Installation position of high efficiency filter in clean operating room With the improvement of hospital building modernization, hospital clean room is developing from clean operating room to clean operating department. GB50333-2002 issued by the Ministry of Construction clearly stipulates the main technical indexes of clean operating rooms in China, such as cleanliness, temperature and humidity, air supply volume and fresh air volume, and puts forward strict requirements for the design of clean air conditioning systems in hospital operating rooms.
Therefore, the installation position of high efficiency filter in clean operating room has also changed. Different from other clean room high-efficiency filters installed in ordinary high-efficiency air supply outlets, clean laminar air supply must be adopted in clean operating rooms.
Laminar ceiling is the clean air supply terminal of clean operating room and laminar ward, which has the functions of efficient filtration, flow equalization and airflow compensation. The rationality of laminar ceiling structure directly affects the air supply effect and purification level of operating room. Vertical air supply mode, stainless steel laminar ceiling in operating room: laminar ceiling is developed according to international and domestic norms and technologies. After more than ten years of practical experience in the hospital, the structure is advanced and reasonable, and it is divided into I, II and III operating rooms. The box is sprayed with plastic, and the lower frame is all stainless steel, which is beautiful and durable. The ceiling installation of clean air supply is based on the leading leakage barrier technology at home and abroad. Using this device, the air flow in the clean room can be reasonably distributed, and the indoor cleanliness can be effectively guaranteed (the air supply surface is 100).
Laminar air supply ceiling adopts air purification technology to control microbial pollution to varying degrees, meet the requirements of space environment to control air cleanliness, and is suitable for various operations; And provide appropriate temperature and humidity to create a clean and comfortable operating space environment. It can be widely used in hospital clean operating room, clean ward and clean animal room.
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How to install high efficiency filter? The installation of high efficiency filter shall be provided by the manufacturer. If you sign a purchase contract with a regular manufacturer, the manufacturer will provide on-site service. The installation of high-efficiency filters is not troublesome, mainly because these filters are customized according to needs. Guohai Filter recommends that you contact the manufacturer directly for installation. I hope I can help you.
How to install high efficiency filter? Don't let the filter layer bump, and check the sealing position and seal it thoroughly.
What is the difference between HV high efficiency filter and PP high efficiency filter? The difference between H 13 and H 14 lies in the filtration efficiency: H 13 generally refers to 99.97%-99.99%; H 14 generally refers to 99.995%-99.999%; Both of them are precious to 0.3um dust particles;
The difference between aluminum baffle high efficiency filter and paper baffle high efficiency filter is divided into baffle high efficiency filter and non-baffle high efficiency filter. Anhui Renhe Purification pointed out that the high-efficiency filter with partition is made of superfine fiber as filter material and high-quality kraft paper by hot rolling, or made of offset paper and aluminum platinum as partition and glued with wooden frame or aluminum alloy frame, which has the advantages of high filtration efficiency, small resistance and large air volume.
At present, double-sided coated paper is commonly used as diaphragm to prevent the diaphragm from shrinking under the influence of cold, hot, dry and wet, thus emitting particles. However, when the temperature and humidity change, the spacer paper may emit larger particles, which leads to the unqualified cleanliness test of the clean workshop. Suitable for low-rise non-unidirectional flow engineering, various purification equipment and clean workshops.
Among diaphragm filters, aluminum diaphragm filters are mainly used in high temperature or high humidity environment, and paper diaphragm filters are used in ordinary clean environment. The air volume with baffle is relatively large, and the efficiency can only reach high efficiency. It can be used as high temperature resistant filtration, and the requirements for filtration materials are not as strict as those without baffles.
Generally speaking, aluminum membrane filters are mainly used in high temperature or high humidity environment, and paper membrane filters are used in ordinary clean environment. If in doubt, please consult Anhui people and Purify.
Where and how to install the high-efficiency filter in the microbiology room should be installed at the top. This should be installed according to specific parameter requirements. What we did before was done by Qingdao Ke Sheng Laboratory. You can ask.
Theoretically, when the wind speed reaches 15m/s, the parameters of the HEPA filter will not affect the HEPA filter, and the current wind speed of the ventilation duct is within 10m, so you don't have to worry about this problem. Experts in high-efficiency filtration technology have long thought about this problem, so the materials are glass fiber filtration materials with temperature resistance and corrosion resistance.
In fact, for a high-efficiency filter, the speed of airflow passing through the filter material is generally 0.0 1 ~ 0.04 m/s, and within this range, the resistance of the filter is directly proportional to the filtered air volume.
For example, a 484×484×220mm high efficiency filter has an initial resistance of 250Pa at the rated air volume1000 m3/h. If the actual air volume is 500m3/h, its initial resistance can be reduced to 125Pa. For the general ventilation filter in the air-conditioning box, the velocity of airflow passing through the filter material is in the range of 0. 13 ~ 1.0m/s, and the relationship between resistance and air volume is no longer linear, but an upward arc. If the air volume increases by 30%, the resistance may increase by 50%. If the filter resistance is a very important parameter for you, you should ask the filter supplier for the resistance curve.
You can also search "KLCFILTER" in Baidu to learn more about efficient filters, hoping to help the landlord!
Function of high-efficiency filter ● The filter material of high-efficiency air filter is a high-performance non-woven fabric composed of anti-fracture synthetic fiber, which has no risk of breakage similar to that of glass fiber and reduces the risk of leakage.
● The filter material of ●HEPA filter is of increasing structure, that is, the fiber layer density in the direction of pure air gradually increases, which prolongs the service life.
● After the filter material of ●HEPA filter is treated with viscosity, dust particles cannot pass through because the adhesive completely permeates the medium.
● High efficiency air filter has the advantages of large filtering air volume, small pressure loss, high filtering efficiency and reliable operation.
● Multi-level combined filtering, suitable for different user needs.
Unique filter quick-change mounting frame design is very convenient to use and maintain.
● Environmental protection. The filter does not contain PVC dye and halogen, and can be used for food-grade filtration.
Typical application of high efficiency air filter
● Inlet air filtration of gas turbine and centrifugal air compressor.
● Inlet filtration of high-pressure fans in power plants, food factories and beverage factories.
● Air purification systems in pharmaceutical, chemical, metallurgical, biological and electronic fields.
● Central air conditioning fresh air unit and ventilation system.
Shenzhen Keyu Changhong Purification Equipment Co., Ltd. provides more relevant information. If necessary, you can check it on the website!
The leak detection of high efficiency filter is L, but his main requirement is one minute! Because the dust particle counter has the difference between 2.83L and 28.3L!