-
Anonymous users2024-02-12There is no need to use solvents, you can consider using a high-pressure spray gun and a small amount of surfactant to clean, which is safe and environmentally friendly.
-
Anonymous users2024-02-11The required parameters are:
Components of heat exchange medium (cold and heat), thermal resistance of dirt (dirt coefficient), relative humidity, inlet and outlet pressure, inlet and outlet temperature, flow rate, requirements for materials, corrosion margin, pressure loss requirements.
The final design of the finished heat exchanger should meet:
Heat exchange area, pressure loss, flow rate, water consumption.
-
Anonymous users2024-02-10Before the new standard NB T47006-2009, JB T7261 is divided into two categories: air cooling and air air, water cooling is less, and air cooling is not a pressure vessel.
-
Anonymous users2024-02-09What a question to ask! The policy is formulated, and it is about the small people? In terms of design, take a look at the NB T47006-2009
-
Anonymous users2024-02-08Hangzhou Hangyang Co., Ltd. has a special plate-fin heat exchanger, and its technology is internationally leading.
-
Anonymous users2024-02-07Dimethylformamide was used before, and methylpyrrolidone was used later.
The trend in the future is to use dipropylene glycol dimethyl ether, which has no air pollution, and is currently the most environmentally friendly solvent for cleaning circuit boards.
-
Anonymous users2024-02-06In order to prevent the oxidation reaction between the aluminum alloy and the oxygen in the air at high temperatures, thereby destroying the brazing, if the inert gas is introduced, the cost is increased, and you have to ensure that enough inert gas is introduced every time you braze, and the ** of inert gas is more expensive, not as cheap and convenient as vacuuming.
-
Anonymous users2024-02-05Vacuum brazing is mainly to prevent the oxidation of the welded material at high temperature, affecting the welding quality, and it is also possible to introduce inert gas protection in the furnace, and the effect is the same.
-
Anonymous users2024-02-04The furnace can be brazed with nitrogen without vacuuming, but the pressure will be lower.
-
Anonymous users2024-02-03Inert gas protection can be introduced into the furnace.
-
Anonymous users2024-02-02Our oil coolers are also brazed in continuous brazing furnaces.
-
Anonymous users2024-02-01Washback cleaning can also be cleaned with a 5% oxalic acid solution.
-
Anonymous users2024-01-31Change it, it must be rusty inside!
Volumetric heat exchangers belong to shell and tube heat exchangers, partition heat exchangers, and special heat exchangers for domestic hot water. What does that mean? This equipment is only used for the preparation of centralized domestic hot water, such as bathing water for hotels, hospitals, schools, etc.**, and is not suitable for the preparation of hot water in individual homes and residential quarters. >>>More
The advantages of embossed aluminum plate evaporator are high electrical efficiency, fast refrigeration speed, good refrigeration effect, corrosion resistance, and never rust; The disadvantage is that the wear resistance is low. The advantages of copper tube evaporator are high air pressure resistance, good air tightness, and long service life; The disadvantages are high cost, uneven welding surface and affecting the appearance, and the surface is easy to be corroded by water in the air to produce copper oxide and contaminate the food in the box.
Yes, in fact, it can be known from the definition. Pipe: Each time a fluid flows through a set of heat exchanger tubes, it is called a pipe. >>>More
Each tube of the U-shaped tubular heat exchanger is bent into a U-shape, the fluid inlet and outlet are installed on both sides of the same end, and the head is divided into two chambers with a partition, and each tube can be freely retracted to solve the problem of thermal compensation. The structure is simple, there is only one tube sheet, the sealing surface is less, the operation is reliable, and the cost is low; The tube bundle can be withdrawn, and the cleaning between the pipes (shell stroke) is convenient. Light weight, suitable for high temperature and high pressure occasions. >>>More
The jacketed heat exchanger is a kind of intermural heat exchanger, which is made by installing a jacket on the outer wall of the vessel, and has a simple structure; However, its heating surface is limited by the wall surface of the container, and the heat transfer coefficient. >>>More