Sound insulation cover technical characteristics
Nanchang Jialu environmental protection sound insulation cover adopts color steel composite board and 100 thick sound absorption wall structure. The sound insulation cover is modular assembly type and module thickness 100. It can be repeatedly disassembled and assembled structure. Accessory passages, sound insulation doors and other accessories; the sound insulation cover adopts the method of “outside suctionâ€, which has large sound absorption and good heat dissipation effect; high module strength, repeated disassembly and assembly are not easy to be deformed, and equipment maintenance is safe and convenient; Beautiful and flat.
Sound insulation module and its material
Sound insulation module: the thickness is designed to be 100mm, consisting of cold-rolled panel, sound absorbing material, stamped C-shaped skeleton, plain non-alkali glass cloth and galvanized perforated plate;
The connection mode of the sound insulation panel, the perforated plate and the skeleton is riveted, and the others are used for intermittent welding or spot welding;
Polymer damping layer: Considering the low frequency component of the blower noise, strong penetrating power and slow decay, the noise control is difficult. To enhance the overall sound insulation effect of the sound insulation cover, the inner wall of the sound insulation cover panel is laid with a 3mm polymer damping layer. Effectively reduce the resonance caused by the sound transmission and sound waves of the steel plate;
U-shaped channel steel: "U"-shaped channel steel (thickness not less than 2mm) made of steel plate bent inside the sound-insulating panel is arranged according to the size of □ 600×1000mm to divide the sound-absorbing material to prevent the module from being inside. The stack of sound absorbing materials increases the strength of the module;
Sound absorbing material: uniformly filled with a bulk density of 51Kg/m3 in the cavity of the sound insulation module, high temperature resistant, waterproof and ultra-fine glass wool felt, whose thermal conductivity is less than 0.032; the inner side adopts galvanized perforated plate with perforation rate of about 24%. The inner surface of the orifice plate is provided with plain glass cloth, so as to avoid the loss of sound absorbing material, and the sound absorbing material can be prevented from overflowing while ensuring the sound absorbing effect; the punching hole adopts an automatic punching machine to ensure the flat and beautiful appearance of the perforated plate; 30mm is not opened to facilitate the riveting of the orifice plate and the skeleton.
Module assembly process characteristics
In order to reduce the sound transmission of the gap and achieve better sound insulation effect, the sound insulation module is designed as a "maze" structure, and is connected with a flexible material such as a full-faced rubber, such as Fuller, rubber, etc. The connection between the module and the module is a square tube, and the coupling screw is in a pre-buried form and is not exposed.
The thickness of the damping layer between the outer baffle and the skeleton is more than three times the thickness of the outer baffle, which effectively eliminates the influence of resonance and anastomosis on the sound insulation performance of the acoustic enclosure.
A 6 to 10 mm thick rubber damping pad is placed between the sound insulation module and the ground to prevent rigid sound transmission. ?
For technical reasons, the fan pipe needs to pass through the sound insulation module. The sound insulation module is designed as two semi-circular fastening structures, and then is sealed by a cladding technique to eliminate the gap sound transmission;
The sound insulation module is bolted to the steel structure, and elastic non-porous materials such as rubber are added at the joint to avoid rigid sound transmission.
Thermal design
Cooling and ventilation: In order to ensure the normal operation of the fan, it is convenient for the staff to overhaul and maintain the equipment, and adopt the form of natural air intake forced exhaust in the sound enclosure;
Airflow organization mode: the cold air enters from the bottom of the cover into the air muffler, and the hot air is forcibly discharged from the upper part of the sound insulation cover;
Inlet muffler: In order to prevent noise from coming out from the air inlet, a matched air muffler must be configured. The muffler is designed to be the difference between the noise source and the fan integrated noise value and the designed standard, and consider 3 to 5 dB (A The amount of surplus.
Nanchang Jialu Environmental Protection Engineering Co., Ltd. is a professional enterprise engaged in R&D and manufacturing of sound insulation cover products. With the principle of “technology as power, quality as guarantee, reputation and development, management and efficiencyâ€, Jialu Green provides high quality and reliable sound insulation cover products and satisfactory services for customers.
Pain Relief Patch For Breast
Pain Relief Patch for Breast
[Name] Medical Cold Patch
[Package Dimension] 10 round pieces
The pain relief patch is composed of three layers, namely, backing lining, middle gel and protective film. It is free from pharmacological, immunological or metabolic ingredients.
[Scope of Application] For cold physiotherapy, closed soft tissue only.
[Indications]
The patches give fast acting pain relief for breast hyperplasia, breast fibroids, mastitis, breast agglomera tion, swollen pain.
[How To Use a Patch]
Please follow the Schematic Diagram. One piece, one time.
The curing effect of each piece can last for 6-8 hours.
[Attention]
Do not apply the patch on the problematic skin, such as wounds, eczema, dermatitis,or in the eyes. People allergic to herbs and the pregnant are advised not to use the medication. If swelling or irritation occurs, please stop using and if any of these effects persist or worsen.notify your doctor or pharmacist promptly. Children using the patch must be supervised by adults.
[Storage Conditions]
Store below 30c in a dry place away from heat and direct sunlight.
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Shandong XiJieYiTong International Trade Co.,Ltd. , https://www.xjytmedical.com