Centrifugal pump self-absorbing device used for easily-crystallized medium

The technology of self-priming device and centrifugal pump is applied to the parts of pumping device for elastic fluid, pump of special fluid, pump and other directions, which can solve the problems of easy damage of electronic control element, complicated structure and difficulty in filling tank, etc. Achieve the effect of preventing premature damage, simple control method and simple structure

Pending Publication Date: 2018-12-07
辽宁格瑞特泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the pump is stopped, the sulfur in the pipeline and pump will condense in the pump and pipeline due to the temperature drop, making it difficult to start the pump again and damage the mechanical seal. Because of its special physical characteristics, the transportation of liquid sulfur has always been a problem
[0003] At present, the commonly used delivery pumps are long-axis submerged pumps and electronically controlled diaphragm self-priming pumps, but the long-axis submerged pumps are inconvenient to maintain, and the sliding bearings are easy to corrode and wear, and the failure rate is high
The electrical control part of the electronically cont

Method used

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  • Centrifugal pump self-absorbing device used for easily-crystallized medium
  • Centrifugal pump self-absorbing device used for easily-crystallized medium
  • Centrifugal pump self-absorbing device used for easily-crystallized medium

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Embodiment 1

[0038] In order to solve the problems existing in the existing technology, such as Figure 1 to Figure 2 As shown, the present invention provides a centrifugal pump self-suction device 29 for easily crystallized medium, which includes a surge tank 10 , an ejector 5 and a jet tank 19 . This embodiment is suitable for working conditions where the whole device needs to be started frequently during operation.

[0039] The surge tank 10 is used to store the gas source and heat the components installed inside it. The top of the surge tank 10 is provided with a surge tank inlet pipe 3, and the bottom of the surge tank 10 is provided with a surge tank steam outlet pipe 31. The tank steam outlet pipe 31 is provided with a surge tank steam outlet valve 14, and the bottom of the surge tank 10 is provided with a surge tank drain pipe 20, and the surge tank drain pipe 20 is provided with a surge tank drain pipe valve 21, and The tank inlet pipe 3 communicates with the steam line inlet pip...

Embodiment 2

[0055] In order to solve the problems existing in the existing technology, such as Figure 3 to Figure 4 As shown, the present invention provides a centrifugal pump self-priming device 29 for crystallization-prone media, and the centrifugal pump self-priming device 29 for crystallization-prone media includes a surge tank 10 and an ejector 5 . This embodiment is applicable to the working condition that the centrifugal pump adopts the backflow mode when there is no need to stop the pump or other equipment is not working except for overhaul, and still maintains low-level operation.

[0056] The surge tank 10 is used to store the gas source and heat the components installed inside it. The top of the surge tank 10 is provided with a surge tank inlet pipe 3, and the bottom of the surge tank 10 is provided with a surge tank steam outlet pipe 31. The tank steam outlet pipe 31 is provided with a surge tank steam outlet valve 14, and the bottom of the surge tank 10 is provided with a su...

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Abstract

The invention relates to a centrifugal pump self-absorbing device used for an easily-crystallized medium, and belongs to the technical field of centrifugal pumps. The centrifugal pump self-absorbing device used for the easily-crystallized medium comprises a pressure stabilization cylinder and a jetting device; a pressure stabilization cylinder air inlet pipe is arranged on the top of the pressurestabilization cylinder, and a pressure stabilization cylinder steam outlet pipe is arranged on the lower part of the pressure stabilization cylinder; a pressure stabilization condensate emission pipeis arranged on the bottom of the pressure stabilization cylinder; the pressure stabilization cylinder air inlet pipe communicates with a steam pipeline inlet pipe; the pressure stabilization cylindersteam outlet pipe communicates with a steam pipeline outlet pipe; and the jetting device is arranged in the pressure stabilization cylinder and comprises a jetting device nozzle, a jetting device airinlet pipe, a jetting device absorbing-in pipe and a jetting device discharging pipe. The centrifugal pump self-absorbing device used for the easily-crystallized medium is applicable to high-temperature, toxic, harmful, high-adhesive, easily-crystallized high-corrosive media such as sulfur in the oil chemistry industry, and can be combined with a centrifugal pump, so that an upwards-absorbing function of the centrifugal pump is realized.

Description

technical field [0001] The invention relates to the technical field of centrifugal pumps, in particular to a centrifugal pump self-priming device for easily crystallized media. Background technique [0002] Sulfur is a poisonous and harmful chemical raw material. It is solid at normal temperature. When the temperature of sulfur reaches the melting point, sulfur will melt into liquid sulfur with flow properties. The viscosity of liquid sulfur changes with the temperature. Generally, when it is first melted, the viscosity decreases with the increase of temperature. When the temperature exceeds 159°C, the viscosity increases sharply with the increase of temperature. When the temperature continues to increase to 190°C, the viscosity reaches an extreme. Large value, when the temperature exceeds 190°C, the viscosity returns to the original characteristics, and the viscosity is the smallest at 130-160°C, which is beneficial to the transportation of liquid sulfur. Once the pump is ...

Claims

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Application Information

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IPC IPC(8): F04D9/02F04D29/00F04D7/04F04D7/06
CPCF04D7/04F04D7/06F04D9/02F04D29/007
Inventor 崔正军赵锦文
Owner 辽宁格瑞特泵业有限公司
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