CN211116665U

CN211116665U - Light submersible mine drainage pump

Info

Publication number: CN211116665U
Application number: CN201922130485.7U
Authority: CN
Inventors: 李汉光; 徐万平
Original assignee: DALIAN HONGZE PUMPS Ltd
Current assignee: DALIAN HONGZE PUMPS Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-28
Anticipated expiration: 2029-12-03

Abstract

The utility model relates to a water pump technical field provides a light-duty dive mine drain pump, include: the pump comprises a pump shaft, an impeller, a guide vane, a pump cover and a pump body; the pump shaft is arranged in the pump body, and a pump cover is arranged at the end part of the pump body; the front end of the pump shaft is provided with an impeller, and the impeller is arranged on the inner side of the guide vane: the guide vanes are fixedly arranged on the pump cover; the pump cover is combined with the pump body; a plurality of positive guide vanes are circumferentially distributed on the outer side of the front surface of each guide vane, and clockwise water flow passages are formed among the positive guide vanes; a plurality of return guide vanes are distributed on the back surfaces of the guide vanes, and anticlockwise water flow passages are formed among the return guide vanes. The utility model provides the high emergent equipment level of speedily carrying out rescue work guarantees safety in production, has great meaning to reducing loss of property under the unexpected condition.

Description

Light submersible mine drainage pump

Technical Field

The utility model relates to a water pump technical field especially relates to a light-duty dive mine drain pump.

Background

The mine emergency drainage pump mainly comprises a centrifugal pump and a submersible pump. At present, mine emergency drainage pumps used at home and abroad are all products used conventionally, are not specially designed and produced for emergency drainage, have a series of problems of large size, heavy weight, complex maintenance and repair, incapability of moving quickly and the like, and concentration change of a drainage medium containing silt, particles, impurities and the like is uncertain, so that the emergency drainage pumps operate in an unstable state, faults occur frequently, and smooth rescue operation is influenced.

Although the technology and equipment of the drainage pump for the emergency rescue of the mine in China have been developed greatly, the light submersible drainage pump for the mine, which has the advantages of high rotating speed, small volume, light weight and high reliability, is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses mainly solve prior art mine emergency drainage pump bulky, weight are heavy, maintain the maintenance complicacy, technical problem such as quick travel can not, from the mine unexpected actual need of permeating water, watering the emergent emergency rescue of accidents such as, provide a light-duty dive mine drainage pump, improve the emergent level of speedily carrying out rescue work and equip, guarantee safety in production, have great meaning to reducing loss of property under the unexpected circumstances.

The utility model provides a light-duty dive mine drain pump, include: the pump comprises a pump shaft (5), an impeller (1), a guide vane (3), a pump cover (2) and a pump body (4);

the pump shaft (5) is arranged in the pump body (4), and the end part of the pump body (4) is provided with the pump cover (2);

impeller (1) is equipped with to pump shaft (5) front end, impeller (1) dress is inboard at stator (3): the guide vane (3) is fixedly arranged on the pump cover (2); the pump cover (2) is combined with the pump body (4);

a plurality of positive guide vanes (301) are circumferentially distributed on the outer side of the front surface of the guide vane (3), and clockwise water flow channels (303) are formed among the positive guide vanes (301); a plurality of return guide vanes (302) are distributed on the back surfaces of the guide vanes (3), and anticlockwise water flow channels (304) are formed among the return guide vanes (302).

Preferably, the front guide vane (301) and the back guide vane (302) are respectively in the shape of a circular arc with two narrow ends and a wide middle.

Preferably, the plurality of positive vanes (301) are evenly distributed in the circumferential direction.

Preferably, the plurality of return vanes (302) are evenly distributed in the circumferential direction.

Preferably, the radius of curvature of the positive guide vane (301) is greater than the radius of curvature of the negative guide vane (302).

Preferably, the width of the middle position of the front guide vane (301) is smaller than the width of the middle position of the back guide vane (302).

The utility model provides a pair of light-duty dive mine drain pump compares with prior art and has following advantage:

1. the utility model discloses a light-duty dive mine drain pump can shorten driving shaft length with the coaxial work of motor, has improved transmission shaft rigidity, and the drive shaft is short, and the rigidity is good.

2. The design is designed according to the two-phase (solid and liquid) flow theory. The guide vane in the pump adopts the design of multithread way, and balanced fluid radial force alleviates radial force, improves life. The single-stage pump head is improved through the design of large impeller diameter and high rotating speed; by optimizing the area of the inlet of the impeller, the cavitation performance is improved, and the lift and the cavitation performance of the single-stage pump are improved.

3. Compared with the existing wet motor-driven pump with the same power, the volume and the weight are reduced under the same power, and the wet motor-driven pump is more suitable for being quickly moved and installed under a mine. This application adopts the pump inside water flow to the axial balance, with the coaxial design of motor, mainly solves the problem that emergency pump rotational speed is high, small, light in weight, reliability are high.

4. The utility model has simple structure and convenient maintenance, and is a reliable, high-efficiency and submersible emergency drainage device; the emergency rescue equipment level can be improved, the safety production is ensured, and the emergency rescue equipment has great significance for reducing property loss under the accident condition. After the emergency rescue system is popularized, the emergency rescue requirements can be well met, the emergency rescue system can be applied to other industries, and can replace imported products, so that huge social benefits and economic benefits are brought.

Drawings

FIG. 1 is a partial cross-sectional view of a light-duty submersible mine drainage pump provided by the present invention;

fig. 2 is a partial cross-sectional view of a guide vane provided by the present invention.

Reference numerals: 1. an impeller; 2. a pump cover; 3. a guide vane; 4. a pump body; 5. a pump shaft; 301. a positive guide vane; 302. a return guide vane; 303. a clockwise water flow channel; 304. a counterclockwise water flow path.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.

Fig. 1 is a partial cross-sectional view of a light submersible mine drainage pump provided by the present invention. As shown in FIG. 1, the embodiment of the utility model provides a light-duty dive mine drain pump, include: pump shaft 5, impeller 1, stator 3, pump cover 2 and pump body 4.

The pump shaft 5 is arranged in the pump body 4, and the end part of the pump body 4 is provided with the pump cover 2. The front end of the pump shaft 5 is provided with an impeller 1, and the impeller 1 is arranged on the inner side of the guide vane 3: the guide vane 3 is fixedly arranged on the pump cover 2; the pump cover 2 is combined with the pump body 4. The embodiment adopts the design of large impeller diameter and high rotational speed, changes the blade twist angle of the impeller 1, thereby optimizing the impeller 1 structure and improving the cavitation performance and the single-stage pump lift. The pump shaft 5 of the embodiment can work coaxially with the motor, and the length of the pump shaft 5 is shortened by more than 50% compared with other multi-stage pumps. The length of the driving shaft is shortened, and the rigidity of the transmission shaft is improved.

Fig. 2 is a partial cross-sectional view of a guide vane provided by the present invention. As shown in fig. 2, a plurality of positive guide vanes 301 are circumferentially distributed on the outer side of the front surface of the guide vane 3, and a clockwise water flow passage 303 (in the direction shown in fig. 2) is formed between the plurality of positive guide vanes 301; a plurality of guide vanes 302 (arc shape shown by dotted line in fig. 2) are distributed on the back surface of the guide vane 3, and a counterclockwise water flow passage 304 is formed between the plurality of guide vanes 302. Wherein, a plurality of positive stator 301 are at circumferencial direction evenly distributed, and positive stator 301 distributes at the outer edge of stator 3, and positive stator 301 has certain distance with stator 3 shaft hole between. The plurality of back vanes 302 are uniformly distributed in the circumferential direction, and the back vanes 302 extend radially outward from the vane 3 shaft hole. The front guide vane 301 and the back guide vane 302 are respectively in the shape of a circular arc with two narrow ends and a wide middle. The radius of curvature of the front guide vanes 301 is greater than the radius of curvature of the return guide vanes 302. The width of the middle position of the positive guide vane 301 is smaller than that of the middle position of the back guide vane 302, that is, the width of the positive guide vane 301 is smaller than that of the back guide vane 302. The water flow inlet of the guide vane 3 corresponds to the water flow outlet of the impeller 1, and the liquid thrown out by the impeller 1 can be collected. The clockwise water flow channel 303 and the counterclockwise water flow channel 304 of this embodiment are respectively and uniformly distributed, balance radial force, and can convert partial liquid velocity energy into pressure energy, so that the flow velocity of liquid is reduced.

The utility model provides a light-duty dive mine drain pump when assembling, installs pump cover 2, installs multithread way stator 3 on pump cover 2, and stator 3 water flow entry corresponds with impeller 1 water flow exit, leads into 4 delivery ports of the pump body with the rivers; the guide vane 3 is theoretically calculated and tested to ensure the balance of the radial force generated by the fluid, reduce the acting force of the radial force on the pump shaft and related parts and reduce vibration and noise. The service life of the pump is prolonged by the design of the positive and negative guide vanes which are uniformly distributed in the flow channel; the multi-runner guide vane is adopted, so that the efficiency is improved, the volume and the weight are reduced under the same power, and the multi-runner guide vane is more suitable for quick movement and installation under a mine; the pump body has simple structure, convenient installation and easy maintenance.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, without substantially departing from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A light-duty submersible mine drainage pump, comprising: the pump comprises a pump shaft (5), an impeller (1), a guide vane (3), a pump cover (2) and a pump body (4);

2. The light-duty submersible mine drain pump according to claim 1, characterized in that the positive guide vanes (301) and the negative guide vanes (302) are each in the shape of a circular arc with two narrow ends and a wide middle.

3. A light submersible mine drainage pump according to claim 1 or 2, characterized in that a plurality of positive vanes (301) are evenly distributed in circumferential direction.

4. A light-duty submersible mine drain pump according to claim 1 or 2, characterized in that a plurality of back guide vanes (302) are evenly distributed in circumferential direction.

5. The light submersible mine drain pump according to claim 2, characterized in that the radius of curvature of the positive vanes (301) is larger than the radius of curvature of the return vanes (302).

6. A light submersible mine drain pump according to claim 2 or 5, characterized in that the width of the positive guide vanes (301) in the middle is smaller than the width of the back guide vanes (302) in the middle.