A high-precision water level measuring device for water conservancy projects

Abstract

This utility model relates to the field of water conservancy engineering monitoring and testing technology, and provides a high-precision water level measurement device for water conservancy projects. The device includes: a pressure measuring tube support, a first-section pipe support, an adjustable-level first-section pipe, a standardized extension pipe with a standardized interface, a pipe section connection device, a pressure-stabilizing pipe section capable of housing a liquid level sensor, and a liquid level sensor. The pressure measuring tube support is fixed to the mounting foundation. The first-section pipe support serves as the connection support between the pressure measuring tube support and the first-section pipe. The first-section pipe's horizontal plate is equipped with an elevation measurement benchmark and an XY bidirectional high-precision level. The extension pipe section is connected to the first-section pipe and to the pressure-stabilizing pipe section via the pipe section connection device. The pressure-stabilizing pipe section has a sensor clamping structure installed on its upper part, and a pressure measuring hole array at its lower part and bottom, with a liquid level sensor installed inside. This utility model solves the problems of complex installation, poor adaptability, and low measurement accuracy of traditional pressure measuring tubes.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering monitoring and testing technology, specifically a high-precision water level measuring device for water conservancy projects. Background Technology

[0002] Traditional pressure gauges have three major drawbacks:

[0003] ① The installation relies on pre-embedded structures, which cannot meet the needs of temporary monitoring and detection;

[0004] ②The monolithic design leads to transportation difficulties;

[0005] ③ Insufficient sensor stability affects measurement accuracy.

[0006] Therefore, in view of the above situation, there is an urgent need to provide a high-precision water level measurement device for water conservancy projects to overcome the shortcomings in current practical applications. Utility Model Content

[0007] The purpose of this invention is to provide a high-precision water level measuring device for water conservancy projects, aiming to solve the problems mentioned in the background art.

[0008] This utility model is implemented as follows: a high-precision water level measuring device for water conservancy projects, comprising:

[0009] Pressure testing pipe support, first pipe section support, adjustable level first pipe section, unified extension pipe section with standardized interface, pipe section connection device, pressure stabilizing pipe section and liquid level sensor that can be installed;

[0010] The pressure measuring tube support is fixed on the installation foundation. The first section support is the connecting support between the pressure measuring tube support and the first section support. The first section pipe horizontal plate is equipped with an elevation measurement leveling benchmark and an XY bidirectional high-precision level.

[0011] The extension pipe section is connected to the first pipe section and to the pressure stabilizing pipe section through a pipe section connection device.

[0012] The upper part of the pressure-stabilizing pipe section is equipped with a sensor clamping structure, and the lower part and bottom are provided with a pressure measuring hole array, with a liquid level sensor installed inside.

[0013] As a further embodiment of this utility model: the pressure measuring tube support is divided into clamping support suitable for thin-walled structures, beam support suitable for door groove structures, and cantilever support suitable for thick structures, depending on the different installation environment.

[0014] As a further embodiment of this utility model: a rectangular shaft hole is provided at the center of the first pipe section support, and four screw holes are provided around the rectangular shaft hole. An adjusting screw is installed in the screw hole, and an adjusting nut is installed on the adjusting screw.

[0015] As a further embodiment of this utility model: the first pipe section includes a first pipe and a first pipe horizontal plate, and the first pipe is vertically installed on the first pipe horizontal plate. The first pipe section support is provided with a rectangular shaft hole for the first pipe to pass through. The first pipe horizontal plate is provided with four through holes corresponding to the four screw holes of the first pipe section support. The adjusting screw on the first pipe section support passes through the through hole.

[0016] As a further aspect of this utility model, each section of the extension pipe adopts a standardized length and can be used interchangeably.

[0017] As a further embodiment of this utility model: a pair of sensor clamping holes are provided on the upper part of the pressure stabilizing pipe section, and the sensor clamping structure is fixed to the wing plates on both sides of the clamping holes by screws and nuts, and the liquid level sensor is fixed inside the pressure stabilizing pipe section by the sensor clamping structure.

[0018] As a further embodiment of this utility model: the sensor clamping structure adopts a two-part clamping structure, and a 120° bevel is opened at the contact part between the sensor clamping structure and the sensor, and a rubber layer is installed at the bevel.

[0019] As a further embodiment of this utility model: the first pipe section, the extension pipe section, and the pressure stabilizing pipe section all adopt standardized interfaces, and a boss is provided at the pipe section connection.

[0020] As a further embodiment of this utility model: the pipe segment connection device adopts a split clamp, the split clamp has a groove that matches the standardized interface boss of the pipe segment, and the split clamp is fixed by bolts.

[0021] As a further embodiment of this utility model: the first pipe section support is fixed to the pressure measuring pipe bracket by bolts.

[0022] As a further embodiment of this utility model:

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This device adopts a segmented structural design and combines the water level calculation method of "elevation measurement benchmark point + extension pipe length + sensor data" to solve the problems of complex installation, poor adaptability and low measurement accuracy of traditional pressure measuring pipes. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is an overall structural diagram of the high-precision water level measuring device for water conservancy projects according to the present invention.

[0027] Figure 2 This is a schematic diagram of the first pipe section support installed on the clamping bracket.

[0028] Figure 3 This is a schematic diagram of the first pipe section support installed on the cantilever bracket.

[0029] Figure 4 This is a schematic diagram of the first pipe section support installed on the crossbeam bracket.

[0030] Figure 5 This is a schematic diagram of the first pipe section being installed on the first pipe section support.

[0031] Figure 6 This is a diagram showing the installation structure of the sensor in the voltage stabilizing pipe section.

[0032] Figure 7 This is a schematic diagram of the sensor clamping structure.

[0033] Figure 8 This is a schematic diagram of the pipe segment connection.

[0034] Figure 9 This is a cross-sectional view of the pipe section connection.

[0035] Figure 10 A schematic diagram of the water level calculation algorithm.

[0036] In the attached diagram: 1. Installation foundation; 2. Pressure testing pipe support; 21. Clamping support body; 22. Clamping plate; 23. Screw; 24. Nut; 25. Channel steel of the main body of the crossbeam support; 26. Anchor bolt one; 27. Cantilever support body; 28. Anchor bolt two; 3. First pipe section support; 31. Bolt; 32. Rectangular shaft hole; 33. Adjusting screw; 34. Adjusting nut; 4. First pipe section; 41. Horizontal plate of the first pipe section; 42. First pipe section; 43. Through hole. 44. XY bidirectional high-precision level; 45. Elevation measurement benchmark; 5. Extension pipe section; 6. Pressure stabilizing pipe section; 61. Liquid level sensor clamping window; 62. Fixed wing plate; 63. Pressure stabilizing and measuring hole array; 7. Liquid level sensor; 8. Sensor clamping structure; 81. Clamp; 82. Fixed screw; 83. Fastening nut one; 84. Rubber layer; 9. Pipe section connection device; 91. Split clamp; 92. Fastening nut two; 93. Groove; 10. Boss. Detailed Implementation

[0037] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0041] Please see Figures 1-10 (in Figure 1 (Taking a clamping bracket installation as an example, with two extension pipe sections), this utility model embodiment provides a high-precision water level measuring device for water conservancy projects, which includes a selectable pressure measuring pipe bracket 2, a first pipe section support 3, an adjustable level first pipe section 4, an extension pipe section 5, a pressure stabilizing pipe section 6, a liquid level sensor 7, a sensor clamping structure 8, and a pipe section connecting device 9. The pressure measuring pipe bracket 2 is fixed on the installation base 1, the first pipe section support 3 is installed and fixed on the pressure measuring pipe bracket 2, the first pipe section 4 is fixed on the first pipe section support 3, and the liquid level sensor 7 is fixed on the upper part of the pressure stabilizing pipe section 6 through the sensor clamping structure 8. The first pipe section 4, the extension pipe section 5, and the pressure stabilizing pipe section 6 are connected by the pipe section connecting device 9.

[0042] The pressure measuring tube support 2 is available in three optional modes depending on the installation environment: a clamping support (including clamping support body 21, clamping plate 22, screw 23, nut 24) suitable for thin-walled structures, a beam support (including beam support body channel steel 25, anchor bolt 1 26) suitable for door-shaped structures, and a cantilever support (including cantilever support body 27, anchor bolt 28) suitable for thick structures. Figure 2 This is a schematic diagram of the first pipe section support being installed on the clamping bracket. The clamping bracket body 21 and the clamping plate 22 are clamped and fixed on the installation foundation 1 by adjusting the nuts 24 on the three screws 23. Figure 3 A schematic diagram of the first pipe section support being installed on the crossbeam bracket. The main channel steel 25 of the crossbeam bracket is fixed to the installation foundation 1 by anchor bolts 26. Figure 4 This is a schematic diagram of the first pipe section support being installed on the cantilever bracket. The main body 27 of the cantilever bracket is fixed to the installation foundation 1 by anchor bolts 28.

[0043] The first pipe section support 3 is a connecting support between the pressure measuring pipe support 2 and the first pipe section 4. It is fixed to the pressure measuring pipe support 2 by bolts 31 in four directions. A rectangular shaft hole 32 is opened in the center of the first pipe section support 3. Four screw holes are opened in four directions around the rectangular shaft hole 32. Adjusting screws 33 are installed in the screw holes, and adjusting nuts 34 are installed on the adjusting screws 33.

[0044] The first pipe section 4 consists of a first pipe section horizontal plate 41 and a first pipe section 42. The first pipe section horizontal plate 41 has a through hole at its center, consistent with that of the first pipe section 42. The first pipe section horizontal plate 41 has through holes 43 at four locations that match the adjusting screws 33 on the first pipe section support 3. Fine-tuning of the first pipe section's level is achieved by adjusting the adjusting nuts 34 on the adjusting screws 33 at the four locations on the first pipe section support 3. The first pipe section horizontal plate 41 is equipped with an XY bidirectional high-precision level 44 and an elevation measurement benchmark 45. The distance from the elevation measurement benchmark point of the first pipe section to the connecting plane of the first pipe section is L1.

[0045] The extension pipe section 5 is designed and manufactured in a standardized manner, and each section has the same length (distance between connecting end faces) L2, which can be used interchangeably.

[0046] The upper part of the pressure-stabilizing pipe section 6 has a liquid level sensor clamping window 61, and a sensor clamping structure fixing wing plate 62 is located next to the liquid level sensor clamping window 61. The liquid level sensor 7 is fixed inside the pressure-stabilizing pipe section 6 by the sensor clamping structure 8. The lower part of the pressure-stabilizing pipe section is a pressure-stabilizing cavity, and a pressure-stabilizing and pressure-measuring hole array 63 is provided around the cavity and at the bottom. The pressure-measuring end face of the liquid level sensor is located in the middle of the pressure-stabilizing cavity, and the distance from the connecting end face of the pressure-stabilizing pipe section to the pressure-measuring end face of the liquid level sensor is L3.

[0047] The sensor clamping structure 8 consists of a pair of clamps 81, a fixing screw 82, and a fastening nut 83. The sensor clamp has a 120-degree opening, and a layer of rubber 84 is fixed to the opening surface in a dovetail groove shape. After the fixing screw 82 passes through the fixing wing plate 62 of the pressure stabilizing pipe section, the position of the liquid level sensor 7 can be fixed by adjusting the fastening nut 83.

[0048] Each pipe section connection end face adopts a standardized interface design, and each pipe section connection end face is provided with a uniform boss 10. The first pipe section 4, the extension pipe section 5, and the pressure stabilizing pipe section 6 can be quickly disassembled and assembled through the pipe section connection device 9.

[0049] The pipe section connection device 9 adopts a split clamp design. The split clamp 91 is locked by a fastening nut 92. The split clamp 91 has a groove inside, and the groove 93 matches a pair of standardized interface bosses 10.

[0050] like Figure 10 As shown, the specific installation steps and water level calculation algorithm of the high-precision water level measuring device and water level calculation algorithm for water conservancy projects described above are as follows:

[0051] S1. Select a suitable pressure testing tube bracket 2 according to the on-site installation environment, and install and fix the pressure testing tube bracket on the foundation 1;

[0052] S2. Fix the first pipe section support to the pressure testing pipe bracket 2 with bolts 31;

[0053] S3. Fix the liquid level sensor 7 inside the pressure stabilizing pipe section 6 through the sensor clamping structure 8, and measure and record the distance L3 from the connection end face of the pressure stabilizing pipe to the pressure measuring end face of the liquid level sensor.

[0054] S4. Determine the number n of extension pipe sections 5 based on the estimated water level;

[0055] S5. Pass the signal cable of the liquid level sensor 7 through the extension pipe section 5 and the first pipe section 4 in sequence, and assemble and connect each pipe section through the pipe section connecting device 9.

[0056] S6. Pass the assembled pipe section through the central rectangular shaft hole 32 of the first pipe section support 3. Pass the four through holes 43 on the horizontal plate 41 of the first pipe section through the four adjusting screws 33 on the support plate of the first pipe section. Adjust the first pipe section support 3 by cooperating with the adjusting screws 33 and adjusting nuts 34 to make the readings of the XY bidirectional high-precision level 44 on the first pipe section 4 less than 0.1°. Then lock the adjusting nuts 34.

[0057] S7. Measure and record the elevation Z of the elevation measurement leveling benchmark 45 on the horizontal plate 41 of the first pipe section.

[0058] S8. Calculate the measured water level according to the water level calculation algorithm H = Z - L1 - nL2 - L3 + H1, where H is the water level, Z is the actual elevation value of the first pipe section elevation measurement benchmark, L1 is the distance from the first pipe section elevation measurement benchmark to the first pipe section connection plane, L2 is the length of the extension pipe section, n is the number of extension pipe sections used, L3 is the distance from the pressure stabilizing pipe connection plane to the pressure measuring section of the liquid level sensor, and H1 is the height from the liquid level measured by the liquid level sensor to the pressure measuring section of the sensor.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-precision water level measuring device for water conservancy projects, characterized in that, include: Pressure measuring tube support (2), first section support (3), first section with adjustable level (4), unified extension section with standardized interface (5), pipe section connection device (9), pressure stabilizing pipe section (6) and liquid level sensor (7) that can be equipped with liquid level sensor. The pressure measuring tube support (2) is fixed on the installation foundation (1), the first section support (3) is the connecting support between the pressure measuring tube support (2) and the first section (4), and the first section horizontal plate (41) is provided with an elevation measurement leveling benchmark (45) and an XY bidirectional high-precision level (44); The extension pipe section (5) is connected to the first pipe section (4) and the extension pipe section (5) is connected to the pressure stabilizing pipe section (6) by a pipe section connecting device (9); The pressure stabilizing pipe section (6) is equipped with a sensor clamping structure (8) on the upper part, and a pressure measuring hole array (63) is provided on the lower part and bottom, with a liquid level sensor (7) installed inside.

2. The high-precision water level measuring device according to claim 1, characterized in that: The pressure measuring tube support (2) is divided into clamping supports suitable for thin-walled structures, beam supports suitable for door slot structures, and cantilever supports suitable for thick structures, depending on the different installation environments.

3. The high-precision water level measuring device according to claim 1, characterized in that: The first section of the pipe support (3) has a rectangular shaft hole (32) in the center, and four screw holes are opened around the rectangular shaft hole (32). An adjusting screw (33) is installed in the screw hole, and an adjusting nut (34) is installed on the adjusting screw (33).

4. The high-precision water level measuring device according to claim 1, characterized in that: The first pipe section (4) includes a first pipe section (42) and a first pipe section horizontal plate (41), and the first pipe section (42) is vertically installed on the first pipe section horizontal plate (41). The first pipe section support (3) is provided with a rectangular shaft hole (32) for the first pipe section (42) to pass through. The first pipe section horizontal plate (41) is provided with four through holes (43) corresponding to the four screw holes of the first pipe section support (3). The adjusting screw (33) on the first pipe section support (3) passes through the through hole (43).

5. The high-precision water level measuring device according to claim 1, characterized in that: Each of the extension pipe sections (5) adopts a standardized length and can be used interchangeably.

6. The high-precision water level measuring device according to claim 1, characterized in that: The pressure stabilizing pipe section (6) has a pair of sensor clamping holes (61) on its upper part. The sensor clamping structure (8) is fixed on the wing plates (62) on both sides of the clamping holes (61) by screws (82) and nuts (83). The liquid level sensor (7) is fixed inside the pressure stabilizing pipe section (6) by the sensor clamping structure (8).

7. The high-precision water level measuring device according to claim 6, characterized in that: The sensor clamping structure (8) adopts a two-part clamp (81) structure. A 120° bevel is opened at the contact part between the sensor clamping structure (8) and the sensor (7), and a rubber layer (84) is installed at the bevel.

8. The high-precision water level measuring device according to claim 1, characterized in that: The first pipe section (4), the extension pipe section (5), and the pressure stabilizing pipe section (6) all adopt standardized interfaces, and a boss (10) is set at the pipe section connection.

9. The high-precision water level measuring device according to claim 8, characterized in that: The pipe section connection device (9) adopts a split clamp (91). The split clamp (91) has a groove (93) that matches the standardized interface boss (10) of the pipe section. The split clamp (91) is fixed by bolts (92).

10. The high-precision water level measuring device according to claim 1, characterized in that: The first pipe section support (3) is fixed to the pressure measuring pipe support (2) by bolts.

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