Miniature vacuum pumps, in a nutshell, are: having one intake and one exhaust nozzle and one exhaust nozzle each, and that a vacuum or negative pressure can be continuously formed at the inlet; a slight positive pressure is formed at the exhaust nozzle; the working medium is mainly It is a kind of gas and compact instrument.

Here are some examples:

For example, a closed container (at the beginning, the internal pressure is 100 KPa) is connected to a miniature vacuum pump VAA6005, and it is continuously evacuated. Finally, the gas pressure inside the sealed container will be lower than the atmospheric pressure and reach an absolute pressure of 60 kPa.

In addition to this, after special technical improvements, in addition to a single pumping vacuum pump, it is also possible to create a miniature vacuum pump for pumping and air pumping (that is, the exhaust port can produce a relatively large positive pressure), such as the PCF and FAA series. Pressurized, inflated, overcoming system resistance, etc. and the very unique WKA series of water and gas micro-vacuum pumps, it can be used for long-term idling, dry running and other occasions, unlike the general pump idling, or dry running will be damaged Pump.

It is because of the pressure difference between the air intake or exhaust air outlet and the outside atmosphere. At the same time, unlike large vacuum pumps, which require lubricating oil and vacuum pump oil, they do not contaminate the working medium, and they are compact, low-noise and maintenance-free. Hours of operation and other advantages, so the mini vacuum pump is used as a power device, widely used in gas sampling, gas circulation, vacuum adsorption, acceleration filtration, automotive vacuum booster and so on, has been widely used in medical, health, scientific research, environmental protection and other fields .

Bitumen Heating Storage Equipment

Asphalt heating storage equipment is an important road construction equipment, mainly used to heat and store asphalt in order to carry out road construction and maintenance when needed. The equipment has the characteristics of high efficiency, safety and environmental protection, and can provide stable asphalt supply for road construction.

Asphalt heating storage equipment is mainly composed of heating device, storage tank and control system. The heating unit uses oil or gas burners to transfer heat to the asphalt to heat it to the proper temperature. Storage tanks are large containers used to store heated asphalt, generally made of high-temperature resistant materials. The control system is responsible for monitoring the operating status of the equipment and the temperature of the asphalt to ensure the safe and stable operation of the equipment.

The heating principle of asphalt heating storage equipment is to transfer heat to asphalt through thermal conduction, so that it is heated. Heating devices are generally divided into direct heating and indirect heating in two ways. Direct heating is the use of the burner directly into the storage tank, hot air through the contact of hot air with the asphalt to heat it. Indirect heating is the use of heat exchangers to heat the asphalt in the storage tank without direct contact with the air. The two heating methods have advantages and disadvantages, and need to be selected according to the actual situation.

Asphalt heating storage equipment heating speed, can quickly heat asphalt to the use of temperature, improve production efficiency. At the same time, the equipment also has environmental protection characteristics, reducing exhaust gas and smoke emissions, reducing the impact on the environment. In addition, the operation of asphalt heating storage equipment is simple and easy to maintain, which can meet the needs of various road construction and maintenance projects.

In short, asphalt heating storage equipment is an important road construction equipment, with high efficiency, safety, environmental protection and other characteristics. It can provide a stable supply of asphalt for road construction, improve construction efficiency, reduce the impact on the environment and waste of resources. The equipment has a wide application prospect in the field of road construction.

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