CN113049040A

CN113049040A - Leakage and sediment sensing device for well point dewatering

Info

Publication number: CN113049040A
Application number: CN202110289881.3A
Authority: CN
Inventors: 朱芬芳
Original assignee: Individual
Current assignee: Nanjing Chaotu Small And Medium Sized Enterprise Information Service Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-06-29
Anticipated expiration: 2041-03-18
Also published as: CN113049040B

Abstract

The invention relates to the technical field of high-precision sensor equipment, and discloses a leakage and sediment sensing device for well point dewatering. This a leak and silt induction system for well point precipitation is used, under the effect of centrifugal force, catch and deposit the silt in the rivers, and then the silt content in the feedback rivers, carry out real-time control to the muddy condition of rivers, in time discover rivers muddy, avoid the base soil granule to run off, produce and subside, phenomenons such as fracture, the security of construction is improved, secondly, directly detect the velocity of flow condition of rivers in the shaft bottom, know the behavior of water well in real time, for manometer or level sensor, the degree of accuracy and reliability are higher, still when because stopping up the dead well, can directly lead to the underground water velocity of flow to be zero, consequently, in time discover and get rid of.

Description

Leakage and sediment sensing device for well point dewatering

Technical Field

The invention relates to the technical field of high-precision sensor equipment, in particular to a leakage and sediment sensing device for well point dewatering.

Background

During engineering construction, the situation that the underground water level is high is often met, at the moment, well point dewatering construction is generally adopted to reduce the underground water level so as to drain water in foundation soil and promote soil body consolidation, namely a certain number of water filtering wells are buried around a foundation pit, water is pumped from the water filtering wells by using a water pumping device, and the underground water level is always maintained at the elevation of the pit bottom until backfilling is completed or an underground structure has enough anti-floating capacity.

When water is pumped, if the outlet water is always turbid, the phenomenon that the water is pumped to cause the loss of nearby foundation soil particles, the phenomena of sedimentation, cracking and the like are generated, therefore, the water quality needs to be monitored in the water pumping process, the outlet water is clear, the real-time performance cannot be guaranteed in the existing monitoring of the water quality containing silt, and the time delay is large.

Secondly, pumping water is a dynamic process, namely, underground water can also flow back and be supplemented while pumping water, because the permeability and the water permeability of the stratum at different time of different sections are different, the pumping water and the backwater can not be in a balanced state all the time, some wells can be quickly pumped, the water level of other wells is slowly reduced, the running state of the equipment is monitored by the conventional equipment through a pressure gauge or a water level sensor, if the equipment is positioned on the well, the comprehensive effect of leakage and blockage can influence the running monitoring accuracy of the equipment, and if the equipment is positioned under the well, the reliability and the service life of the equipment can be reduced by silt and the like. In addition, in the process of pumping water, whether a 'dead well' is blocked or not is also checked, when the 'dead well' is too many and the precipitation effect is seriously influenced, the existing manual inspection is usually carried out to judge whether the dead well is generated or not, and the hysteresis is larger.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the technical scheme of the leakage and sediment sensing device for well point dewatering, which is suitable for light well point dewatering, has the advantages of high accuracy, good reliability, real-time detection of sediment content and the like, and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a leak and silt induction system for well point precipitation is used, includes the installation pipe, the inside fixedly connected with installation piece of installation pipe, the upper and lower terminal surface of installation piece is connected with first connecting pipe and second connecting pipe respectively, all be connected through the elastic component between first connecting pipe and second connecting pipe and the installation piece, the inner wall fixedly connected with second tile of second connecting pipe, the first tile of inner wall fixedly connected with of first connecting pipe, first tile and the crisscross setting of second tile are every two be equipped with the expansion plate between first tile and the second tile, first tile, second tile and the synthetic "Z" font passageway of expansion plate, the expansion plate is scalable, be equipped with first sensor between first connecting pipe and the installation piece, be equipped with the second sensor between installation piece and the second connecting pipe.

Preferably, the equal fixedly connected with spacing of lateral wall of first connecting pipe and second connecting pipe, the inside wall of installation pipe is equipped with the spacing groove that corresponds with spacing, all be equipped with the tarpaulin between the terminal surface of installation pipe and second connecting pipe, between the terminal surface of installation pipe and first connecting pipe and between the inside wall of first connecting pipe and second connecting pipe.

Preferably, the first sensor and the second sensor are installed in an embedded mode, and three groups of the first sensor and three groups of the second sensor are arranged.

Preferably, the first sensor comprises a first electric plate, a second electric plate and a waterproof jacket, the waterproof jacket wraps and seals the first electric plate and the second electric plate, and the structure of the second sensor is the same as that of the first sensor.

Preferably, the surface of the expansion plate is provided with wrinkles.

The invention has the following beneficial effects:

1. this a leak and silt induction system for well point precipitation is used, under the effect of centrifugal force, catch and deposit the silt in the rivers, and then the silt content in the feedback rivers carries out real-time control to the muddy condition of rivers, and in time discover that rivers are muddy, avoid the loss of foundation soil granule, produce phenomenons such as subsiding, fracture, improve the security of construction.

2. This a leak and silt induction system for well point precipitation is used, direct velocity of flow condition to rivers at the shaft bottom detects, knows the behavior of water well in real time, for manometer or level sensor, the degree of accuracy and reliability are higher, secondly when because block up the dead well, can directly lead to the underground water velocity of flow to be zero, consequently can in time discover and get rid of, guarantees the efficiency of precipitation.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is a schematic view of the structure of a second connecting tube and a second tile according to the present invention;

FIG. 4 is a schematic structural diagram of a first sensor according to the present invention;

fig. 5 is a schematic view of a channel structure composed of a first tile, a second tile and a telescopic plate in the structure of the invention.

In the figure: 1. installing a pipe; 2. mounting a sheet; 3. a first connecting pipe; 4. a second connecting pipe; 5. a first tile; 6. a second tile; 7. a retractable plate; 8. a first sensor; 81. a first electric plate; 82. a second electrode plate; 83. a waterproof jacket; 9. a second sensor; 10. a limiting strip; 11. a limiting groove; 12. a waterproof cloth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a leakage and silt sensing device for well point precipitation comprises a mounting pipe 1, a mounting plate 2 is fixedly connected inside the mounting pipe 1, the mounting plate 2 is arranged in the middle of the mounting pipe 1, the upper end surface and the lower end surface of the mounting plate 2 are respectively connected with a first connecting pipe 3 and a second connecting pipe 4, the first connecting pipe 3 and the second connecting pipe 4 are connected with the mounting plate 2 through elastic members, the first connecting pipe 3 and the second connecting pipe 4 can move relative to the mounting plate 2 and have an initial position under the action of elastic force, the inner wall of the second connecting pipe 4 is fixedly connected with a second tile 6, the inner wall of the first connecting pipe 3 is fixedly connected with a first tile 5, the first tile 5 and the second tile 6 are arranged in a staggered manner, a telescopic plate 7 is arranged between every two first tiles 5 and the second tile 6, the first tile 5, the second tile 6 and the telescopic plate 7 are combined into a Z-shaped channel, expansion plate 7 is scalable, after

second tile

6 and 5 relative movement of first tile, the passageway still remains in succession, be equipped with first sensor 8 between first connecting pipe 3 and installation piece 2, be equipped with second sensor 9 between installation piece 2 and the second connecting pipe 4, rivers flow from bottom to top, if silt content is great, because the quality is big, centrifugal force is big, turn redirecting formula many times, can separate with the flowing water, and gather on first tile 5, make the quality grow of first tile 5, drive

first tile

5 and 3 whole downstream of first connecting pipe, the change of first sensor 8 response distance, thereby judge the condition that the aquatic contains silt, secondly the difference of velocity of water, also can change with the effort of second tile 6, the change of rivers is judged to the interval of responding to through second sensor 9.

Please refer to fig. 2, wherein, the outer side walls of the first connecting pipe 3 and the second connecting pipe 4 are fixedly connected with a limiting strip 10, the inner side wall of the mounting pipe 1 is provided with a limiting groove 11 corresponding to the limiting strip 10, the limiting strip 10 slides in the limiting groove 11, the second connecting pipe 4 and the first connecting pipe 3 are limited, the first connecting pipe 3 and the second connecting pipe 4 vertically move up and down, the sensing precision of the sensor is ensured, between the end surfaces of the mounting pipe 1 and the second connecting pipe 4, waterproof cloth 12 is arranged between the end surfaces of the mounting pipe 1 and the first connecting pipe 3 and between the inner side walls of the first connecting pipe 3 and the second connecting pipe 4, silt is prevented from entering the gap, the free sliding of the first connecting pipe 3 and the second connecting pipe 4 is ensured, and the measuring precision is ensured.

Referring to fig. 3, the first sensor 8 and the second sensor 9 are installed in an embedded manner, so as to reduce the exposed and occupied volume, three sets of the first sensor 8 and the second sensor 9 are provided, and a plurality of angle measurement assemblies are provided, so as to eliminate the influence of uneven stress and improve the accuracy.

Referring to fig. 4, the first sensor 8 includes a first electric plate 81, a second electric plate 82 and a waterproof jacket 83, the waterproof jacket 83 encloses and seals the first electric plate 81 and the second electric plate 82, the structure of the second sensor 9 is the same as that of the first sensor 8, two ends of the first sensor 8 and two ends of the second sensor 9 are fixedly connected to end faces of the first connecting pipe 3, the mounting plate 2 and the second connecting pipe 4, respectively, and the change of the distance is utilized to change the size of the capacitance to track the change of the distance.

Referring to fig. 5, the surface of the expansion plate 7 is provided with wrinkles, when the water flows along the surfaces of the first tile 5 and the second tile 6, the larger the mass is, the larger the centrifugal force is, and the wrinkles, which are caused by the silt moving to the expansion plate 7 along the inner wall, are blocked, so that the silt is further separated from the water flow.

The working principle and the working process of the invention are as follows:

fix the device at the inner wall of pipe that absorbs water through installation pipe 1, rivers advance and pass through the passageway of compriseing first tile 5, expansion plate 7 and second connecting pipe 4, water pressure is used in second tile 6, make 6 upshifts of second tile, thereby the change condition of second sensor 9 feedback distance's change feedback rivers, and when silt content was too big in rivers, silt is when advancing the passageway, can deposit under the effect of centrifugal force, can produce great sediment when silt content is too big, detect the displacement through first sensor 8 and confirm silt content, the effort calculation that rivers effort accessible second tile 6 that first tile 5 received is eliminated, obtain comparatively accurate silt volume.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a leak and silt induction system for well point dewatering is used, includes installation pipe (1), the inside fixedly connected with installation piece (2) of installation pipe (1), its characterized in that: the upper end surface and the lower end surface of the mounting piece (2) are respectively connected with a first connecting pipe (3) and a second connecting pipe (4), the first connecting pipe (3) and the second connecting pipe (4) are connected with the mounting piece (2) through elastic pieces, the inner wall of the second connecting pipe (4) is fixedly connected with a second tile (6), the inner wall of the first connecting pipe (3) is fixedly connected with a first tile (5), the first tiles (5) and the second tiles (6) are arranged in a staggered manner, a telescopic plate (7) is arranged between every two first tiles (5) and every two second tiles (6), the first tile (5), the second tile (6) and the expansion plate (7) are combined into a Z-shaped channel, the expansion plate (7) is telescopic, a first sensor (8) is arranged between the first connecting pipe (3) and the mounting piece (2), and a second sensor (9) is arranged between the mounting piece (2) and the second connecting pipe (4).

2. A leak and silt sensing apparatus for use in connection with well point precipitation according to claim 1, wherein: the equal fixedly connected with of lateral wall of first connecting pipe (3) and second connecting pipe (4) spacing strip (10), the inside wall of installation pipe (1) is equipped with spacing groove (11) that correspond with spacing strip (10), all be equipped with tarpaulin (12) between the terminal surface of installation pipe (1) and second connecting pipe (4), between the terminal surface of installation pipe (1) and first connecting pipe (3) and between the inside wall of first connecting pipe (3) and second connecting pipe (4).

3. A leak and silt sensing apparatus for use in connection with well point precipitation according to claim 1, wherein: the first sensor (8) and the second sensor (9) are installed in an embedded mode, and three groups of the first sensor (8) and the second sensor (9) are arranged.

4. A leak and silt sensing apparatus for use in connection with well point precipitation according to claim 1, wherein: the first sensor (8) comprises a first electric plate (81), a second electric plate (82) and a waterproof sleeve (83), the waterproof sleeve (83) wraps and seals the first electric plate (81) and the second electric plate (82), and the structure of the second sensor (9) is the same as that of the first sensor (8).

5. A leak and silt sensing apparatus for use in connection with well point precipitation according to claim 1, wherein: the surface of the expansion plate (7) is provided with folds.