Water ring vacuum pump / liquid ring vacuum pump working principle
Water ring vacuum pump (referred to as water ring pump) is a rough vacuum pump, it can get the ultimate vacuum of 2000 ~ 4000Pa, series of atmospheric ejectors up to 270 ~ 670Pa. Water ring pump can also be used as a compressor, called the water ring compressor, is a low pressure compressor, the pressure range of 1 ~ 2 × 105Pa gauge pressure. Water ring pump was originally used as a self-priming pump, and then gradually used in petroleum, chemical, machinery, mining, light industry, medicine...
Gear pump and gear pump What is the difference?
The difference between the gear pump and the general gear pump Can briefly introduce gear pump pumps are generally low pressure gear pump, flow from small to large gear pump, and general gear pumps, such as Taizhou gear pump, Fuxin gear Pump, most of the applications on the machine or other equipment on the package, small size, small flow and so on. These are the simple differences between gear pumps and gear pumps.
What is the difference between positive displacement pump and centrifugal pump?
Volumetric pumps are proportional to the speed and flow, such as gear pumps. Screw pumps, piston pumps, such as their rotation speed of 100 cubic meters when the flow, while the 1000 rpm can be understood as 10 cubic, but the actual efficiency Losses, traffic is about 9.5-9.8 cubic meters. Centrifugal pump by motor high-speed rotation of the medium (usually less viscous medium: water, diesel, kerosene, gasoline, etc.) by the impeller runner to throw out the medium. There are volumetric pumps...
Pump model code meaning (pump model meaning)
Pump model and the meaning of the representative: LG ----- high-rise building water pump; DL ------ multi-stage vertical water pump; BX ------- fire fixed dedicated pump; ISG ---- - single-stage vertical pipeline pump; IS ------- single-stage horizontal water pump; DA1 ------- multi-stage horizontal water pump; QJ ------- submersible pump Water pump model meaning: If 40LG12-15 40 - import and export diameter (mm); LG - high-rise building feed pump (high speed); 12- flow (m3h) 15- single-stage...
CQB magnetic pump and IMD magnetic pump difference and selection
CQB magnetic pump and IMD difference and selection of magnetic pump CQB magnetic pump compact structure, good looks, small size, low noise, reliable operation, easy to use and maintenance products are widely used: chemical, acid, alkali, smelting, Acid, lye, oil, precious rare liquid, venom, volatile liquid, especially easy to leak, flammable, acid and alkali, Explosive liquid pumping. Selection of supporting explosion-proof motor is more ideal. CQB magnetic pump to replace the dynamic seal...
How to choose Roots vacuum pump before the pump
Roots vacuum pump can not be used alone, must be equipped with front-stage pump unit, the use of front-stage vacuum pump is to reduce the Roots vacuum pump discharge pressure, the Roots vacuum pump compression ratio is limited, so choose the front vacuum pump speed Importantly, the maximum compression ratio of Roots vacuum pumps varies with the discharge pressure, with a maximum compression ratio of up to 3: 1 at high discharge pressure and a maximum compression ratio of between 1 and 10 mbar...
Shandong Haiyang nuclear power project circulating pump model pump performance test successful
Shandong Haiyang Nuclear Power Plant Phase I circulating pump model pump performance test recently in Japan Nippon Manufacturing Co., Haneda Plant successfully held and passed the inspection and acceptance. The nuclear power ministry of the company, Shandong Nuclear Power, complete sets of companies, China Power Investment Engineering Company, the National Nuclear Power Design and Planning Institute of the relevant personnel to participate in the inspection work. It is understood that this...
Comparison between Axial Flow Pump and Francis Pump
1, different than the number of revolutions, mixed flow pump is 300m3 / h-500m3 / h, axial flow pump is greater than 500m3 / h. 2, the flow through the impeller after the outflow of different directions (which is the main difference): Axial flow pump to maintain axial flow (parallel with the impeller rotation center), mixed flow pump is both axial and radial synthesis and the impeller rotation center into The angle of a certain angle. 3, the same flow, axial pump head lower than the mixed flow...
High pressure three screw pump SPF three screw pump
Nanjing Ai Branch Pump Co., Ltd. determined to create the world's best screw pump I. Overview HSN series three screw pump for conveying fuel oil, lubricating oil, hydraulic oil and other lubricants and lubricants. The medium to be transported must not contain any abrasive particles and material that corrodes the pump material. HSN Series Triple Screw Pumps are used as fuel pumps for conveying, boosting and fuel burners in fuel systems; as transmission and refueling pumps in oil delivery...
Roots vacuum pump pre-pump principle of matching
Normally, the principle of matching front-stage pump of Roots vacuum pump is as follows: 1. Pre-stage pump is required to pre-vacuum the main pump required. 2, the maximum allowable discharge pressure of the main pump, the former pump must discharge the maximum amount of gas discharged from the main pump in time, the former pump pumping speed in accordance with the actual pumping speed at the actual pumping speed. 3, doubles as pre-pumping pump to meet the pre-pumping time and pre-pumping...
Difference between intelligent vacuum pump and miniature vacuum pump
The so-called intelligent vacuum pump, as the name suggests is intelligent, automated vacuum pump. Generally refers to the integrated sensor, vacuum gauge, microcontroller and other monitoring system of miniature vacuum pump | miniature vacuum pump | miniature pump, the key parameters of the vacuum pump such as vacuum (negative pressure), flow, real-time, automatically adjust to complete the general to build A more complex system to be completed, such as vacuum packing, automatic shutdown time,...
Diaphragm metering pump fixed stroke diaphragm pump structure (Figure)
Diaphragm Metering Pump Fixed Stroke Diaphragm Pump Structure Improvements Diaphragm Metering pumps have the disadvantage that the diaphragm is susceptible to breakage, especially to fixed stroke diaphragm pumps. Once the diaphragm ruptures, the metering fluid and hydraulic oil system contaminate each other and cause serious losses. By adding auxiliary valve and the use of double-diaphragm with alarm, diaphragm metering pump to run more secure. First, the diaphragm metering pump Structural...
High-pressure three screw pump twin-screw pump experts
Nanjing Ai Branch Pump Co., Ltd. determined to create the world's best screw pump I. Overview HSN series three screw pump for conveying fuel oil, lubricating oil, hydraulic oil and other lubricants and lubricants. The medium to be transported must not contain any abrasive particles and material that corrodes the pump material. HSN Series Triple Screw Pumps are used as fuel pumps for conveying, boosting and fuel burners in fuel systems; as transmission and refueling pumps in oil delivery...
Comparison between Internal Gear Pump and External Gear Pump
1, the external gear pump flow displacement: V = πDhB = 2πm2zB In fact, the volume between the tooth space slightly larger than the tooth size, so usually take 3.33, then there: V = 6.66zm2B flow: q = Vnηv = 6.66 zm2Bnηv The above calculation is the average external gear pump flow. Features: 1) The average flow of the gear pump is proportional to the number of teeth, and proportional to the square of the modulus. 2) The flow of gear pump is proportional to tooth width, but the increase of tooth...
Servo pump working principle and variable pump performance comparison introduced
The servo pump is driven by a servo motor. The servo pump to be tested is driven by an AC servo motor. Servo motors belong to the category of control motors. Their main function is to transmit and convert signals such as servo motors to convert voltage signals to torque and speed, and so on. The main requirements of the control motor: action sensitive and accurate, reliable operation, low power consumption, but also for servo motor. Xiamen Bora Industry and Trade Co., Ltd. will try servo pump...
Hot oil pump start-up and switching pump steps introduced
Hot oil pump start-up and switching steps of the pump: a) check the appearance of the pump, motor parts are complete, non-destructive; b) a good car, add good oil, cooling water, base cooling water; c) Leading to the pump and dehydration, preheating the pump in advance; d) fully open the inlet valve, the outlet valve, open the exhaust valve so that the liquid filled pump; e) start the motor, check the motor temperature, bearing temperature, vibration, No leakage; f) When the pump outlet...
Analysis of DC micro-pump, micro-vacuum pump power supply with the principle
Miniature vacuum pump, miniature pump, miniature pump on the power requirements are mainly two points: (A) miniature vacuum pump power supply must have a micro-vacuum pump, miniature pump, miniature pumps, etc., connected to the power supply, under any load and operating conditions, the power supply The voltage should be stable. With the switching power supply is a better solution. If the power supply is not regulated, the voltage may be high if the pump is not connected, and the supply voltage...
The advantages and disadvantages of electric diaphragm pump and piston pump
Piston pumps and electric diaphragm pumps more advantages and disadvantages of the advantages of high pressure airless spray high efficiency, fine and smooth surface, strong adhesion, paint loss and get the building, machinery, ships, furniture and other industries widely used. High-pressure airless sprayer is divided into pneumatic airless sprayer (pneumatic diaphragm pump), electric airless sprayer (piston pump and electric diaphragm pump), because pneumatic airless sprayer need to bring...
What is the difference between a multistage pump and a single-stage pump?
1, single-stage pump is only one impeller pump, the highest lift is only 125 meters; 2, multi-stage pump refers to the pump with two or more impellers, the maximum lift can be more than 125 meters; multi-stage pump in the single Pump head needs to be equipped with two-stage motor, the impeller can be increased by increasing the number of four motor, which can improve pump life and reduce unit noise, but the multi-stage pump repair relative single-stage pump is difficult a little. 3, the pump...
Application of new pump valve technology in submersible sewage pump
Submersible sewage pump is a pump and motor Siamese, and at the same time submerged work under the pump products, and general horizontal or vertical sewage pump, submersible sewage pump has the obvious advantages of the following aspects: Compact structure, small footprint. Submersible sewage pump submersible work, so can be installed directly in the sewage tank, without the need to build a dedicated pump room for the installation of pumps and machines, you can save a lot of land and...
Plunger pump principle, single-plunger pump working principle
Piston pump principle First, the radial piston pump features: the plunger arranged in the radial direction of the drive shaft, that is, the plunger centerline perpendicular to the drive shaft centerline 1. Radial piston pump working principle Structure: the stator, rotor, Plunger, oil shaft, etc. ↓ ↓ Eccentric fixed working principle: V close into the formation - the same as the first half of the week, the oil absorption V dense change - the rotor clockwise <second half of the week, the oil...
The meaning of self-priming pump in mini pump
Now on the market there are all kinds of micro-pump | micro-circulation pump | micro-pump | high-pressure micro-pump | liquid sampling pump | small pump | self-priming pump | DC pump | diaphragm pump, whether self-priming function, mainly see the following two points : 1. self-absorption means: the pump suction pipe is the case of air, the use of negative pressure pump (vacuum), under the action of atmospheric pressure will be lower than the water pressure on the pump up, and then from the pump...
Use fire pump fire pump precautions and maintenance
Fire pump fire pump used in fire fighting, water treatment, environmental protection and other departments, used to pumping all kinds of liquids. The following describes the fire pump fire pump to use some of the precautions and maintenance: First, the fire pump fire pump before the start of the inspection 1, check the process of valve switching, the corresponding return valve switch conditions are met. (1) In the daily test pump, the return valve should be fully open, the valve set in the...
LQ series colloid pump and other pump difference
1.LQ series gel pump compared with other pumps mainly the following differences: a) LQ series colloid pump is a positive displacement pump, the delivery flow can be more precise control can also be easily made of variable displacement pump. Centrifugal pump output flow can not be controlled, with the resistance of the increase and decline; The pump has a strong self-priming capability, while the centrifugal pump must be filled with liquid before the move. b) LQ series colloid pump speed is very...
