CN108716940B - Measuring method for hydraulic parameters of measuring weir - Google Patents
Measuring method for hydraulic parameters of measuring weir Download PDFInfo
- Publication number
- CN108716940B CN108716940B CN201810500027.5A CN201810500027A CN108716940B CN 108716940 B CN108716940 B CN 108716940B CN 201810500027 A CN201810500027 A CN 201810500027A CN 108716940 B CN108716940 B CN 108716940B
- Authority
- CN
- China
- Prior art keywords
- water
- water outlet
- measuring
- buffer
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/20—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of weight, e.g. to determine the level of stored liquefied gas
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The measuring method of hydraulic parameters of the water measuring weir implements the measurement of the hydraulic parameters by using a measuring mode provided by the measuring device of the hydraulic parameters of the water measuring weir, converts the specific water level according to the buoyancy action of water and the measured value of a weighing sensor, has high measuring precision, effectively reduces the error of manual reading, and is provided with a buffer mechanism between a water inlet mechanism and a water outlet mechanism, thereby avoiding the impact caused by larger water level difference; meanwhile, a water level and fluctuation measuring mechanism of the water gaging weir hydraulic parameter measuring device is connected with a remote upper computer, received data are comprehensively processed by the water level and fluctuation measuring mechanism and then transmitted to the remote upper computer, so that hydrological intelligent monitoring of local areas and even national level areas is realized in real time, and a decision basis is provided for guiding hydraulic engineering construction, water use scheduling and flood prevention and waterlogging prevention through processing of accumulated data.
Description
Technical Field
The invention relates to the technical field of hydraulic parameter measurement, in particular to a measuring weir hydraulic parameter measuring method.
Background
In irrigation works in irrigated areas, the water flow of a measuring weir is related to downstream irrigation water, and the water flow is related to environment, agriculture and economic benefits in scheduling, so that the measuring weir is required to accurately measure the water flow, the precision of a water level gauge is very critical, and the existing water level testing equipment has the following defects:
1. the precision is not high, and the requirement of 5 mm of precision can not be met generally;
2. the reading is inconvenient, the manpower is consumed, and the interference of human factors is large;
3. the measuring weir is subjected to rapid and turbulent water flow, so that the impact of the water flow is large, and the measurement is difficult;
4. the water level range is limited, the reading deviation is large, and the accuracy error is easy to increase after long-term use;
5. the water level measurement is only limited to a single monitoring point, the influence on the water level under different flow rates is not considered comprehensively, the hydrological intelligent monitoring on local areas and even national level areas can not be realized, and a decision basis is provided for guiding the hydraulic engineering construction, water dispatching and flood prevention and waterlogging prevention;
therefore, the development of a device which can reduce the labor intensity of workers, improve the measurement precision and provide a decision basis for guiding the construction of hydraulic engineering, dispatching water consumption, flood prevention and waterlogging prevention has become a problem to be solved by the technical personnel in the field.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a measuring method for hydraulic parameters of a water weir, so as to solve the above-mentioned drawbacks in the background art.
The technical problem solved by the invention is realized by adopting the following technical scheme:
a measuring weir hydraulic parameter measuring method adopts a measuring weir hydraulic parameter measuring device to measure hydraulic parameters, and comprises the following specific steps:
when the water level outside the main barrel body of the equivalent weir hydraulic parameter measuring device is higher than the internal water level, the data processor controls the electromagnetic proportional air release valve to adjust the opening degree to enable water to enter the base filtering cavity, and simultaneously enters the base buffering cavity through the buffering right transverse channel, the buffering right vertical channel, the buffering left transverse channel and the buffering left vertical channel, at the moment, the water outlet mechanism is in one-way non-return, water pushes the water inlet valve core to be opened through the base water inlet channel, the base water inlet jack and the water inlet axial channel, so that water flows into the main barrel body through the water inlet valve body cavity and the water inlet radial channel and enters the stable cover barrel through the support channel and the communication hole, the weighing sensor monitors stress data in real time through a weighing pull rope or a weighing rod and feeds the stress data back to the data processor, and the data processor processes the stress data to obtain a current water level value;
when the water level outside the main barrel body is lower than the internal water level, the data processor controls the electromagnetic proportional air release valve to adjust the large opening, at the moment, the water inlet mechanism is in one-way non-return, water enters the water outlet valve body cavity through the water outlet radial channel on the water outlet mechanism to push the water outlet valve core to be opened, so that the water flows through the water outlet axial channel, the base water outlet jack and the base water outlet channel to enter the base buffer cavity, and is simultaneously output through the buffer right transverse channel, the buffer right vertical channel, the buffer left transverse channel and the buffer left vertical channel on the buffer mechanism and enters the main barrel body through the base filter cavity, the acting force on the metering rod is changed in the output process, the weighing pull rope or the weighing rod monitors the stress data of the metering rod in real time and feeds the stress data back to the data processor, and the data processor obtains the current water level value;
when the water levels inside and outside the main barrel body are consistent, the data processor controls the electromagnetic proportional deflation valve to adjust smaller opening or close, when the water level fluctuates due to the influence of the external environment, the induction floating ball fluctuates, the data processor comprehensively judges the fluctuation factors of the water level according to the fluctuation characteristics of the induction floating ball and the data feedback of the wind speed measuring instrument, when the fluctuation center height of the induction floating ball does not have obvious great change within a certain period of time, the data processor controls the electromagnetic proportional deflation valve to close to prevent the water level value from frequently changing due to sudden fluctuation, and when the fluctuation center height of the induction floating ball changes obviously great within a period of time, the data processor controls the electromagnetic proportional deflation valve to adjust larger opening to quickly adjust the water level difference inside and outside in real time; in the process of water level change when the electromagnetic proportional air release valve is in a large opening degree, the water inlet mechanism and the water outlet mechanism are respectively combined with the buffer mechanism, so that impact caused by large water level difference is avoided;
the measuring device for the hydraulic parameters of the water gaging weir comprises a water level and fluctuation measuring mechanism, a flow velocity measuring mechanism, water gaging weir side plates and a water gaging weir bottom plate, wherein the water gaging weir bottom plate is provided with the water gaging weir side plates for dividing the water gaging weir bottom plate into a plurality of water gaging weir channels, each water weir channel is respectively provided with the water level and fluctuation measuring mechanism and the flow velocity measuring mechanism, the water level and fluctuation measuring mechanism is vertically and tightly arranged on one side of the water gaging weir side plates, the flow velocity measuring mechanism is vertically and tightly arranged on the water gaging weir bottom plate, the flow velocity measuring mechanisms are in three-dimensional cross distribution in the water gaging weir channels, and the water level and fluctuation measuring mechanisms are connected with a remote upper computer; the concrete structure of each part is as follows:
in the water level and fluctuation measuring mechanism, one side of a main barrel body is provided with an installation support for installing the water level and fluctuation measuring mechanism, the other side of the main barrel body is provided with a power generation mechanism for performing hydroelectric power generation, the power generation mechanism supplies power for a data processor, a weighing sensor, a wind speed measuring instrument and an electromagnetic proportional air release valve, an induction support is arranged on the main barrel body, and an induction floating ball is sleeved on the induction support; the upper end cover is arranged at the top of the main barrel body, a plurality of end cover annular grooves for installing and stabilizing the top of the cover barrel are arranged at the upper part of an inner cavity of the upper end cover, an end cover air passage for communicating the inside and the outside of the main barrel body is arranged on one side of the upper end cover along the vertical direction, an electromagnetic proportional air release valve for controlling air release is arranged on the upper end cover positioned at the outlet of the end cover air passage, and the wind speed measuring instrument is arranged at the top of; weighing sensor sets up the gyration middle part at the upper end cover, and the weighing sensor bottom is connected with the metering rod through weighing pole or weighing stay cord, when weighing sensor is connected with the metering rod through weighing stay cord, weighing sensor is used for measuring the pulling force of metering rod weighing sensor, when rivers slowly rise, the internal and external water level of main barrel keeps unanimous, along with the water level slowly rises, under the effect of buoyancy, the metering rod come-up is connected with weighing sensor, the pulling force that weighing sensor receives slowly reduces, calculate the size of water level value according to reading conversion, when the weir has water, weighing sensor's measured value and water level relation are:
W1-W2＝Wwater (W)(1)
W1Measured value of a load cell in the absence of water, W2Measured value of a load cell in the presence of water, WWater (W)The weight of the discharged water for the metering rod;
s is the cross-sectional area of the metering rod, pWater (W)Is the density of water, h is the water level at the time of measurement;
when weighing sensor is connected with the metering rod through the weighing pole, weighing sensor is used for measuring the holding power of metering rod symmetry retransmission sensor, the weighing sensor measured value when anhydrous sets up to zero, when rivers slowly rise, the inside and outside water level of main barrel keeps unanimous, along with the water level slowly rises, under the effect of buoyancy, the metering rod come-up is connected with weighing sensor, the pressure that weighing sensor receives increases gradually, calculate the size of water level value according to the reading conversion, when the measuring weir has water, weighing sensor's measured value and water level relation are:
Wwater (W)The weight of the water discharged from the metering rod, S is the cross-sectional area of the metering rod, rhoWater (W)Is the density of water, h is the water level at the time of measurement;
h is the water level during measurement, in formula (2), the weighing sensor is subjected to tension during measurement, and in formula (3), the weighing sensor is subjected to pressure during measurement;
the bottom in the main barrel body is provided with a lower bracket, the upper part of the lower bracket is provided with a plurality of bracket ring grooves for installing the bottom of the stable cover barrel, a plurality of bracket channels for water overflowing are uniformly distributed on the lower bracket along the circumferential direction, the stable cover barrel is configured according to the size of the model selection diameter of the metering rod, a plurality of communication holes for water through flow are arranged on the stable cover barrel, the lower bracket is positioned above the base, the base is arranged at the bottom of the main barrel body, a base ring cavity for assembling and disassembling the water inlet mechanism and the water outlet mechanism is arranged in the base, a base filtering cavity is arranged outside the base, a base buffering cavity for installing the buffering mechanism is arranged in the base, the base filtering cavity is communicated with the base buffering cavity, a base water inlet channel and a base water inlet jack for installing the water inlet mechanism are arranged on one side of the base, a base water outlet channel and a base water outlet jack for installing, the base buffer cavity is communicated with the base water inlet jack through a base water inlet channel, and is communicated with the base water outlet jack through a base water outlet channel;
in the buffer mechanism, a buffer valve body is symmetrical about the buffer valve body, a buffer right transverse channel and a buffer right vertical channel which can run through the buffer valve body from top to bottom are arranged on the right side in the buffer valve body, one end of the buffer right transverse channel is communicated with the outside, the other end of the buffer right transverse channel is communicated with the buffer right vertical channel, a buffer left vertical channel and a buffer left transverse channel which can run through the buffer valve body from top to bottom are arranged on the left side in the buffer valve body, one end of the buffer left transverse channel is communicated with the outside, and the other end of the buffer left transverse channel is communicated with; the buffer valve body is provided with a through hole for installing a buffer adjusting rod along the self rotation center, a buffer valve for adjusting the opening degrees of the buffer right vertical channel and the buffer left vertical channel is sleeved at one end of the buffer adjusting rod, the lower end of the buffer adjusting rod is provided with a buffer tightening nut for locking the relative opening position of the buffer valve, and after the opening degrees of the buffer right vertical channel and the buffer left vertical channel are adjusted as required, the relative opening position of the buffer valve is locked by tightening the buffer tightening nut;
in the water inlet mechanism, a water inlet axial channel, a water inlet sealing line, a water inlet valve body cavity and a water inlet mounting hole for mounting a water inlet valve core are sequentially arranged in the water inlet valve body from right to left, water inlet radial channels communicated with the water inlet valve body cavity are uniformly distributed in the circumferential direction of the water inlet valve body, water inlet valve core supporting bodies which enable the water inlet valve core to be in line contact with the water inlet mounting hole are uniformly distributed in the circumferential direction of the water inlet valve body, one end of a water inlet negative pressure spring in a pre-compression state is in contact with the water inlet axial channel, the other end of the water inlet negative pressure spring is in contact with one end of the water inlet valve core, the other end of the water inlet valve core is in contact with one end of a water inlet adjusting spring, the other end of the water inlet adjusting spring is in contact with a water inlet adjusting rod, the water inlet adjusting rod is connected with the water inlet, the conical surface of the water inlet valve core is in contact seal with a water inlet seal line, the precompression force of a preset water inlet adjusting spring is added to the friction force of the water inlet valve core relative to a water inlet mounting hole and is equal to the precompression force of a water inlet negative pressure spring, so that the opening pressure of the water inlet valve core is zero, the water inlet valve core is opened under the action of the internal and external pressure difference of a main barrel, water enters the main barrel from a water inlet axial channel through a water inlet valve body cavity and a water inlet radial channel, a water inlet clamping nut is arranged on a water inlet adjusting rod, and after the water inlet adjusting spring is adjusted, the adjusting value is locked by clamping the water inlet clamping nut;
in the water outlet mechanism, a water outlet axial channel, a water outlet sealing line, a water outlet valve body cavity and a water outlet mounting hole for mounting a water outlet valve core are sequentially arranged in the water outlet valve body from left to right, water outlet radial channels communicated with the water outlet valve body cavity are uniformly distributed in the circumferential direction of the water outlet valve body, the water outlet valve core is connected with a water outlet valve core bracket, the water outlet valve core bracket is matched and mounted with the water outlet valve body through the water outlet mounting hole, water outlet valve core support bodies which enable the water outlet valve core bracket to be in line contact with the water outlet mounting hole are uniformly distributed in the circumferential direction of the water outlet valve core bracket, one end of a water outlet negative pressure spring in a pre-compression state is contacted with the water outlet axial channel, the other end of the water outlet negative pressure spring is contacted with one end of the water outlet valve core, one end of the water outlet valve core bracket is contacted with one end, the matching amount of the water outlet adjusting rod and the water outlet valve body is adjusted through the rotation of the water outlet adjusting inner hexagonal, the precompression amount of the water outlet adjusting spring is further adjusted, so that the conical surface of the water outlet valve core is in contact sealing with a water outlet sealing line, the precompression force of the water outlet adjusting spring is preset to be equal to the friction force of the water outlet valve core support relative to the water outlet mounting hole and the precompression force of the water outlet negative pressure spring, so that the opening pressure of the water outlet valve core is zero, the water outlet valve core is opened under the action of the pressure difference between the inside and the outside of the main barrel, water in the main barrel enters from a water outlet radial channel and flows out through a water outlet valve body cavity and a water outlet axial channel, a water outlet clamping nut is arranged on the water outlet adjusting rod, after the water outlet adjusting spring is adjusted, an outer hexagonal is arranged at one end of the water outlet valve core, an inner hexagonal is arranged on the water outlet valve core support, and the water outlet valve core are respectively arranged in the, the water outlet valve core bracket is rotated through an inner hexagon and is matched with the water outlet valve core;
in the flow velocity measuring mechanism, one side of a flow velocity measurement integrated processor is provided with an integrated generator and a flow velocity measuring meter, the integrated generator and the flow velocity measuring meter are respectively connected with the flow velocity measurement integrated processor, the flow velocity measuring meter transmits monitoring data to the flow velocity measurement integrated processor, the monitoring data are transmitted to the data processor after being processed by the flow velocity measurement integrated processor, the integrated generator generates electricity for the flow velocity measurement integrated processor to be stored and used, the bottom of the flow velocity measurement integrated processor is arranged on a support adjusting rod, the support adjusting rod is connected with a support bottom rod, the support bottom rod is arranged on a support base, the support base is arranged on a support bottom plate, the support bottom plate is tightly arranged on a measuring weir bottom plate, and the height position of the flow velocity measurement integrated processor relative to the measuring weir bottom plate is set by adjusting the support adjusting rod and the support bottom rod;
the weighing sensor, the induction support, the electromagnetic proportion air release valve and the flow velocity measurement integrated processor are respectively connected with the data processor, and the data processor is connected with a remote upper computer.
In the invention, the induction bracket is positioned in the vertical direction of the connecting line of the mounting bracket and the power generation mechanism.
In the invention, the upper part of the upper end cover is provided with an end cover mounting hole for mounting and dismounting the upper end cover.
In the invention, the bottom of the base is provided with a base mounting hole for dismounting the base.
In the invention, a filter screen is arranged in the filtering cavity of the base.
In the invention, the periphery of the upper part of the buffer valve body is provided with buffer mounting threads, and the buffer mechanism is arranged in the buffer cavity of the base in a matching way through the buffer mounting threads.
In the invention, one side of the buffer valve is provided with a buffer retainer ring for limiting the axial direction of the buffer valve, the buffer retainer ring is arranged on the buffer adjusting rod, and the other side of the buffer valve is attached to the upper end face of the buffer valve body.
In the invention, a check ring for the water inlet hole is arranged in the water inlet axial channel, and one end of the water inlet negative pressure spring in a pre-compression state is in contact with the check ring for the water inlet hole.
In the invention, a check ring for the water outlet hole is arranged in the water outlet axial channel, and one end of the water outlet negative pressure spring in a pre-compression state is in contact with the check ring for the water outlet hole.
Has the advantages that: the measuring device for the hydraulic parameters of the water gaging weir of the invention provides two measuring modes, one is that a weighing sensor is connected with a measuring rod through a weighing rod and is used for measuring the tension of a measuring rod symmetrical weight sensor, the other is that the weighing sensor is connected with the measuring rod through a weighing pull rope and is used for measuring the supporting force of the measuring rod symmetrical weight sensor, the specific water level is converted according to the buoyancy action of water and the measured value of the weighing sensor, the measuring precision is high, the manual reading error is effectively reduced, and a buffer mechanism is arranged between a water inlet mechanism and a water outlet mechanism, so that the impact caused by a larger water level difference is avoided; meanwhile, the water level and fluctuation measuring mechanism is connected with a remote upper computer, data monitored by the flow rate measuring mechanism are transmitted to the water level and fluctuation measuring mechanism in real time, the received data are comprehensively processed by the water level and fluctuation measuring mechanism and then transmitted to the remote upper computer, so that hydrologic intelligent monitoring of local areas and even national level areas is realized in real time, and a decision basis is provided for guiding hydraulic engineering construction, water dispatching and flood prevention and waterlogging prevention through processing accumulated data.
Drawings
Fig. 1 is a schematic overall structure diagram of a preferred embodiment of the present invention.
FIG. 2 is a front view of the water level and fluctuation measuring mechanism in the preferred embodiment of the present invention.
Fig. 3 is a schematic view of a base structure in a preferred embodiment of the invention.
FIG. 4 is a front view of a cushioning mechanism in a preferred embodiment of the present invention.
FIG. 5 is a top view of a cushioning mechanism in a preferred embodiment of the present invention.
Fig. 6 is a schematic structural view of a water outlet mechanism in a preferred embodiment of the invention.
Fig. 7 is a schematic structural diagram of a water inlet mechanism in a preferred embodiment of the invention.
Fig. 8 is a schematic structural view of a water inlet valve core in a preferred embodiment of the invention.
Fig. 9 is a schematic structural view of a water outlet valve core support in a preferred embodiment of the invention.
FIG. 10 is a schematic structural diagram of a flow rate measuring mechanism according to a preferred embodiment of the present invention.
FIG. 11 is a right side view of the water level and fluctuation measuring mechanism in the preferred embodiment of the present invention.
FIG. 12 is a top view of the water level and fluctuation measuring mechanism in the preferred embodiment of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to the measuring weir hydraulic parameter measuring method of the figures 1-12, the hydraulic parameter measurement is implemented by adopting a measuring weir hydraulic parameter measuring device, and the measuring device comprises a water level and fluctuation measuring mechanism 1, a data processor 1-1, an upper end cover 1-2, an end cover mounting hole 1-2-1, an end cover annular groove 1-2-2, an end cover air passage 1-2-3, an electric power storage mechanism 1-3, a lower bracket 1-4, a bracket annular groove 1-4-1, a bracket channel 1-4-2, a main barrel 1-5, a water inlet mechanism 1-6, a water inlet adjusting rod 1-6-1, a water inlet tightening nut 1-6-2, a water inlet adjusting spring 1-6-3, a water inlet valve core 1-6-4, 1-6-5 parts of water inlet negative pressure spring, 1-6-6 parts of check ring for a water inlet hole, 1-6-7 parts of a water inlet valve body, a water inlet valve core support body M1, a water inlet adjusting inner hexagonal M2, a water inlet mounting hole M3, a water inlet radial channel M4, a water inlet valve body end surface M5, a water inlet axial channel M6, a water inlet mounting thread M7, a water inlet sealing line M8, a water inlet valve body cavity M9, a base 1-7, a base mounting hole 1-7-1 parts, a base filtering cavity 1-7-2 parts, a base ring cavity 1-7-3 parts, a base water inlet jack 1-7-4 parts, a base water inlet channel 1-7-5 parts, a base buffering cavity 1-7-6 parts, a base water outlet channel 1-7-7 parts, a base water outlet jack 1-7-8 parts, a buffering mechanism 1-8 parts, a water inlet and a water, 1-8-1 parts of buffer valve body, 1-8-2 parts of buffer adjusting rod, 1-8-3 parts of buffer valve, 1-8-4 parts of buffer retainer ring, 1-8-5 parts of buffer tightening nut, 1-8-5 parts of buffer outer hexagonal L1, L2 parts of buffer right transverse channel, L3 parts of buffer right vertical channel, L4 parts of buffer left vertical channel, L5 parts of buffer left transverse channel, L6 parts of buffer mounting thread, 1-9 parts of water outlet mechanism, 1-9-1 parts of water outlet adjusting rod, 1-9-2 parts of water outlet tightening nut, 1-9-3 parts of water outlet adjusting spring, 1-9-4 parts of water outlet valve core, 1-9-5 parts of water outlet negative pressure spring, 1-9-6 parts of retainer ring for water outlet hole, 1-9-7 parts of water outlet valve body, 1-9-8 parts of water outlet valve core bracket, The device comprises a water outlet valve core support N1, a water outlet adjusting inner hexagon N2, a water outlet mounting hole N3, a water outlet radial channel N4, a water outlet valve body end surface N5, a water outlet axial channel N6, a water outlet mounting thread N7, a water outlet sealing line N8, a water outlet valve body-shaped cavity N9, a water outlet support inner hexagon N10, a weighing sensor 1-10, a weighing rod 1-11, a weighing pull rope 1-12, a wind speed measuring instrument 1-13, an electromagnetic proportion deflation valve 1-14, a metering rod 1-15, a stable cover barrel 1-16, a communication hole 1-16-1, a mounting support 1-17, a power generation mechanism 1-18, a filter screen 1-19, an induction support 1-20, an induction floating ball 1-21, a flow rate measuring mechanism 2, a flow rate measuring integrated processor 2-1, an integrated power generator 2-2, a flow rate measuring meter 2-3, a water outlet valve body, The device comprises a support adjusting rod 2-4, a support bottom rod 2-5, a first fastening screw 2-6, a second fastening screw 2-7, a support base 2-8, a support bottom plate 2-9, a weir side plate 3 and a weir bottom plate 4;
the water level and fluctuation measuring mechanism 1 is vertically and tightly arranged on one side of a measuring weir side plate 3 through an expansion bolt, the flow velocity measuring mechanism 2 is vertically and tightly arranged on a measuring weir bottom plate 4 through an expansion bolt, the flow velocity measuring mechanism 2 is in three-dimensional cross distribution in measuring weir channels, and for multi-channel measuring weirs, the water level and fluctuation measuring mechanism 1 and the flow velocity measuring mechanism 2 are respectively arranged in each channel; the water level and fluctuation measuring mechanism 1 is used for monitoring the height of the water level, the overflowing fluctuation and the wind speed of the external environment, and the flow rate measuring mechanism 2 is used for monitoring the real-time dynamic flow rate of overflowing multiple points; the data monitored by the flow rate measuring mechanism 2 are transmitted to the water level and fluctuation measuring mechanism 1 in real time, and the water level and fluctuation measuring mechanism 1 carries out comprehensive processing on the received data; the device is installed at key water measuring weirs, irrigation and drainage stations, gate dams and the like in one or more regions, the water level and fluctuation measuring mechanisms 1 of all monitoring points feed back processed data to a hydraulic engineering monitoring center in real time through the internet technology so as to realize intelligent hydrologic monitoring of local regions and even national regions in real time, and decision-making basis is provided for guiding hydraulic engineering construction, water consumption scheduling and flood prevention and waterlogging prevention through processing accumulated data;
one side of the main barrel body 1-5 is provided with a mounting bracket 1-17, the mounting bracket 1-17 is used for mounting a water level and fluctuation measuring mechanism 1, the other side (namely the opposite direction relative to the mounting bracket 1-17) of the main barrel body 1-5 is provided with a power generating mechanism 1-18, the power generating mechanism 1-18 is used for hydroelectric power generation, and stores electric energy in an electric power storage mechanism 1-3 for a data processor 1-1, a weighing sensor 1-10, a wind speed measuring instrument 1-13 and an electromagnetic proportion deflation valve 1-14, an induction bracket 1-20 is arranged on the main barrel body 1-5, the induction bracket 1-20 is positioned in the vertical direction of the connecting line of the mounting bracket 1-17 and the power generating mechanism 1-18, and an induction floating ball 1-21 is sleeved on the induction bracket 1-20, the induction floating ball 1-21 can float up and down along the axial direction of the induction support 1-20 under the action of the external force of water fluctuation, and the induction support 1-20 induces the floating of the induction floating ball 1-21 and transmits data to the data processor 1-1 for monitoring the fluctuation quantity of the passing fluid in real time; an upper end cover 1-2 is connected with a main barrel body 1-5 through threads and is arranged at the top of the main barrel body 1-5, an end cover mounting hole 1-2-1 is arranged at the upper part of the upper end cover 1-2 and is used for dismounting the upper end cover 1-2, a plurality of end cover annular grooves 1-2-2 are arranged at the upper part of an inner cavity of the upper end cover 1-2 and are used for mounting and limiting a stable cover barrel 1-16, an end cover air flue 1-2-3 is arranged at one side of the upper end cover 1-2 along the vertical direction and is used for communicating the inside and the outside of the main barrel body 1-5, a wind speed measuring instrument 1-13 is arranged on the upper end cover 1-2 and is used for measuring the real-time wind speed of a monitoring point, an electromagnetic proportion air release valve 1-14 is, the weighing sensors 1-10 are arranged in the rotary middle part of the upper end cover 1-2 through threaded connection, the weighing sensors 1-10 are connected with the metering rods 1-15 through weighing rods 1-11 or weighing pull ropes 1-12, when the weighing sensor 1-10 is connected with the metering rod 1-15 through the weighing pull rope 1-12, the weighing sensor 1-10 is used for measuring the tension of the weighing sensor 1-10 of the weighing bar 1-15, when the water flow rises slowly, the water levels inside and outside the main barrel body 1-5 are kept consistent, along with the gradual rise of the water level, under the action of buoyancy, the metering rod 1-15 floats upwards to be connected with the weighing sensor 1-10, the tension borne by the weighing sensor 1-10 is slowly reduced, the water level value is converted and calculated according to the reading, when the water is available on the measuring weir, the measured values of the weighing sensors 1-10 and the water level have the following relations:
W1-W2＝Wwater (W) (1)
W1Measured value of the load cell 1-10 in the absence of water, W2Measured values of load cells 1-10 in the presence of water, WWater (W)The weight of the discharged water of the measuring rod is 1-15;
s is the cross-sectional area, rho, of the metering rod 1-15Water (W)Is the density of water, h is the water level at the time of measurement;
when the weighing sensor 1-10 is connected with the measuring rod 1-15 through the weighing rod 1-11, the weighing sensor 1-10 is used for measuring the supporting force of the weighing sensor 1-15 of the measuring rod 1-15, the measured value of the weighing sensor 1-10 in the absence of water is set to be zero, when water flow slowly rises, the water levels inside and outside the main barrel body 1-5 are kept consistent, along with the slow rise of the water level, the measuring rod 1-15 floats upwards to be connected with the weighing sensor 1-10 under the action of buoyancy, the pressure borne by the weighing sensor 1-10 is gradually increased, the water level value is calculated according to the reading conversion, and when water exists in a water measuring weir, the relation between the measured value of the weighing sensor 1-10 and the water level is as follows:
Wwater (W)The weight of the discharged water for the measuring rod 1-15, S is the cross section area of the measuring rod 1-15, rhoWater (W)Is the density of water, h is the water level at the time of measurement;
h is the water level during measurement, in the formula (2), the weighing sensors 1-10 are subjected to tension during measurement, and in the formula (3), the weighing sensors 1-10 are subjected to compression during measurement;
the lower support 1-4 is arranged in the main barrel body 1-5 through threaded connection, a plurality of support ring grooves 1-4-1 are formed in the upper portion of the lower support 1-4 and used for installing and limiting the stable cover barrels 1-16, a plurality of support channels 1-4-2 are uniformly distributed on the lower support 1-4 along the circumferential direction and used for overflowing, the bottoms of the stable cover barrels 1-16 are arranged in the support ring grooves 1-4-1, the tops of the stable cover barrels 1-16 are arranged in end cover ring grooves 1-2-2, the stable cover barrels 1-16 are configured according to the size of the selected diameter of the metering rods 1-15, a plurality of communication holes 1-16-1 are formed in the stable cover barrels 1-16 and used for through flow, and the lower support 1-4 is located above the base 1-7; the base 1-7 and the main barrel body 1-5 are connected through screw threads and arranged at the bottom of the main barrel body 1-5, the bottom of the base 1-7 is provided with a base mounting hole 1-7-1 for dismounting the base 1-7, a base ring cavity 1-7-3 for dismounting the water inlet mechanism 1-6 and the water outlet mechanism 1-9 is arranged inside the base 1-7, a base filtering cavity 1-7-2 is arranged outside the base 1-7, a base buffering cavity 1-7-6 is arranged inside the base 1-7, the base filtering cavity 1-7-2 is communicated with the base buffering cavity 1-7-6, a filter screen 1-19 is arranged inside the base filtering cavity 1-7-2, and the base filtering cavity 1-7-2 is used for mounting the buffering mechanism 1-8, internal threads are arranged in the base buffering cavity 1-7-6, the buffering mechanism 1-8 is arranged in the base buffering cavity 1-7-6 in a matching way through buffering mounting threads L6, one side of the base 1-7 is provided with a base water inlet channel 1-7-5 and a base water inlet jack 1-7-4, the other side of the base 1-7 is provided with a base water outlet channel 1-7-7 and a base water outlet jack 1-7-8, the water inlet mechanism 1-6 is arranged in the base water inlet jack 1-7-4, the water outlet mechanism 1-9 is arranged in the base water outlet jack 1-7-8, the base buffering cavity 1-7-6 is communicated with the base water inlet jack 1-7-4 through the base water inlet channel 1-7-5, the base buffer cavity 1-7-6 is communicated with a base water outlet jack 1-7-8 through a base water outlet channel 1-7-7;
in the buffer mechanism 1-8, the buffer valve body 1-8-1 is symmetrical about itself, the right side in the buffer valve body 1-8-1 is provided with a buffer right transverse channel L2 and a buffer right vertical channel L3, one end of the buffer right transverse channel L2 is communicated with the outside, the other end of the buffer right transverse channel L2 is communicated with the buffer right vertical channel L3, the buffer right vertical channel L3 is communicated with the upper part and the lower part of the buffer valve body 1-8-1, the left side in the buffer valve body 1-8-1 is provided with a buffer left vertical channel L4 and a buffer left transverse channel L5, one end of the buffer left transverse channel L5 is communicated with the outside, the other end of the buffer left transverse channel L5 is communicated with the buffer left vertical channel L4, the buffer left vertical channel L4 is communicated with the upper part and the lower part of the buffer valve body 1-8-, the periphery of the lower part of the buffer valve body 1-8-1 is provided with a buffer outer hexagon L1, the buffer valve body 1-8-1 is provided with a through hole along the self rotation center, the buffer adjusting rod 1-8-2 is installed in a matching way with the through hole, the buffer valve 1-8-3 is sleeved at one end of the buffer adjusting rod 1-8-2, one side of the buffer valve 1-8-3 is provided with a buffer retainer ring 1-8-4 for limiting the axial direction of the buffer valve 1-8-3, the buffer retainer ring 1-8-4 is installed on the buffer adjusting rod 1-8-2, the other side of the buffer valve 1-8-3 is attached to the upper end face of the buffer valve body 1-8-1, the opening degrees of the buffer right vertical channel L3 and the buffer left vertical channel L4 are adjusted by rotating the buffer valve, the lower end of the buffer adjusting rod 1-8-2 is provided with a buffer tightening nut 1-8-5, and after the opening degrees of the buffer right vertical channel L3 and the buffer left vertical channel L4 are adjusted as required, the relative opening position of the buffer valve 1-8-3 is locked by tightening the buffer tightening nut 1-8-5;
in the water inlet mechanism 1-6, a water inlet mounting thread M7 and a water inlet valve body end surface M5 are arranged on the periphery of one end of a water inlet valve body 1-6-7 and are respectively used for connecting, mounting and positioning with a base water inlet jack 1-7-4, a water inlet axial channel M6, a water inlet sealing line M8, a water inlet valve body cavity M9 and a water inlet mounting hole M3 are sequentially arranged inside the water inlet valve body 1-6-7 from right to left, water inlet radial channels M4 are uniformly arranged along the circumferential direction of the water inlet valve body 1-6-7, the water inlet radial channels M4 are communicated with a water inlet valve body cavity M9, a water inlet valve core 1-6-4 is matched and mounted with the water inlet valve body 1-6-7 through a water inlet mounting hole M3, water inlet valve core supports M1 are uniformly arranged along the circumferential direction of the water inlet valve core 1-6-4, so that the water inlet valve core 1-6-4 is in line contact with a reserved space, the check ring 1-6-6 for the water inlet hole is arranged in the water inlet axial channel M6, one end of the water inlet negative pressure spring 1-6-5 in a pre-compression state is contacted with the check ring 1-6-6 for the water inlet hole, the other end of the water inlet negative pressure spring 1-6-5 is contacted with one end of the water inlet valve core 1-6-4, the other end of the water inlet valve core 1-6-4 is contacted with one end of the water inlet adjusting spring 1-6-3, the other end of the water inlet adjusting spring 1-6-3 is contacted with the water inlet adjusting rod 1-6-1, the water inlet adjusting rod 1-6-1 is connected with the water inlet valve body 1-6-7 through threaded matching, the matching amount of the water inlet adjusting rod 1-6-1 and the water inlet valve body 1-6-7 is adjusted through the rotation of the water inlet adjusting, further adjusting the precompression amount of the water inlet adjusting spring 1-6-3, so that the conical surface of the water inlet valve core 1-6-4 is in contact sealing with a water inlet sealing line M8, presetting the precompression force of the water inlet adjusting spring 1-6-3 and the friction force of the water inlet valve core 1-6-4 relative to the water inlet mounting hole M3 to be equal to the precompression force of the water inlet negative pressure spring 1-6-5, so that the opening pressure of the water inlet valve core 1-6-4 is zero, under the action of the internal and external pressure difference of the main barrel body 1-5, the water inlet valve core 1-6-4 is opened, water enters the main barrel body 1-5 from the water inlet axial channel M6 through the water inlet valve body cavity M9 and the water inlet radial channel M4, the water inlet adjusting rod 1-6-1 is provided with a water inlet caulking nut 1-6-2, after the water inlet adjusting spring 1-6-3 is adjusted, the adjusted value is locked by tightly assembling the water inlet assembling nut 1-6-2;
in the water outlet mechanism 1-9, the periphery of one end of the water outlet valve body 1-9-7 is provided with a water outlet mounting thread N7 and a water outlet valve body end surface N5 which are respectively used for connecting, mounting and positioning with the base water outlet jack 1-7-8, a water outlet axial channel N6, a water outlet sealing line N8, a water outlet valve body-shaped cavity N9 and a water outlet mounting hole N3 are sequentially arranged inside the water outlet valve body 1-9-7 from left to right, water outlet radial channels N4 are uniformly distributed along the circumferential direction of the water outlet valve body 1-9-7, the water outlet radial channels N4 are communicated with the water outlet valve body-shaped cavity N9, the water outlet valve core 1-9-4 is connected with the water outlet valve core support 1-9-8 through thread matching, the water outlet valve core support 1-9-8 is matched and mounted with the water outlet valve body 1-9-7 through the water outlet mounting hole N3, water outlet valve core supports N1 are uniformly distributed along the circumference of the water outlet valve core support 1-9-8, so that the water outlet valve core support 1-9-8 is in line contact with a reserved space of a water outlet mounting hole N3, a check ring 1-9-6 for the water outlet hole is arranged in a water outlet axial channel N6, one end of a water outlet negative pressure spring 1-9-5 in a pre-compression state is in contact with the check ring 1-9-6 for the water outlet hole, the other end of the water outlet negative pressure spring 1-9-5 is in contact with one end of a water outlet valve core 1-9-4, one end of the water outlet valve core support 1-9-8 is in contact with one end of a water outlet adjusting spring 1-9-3, the other end of the water outlet adjusting spring 1-9-3 is in contact with a water outlet adjusting rod 1-9-1, the water outlet adjusting rod 1-9-1 is connected with a water outlet valve body 1, and the matching amount of the water outlet adjusting rod 1-9-1 and the water outlet valve body 1-9-7 is adjusted through the rotation of the water outlet adjusting inner hexagonal N2, so that the precompression amount of the water outlet adjusting spring 1-9-3 is adjusted, the conical surface of the water outlet valve core 1-9-4 is in contact sealing with a water outlet sealing line N8, the precompression force of the water outlet adjusting spring 1-9-3 is preset to be equal to the friction force of the water outlet valve core support 1-9-8 relative to the water outlet mounting hole N3 and the precompression force of the water outlet negative pressure spring 1-9-5, so that the opening pressure of the water outlet valve core 1-9-4 is zero, the water outlet valve core 1-9-4 is opened under the action of the pressure difference between the inside and outside of the main barrel body 1-5, water in the main barrel body 1-5 enters from a water outlet radial channel N4 and flows out through a water outlet valve body cavity N9 and a water outlet axial, the water outlet adjusting rod 1-9-1 is provided with a water outlet tightening nut 1-9-2, after the water outlet adjusting spring 1-9-3 is adjusted, the water outlet tightening nut 1-9-2 is tightened to lock an adjusted value, one end of the water outlet valve core 1-9-4 is provided with an outer hexagon, the water outlet valve core support 1-9-8 is provided with an inner hexagon, and the water outlet valve core support 1-9-8 and the water outlet valve core 1-9-4 are respectively installed in the water outlet valve body 1-9-7 and then are matched with the water outlet valve core 1-9-8 and the water outlet valve core 1-9-4 through inner hexagon rotation;
in the flow velocity measuring mechanism 2, an integrated generator 2-2 and a flow velocity measuring meter 2-3 are respectively arranged at one side of a flow velocity measuring integrated processor 2-1, the flow velocity measuring meter 2-3 transmits monitoring data to the flow velocity measuring integrated processor 2-1, the monitoring data are transmitted to a data processor 1-1 after being processed by the flow velocity measuring integrated processor 2-1, the integrated generator 2-2 generates power for the flow velocity measuring integrated processor 2-1 to store, the bottom of the flow velocity measuring integrated processor 2-1 is arranged on a support adjusting rod 2-4, the support adjusting rod 2-4 is connected with a support bottom rod 2-5, the support bottom rod 2-5 is arranged on a support base 2-8, the flow velocity measuring integrated processor 2-1 and the support adjusting rod 2-4 are fixed by a first fastening screw 2-6, the support adjusting rod 2-4 and the support bottom rod 2-5 are fixed through a first fastening screw 2-6, the support bottom rod 2-5 and the support base 2-8 are fixed through a second fastening screw 2-7, the support base 2-8 is arranged on a support base plate 2-9, the support base plate 2-9 is fixedly arranged on the water measuring weir bottom plate 4 through an expansion bolt, and the height position of the flow velocity measurement integrated processor 2-1 relative to the water measuring weir bottom plate 4 is set by adjusting the support adjusting rod 2-4 and the support bottom rod 2-5 according to needs.
In this embodiment, when the water level outside the main barrel body 1-5 is higher than the internal water level, the data processor 1-1 controls the electromagnetic proportional air release valve 1-14 to adjust the opening degree, water enters the base filtering cavity 1-7-2 after being filtered by the filter screen 1-19, and enters the base buffering cavity 1-7-6 through the buffering right transverse channel L2, the buffering right vertical channel L3, the buffering left transverse channel L5 and the buffering left vertical channel L4, at this time, the water outlet mechanism 1-9 is unidirectional, water pushes the water inlet valve core 1-6-4 to open through the base water inlet channel 1-7-5, the base water inlet jack 1-7-4 and the water inlet axial channel M6, so that water enters the main barrel body 1-5 through the water inlet valve body cavity M9 and the water inlet radial channel M4, and enters the stable cover barrel 1-4 through the bracket channel 1-4-2 and the communication hole 1-16-1 16, the weighing sensors 1-10 monitor stress data in real time through weighing pull ropes 1-12 or weighing rods 1-11 and feed back the stress data to the data processor 1-1; when the water level outside the main barrel body 1-5 is lower than the internal water level, the data processor 1-1 controls the electromagnetic proportional air release valve 1-14 to adjust the large opening, at the moment, the water inlet mechanism 1-6 is in one-way non-return, water enters the water outlet valve body cavity N9 through the water outlet radial channel N4 on the water outlet mechanism 1-9 to push the water outlet valve core 1-9-4 to be opened, so that the water flows into the base buffering cavity 1-7-6 through the water outlet axial channel N6, the base water outlet jack 1-7-8 and the base water outlet channel 1-7-7 on the buffering mechanism 1-8, and is output through the buffering right transverse channel L2, the buffering right vertical channel L3, the buffering left transverse channel L5 and the buffering left vertical channel L4 on the buffering mechanism 1-8 at the same time and is output through the base filtering cavity 1-7-2 and the filter screen 1-19 to output, the acting force on the measuring rod 1-15 is changed in the water output process, the stress data of the measuring rod 1-15 is monitored in real time by a weighing pull rope 1-12 or a weighing rod 1-11 and fed back to the data processor 1-1, and the data processor 1-1 processes the stress data to obtain the current water level value; when the water levels inside and outside the main barrel body 1-5 are consistent, the data processor 1-1 controls the electromagnetic proportional air release valve 1-14 to adjust the smaller opening or close, so as to reduce the fluctuation deviation of the water level caused by external unstable factors, when the water surface fluctuates under the influence of the external environment, the induction floating ball 1-21 generates fluctuation, the data processor 1-1 comprehensively judges the fluctuation factors of the water surface according to the fluctuation characteristics of the induction floating ball 1-21 and the data feedback of the wind speed measuring instrument 1-13, when the fluctuation center height of the induction floating ball 1-21 does not change obviously and greatly in a certain time period, the data processor 1-1 controls the electromagnetic proportional air release valve 1-14 to close, so as to prevent the water level value from changing frequently caused by sudden fluctuation, when the fluctuation center height of the induction floating ball 1-21 changes obviously and greatly in a certain time period, the data processor 1-1 controls the electromagnetic proportional air release valve 1-14 to adjust a larger opening degree, quickly adjusts the internal and external water level difference in real time, and in the water level change process of the electromagnetic proportional air release valve 1-14 with the larger opening degree, the water inlet mechanism 1-6 and the water outlet mechanism 1-9 are respectively combined with the buffer mechanism 1-8 to play a role in buffering and blocking a water path, so that impact caused by the larger water level difference is avoided;
when the water measuring weir overflows, the water flow speed is different due to the influence of comprehensive factors at different heights or different positions of the same height, the cross three-dimensional distribution of the flow speed measuring mechanism 2 can effectively acquire multi-point data, and a more accurate flow value is obtained after the multi-point data are comprehensively processed by the data processor 1-1.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The measuring method of the hydraulic parameters of the weir is characterized in that the hydraulic parameter measuring device of the weir is adopted to measure the hydraulic parameters, and the measuring method comprises the following specific steps:
when the water level outside the main barrel body of the equivalent weir hydraulic parameter measuring device is higher than the internal water level, the data processor controls the electromagnetic proportional air release valve to adjust the opening degree to enable water to enter the base filtering cavity, and simultaneously enters the base buffering cavity through the buffering right transverse channel, the buffering right vertical channel, the buffering left transverse channel and the buffering left vertical channel, at the moment, the water outlet mechanism is in one-way non-return, water pushes the water inlet valve core to be opened through the base water inlet channel, the base water inlet jack and the water inlet axial channel, so that water flows into the main barrel body through the water inlet valve body cavity and the water inlet radial channel and enters the stable cover barrel through the support channel and the communication hole, the weighing sensor monitors stress data in real time through a weighing pull rope or a weighing rod and feeds the stress data back to the data processor, and the data processor processes the stress data to obtain a current water level value;
when the water level outside the main barrel body is lower than the internal water level, the data processor controls the electromagnetic proportional air release valve to adjust the large opening, at the moment, the water inlet mechanism is in one-way non-return, water enters the water outlet valve body cavity through the water outlet radial channel on the water outlet mechanism to push the water outlet valve core to be opened, so that the water flows through the water outlet axial channel, the base water outlet jack and the base water outlet channel to enter the base buffer cavity, and is simultaneously output through the buffer right transverse channel, the buffer right vertical channel, the buffer left transverse channel and the buffer left vertical channel on the buffer mechanism and enters the main barrel body through the base filter cavity, the acting force on the metering rod is changed in the output process, the weighing pull rope or the weighing rod monitors the stress data of the metering rod in real time and feeds the stress data back to the data processor, and the data processor obtains the current water level value;
when the water levels inside and outside the main barrel body are consistent, the data processor controls the electromagnetic proportional air release valve to adjust the smaller opening or close, so that the water level fluctuation deviation caused by external unstable factors is reduced; when the water surface is affected by the external environment to generate fluctuation, the induction floating ball generates fluctuation, the data processor comprehensively judges the fluctuation factors of the water surface according to the fluctuation characteristics of the induction floating ball and the data feedback of the wind speed measuring instrument, when the fluctuation center height of the induction floating ball does not change obviously and greatly within a certain time period, the data processor controls the electromagnetic proportion deflation valve to close to prevent the water level value from changing frequently due to sudden fluctuation, and when the fluctuation center height of the induction floating ball changes obviously and greatly within a certain time period, the data processor controls the electromagnetic proportion deflation valve to adjust the larger opening degree and adjust the internal and external water level difference rapidly and in real time; in the process of water level change when the electromagnetic proportional air release valve is in a large opening degree, the water inlet mechanism and the water outlet mechanism are respectively combined with the buffer mechanism, so that impact caused by large water level difference is avoided;
the measuring device for the hydraulic parameters of the water gaging weir comprises a water level and fluctuation measuring mechanism, a flow velocity measuring mechanism, water gaging weir side plates and a water gaging weir bottom plate, wherein the water gaging weir bottom plate is provided with the water gaging weir side plates for dividing the water gaging weir bottom plate into a plurality of water gaging weir channels, each water weir channel is respectively provided with the water level and fluctuation measuring mechanism and the flow velocity measuring mechanism, the water level and fluctuation measuring mechanism is vertically and tightly arranged on one side of the water gaging weir side plates, the flow velocity measuring mechanism is vertically and tightly arranged on the water gaging weir bottom plate, the flow velocity measuring mechanisms are in three-dimensional cross distribution in the water gaging weir channels, and the water level and fluctuation measuring mechanisms are connected with a remote upper computer; the concrete structure of each part is as follows:
in the water level and fluctuation measuring mechanism, one side of a main barrel body is provided with an installation bracket for installing the water level and fluctuation measuring mechanism, the other side of the main barrel body is provided with a power generation mechanism for performing hydroelectric power generation, an induction bracket is arranged on the main barrel body, and an induction floating ball is sleeved on the induction bracket; the upper end cover is arranged at the top of the main barrel body, a plurality of end cover annular grooves for installing and stabilizing the top of the cover barrel are arranged at the upper part of an inner cavity of the upper end cover, an end cover air passage for communicating the inside and the outside of the main barrel body is arranged on one side of the upper end cover along the vertical direction, an electromagnetic proportional air release valve for controlling air release is arranged on the upper end cover positioned at the outlet of the end cover air passage, and the wind speed measuring instrument is arranged at the top of; the weighing sensor is arranged in the rotary middle part of the upper end cover, the bottom of the weighing sensor is connected with the metering rod through a weighing rod or a weighing pull rope, the inner bottom of the main barrel body is provided with a lower bracket, the upper part of the lower bracket is provided with a plurality of bracket ring grooves for installing the bottom of the stable cover barrel, a plurality of bracket channels for water overflowing are uniformly distributed on the lower bracket along the circumferential direction, the stable cover barrel is provided with a plurality of intercommunicating pores for water through flow, the lower bracket is positioned above the base, the base is arranged at the bottom of the main barrel body, a base ring cavity for assembling and disassembling the water inlet mechanism and the water outlet mechanism is arranged in the base, the base filtering cavity is arranged outside the base, the base buffering cavity for installing the buffering mechanism is arranged in the base, the base filtering cavity is communicated with the base buffering cavity, one side of the base is provided with a base, a base water outlet channel and a base water outlet jack for mounting a water outlet mechanism are arranged on the other side of the base, a base buffering cavity is communicated with the base water inlet jack through a base water inlet channel, and the base buffering cavity is communicated with the base water outlet jack through the base water outlet channel;
in the buffer mechanism, a buffer valve body is symmetrical about the buffer valve body, a buffer right transverse channel and a buffer right vertical channel which can run through the buffer valve body from top to bottom are arranged on the right side in the buffer valve body, one end of the buffer right transverse channel is communicated with the outside, the other end of the buffer right transverse channel is communicated with the buffer right vertical channel, a buffer left vertical channel and a buffer left transverse channel which can run through the buffer valve body from top to bottom are arranged on the left side in the buffer valve body, one end of the buffer left transverse channel is communicated with the outside, and the other end of the buffer left transverse channel is communicated with;
in the water inlet mechanism, a water inlet axial channel, a water inlet sealing line, a water inlet valve body cavity and a water inlet mounting hole for mounting a water inlet valve core are sequentially arranged in the water inlet valve body from right to left, water inlet radial channels communicated with the water inlet valve body cavity are uniformly distributed in the circumferential direction of the water inlet valve body, water inlet valve core supporting bodies for enabling the water inlet valve core to be in line contact with the water inlet mounting hole are uniformly distributed in the circumferential direction of the water inlet valve core, one end of a water inlet negative pressure spring in a pre-compression state is in contact with the water inlet axial channel, the other end of the water inlet negative pressure spring is in contact with one end of the water inlet valve core, the other end of the water inlet valve core is in contact with one end of a water inlet adjusting spring, the other end of the water inlet adjusting spring is in contact with a water inlet adjusting rod, the water inlet adjusting rod is connected with the water inlet valve body, and, so that the opening pressure of the water inlet valve core is zero;
in the water outlet mechanism, a water outlet axial channel, a water outlet sealing line, a water outlet valve body cavity and a water outlet mounting hole for mounting a water outlet valve core are sequentially arranged in the water outlet valve body from left to right, water outlet radial channels communicated with the water outlet valve body cavity are uniformly distributed in the circumferential direction of the water outlet valve body, the water outlet valve core is connected with a water outlet valve core bracket, the water outlet valve core bracket is matched and mounted with the water outlet valve body through the water outlet mounting hole, water outlet valve core support bodies which enable the water outlet valve core bracket to be in line contact with the water outlet mounting hole are uniformly distributed in the circumferential direction of the water outlet valve core bracket, one end of a water outlet negative pressure spring in a pre-compression state is contacted with the water outlet axial channel, the other end of the water outlet negative pressure spring is contacted with one end of the water outlet valve core, one end of the water outlet valve core bracket is contacted with one end, the pre-compression force of the water outlet adjusting spring is preset to be equal to the sum of the friction force of the water outlet valve core support relative to the water outlet mounting hole and the pre-compression force of the water outlet negative pressure spring, so that the opening pressure of the water outlet valve core is zero;
in the flow velocity measuring mechanism, one side of a flow velocity measurement integrated processor is provided with an integrated generator and a flow velocity measuring meter, the integrated generator and the flow velocity measuring meter are respectively connected with the flow velocity measurement integrated processor, the bottom of the flow velocity measurement integrated processor is arranged on a support adjusting rod, the support adjusting rod is connected with a support bottom rod, the support bottom rod is arranged on a support base, the support base is arranged on a support bottom plate, and the support bottom plate is tightly fixed on a bottom plate of a water measuring weir;
the weighing sensor, the induction support, the electromagnetic proportion air release valve and the flow velocity measurement integrated processor are respectively connected with the data processor, and the data processor is connected with a remote upper computer.
2. The method for measuring hydraulic parameters of a water weir according to claim 1, wherein when the weighing sensor is connected with the measuring bar through the weighing pull rope, the weighing sensor is used for measuring the pulling force of the weighing sensor, when the water flow slowly rises, the water levels inside and outside the main barrel body are kept consistent, as the water level slowly rises, the measuring bar floats upwards and is connected with the weighing sensor under the action of the floating force, the pulling force borne by the weighing sensor is slowly reduced, the water level value is calculated according to the reading conversion, and when the water is present in the water weir, the relation between the measuring value of the weighing sensor and the water level is as follows:
（1）
（2）
when weighing sensor is connected with the metering rod through the weighing pole, weighing sensor is used for measuring the holding power of metering rod symmetry retransmission sensor, the weighing sensor measured value when anhydrous sets up to zero, when rivers slowly rise, the inside and outside water level of main barrel keeps unanimous, along with the water level slowly rises, under the effect of buoyancy, the metering rod come-up is connected with weighing sensor, the pressure that weighing sensor receives increases gradually, calculate the size of water level value according to the reading conversion, when the measuring weir has water, weighing sensor's measured value and water level relation are:
（3）
in the above equations (1) to (3), the measurement value of the load cell in the absence of water, the measurement value of the load cell in the presence of water, the weight of the water discharged from the metering bar, the cross-sectional area of the metering bar, the density of the water, and the water level at the time of measurement are given.
3. The method of claim 1, wherein the sensing bracket is positioned in a vertical orientation with respect to a line connecting the mounting bracket and the power generation mechanism.
4. The method for measuring hydraulic parameters of a weir of claim 1, wherein the upper end cover is provided with an end cover mounting hole for mounting and dismounting the upper end cover.
5. The method for measuring hydraulic parameters of a weir of claim 1, wherein the bottom of the base is provided with a base mounting hole for mounting and dismounting the base.
6. The method of claim 1, wherein a strainer is disposed in the filtering cavity of the base.
7. The method for measuring hydraulic parameters of a weir of claim 1, wherein the buffering valve body is provided with a through hole along the rotation center thereof for installing the buffering adjusting rod, and the buffering valve for adjusting the opening degree of the buffering right vertical channel and the buffering left vertical channel is sleeved at one end of the buffering adjusting rod.
8. The method for measuring hydraulic parameters of a water weir according to claim 7, wherein one side of the buffer valve is provided with a buffer check ring for axially limiting the buffer valve, the buffer check ring is mounted on the buffer adjusting rod, and the other side of the buffer valve is attached to the upper end face of the buffer valve body.
9. The method for measuring hydraulic parameters of a water weir according to claim 1, wherein the periphery of the upper part of the buffering valve body is provided with buffering mounting threads, and the buffering mechanism is installed in the buffering cavity of the base in a matching way through the buffering mounting threads.
10. The method for measuring hydraulic parameters of a water weir according to claim 1, wherein the lower end of the buffer adjusting rod is provided with a buffer tightening nut for locking the relative opening position of the buffer valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500027.5A CN108716940B (en) | 2018-05-23 | 2018-05-23 | Measuring method for hydraulic parameters of measuring weir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500027.5A CN108716940B (en) | 2018-05-23 | 2018-05-23 | Measuring method for hydraulic parameters of measuring weir |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108716940A CN108716940A (en) | 2018-10-30 |
| CN108716940B true CN108716940B (en) | 2019-12-31 |
Family
ID=63900494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810500027.5A Expired - Fee Related CN108716940B (en) | 2018-05-23 | 2018-05-23 | Measuring method for hydraulic parameters of measuring weir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716940B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901614A (en) * | 2012-10-11 | 2013-01-30 | 华北电力大学 | Aquatic vegetation stress measuring device |
| CN107655540B (en) * | 2017-10-27 | 2023-12-22 | 国家电网公司 | Measuring device for measuring weir |
| CN207317897U (en) * | 2017-11-13 | 2018-05-04 | 大唐湘潭发电有限责任公司 | A kind of open space Weighing type liquid level meter |
-
2018
- 2018-05-23 CN CN201810500027.5A patent/CN108716940B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN108716940A (en) | 2018-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104099956B (en) | Method and the monitor of pile foundation quality whether is differentiated continuously based on monitoring concrete | |
| CN111539630A (en) | Building engineering construction operation environment intelligent monitoring system based on big data | |
| CN114580793B (en) | Water environment optimization method and system based on multi-source complementation and local regulation | |
| CN108716940B (en) | Measuring method for hydraulic parameters of measuring weir | |
| CN108680228B (en) | Liquid level measuring method for hydraulic engineering | |
| CN109061086A (en) | A kind of water quality monitoring and early warning system applied to shrimp culture pond | |
| CN208921700U (en) | A kind of Water Test Kits with precision liquid taking and metering device | |
| CN108593044B (en) | Liquid level measuring device for hydraulic engineering | |
| CN108414028B (en) | Hydraulic parameter measuring device for water measuring weir | |
| CN207673321U (en) | Well head tolerance automatic adjusting control device | |
| CN1667370A (en) | Water gaging method utilizing water gauge | |
| CN109612909A (en) | Grout transformation Rock And Soil permeance property intelligent measure experimental rig and test method | |
| CN102128273A (en) | Fire hydrant rapid valve | |
| CN107121386B (en) | One kind pressing hybrid pipeline hydraulic coefficient of friction resistance efficient detection system and method | |
| CN107907261B (en) | Dual-bellows vertical force detection device and detection method for bridge support | |
| Baratov et al. | Smart system for water level and flow measurement and control in open canals | |
| CN212275027U (en) | Water level monitoring device for hydraulic engineering | |
| CN204730921U (en) | A kind of sand material weighing device | |
| CN205228873U (en) | Floating runoff sediment load sampling is dark section water inlet device entirely | |
| CN205373706U (en) | Hydrology real -time supervision device | |
| CN103335794A (en) | Dynamic annular clearance liquid leakage quantity measuring method, device and system | |
| CN210665775U (en) | From rectilinear current meter monitoring mount | |
| CN209277869U (en) | A kind of oil well intelligent differential pressure on-line metering system | |
| CN208254600U (en) | A kind of float gauge stabilising arrangement | |
| CN1415942A (en) | Method for measuring continuous current flux of separate injection well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |