阅读说明：本技术 一种适用于超宽明渠的流量测量装置及其安装方法 (Flow measuring device suitable for ultra-wide open channel and installation method thereof ) 是由 吴西贵 丁积杰 于 2021-10-15 设计创作，主要内容包括：本发明提供一种适用于超宽明渠的流量测量装置及其安装方法,包括分别设置于水渠两侧的两组流量测量单元,两组所述流量测量单元之间的测量路径相重合,且每组所述流量测量单元通过一固定基础连接于水渠的侧壁上,所述流量测量单元包括设置于固定基础内的安装支架、设置于安装支架上的测量探头以及用于调节测量探头使用角度的调节件,所述调节件设置于安装支架上,且该调节件与测量探头相连接,本发明易于在渠宽较大的水渠中安装使用；并且可利用调节件对测量探头进行调试,保证本发明测量的准确性；采用多组测量探头还能消除流速分布不均影响,提高对水流的测量精度和稳定性,使其能够适合不同渠形的水渠或河道,故实用性较好。(The invention provides a flow measuring device suitable for an ultra-wide open channel and an installation method thereof, and the flow measuring device comprises two groups of flow measuring units which are respectively arranged at two sides of the channel, wherein measuring paths between the two groups of flow measuring units are overlapped, each group of flow measuring unit is connected to the side wall of the channel through a fixed foundation, each flow measuring unit comprises an installation support arranged in the fixed foundation, a measuring probe arranged on the installation support and an adjusting piece used for adjusting the using angle of the measuring probe, the adjusting piece is arranged on the installation support, and the adjusting piece is connected with the measuring probe; the measuring probe can be debugged by using the adjusting piece, so that the measuring accuracy of the invention is ensured; adopt multiunit measuring probe to also eliminate the uneven influence of velocity of flow distribution, improve measurement accuracy and stability to rivers, make it can be fit for the ditch or the river course of different canals and ditches shape, so the practicality is better.)

1. The utility model provides a flow measuring device suitable for super wide open channel, includes the two sets of flow measuring unit that set up respectively in the ditch both sides, its characterized in that: two sets of measuring path between the flow measurement unit coincides mutually, and every group the flow measurement unit is connected on the lateral wall of ditch through a fixed basis (1), the flow measurement unit is including setting up installing support (2) in fixed basis (1), setting up measuring probe (3) on installing support (2) and being used for adjusting regulating part (4) that measuring probe (3) used the angle, regulating part (4) set up on installing support (2), and this regulating part (4) are connected with measuring probe (3).

2. A flow measuring device adapted for use with an ultra-wide open channel as defined in claim 1, wherein: the fixed foundation (1) is provided with a channel, and the mounting bracket (2) is fixedly arranged in the channel.

3. A flow measuring device adapted for use with an ultra-wide open channel as defined in claim 2, wherein: be provided with arch (6) on the inner wall of channel, be provided with recess (5) on installing support (2), recess (5) cooperate the cover to locate on arch (6).

4. A flow measuring device adapted for use with an ultra-wide open channel as defined in claim 1, wherein: the mounting bracket (2) is provided with a containing cavity, and a plurality of groups of measuring probes (3) are uniformly distributed in the containing cavity.

5. A flow measuring device adapted for use with an ultra-wide open channel as defined in claim 3, wherein: the adjusting piece (4) is arranged to be an adjusting bolt, the adjusting bolt is rotatably arranged on the inner wall of the groove (5), and the output end of the adjusting bolt is rotatably matched with the measuring probe (3).

6. A flow measuring device adapted for use with an ultra-wide open channel as defined in claim 1, wherein: the mounting bracket is characterized in that a protection plate (7) is arranged on the mounting bracket (2), a plurality of groups of strip-shaped holes (8) are formed in the protection plate (7) in a matched mode, and the positions of the strip-shaped holes (8) correspond to the measurement positions of a group of measurement probes (3) respectively.

7. A flow measuring device adapted for use with an ultra-wide open channel as defined in claim 6, wherein: the mounting bracket is characterized in that a clamping groove (9) is formed in the mounting bracket (2), a clamping strip (10) is connected to the protection plate (7), and the clamping strip (10) is matched with a clamp and arranged in the clamping groove (9).

8. A flow measuring device adapted for use with an ultra-wide open channel as defined in claim 1, wherein: and the included angle between the measurement direction of the flow measurement unit and the water flow direction in the water channel is an acute angle, and the included angle between the measurement direction of the flow measurement unit and the water flow direction in the water channel is an obtuse angle.

9. A flow measuring device adapted for use with an ultra-wide open channel as defined in claim 4, wherein: and the plurality of groups of measuring probes (3) are electrically connected with a time difference type ultrasonic flowmeter.

10. A method of installing a flow measuring device according to any one of claims 1 to 9, comprising the steps of:

the method comprises the following steps that firstly, two groups of flow measurement units are respectively arranged on two sides of a water channel, a support rod group is arranged between the two groups of flow measurement units, and the two groups of flow measurement units are positioned and supported by the support rod group;

step two, respectively pre-fixing the two groups of flow measurement units so as to fix the flow measurement units on the side wall of the water channel;

and step three, adjusting the measurement posture and the measurement angle of the measurement probe (3) so as to enable the measurement paths of the corresponding measurement probes (3) on the two sides to coincide.

Step four, a fixed foundation (1) is built, and the space between the flow measurement unit and the side wall of the water channel is reinforced by the fixed foundation (1);

and step five, removing the support rod group after the reinforcement between the flow measurement unit and the side wall of the water channel is completed.

Technical Field

The invention relates to the technical field of canal flow measurement, in particular to a flow measurement device suitable for an ultra-wide open canal and an installation method thereof.

Background

In the middle of river course or ditch, generally adopt the open channel flowmeter to gather and measure data such as the water level of rivers, velocity of flow and flow, the open channel flowmeter is generally through sensor acquisition water level and velocity of flow, and the instantaneous flow is calculated according to hydrodynamic model to rethread preset's section parameter, and through the time accumulation, reachs the accumulative flow. With the continuous development of dynamic measurement technology, the requirements of customers on the open channel flow meter are higher and higher. However, when the existing open channel flowmeter is used, the flow measuring device has certain requirements on the channel width of a channel when being installed, and when the channel width of the channel is large, the flow measuring device is not easy to install and debug the flow measuring device, so that the measurement precision of the equipment is not easy to control, and therefore, the parameter measurement of water flow in the channel or river channel is not accurate enough, so that the measurement precision is not high, and the accuracy is poor.

Disclosure of Invention

The invention mainly aims to solve the problems in the prior art and provides an ultra-wide multipurpose open channel flowmeter and an installation method.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a flow measuring device suitable for super wide open channel, is including setting up respectively in two sets of flow measurement units of ditch both sides, and is two sets of measurement route between the flow measurement unit coincides mutually, and every group flow measurement unit connects on the lateral wall of ditch through a fixed basis, flow measurement unit is including setting up the installing support in fixed basis, setting up the measuring probe on the installing support and being used for adjusting the regulating part that measuring probe used the angle, the regulating part sets up on the installing support, and this regulating part is connected with measuring probe.

Furthermore, a channel is formed in the fixed base, and the mounting bracket is fixedly arranged in the channel.

Further, be provided with the arch on the inner wall of channel, be provided with the recess on the installing support, the recess cooperatees the cover and locates on the arch.

Furthermore, a containing cavity is formed in the mounting support, and a plurality of groups of measuring probes are uniformly distributed in the containing cavity.

Further, the adjusting piece is set to be an adjusting bolt, the adjusting bolt is rotatably arranged on the inner wall of the groove, and the output end of the adjusting bolt is rotatably matched with the measuring probe.

Furthermore, two groups of adjusting bolts are arranged on each group of measuring probes and are respectively arranged on two sides of each measuring probe.

Furthermore, the mounting support is provided with a protection plate, the protection plate is provided with a plurality of groups of strip-shaped holes in a matched mode, and the positions of the strip-shaped holes in each group correspond to the measuring positions of a group of measuring probes respectively.

Furthermore, a clamping groove is formed in the mounting support, a clamping strip is connected to the protection plate, and the clamping strip is matched with the clamping strip and clamped in the clamping groove.

Furthermore, a set of the flow measurement unit is acute in angle with the included angle between the flow direction in the canal, and an obtuse angle is formed between the flow measurement unit and the flow direction in the canal.

Furthermore, a plurality of groups of the measuring probes are electrically connected with a time difference type ultrasonic flowmeter.

Further, the fixed foundation is set as a concrete foundation.

A method for installing a flow measuring device according to any one of the preceding claims, comprising the steps of:

the method comprises the following steps that firstly, two groups of flow measurement units are respectively arranged on two sides of a water channel, a support rod group is arranged between the two groups of flow measurement units, and the two groups of flow measurement units are positioned and supported by the support rod group;

step two, respectively pre-fixing the two groups of flow measurement units so as to fix the flow measurement units on the side wall of the water channel;

and step three, adjusting the measurement attitude and the measurement angle of the measurement probe so as to enable the measurement paths of the corresponding measurement probes on the two sides to coincide.

Step four, building a fixed foundation, and reinforcing the space between the flow measurement unit and the side wall of the water channel by using the fixed foundation;

and step five, removing the support rod group after the reinforcement between the flow measurement unit and the side wall of the water channel is completed.

Further, in the first step, the support rod group comprises a plurality of groups of rod pieces, and two ends of each group of rod pieces are respectively abutted against the mounting supports arranged on two sides of the water channel.

Further, in the second step, a mounting bracket in the flow measurement unit is pre-fixed on the side wall of the ditch by using a screw, so that the flow measurement unit is in a proper mounting position.

Furthermore, in the third step, the adjusting bolt is unscrewed, the measuring angle of the measuring probe is adjusted, the adjusting bolt is driven to rotate on the mounting bracket until the measuring paths of the measuring probes corresponding to the two sides of the canal coincide, and the adjusting bolt is screwed after the adjustment is completed, so that the measuring probe keeps the current measuring state.

Further, in the fifth step, after the support rod group is removed, the clamping strip on the protection plate is inserted into the clamping groove, so that the protection plate protects the measuring probe, and the position of the strip-shaped hole on the protection plate corresponds to the position of the corresponding measuring probe.

The invention has the advantages and positive effects that:

(1) the flow measurement device is simple in structure and convenient to use, the flow measurement unit is easy to install on a water channel or a river channel with a larger channel width for use through the matching use between the fixed foundation and the installation support, and the paths of the corresponding measurement probes on the two sides of the water channel are overlapped, so that the accuracy of water flow parameter measurement can be ensured; each group of measuring probes is connected with the mounting bracket through two groups of adjusting parts, so that the measuring postures of the measuring probes can be conveniently debugged by using the adjusting parts, and the measuring accuracy is ensured;

(2) the invention measures the flow of the fluid by utilizing the principle that the time difference of forward flow propagation and reverse flow propagation of ultrasonic waves in the fluid is in direct proportion to the flow velocity of the fluid, so that the flow of the fluid in a water channel or a river channel can be accurately measured; meanwhile, the influence caused by uneven flow velocity distribution in the water channel can be effectively eliminated by adopting a plurality of groups of measuring probes, so that the water channel measuring device can measure the water flow with uneven flow velocity distribution in the water channel or the river channel, the detection precision and the stability of the water flow are improved, and the water channel measuring device can be suitable for the water channels with different cross section types such as U-shaped or trapezoid and the like, and the practicability is improved.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a side view of the present invention;

fig. 3 is a schematic view of the structure of the flow rate measurement unit.

In the figure: 1. fixing a foundation; 2. mounting a bracket; 3. a measuring probe; 4. an adjustment member; 5. a groove; 6. a protrusion; 7. a protection plate; 8. a strip-shaped hole; 9. a clamping groove; 10. and (4) a clamping strip.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description and accompanying drawings that illustrate the invention.

As shown in fig. 1-3, a flow measuring device suitable for an ultra-wide open channel includes two sets of flow measuring units respectively disposed at two sides of the channel, measuring paths between the two sets of flow measuring units coincide, and each set of flow measuring unit is connected to a side wall of the channel through a fixed foundation 1, the flow measuring unit includes a mounting bracket 2 disposed in the fixed foundation 1, a measuring probe 3 disposed on the mounting bracket 2, and an adjusting member 4 for adjusting a use angle of the measuring probe 3, the adjusting member 4 is disposed on the mounting bracket 2, and the adjusting member 4 is connected to the measuring probe 3, and the mounting bracket 2 can be mounted and reinforced by using the fixed foundation 1, so as to ensure firmness of the mounting bracket 2; the water flow measuring units with coincident measuring paths are respectively arranged on the two sides of the water channel, so that the water flow passing through the water channel can be measured, and the measuring paths of the water channel and the water channel are the same, and the measuring directions are opposite, so that the water flow can be measured by adopting a time difference type flow measuring method, and the water flow passing through the measuring probes 3 can be obtained; and the measuring probe 3 is connected with the mounting bracket 2 through the adjusting piece 4, so that the measuring probe 3 can be conveniently debugged in measuring posture and measuring angle by using the adjusting piece 4, and the accuracy of the flow measurement unit in measuring water flow is ensured.

Further, the channel has been seted up on fixed basis 1, and installing support 2 is fixed to be set up in the channel, and the channel provides corresponding mounted position for installing support 2 to it is more reliable and more stable to connect between the two.

Further, be provided with arch 6 on the inner wall of channel, be provided with recess 5 on installing support 2, recess 5 cooperate the cover to locate protruding 6 on, use through the cooperation between arch 6 and the recess 5, can fix installing support 2, avoid installing support 2 to take place the wrong drunkenness in fixed basis 1, also can fix a position installing support 2 simultaneously, make it keep current measuring position.

Furthermore, an accommodating cavity is formed in the mounting bracket 2, a plurality of groups of measuring probes 3 are uniformly distributed in the accommodating cavity, and the accommodating cavity can provide a mounting area for the measuring probes 3; adopt multiunit measuring probe 3, can effectively eliminate the produced influence of velocity of flow maldistribution in the ditch, make it measure to the inhomogeneous rivers of velocity of flow distribution in ditch or the river course, improved detection accuracy and stability to discharge.

Further, the adjusting piece 4 is set to be an adjusting bolt, the adjusting bolt is rotatably arranged on the inner wall of the groove 5, the output end of the adjusting bolt is rotatably matched with the measuring probe 3, when the measuring probe 3 is required to be adjusted, the measuring probe 3 is rotated to enable the measuring probe to rotate along the adjusting bolt until the measuring probe is adjusted to a proper measuring posture, two groups of adjusting bolts are arranged on each group of measuring probe 3, the two groups of adjusting bolts are respectively arranged on two sides of the measuring probe 3, and the measuring probe 3 is guaranteed to be in a stable state when adjusted.

Furthermore, a protection plate 7 is arranged on the mounting support 2, a plurality of groups of strip-shaped holes 8 are formed in the protection plate 7 in a matched mode, the position of each group of strip-shaped holes 8 corresponds to the measuring position of one group of measuring probes 3, a clamping groove 9 is formed in the mounting support 2, a clamping strip 10 is connected to the protection plate 7, the clamping strip 10 is clamped in the clamping groove 9 in a matched mode, the clamping strip 10 arranged on the protection plate 7 is inserted into the clamping groove 9, the clamping strip 10 is clamped in the clamping groove 9, the connecting plate is fixed on the mounting support 2, and the measuring probes 3 are protected; and adopt bar hole 8, can provide with the wide regulation field of vision for adjusting the probe.

Furthermore, an included angle between the measuring direction of the group of flow measuring units and the water flow direction in the water channel is an acute angle, and the included angle is used for measuring the flow velocity of the forward flow velocity water flow in the water channel; the included angle between the measuring direction of another group of flow measuring units and the water flow direction in the water channel is an obtuse angle, the included angle is used for measuring the flow rate of reverse flow velocity water flow in the water channel, the water flow passing through the measuring probes 3 is measured by utilizing the principle that the time difference of downstream propagation and upstream propagation of ultrasonic waves in fluid is in direct proportion to the flow rate of the fluid, the plurality of groups of measuring probes 3 are electrically connected with a time difference type ultrasonic flowmeter, and the time difference type ultrasonic flowmeter is used for counting and metering measured data.

Further, fixed basis 1 sets up to the concrete foundation for it is more firm to be connected between installing support 2 and the ditch lateral wall, also is convenient for use under water for a long time simultaneously.

In addition, the specific structures and working principles of the measuring probe 3, the time difference type ultrasonic flowmeter and the fixed base 1 all belong to the prior art in the technical field, and the invention does not improve the structures and working principles, so that the detailed description is omitted.

The flow measurement device is simple in structure and convenient to use, the flow measurement unit is easy to mount on a water channel or a river channel with a large channel width for use through the matching use between the fixed foundation 1 and the mounting bracket 2, and the paths of the corresponding measurement probes 3 on the two sides of the water channel are overlapped, so that the accuracy of water flow parameter measurement can be ensured; each group of measuring probes 3 is connected with the mounting bracket 2 through two groups of adjusting pieces 4, so that the measuring postures of the measuring probes 3 can be conveniently debugged by using the adjusting pieces 4, and the measuring accuracy is ensured; the invention measures the flow of the fluid by utilizing the principle that the time difference of forward flow propagation and reverse flow propagation of ultrasonic waves in the fluid is in direct proportion to the flow velocity of the fluid, so that the flow of the fluid in a water channel or a river channel can be accurately measured; meanwhile, a plurality of groups of measuring probes 3 are adopted, so that the influence caused by uneven flow velocity distribution in the canal can be effectively eliminated, the flow can be measured aiming at the water flow with uneven flow velocity distribution in the canal or the river channel, the detection precision and the stability of the water flow are improved, the water flow measuring device can be suitable for canals with different cross sections such as U-shaped or trapezoidal sections, and the practicability of the water flow measuring device is improved, and the specific working principle of the water flow measuring device is as follows:

the constructor utilizes the adjusting part 4 to install the measuring probe 3 in the mounting bracket 2, and respectively arranges the two groups of flow measuring units at two sides of the ditch, and utilizes a support rod group to position and support the two groups of flow measuring units; the two groups of flow measurement units are pre-fixed by screws respectively so as to enable the flow measurement units to be in proper installation positions; adjusting the measurement posture and the measurement angle of the measurement probe 3, loosening the adjusting bolt, adjusting the measurement angle of the measurement probe 3 to drive the adjusting bolt to rotate on the mounting bracket 2 until the corresponding measurement paths of the measurement probe 3 on the two sides of the ditch are overlapped, and screwing the adjusting bolt after the adjustment is finished to keep the measurement probe 3 in the current measurement state; building a concrete foundation, and reinforcing the space between the flow measuring unit and the side wall of the ditch by using the concrete foundation; after reinforcement between flow measurement unit and the ditch lateral wall is accomplished, remove the bracing piece group, insert chucking strip 10 on the guard plate 7 in the chucking groove 9 to make guard plate 7 protect measuring probe 3, and make the position in strip-shaped hole 8 on guard plate 7 corresponding with the position of corresponding measuring probe 3, thereby accomplish flow measuring device's installation.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.