An automatic control device for tube well dewatering

Abstract

The utility model discloses a kind of automatic control device of tube well dewatering, including well pipe, the well pipe is buried in underground, the water level measuring mechanism is arranged on the side of well pipe top, the inside of well pipe is provided with water suction pipe, and water suction pipe extends to the top of well pipe and is communicated with outside municipal sewer pipe, the bottom of water suction pipe is provided with water pump, the inside of well pipe is provided with recharge water pipe on one side, the bottom of well pipe outer wall is provided with multiple groups of water-permeable hole;The automatic control system of on-demand dewatering tube well formed by water pump, tube well, water level measuring mechanism, pneumatic valve combination, water level measuring mechanism can be according to the environmental condition of sensor, automatically receive and release measuring rope, and automatically readable measuring rope reading, and transmission is given to external data acquisition analyzer;Pneumatic valve uses the air pressure of air chamber to act on spring push rod, control valve switch degree, adjust the size of water yield.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe well dewatering automation control device technical field, specifically is a pipe well dewatering automation control device. BACKGROUND

[0002] At present, with the continuous deepening of the city modernization process, the engineering construction speed is also faster and faster, the housing construction group is more and more dense, and the urban construction land is more and more nervous;In the dense urban area, how to ensure the safety and stability of the surrounding environment conditions is the most important in the engineering construction process when new engineering projects are built, especially for the engineering projects with basements, during the foundation pit excavation, under the influence of soil pressure and pit side load, the surrounding environment will have certain displacement or deformation;For high water level area, in order to ensure the safety of existing buildings and structures, not only the supporting structure that meets the specification design requirements is needed, but also reliable dewatering design and construction guarantee;

[0003] Generally, the initial underground water level is higher, the water head elevation of the confined water layer can reach 1~3m below the ground surface, before the excavation of the foundation pit earthwork, the overburden soil weight can resist the water pressure of the underground confined water layer, and the phenomenon of sudden gushing will not occur, when the earthwork is excavated, the overburden soil thickness is reduced, and the overburden soil weight is also reduced, once the overburden soil weight is less than the confined water pressure, the foundation pit will gush suddenly;

[0004] The dewatering unit is unwilling to arrange full-time personnel to observe the underground water level in real time to avoid trouble, so it does not consider continuous dewatering, and tends to choose single large pumping volume pumping, the single underground water level drawdown is relatively large, the construction unit carries out construction by taking advantage of the interval of underground water level recovery, when the underground water level recovers, the dewatering work is carried out again, and so on;When the underground water level drawdown is relatively large, the dewatering funnel covers a wide range, when there are important buildings around the foundation pit, the underground water level control may be poor, and then related buildings and structures may be unevenly settled;Therefore, it is urgent to provide an automatic control technology for on-demand dewatering for dewatering engineering. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pipe well dewatering automation control device to solve the problem of how to ensure the on-demand dewatering automation control in the above background technology, and the operability of the construction site must be paid attention to, the sudden gushing phenomenon during the foundation pit construction is protected, at the same time, the surrounding environment is not affected by the underground water drawdown, and the quality problems such as uneven settlement do not occur.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of automatic control device for tube well dewatering, including well pipe, the well pipe is buried in underground, the side of the top of well pipe is provided with water level measuring mechanism, the inside of well pipe is provided with water suction pipe, and water suction pipe extends to the top of well pipe and is communicated with outside municipal sewer pipe, the bottom of water suction pipe is provided with water pump, the side of the inside of well pipe is provided with recharge water pipe, the bottom of well pipe outer wall is provided with multiple groups of water-permeable holes;

[0007] The water level measuring mechanism includes a support frame, which is located on one side of the top of the well pipe. A winding disc set is provided on the support frame. One end of the winding disc set is provided with an indicator light. A connecting rope is wound on the outside of the winding disc set. A rope wheel is provided at a corner on one side of the top of the well pipe. One end of the connecting rope extends to the inside of the well pipe through the rope wheel. A water level sensor is connected to one end of the connecting rope.

[0008] The water suction pipe extending out of the well pipe is provided with a pneumatic valve. The pneumatic valve includes a ball base. A shell is provided on the top of the ball base. A rubber filler is provided in the middle of the inside of the shell. A through hole is formed in the inside of the center of the rubber filler. A gas push rod is provided in the inside of the through hole of the rubber filler. A ball-shaped head is provided on the bottom of the gas push rod. A push rod end cap is mounted on the top of the gas push rod. A spring is sleeved on the top of the outside of the gas push rod. The spring is located between the ball-shaped head and the rubber filler. An air chamber is provided on the inside top of the shell. A push rod end cap sliding seat is mounted on the bottom middle of the air chamber. The push rod end cap slides in the inside of the push rod end cap sliding seat. An air sensor is mounted on one side of the inside of the air chamber. An air port is formed on the top of the shell.

[0009] Preferably, the well pipe is a PVC pipe. The upper end of the outer wall of the well pipe is backfilled with clay balls. The lower end of the outer wall of the well pipe is filled with medium-coarse sand.

[0010] Preferably, the water level sensor extends to the inside of the well pipe and contacts the horizontal plane inside the well pipe.

[0011] Preferably, a semispherical notch is formed in the inside of the ball base, and the semispherical notch is matched with the ball-shaped head.

[0012] Preferably, lubricating oil is provided in the center of the inside of the rubber filler, which contacts the outer wall of the gas push rod, has good lubricating effect, and reduces friction.

[0013] Preferably, limit blocks are mounted on the top of the inner wall of the push rod end cap sliding seat on both sides, which limit the push rod end cap.

[0014] Compared with the prior art, the beneficial effect of the utility model is: the automatic control device of tube well precipitation is combined by the water pump, the tube well, the water level measuring mechanism, the pneumatic valve and forms the automatic control system of tube well precipitation according to demand, the water level measuring mechanism can automatically take up and pay off the measuring rope according to the environmental condition of the sensor, and the measuring rope reading can be automatically read and transmitted to the external data acquisition analyzer; the pneumatic valve utilizes the air pressure of the air chamber to act on the spring push rod, controls the valve opening and closing degree, and adjusts the water discharge size. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the structural schematic diagram of the utility model Figure 1 It is the overhead sectional view of M-M;

[0017] Figure 3 It is the water level measuring mechanism structural schematic diagram of the utility model;

[0018] Figure 4 It is the structural schematic diagram of the pneumatic valve under the closed state of the utility model;

[0019] Figure 5 It is the structural schematic diagram of the pneumatic valve under the open state of the utility model;

[0020] Figure 6 It is the well pipe structural schematic diagram of the utility model.

[0021] In the drawing: 1, well pipe;2, water level measuring mechanism;21, support frame;22, winding disc group;23, indicating lamp;24, connecting rope;25, rope wheel;26, water level sensor;3, water suction pipe;4, water pump;5, rechargeable water pipe;

[0022] 6, pneumatic valve;61, ball base;62, shell;63, rubber packing;64, air push rod;65, ball type head;66, push rod end cap;67, spring;68, air chamber;69, push rod end cap sliding seat;610, air sensor;611, air port. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-6The utility model provides an embodiment: a kind of automatic control device of tube well dewatering, including well pipe 1, well pipe 1 is buried in underground, the side of well pipe 1 top is provided with water level measuring mechanism 2, the inside of well pipe 1 is provided with water suction pipe 3, and water suction pipe 3 extends to the top of well pipe 1 and is communicated with outside municipal sewer, the bottom of water suction pipe 3 is provided with water pump 4, the side of well pipe 1 inside is provided with recharge water pipe 5, the bottom of well pipe 1 outer wall is provided with multiple groups of water-permeable holes;

[0025] Water level measuring mechanism 2 includes support frame 21, support frame 21 is located at the side of well pipe 1 top, support frame 21 is provided with winding disc group 22, winding disc group 22 is provided with indicator light 23 in one end, the outside of winding disc group 22 is wound with connecting rope 24, the side corner of well pipe 1 top is provided with rope wheel 25, one end of connecting rope 24 is extended to the inside of well pipe 1 by rope wheel 25, one end of connecting rope 24 is connected with water level sensor 26, water level sensor 26 extends to the inside of well pipe 1 and contacts with its inside horizontal plane, and the inside water level of well pipe 1 is monitored by water level sensor 26;

[0026] Water suction pipe 3 extends out of well pipe 1 and is provided with pneumatic valve 6, pneumatic valve 6 includes ball base 61, the top of ball base 61 is provided with shell 62, rubber filler 63 is arranged in the middle of shell 62, a through hole is formed in the inside center of rubber filler 63, pneumatic push rod 64 is arranged in the inside through hole of rubber filler 63, ball head 65 is arranged at the bottom of pneumatic push rod 64, push rod end cap 66 is installed at the top of pneumatic push rod 64, spring 67 is sleeved on the top of the outside of pneumatic push rod 64, spring 67 is located between ball head 65 and rubber filler 63, air chamber 68 is arranged in the inner top of shell 62, push rod end cap sliding seat 69 is installed at the bottom middle of air chamber 68, push rod end cap 66 slides in the inside of push rod end cap sliding seat 69, air sensor 610 is installed at one side in the inside of air chamber 68, air hole 611 is formed in the top of shell 62, semisphere-shaped notch is formed in the inside of ball base 61, and semisphere-shaped notch is matched with ball head 65, and the opening and closing effect of pneumatic valve 6 is achieved;Lubricating oil is arranged in the inside center of rubber filler 63, and contacts with the outside of pneumatic push rod 64, so that good lubricating effect is achieved, and friction is reduced;Limiting block is installed on the both sides of the inner wall top of push rod end cap sliding seat 69, and push rod end cap 66 is limited.

[0027] Well pipe 1 is PVC pipe, the upper end of well pipe 1 outer wall is clay ball backfill, and the lower end of well pipe 1 outer wall is medium-coarse sand filling;

[0028] The data acquisition analyzer is connected with the water level measuring mechanism through a wire, analyzes the data signals fed back by the water level measuring mechanism and the pneumatic valve hollow pressure sensor, artificially sets the current underground water level drawdown requirement, outputs the air supply, pressure relief signal and related parameters to the external air compressor, adjusts the pressure in the pneumatic valve chamber, makes the spring and push rod act on the spherical valve, adjusts the opening and closing of the valve, controls the water output, so as to achieve the requirement of the target underground water level drawdown.

[0029] Working principle: the automatic control device for the tube well dewatering first dewatering tube well construction, lowering the water pump 4, laying the water level measuring mechanism 2, and connecting with the external data acquisition analyzer input end, installing the pneumatic valve 6 on the surface section of the water outlet pipe, connecting the air pressure sensor with the data acquisition analyzer input end; providing an air compressor, connecting the air pipe with the pneumatic valve chamber, connecting the air compressor with the data acquisition analyzer output end; artificially setting the current underground water level drawdown range requirement, starting the water pump 4 to carry out the water pumping work; the data acquisition analyzer automatically records the water pumping time, real-time water level drawdown and water output; exporting the dewatering record from the data acquisition analyzer;

[0030] The water level measuring mechanism 2 is driven by the motor on the winding disc group 22 to rotate the winding disc, so as to drive the connecting rope 24 to adjust the position of the water level sensor 26;

[0031] The pneumatic valve 6 is driven by the external air pressure in the chamber 68 to move the push rod end cap 66 and the push rod end cap sliding seat 69, so as to drive the air push rod 64 to move downward, and the elastic restoring force of the spring 67 drives the air push rod 64 to move upward, so as to lift the spherical head 65 to the specified position, open the pneumatic valve 6, and vice versa.

[0032] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

[0033] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. An automated control device for dewatering in a well, comprising a well casing (1), characterized in that: The well pipe (1) is buried underground. A water level measuring mechanism (2) is provided on one side of the top of the well pipe (1). A water suction pipe (3) is provided inside the well pipe (1), and the water suction pipe (3) extends to the top of the well pipe (1) and connects to the external municipal sewer pipe. A water pump (4) is provided at the bottom of the water suction pipe (3). A reinjection water pipe (5) is provided on one side inside the well pipe (1). Multiple sets of permeable holes are opened at the bottom of the outer wall of the well pipe (1). The water level measuring mechanism (2) includes a support frame (21), which is located on one side of the top of the well pipe (1). A winding reel assembly (22) is provided on the support frame (21). An indicator light (23) is provided at one end of the winding reel assembly (22). A connecting rope (24) is wound around the outside of the winding reel assembly (22). A rope wheel (25) is provided at one corner of the top of the well pipe (1). One end of the connecting rope (24) extends into the interior of the well pipe (1) through the rope wheel (25). A water level sensor (26) is connected to one end of the connecting rope (24). The suction pipe (3) extends out of the well pipe (1) and is equipped with a pneumatic valve (6). The pneumatic valve (6) includes a ball base (61). The top of the ball base (61) is equipped with a housing (62). The middle of the housing (62) is equipped with a rubber packing (63). A through hole is opened at the center of the rubber packing (63). An air push rod (64) is installed inside the through hole of the rubber packing (63). A ball head (65) is provided at the bottom of the air push rod (64). A push rod is installed at the top of the air push rod (64). The end cap (66) is fitted with a spring (67) on the top of the outer side of the pneumatic push rod (64). The spring (67) is located between the spherical head (65) and the rubber filler (63). An air chamber (68) is provided on the inner top of the housing (62). A push rod end cap slide (69) is installed in the middle of the bottom of the air chamber (68). The push rod end cap (66) slides inside the push rod end cap slide (69). An air sensor (610) is installed on one side inside the air chamber (68). An air port (611) is opened on the top of the housing (62).

2. The automated control device for well dewatering according to claim 1, characterized in that: The well pipe (1) is a PVC pipe. The upper part of the outer wall of the well pipe (1) is backfilled with clay balls, and the lower part of the outer wall of the well pipe (1) is filled with medium and coarse sand.

3. The automated control device for well dewatering according to claim 1, characterized in that: The water level sensor (26) extends into the well pipe (1) and contacts its internal horizontal surface.

4. The automated control device for well dewatering according to claim 1, characterized in that: The ball base (61) has a hemispherical groove inside, and the hemispherical groove is adapted to the ball head (65).

5. The automated control device for well dewatering according to claim 1, characterized in that: Lubricating oil is provided at the center of the rubber filler (63).

6. The automated control device for well dewatering according to claim 1, characterized in that: Limiting blocks are installed on both sides of the top of the inner wall of the push rod end cap slide (69).

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