Vacuum pump exhaust gas sterilization device

Vacuum pump exhaust gas sterilization device
4
Domestic brand filter elements are all substitutes for the original brand filter elements produced by our company, and their filter materials are products of HV company imported from Germany with the registered trademark of “ Jiajie ” Cards
Other brands involved in the company have no brand significance, but are only used as a reference for product model and customer selection
Imported filter elements and filters are imported with original packaging and have anti-counterfeiting marks
Our company has been OEM various styles of compressed air precision filter elements for major domestic enterprises for a long time

Since the outbreak of COVID-19, all parts of the country have strengthened epidemic prevention and control in accordance with the unified deployment
As the front line of epidemic prevention and control and a densely populated place, hospitals play a very important role in preventing and combating the epidemic by controlling the spread of various pathogen pollution sources and reducing the secondary harm caused by the spread of viruses in the air

In the case of an urgent epidemic, Hangzhou Jiajie Electromechanical Equipment Co
, Ltd
actively responded to the National Health Commission's national health office medical letter (2020) No
104 “ Notice of the general office of the National Health Commission on the location of the exhaust port of the vacuum pump in the designated hospital for full sensitive emergency screening ” To develop and produce stainless steel vacuum system sterilization filter

Hospital Center attraction system
I
product introduction
Medical vacuum system is widely used in medical and surgical operations to provide timely and reliable attraction power
In the environment, the increasing sensitivity to pollution and the protection against infection make filtration necessary for these systems

  The necessity of vacuum system filtration has been widely popularized
Insufficient inlet filtration will damage the vacuum pump, destroy the vacuum degree, cause pollution and stop the operation of the equipment
The pollutants in the inlet pipeline include particles, dust, water vapor and other gases
Outlet emissions will also include particles, oil and harmful gases
Special inlet and exhaust filters can effectively deal with these pollutants

Special sterilization and filtration are dangerous for the pipelines and outlets of any vacuum system to carry a large number of bacteria
In order to protect the health of patients, medical staff, other service personnel and the general public, countries around the world proposed to install and maintain bacterial filters many years ago
Failure to install or maintain a sterilizing filter in front of the vacuum pump will not only damage the vacuum pump, but also make the vacuum pump a source of bacterial pollution
The appropriate temperature and humidity of the vacuum pump is an ideal hotbed for bacterial growth
From a technical point of view, it will cause risks to the vacuum pump itself, which will later lead to the replacement of the vacuum pump The performance requirements of vacuum sterilization filter are in accordance with the test method of bs3928:1969
When the filtration efficiency exceeds 99
995% and the vacuum degree is 630mbar, the differential pressure loss does not exceed 30mbar  Instructions for filter replacement and handling are required   As2896 medical gas system describes the inlet filter as follows: the medical inlet filter should be a bacterial filter, with appropriate size so that the pressure difference does not exceed 3
5kpa, and the filter element should meet the ISO8573
1 class I requirements of 0
01μ M Provisions of China gb50751-2012 technical code for medical gas engineering on sterilization filter: 5
2
16 filtration accuracy 0
01-0
2μ m
The filtration efficiency is 99
995%
The sterilizing filter should be maintained and the filter element should be replaced in time to avoid excessive differential pressure affecting the system flow
  The negative pressure sterilizing filter mainly adopts a large area of sterilizing filter element with a quick installation structure, and the filtering accuracy is 0
22-mu; 0
01μ， Use 121∴ Regular sterilization with net steam can remove bacteria and various bacteriophages by 99
995%
It is a necessary link in the medical center suction system industry, and the sterilization filter is a good choice for negative pressure air sterilization
The sterilizing filter is made of 304 or 316L stainless steel shell, and matched with mirror polishing to achieve no parasitic bacteria dead corner
The filter element of the sterilization filter adopts the steam sterilized PTFE folding filter element
The filter element has the characteristics of high pressure resistance, high temperature, hydrophobicity and high density

II
Installation and configuration
1
  During installation, the pipes must be connected according to the air inlet and outlet labels on the filter
Otherwise, the reverse installation of the inlet and outlet will seriously affect the filtration effect
In order to facilitate use, replacement and maintenance, the filter should be installed according to the standard pipeline shown in the figure below

2
  Installation diagram of medical sterilization filter   (multiple vacuum pumps)  
 
3
  Installation diagram of medical sterilization filter (one for standby and one for use) (single vacuum pump)  
 
One for standby and one for use method a filter use ① Open valve A1 and A2, ② Close valve B1 B2 Z1 Z2, and switch to filter B when steam sterilization is required for filter a after 3 days of use ① Open B1, B2, ② Close A1, A2, ③ Open Z1 (steam valve) ④ and close Z1 20-30 minutes later
Switch AB filter in the same way and use it alternately
If the vacuum pump is overloaded, you can use both a and B filters ① at the same time Open valve A1 A2 B1 B2, ② Close Z1 Z2 valve
III   Characteristics of sterilizing filter
(1) the sterilization filter generally adopts the cross suspension type, with horizontal inlet and outlet
The multi-core filter can be designed as a floor type

(2) some applications are divided into pre filter and fine filter according to actual needs

(3) air flow direction: pass through the filter element from the outside to the inside
Please install it according to the direction of the arrow on the housing label

(4) the air entering the sterilization filter must first pass through the pressure stabilizing pre filter of the air tank, otherwise the service life of the sterilization filter element will be affected and the expected sterilization effect will not be achieved

(5) sterilize regularly
According to the actual use, sterilize with clean saturated steam 1~2 times a week for 30 minutes each time
Steam temperature ＜ 121 ℃, steam pressure ＜ 0
3MPa
The valve must be opened and closed slowly
The sterilization process must be supervised by a specially assigned person

(6) after 100 times of steam sterilization or when the pressure difference of the filter element reaches 0
07-1
0mpa, a new sterilizing filter element should be replaced

All sanitary filter cylinders are made of excellent 304 stainless steel
Each filter is made of strict material selection and careful manufacturing
It has a streamlined design without cracks, and has a good surface and large corrosion resistance, so as to meet the quality standard of preventing bacterial pollution and strictly meet the requirements of GMP standard

IV   Precautions for replacement of filter element (old filter element is infectious waste with high risk)
（1）  The filter element is a consumable
To ensure the filtering effect, please replace it every 3-6 months
　
（2）  Please replace the filter element by special personnel in the row, and do a good job in personal protection
Wear goggles, masks, protective clothing, etc
(refer to gb11651 specification for the selection of personal protective equipment)
It is recommended that the filter be sterilized with steam before replacement
If there is no steam, 75% ethanol can be injected into the filter and kept sterilized for half an hour

（3）  Irrelevant personnel are strictly prohibited from entering the site during replacement
After replacement, infectious sources may run out of the pipeline
Ultraviolet light and other methods are needed to disinfect the pump room space, and personnel are strictly prohibited from entering for a period of time

（4）  The old filter element should be treated harmlessly according to the relevant disposal requirements of infectious pollutants
It is strictly forbidden to throw it away at will

Hangzhou Jiajie Electromechanical Equipment Co
, Ltd
HANGZHOU JIAJIE MECHATRonICS DEVICE CO
，LTD
Address: No
1191, Linding Road, Jianggan District, Hangzhou (Building B, jiadewei Industrial Park)   Editor: 310021
Address network: http://www
chao-lv
com/ Person in charge: Zhu Xiaoping phone: 0571-28811100
True story: 0571-85142370  Manipulator: 13588388654 
Mail: jjzxp0707@163
com