Unlock instant, AI-driven research and patent intelligence for your innovation.

Centrifugal pump device with self-suction water drawing function and self-suction water drawing method

A technology for centrifugal pumps and air extraction devices, which is applied in the direction of pumps, pump control, and driving pumps, and can solve the problems of short service life and unsuitable long-term use of diaphragm pumps

Pending Publication Date: 2020-04-03
SHENZHEN HEYI PRECISION PUMP TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The diaphragm pump can be used as a water pump or an air pump, so as a water pump, it has the function of self-priming and can be placed outside the water when in use, but the disadvantage is that the diaphragm is made of silicone rubber, which is very easy to reciprocate at high speed Abrasion occurs during movement and stops working. Therefore, the life of the diaphragm pump is short and it is not suitable for long-term use.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Centrifugal pump device with self-suction water drawing function and self-suction water drawing method
  • Centrifugal pump device with self-suction water drawing function and self-suction water drawing method
  • Centrifugal pump device with self-suction water drawing function and self-suction water drawing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1-3 As shown, a centrifugal pump device with self-priming water pumping function includes an air pumping device 1, a centrifugal pump 2 and an airtight communication chamber 31. The airtight communication chamber 31 has a drain, and a first unit is arranged in the drain. To the check valve 4, the first one-way check valve 4 only allows the fluid to be discharged from the airtight communication cavity 31, and the air intake port of the suction device 1 and the water outlet port of the centrifugal pump 2 They communicate with each other through the airtight communication chamber 31.

[0028] The centrifugal pump device is additionally equipped with an air extraction device 1, through which the gas in the airtight communication chamber 31 is extracted, so that the pump chamber in the centrifugal pump 2 forms a negative pressure, and then the liquid 101 enters the pump cavity of the centrifugal pump 2 from the water inlet of the centrifugal pump 2 under the...

Embodiment 2

[0046] A self-priming water pumping method of a centrifugal pump is not limited to be applied in the centrifugal pump device described in Embodiment 1, such as Figure 4 shown, including the following steps:

[0047] Step 1: extract the gas in the pump chamber of the centrifugal pump 2, so that a negative pressure is formed in the pump chamber of the centrifugal pump 2, and then the liquid 101 enters from the water inlet of the centrifugal pump 2 to the In the pump cavity of the centrifugal pump 2.

[0048] In this step 1, the gas in the pump chamber of the centrifugal pump 2 is sucked through an air pumping device 1 , and the starting time of the centrifugal pump 2 can be determined according to specific requirements.

[0049] For example: the centrifugal pump 2 can be started synchronously with the air extraction device 1. In this case, the centrifugal pump 2 is in an idling state when it is just started, and the liquid 101 is filled with the liquid 101 under the action of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a centrifugal pump device with a self-suction water drawing function. The centrifugal pump device comprises a gas drawing device, a centrifugal pump and a gastight communicating cavity. The gastight communicating cavity comprises a water drainage opening. A first one-way check valve is arranged in the water drainage opening. The first one-way check valve only allows fluid to be discharged from the gastight communicating cavity. A gas inlet of the gas drawing device and a water outlet of the centrifugal pump communicate through the gastight communicating cavity. By meansof the centrifugal pump device, the self-suction water drawing function of the centrifugal pump is achieved, the centrifugal pump device has the characteristics of being high in work efficiency, longin service life and the like, the centrifugal pump is not limited by the use environment and does not need to be placed in water, and use and maintenance are more convenient. The invention further discloses a self-suction water drawing method of the centrifugal pump.

Description

technical field [0001] The invention relates to the field of water pumps, in particular to a centrifugal pump device with a self-priming water pumping function and a self-priming water pumping method. Background technique [0002] In the prior art, there are roughly two types of water pumps that are widely used, one is a centrifugal pump, and the other is a diaphragm pump. [0003] Centrifugal pumps, especially miniature centrifugal pumps, work by relying on a high-speed rotating motor to drive the impeller (blade) to rotate at high speed, so that the liquid generates inertial centrifugal force under high-speed rotation. Under the action of centrifugal force, one side of the impeller continuously sucks liquid. On the other side, the liquid is continuously discharged to form a continuous pumping operation. Since the centrifugal pump cannot pump water in space, its pump cavity and inlet pipe must be filled with liquid medium before use to prevent cavitation. Therefore, the ce...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04D9/00F04D15/00
CPCF04D9/006F04D15/00
Inventor 胡军葛少龙徐天宇李春生
Owner SHENZHEN HEYI PRECISION PUMP TECH CO LTD