Air cleaning method for safe isolation ward

A technology of safe isolation and clean air, applied in the field of safe isolation of respiratory infectious diseases, can solve the problems of ineffective protection of patients from external viruses, virus infection, poor resistance, etc., to prevent pollution, eliminate germs, and reduce infection. Effect

Inactive Publication Date: 2003-11-05
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, patients with infectious diseases such as "SARS" are weak and have poor resistance. They are susceptible people and are susceptible to virus (bacteria) infection
Negative pressure alone cannot effectively protect patients from external virus (bacteria) infection. Therefore, special measures must be taken to keep the air in the ward clean and sterile to prevent patients from being infected by external viruses (bacteria).

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0015] Assemble a fully sealed isolation ward of 20 square meters, with an air intake of 600m 3 The air intake and exhaust air volume per hour is 700m 3 / h exhaust fan (that is, the exhaust rate of the exhaust fan is greater than the intake rate of the intake fan), to ensure that the air in the ward is always in a fresh air negative pressure state, and the negative pressure difference is kept at about 10pa. The air entering and exiting the isolation ward is filtered in three stages. The first stage uses a coarse-effect filter to filter and remove dust particles larger than 5 ≥ μm in the air. The coarse-filtered air enters the fan. After the air comes out of the fan, it will be filtered by the medium-efficiency filter to remove dust particles with a diameter of ≥1 μm in the air, and then pass through the high-efficiency filter for the third-stage filtration. The efficiency of the filter is calculated by dust particles ≥0.3 μm It is 99.97%, so that the cleanliness of the air co...

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PUM

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Abstract

The air cleaning method includes the following steps: setting air intake and air exit in the safe isolated ward; setting air intake blower and exhaust blower separately in the air intake and the air exit with the air intake rate being lower than air exit rate to form negative pressure in the isolated ward; and treating both the intake air and exhaust air through three-stage filtering. The said method can make the medical persons and the patients in fresh air and prevent germ and virus in the ward from diffusing to peripheral, so that the ward may be set in any place. The present invention is suitable for safe isolation to infectious diseases, especially SARS, pulmonary tuberculosis and other respiratory tract infectious diseases.

Description

1. Technical field [0001] The invention relates to a method for filtering and disinfecting the air, especially a method for cleaning the air in a safe isolation ward, which can be used for the safe isolation of infectious diseases, and is especially suitable for respiratory infectious diseases such as atypical pneumonia (SARS) and tuberculosis security isolation. 2. Background technology [0002] The "SARS" virus is threatening the safety of human life, and fighting against "SARS" is a major task facing mankind. The core content of fighting against "SARS" has two aspects, one is to prevent the spread of "SARS" virus; the other is to effectively treat "SARS" patients. [0003] Patients suffering from "SARS" are the main source of transmission of the "SARS" virus. How to effectively isolate the "SARS" patients and block the spread of the "SARS" virus is obviously very important. To effectively treat SARS patients, in addition to effective therapeutic drugs, it is obviously v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/16
Inventor 潘毅陈强王瑞雪冯维波
Owner NANJING UNIV
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