Introduction to vibration damping design of ventilation and air conditioning system:
The vibration reduction design of ventilation and air conditioning system shall include equipment and pipes. The equipment includes refrigeration unit, air conditioning unit, water pump, fan and other equipment that may produce large vibration. Pipeline vibration reduction is mainly to prevent the vibration of equipment from spreading through the pipeline.
Experts in the air conditioning and refrigeration market summarized the specific measures for noise elimination and vibration reduction in the design as follows:
1. In the air conditioning system, the air conditioning unit can directly use vibration isolation pads to isolate vibration. In addition to setting elastic shock absorption supports for equipment that generate vibration such as fans and water pumps, hoses should also be used between fans and pipelines. The hoses should be made of artificial materials or canvas materials. For fans below 6 #, the reasonable length of hose is 200mm; For fans above 8 #, the reasonable length of hose is 400mm
2. The water pump, water chiller, fan coil unit, air conditioning unit and other equipment are connected with the water pipe with hoses to prevent vibration from being transmitted to the pipeline.
There are two types of hoses: flexible hose and stainless steel bellows. The effect of vibration isolation and noise reduction of flexible pipe is very good, but its disadvantage is that it cannot withstand high temperature and high pressure, and its corrosion resistance is also poor. In the water system of air conditioning and heating, multiple pipes are used. Stainless steel bellows can withstand high temperature, high pressure and corrosion, but the price is expensive. It is generally used for vibration isolation of refrigerant pipelines.
3. Non combustible soft materials shall be used to fill the supports and hangers of the pipeline and through the wall for vibration reduction. When hoisting equipment with large vibration (such as fans), vibration damping hooks shall be used.
4. High efficiency and low noise water pumps and fans shall be selected and operated near the high efficiency point.
5. Control the wind speed of air duct and air outlet according to the noise standard to meet the room noise requirements.
6. The surface of the inner wall of the air conditioning machine room is attached with sound absorption materials and sound absorption orifice plates. The machine room door is silenced and closed so that the wall has sound absorption capacity, etc.
Introduction to Shanghai Peninsula Hotel:
Located on the historic Bund, the Shanghai Peninsula Hotel is a new building that has been the first in the Bund for 60 years. In the hotel, you can see the Bund, Huangpu River, Pudong and the former British consul
Grand view of the pavilion garden. In terms of decoration design, the hotel reproduces the style and features of Shanghai in the golden age known as "Oriental Paris" in the 1920s and 1930s. It has various guest rooms and suites, all of which are among the largest guest rooms in Shanghai; At the same time, there are Chinese restaurants and recreational facilities, which are convenient for guests to eat and relax. The Peninsula Shanghai Hotel is an ideal residence for business travel and leisure tourism. The hotel opened on October 18, 2009, with 15 floors and 235 rooms. Location: Huangpu District/the Bund, near Beijing East Road Address: No. 32, Zhongshan East 1st Road, the Bund, Shanghai Transportation: about 17km from Shanghai Hongqiao Airport; It takes 30 minutes to get to the hotel by taxi, and the normal fee is 60 yuan.
About 40 kilometers away from Shanghai Pudong International Airport; It takes 40 minutes to get to the hotel by taxi, and the normal fee is 134 yuan. About 15km from Shanghai South Railway Station; It takes 25 minutes to get to the hotel by taxi, and the normal fee is 44 yuan. About 2km from the square; It takes 5 to 8 minutes to get to the hotel by taxi, and the normal fee is 14 yuan. About 4 km from Shanghai Railway Station; It takes 10 minutes to get to the hotel by taxi, and the normal fee is 16 yuan. About 0.1km from the Bund; The hotel can be reached on foot.
Shanghai Dongfeng Pneumatic Ball Valve Group Co., Ltd. provides damping ball valve pneumatic ball valve products for the vibration and noise reduction project of the central air-conditioning room of Shanghai Peninsula Hotel. This product can reduce the vibration and noise of the air-conditioning unit by 80%, giving customers a quiet and comfortable accommodation environment. The working principle of pneumatic ball valve, pneumatic ball valve, air isolator, pneumatic actuator and pneumatic ball valve is to fill inert gas or oil gas mixture into the closed pressure cylinder to make the pressure in the cavity several times or dozens of times higher than the atmospheric pressure, and realize the movement of the piston rod by using the pressure difference generated by the cross-sectional area of the piston rod being less than the cross-sectional area of the piston. It is widely used in self-adjusting air suspension of commercial cars, buses, rail vehicles, machinery and building bases.