Single person negative pressure weighing hood

NegotiableUpdate on 01/09

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Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Brief description: ZJSJ-1000 single person negative pressure weighing hood: Used for weighing and packaging dust and reagents in the equipment, it can control the overflow and upward movement of dust and reagents, prevent the inhalation hazards of dust and reagents to the human body, and avoid cross contamination of dust and reagents, protecting the safety of the external environment and indoor personnel.

Product Details

Origin category	domestic	application area	Medical and health, environmental protection, food, chemical, pharmaceutical

ZJSJ-1000 typeSingle person negative pressure weighing hoodIt is a local purification device used in places such as pharmaceuticals, microbiology research, and scientific experiments. It provides a vertical unidirectional airflow, with some clean air circulating in the work area and some discharged from nearby areas, creating negative pressure in the work area to prevent cross contamination and ensure a high cleanliness environment in the work area.

Weighing and packaging dust and reagents in the equipment can control the overflow and upward movement of dust and reagents, prevent the inhalation hazards of dust and reagents to the human body, and also avoid cross contamination of dust and reagents, protecting the external environment and the safety of indoor personnel.

The weighing operation area is protected by Class 1000 vertical laminar flow ISO 6 (NF, EN, ISO14644-1).

　　OneZJSJ-1000 typeSingle person negative pressure weighing hood Product features:

1. By sinking and lowering the low negative pressure airflow, a clean and sterile local environment is created in the operating area to avoid cross contamination between different drugs

2. Effectively control the overflow and upward movement of dust and reagents, prevent the inhalation hazards of dust and reagents to the human body, avoid cross contamination of dust and reagents, and protect the safety of the external environment and indoor personnel

Three levels of filtration: primary, medium, and high-efficiency filters. The high-efficiency filter in the liquid tank meets the testing requirements of DOP or PAO

4. Polymer uniform flow film significantly improves the uniformity of air outlet

　　2、 Structural features

This equipment is assembled from several parts, including the workspace, return air box, fan box, outlet box, and outer box. The control panel is located on the front of the working area inside the equipment. The control panel adopts a touch sensitive LED control panel, which can control the start and stop of the fan, adjust the fan working conditions, and adjust the required wind speed in the working area (after the equipment is installed and used, specialized personnel need to adjust the working conditions). There is a differential pressure gauge next to it, which tests the resistance of the filter. There is also an exhaust adjustment plate inside the air supply box, which can adjust the exhaust volume of the equipment within a reasonable range (after the equipment is installed in place, it should be tested by professionals, please do not adjust it without authorization)

　　III working principle

This device adopts a vertical unidirectional airflow form, and the return air needs to be pre filtered through a primary filter to remove large dust particles in the airflow,. After pre-treatment, the air is further filtered through a medium efficiency filter to fully protect the high-efficiency filter. Under the pressure provided by the centrifugal fan, it is filtered through a high-efficiency filter to meet the cleanliness requirements. The clean airflow is sent into the air box body, with 90% passing through the uniform airflow mesh plate to form a uniform vertical airflow, and 10% passing through the air volume adjustment plate to be discharged from the equipment. All airflows are processed by high-efficiency filters, so there is no residual dust in the air supply and exhaust, avoiding secondary pollution. Due to the formation of a stable unidirectional flow in the work area, the dust emitted in this area will be captured by the primary and medium efficiency filters under the influence of the unidirectional airflow. The equipment is equipped with a 10% exhaust system, which creates a negative pressure relative to the external environment, ensuring to some extent that dust in this area will not spread outside and protect the external environment.

Technical parameters of ZJSJ-1400, ZJSJ-1600, ZJSJ-1800 negative pressure weighing chambers

Model number Parameters	ZJSJ-1400	ZJSJ-1600	ZJSJ-1800
Cleanliness level	ISO5 (Class 100)/ISO6 (Class 1000)
Average velocity of descending airflow	0.45±20%
illumination	≧300LX
noise	≦65dB（A）
Power Supply	AC, Three phase 380V/50Hz (AC380V, 3 ¢, 50Hz)
Depth of appearance	1400
Appearance height	2400 (normal size)
Exterior width	1400	1600	1800
Inner diameter depth	1100
Inner diameter height	2000
Inner diameter width	1300	1500	1700
weight	500Kg	550Kg	600Kg
Specification and quantity of fluorescent lamps	15W*2	15W*2	15W*2
Total power	1100W	1100W	1100W
control mode	Frequency converter
texture of material	304 stainless steel 1.0mm
Exhaust air	10%
Note: Non standard sizes can be customized according to the different usage requirements of different customers