Shandong Hairui Zhonglian Pump Industry Co. , ltd. The blowdown pump that is a major produces manufacturer. When type selecting of client blowdown pump, manufacturer of my company water pump can provide the before-sales service such as price of pump of blowdown pump model, blowdown, in order to offer client reference, and manufacturer of my water pump can provide the service of product of custom-built pump industry for the client. This product information is distinguish the knowledge at common centrifugal pump about pump of phreatic water blowdown:
One, pump of phreatic water blowdown
Principle of job of pump of phreatic water blowdown reachs scope of application
1. dives just as its name implies can put blowdown pump to underwater blowdown to use, it is the water treatment tool with a kind of very extensive use. What differ with common pump is, it works in underwater, and pump works to go up in the ground mostly.
Pump of 2. dive blowdown is main utility and suitable scope
Include boiler circulation of irrigation and drainage of agriculture of construction construction platoon, water, industry, urban and rural dweller to cite water is supplied, even rush to deal with an emergency provides disaster relief etc
The client is choosing go under waterBlowdown pumpThese a few parameter basically should consider when, include diameter of power of discharge, lift, revolution speed, form a complete set, rated electric current, efficiency, canal to wait a moment, if need to understand more, contact our Hairui Zhonglian Pump please.
2, centrifugal pump
Say what is centrifugal force first, centrifugal force is the expression with inertial object actually, for instance the water on umbrella, when umbrella is slow and rotational, water can follow umbrella is rotational, because the attrition force of umbrella and water makes as the centripetal force that gives water,this is like that. But if umbrella roll is accelerated, this attrition force can’t make water is making circular motion, so water will break away from umbrella outward predestined relationship moves, just like pulling block to make circular motion with a cord, if rate is too rapid, cord will disconnect, block will fly off, this is so called centrifugal force.
Centrifugal pump is designed according to this principle, the impeller blades that high speed rotates drives water roll, throw water piece, achieve feeding goal thereby. Centrifugal pumpHave a lot of kinds, from use it is OK to go up cent is civil with industrial pump, from it is OK to carry medium to go up cent is water pump, impurity pump, anti-corrosive pump.
The basic construction of centrifugal pump is comprised by six parts.
It is respectively: Impeller, pump housing, pump shaft, bearing, seal ring, filling cases.
1, the core part that impeller is centrifugal pump, muscularity of tower above of its rotate speed, the lamina on impeller has main effect again, impeller should be passed before assemble static balancing experiment. The requirement of surface of inside and outside on impeller is smooth, in order to reduce the attrition loss of current.
2, pump housing also weighs pump case, it is the main body of water pump. Rise to support fixed action, join with the bracket photograph that installs bearing.
3, the action of pump shaft is to lend shaft coupling and electromotor photograph join, electromotor turn be apart from pass impeller, so it is the main part that delivers mechanical energy.
4, bearing is a component part that supports pump shaft on pump shaft, have scroll bearing and sliding bearing two kinds. Scroll bearing uses bovine oil to cheer the bulk that should be 2/3 ～ 3/4 commonly appropriately as lubricant, too much meeting is calorific, have sound too less again and give out heat! Transparent oil makes lubricant what sliding bearing uses, cheer oil level line. The temperature that runs the bearing in the process in water pump is in 85 degrees higher to move in 60 degrees or so commonly, if be about high to search an account (whether to have foreign matter, oleaginous nigrescent, whether to drink water) seasonable processing!
5, seal ring says to decrease leakage annulus again. The clearance between impeller entrance and pump case crosses congress to cause the water of area of the high pressure inside pump to flow to meiobar via this clearance, affect the amount giving water of pump, loss of efficiency! Clearance crosses small conference to cause impeller and generation of pump case attrition to wear away. Decrease to increase circumfluence resistance inside leakage, delay a service life of impeller and pump case, inside pump case predestined relationship and department of union of impeller foreign aids contain seal ring, sealed clearance keeps advisable between 0.25 ～ 1.10mm.
6, filling case is main by filling, water seals annulus, filling canister, filling gland, water seals tubal composition. The action that filling cases basically is to close the space between pump case and pump shaft, do not let the current inside pump do not flow to the outside to also do not let the air outside enter pump inside. Maintain the vacuum inside water pump from beginning to end! When pump shaft and filling attrition generation quantity of heat is about to rely on water to seal a canal to live water is sealed to water make filling cooling inside the circle! Those who maintain water pump is normal move. The examination that cases to filling in the moving itinerate check out procedure of water pump so is special want to notice! Running 600 hours left and right sides to be about to undertake changing to filling.
The working principle of centrifugal pump
The working principle of centrifugal pump is: Rely on the impeller that high speed rotates, the liquid achieved energy below effect of inertial and centrifugal force in order to increased intensity of pressure. Before water pump is working, pump housing and wirereinforced suction hose must coal tub full water, prevent cavitation erosion phenomenon to happen. When impeller twirl, blade makes water rotate very quickly, rotating water flies from inside impeller below the action in centrifugal force, after the water inside pump is cast to go out, the central part of impeller forms vacuum area. Former water is in water atmosphere force (or hydraulic) overwhelmed through managing a network below action inside wirereinforced suction hose. Such loops unceasingly, can realize successive pump water. Be in what this is worth to carry is: Before centrifugal pump is started must to after water is full of inside pump case, just can start, will cause pump housing to give out heat otherwise, shake, quantity giving water decreases, cause damage to water pump (abbreviation cavitation erosion) cause equipment accident! So called cavitation erosion is to point to: When centrifugal pump is started, if air exists inside pump, because airy density is very low, the centrifugal force of the generation after rotating is very small, the low pressure that consequently place of impeller center area forms can’t fluid the liquid that imports under pump is inspiratory inside pump, cannot carry the phenomenon of the fluid.
The sort of centrifugal pump is very much, classified method has the following kinds of kind commonly
1, by impeller inspiratory means divides: Odd centrifugal pump suction type double centrifugal pump suction type;
2, divide by impeller amount: Centrifugal pump of multistage of only course centrifugal pump;
3, divide by impeller structure: Open wide type impeller centrifugal pump centrifugal pump of ajar type impeller is enclosed impeller centrifugal pump;
4, divide by actuating pressure: Centrifugal pump of high pressure of centrifugal pump of middling pressure of low-pressure centrifugal pump;
5, divide by pump shaft position: Horizontal establishs type centrifugal pump by the side of centrifugal pump.
For instance: ISG lives to water pump, the life uses pump, village water pump, the life gives sewerage, combine a design according to the unique structure of performance data of IS, IR centrifugal pump and vertical pump, ask strictly to undertake wine is made setting according to ISO2858, use home to high grade and hydraulic model undertakes designing and be become, it is product of better new generation horizontal pump. This product is same use hard alloy machine sealed.
Use range: ISW pump applies to industry and city to give drain off water, if the high level builds pressure boost to send water, gardens sprinkling irrigation, fire control pressure boost, remote carry, warm the pressure boost such as a refrigeration loop, bathroom reachs equipment complement, use temperature does not exceed 85 ℃ . ISWR pump applies to extensively: Metallurgy, chemical industry, spin, papermaking, and the pressure boost of water of boiler heat source such as guest restaurant inn, carry, reach urban heating system, use temperature does not exceed 120 ℃ .
Thank you very much to Shandong Hairui Zhonglian Pump Industry Co. , ltd. The visit of official website! Above is about phreatic water blowdown pump distinguishs the introduction at common centrifugal pump, still think to this problem like you deep one pace understanding, or the problem that has price of model of type selecting of product of other pump industry, water pump, water pump, water pump needs to solve, contact this water pump manufacturer please, my company returns production to suck pump oneself, welcome you at any time seek advice.
