CN217312641U

CN217312641U - Laboratory pure water case air breathing filter

Info

Publication number: CN217312641U
Application number: CN202221083548.3U
Authority: CN
Inventors: 欧明勋
Original assignee: Haisi Instrument Technology Shanghai Co ltd
Current assignee: Haisi Instrument Technology Shanghai Co ltd
Priority date: 2022-05-08
Filing date: 2022-05-08
Publication date: 2022-08-30
Anticipated expiration: 2032-05-08

Abstract

A laboratory pure water tank air breathing filter relates to the technical field of laboratory pure water tanks, solves the technical defects that the existing laboratory pure water tank used air breathing filter has poor filtering effect and affects the quality of pure water in the water tank, and comprises a shell, an upper breathing cover and a filler; the filler comprises an activated carbon fiber filter element arranged at the top layer, a soda lime filler layer filled in the middle layer and a folding filter element arranged at the bottom layer; an air breathing flow channel is formed between the outer wall of the folding filter element and the inner wall of the shell, a separation plate is arranged at the top end of the folding filter element, and an opening at the bottom end of the folding filter element is arranged corresponding to the installation interface of the shell. Has the functions of adsorbing most organic matters, purifying air, drying oxygen and absorbing carbon dioxide, and prevents particles and bacteria larger than 0.2 mu m from entering the water tank so as to ensure that the water quality of the pure water in the pure water tank cannot be rapidly reduced; also has the effects of dust prevention and water vapor prevention; the structure is reasonable, and the installation and maintenance are simple and convenient.

Description

Laboratory pure water case air respiration filter

Technical Field

The utility model belongs to the technical field of laboratory pure water case technique and specifically relates to be used for protecting in the laboratory pure water case in the air breathing filter aspect of pressure balance structural improvement.

Background

The water quality of pure water stored in the pure water tank of the laboratory is basically about 10-15M omega cm, the pure water is used for experiments, when the pure water enters the water tank, the water tank needs to breathe, carbon dioxide, suspended impurities and bacteria in the air can enter the water tank, the pure water in the water tank is polluted, and the water quality is reduced to influence the experiment progress. The filler of the traditional water tank filter is granular activated carbon and a PP cotton filter element, so that only impurities can be filtered and a small part of organic matters can be adsorbed, and the filtering cannot be realized aiming at oxygen, carbon dioxide, inorganic matters and most organic matters in the air, so that the quality of pure water in the water tank is rapidly reduced.

SUMMERY OF THE UTILITY MODEL

To sum up, the utility model discloses an it is poor to solve the air breathing filter effect that current laboratory pure water case used, influences the technique of pure water quality of water in the water tank not enough, and provides a laboratory pure water case air breathing filter.

For solving the technical problem of the utility model, the technical scheme of adoption is:

a laboratory pure water box air breathing filter comprises a shell, an upper breathing cover and a filler; the filler is arranged in a cavity formed by the shell and the upper breathing cover; the bottom of the shell is provided with an installation interface; the upper breathing cover is provided with a breathing hole; the method is characterized in that: the filler comprises an activated carbon fiber filter element which is arranged on the top layer and used for adsorbing organic matters and purifying air, a soda lime filler layer which is filled in the middle layer and used for drying oxygen and absorbing carbon dioxide to prevent pure water in the water tank from contacting with carbon dioxide in the air to cause water quality reduction, and a folding filter element which is arranged on the bottom layer and used for preventing suspended impurities and bacteria from entering the pure water tank along with the air and preventing water vapor in the water tank from exhaling out of the water tank; folding filter core be cylindric, the diameter is less than the casing internal diameter, is formed with the air breathing runner between folding filter core outer wall and shells inner wall, folding filter core top portion is equipped with the division board, folding filter core bottom opening sets up with the casing installation interface is corresponding.

As to the technical scheme of the utility model for further limiting includes:

the shell installation interface is provided with external threads and is sleeved with an O-shaped sealing ring.

The soda lime packing layer is packaged in the breathable packing layer.

The shell is made of transparent materials.

The utility model has the advantages that: the utility model is applied to the air breathing filtration of a pure water tank in a laboratory, filters all the gases entering and exiting the pure water tank, has the functions of adsorbing most organic matters, purifying air, drying oxygen and absorbing carbon dioxide, and prevents particulate matters and bacteria larger than 0.2 mu m from entering the water tank so as to ensure that the quality of the pure water in the pure water tank cannot be rapidly reduced; also has the effects of dust prevention and water vapor prevention; the structure is reasonable, and the installation and maintenance are simple and convenient.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the present invention.

In the figure: 1. the air breathing device comprises a shell, 2 parts of an upper breathing cover, 3 parts of an activated carbon fiber filter element, 4 parts of a soda lime filler layer, 5 parts of a folding filter element, 6 parts of a shell mounting interface, 7 parts of an O-shaped ring, 8 parts of an isolation plate and 9 parts of an air breathing flow channel.

Detailed Description

The structure of the present invention will be further described with reference to the accompanying drawings and preferred embodiments of the present invention.

Referring to fig. 1, the utility model discloses a pure water box air breathing filter for laboratory, which comprises a shell 1, an upper breathing cover 2 and a filler. Casing 1 and last breathing are connected through the hot melt mode between the lid 2, and casing 1's bottom is equipped with and to install in the shell mounting interface 6 at laboratory pure water tank top, for the convenience of the periodic packing inefficacy the utility model discloses, the shell mounting interface be equipped with the external screw thread, cup jointed O type sealing washer 7 on the shell mounting interface 6, screw thread structure cooperation O type sealing washer 7 is convenient for change to and inseparabler sealed air that prevents gets into the water tank from the screw thread. The filler is arranged in a cavity formed by the shell 1 and the upper breathing cover 2, and the upper breathing cover is provided with a breathing hole.

The filler comprises an activated carbon fiber filter element 3 arranged at the top layer, a soda lime filler layer 4 arranged at the middle layer and a folding filter element 5 at the bottom layer.

The activated carbon fiber filter element 3 is mainly used for adsorbing organic matters and purifying air.

The soda lime packing layer 4 in the middle layer is mainly used for drying oxygen and absorbing carbon dioxide to prevent water quality from being reduced due to the fact that pure water in the water tank is in contact with carbon dioxide in the air, the shell 1 is preferably made of transparent materials, the color of the soda lime packing layer 4 can be checked through the shell 1, and the service life of the soda lime packing layer is judged according to the color change degree of the soda lime; can be replaced in time before the soda lime packing layer 4 fails. The soda lime packing layer 4 is packaged in the breathable packing layer.

The folding filter element 5 at the bottom layer is also a cylindrical PP (polypropylene) dissolved spray filter element made of a main material and used for preventing suspended impurities and bacteria from entering the pure water tank along with air and preventing water vapor in the water tank from flowing out of the water tank; the diameter of the folding filter element 5 is smaller than the inner diameter of the shell 1, and an air breathing flow passage 9 is formed between the folding filter element 5 and the inner wall of the shell 1; the top end of the folding filter element 5 is provided with a separation plate 8, and the bottom end opening of the folding filter element 5 is arranged corresponding to the shell installation interface 6. The division board 8 makes laboratory pure water case air respiration's air circulate from folding filter core 5 runner all around, the utility model discloses folding filter core 5 flux filters more fully greatly.

The foregoing detailed description is given by way of example only, and is provided to better enable one skilled in the art to understand the patent, and is not intended to limit the scope of the patent; any equivalent alterations or modifications made according to the spirit of the present disclosure are intended to be included in the scope of the present disclosure.

Claims

1. A laboratory pure water box air breathing filter comprises a shell, an upper breathing cover and a filler; the filler is arranged in a cavity formed by the shell and the upper breathing cover; the bottom of the shell is provided with an installation interface; the upper breathing cover is provided with a breathing hole; the method is characterized in that: the filler comprises an activated carbon fiber filter element which is arranged on the top layer and used for adsorbing organic matters and purifying air, a soda lime filler layer which is filled in the middle layer and used for drying oxygen and absorbing carbon dioxide to prevent pure water in the water tank from contacting with carbon dioxide in the air to cause water quality reduction, and a folding filter element which is arranged on the bottom layer and used for preventing suspended impurities and bacteria from entering the pure water tank along with the air and preventing water vapor in the water tank from exhaling out of the water tank; folding filter core be cylindric, the diameter is less than the casing internal diameter, is formed with the air breathing runner between folding filter core outer wall and shells inner wall, folding filter core top portion is equipped with the division board, folding filter core bottom opening sets up with the casing installation interface is corresponding.

2. The pure water tank air breathing filter for laboratory according to claim 1, characterized in that: the shell installation interface is provided with external threads and is sleeved with an O-shaped sealing ring.

3. The pure water tank air breathing filter for laboratory according to claim 1, characterized in that: the soda lime packing layer is packaged in the breathable packing layer.

4. The pure water tank air breathing filter for laboratory according to claim 1, characterized in that: the shell is made of transparent materials.