Device for supplying water from the well

 

(57) Abstract:

The invention relates to devices and mechanisms for exploitation of groundwater and water intake structures, in particular for pumping of artesian water in the main line of urban water systems. The device includes accommodated in the casing pipe discharge pipe, multi-section pump with submersible motor and the device hydroplane installed on the delivery pipe below the static water level in the well, and the device hydroplane made in the form of cuff wedge-shaped, and mounted on the first mounting flange discharge pipe above the wedge-shaped cuff is placed a float on the lower end of which is made radially oriented guides, equipped with compression springs. With the upper edge of the wedge-shaped cuff pivotally connected fixed axis scenes rocker mechanisms, evenly placed along a circle coaxial with the pressure pipe, the movable axis of the wings provided with rollers which are placed in the guides of the float, and the fixed axis of the rocker links mechanisms pivotally connected with the second welding flange pressure of pipelines is othenia between the walls of the discharge pipe and casing wells. 3 Il.

The invention relates to devices and mechanisms for exploitation of groundwater sources and intakes, in particular for pumping of artesian water in the main line of urban water systems.

Known devices for water supply from wells containing discharge pipe immersed in the borehole multistage pump gear shaft running inside the discharge pipe, and a motor mounted on the frame above the mouth of the well [1].

The presence of known devices gear transmission, not allowing you to accurately adjust the clearance between the impellers and guide apparatus of the pump, leading to a greater volume loss, reduced feed pressure and efficiency of the pump.

Closest to the proposed to the technical essence and the achieved effect is a device for supplying water from wells containing housed in a casing pipe, discharge pipe, multi-section pump with submersible motor and the device hydroplane installed on the delivery pipe below the static water level in the well, and made in the th along the discharge pipe to the mouth of the well [2].

A disadvantage of the known device is the unreliability of the seal, which is a consequence of the presence of the water column above the sealing element, made in the form of inflatable chambers, while the impact from the bottom to the specified element of the discharged air.

The objective of the invention is the creation of a reliable seal between the walls of the discharge pipe and casing of the well.

The problem is solved in that the device for supplying water from wells containing housed in a casing pipe, discharge pipe, multi-section pump with submersible motor and the device hydroplane installed on the delivery pipe below the static water level in the well, is solved in that the device hydroplane made in the form of cuff wedge-shaped, and mounted on the first mounting flange discharge pipe above the wedge-shaped cuff is placed a float on the lower end of which is made radially oriented guides, equipped with compression springs, with the upper edge of the wedge-shaped cuff pivotally connected fixed axis scenes rocker mechanisms, evenly placed along the circumference, coaxially with the pressure of the pipeline is ulinich mechanisms pivotally connected with the second welding flange discharge pipe, equipped with a steering lock links.

In Fig. 1 is a diagram of the proposed device for supplying water from the well of Fig.2 - design of its devices hydroplane. In Fig. 3 explains the operation of the device.

The device is located in the casing pipe 1 well and contains a section of the discharge pipe 2 with the flanges 3, multi-section pump with 4 water intake grid 5, submersible motor 6 and the device hydroplane comprising a wedge-shaped cuff 7, mounted on the first flange 8 of the discharge pipe, the float 9 with radially oriented guide rails 10, provided with compression springs 11, and rocker mechanisms 12, containing scenes 13, a fixed axis 14 which is pivotally connected with the upper edge of the cuff, and the movable axis 15 provided with rollers 16, and the links 17 with the moving axes 18, fixed axis 19 which is pivotally connected with the second welding flange 20, provided with a limiter 21 of the angle of rotation of the links rocker mechanisms. The device hydroplane mounted on section 22 of the discharge pipe (Fig.1-2).

In Fig. 3 points ao(A1-A3a ) and (Bo(B1-B3marked respectively fixed (D3) is movable and a stationary axle 18 and 19 of the links 17, the points Eo(E1-E3- float 9.

The device operates as follows.

The natural water level in the casing pipe 1 well is characterized by a static level (line I in Fig.1). After you enable the submersible motor 6 specified level is reduced by the value of Socorresponding to the equilibrium between the amount of water pumped by the pump 4 through the intake grid 5 and the amount of water influx from the aquifer. With the occurrence of the equilibrium in the well continuously during operation of the device the dynamic level, which, rising gradually as the distance from the well (curve II in Fig.1), forms a so-called cone of depression of radius Ro.

The distance Sobetween dynamic and static water levels in proportion to the productivity of the well. When this static level is determined by the hydrodynamic characteristics of groundwater and the value of the atmospheric pressure and the dynamic level should be not less than half a meter above multistage pump 4, which provides the desired cooling of the housing of the latter.additional wells, the power intake will fall by an amount proportional to the value of dSx.

Therefore, to compensate for the influence of the static water level in the well to the pump performance 4 the device is equipped with a device hydroplane in the composition of the cuff 7, the float 9 and rocker mechanisms 12, evenly placed along a circle coaxial with the pressure pipe 2 (Fig. 1).

The sleeve 7 is made wedge-shaped and is mounted on the first mounting flange 8 of the discharge pipe 2. With the upper edge of the cuff 7 pivotally connected stationary (relative to the specified region) axis 14 of the wings 13, the movable axis 15 which is provided with rollers 16, is placed in the guide 10 of the float 9 (Fig.2).

In radially oriented guide 10 is installed on one of the pressure spring 11 acting on the corresponding roller 16 from the side of the casing 1. Fixed axis 19 link 17 pivotally connected with the second welding flange 20, provided with a limiter 21 of the angle of rotation of the links 17 rocker mechanisms 12.

The number of sections of the discharge pipe 2, successively joined by means of flanges 3 at immersing the device in the casing 1 and the preceding section 22, equipped to fit the marks section 22 above the float 9, installed relative to the first weld flange 8 in the original condition in which there is a gap between the sleeve 7 and the casing pipe 1, which allows the immersion of the device into the well.

In the initial state of the float 9 axis 14, 15, 18 and 19 of the rocker mechanisms 12 are located at points A1B1C1and D1respectively (Fig.3).

As the diving section 22 to a predetermined depth, the float 9, reaching the static water level, under the action of buoyancy force will do relative to the flange 8 of the reciprocating displacement along the trajectory: E1-> E2-> E1-> E3. Accordingly, the rocker mechanisms 12, having a non-rigid connection with the float 9 and rigid connection with the pressure pipe 2 will take the position at which the fixed axis 19 of the links 17 will shift from point D1in point of D3sweep: D1-> D2-> Do-> D3. In this case, the axis 14 and 15 scenes 13 describe the trajectory of A1-> A2-> A3and B1-> B2-> B1-> B3respectively, and the axis 18 of the links 17 - path: C1-> Co-> C2-> Co-> C3(Fig.3).

In the three axes of Colin is"beta". Such mutual position of the wings 13 and links 17 is the source i.e. the previous working position in which the axes 14, 15, 18 and 19 correspond to the points AoBoCoand Do.

After mounting the device and run the motor 6, the water from the casing 1 through the intake grid 5 will be forced into the discharge pipe 2. With decreasing water level, the float 9 will translate rocker mechanisms 12 in the working position, in which the upper edge of the cuff 7 will be pressed against the walls of the casing 1 under the action of centrifugal force pump 4 will reliably block above the gap, resulting in the achievement of dynamic water level in the well will be accompanied by a weakening effect on the boundaries of the atmospheric pressure, causing additional water flows from the aquifer into the well casing 1 wells (Fig.2).

In the moment of switching off the electric motor 6 in the result of a sharp rise in water level occurs hammer, which restored the gap between the upper edge of the cuff 7 and the walls of the casing 1. This rocker mechanisms 12 of the working (AoBoCoDo) into the initial state (point A3

If the motor is enabled to conduct maintenance work, to reach the device hydroplane static level and due to the impact on the float 9 buoyancy of the dismantling device (lifting it from the well) will occur when the initial state of the rocker switch mechanisms 12 (A3B3C3D3in Fig.3).

Upon further lifting device rocker mechanisms 12 under the action of the weight of the float 9 will take the position at which the fixed axis 19 of the links 17 will shift from point D3in point of D2sweep: D3-> Do-> D2. When the axes 14 and 15 scenes 13 describe the trajectory of A3-> Ao(A2a ) and (B3-> Bo(B1) -> B2accordingly, the axis 18 of the links 17 - path: C3-> Co-> C2and the float 9 relative to the flange 8 will move along the trajectory: E3-> Eo(E1) -> E2. In the rocker mechanisms 12 will take an intermediate position A2B2C2D2in which the sleeve 7 is pressed against the walls of the casing, the spring guides 11 10 maximally compressed, and the links 17 are in a horizontal position (Fig.3).

and D1after which the rocker mechanisms 12 under the action of the weight of the float 9 will take the position of A1B1C1D1where the gap between the device hydroplane and the wall of the casing 1, which provides smooth lifting device from the well and recovering.

Thus, the presence of the water column above the sealing element devices hydroplane under the simultaneous effect of bottom discharged air, resulting in a disadvantage of the prototype, the proposed device is a prerequisite for reliable operation of the devices hydroplane.

Sources of information

1. Shabalin, A. F. Operation of industrial pipelines. Ed. "Metallurgy", 1972, S. 143.

2. Patent RU N 2083768, class E 03 B 3/08, 1997, bull.19.

Device for supplying water from wells containing housed in a casing pipe, discharge pipe, multi-section pump with submersible motor and the device hydroplane installed on the delivery pipe below the static water level in the well, characterized in that the device hydroplane made in the form of cuff wedge-shaped, and mounted on the first Pref is acted upon radially oriented guides equipped with compression springs, with the upper edge of the wedge-shaped cuff pivotally connected fixed axis scenes rocker mechanisms, evenly placed along a circle coaxial with the pressure pipe, the movable axis of the wings provided with rollers which are placed in the guides of the float, and the fixed axis of the rocker links mechanisms pivotally connected with the second welding flange discharge pipe, provided with a limiter of the angle of rotation of the links.

 

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FIELD: construction.

SUBSTANCE: water-intake tubular well comprises a perforated casing pipe in soil arranged with its perforated section in a water-bearing layer of rocks, and a water-lifting device in it. At the upper end the casing pipe is equipped with a cover with a collar installed on it, on the cord of which there is a water-lifting pipe suspended. The water-lifting pipe has an injection valve at the lower input and a circular body along the casing pipe diameter with a suction valve and elements of hydraulic seal along the external diameter in the form of circular grooves. To drill a water-intake tubular well, a device is used, which comprises drilling pipes and a cutting drilling bit. The drilling bit is equipped with a container with a valve made of light material, for instance, plastic, to stock damaged rock. Drilling pipes are lighter pipes, for instance, water-gas pipes. On the upper end of drilling pipes there is a transverse lever of rotation. In case of high drilling depth a device is used for lowering and raising operations, including a clamp of drilling pipes and a support for clamp placement. The support is made in the form of a well head with openings of trapezoidal shape on the upper end. The clamp is made of one movable and one fixed halves with a tightening bolt and radial levers laid into openings of the well head.

EFFECT: increased height of water raising from a water-intake tubular well.

4 cl, 5 dwg

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