Shangyu City Star Instrument New Products--Negative Pressure Weighing Cover-华强电子网

With the continuous development of science and technology, experimental instruments are constantly being updated, and the requirements of experimental instruments in related industries are gradually increasing. In order to meet the needs of the vast number of laboratory decoration instruments,

In 2015, Zhejiang Sujing Purification Equipment Co., Ltd. launched a new product, a negative pressure weighing cover.

Weighing hood

The weighing chamber is a special local purification equipment for pharmaceutical, microbiological research and scientific experiments. It provides a vertical unidirectional airflow. Part of the clean air circulates in the working area and is partially discharged to the nearby area to make the working area Negative pressure to prevent cross-contamination and to ensure a high cleanliness environment in the work area.

Dust, reagent weighing and dispensing in the equipment can control dust, reagent spillage, and rise, prevent dust and reagents from inhaling harm to the human body, avoid cross-contamination of dust and reagents, and protect the environment and indoor personnel.

The weighing operating area is protected by a thousand vertical laminar flow ISO6 (NF, EN, ISO 14644-1).

1. Product Features:

1 through the lower sedimentation type low negative pressure airflow in the operating area, creating a clean and sterile local environment to avoid cross-contamination between different drugs

2 Effectively control dust, reagent spillage, uplift, prevent dust and reagents from inhaling harm to human body, avoid cross-contamination of dust and reagents, protect the environment and the safety of indoor personnel

3 primary, medium and high efficiency filter three-stage filtration, liquid tank high efficiency filter meets DOP or PAO test requirements

4 polymer uniform film significantly improves the uniformity of the wind

2. Structural features

The equipment is assembled from the work area, the return air box body, the wind box body, the air outlet box body and the outer box body. The control panel is located on the front of the internal working area of ​​the device. The control panel adopts the light touch LED control panel, which can control the fan to start and stop, adjust the fan working condition, and adjust the wind speed required by the working area (after the equipment is installed and used, the special personnel should adjust the working condition. ). There is a differential pressure gauge beside it, and the resistance of the test filter is also arranged inside the air supply box body, and the exhaust air regulating plate can be adjusted within a reasonable range (after the equipment is installed, it is set by a professional) Try, don't adjust it yourself)

Third, the working principle

The device adopts a vertical unidirectional flow of air, and the return air is first pre-filtered through the primary filter to dispose large particles of dust particles in the airflow. The pretreated air is subjected to secondary filtration through an intermediate effect filter to fully protect the high efficiency filter. Under the pressure provided by the centrifugal fan, the high efficiency filter is used to achieve the cleanliness requirements. The clean air is sent to the air supply box, 90% through the uniform flow air supply stencil to form a uniform vertical air supply flow, and 10% through the air volume adjustment plate to discharge the equipment. All airflows are treated by high-efficiency filters, so the air is supplied and the exhaust air is free of residual dust, which avoids secondary pollution. Due to the formation of a stable unidirectional flow in the working area, the dust emitted in this area is trapped by the primary and secondary filters with the air flow under the influence of the unidirectional air flow. The equipment has 10% exhaust air, which forms a negative pressure relative to the external environment, which ensures that the dust in this area will not spread to the outside to protect the external environment.

Shangyu Star Equipment Co., Ltd.

Located in Daoxu Town, Shangyu District, Shaoxing City, Zhejiang Province, it is an enterprise integrating production, product research and development, processing and trade. The company's main products: drying box series, incubator series, laboratory muffle furnace series, distilled water series, as well as clean workbench, air shower, fume hood, biological safety cabinet and other complete purification equipment.

The company has a strong technical research and development team, a strong after-sales guarantee service system, is the leader in China's laboratory complete sets of equipment manufacturers, welcome customers to buy.