Introduction to the working principle of single multi-stage centrifugal oil pump

The main overcurrent components of a single multistage centrifugal oil pump are a suction chamber, an impeller and a pressurized water chamber. The water absorption chamber is located in front of the water inlet of the impeller to guide the liquid to the impeller; the pressure water chamber mainly has three forms: a spiral pressure water chamber (volute type), a guide vane and a space guide vane; the impeller is the most pump The important working element is the heart of the flow-through component, which consists of a cover plate and an intermediate blade.
The impeller is mounted in the pump casing and fastened to the pump shaft, and the pump shaft is directly driven by the motor. A liquid suction is connected to the suction pipe in the center of the pump casing. The liquid enters the pump through the bottom valve 6 and the suction pipe. The liquid discharge port on the pump casing is connected to the discharge pipe. Before the start of the centrifugal pump, the pump casing is filled with the liquid to be transported; after starting, after the start, the impeller is driven by the shaft to rotate at a high speed, and the liquid between the blades must also rotate. Under the action of centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and obtains energy, leaving the outer edge of the impeller at high speed into the volute casing.
Before the single multi-stage centrifugal oil pump works, the pump is filled with liquid, then the centrifugal pump is started, the impeller rotates rapidly, the blades of the impeller drive the liquid to rotate, and the liquid flows by inertia to the outer edge of the impeller, and the impeller sucks in from the suction chamber. Liquid, in this process, the liquid in the impeller flows around the blade, and the liquid acts a lift on the blade during the flow around the flow. In turn, the blade acts on the liquid with a force equal to the lift force and the opposite direction. The liquid works to make the liquid get energy and flow out of the impeller, at which time the kinetic energy and pressure energy of the liquid increase.
In the volute, the liquid decelerates due to the gradual expansion of the flow path, and part of the kinetic energy is converted into static pressure energy, and finally flows into the discharge pipe at a relatively high pressure and is sent to a place where it is needed. When the liquid flows from the center of the impeller to the outer edge, a certain vacuum is formed at the center of the impeller. Since the pressure above the liquid level of the tank is greater than the pressure at the inlet of the pump, the liquid is continuously pressed into the impeller. It can be seen that as long as the impeller rotates continuously, the liquid is continuously sucked in and discharged.
When there is air in the pump casing, the centrifugal force is generated because the density of the air is much smaller than the density of the liquid. Therefore, the pressure difference between the liquid level above the storage tank and the suction port of the pump is not enough to press the liquid in the storage tank into the pump, that is, the centrifugal pump has no self-priming ability, so that the centrifugal pump cannot transport the liquid, and this phenomenon is called “gas”. Binding phenomenon." In order to fill the pump with liquid, a bottom valve with a filter is usually installed at the bottom of the suction pipe. The bottom valve is a reverse valve. The function of the filter is to prevent solid substances from entering the pump and damage the impeller or hinder the normal operation of the pump.
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Thermostatic shower mixers have  a build-in thermostat which controle the temperature of the water, this means that the water temperature is unaffected by other factors which may effect water supply to the shower, such as a washing machine or someone flushing a toilet, the HIDEEP thermostatic valve features a built-in temperature stop to prevent accidental scalding. 

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The latest generation of thermostatic shower mixers are equipped with an additional safety device. Thanks to the new technology, which keeps the mixer's metallic surface separate from the flow of the hot water, the mixer will never reach a scalding temperature externally, even when using high temperature. 

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HIDEEP Product line
Kitchen Faucet	Basin Faucet	Thermostatic Shower Faucet		Wall-mounted Shower Faucet	Floor Drain	Bathroom Accessories
HIDEEP Product Information
Product description			Shower faucet
Brand name			HIDEEP
Material			Brass main body and zinc alloy handle
Material analysis			Cu≥59%
Air pressure testing			0.6 Mpa
The thickness of chrome plating			Nickel>8um Chrome>0.2um
Salt spray test			24 hours
Water flow			Bath/Shower Mixer≥18L/min,
Cartridge life time			300,000 times open and close
Quality guarantee			5 Years quality guarantee
Certification			ISO9001, CE
OEM and ODM			Acceptable
Installation mode			Wall-mounted
Function			Hot/cold water mixer

In winter, no matter whether adults or children are very torment to wash up and even don't want to touch water at all. However, we still need to wash hands and faces for cleanliness. Therefore, thermostatic faucet has become the great gospel of water use in winter. The thermostatic faucet has a built-in thermostatic cartridge which can automatically adjust the cold and hot water. So that the water temperature can be maintained at the set parameters and water flow can meet the needs of different users. 

Thermostatic Shower Faucet

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Kaiping HIDEEP Sanitary Ware Co., Ltd. , http://www.hideepglobal.com