The difference between a water pump and a pump, the difference between a booster pump and a pump

The main difference between a water pump and a pump is that it works and the application scenarios are different.

A water pump is a mechanical device that rotates or moves to pump or push water or other fluids from a low-pressure area to a high-pressure area to meet the needs of various industrial, agricultural, and civil applications. Water pumps are divided into various types according to their working principles, such as centrifugal pumps and forward displacement pumps.

A water pump is a special type of water pump that is mainly used to pump groundwater or deep water to the surface to meet the needs of irrigation, water supply, fire protection and building drainage. Pumps are often used in specific applications, such as pumping water from deep wells, conveying and handling liquids in industrial processes, etc.

Therefore, although water pumps and pumps are similar in appearance, their main application scenarios and operating principles are different. Choosing the right pump needs to be determined based on the actual needs and application to ensure that it can meet the specific needs and requirements.

The water pump has a submersible pump.

The pump body is immersed directly in the water, and the head is considered to be the distance from the pump to the water outlet.

There are self-priming pumps. The pump body is on land and sucks water up through the pipeline, so additional consideration needs to be taken into account.

The pump we often talk about is generally a self-priming pump.

There are also pipeline booster pumps, such as fire pumps, and pipeline pumps used in old residential homes, which can strengthen the effect of municipal water supply.

Hello dear! We'll be happy to answer for you. The difference between a booster pump and a water pumpA:

1.The installation position is different: the booster pump is generally installed on the inlet pipeline, cut a section on the original pipeline, and then connect the pump in series to the top.

The circulating pump is installed on the return pipe to increase the pressure of the system and promote water circulation. It is also necessary to cut a section of the pipeline and then connect the pump in series to it. However, it should be noted that the booster pump.

2.The scope of use is different: booster pumps are generally used in heating systems, as well as in the case of low water pressure in tap water pipes or water heaters.

The circulating pump is mainly used for self-heating users and home heating system circulation. If the inlet water temperature is OK, but the outlet water temperature is low, the use of a circulating pump can solve the problem. 3.

There is a difference in the strength of the booster: from the perspective of the strength of the booster, the booster pump is mainly to solve the problem of low pressure. It belongs to the type of pump with low pressure, and the booster pump relies on centrifugal force to achieve pressurization.

The pressure of the circulating pump is comparatively higher because it can drive the circulation of the entire heating system.

1. Different water supply methods: self-priming pump and booster pump cannot be mixed, because self-priming pump is generally used in pipeline water supply in tap water, water heater, etc., while booster pump is generally used in pipeline water supply for heating circulation. 2. Different ways of working:

Self-priming pumps are generally turned on and operated as needed, while booster pumps are generally operated 24 hours a day. 3. Different functions: the self-priming pump generally only has the self-priming function and the pressurization function, while the boosting pump generally only has the pressurization function, and does not have the self-priming function, and only when the water flows into the pump will it have the pressurization function.

The above is a detailed introduction to what is the difference between self-priming pump and booster pump, I hope it can help those friends who need to install self-priming pump and booster pump.

The pressure of the water pump is not very large, the pump pressure of the water pump in our laboratory is 15-25mmHg, and the oil pump is 2-3mmHg, if the boiling point of the product is not so high, you can choose the water pump, generally remove the solvent with a water pump, or some liquid products with a boiling point within 270 degrees that are not easy to decompose use a water pump; Oil pumps are generally used to distill substances with low melting points.

Oil pumps are used in vacuum distillation, and pressure gauges - buffer bottles - three drying towers (calcium chloride + potassium hydroxide + paraffin tablets) - oil pumps are generally connected. Before plugging in the power supply, the piston of the buffer bottle is opened, the air is connected, and after the oil pump works, slowly adjust the buffer piston to adjust the vacuum to the required level.

Basic principle. The boiling point of a liquid is the temperature at which its vapor pressure is equal to the outside atmospheric pressure. The boiling point of a compound always changes with the difference of external pressure, and some compounds with a high boiling point (above 200) are often decomposed, oxidized or polymerized when they are distilled at atmospheric pressure due to the increase in temperature.

In this case, vacuum distillation should be used instead of atmospheric distillation. These phenomena are avoided by reducing the boiling point of the liquid by reducing the pressure within the system.

In the conventional sense, the water pump is mostly a centrifugal pump, and the oil pump is mostly a gear pump.

The medium conveyed by the water pump itself is dense and has a low viscosity.

The medium conveyed by the oil pump has a small density and high viscosity, and the difficulty of conveying is greater than that of the water pump.

First, the principle is different.

1. Sewage pump: It is a kind of centrifugal impurity pump, with a variety of forms, and the sewage pump is the same as other pumps, the impeller and the pressurized water chamber are the two core components of the sewage pump.

2. Water pump: it has one air (water) nozzle and one exhaust (water) nozzle each with one in and one out, and can continuously form vacuum or negative pressure at the inlet; A slight positive pressure is formed at the exhaust nozzle.

Second, the characteristics are different.

1. Sewage pump: the tearing mechanism can tear and cut off the fibrous material, and then discharge it smoothly without adding a filter screen to the pump; The design is reasonable, the supporting motor power is small, and the energy-saving effect is remarkable; With the latest material mechanical seal, the pump can be safely and continuously operated for more than 8000 hours; The vibration selling wheel is quiet, the noise is small, the temperature rise of the motor is low, and there is no pollution to the environment.

2. Water pump: The working medium can be gas, or tung is liquid, a small size of an instrument, often known as micro vacuum pump, micro pump, micro self-priming pump, can be queried on the Internet related parameters and experimental data.

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Third, the application of slag is different.

1. Sewage pump: suitable for pumping liquids containing fibers or other suspended solids below 80 for cities, industrial and mining, enterprises, sewage and feces, and some aquatic products. If the delivery of acidic and alkaline and other chemical mixtures containing more salts can cause corrosion of the liquid should be indicated, the factory can be the most anti-corrosion material pump assembly pump.

2. Water pump: suitable for water treatment, liquid sampling, scientific research, instrumentation, chemical analysis, health care, medicine and health, biological engineering, automatic control, environmental protection and many other fields.

Water pumps can be roughly divided into centrifugal and positive displacement according to the working principle.

1. Centrifugal type: It is a kind of pumping machinery that uses the centrifugal movement of water. Before starting, the pump should be filled with water, and the rotating impeller after starting drives the stool shed water in the pump to rotate at high speed, and the water moves centrifugally, throws out and is pressed into the outlet pipe.

When the water is thrown out, the pressure near the impeller decreases, creating a zone of low pressure near the rotating shaft. The pressure here is much lower than the atmospheric pressure, and the water outside is under the action of atmospheric pressure, and the bottom valve is rushed through the liquid inlet pipe into the pump. The incoming water is thrown out and pressed into the outlet pipe as the impeller rotates at high speed.

The impeller is constantly rotating at high speed under the drive of the power machine, and the water is continuously pumped from low to high.

2. Volumetric type: volumetric pump Volumetric pump, the energy is periodically applied to the interface of one or more mobile effective accessories and liquids - equivalent to the volume through the action of force, resulting in a direct rise in pressure to reach the device that conveys the liquid through the valve or pipe fittings until the pressure required to discharge the pipeline. It is a kind of pump that relies on pistons, plungers, diaphragms, gears or blades and other working parts to make rough collision and repetition motion or rotary motion in the pump body, so that the volume of several working cavities in the pump body changes periodically, and alternately sucks in and discharges liquid.

A water pump is primarily a machine used to convey or pressurize liquids. For example, it can be used to transport water, oil, acid and alkali liquids, liquid metals, etc., and can also be used to transport liquids, gas mixtures and other liquids. It can transfer the mechanical energy of the prime mover or external energy to the liquid, so that the liquid energy can increase rapidly.

The working process of the gas-liquid mixed pump, due to the special structure of the pump body of the self-priming pump, after the pump stops, there is a certain amount of water in the pump body, after the pump is started again, due to the rotation of the impeller, the air and water of the suction pipeline are fully mixed, and are discharged to the gas-water separation chamber, the gas in the upper part of the gas-water separation chamber overflows, and the water in the lower part returns to the impeller.

The main parameters of the pump are introduced, the flow rate Q, the flow rate is the amount of liquid (volume or mass) that the pump conveys out in a unit time, and the volume flow rate is represented by Q. The mass flow rate is expressed in qm, and the head is the increase in the energy of the unit weight of liquid pumped by the pump from the pump inlet to the pump outlet. That is, the effective energy obtained by a newton of liquid through the pump, that is, the height of the liquid column pumped by the pump, which is customarily referred to as meters.

The speed is the number of revolutions per unit time of the pump shaft, and the NPSH is also called the net positive tip, which is the main parameter that represents the cavitation performance, and the NPSH has been expressed by δh in China, and the power of the pump usually refers to the input power, that is, the power on the shaft of the prime mover transmission pump, so it is also called the shaft power, which is represented by P.

The effective power of the pump, also known as the output power, is expressed by PE, which is the effective energy obtained by the liquid transported from the pump in a unit time, because the head refers to the effective energy obtained from the pump by the unit heavy liquid output by the pump, so the product of the head and the mass flow rate and gravitational acceleration is the effective energy obtained from the liquid output from the pump in a unit time - that is, the effective power of the pump.