Design of high temperature pump should pay attention to the problem

Pump design mainly consider the pump material, sealing, bearings (cooling, structure, lubrication); structure, the coupling. Bearing frame. Axial force, radial force balance. Sealed form, cooled, and rinsed. High-temperature pump designed to see what is the main transport media. High temperature pump design should pay attention to several issues: 1, the structural support of the middle type. 2, due to the strength of the material and the temperature, so the intensity should be re-calculated, check the temperature and pressure gauge of the material. Including flange, wall thickness, bolts and so on. 3, high temperature, impeller design should pay attention to cavitation erosion resistance. 4, specially designed hot or cold water chamber, starting from the seal cooling, coupling to the temperature should be down, due to the general motor temperature limit. 5, Lubrication Oil lubrication, grade and bearing box temperature matching (in fact, by bearing temperature selected lubricants). 6, seal design should pay attention to the problem of easy vaporization of high temperature liquid, easy to make machine seal appear dry friction. 7, the relevant cooling pipe design, instrumentation layout reasonable, beautiful appearance.

Electronic Cigars

Electronic cigarettes are mainly composed of three parts: a pipe containing nicotine solution, an evaporation device and a battery. The atomizer is powered by a battery rod, which can convert the liquid nicotine in the cartridge into mist, so that the user has a smoking-like feeling when inhaling, and realizes "puffing the cloud". It can add various flavors of spices such as chocolate and mint to the pipe according to personal preference.

tobacco rod
The internal structure of the cigarette rod uses the same basic components: a light PCBA board, rechargeable batteries, various electronic circuits.
Most electronic cigarettes use lithium-ion and secondary battery power components. Battery life depends on battery type and size, usage and operating environment. And there are many different types of battery chargers to choose from, such as socket direct charging, car chargers, and USB interface chargers. The battery is the largest component of an e-cigarette.
Some e-cigarettes use an electronic airflow sensor to activate the heating element, which activates the battery circuit upon inhalation. Whereas manual induction requires the user to press a button and then smoke. Pneumatic is easy to use, the manual circuit is relatively more stable than the pneumatic, and the smoke output is better than the pneumatic. With the development of hardware and software, some manufacturers have begun to develop fully automatic machines to manufacture electronic cigarettes, eliminating the use of manual wiring, welding or electronics to achieve higher safety and reliability.

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