Device for supplying water from the well (options)

 

(57) Abstract:

Device for supplying water from the well relates to devices and mechanisms for pumping of artesian water in the main line of urban water systems. The device includes accommodated in the casing tube well discharge pipe, multi-section pump with submersible motor and installed on the delivery pipe main device hydroplane in the composition of the housing and the sealing element, with the goal of improving the capacity of the intake is solved by the fact that the main device hydroplane installed above the static water level in the well, pressure pipeline rigidly mounted accessories, hydroplane hosting one float of a given mass, cavity sealing elements primary and secondary devices hydroplane through drainage systems connected to the cavity pressure piping, drainage accessories, hydroplane provided with valves established by providing a non-rigid contact their sensitive element of the shut-off organ, made in the form of the pusher, with the bottom end automarically fixtures, hydroplane, and tappets loosely associated with the respective float through additional flexible element, the total length of which and the magnitude of the stroke of the plunger is equal to the length of the main flexible elements. 2 C. p. F.-ly, 3 ill.

The invention relates to devices and mechanisms for exploitation of groundwater sources and intakes, particularly 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 that contain placed Blencoe on the delivery pipe below the static water level in the well, the device hydroplane in the composition of the housing and the sealing element [2].

A disadvantage of the known device consists in the following. It is known that underground sources subject to seasonal fluctuations in natural water level. However, the most undesirable are irreversible lowering of the static water level in the well, which can be caused, for example, education of the district of depression under the influence of water from nearby wells. Regardless of hydrologic conditions on power intake can be affected by clogging of wells torn parts of the intake device, clogging of a strainer wells, etc., Therefore, the known device is equipped with a device hydroplane, which is rigidly mounted on the delivery pipe below the static water level. This allows to reduce the impact of natural water level in the well at the power intake. However, in this case, first, stricter complicating the design of the devices hydroplane requirements for reliability of the device, which is a consequence of education in the casing pipe bore water column due to the weight of which the sealing element acts excess pressure under simultaneous exposure to the underside of the specified element discharged air is m above the closer to the static water level posted by the sealing element, because the degree of rarefaction of air over the dynamic water level in the well depends on the distance between the specified level, which must be not less than half a meter above the last section multistage pump, and sealing element devices hydroplane. This affects the capacity of the water intake.

An object of the invention is to increase the capacity of the water intake.

This task is solved in that the device for supplying water from wells containing housed in a casing tube well discharge pipe, multi-section pump with submersible motor and installed on the delivery pipe main device hydroplane in the composition of the housing and the sealing element, the main device hydroplane installed above the static water level in the well, pressure pipeline rigidly mounted accessories, hydroplane hosting one float of a given mass, cavity sealing elements primary and secondary devices hydroplane through drainage systems, connected with the cavity defined by providing a non-rigid contact their sensitive element of the locking member, made in the form of the pusher, with the bottom end of the corresponding float.

This task is solved in that the device for supplying water from wells containing housed in a casing tube well discharge pipe, multi-section pump with submersible motor and installed on the delivery pipe main device hydroplane in the composition of the housing and the sealing element, the main device hydroplane installed above the static water level in the well, pressure pipeline rigidly mounted accessories, hydroplane that on the main flexible elements equal lengths hanging from one float of a given mass, cavity sealing elements of the devices hydroplane through drainage systems connected to the cavity pressure piping, drainage accessories, hydroplane provided with valves the sensitive element of the locking member of each of which is made in the form of a plunger loosely associated with the respective float through additional flexible element, the total length of which and the magnitude of the stroke of the plunger is equal to the length of the main flexible elementele its devices hydroplane.

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, the host device 7 hydroplane, accessories 8-9, hydroplane and floats 10-11 (12-13).

Devices hydroplane composed of housings 14, sealing elements 15, drainage systems, 16-19, valves 20-22 with the pushers 23, the main flexible elements 24 and additional flexible elements 25.

The device operates as follows.

The natural water level in the casing pipe 1 is characterized by a static level of Ao. When the water from the aquifer level in the well 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 will be constant during the pumping of the dynamic level, which, rising gradually as the distance from the well /the curve Boin Fig. 1/ forms a so-called cone of depression of radius Ro.

The distance Sobetween water without the use of devices hydroplane. 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 no less than half a meter above multistage pump 4 (this condition provides the required cooling mode corps last). Therefore, to increase the productivity of wells proposed device is equipped with a main and indefinite number of additional devices 7-9 hydroplane, allowing to increase the value of Sothe value dSxdue to the conditional increase of the static level of Aoto the value of Ax(Fig. 1).

As shown in Fig. 1 main device 7 hydroplane installed on the delivery pipe 2 above the static level of Aowater in the well to prevent excessive pressure on the sealing element 15 device 7 while exposed to the bottom of the discharged air when the flow of water from the well.

Accessories 8-9, hydroplane equipped with floats 10-11, each of which is mounted on the delivery pipe 2 above the relevant fixture. Cavity sealing elements 15 through the 1, established by providing a non-rigid contact their sensitive element of the locking member, is made as of the pusher 23, the bottom end of the corresponding float during installation of the device (Fig. 2).

When immersing the device into the borehole to a predetermined depth floats 10-11 devices 8-9 under the action of buoyancy of the float to the flanges 3 of the discharge pipe 2. After installation run the motor 6. Under the action of centrifugal force created multiple pump 4, the water filling the hole through the water intake grid 5 will be forced into the discharge pipe 2 and through the drain 16 in the cavity sealing element 16 of the main fixtures 7.

When the pressure element 16 values of Pxthe device 7 will cover the gap with the wall of the casing 1, as a result achieving dynamic level Bowater in the well will be accompanied by a weakening effect on the boundaries of atmospheric pressure.

After the time required for lowering the static level of Aothe water in the well to a value of Lothe float 10 will sink to the top end of the first additional device 8 hydro is by and under the action of pressure Pxwater from the discharge pipe 3 into the cavity sealing element 15 through the drain 17, the device 8 is similar to device 7 will cover the gap with the wall of the casing 1. Through the above period of time under the weight of the float 11 will open the valve 21, and so on (Fig. 2).

As a result, each following the lowering of the water level on the value of Lowill be accompanied by an acceleration of the process of weakening of the influence of atmospheric pressure on the surface of the water in the well. The net effect of weakening the specified effect will be expressed by the increment dSxthe rate of Sowells (conditional increase of the static level of Aothe value dSxto the value of Ax) and is determined by the number of additional devices hydroplane.

However, the increase in the inflow of water into the casing 1 of the well from the aquifer will be accompanied by an increase of radius Rofunnel depression on the value of dRx(well production rate using the proposed device in Fig. 1 reflects the curve Bx).

When you turn off the electric motor 6 for maintenance work, or emergency shutoff of the electric motor 6 Poverennova water in the casing pipe 1 well (at the expense of its supply from the aquifer and drip from the discharge pipe through the water intake grid 5) to the level of Aowill occur after low pressure Pxin devices 7-9 to a value of Po. I.e. the gaps between the devices hydroplane device and the wall of the casing 1, which provides smooth lifting device from the well will recover until the ascent of floats 10-11, in which the valves 20-21 closes under the action of springs (Fig. 1-2 not shown) that returns the pushers 23 of these valves to their original state.

According to the second variant floats 12-13 placed on the delivery pipe 2 below additional devices 8-9, hydroplane (Fig. 1). These floats through the main flexible elements 24, evenly placed along the circumference of the selected radius, fixed to the lower end of the housings 14 of the respective devices 8-9, and the pushers 23 of valve 22 loosely associated with the corresponding float through additional flexible elements 25, the total value of the length and magnitude of the stroke of the pusher 23 is chosen equal to the length of the main flexible elements 24 (Fig. 3).

In the initial state floats 12-13 under the action of buoyancy force pressed against the lower end housings 14 fixtures 8-9 Hydra is compared with the first variant of the device, not supplied with springs. I.e. in the process of lowering the static level of Aofloats 12-13 through additional flexible elements affect the plungers 23 and alternately opening the valves 22, holding them open with his weight.

Thus, as mentioned, by placing the main device 7 hydroplane above the static level of Aowater in the well exclude the possibility of the formation above the specified fixture water column, excessive pressure on the wall of the sealing element 15 in the presence of depleted environment under the latter imposes additional constraints on the choice of the design of the device 7 hydroplane device.

However, the inclusion of additional devices 8-9, hydroplane allows not only to compensate for the reduced effect of the use of the device 7 when it is placed above the static level of Aobut also significantly increase the degree of rarefaction of air over the dynamic water level in the well and, thereby, to increase the capacity of the water intake.

The sources of information.

1. Shabalin, A. F. Operation of industrial pipelines. the Chi water from the well, containing housed in a casing tube well discharge pipe, multi-section pump with submersible motor and installed on the delivery pipe main device hydroplane in the composition of the housing and the sealing element, wherein the main device hydroplane installed above the static water level in the well, pressure pipeline rigidly mounted accessories, hydroplane hosting one float of a given mass, cavity sealing elements primary and secondary devices hydroplane through drainage systems connected to the cavity pressure piping, drainage accessories, hydroplane provided with valves that are installed with the software soft contact their sensitive element of the locking member, made in the form of the pusher, with the bottom end of the corresponding float.

2. Device for supplying water from the well, containing accommodation in the casing tube well discharge pipe, multi-section pump with submersible motor and installed on the delivery pipe main device hydroplane in status is prohibited above the static water level in the well, on the delivery pipe is rigidly mounted accessories, hydroplane that on the main flexible elements equal lengths hanging from one float of a given mass, cavity sealing elements of the devices hydroplane through drainage systems connected to the cavity pressure piping, drainage accessories, hydroplane provided with valves, the sensing element of the locking member of each of which is made in the form of a plunger loosely associated with the respective float through additional flexible element, the total length of which and the magnitude of the stroke of the plunger is equal to the length of the main flexible elements.

 

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

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

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

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

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