阅读说明：本技术 一种气溶胶颗粒吸附净化离心机 (Aerosol particle adsorption purification centrifuge ) 是由 顾兵 胡珊 毛佩 康海全 李锐 于 2020-06-29 设计创作，主要内容包括：本发明涉及一种气溶胶颗粒吸附净化离心机,包括离心机外壳、离心机内胆、转鼓、转子电机、鼓气风机、鼓气风道、排气风机、排气风道、HEPA过滤网。离心机外壳、离心机内胆、转鼓、转子电机组成离心机主要工作结构,实现离心功能；鼓气风机、鼓气风道、排气风机、排气风道、HEPA过滤网组成气溶胶颗粒吸附净化模块,实现对离心机内的气溶胶颗粒吸附净化的功能。本发明提供设计科学合理,操作简便,通过各风机、各风道、HEPA过滤网的配合工作能够在保证安全的基础上将离心机内空气完全抽出净化,实现对气溶胶颗粒的全吸附,可以很好地满足实际应用的需要。(The invention relates to an aerosol particle adsorption purification centrifuge which comprises a centrifuge shell, a centrifuge inner container, a rotary drum, a rotor motor, an air blowing fan, an air blowing air duct, an exhaust fan, an exhaust air duct and a HEPA filter screen. The centrifuge shell, the centrifuge inner container, the rotary drum and the rotor motor form a main working structure of the centrifuge to realize the centrifugation function; the air blowing fan, the air blowing air duct, the exhaust fan, the exhaust air duct and the HEPA filter screen form an aerosol particle adsorption purification module, and the function of adsorbing and purifying aerosol particles in the centrifugal machine is realized. The invention has scientific and reasonable design and simple and convenient operation, can completely pump out and purify the air in the centrifuge on the basis of ensuring safety through the matching work of each fan, each air duct and the HEPA filter screen, realizes the full adsorption of aerosol particles, and can well meet the requirement of practical application.)

1. An aerosol particle adsorption purification centrifuge comprises a centrifuge shell and a centrifuge inner container erected on the centrifuge shell, and is characterized in that an external cavity for accommodating a rotor motor is formed between the centrifuge shell and the centrifuge inner container, and a rotor motor transmission rod extends into the inner container through a hole located in the center of the bottom of the inner container and is connected with a rotary drum arranged at the end part of the transmission rod;

the inner container is characterized in that the side wall and the bottom of the inner container are both provided with air blowing air ports and connected with an air blowing fan in the external cavity through air blowing air channels, an exhaust air port is arranged on a centrifuge cover on the upper part of the inner container, and an HEPA filter is arranged on the outer side of the exhaust air port and connected with the exhaust fan in the external cavity through the exhaust air channels.

2. The aerosol particle adsorption purification centrifuge of claim 1, wherein the inner container is coupled to the centrifuge housing at the mouth of the inner chamber, such that the inner container is entirely suspended.

3. The aerosol particle adsorption purification centrifuge of claim 1, wherein two air blowers are disposed in the outer chamber, the air blowing port on the sidewall of the inner container is connected to one of the air blowers through an air blowing duct disposed in the side outer chamber, and the air blowing port on the bottom of the inner container is connected to the other air blower through an air blowing duct.

4. The aerosol particle adsorbing and purifying centrifuge of claim 1, wherein the filter unit of the HEPA filter is comprised of laminated borosilicate glass fibers.

5. The aerosol particle adsorbing and purifying centrifuge of claim 1, wherein the centrifuge housing is provided with an air inlet for air suction of the air blower; and the exhaust air port is also arranged and is connected with the exhaust fan through an exhaust air duct.

6. The aerosol particle adsorption purification centrifuge of claim 1, wherein the main body of the air blowing duct and the air exhaust duct is a PU tube.

7. The aerosol particle adsorption purification centrifuge of claim 1, wherein the lid opening of the centrifuge lid is provided with a sealing rubber ring to ensure that the centrifuge liner space does not directly contact with the outside atmosphere.

Technical Field

The invention belongs to the technical field of blood sample pretreatment equipment, and particularly relates to an aerosol particle adsorption purification centrifuge.

Background

Bacterial, fungal, viral infections have been an important part of the threat to human health. Laboratory diagnosis is a major method for diagnosing these infectious disease pathogens in hospitals, and medical examiners play a crucial role. However, many of these pathogens are transmitted by aerosols, and the centrifuge of a hospital laboratory is a concern that aerosol generation can lead to infection of the laboratory personnel. Therefore, the invention of the aerosol adsorption purification centrifuge is applied to the clinical laboratory to protect the safety of clinical laboratory workers and is of great importance.

Disclosure of Invention

In view of the above problems in the prior art, the present invention is directed to an aerosol particle adsorption purification centrifuge that avoids the above disadvantages.

In order to achieve the above object, the present invention provides the following technical solutions:

an aerosol particle adsorption purification centrifuge comprises a centrifuge shell and a centrifuge inner container erected on the centrifuge shell, wherein an external cavity for accommodating a rotor motor is formed between the centrifuge shell and the centrifuge inner container, and a rotor motor transmission rod extends into the inner container through a hole positioned in the center of the bottom of the inner container and is connected with a rotary drum arranged at the end part of the transmission rod;

the inner container is characterized in that the side wall and the bottom of the inner container are both provided with air blowing air ports and connected with an air blowing fan in the external cavity through air blowing air channels, an exhaust air port is arranged on a centrifuge cover on the upper part of the inner container, and an HEPA filter is arranged on the outer side of the exhaust air port and connected with the exhaust fan in the external cavity through the exhaust air channels.

Furthermore, the inner container is coupled with the shell of the centrifuge at the opening of the inner cavity, so that the whole inner container is in a suspended state.

Furthermore, two air blowing fans are arranged in the outer cavity, an air blowing air port in the side wall of the inner container is connected to one of the air blowing fans through an air blowing air channel erected in the outer cavity on the side edge, and an air blowing air port in the bottom of the inner container is connected to the other air blowing fan through the air blowing air channel.

Further, the filtering unit of the HEPA filter is composed of laminated borosilicate glass fibers.

Further, an air inlet is formed in the shell of the centrifugal machine and used for air suction of the air blowing fan; and the exhaust air port is also arranged and is connected with the exhaust fan through an exhaust air duct.

Furthermore, the main bodies of the air blowing duct and the exhaust duct are PU pipes.

Furthermore, a sealing rubber ring is arranged at the cover opening of the centrifuge cover, so that the space of the inner container of the centrifuge is not in direct contact with the external atmosphere.

Compared with the prior art, the aerosol particle adsorption purification centrifuge provided by the invention has the advantages that the design is scientific and reasonable, the operation is simple and convenient, the air in the centrifuge can be completely pumped out and purified on the basis of ensuring the safety through the matching work of each fan, each air duct and the HEPA filter, the full adsorption of aerosol particles is realized, the filtering efficiency is up to 99.99%, and the requirement of practical application can be well met.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of a centrifuge cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, an aerosol particle adsorption purification centrifuge is divided into two working systems: a centrifugal system and an aerosol particle adsorption purification system. The centrifugal system comprises a centrifugal machine shell 1, a centrifugal machine inner container 2, a rotor motor 3 and a rotary drum 5. The aerosol particle adsorption and purification system comprises a FH50-B-13L-30 miniature centrifugal blower 6, an LH-50S pipeline fan 7, a HEPA filter, an air blowing air duct 11 consisting of a PU air pipe and an exhaust air duct 12.

The inner space of the centrifugal system is divided into an inner cavity and an outer cavity by combining the outer shell 1 of the centrifugal machine and the inner container 2 of the centrifugal machine. The inner cavity mainly comprises a transmission rod 4 of a rotor motor 3 and two pairs of rotary drums 5 connected to the transmission rod 4, the inner container 2 is coupled with the centrifuge shell 1 at the opening of the inner cavity, so that the whole inner container 2 is in a suspended state, and the lower half part of the centrifuge shell 1 and gaps of about 50mm around the centrifuge shell 1 and the inner container 2 are reserved as outer cavities. The lower half part of the outer cavity mainly contains a rotor motor 3 for providing power for centrifugation, two air blowing fans 6, an exhaust fan 7 and PU pipes forming an air blowing air duct 11 and an exhaust air duct 12.

The aerosol particle adsorption purification system is mainly positioned in an outer cavity and consists of two air blowing fans 6, an exhaust fan 7, a HEPA filter, an air blowing air duct 11 and an exhaust air duct 12. FH50-B-13L-30 is a nearly circular miniature centrifugal air blower with a diameter of about 50mm, a thickness of 20 mm, a power supply of 12V DC voltage, a rated power of 4.2W and an air volume of 0.3m³And/min, the wind pressure is 150kPa, and air is blown into the cavity from the periphery and the lower part through the air blowing air duct 11. The LH-50S exhaust fan is a cylindrical pipeline exhaust fan, the length of the column is 100mm, the sectional area of the column is 50mm, the power is supplied by using 12V direct current voltage, the rated power is 6W, and the air volume is 0.6m³And/min, the air pressure is 330kPa, the air in the inner cavity is pumped into a HEPA filter for filtering through the front half part of the exhaust air duct 12, and finally the air is exhausted to the atmosphere through the rear exhaust air duct 12. The HEPA filter is a disposable dry type high-efficiency air filter, is made of laminated borosilicate microfiber, has an adsorption efficiency of 97% on aerosol particles with a diameter of more than 0.3 μm in air, and is directly 50mm by using a circular HEPA filter in the embodiment. The air blowing air duct 11 and the exhaust air duct 12 mainly use PU pipes with the inner diameter of 4mm and the outer diameter of 6mm, the use bursting pressure is greater than 1MPa, and the HEPA filter is positioned at the front end of the exhaust air duct and used for adsorbing and purifying air containing aerosol particles.

Two air blowing fans 6 and an exhaust fan 7 are paved at the bottom of the outer cavity. Four air blowing air ports 8 are formed in the side wall of the inner container of the centrifuge, two air blowing air ports 8 with symmetrical circle centers are formed right below the inner container, each air blowing air port is a six-hole air port, the rear portion of each air port is in a horn-shaped design and is connected to an air blowing air duct 11PU pipe, and the PU pipe is arranged on the peripheral gap of the outer cavity and is finally connected to two air blowing fans 6. Two air blowing air ports 8 at the bottom of the inner container 2 are blown by one air blowing fan, and the air blowing air ports 8 of the side wall fan are supplied by the other air blowing fan 6, so that a strong ascending air flow is finally formed. The centrifuge housing 1 is provided with an air inlet 13 for the suction of the blower 6.

Four exhaust air ports 10 are symmetrically arranged on the inner surface of an upper cover 9 of the centrifuge in a circle center mode, the exhaust air ports 10 are six air ports, a HEPA filter (not shown in the figure) is fixed behind each air port, the air ports are in a horn-shaped design and are connected to PU pipes of the exhaust air channels, PU pipe supports are arranged on peripheral gaps of an outer cavity and extend downwards, the PU pipe supports are finally connected to an air suction inlet of an exhaust fan 7, and an outlet of the exhaust fan 7 is connected to an air exhaust port 14 of a centrifuge shell 1. A circle of rubber ring is designed at the position of the 9 opening of the centrifuge cover, so that the space of the inner container 2 is not in direct contact with the atmosphere when the centrifuge works, and aerosol does not leak. The blowing and suction tuyeres are 50mm circular in shape as a whole, and each air hole in the tuyeres is 10mm circular.

Laboratory operating personnel uncap after with the sample balancing and start centrifugation, and rotary drum 5 rotates the centrifugation under rotor motor 3 drives, and air-blowing motor 6 and exhaust motor 7 begin work after the centrifugation finishes. Two air-blowing fans 6 are connected to 6 blast ports of 4 inner container side walls and 2 at the bottom through 6 PU pipes, and blast air into the inner container of the centrifuge. An exhaust fan is connected to 4 air suction ports 10 above the centrifuge cover through 4 PU pipes to start air suction, HEPA filters are respectively arranged on the 4 air suction ports 10, when air containing aerosol particles passes through the filters, the aerosol particles are adsorbed by the HEPA filters, and the purified air is exhausted to the atmosphere through an exhaust port 14 on the centrifuge shell 1 under the action of the exhaust fan 7. This process will last about 20s, can guarantee to adsorb the aerosol that produces in the centrifugation process completely, reaches the purpose to the air purification of centrifuge inner chamber, realizes preventing the function of aerosol loss.

The aerosol particle adsorption purification centrifuge provided by the invention has the advantages of scientific and reasonable design, simple and convenient operation, capability of completely adsorbing the aerosol generated in the centrifugation process, capability of completely purifying the air in the centrifuge on the basis of ensuring safety through the matching work of the air blowing fan, the exhaust fan and the HEPA filter, capability of preventing the dissipation of the aerosol, and capability of well meeting the requirements of practical application.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.