CN114076619A - Energy dissipation and flow measurement system for water supply pipeline - Google Patents
Energy dissipation and flow measurement system for water supply pipeline Download PDFInfo
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- CN114076619A CN114076619A CN202111346987.9A CN202111346987A CN114076619A CN 114076619 A CN114076619 A CN 114076619A CN 202111346987 A CN202111346987 A CN 202111346987A CN 114076619 A CN114076619 A CN 114076619A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 76
- 238000005259 measurement Methods 0.000 title abstract description 21
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
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- 230000009467 reduction Effects 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 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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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/072—Arrangement of flowmeters
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
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Abstract
The invention provides an energy dissipation and flow measurement system for a water supply pipeline, and relates to the technical field of energy dissipation and flow measurement, wherein the energy dissipation and flow measurement system for the water supply pipeline comprises an operation box, a water inlet pipe, an energy dissipation assembly and a flow measurement assembly; the water inlet pipe is arranged in the operation box; the energy dissipation component is connected to the tail end of the water inlet pipe, is positioned in the operation box and is communicated with the interior of the operation box; the current measuring assembly comprises a current stabilizing structure arranged in the operation box and a thin-wall weir arranged in the operation box; the flow stabilizing structure is positioned between the energy dissipation assembly and the thin-wall weir and is used for slowing down water level fluctuation; be equipped with water level monitor and flowmeter on the operation box, the water level monitor is connected with the flowmeter electricity, and the water level monitor is used for monitoring the depth of water apart from the upper reaches L department of thin-walled weir to with depth of water information transmission to flowmeter, flowmeter received depth of water information and calculate the flow that thin-walled weir passed through. The technical problems that energy dissipation and flow measurement in the prior art are independently arranged and cannot be realized in one device are solved.
Description
Technical Field
The invention relates to the technical field of energy dissipation and flow measurement, in particular to an energy dissipation and flow measurement system for a water supply pipeline.
Background
With the development of industrialization and urbanization, centralized water supply becomes more and more important. In some areas, a water pool is built at the mountain top by using the advantage of terrain, and due to the fact that the fall is large, the pressure of a pipeline at the downstream is also large.
However, in the process of supplying water through a gravity flow pipeline, the problems of energy dissipation and pressure reduction at the tail end of the pipeline, flow measurement and the like also exist, in the prior art, the pressure reduction and energy dissipation are generally realized only by changing the flow area of a pressure reduction device, the flow measurement purpose is realized through a flowmeter, and the energy dissipation and the flow measurement are independently arranged, so that the realization in one device cannot be realized.
Disclosure of Invention
The invention aims to provide an energy dissipation and flow measurement system for a water supply pipeline, which aims to solve the technical problem that energy dissipation and flow measurement in the prior art are independently arranged and cannot be realized in one device.
The invention provides an energy dissipation and flow measurement system for a water supply pipeline, which comprises: the device comprises an operation box, a water inlet pipe, an energy dissipation assembly and a flow measuring assembly;
the water inlet pipe is arranged in the operation box;
the energy dissipation component is connected to the tail end of the water inlet pipe, is positioned in the operation box and is communicated with the interior of the operation box;
the current measuring assembly comprises a current stabilizing structure arranged in the operating box and a thin-wall weir arranged in the operating box; the flow stabilizing structure is positioned between the energy dissipation assembly and the thin-wall weir and is used for slowing down water level fluctuation;
the water level monitoring device is used for monitoring the distance between the water level monitoring device and the flowmeter, water depth information is sent to the flowmeter, and the flowmeter receives the water depth information and calculates the flow passing through by the thin-wall weir.
In an alternative embodiment, the flow stabilizing structure comprises a plurality of baffles, the baffles divide the interior of the operation box into a first space, a second space and a third space which are arranged from left to right, the energy dissipation assembly is positioned in the first space, and the thin-wall weir is positioned in the third space;
the first space is communicated with the second space through an overflow port, the second space is communicated with the third space through a water passing port, and the height of the overflow port is larger than that of the water passing port.
In an alternative embodiment, the baffles are respectively an overflow plate and a steady flow plate;
the bottom end of the overflow plate is fixedly connected to the bottom wall of the operation box, and the overflow port is formed between the top end of the overflow plate and the top wall of the operation box;
the top end of the flow stabilizing plate is fixedly connected to the top wall of the operating box, and the water passing port is formed between the bottom end of the flow stabilizing plate and the bottom wall of the operating box;
the top end of the overflow plate is higher than the bottom end of the flow stabilizing plate.
In an alternative embodiment, the water level monitor is positioned immediately above the thin-walled weir upstream L.
In an alternative embodiment, the weir water depth of the thin-walled weir is H;
l is 5-8 times larger than H, and H is the distance between the top end of the thin-wall weir and the water surface in the operation box.
In an alternative embodiment, a conversion module is provided within the flow meter;
the conversion module is used for converting the water depth information into weir water depth, and the weir water depth is the difference between the water depth at the upstream L of the thin-wall weir and the height of the thin-wall weir.
In an alternative embodiment, the outer side wall of the thin-wall weir is provided with a flow guide device, and the flow guide device comprises a flow guide groove which is arranged in a downward inclination manner along a direction far away from the outer side wall of the thin-wall weir.
In an alternative embodiment, one end of the diversion trench is hinged with the outer side wall of the thin-wall weir;
the flow guiding device further comprises a supporting rod and an expansion joint arranged on the supporting rod, the supporting rod is hinged between the flow guiding groove and the outer side wall of the thin-wall weir, and the expansion joint is used for controlling the length of the supporting rod so as to adjust the inclination angle of the flow guiding groove.
In an optional embodiment, the energy dissipation assembly comprises an energy dissipation outer cylinder and an energy dissipation inner cylinder which move relatively in the vertical direction, the energy dissipation outer cylinder is provided with a plurality of groups of spray holes in the vertical direction, and the opening number of the spray holes can be adjusted through the relative movement of the energy dissipation outer cylinder and the energy dissipation inner cylinder.
In an alternative embodiment, the water inlet pipe comprises a bent pipe section and a vertical section, and an outlet of the vertical section is connected with the energy dissipation outer cylinder;
the energy dissipation inner cylinder is connected with an axis driving mechanism;
the central line of the inlet of the elbow section is horizontally arranged.
Has the advantages that:
according to the water supply pipeline energy dissipation flow measuring system provided by the invention, the energy dissipation assembly is connected to the tail end of the water inlet pipe, is positioned in the operation box and is communicated with the inside of the operation box, and when the system is used specifically, the energy dissipation and pressure regulation can be carried out on water flow flowing out of the water inlet pipe; the flow measuring assembly comprises a flow stabilizing structure arranged in the operating box and a thin-wall weir arranged in the operating box, and the flow stabilizing structure is positioned between the energy dissipation assembly and the thin-wall weir and is used for slowing down water level fluctuation; be equipped with water level monitor and flowmeter on this control box, the water level monitor with the flowmeter electricity is connected, and the water level monitor is used for monitoring the depth of water apart from the upper reaches L department of thin-walled weir to with depth of water information transmission to flowmeter, flowmeter received depth of water information and calculate the flow that the thin-walled weir passed through.
Therefore, the water supply pipeline energy dissipation flow measurement system can simultaneously achieve two purposes of energy dissipation and flow measurement, can be combined with civil engineering in actual engineering application to form a systematic product, reduces the trouble of installing various devices, saves land resources, reduces the problems of land acquisition for immigration and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a longitudinal cross-sectional view of a water supply pipeline energy dissipation flow measuring system provided in an embodiment of the present invention;
fig. 2 is a cross-sectional view of a portion of the control box, thin-walled weir, overflow plate and flow stabilizer, wherein the arrows indicate the direction of flow of the water.
Icon:
100-an operation box; 110 — a first space; 120-a second space; 130-a third space; 140-a relief valve; 150-a vent;
200-water inlet pipe;
300-energy dissipating components; 310-energy dissipation outer cylinder; 320-energy dissipation inner cylinder; 330-a shaft rod; 340-a motor; 350-a threaded sleeve; 360-a fixed mount;
410-a thin-walled weir; 420-an overflow plate; 430-a flow stabilizer; 421-an overflow port; 431-a water passing port;
500-water level monitor;
600-a flow meter;
700-a flow guide device; 710-a flow guide groove; 720-support rods; 730-expansion joint; 740-support.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, the present embodiment provides an energy dissipation and flow measurement system for a water supply pipeline, which includes an operation box 100, a water inlet pipe 200, an energy dissipation assembly 300 and a flow measurement assembly; the water inlet pipe 200 is installed in the operation box 100; the energy dissipation assembly 300 is connected to the end of the water inlet pipe 200, the energy dissipation assembly 300 is positioned inside the operation box 100 and is communicated with the inside of the operation box 100; the current measuring assembly comprises a current stabilizing structure arranged in the operation box 100 and a thin-wall weir 410 arranged in the operation box 100; the flow stabilizing structure is positioned between the energy dissipation assembly 300 and the thin-wall weir 410 and is used for slowing down water level fluctuation; the operation box 100 is provided with a water level monitor 500 and a flowmeter 600, the water level monitor 500 is electrically connected with the flowmeter 600, the water level monitor 500 is used for monitoring the water depth at the position L from the upstream of the thin-wall weir 410 and sending the water depth information to the flowmeter 600, and the flowmeter 600 receives the water depth information and calculates the flow rate of the thin-wall weir 410.
In the water supply pipeline energy dissipation flow measuring system provided by the embodiment, the energy dissipation component 300 is connected to the tail end of the water inlet pipe 200, the energy dissipation component 300 is located inside the operation box 100 and is communicated with the inside of the operation box 100, and when the system is used specifically, energy dissipation and pressure regulation can be performed on water flow flowing out of the water inlet pipe 200; because the current measuring component comprises a steady flow structure arranged in the operation box 100 and a thin-wall weir 410 arranged in the operation box 100, the steady flow structure is positioned between the energy dissipation component 300 and the thin-wall weir 410 and is used for slowing down water level fluctuation, water flow after energy dissipation and pressure regulation can flow to the thin-wall weir 410 through the steady flow structure, the problem of water level fluctuation in a short distance can be solved under the action of the steady flow structure, and accurate current measurement can be realized by combining the thin-wall weir 410; the operation box 100 is provided with a water level monitor 500 and a flowmeter 600, the water level monitor 500 is electrically connected with the flowmeter 600, the water level monitor 500 is used for monitoring the water depth from the upstream L of the thin-wall weir 410 and sending the water depth information to the flowmeter 600, and the flowmeter 600 receives the water depth information and calculates the flow rate of the thin-wall weir 410.
Further, referring to fig. 1 and 2, the flow stabilizing structure includes a plurality of baffles, the baffles divide the interior of the operation box 100 into a first space 110, a second space 120 and a third space 130 which are arranged left and right, the energy dissipation assembly 300 is located in the first space 110, and the thin-walled weir 410 is located in the third space 130; the first space 110 is communicated with the second space 120 through the overflow port 421, the second space 120 is communicated with the third space 130 through the water passing port 431, and the height of the overflow port 421 is greater than that of the water passing port 431.
Specifically, the plurality of baffles are an overflow plate 420 and a flow stabilizing plate 430; the bottom end of the overflow plate 420 is fixedly connected to the bottom wall of the operation box 100, and an overflow port 421 is formed between the top end of the overflow plate 420 and the top wall of the operation box 100; the top end of the flow stabilizing plate 430 is fixedly connected to the top wall of the operation box 100, and a water passing opening 431 is formed between the bottom end of the flow stabilizing plate 430 and the bottom wall of the operation box 100; the top end of the overflow plate 420 is higher than the bottom end of the stabilizing plate 430.
In this embodiment, the water level monitor 500 is disposed right above the upstream L from the thin-wall weir 410, and thus, the water level monitor 500 can accurately monitor the water depth information at the upstream L from the thin-wall weir 410.
Further, the weir water depth of the thin-wall weir 410 is H; l is 5-8 times larger than H, so that the upstream water level of the thin-wall weir 410 can be ensured to be stable, and the flow measurement is more accurate; h is the distance between the top of the thin-walled weir 410 and the water surface in the operation box 100, and the value of L can be obtained by the water depth H on the weir.
In this embodiment, a conversion module is disposed in the flow meter 600; the conversion module is used for converting the water depth information into weir water depth H, wherein the weir water depth H is the difference between the water depth L at the upstream of the thin-wall weir 410 and the height of the thin-wall weir 410.
It should be noted that when the water surface line is close to the thin-wall weir 410, the water surface line will drop, and at a certain distance upstream of the thin-wall weir 410, the water level is relatively stable, and the accuracy of the measured flow value is relatively high.
It is further noted that integrating the conversion module into the flow meter 600 and implementing the corresponding conversion operation will be clear to and can be implemented by those skilled in the art.
Referring to fig. 1, the outer sidewall of the thin-walled weir 410 is provided with a flow guiding device 700, the flow guiding device 700 includes a flow guiding groove 710, and the flow guiding groove 710 is disposed in a downward inclination manner along a direction away from the outer sidewall of the thin-walled weir 410.
Wherein, the inclination angle of the guiding gutter 710 is adjustable.
Specifically, one end of the guiding gutter 710 is hinged to the outer side wall of the thin-walled weir 410; the diversion device 700 further comprises a support rod 720 and an expansion joint 730 arranged on the support rod 720, the support rod 720 is hinged between the diversion trench 710 and the outer side wall of the thin-wall weir 410, the expansion joint 730 is used for controlling the length of the support rod 720 so as to adjust the inclination angle of the diversion trench 710, the length is changed under the control of the expansion joint 730, the angle of the diversion trench 710 is further adjusted, and the adaptability to the terrain conditions is strong.
Optionally, a support 740 is arranged on the outer side wall of the thin-wall weir 410, and the lower end of the support rod 720 is hinged to the support 740.
In this embodiment, the bottom of the thin-wall weir 410 is provided with the drain valve 140, and impurities in the water inlet pipe 200 can be periodically discharged by opening the drain valve 140; the top of the operation box 100 is provided with a vent hole 150.
Having described the specific structure of the flow measuring assembly, the specific structure of the energy dissipating assembly 300 is described next.
The energy dissipating elements 300 may be of the prior art or may be the energy dissipating elements 300 shown in figure 1.
Specifically, the energy dissipation assembly 300 comprises an energy dissipation outer cylinder 310 and an energy dissipation inner cylinder 320 which move relatively in the vertical direction, the energy dissipation outer cylinder 310 is provided with a plurality of groups of spray holes in the vertical direction, and the opening number of the spray holes can be adjusted through the relative movement of the two.
In brief, the plurality of groups of spray holes can be arranged into two groups, three groups, four groups or more, wherein each group is provided with a plurality of spray holes which are arranged at intervals on the circumference; when the energy dissipation inner cylinder 320 moves vertically downwards relative to the energy dissipation outer cylinder 310, the number of groups of open spray holes can be reduced, and conversely, the number of groups of open spray holes can be increased. At a fixed position, multiple orifices of the same group can be opened simultaneously.
In one embodiment of the present application, the water inlet pipe 200 includes a bent pipe section and a vertical section, and an outlet of the vertical section is connected to the energy dissipation outer cylinder 310; the energy dissipation inner cylinder 320 is connected with an axis driving mechanism; the central line of the inlet of the elbow section is horizontally arranged, so that the installation and fixation of the water inlet pipe 200 are facilitated, and meanwhile, the elbow section is convenient to be communicated with other pipelines.
Alternatively, the axis driving mechanism may be a push rod motor or other linear driving mechanism, etc.
In this embodiment, referring to fig. 1, the axis driving mechanism includes a shaft 330, a motor 340, and a threaded sleeve 350, one end of the shaft 330 is fixedly connected to the energy dissipating inner cylinder 320, the other end of the shaft 330 is in transmission connection with the motor 340 and in threaded connection with the threaded sleeve 350, the threaded sleeve 350 is fixedly connected to the water inlet pipe 200 through a fixing frame 360, and the specific threaded sleeve 350 is fixedly connected to the bent pipe section of the water inlet pipe 200 through the fixing frame 360.
When the energy dissipation inner cylinder 320 works, the motor rotates the shaft lever, and the threaded sleeve is fixed, so that the shaft lever moves axially while rotating to drive the energy dissipation inner cylinder 320 to move.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a water supply pipe energy dissipation flow gauging system which characterized in that includes: the device comprises an operation box (100), a water inlet pipe (200), an energy dissipation assembly (300) and a flow measuring assembly;
the water inlet pipe (200) is mounted on the operation box (100);
the energy dissipation assembly (300) is connected to the tail end of the water inlet pipe (200), the energy dissipation assembly (300) is positioned in the interior of the operation box (100) and is communicated with the interior of the operation box (100);
the current measuring assembly comprises a current stabilizing structure arranged in the operation box (100) and a thin-wall weir (410) arranged in the operation box (100); the flow stabilizing structure is positioned between the energy dissipation assembly (300) and the thin-wall weir (410) and is used for slowing water level fluctuation;
be equipped with water level monitor (500) and flowmeter (600) on control box (100), water level monitor (500) with flowmeter (600) electricity is connected, water level monitor (500) are used for monitoring the distance the water depth of the upper reaches L department of thin-walled weir (410) to with the depth of water information send to flowmeter (600), flowmeter (600) are received the depth of water information calculates the flow that thin-walled weir (410) pass through.
2. The water supply pipeline energy-dissipating flow measuring system according to claim 1, wherein the flow stabilizing structure comprises a plurality of baffles which divide the interior of the operation box (100) into a first space (110), a second space (120) and a third space (130) which are arranged in the left and right, the energy-dissipating assembly (300) is positioned in the first space (110), and the thin-walled weir (410) is positioned in the third space (130);
the first space (110) is communicated with the second space (120) through an overflow port (421), the second space (120) is communicated with the third space (130) through a water passing port (431), and the height of the overflow port (421) is larger than that of the water passing port (431).
3. The water supply pipeline energy dissipation flow measuring system of claim 2, wherein the plurality of baffles are an overflow plate (420) and a flow stabilizing plate (430), respectively;
the bottom end of the overflow plate (420) is fixedly connected to the bottom wall of the operation box (100), and the overflow port (421) is formed between the top end of the overflow plate (420) and the top wall of the operation box (100);
the top end of the flow stabilizing plate (430) is fixedly connected to the top wall of the operation box (100), and the water passing opening (431) is formed between the bottom end of the flow stabilizing plate (430) and the bottom wall of the operation box (100);
the top end of the overflow plate (420) is higher than the bottom end of the flow stabilizing plate (430).
4. The water supply pipe energy dissipation flow gauging system according to claim 1, wherein said water level monitor (500) is positioned directly above an upstream L from said thin-walled weir (410).
5. The water supply pipeline energy dissipating flow gauging system of claim 1, wherein the weir of said thin walled weir (410) has a water depth H;
l is 5-8 times larger than H, and H is the distance between the top end of the thin-wall weir (410) and the water surface in the operation box (100).
6. The water supply pipeline energy dissipation flow measuring system according to claim 5, wherein a conversion module is arranged in the flow meter (600);
the conversion module is used for converting the water depth information into the water depth on the weir, wherein the water depth on the weir is the difference between the water depth at the position L away from the upstream of the thin-wall weir (410) and the height of the thin-wall weir (410).
7. The water supply pipe energy dissipating flow measuring system of claim 1, wherein the outer sidewall of the thin-walled weir (410) is provided with a flow guide device (700), the flow guide device (700) comprising a flow guide channel (710), the flow guide channel (710) being arranged to slope downwardly in a direction away from the outer sidewall of the thin-walled weir (410).
8. The water supply pipeline energy dissipating flow measuring system of claim 7, wherein one end of the diversion trench (710) is hinged to an outer sidewall of the thin-walled weir (410);
the flow guiding device (700) further comprises a supporting rod (720) and an expansion joint (730) arranged on the supporting rod (720), the supporting rod (720) is hinged between the flow guiding groove (710) and the outer side wall of the thin-wall weir (410), and the expansion joint (730) is used for controlling the length of the supporting rod (720) so as to adjust the inclination angle of the flow guiding groove (710).
9. The water supply pipeline energy dissipation flow measuring system according to any one of claims 1 to 8, wherein the energy dissipation assembly (300) comprises an energy dissipation outer cylinder (310) and an energy dissipation inner cylinder (320) which are vertically relatively moved, the energy dissipation outer cylinder (310) is vertically provided with a plurality of groups of spray holes, and the opening number of the spray holes can be adjusted through the relative movement of the energy dissipation outer cylinder and the energy dissipation inner cylinder.
10. The water supply pipeline energy dissipation flow measuring system according to claim 9, wherein the water inlet pipe (200) comprises a bent pipe section and a vertical section, and an outlet of the vertical section is connected with the energy dissipation outer cylinder (310);
the energy dissipation inner cylinder (320) is connected with an axis driving mechanism;
the central line of the inlet of the elbow section is horizontally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346987.9A CN114076619A (en) | 2021-11-15 | 2021-11-15 | Energy dissipation and flow measurement system for water supply pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111346987.9A CN114076619A (en) | 2021-11-15 | 2021-11-15 | Energy dissipation and flow measurement system for water supply pipeline |
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| CN114076619A true CN114076619A (en) | 2022-02-22 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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