D-type multistage pump for water drainage of urban road

A technology of multi-stage pumps and roads, which is applied to parts, pumps, and pump devices of elastic fluid pumping devices. Low cost, extended service life, good sealing and protection

Inactive Publication Date: 2016-12-07
成都元始信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the deficiencies of the prior art and provides a D-type multi-stage pump for urban road drainage, which solves the problems that the motor shaft and pump body of the multi-stage pump are easily damaged and easily leaked

Method used

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  • D-type multistage pump for water drainage of urban road
  • D-type multistage pump for water drainage of urban road
  • D-type multistage pump for water drainage of urban road

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as Figure 1-Figure 7 The shown D-type multistage pump for urban road drainage includes a pump body 7 and a motor 1, the pump body 7 includes a water inlet port 5 and a water outlet port 10, and a combined pumping impeller 9 is arranged inside the pump body 7, so The motor 1 is vertically arranged and the rotating shaft 14 of the motor 1 passes through the upper end of the pump body 7 and communicates with the combined pumping impeller 9. The upper end of the pump body 7 is located outside the rotating shaft 14 and is fitted with an anti-corrosion and wear-resistant ring 8. The pump The upper end of the body 7 is also provided with a sealing cover 3 for sealing and an end cover 2 for fixed connection.

[0024] The pump body 7 of this embodiment is arranged vertically through the base 6 at the bottom, the combined pumping impeller 9 rotates under the drive of the rotating shaft 14, pumps water through the water inlet port 5, and discharges water through the water ou...

Embodiment 2

[0026] This embodiment optimizes the following structure on the basis of Embodiment 1: the upper end of the pump body 7 is provided with a flange 12, and the flange 12 is provided with a plurality of threaded holes 13, and the pump body 7 is located on the flange The inner side of 12 is also provided with a sealing cover installation platform 15, the sealing cover installation platform 15 is provided with a fixing hole 16, and the middle part of the sealing cover installation platform 15 is provided with a through hole cooperating with the rotating shaft 14, and the anti-corrosion and wear-resistant ring 8 can be The rotation is arranged in the through hole, the opening of the through hole is also provided with a sealing groove 11, the sealing cover installation platform 15 and the sealing cover 3 are fixed and sealed by bolts, and the flange plate 12 and the end cover 2 are fixed by fixing bolts Press tight.

[0027] In this embodiment, a sealing cover installation platform 1...

Embodiment 3

[0029] This embodiment is optimized as follows on the basis of Embodiment 1 or Embodiment 2: the inside of the anti-corrosion and wear-resistant ring 8 is provided with a keyway 81 and a gasket groove 82, and the rotating shaft 14 is provided with a The key 4, the rotating shaft 14 and the anti-corrosion and wear-resistant ring 8 are connected by a key to realize cooperative rotation.

[0030] In this embodiment, the rotating shaft 14 and the anti-corrosion and wear-resistant ring 8 are connected by a key to realize cooperative rotation, thereby ensuring that the anti-corrosion and wear-resistant ring 8 can rotate synchronously with the rotating shaft 14, avoiding leakage caused by the size change of the two, and at the same time reducing the number of rotating shafts. 14 and the pump body 7 wear each other, and the sealing gasket groove 82 can be added to the sealing ring, and is compressed by the sealing cover 3 to realize sealing.

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Abstract

The invention discloses a D-type multistage pump for water drainage of an urban road. The D-type multistage pump comprises a pump body and a motor, wherein the pump body comprises a water inlet port and a water outlet port; combined water pumping impellers are arranged in the pump body; the motor is vertically arranged, and a rotary shaft of the motor penetrates through the upper end of the pump body and then communicates with the combined water pumping impellers; an anti-corrosive wear-resistant ring is arranged at the upper end of the pump body and located at the outer side of the rotary shaft in a sleeving manner; and a sealing cover for sealing and an end cover for fixed connection are further arranged at the upper end of the pump body. According to the D-type multistage pump disclosed by the invention, water pumping efficiency and a lift can be increased through the arrangement of the combined water pumping impellers, and the water pumping impellers can be mutually combined to meet a diversified use need; meanwhile, wear of the rotary shaft and the pump body is counteracted through the additional arrangement of the anti-corrosive wear-resistant ring, thus the service lives of the rotary shaft and the pump body are prolonged; and moreover, the anti-corrosive wear-resistant ring is convenient to replace and low in cost, and a sealing pad is arranged on the anti-corrosive wear-resistant ring and a sealing groove is arranged in the opening of a through hole, and sealing is carried out through the sealing cover, thus good sealing performance and protectability are achieved.

Description

technical field [0001] The invention relates to a multistage pump, which belongs to the field of fluid machinery, and more specifically relates to a D-type multistage pump for urban road drainage. Background technique [0002] Under extreme weather, the short-term rainfall can reach more than 100 mm, causing serious urban waterlogging. Waterlogging drainage has always been a problem that plagues municipal traffic. The motor of the existing vertical multi-stage pump is generally placed above the pump body, and the pump body is driven by the motor shaft. The impeller rotates to pump water. When the rotating shaft rotates, the upper part of the shaft in contact with the pump body is not only easy to wear, but also easy to leak, which brings inconvenience to the use, and requires regular maintenance and replacement. Once the long-term drainage causes the motor shaft or the pump After the body is worn out, only the motor or the pump body needs to be replaced, which is costly and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D1/06F04D13/06F04D29/42
CPCF04D1/066F04D13/0606F04D29/426
Inventor 姚海林范娟秀任无
Owner 成都元始信息科技有限公司
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