CN2048124U - Single-abserb submersible pumps with automatic balance - Google Patents

Abstract

The utility model relates to an immersible pump pumping water upwards from mines and other lowland areas. Another flow quantity is comprised through redesigning some key components, and range of application is expanded. Concretely the utility model is the single-absorb submersible pumps with automatic balance, comprising an upper pump, a lower pump, a single-absorbing discharging section, an upper body discharging body, an upper thrust bearing, a lower thrust bearing, a water effluent housing, a rotor, a stator, etc., characterized in that the single-absorbing discharge section, the upper discharge body and the water housing are respectively provided with a high pressure chamber and a low pressure cavity which are parted with each other and are staggerly distributed. Raw material is saved in the design. The lift head is 50 meter to 1000 meter, and the flowing quantity is 100 cubic meter to 1450 cubic meter per hour.

Description

Single-abserb submersible pumps with automatic balance

The utility model relates to a kind of submersible pump of the draining of can upwards drawing water from low-lying areas such as mines, specifically single suction formula autobalance submersible pump.

Usually the submersible pump that the draining of upwards drawing water from mine, deep well or low-lying area is used all is the double suction symmetric type, the submersible pump that for example famous Germany KSB company produces, upper and lower two water intakes are arranged and go up pump and following pump, after boosting to water pressurization, multi-stage impeller converges at the middle part of pump, enter lifting pipe through the outer runner of last pump by total water outlet again, the water in deep is discharged ground the most at last.The last pump of this submersible pump and following pump have hydraulic part such as impeller and stator etc. separately, and its upper and lower two water intakes have two kinds of impellers respectively, promptly go up impeller and following impeller, can only form a kind of fixing flow, and Applicable scope is little.

The purpose of this utility model provides a kind of single suction formula autobalance submersible pump, is intended to can form another kind of flow by redesigning some critical component, so that enlarge Applicable scope, and reduced volume, weight reduction descends cost of production significantly.

The purpose of this utility model is achieved in that as above pump of the main body of utilizing former double-sucking type autobalance submersible pump and partial component, following pump, last impeller, following impeller, last stage casing, the balance impeller, following suction body, last thrust bearing, following thrust bearing, last stator, following stator, rotor, stator and base etc., but redesigned the single suction Spit Section 22 among critical component such as Fig. 1, on spue body 19 with go out water hull 18, make it to have hyperbaric chamber and low-pressure cavity, spaced-apart, be interspersed, the low pressure runner of single suction Spit Section 22 connects the outer runner of the part that goes up stage casing 20, lead to the body 19 that spues, on spue that the hyperbaric chamber of body 19 catches up with that stage casing 20 is connected with the hyperbaric chamber of single suction Spit Section 22 and with go out water hull and communicate.Water is from following pump water inlet mouth (the unique water intake the utility model during use, in Fig. 1 11 and 12 between) suck, warp is impeller 26 multistage boosting down, enter the low-pressure cavity runner of single suction Spit Section 22, the outer runner of the part in stage casing 20 on the process, enter the low-pressure cavity of the body 19 that spues, the water of this moment has had the pressure that equals following pumping head, again through last impeller 21 multistage boosting, enter the hyperbaric chamber runner of single suction Spit Section 22, the outer runner of the another part in stage casing 20 on the process enters the hyperbaric chamber of the body 19 that spues, so high pressure water passes out water hull 18 and flows into lifting pipe by the total water outlet in top, the water in deep is discharged ground the most at last.

The impeller of pump and following pump can not wait on the utility model, when lift requires the impeller number to be odd number, can be designed to down pump and many one-level than the impeller of last pump, goes up the pressure difference of pump to following pump to reduce, thus the minimizing volumetric loss; When lift needs the impeller number to be even number, then can be designed to pump and equate with the impeller number of following pump.Through well-designed, it is 50-1000 rice that effect of the present utility model can reach lift, flow be the 100-1450 cubic meter/hour.

Compared with the prior art, the utility model has following advantage: (1) single suction formula autobalance submersible pump is littler, in light weight than the volume of double-sucking type autobalance submersible pump, can save a large amount of raw material, and cost of production is descended significantly; (2) utilize the main parts in addition of former double-sucking type autobalance submersible pump, only the removable parts critical component can be formed the submersible pump of new flow, can increase new varieties, enlarges Applicable scope, can save a large amount of wooden models again, makes producer's saving of work and time; (3) single suction formula autobalance submersible pump has saved Balance disc and balancing drum, can make designs simplification; (4) installation of single suction formula autobalance submersible pump, it is all convenient than double-sucking type autobalance submersible pump to use with maintenance.

Fig. 1: single suction formula autobalance submersible pump structural representation

Fig. 2: on spue body 19 with go out water hull 18 structural drawing

The B-B of Fig. 3: Fig. 2 is to sectional view

Fig. 4: single suction Spit Section 22, last stage casing 20, last stator 4 and last impeller 21 structural drawing

The A-A of Fig. 5: Fig. 4 is to sectional view

1---go up the stretching screw nut; 2---bearing; 3---the chromium plating axle sleeve; 4---go up stator; 5---adjust ring; 6---go up pump shaft; 7---connecting sleeve; 8---strain bolt and nut down; 9---following pump shaft; 10---following stator; 11---the chromium plating axle sleeve; 12---pump machine coupling band; 13---get rid of the sand circle; 14---stator; 15---go up thrust bearing; 16---the lower leading axle bearing; 17---regulate capsule; 18---go out water hull; 19---on the body that spues; 20---go up the stage casing; 21---go up impeller; 22---the single suction Spit Section; 23---intermediate connector; 24---the balance impeller; 25---following stage casing; 26---following impeller; 27---bearing; 28---following suction body; 29---pump machine connecting body; 30---the upper leading axle bearing; 31---top guide bearing; 32---rotor; 33---lower guide bearing; 34---thrust garden dish; 35---following thrust bearing; 36---base; 37---hyperbaric chamber, 38---low-pressure cavity.

Embodiment:

Make the body 19 that spues, single suction Spit Section 22 with spheroidal graphite cast iron and go out water hull 18.On spue body 19 and single suction Spit Section 22 have five hyperbaric chambers and five the low-pressure cavity (see figure 3)s that are interspersed, going out water hull 18 has hyperbaric chamber 37 and low-pressure cavity 38.With the major part of original double-sucking type autobalance submersible pump as above stage casing 20, go up impeller 21, go up stator 4, go up pump shaft 6, stage casing 25, impeller 26, stator 10, pump shaft 9, intermediate connector 23 and following suction body 28 etc. down down down down, assemble up by Fig. 1, during assembling with pull bar and nut single suction Spit Section 22, go up stage casing 20, on spue body 19 and go out water hull 18 and combine as a whole, last pump shaft 6 and last impeller 21 have installed in the stage casing and have been bearing on the bearing 2; Following pump then all is the part of original double-sucking type autobalance submersible pump, assemble with the method identical with last pump, last pump and following pump are coupled to integral body to shell by intermediate connector 23, last pump rotor and following pump shaft connect valve jacket by connecting sleeve 7(and guarantee transmitting torque on the outer surfaces of connecting sleeve 7) combine as a whole, the axle head of following pump shaft 9 goes out axle head by pump machine coupling band 12 and submersible motor and combines as a whole.When the stator 14 to submersible motor sent electricity, rotor 32 began to rotate, and pump rotor and rotor rotate synchronously.By the water of down Pump Suction Nozzle inspiration after time impeller 26 boosts step by step, cross the low-pressure cavity (see figure 4) that intermediate connector 23 inner chambers enter the single suction Spit Section 22 that newly manufactures and designs, after last stage casing 20 outer five runners (being low-pressure cavity) herein, enter the low-pressure cavity (see figure 2) of the body 19 that spues again, this moment, the pressure of water equaled pump impeller water outlet pressure down.Then, last impeller 21 by last pump boosts step by step, the hyperbaric chamber 37(that the water that impeller is discharged on the final stage enters single suction Spit Section 22 sees Fig. 4), cross stage casing 20 outer field five runners (being hyperbaric chamber) in addition herein, the hyperbaric chamber 37 of the body 19 that spues on going into and the extremely total water outlet (seeing Fig. 1,2) of the hyperbaric chamber that goes out water hull 18.Then, by the lifting pipe that joins with the total water outlet flange of pump water is drained into ground.

725 cubes m/hs of this single-abserb submersible pumps with automatic balance flows have been brought into play good result in the emergency drainage of colliery, mineral bureau LongXi, Los Angeles, Jiangxi Province. In addition, 275 cubes m/hs of the flows of design, lift 800m, under the Fengfeng Mining Bureau coal mine of Handan, Hebei province row under, good results. Also have 725 cubes m/hs of design discharges, lift 159m uses normal in Zhangdian District Cui Jun colliery, Zibo City, Shandong Province.

Claims (1)

1, a kind of single suction formula autobalance submersible pump, by last pump, following pump, last impeller, following impeller, last stator, following stator, on the body that spues, the single suction Spit Section, last stage casing, the balance impeller, following suction body, last thrust bearing, following thrust bearing, rotor, composition such as stator and base, on having, following two water intakes, with multi-stage impeller water pressurization is boosted, body 19 is characterized in that spuing, single suction Spit Section 22 with go out water hull 18 and have hyperbaric chamber and low-pressure cavity, spaced-apart, be interspersed, the low pressure runner of single suction Spit Section 22 connects the outer runner of the part that goes up stage casing 20, lead to the body 19 that spues, on spue that the hyperbaric chamber of body 19 catches up with that stage casing 20 is connected with the hyperbaric chamber of single suction Spit Section 22 and with go out water hull 18 and communicate.

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