-facing sub-cover 801 respectively, so that when the impact force of sundries is eliminated, depending on the elasticity of the buffer spring 90, the liquid-facing sub-cover 801 automatically returns toward the initial position, and the elasticity provided by the buffer spring 90 is large enough, so that the deflection angle of the liquid-facing sub-cover 801 is not large, the opening amplitude formed by the liquid-facing sub-cover 801 during deflection is not large, the arc-shaped sliding section 4011 of the mounting plate 401 can not only provide a sliding track for the upper end of the liquid-facing sub-cover 801, but also avoid that a large gap is formed in a short time by deflection if the upper end of the liquid-facing sub-cover 801 is not shielded, and sundries can directly enter the protective cover 80 from the gap to collide with the floating ball 103 or the detection guide rod 101.
Example 8
As shown in fig. 1, this embodiment 8 extends further on the basis of embodiment 7, in order to reduce the entry of impurities into the protective cover 80 and prevent the excessive accumulation of impurities on both sides of the detection guide rod 101 in the protective cover 80, and influence the movement of the floating ball 103, a cover plate 100 is designed, a movable hole 1001 is provided on the cover plate 100, the cover plate 100 is detachably fixed at the lower end of the protective cover 80, the connecting rod 20 is L-shaped, the vertical rod section of the connecting rod 20 passes through the movable hole 1001 and leaves a gap with the movable hole 1001, the gap size is maintained at 2-4mm, a stop 104 is fixedly connected to the cover plate 100, the cover plate 100 can prevent a great part of impurities from entering the protective cover 80, but considering that the floating ball type liquid level gauge 10 needs to measure the liquid level and does not influence the movement of the floating ball 103, the movable hole 1001 is provided, the connecting rod 20 can move in the movable hole 1001 under the driving of the floating ball 103, and the liquid in the pipeline can enter the protective cover 80 through the gap.
Example 9
As shown in fig. 6, this embodiment 9 is further extended from embodiment 8, and in consideration of the fact that the liquid inflow rate from the gap is too slow, the water inlet 803 is formed in the side wall of the protective cover 80, so that the liquid inflow rate in the protective cover 80 is increased.
Example 10
As shown in fig. 5, this embodiment 10 further extends on the basis of embodiment 1, the liquid flow measuring device further includes a mounting rod 110, a mounting ring 120, a filter screen 130, and a fixing post 140, where the filter screen 130 is filled on the mounting ring 120, a rod groove 804 is provided on a side wall of the protective cover 80, the rod groove 804 extends to the water inlet 803, a fixing post hole 805 is provided in the rod groove 804, an outer diameter of the mounting ring 120 is equal to an inner diameter of the water inlet 803, so that the mounting ring 120 is fixedly mounted on the water inlet 803 in a matching manner, a perforation 1101 is provided on the mounting rod 110, the mounting rod 110 and the mounting ring 120 are fixedly connected by welding, for example, the mounting rod 110 is disposed in the rod groove 804, a rod diameter of the mounting rod 110 is equal to a groove width of the rod groove 804, so that the mounting rod 110 can be fixed in the rod groove 804, the fixing post 140 is connected in the fixing post hole 805 through the perforation 1101, and an outer diameter of the fixing post 140 is equal to an inner diameter of the fixing post hole 805, so that the fixing post 140 can be fixedly mounted in the fixing post hole 805, and in order to further prevent sundries from being provided with the water inlet 803, and the filter screen 130 is provided; in order to install the filter screen 130 more conveniently and stably, the filter screen 130 is provided with the screen ring 120 and the installation rod 110 connected with the filter screen 130, preferably, a steel wire mesh with smaller holes is adopted, the filter screen 130 is fixed on the inner ring side wall of the screen ring 120 in a welding mode, or the filter screen 130 is wrapped on the outer side of the screen ring 120, in summary, the filter screen 130 covers the whole annular hole of the screen ring 120, so that sundries are blocked outside the protection cover 80 when passing through the annular hole, and the installation rod 110 is fixed in the fixing column holes 805 through the fixing columns 140 to achieve the purpose of being fixed in the rod groove 804.
In summary, the liquid flow rate measuring device of the present invention is used to measure the flow rate of the liquid in the pipeline through the liquid flow rate probe 30, and then measure the liquid level height of the pipeline change through the floating ball type liquid level meter 10, and convert the liquid level height into a real-time fluid section, and the real-time flow rate of the liquid in the pipeline is obtained by multiplying the flow rate and the fluid section.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (4)
1. The utility model provides a liquid flow measurement device, is including being used for measuring the interior fluid level height's of pipeline floater level gauge (10), floater level gauge (10) are including detecting guide arm (101), changer (102), floater (103) and dog (104), dog (104) set up detect the lower extreme of guide arm (101), characterized by still includes:
-a connecting rod (20), said connecting rod (20) being located within said pipe;
A liquid flow rate probe (30) for measuring the flow rate of the liquid in the pipeline, wherein the liquid flow rate probe (30) is connected with the floating ball (103) through the connecting rod (20), and the liquid flow rate probe (30) is positioned below the floating ball (103);
The liquid flow measuring device further comprises a fixing mechanism (40), and the floating ball type liquid level meter (10) is fixed on the pipeline through the fixing mechanism (40);
the fixing mechanism (40) is detachably fixed on the inner pipe wall of the pipeline;
The fixing mechanism (40) comprises a mounting plate (401) and an anchor ring (402), clamping plate grooves (50) extending from the inner wall of the pipe to the outer wall of the pipe are dug at two sides of the port of the pipe, annular grooves (60) are formed in the pipe surface of the port of the pipe, the annular grooves (60) penetrate through the clamping plate grooves (50), the plate edges of the mounting plate (401) are clamped in the clamping plate grooves (50), the anchor ring (402) is adaptively fixed in the annular grooves (60), the anchor ring (402) is in contact with the mounting plate (401), and the detection guide rod (101) vertically penetrates through the mounting plate (401) and is fixedly connected with the mounting plate (401);
The liquid flow measuring device further comprises a reinforcing mechanism (70), wherein the reinforcing mechanism (70) comprises two extrusion rings (701) and a connecting strip (702) for connecting the two extrusion rings (701), the extrusion rings (701) are made of elastic materials, and the extrusion rings (701) are extruded between the anchoring rings (402) and the annular grooves (60);
the liquid flow measuring device further comprises a protective cover (80), the top surface and the bottom surface of the protective cover (80) are both in an opening shape, the mounting plate (401) is fixedly connected to the upper end of the protective cover (80), and the liquid flow velocity probe (30) is positioned below the protective cover (80);
The protection cover (80) comprises a liquid-facing sub-cover (801) and a liquid-facing sub-cover (802), the top surface, the side surface and the bottom surface of the liquid-facing sub-cover (802) are all in an opening state, the top surface of the liquid-facing sub-cover (802) is fixed on the mounting plate (401), the lower end of the side surface of the liquid-facing sub-cover (802) is rotationally connected with the lower end of the liquid-facing sub-cover (801), a buffer spring (90) is arranged between included angles formed by the liquid-facing sub-cover (802) and the liquid-facing sub-cover (801), two ends of the buffer spring (90) are fixedly connected with the liquid-facing sub-cover (802) and the liquid-facing sub-cover (801) respectively, the mounting plate (401) is provided with an arc-shaped sliding section (4011) extending to be close to the detection guide rod (101), and two ends of the arc-shaped sliding section (4011) of the mounting plate (401) are provided with stop blocks (4012), and the upper end of the liquid-facing sub-cover (801) is connected with the arc-shaped sliding section (4011) of the mounting plate (401).
2. The liquid flow rate measurement device according to claim 1, wherein: the liquid flow measuring device further comprises a cover plate (100), a movable hole (1001) is formed in the cover plate (100), the cover plate (100) is detachably fixed to the lower end of the protective cover (80), the connecting rod (20) is L-shaped, a vertical rod section of the connecting rod (20) penetrates through the movable hole (1001) and is in clearance with the movable hole (1001), and the stop block (104) is fixedly connected to the cover plate (100).
3. The liquid flow rate measurement device according to claim 2, characterized in that: the side wall of the protective cover (80) is provided with a water inlet hole (803).
4. A liquid flow rate measurement device according to claim 3, wherein: the liquid flow measuring device further comprises a mounting rod (110), a mesh mounting ring (120), a filter screen (130) and a fixing column (140), wherein the filter screen (130) is filled on the mesh mounting ring (120), a rod groove (804) is formed in the side wall of the protective cover (80), the rod groove (804) extends to the water inlet hole (803), a fixing column hole (805) is formed in the rod groove (804), the mesh mounting ring (120) is mounted on the water inlet hole (803) in a matched mode, a perforation (1101) is formed in the mounting rod (110), the mounting rod (110) is fixedly connected with the mesh mounting ring (120), the mounting rod (110) is arranged in the rod groove (804), and the fixing column (140) penetrates through the perforation (1101) to be connected into the fixing column hole (805).
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| CN202010900969.XA CN112013913B (en) | 2020-08-31 | 2020-08-31 | Liquid flow measuring device |
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| CN202010900969.XA CN112013913B (en) | 2020-08-31 | 2020-08-31 | Liquid flow measuring device |
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| CN115420863B (en) * | 2022-11-04 | 2023-02-03 | 四川瑞吉绿能科技有限公司 | Method for improving measurement accuracy of gas carbon content |
| CN116182961B (en) * | 2023-04-21 | 2023-07-07 | 河北东讯科技有限公司 | On-line monitoring device for sea entrance flow |
| CN116576926B (en) * | 2023-07-13 | 2023-10-13 | 陕西瀚泰水利水电勘测设计有限公司 | Irrigation last-stage channel flow measuring device |
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