CN218131957U

CN218131957U - Aerosol test chamber convenient to it is clean

Info

Publication number: CN218131957U
Application number: CN202222772223.2U
Authority: CN
Inventors: 樊晓翠; 徐存强; 王炳祺; 郭波; 安丰柱; 许爱华; 陈璐; 王浩; 宋大伟; 秦丹; 徐荆; 郭亮; 崔震; 张守忠; 王云
Original assignee: Shandong Institute of Metrology
Current assignee: Shandong Institute of Metrology
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2022-12-27
Anticipated expiration: 2032-10-20

Abstract

The utility model relates to an aerosol test chamber convenient to clean, which belongs to the technical field of aerosol detection, and the key point of the technical scheme is that the aerosol test chamber comprises a chamber body and a circulating fan, wherein the air inlet end of the circulating fan is connected with an air inlet pipe, and the air outlet end of the circulating fan is connected with an air outlet pipe; the air inlet pipe and the air outlet pipe are respectively communicated with the cabin body; the air outlet pipe is communicated with a dust exhaust pipe; a particle filter for filtering solid particles is arranged at the end part of the dust exhaust pipe; the dust exhaust pipe is provided with a dust exhaust switch valve for controlling the on-off of air flow; a circulating switch valve for controlling the on-off of the air flow is arranged on the air outlet pipe; the cabin body is provided with a cleaning pipe communicated with the outside; a cleaning switch valve for controlling the on-off of air flow is arranged on the cleaning pipe; the utility model discloses can convenient and fast clean cabin internal portion.

Description

Aerosol test chamber convenient to it is clean

Technical Field

The utility model relates to an aerosol detection device technical field especially relates to an aerosol test chamber convenient to it is clean.

Background

Pathogenic microorganisms are mostly dispersed in the environment in the form of aerosol, and the collection, monitoring, early warning and detection of bioaerosol are important parts for dealing with sudden biological safety threats, so that the method has great practical application requirements. At present, various biological aerosol samplers are available in the market, including an anderson sampler, an impact sampler, a virtual impact sampler, a cyclone sampler and the like; the monitor has ultraviolet induced fluorescence monitoring equipment and the like, and is applied. As most of the application scenes of the equipment are microorganism collection, a relatively safe test cabin is needed to test the performance requirements of related instruments.

The structure of the existing aerosol test cabin can refer to the Chinese utility model patent document with the authorization publication number of CN201912942U, which discloses a microenvironment closed cabin of aerosol. The utility model discloses an airtight cabin of microenvironment of aerosol, be equipped with the cabin body of a wind gap and an air intake on the wall, airtight cabin of microenvironment is still including setting up the gaseous power device that is used for gathering the wind regime and makes the internal gas flow of cabin in the external cabin.

Solid particles in aerosol in the aerosol test chamber are easy to adhere to the inner wall of the chamber body and other accessories in contact with the inside of the chamber body under long-time precipitation, so that the accuracy of the next experiment is easy to influence and the aging of devices is accelerated. At present, in a common cleaning mode, steam or water is cleaned in a cabin body, and after the water is discharged, drying treatment is carried out, so that the operation is complex, and the cleaning efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an aerosol test chamber convenient to it is clean, can convenient and fast clean the internal portion of cabin.

The above technical purpose of the present invention can be achieved by the following technical solutions: an aerosol test chamber convenient to clean comprises a chamber body and a circulating fan, wherein an air inlet end of the circulating fan is connected with an air inlet pipe, and an air outlet end of the circulating fan is connected with an air outlet pipe; the air inlet pipe and the air outlet pipe are respectively communicated with the cabin body; the air outlet pipe is communicated with a dust exhaust pipe; a particle filter for filtering solid particles is arranged at the end part of the dust exhaust pipe; the dust exhaust pipe is provided with a dust exhaust switch valve for controlling the on-off of air flow; a circulating switch valve for controlling the on-off of the air flow is arranged on the air outlet pipe; the cabin body is provided with a cleaning pipe communicated with the outside; and a cleaning switch valve for controlling the on-off of the air flow is arranged on the cleaning pipe.

According to the technical scheme, when the aerosol test chamber is used for testing, the cleaning switch valve and the dust exhaust switch valve are closed, the circulating switch valve is opened, the circulating fan is started, so that aerosol gas in the chamber body is subjected to negative pressure circulation under the action of the circulating fan, and the aerosol in the chamber body is not easy to overflow to the outside of the chamber body from a gap of the chamber body when the aerosol in the chamber body is tested; after the aerosol test is completed by using the aerosol test chamber, the cleaning switch valve and the dust exhaust switch valve are opened, the circulating switch valve is closed, and the outside air is pumped into the chamber body from the cleaning pipe under the action of the circulating fan, so that the inside of the chamber body can be cleaned efficiently.

Preferably, the cleaning pipe is provided with a one-way valve which enables gas to pass from the outside of the cabin body to the inside of the cabin body in a one-way mode.

Through the technical scheme, the one-way valve is arranged on the cleaning pipe, so that the aerosol in the cabin body cannot escape to the outside of the cabin body from the cleaning pipe under the condition that the cleaning switch valve is opened.

Preferably, the cabin comprises a base and a cover detachably connected with the base.

Through above-mentioned technical scheme, through with the cabin body split be detachable base and cover body, and then through dismantling the cover body and base, and then can be more thorough clean the cabin body inside.

Preferably, a positioning ring plate is fixed on the peripheral wall of the lower part of the cover body, a connecting sealing gasket is fixed on the lower part of the positioning ring plate, and the positioning ring plate is connected with the base through bolts.

Through the technical scheme, the positioning ring plate is arranged at the lower part of the cover body, and then the positioning ring plate is connected to the base through bolts, so that the cover body can be conveniently and quickly fixedly connected with the base.

Preferably, the upper part of the base is provided with a positioning ring groove for positioning the cover body, and the cover body is inserted into the positioning ring groove; and a sealing rubber pad is fixed on the peripheral wall of the positioning ring groove.

Through above-mentioned technical scheme, through offering the positioning ring groove on base upper portion, insert the positioning ring groove through the cover body, the laminating of sealing rubber pad is in the both sides of the cover body, and then can improve the connection leakproofness between the cover body and the base.

Preferably, an ultraviolet spot lamp is arranged in the cabin body.

Through above-mentioned technical scheme, through setting up the ultraviolet ray shot-light in the cabin body, and then shine the cabin body in through the ultraviolet ray shot-light to can convenient and fast disinfect in the cabin body.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic diagram of an aerosol test chamber for easy cleaning.

Fig. 2 is a schematic structural view showing the internal structure of the cabin.

Wherein, 1, a cabin body; 11. a base; 111. a positioning ring groove; 12. a cover body; 121. an operation port; 122. a sampling port; 13. sealing the rubber pad; 14. positioning the ring plate; 15. connecting a sealing gasket; 16. an operating door; 2. a circulating fan; 3. an air inlet pipe; 4. an air outlet pipe; 41. a circulation on-off valve; 5. a dust exhaust pipe; 51. a dust discharge switch valve; 6. cleaning the tube; 61. cleaning the switch valve; 62. a one-way valve; 7. a particulate filter; 8. an ultraviolet ray spot lamp.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that, as used herein or in the following description, the terms "front," "rear," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions that face away from the geometric center of a particular component, respectively.

The embodiment is as follows:

an aerosol test chamber convenient for cleaning, referring to fig. 1 and 2, comprises a chamber body 1 and a circulating fan 2. The cabin 1 comprises a base 11 and a cover 12 detachably connected to the base 11. The cover 12 is mounted on the upper portion of the base 11, and the cover 12 is usually made of transparent acrylic or PC material. The cover 12 has an operation port 121 and a sampling port 122. An operation door 16 for closing the operation opening 121 is provided at the operation opening 121. In daily operations, the corresponding instruments are placed into the cabin 1 or the instruments in the cabin 1 are taken out of the cabin 1 by opening the operation door 16. An ultraviolet spot lamp 8 is fixed to an upper portion of the interior of the cover body 12, and the interior of the cabin 1 can be disinfected by ultraviolet rays by turning on the ultraviolet spot lamp 8.

Referring to fig. 1 and 2, a positioning ring groove 111 for positioning the cover body 12 is formed at the upper part of the base 11, and the cover body 12 is inserted into the positioning ring groove 111; a sealing rubber gasket 13 is fixed to the peripheral wall of the positioning ring groove 111. A positioning ring plate 14 is fixed on the peripheral wall of the lower part of the cover body 12, a connecting sealing gasket 15 is fixed on the lower part of the positioning ring plate 14, and the positioning ring plate 14 is connected with the base 11 through bolts. By bolting the retaining ring plate 14 to the base 11. When the cover body 12 is attached, the lower portion of the cover body 12 is inserted into the positioning ring groove 111, the positioning ring plate 14 is pressed against the base 11, and the positioning ring plate 14 is fixed to the base 11 by bolting. By the fitting of the sealing rubber gasket 13 to the peripheral wall of the cover body 12 and the fitting of the connecting gasket 15 to the base 11, a double-layer seal is formed between the cover body 12 and the base 11, so that the cover body 12 and the base 11 have excellent sealing performance.

Referring to fig. 1 and 2, an air inlet end of a circulating fan 2 is connected with an air inlet pipe 3, and an air outlet end of the circulating fan 2 is connected with an air outlet pipe 4; the air inlet pipe 3 is connected to the upper portion of the cover 12 and further communicated with the interior of the cabin 1. The air outlet pipe 4 is connected to the lower position of the base 11 and is communicated with the inside of the cabin 1. The air outlet pipe 4 is communicated with a dust exhaust pipe 5; a particle filter 7 for filtering solid particles is arranged at the end part of the dust exhaust pipe 5; the dust exhaust pipe 5 is provided with a dust exhaust switch valve 51 for controlling the on-off of the air flow. The air outlet pipe 4 is provided with a circulating switch valve 41 for controlling the on-off of the air flow. The lower part of the base 11 is provided with a cleaning pipe 6 communicated with the interior of the cabin 1. The cleaning pipe 6 is provided with a cleaning switch valve 61 for controlling the on-off of the air flow. The cleaning pipes are provided with one-way valves 62 for allowing gas to pass from the outside of the chamber 1 to the inside of the chamber 1 in one way. When the aerosol test chamber is used for testing, the cleaning switch valve 61 and the dust discharge switch valve 51 are closed, the circulating switch valve 41 is opened, and the circulating fan 2 is started, so that the aerosol gas in the chamber body 1 is subjected to negative pressure circulation under the action of the circulating fan 2, and the aerosol in the chamber body 1 is difficult to overflow to the outside of the chamber body 1 from a gap of the chamber body 1 during testing; after the aerosol test is completed by using the aerosol test chamber, the cleaning switch valve 61 and the dust exhaust switch valve 51 are opened, the circulating switch valve 41 is closed, and the outside air is pumped into the chamber body 1 from the cleaning pipe 6 under the action of the circulating fan 2, so that the inside of the chamber body 1 can be cleaned efficiently.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. An aerosol test chamber convenient to clean comprises a chamber body (1) and a circulating fan (2), wherein an air inlet end of the circulating fan (2) is connected with an air inlet pipe (3), and an air outlet end of the circulating fan (2) is connected with an air outlet pipe (4); the air inlet pipe (3) and the air outlet pipe (4) are respectively communicated with the cabin body (1); the method is characterized in that: the air outlet pipe (4) is communicated with a dust exhaust pipe (5); a particle filter (7) for filtering solid particles is arranged at the end part of the dust exhaust pipe (5); a dust exhaust switch valve (51) for controlling the on-off of the air flow is arranged on the dust exhaust pipe (5); a circulating switch valve (41) for controlling the on-off of the air flow is arranged on the air outlet pipe (4); the cabin body (1) is provided with a cleaning pipe (6) communicated with the outside; and a cleaning switch valve (61) for controlling the on-off of the air flow is arranged on the cleaning pipe (6).

2. An aerosol test chamber for facilitating cleaning according to claim 1, wherein: the cleaning pipe is provided with a one-way valve (62) which enables gas to pass from the outside of the cabin body (1) to the inside of the cabin body (1) in a one-way.

3. An aerosol test chamber for facilitating cleaning according to claim 1, wherein: the cabin body (1) comprises a base (11) and a cover body (12) detachably connected with the base (11).

4. An aerosol test chamber as claimed in claim 3, wherein: a positioning ring plate (14) is fixed on the peripheral wall of the lower part of the cover body (12), a connecting sealing gasket (15) is fixed on the lower part of the positioning ring plate (14), and the positioning ring plate (14) is in bolt connection with the base (11).

5. An aerosol test chamber for facilitating cleaning according to claim 3, wherein: a positioning ring groove (111) used for positioning the cover body (12) is formed in the upper portion of the base (11), and the cover body (12) is inserted into the positioning ring groove (111); and a sealing rubber gasket (13) is fixed on the peripheral wall of the positioning ring groove (111).

6. An aerosol test chamber as claimed in claim 1, wherein: an ultraviolet spot lamp (8) is arranged in the cabin body (1).