CN112013913A - Liquid flow measuring device - Google Patents
Liquid flow measuring device Download PDFInfo
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- CN112013913A CN112013913A CN202010900969.XA CN202010900969A CN112013913A CN 112013913 A CN112013913 A CN 112013913A CN 202010900969 A CN202010900969 A CN 202010900969A CN 112013913 A CN112013913 A CN 112013913A
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- 239000007788 liquid Substances 0.000 title claims abstract description 216
- 239000000523 sample Substances 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 29
- 230000001681 protective effect Effects 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000004873 anchoring Methods 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000013013 elastic material Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 11
- 230000008859 change Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000005389 magnetism Effects 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
- 230000017105 transposition Effects 0.000 description 1
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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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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a liquid flow measuring device, belonging to the technical field of liquid flow measurement, comprising 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, the stop block is arranged at the lower end of the detection guide rod, and the liquid flow measuring device also comprises: the connecting rod is positioned in the pipeline; the liquid flow velocity probe is used for measuring the flow velocity of liquid in a pipeline, the liquid flow velocity probe 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 measures the flow velocity of liquid in a pipeline through a liquid flow velocity probe, then measures the liquid level height of the change of the pipeline through a floating ball type liquid level meter, converts the liquid level height into a real-time fluid section, and multiplies the flow velocity and the fluid section to obtain the real-time flow of the liquid in the pipeline.
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 meters for measuring the inside of a water channel pipeline mostly adopt an ultrasonic flow meter and a worm wheel flow meter, the liquid flow in the water channel pipeline is suddenly high and suddenly low and fluctuated, for example, in a residential area, the water flow during a meal point is large, so that the liquid flow in the water channel pipeline is high, the water consumption at other time is possibly small, the liquid flow in the corresponding water channel pipeline is low, and the ultrasonic flow meter is not suitable for the ultrasonic flow meter; the worm wheel flowmeter is not suitable for measuring the liquid flow rate, but is difficult to measure the liquid level height changed in the water channel pipeline, and the total liquid flow in the water channel pipeline is difficult to measure.
Therefore, a liquid flow rate measuring apparatus capable of measuring the flow rate and the changed liquid level height of the liquid in the water channel is required.
Disclosure of Invention
The invention aims to provide a liquid flow measuring device capable of measuring the liquid flow speed and the changed liquid level height in a waterway pipeline.
In order to solve the above technical problem, the present invention provides a liquid flow measuring device, including a floating ball type level meter for measuring a liquid level height in a pipe, wherein the floating ball type level meter includes a detection guide rod, a transmitter, a floating ball and a stopper, the stopper is disposed at a lower end of the detection guide rod, and further including:
a connecting rod located within the duct;
the liquid flow velocity probe is used for measuring the flow velocity of liquid in the pipeline, the liquid flow velocity probe 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 liquid in the pipeline is measured by a 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 measuring process, in order to ensure that the liquid flow velocity probe can accurately measure the flow velocity 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 velocity probe is positioned in the liquid in the pipeline due to the position below the floating ball, so that the situation that the liquid flow velocity probe is simply fixed in the pipeline, the flow velocity of the liquid in the pipeline cannot be measured due to the fact that the water level is too low, or the liquid flow velocity probe is blocked by impurities in the pipeline is avoided to be measured; and then the liquid level height of the change of the pipeline is measured by a floating ball type liquid level meter, the liquid level height is converted into a real-time fluid section, and the real-time flow of the liquid in the pipeline is obtained by multiplying the flow speed and the fluid section.
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 stably arranged on the pipeline so as to prevent water in the pipeline from impacting the floating ball type liquid level meter, so that the installation structure of the floating ball type liquid level meter is unstable and 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, assembling and maintaining the floating ball type liquid level meter.
Further, fixed establishment includes mounting panel and anchor ring, the port both sides of pipeline all excavate the cardboard groove that extends to the pipe outer wall by the inside pipe wall, be equipped with the ring channel on the port pipe surface of pipeline, the ring channel passes the cardboard groove, the flange card of mounting panel is put in the cardboard inslot, anchor ring looks adaptation ground is fixed in the ring channel, anchor ring with the mounting panel contacts, it is vertical to pass to detect the guide arm the mounting panel and with mounting panel looks fixed connection, in this design, through the fixed purpose that detects the guide arm with this reaches the installation liquid level of mounting panel, the mounting panel is put at the cardboard inslot through the card and with this preliminary fixed of reaching the mounting panel, and the rethread anchor ring suppresses the mounting panel, finally reaches the purpose of stabilizing the mounting panel.
Furthermore, the liquid flow measuring device further comprises a reinforcing mechanism, the reinforcing mechanism comprises two extrusion rings and a connecting strip for connecting the two extrusion rings, the extrusion rings are made of elastic materials and 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, and the extrusion rings are extruded between the anchoring rings and the annular grooves, so that the anchoring rings are connected between the annular grooves more closely, the purpose of fixing the mounting plate is achieved indirectly, the connecting strip is used for connecting the two extrusion rings, and the two extrusion rings can be placed between the anchoring rings and the annular grooves conveniently.
Further, liquid flow measurement device still includes the safety cover, the top surface and the bottom surface of safety cover all are the opening form, mounting panel fixed connection be in the upper end of safety cover, the liquid flow rate probe is located the below of safety cover, when floater formula level gauge surveys the liquid level survey, the floater collides with the debris that the detection guide arm received in the pipeline liquid easily, can cause the damage to floater and detection guide arm, in order to avoid the appearance of above-mentioned phenomenon, the safety cover has been designed to install the safety cover on the mounting panel, in order to let the safety cover not influence the liquid flow rate survey of fluid flow rate probe, arrange the below of safety cover in with the liquid flow rate probe, reached the liquid flow rate survey that does not influence the liquid flow rate probe like this.
Further, the safety cover is including meeting liquid son cover and back of the body liquid son cover, the top surface, the side and the bottom surface of back of the body liquid son cover all are open state, the top surface of back of the body liquid son cover is fixed on the mounting panel, the side lower extreme of back of the body liquid son cover with meet the lower extreme of liquid son cover and rotate mutually and be connected, back of the body liquid son cover with meet between the contained angle that liquid son cover formed and be equipped with buffer spring, buffer spring's both ends respectively with back of the body liquid son cover and meet liquid son cover looks fixed connection, the mounting panel has the arc sliding section that extends to being close to detect the guide arm, the arc sliding section both ends of mounting panel are equipped with the stopper piece, meet the upper end of liquid son cover with the arc sliding section sliding connection of mounting panel, consider that the safety cover can self suffer the collision of debris when protecting the floater and detecting the guide arm, in order to reduce the damage that the safety cover suffers because of the collision, 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 the position where the front side faces the liquid flow, when the liquid-facing sub-cover is collided by sundries, particularly objects with heavy weight, the liquid-facing sub-cover can deflect around the liquid-back sub-cover, in the process, the upper end of the liquid-facing shield slides along the arc-shaped sliding section of the mounting plate, and because the buffer spring is arranged between the included angle formed by the liquid-back shield and the liquid-facing shield, and the two ends of the buffer spring are respectively and fixedly connected with the liquid back sub-cover and the liquid facing sub-cover, so that when the impact force of the sundries disappears, rely on buffer spring's elasticity, meet the liquid sub-cover and can resume towards initial position automatically, the setting of the arc sliding segment of mounting panel not only can provide the orbit that slides for meeting the upper end of liquid sub-cover, has also avoided meeting the upper end of liquid sub-cover if do not have the sheltering from can form the breach in the short time because of the deflection, debris can be directly from this breach entering safety cover in collision floater or detection guide arm.
Further, liquid flow measurement device still includes the cover plate, be equipped with the activity hole on the cover plate, cover plate detachably fixes the lower extreme of safety cover, the connecting rod is the L shape, the vertical pole section of connecting rod passes the activity hole and with the activity hole leaves the clearance, dog fixed connection be in on the cover plate, in order to reduce debris entering safety cover, prevent that debris from gathering too much in the both sides of detecting the guide arm in the safety cover, influence the removal of floater, designed the cover plate, cover plate can prevent very most debris entering safety cover in, nevertheless consider that the floater formula level gauge need survey the liquid level height and do not influence the removal of floater, set up the activity hole, the connecting rod can move in the activity hole under the drive of floater, liquid can get into the safety cover through the clearance in the pipeline.
Furthermore, the side wall of the protective cover is provided with a water inlet, and the water inlet is formed in the side wall of the protective cover in consideration of the slow liquid inflow speed of the gap, so that the liquid inflow speed in the protective cover is improved.
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 mounted 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, a column fixing hole is formed in the rod groove, the net mounting ring is mounted on the water inlet in a matched mode, 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 into the column fixing hole, and the filter screen is arranged for further preventing sundries from having the water inlet; in order to install the filter screen more conveniently and stably, the net installing ring and the installation rod connected with the net installing ring are arranged, wherein the installation rod is fixed in the fixed column hole through the fixed column so as to achieve the purpose of being fixed in the rod groove.
In summary, the liquid flow rate measuring device of the present invention measures the flow rate of the liquid in the pipeline through the liquid flow rate probe, then measures the liquid level height of the pipeline change through the floating ball type liquid level meter, and converts 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.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic connection diagram of the float level gauge, the fixing mechanism and the pipeline;
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 view of the attachment of the filter screen to the screen mounting ring;
FIG. 6 is a side wall section of the boot;
in the figure: 10. a float level gauge; 101. detecting a guide rod; 102. a transmitter; 103. a floating ball; 104. a stopper; 20. a connecting rod; 30. a liquid flow rate probe; 40. a fixing mechanism; 401. mounting a plate; 4011. an arc-shaped sliding section; 4012. a stop block; 402. an anchoring ring; 50. a clamping plate groove; 60. an annular groove; 70. a reinforcement mechanism; 701. an extrusion ring; 702. a connecting strip; 80. a protective cover; 801. a liquid-facing shield; 802. a back liquid sub-cover; 803. a water inlet hole; 804. a rod groove; 805. a post fixing hole; 90. a buffer spring; 100. a cover plate; 1001. a movable hole; 110. mounting a rod; 1101. perforating; 120. installing a net ring; 130. a filter screen; 140. and (5) 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, including a floating ball type liquid level meter 10 for measuring the liquid level height in a pipe, wherein the floating ball type liquid level meter 10 includes a detecting guide rod 101, a transducer 102, a floating ball 103 and a stopper 104, the stopper 104 is disposed at the lower end of the detecting guide rod 101, and further including: a connecting rod 20 and a liquid flow rate probe 30. The floating ball type liquid level meter 10 is preferably a UHZ-50/D series top mounted magnetic floating ball type liquid level meter 10 manufactured by Anhui Tiankang group (Inc.).
Wherein the connecting rod 20 is located inside the pipeline;
the liquid flow rate probe 30 is used for measuring the flow rate of liquid in the pipeline, and preferably adopts a MGG/KL type flow rate meter, the liquid flow rate probe 30 is connected with the floating ball 103 through a connecting rod 20, and the liquid flow rate probe 30 is positioned below the floating ball 103.
The liquid flow rate probe 30 and the floating ball level gauge 10 are both products known in the art.
During operation, the flow velocity of the liquid in the pipeline is measured by the liquid flow velocity probe 30; in order to install 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 measuring process, in order to enable the liquid flow velocity probe 30 to accurately measure the flow velocity of liquid in the 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 velocity probe 30 is positioned in the liquid in the pipeline due to the position below the floating ball 103, so that the situation that the liquid flow velocity probe 30 is simply fixed in the pipeline, the flow velocity of the liquid in the pipeline cannot be measured due to the fact that the water level is too low, or the situation that the liquid flow velocity probe 30 is blocked by impurities in the pipeline is avoided, in the design, the liquid flow velocity probe 30 moves along with the movement of the floating ball 103 on the detection guide rod 101, the measured position changes, and the measured liquid flow velocity data is more accurate; the liquid level height of the change of the pipeline is measured by the floating ball type liquid level meter 10, 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 the 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 along with the liquid level, due to the magnetic action, a dry spring of the floating ball type liquid level meter 10 is attracted by magnetism, the position change information of the liquid level is converted into an electric signal, the actual height of the liquid is displayed by a display instrument by numbers, and then the actual height is converted into a real-time fluid cross section, the real-time flow of the liquid in the pipeline is obtained by multiplying the flow speed and the fluid cross section, and it needs to be explained that the data measured by the liquid flow velocity probe 30 and the floating ball type liquid level meter 10.
Example 2
As shown in fig. 2 and 3, the embodiment 2 is further extended from the embodiment 1, in order to reduce the structural instability caused by holding the improved liquid flow rate measuring device in the embodiment 1 by an inspector or simply placing the liquid flow rate measuring device on a pipeline, a fixing mechanism 40 is added in the original liquid flow rate 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 that the floating ball type liquid level meter 10 is prevented from being unstable in installation structure and damaged due to the fact that water in the pipeline impacts the floating ball type liquid level meter 10.
Example 3
As shown in fig. 2 and 3, the embodiment 3 is further extended from the embodiment 2, and considering that the fixing mechanism 40 can be fixed on the inner pipe wall of the pipe in an undetachable way, so that the fixing mechanism 40 is preferably detachably fixed, and the fixing mechanism 40 is designed into a detachable structure, so that the floating ball type liquid level meter 10 can be conveniently detached and maintained, and the liquid flow measuring device can be used for secondary transposition of the liquid flow measuring device.
Example 4
As shown in fig. 2 and 3, this embodiment 4 is further extended from embodiment 3, the fixing mechanism 40 preferably includes a mounting plate 401 and an anchoring ring 402, both sides of the port of the pipeline are dug with a clamping plate groove 50 extending from the inner wall of the pipeline to the outer wall of the pipeline, an annular groove 60 is arranged on the pipe surface of the port of the pipeline, 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 anchoring ring 402 is fittingly fixed in the annular groove 60, the anchoring ring 402 is in contact with the mounting plate 401, the detecting guide rod 101 vertically passes through the mounting plate 401 and is fixedly connected with the mounting plate 401, in the design, the detection guide rod 101 is fixed through the mounting plate 401 so as to achieve the purpose of mounting the liquid level, the mounting plate 401 is clamped in the clamping plate groove 50 so as to achieve the primary fixing of the mounting plate 401, the mounting plate 401 is pressed through the anchoring ring 402, and finally the purpose of stabilizing the mounting plate 401 is achieved.
Example 5
As shown in fig. 4, this embodiment 5 is further extended from 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 connecting strip 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 rubber material, the connecting strip 702 is made of steel material, the pressing rings 701 are pressed between the anchoring rings 402 and the annular groove 60, the pressing rings 701 in the reinforcing mechanism 70 are made of an elastic material, which has a certain elasticity and is squeezed between the anchoring ring 402 and the annular groove 60, so that the anchoring ring 402 is more tightly connected between the annular groove 60, indirectly achieving the purpose of fixing the mounting plate 401, and the connection bar 702 is used to connect the two pressing rings 701 so that the two pressing rings 701 can be easily interposed between the anchoring ring 402 and the annular groove 60.
Example 6
As shown in fig. 1, this embodiment 6 is further extended from embodiment 5, when the floating ball type liquid level meter 10 measures the liquid level, the floating ball 103 and the detection guide rod 101 are easily collided by the impurities in the pipe liquid, which may damage the floating ball 103 and the detection guide rod 101, in order to avoid the above phenomenon, the protective cover 80 is designed, the top surface and the bottom surface of the protective cover 80 are both open, the mounting plate 401 is fixedly connected to the upper end of the protective cover 80 to block the upper end of the protective cover 80, the liquid flow rate probe 30 is located below the protective cover 80, and the protective cover 80 is mounted on the mounting plate 401, in order to make the protective cover 80 not influence the liquid flow rate measurement of the liquid flow rate probe, the liquid flow rate probe 30 is located below the protective cover 80, thus achieving the liquid flow rate measurement without influencing the liquid flow rate probe 30.
Example 7
As shown in fig. 1, this embodiment 7 is further extended from embodiment 6, the protection cover 80 includes 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 open 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 rotatably connected with the lower end of the liquid-facing sub-cover 801, a buffer spring 90 is disposed between the liquid-facing sub-cover 802 and the liquid-facing sub-cover 801, two ends of the buffer spring 90 are respectively fixedly connected with the liquid-facing sub-cover 802 and the liquid-facing sub-cover 801, the mounting plate 401 has an arc-shaped sliding section 4011 extending to be close to the detection guide rod 101, the distance between the arc-shaped sliding section 4011 and the detection guide rod 101 is maintained at not less than 2cm, two ends of the arc-shaped sliding section 4011 of the mounting plate 401 are provided with a position stop block 401801, the upper end of the liquid-facing sub-cover is slidably connected with the arc, the protection cover 80 is designed into a liquid-facing sub cover 801 and a liquid-back sub cover 802, wherein the liquid-facing sub cover 801 is positioned at a position facing the liquid to flow in from the front, when the liquid-facing sub cover 801 is collided by the sundries, particularly heavy objects, the liquid-facing sub cover 801 deflects around the liquid-back sub cover 802, in the process, the upper end of the liquid-facing sub cover 801 slides along an 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, the buffer spring 90 is arranged between the liquid-back sub cover 802 and the liquid-facing sub cover 801, and two ends of the buffer spring 90 are respectively fixedly connected with the liquid-back sub cover 802 and the liquid-facing sub cover 801, so that when the impact force of the sundries disappears, the liquid-facing sub cover 801 can automatically recover towards the initial position by virtue of the elasticity of the buffer spring 90, and the elasticity that this buffer spring 90 provided is big enough for the deflection angle that meets liquid sub-cover 801 is not big, and then meets the opening range that liquid sub-cover 801 formed when deflecting is not big, and the setting of the arc section 4011 of mounting panel 401 not only can provide the slide orbit for meeting the upper end of liquid sub-cover 801, has also avoided meeting the upper end of liquid sub-cover 801 and can form big breach in the short time because of the deflection if there is not sheltering from, debris can directly get into in safety cover 80 collision floater 103 or detect guide arm 101 from this breach.
Example 8
As shown in fig. 1, this embodiment 8 is further extended from embodiment 7, in order to reduce the entry of impurities into the protective cover 80, prevent the impurities from being excessively accumulated in the protective cover 80 and blocking at two sides of the detection guide rod 101, and affect the movement of the floating ball 103, the sealing cover 100 is designed, the sealing cover 100 is provided with a movable hole 1001, the sealing cover 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 has a gap with the movable hole 1001, the gap is maintained at 2-4mm, the stopper 104 is fixedly connected to the sealing cover 100, the sealing cover 100 can prevent most impurities from entering the protective cover 80, but considering that the floating ball type liquid level gauge 10 needs to measure the liquid level height and does not affect 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, liquid in the conduit can enter the boot 80 through the gap.
Example 9
As shown in fig. 6, this embodiment 9 is further extended from embodiment 8, and in consideration of a too low inflow rate of the liquid into the gap, a water inlet 803 is provided in a side wall of the protective cover 80 to increase the inflow rate of the liquid into the protective cover 80.
Example 10
As shown in fig. 5, this embodiment 10 is further extended from embodiment 1, the liquid flow rate measuring apparatus further includes a mounting rod 110, a net mounting ring 120, a filter net 130, and a fixing post 140, the filter net 130 is mounted on the net 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 net mounting ring 120 is equal to an inner diameter of the water inlet 803, so that the net mounting ring 120 is fittingly and fixedly mounted on the water inlet 803, a through hole 1101 is provided on the mounting rod 110, the mounting rod 110 and the net mounting ring 120 are fixedly connected by welding, etc., the mounting rod 110 is placed 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 achieve the purpose of being fixed in the rod groove 804, the fixing post 140 is connected in the fixing post hole 1101 through the through hole, an outer diameter of the fixing post, the fixed column 140 can be fixedly arranged in the fixed column hole 805, and a filter screen 130 is arranged for further preventing impurities from having a water inlet 803; in order to more conveniently and stably install the filter screen 130, the net mounting ring 120 and the installation rod 110 connected with the net mounting ring 120 are provided, the filter screen 130 is preferably made of a steel wire mesh with small holes and fixed on the inner ring side wall of the net mounting ring 120 by welding, or wrapped on the outer side of the net mounting ring 120, in a word, the filter screen 130 covers the whole ring hole of the net mounting ring 120, so that impurities are blocked outside the protective cover 80 when passing through the ring hole, wherein the installation rod 110 is fixed in the rod fixing hole 805 through the fixing column 140 for achieving the purpose of being fixed in the rod groove 804.
In summary, the liquid flow rate measuring device of the present invention measures the flow rate of the liquid in the pipe through the liquid flow rate probe 30, measures the liquid level height of the pipe change through the floating ball type liquid level meter 10, converts the liquid level height into the real-time fluid cross section, and multiplies the flow rate and the fluid cross section to obtain the real-time flow rate of the liquid in the pipe.
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 embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a liquid flow survey device, is including being used for surveing the ball-type level gauge (10) of liquid level height in the pipeline, ball-type 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 conduit;
the liquid flow velocity probe (30) is used for measuring the flow velocity of liquid in a pipeline, the liquid flow velocity probe (30) is connected with the floating ball (103) through the connecting rod (20), and the liquid flow velocity probe (30) is located below the floating ball (103).
2. The liquid flow rate measuring device according to claim 1, wherein: 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).
3. The liquid flow rate measuring device according to claim 2, wherein: the fixing mechanism (40) is detachably fixed on the inner side pipe wall of the pipeline.
4. The liquid flow rate measuring device according to claim 3, wherein: fixing mechanism (40) include mounting panel (401) and anchor ring (402), the port both sides of pipeline all excavate cardboard groove (50) that extend to the pipe outer wall by the inside pipe wall, be equipped with ring channel (60) on the port pipe face of pipeline, ring channel (60) pass cardboard groove (50), the flange card of mounting panel (401) is put in cardboard groove (50), anchor ring (402) are fixed with the looks adaptation in ring channel (60), anchor ring (402) with mounting panel (401) contact, it is vertical to detect guide arm (101) pass mounting panel (401) and with mounting panel (401) looks fixed connection.
5. The liquid flow rate measuring device according to claim 4, wherein: 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 ring (402) and the annular groove (60).
6. The liquid flow rate measuring device according to claim 5, wherein: liquid flow measurement device still includes safety cover (80), the top surface and the bottom surface of safety cover (80) all are the opening form, mounting panel (401) fixed connection be in the upper end of safety cover (80), liquid velocity of flow probe (30) are located the below of safety cover (80).
7. The liquid flow rate measuring device according to claim 6, wherein: the protective cover (80) comprises 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 back liquid sub-cover (802) are all in an open state, the top surface of the back liquid sub-cover (802) is fixed on the mounting plate (401), the lower end of the side surface of the liquid back sub-cover (802) is rotationally connected with the lower end of the liquid receiving sub-cover (801), the buffer spring (90) is arranged between the included angle formed by the liquid back sub-cover (802) and the liquid facing sub-cover (801), two ends of the buffer spring (90) are respectively and fixedly connected with the liquid back sub-cover (802) and the liquid receiving sub-cover (801), the mounting plate (401) has an arc-shaped sliding section (4011) extending to be close to the detection guide rod (101), two ends of the arc-shaped sliding section (4011) of the mounting plate (401) are provided with stop blocks (4012), the upper end of the liquid-facing sub-cover (801) is in sliding connection with the arc-shaped sliding section (4011) of the mounting plate (401).
8. The liquid flow rate measuring device according to claim 7, wherein: liquid flow measurement device still includes cover plate (100), be equipped with activity hole (1001) on cover plate (100), cover plate (100) detachably fixes the lower extreme of safety cover (80), connecting rod (20) are the L shape, the vertical pole section of connecting rod (20) passes activity hole (1001) and with activity hole (1001) leave the clearance, dog (104) fixed connection be in cover plate (100) is last.
9. The liquid flow rate measuring device according to claim 8, wherein: and a water inlet hole (803) is formed in the side wall of the protective cover (80).
10. The liquid flow rate measuring device according to claim 9, wherein: the liquid flow measuring device further comprises a mounting rod (110), a net mounting ring (120), a filter screen (130) and a fixing column (140), wherein the filter screen (130) is filled on the net 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 net mounting ring (120) is mounted on the water inlet hole (803) in a matched mode, a through hole (1101) is formed in the mounting rod (110), the mounting rod (110) is fixedly connected with the net mounting ring (120), the mounting rod (110) is arranged in the rod groove (804), and the fixing column (140) penetrates through the through hole (1101) and is connected into the fixing column hole (805).
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