CN2531140Y

CN2531140Y - Pump for semisubmersible well

Info

Publication number: CN2531140Y
Application number: CN 01230122
Authority: CN
Inventors: 李天宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-11
Filing date: 2001-07-11
Publication date: 2003-01-15
Anticipated expiration: 2011-07-11

Abstract

A semi-submersible well pump of the utility model is characterized in that: the underground and ground two-pump cascade type is adopted in structure, a flexible aqueduct is added between a water inlet of upper pump and a water outlet of lower pump, and a flexible axle drive is adopted between two impeller shafts of upper pump and lower pump. Thus, the pump can be moved conveniently when water is pumped from a changed well and can realize the purpose of pumping water by means of multi flow with one pump. Meanwhile, since the utility model is simple in structure and low in cost, the utility model has significant meaning and broad market prospect in implementing agriculture well irrigation operation in the areas such as north China, northeast China, and northwest China, etc. in north area of Yellow River whose underground water level is below ten meters and rural economy is underdevelopment.

Description

The semi-submersible type Pump for well

Semi-submersible type Pump for well of the present utility model relates to the Pump for well technical field.

The Pump for well of prior art has the 5th part in the 253 page to sixteen 52 pages of " pump product sample " volume two that Shenyang water pump research institute published and published in 1998, that introduces in " well pump; Submerged Motor Pumps " has: power is placed on the well head, the borehole shaft drivenpump of forming by the multistage centrifugal water pump by rigidity major axis transmission down-hole, directly connect two kinds of Submerged Motor Pumpss of all-in-one-piece well with submersible electric motor and multistage centrifugal pump, because borehole shaft drivenpump adopts the transmission of rigidity major axis in structure, so for requirement fixing and supporting long pass axle, its water transport pipeline can only adopt the better rigidity seamless steel pipe, borehole shaft drivenpump is owing to the hydraulic component of whole lifts in whole the pump all is placed in the down-hole in addition, and the radial dimension of pump is subjected to the constraint of well internal diameter, therefore when the total head of pump is higher, the progression of pump is just more, it is more elongated that pump structure seems, radial rigidity is relatively poor, weight is also heavier, and price is higher, and dismounting is also inconvenient.Though it is the structure of one that well has adopted pump and submersible electric motor with Submerged Motor Pumps, cancelled long rigid shaft, but because the hydraulic part of submersible electric motor and pump is all in the down-hole, weight is heavier, the reaction force that produces during for the weight of bearing whole Submerged Motor Pumps and Submerged Motor Pumps work, can not adopt the relatively poor soft water transport pipeline of rigidity, also can only use metal pipe, in addition owing to work in the long-term potential water of motor, therefore its reliability is also poor at the motor of aboveground work, and require also more complicated of its structure because of diving operation, price is also high a lot, and the same, owing to used metal pipe to make the installation of pump with borehole shaft drivenpump, maintenance and mobile all inconvenient.So above-mentioned two kinds of Pump for well all only are suitable for the fixedly use occasion of a well one pump.

The purpose of this utility model is to make that a kind of weight is light, price is lower, movable maintenance is convenient, be suitable for especially can be in Duo Koujing the semi-submersible type Pump for well of frequent mobile water lift.

Below in conjunction with the description of drawings the purpose of this utility model is to realize like this, Fig. 1 is that the structure of the utility model semi-submersible type Pump for well is implemented figure, it goes up the flexible pipe 6 that pump 1 is made by rubber or PVC plastics or nylon by vertical more than the one-level that is installed on the well head or horizontal type structure centrifugal,

flexible axle sheath

5,4 two kinds of Hooks coupling universal coupling formula flexible axle or the wire type flexible axles made by Stainless Steel Wire or black carbon steel wire, when flexible axle 4 is made for black carbon element steel, scribble the following pump 7 that one deck synthetic rubber or PVC plastics or nylon corrosion-inhibiting coating and the centrifugal or axial flow more than the one-level made by non-ferrous metals such as ferrous metal or aluminium or copper or engineering plastics such as stainless steel or nylon or polyoxymethylene forms on its surface.It is characterized in that between the water outlet of the water intake of last pump 1 and following pump 7, the water transport pipeline of a flexible pipe 6 being arranged, the transmission shaft of a flexible axle 4 is arranged in water transport pipeline, be bound up between two impeller shafts of pump 1 and following pump 7.Its working principle is: power is from the impeller shaft end input of last pump 1, the impeller work done of pump 1 in the driving, simultaneously by connecting firmly at the flexible axle 4 of impeller shaft end and the impeller shaft of following pump 7, make down the impeller rotation and the work done synchronously of pump 7, finish the last pump 1 of from well, giving well head, finish the water lift task according to the requirement pressurization water supply that actual job uses by last pump 1 by following pump 7 water lifts.The water intake that requires only to need to satisfy from the WIH face to well head pump 1 owing to the lift that is in the following pump 7 in the well gets final product, the corresponding progression of following pump 7 can be less, transmission power also can be less, and condition has been created in application light for weight, that be convenient to install mobile flexible pipe 6 and flexible axle 4, can not be subjected to the restriction of hole diameter in addition owing to the radial dimension of pump 1 on the well head, therefore be exactly to need remote water delivery or high-lift water supply to finish by last pump 1, needn't establish pressurization device in addition, thereby make the installation cost of pump lower.

Fig. 2 is that the another kind of structure of semi-submersible type Pump for well is implemented figure, because last pump 1 has adopted horizontal type structure, has therefore set up bend pipe 3 in the water transport pipeline between the water outlet of last pump 1 water intake and following pump 7 except that flexible pipe 6 here.And several Cardon universal joints or Rzeppa type Hooks coupling universal coupling 2 between the impeller shaft end of last pump 1 and flexible axle 4, have been connected in series as rotary driving mechanism, thereby improved significantly flexible axle 4 bending radius hour transmission power and the feasibility of operation, its working principle is described identical with Fig. 1.

Semi-submersible type Pump for well of the present utility model, owing to adopted aboveground pump and the cascaded structure pattern that slips into the underwell pump under the WIH, the last pump water inlet mouth that makes the water lift lift of underwell pump only need arrive well head gets final product, the ground actual lift that uses then has the last pump of well head to finish, thereby make down the transmission power of pump can be less, for flexible axle transmission and last pump water inlet mouth and pump down that flexible pipe water-conveying between the mouth of a river provides may.So semi-submersible type Pump for well of the present utility model, it not only have borehole shaft drivenpump and well with Submerged Motor Pumps can be in the well below ten meters the function of water lift, it is lower also to have price simultaneously, weight is lighter, conveniently moving is specially adapted to level of ground water such as North China, northeast, northwest to the north of China the Yellow River below ten meters, simultaneously rural economy areas of well-being very not also, implement the agricultural water-saving irrigation operation of the many wells of a pump, have vast market prospect.

Claims

1, a kind of semi-submersible type Pump for well is gone up under pump, conduit pipe and the centrifugal or axial flow more than the one-level pump etc. by centrifugal more than the one-level and is formed, it is characterized in that having between the water outlet of the water intake of pump (1) and following pump (7) water transport pipeline of a flexible pipe (6), the transmission shaft that a flexible axle (4) is arranged in water transport pipeline is bound up between two impeller shafts of pump (1) and following pump (7).

2, semi-submersible type Pump for well according to claim 1 is characterized in that flexible axle (4) has two kinds of the flexible axles that Hooks coupling universal coupling formula flexible axle or steel wire make.

3, semi-submersible type Pump for well according to claim 1 is characterized in that except that flexible pipe (6) also comprising bend pipe (3) in the water transport pipeline when last pump (1) when horizontal; Transmission shaft still comprises several Hooks coupling universal couplings (2) except that flexible axle (4).

4, semi-submersible type Pump for well according to claim 1 is characterized in that the manufactured materials of pump (7) has ferrous metal or non-ferrous metals such as aluminium or copper down, or engineering plastics such as stainless steel or nylon, polyoxymethylene are made.

5, the flexible axle made of steel wire according to claim 2 is characterized in that there are one deck nylon or corrosion-inhibiting coatings such as PVC plastics or rubber in its surface when flexible axle (4) is made by the black carbon steel wire.