With the blade type hydraulic loader, the test bench can not only achieve no-load start-up, but also stepless speed regulation, stepless loading, and arbitrary loading during operation. The frequency conversion motor directly drives the test gear box to run and control, and controls the frequency of the frequency conversion motor to control the speed of the entire integrated gear test bed. The pressure of the hydraulic system is adjusted by the pressure regulating valve of the hydraulic power system to control the torque of the torque loader.
The no-load running-in test carries out the no-load running test of each transmission gear box of the official product developed before the factory, and checks whether the lubricating oil path of the transmission gear box is unblocked, whether the sealing structure is reasonable, and the temperature rise of each bearing is investigated. Noise, whether the connectors and fasteners are loose, select the appropriate amount of lubricant through testing. For each test, the test oil volume of 16,14,12,10dm3 was used for positive, reverse running and overspeed test. The purpose was to test the influence of different oil quantity on the temperature rise and sealing of the box. Select the suitable lubricating oil for the quick freezing cold storage. the amount. The test speeds were 200, 250, and 270 km/h, respectively, and the heat balance test was performed. The test speed was 330km/h and 15min was run for the overspeed test.
Through the no-load running test, it can be known that the amount of oil added to the transmission gear box should not be too much, the amount of oil increases, the loss of the oil is increased, and the temperature of the lubricating oil rises. The oil loss in the high speed range is mainly the power consumed by the acceleration of the lubricating oil, and its magnitude increases as the number of revolutions increases. The loading test tests the newly developed high-speed, quasi-high-speed transmission gearbox prototype to simulate the actual operation and stress of the gear transmission. Comprehensive performance evaluation of the prototype under different torques and different speeds, evaluation of sealing performance, bearing lubrication effect and temperature rise, oil pool temperature rise, transmission efficiency. Through testing, the reliability of the transmission gearbox can be ensured to meet the safety of train operation. Complete the installation and commissioning of the load test.
Metal Body Square Water Cooling Tower
This series of products run stable, low noise, energy-saving, in office buildings, shopping malls, hotels, residential areas and other central air-conditioning supporting the use of better results.
The company's standard cooling tower according to the international design conditions design, can also provide customers with non-standard operating conditions or specific sizes under the special, special design.
The circulating water pump suction port shall be located below the water level of the cooling tower catchment basin, and the cooling tower outlet pipe shall not be allowed to be higher than the maximum water level of the catchment basin.
Pipe mounts should be pipe racks and cooling towers should not be allowed to directly bear the weight of the pipes.
The rehydration pipe of the cooling tower should be provided with a support stand to avoid vibration of the pipe when the float valve is rehydrated.
Rehydration pressure should be below 5m water pressure, national standard
The flannage pressure is 1.0Mpa.
When two or more units are assembled, our company will provide a connecting balance tube to balance the chassis water level. The tower top inlet should be set with a conditioning valve in order to enter each
.The water level of the tower is uniform.
The noise is measured at dm1.13VL-W at the equivalent diameter of the cooling tower (Dm1.13VL*W), 1.5 meters above the ground height, wherein L and W are the shape rulers of the tower
inch long and wide).
The use of cellular continuous blister series of diversion,heat dissipation, water collection three-in-one native filler, the whole suspension, gravity cloth water, low drop of water, with cold effect
High, low energy consumption, less drift water, less noise and so on, floating water rate is less than 0.001%.
When connecting different types of towers, the bottom basin water level height of different types of towers must be taken into account, and the base height must be adjusted to maintain the water level balance of the towers.
Metal Body Square Water Cooling Tower,Tower Water Cooler,Water Cooled Cooling Tower,Tower Cooling System
Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.fangzhouarkfluid.com