CN113144752A - Preparation method of special composite filter screen for air purification of train carriage - Google Patents
Preparation method of special composite filter screen for air purification of train carriage Download PDFInfo
- Publication number
- CN113144752A CN113144752A CN202110477439.3A CN202110477439A CN113144752A CN 113144752 A CN113144752 A CN 113144752A CN 202110477439 A CN202110477439 A CN 202110477439A CN 113144752 A CN113144752 A CN 113144752A
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- Prior art keywords
- filter screen
- train carriage
- preparation
- air purification
- carriage
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/10—Filter screens essentially made of metal
- B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0038—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions with means for influencing the odor, e.g. deodorizing substances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/045—Deodorising additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
A preparation method of a special composite filter screen for air purification of a train carriage relates to a preparation method of a front air purification filter screen of the train carriage, in particular to a preparation method of the front air purification filter screen which is suitable for sterilizing bacteria and viruses and filtering fine particles for installation and use in a high-speed train carriage. Placing a stainless steel air filter screen meeting the specification requirement of an air inlet of a train carriage in deionized water for ultrasonic cleaning and drying; dip-coating the nano-silver colloid solution; and (4) assembling the filter screen with an auxiliary part. The filter screen prepared by the method has the effects of killing bacteria and viruses, can be repeatedly used, can effectively deodorize and filter fine particles, and has a lasting effect. The nano silver on the surface of the filter screen has very high biological activity and also has strong decomposition effect on peculiar smell, particularly formaldehyde toxic and harmful gases.
Description
Technical Field
A preparation method of a special composite filter screen for air purification of a train carriage relates to a preparation method of a front air purification filter screen of the train carriage, in particular to a preparation method of the front air purification filter screen which is suitable for sterilizing bacteria and viruses and filtering fine particles for installation and use in a high-speed train carriage.
Background
At present, the scale of the Chinese high-speed rail stably occupies the world first, the China high-speed rail becomes the first choice for people to go out with rapidness and convenience, but the air quality in a carriage does not reach the standard, the health of passengers is harmed, railway departments often receive complaints of the passengers about the air quality of the carriage, and meanwhile, the carriages of a common train, a subway, an urban rail and a coach have the same air quality problem, so that the important schedule is provided for improving the air quality of the carriage. Air pollution in a carriage comes from multiple aspects, mainly including: people in the carriage are dense, and bacteria, viruses, body odor, breath odor, luggage peculiar smell and various meal odors are mixed together; volatile organic compounds (namely harmful substances such as TVOC) and the like continuously released by interior decoration materials of a carriage, hydraulic pipes, electric wires, cables and the like; when the air pollution outside the vehicle is serious, TVOC, sulfur dioxide, nitrogen oxide, PM2.5 haze particles and the like inevitably flow into the vehicle in the ventilation process. According to detection, pollution in a carriage is mainly caused by over standard TVOC and formaldehyde, wherein toluene accounts for 31.4248%, xylene accounts for 10.4103%, styrene accounts for 5.5346%, dimethyl-p-toluidine accounts for 0.8520%, and benzothiazole, acetophenone, undecane and the like are also contained, and volatile organic matters are very harmful to a human body. The prior art for purifying indoor air at home and abroad currently mainly adopts filter screens and activated carbon adsorption, can only adsorb particulate pollutants such as PM2.5, PM10 and the like, has short service life and high cost, and is easy to cause secondary pollution; in recent years, electrostatic dust removal technology is widely applied in the field of air purification, but the electrostatic dust removal technology is easy to generate ozone, high-concentration ozone can cause damage to human bodies, particle pollution can be only treated by the technology, harmful gases such as TVOC (total volatile organic compound) and the like cannot be treated, the installation and maintenance difficulty is high, and the technology is not suitable for being installed and used in train carriages. Therefore, at present, an air conditioning system is still frequently used in the train carriage of the high-speed train to adjust the temperature and humidity, and recently, a method for spraying negative ion liquid in the train carriage is also available, so that the volatilization of harmful substances such as TVOC, formaldehyde and the like is inhibited, and the effect is not ideal. Therefore, it is a very urgent subject to develop a new filter device capable of being installed and used in the air conditioning system of the carriage of the high-speed train and effectively removing bacteria, viruses and volatile organic compounds TVOC and formaldehyde.
The main performance and principle of the nano silver colloid are as follows: the nano silver colloid is prepared by using 99.99 percent of pure metallic silver through a special process and special equipment. The method is characterized in that: and (4) resisting bacteria. The nano silver colloid has unique sterilization function: a. Broad spectrum (can kill more than 650 germs and viruses); b. is safe and nontoxic; c. no drug resistance; d. long-acting; e. and (3) the speed is high. The application is as follows: the antibacterial agent has the advantages of strong and lasting sterilization, high sterilization rate of over 99.99 percent for escherichia coli, staphylococcus aureus, candida albicans, pseudomonas aeruginosa, bacillus subtilis, aspergillus niger and the like, safety, no irritation, low effective concentration, stable property, no corrosiveness and simple operation, is a novel antibacterial agent, and can be widely applied to sterilization and disinfection in industries such as medical equipment, public places, foods and the like. The national standard of nano silver colloidal solution, the standard number GB/T39630 one 2020 has been released in 2020, 12 months and 14 days. It will be administered at 2021, 07/01. The stainless steel filter screen comprises the following components in percentage by process: 1. and (5) spot-welding multiple layers of filter meshes. 2. And (5) multiple layers of edge-wrapped filter meshes. The stainless steel filter mesh is divided into the following parts according to the shape: rectangle, circle, ring, distance, waist, and special shape. The stainless steel filter mesh is divided into the following parts according to the structure: single-layer net, multi-layer composite filter net sheet and combined filter net sheet. The stainless steel filter mesh comprises the following layers: single layer, double layer, three layer, four layer, five layer, multilayer. The stainless steel filter mesh comprises the following main materials: stainless steel filter screen. (20-800 mesh).
Disclosure of Invention
The invention aims to innovatively develop a preparation method of a front-mounted filter screen installed and used in an air conditioning system of a train carriage. The nano silver on the surface of the filter screen has very high activity and also has strong decomposition effect on peculiar smell, particularly formaldehyde toxic and harmful gases.
The technical scheme of the invention is as follows: the preparation method of the special composite filter screen for air purification of the train compartment comprises the following steps: (1) placing a 50-400-mesh stainless steel air filter screen meeting the specification requirement of an air inlet of a train carriage in deionized water, performing ultrasonic cleaning for 6-15 min, taking out, placing in a drying oven, and drying at 50-65 ℃; (2) immersing the filter screen into a nano silver colloidal solution meeting the national standard requirement, soaking for 20-40 min, taking out the drained liquid, and placing the drained liquid in an oven for drying; and (3) assembling the dried filter screen with auxiliary parts.
The invention has the beneficial effects that: the filter screen prepared by the method can conveniently replace a filter screen in the existing air conditioning system of the carriage of the high-speed rail train, effectively remove bacteria, viruses and larger particle pollutants, kill the bacteria and the viruses by 99 percent, remarkably improve the air quality of the carriage of the train, solve the problem of air pollution in the carriages of the high-speed rail train, the common rail train, the subway train and the urban rail train, ensure that the air quality in the carriages meets the national standard requirement, and provide comfortable, safe and healthy riding environment for passengers.
Detailed Description
A preparation method of a special composite filter screen for air purification of a train carriage comprises the following steps: (1) placing a 50-400-mesh stainless steel air filter screen meeting the specification requirement of an air inlet of a train carriage in deionized water, performing ultrasonic cleaning for 6-15 min, taking out, placing in a drying oven, and drying at 50-65 ℃; (2) immersing the filter screen into a nano silver colloidal solution meeting the national standard requirement, soaking for 20-40 min, taking out the drained liquid, and placing the drained liquid in an oven for drying; and (3) assembling the dried filter screen with auxiliary parts.
The invention has the beneficial effects that: the filter screen prepared by the method has the effects of killing bacteria and viruses, can be repeatedly used, can effectively deodorize and filter fine particles, and has a lasting effect. The nano silver on the surface of the filter screen has very high biological activity and also has strong decomposition effect on peculiar smell, particularly formaldehyde toxic and harmful gases.
Claims (1)
1. A preparation method of a special composite filter screen for air purification of a train carriage is characterized by comprising the following steps: (1) placing a 50-400-mesh stainless steel air filter screen meeting the specification requirement of an air inlet of a train carriage in deionized water, performing ultrasonic cleaning for 6-15 min, taking out, placing in a drying oven, and drying at 50-65 ℃; (2) immersing the filter screen into a nano silver colloidal solution meeting the national standard requirement, soaking for 20-40 min, taking out the drained liquid, and placing the drained liquid in an oven for drying; and (3) assembling the dried filter screen with auxiliary parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110477439.3A CN113144752A (en) | 2021-04-30 | 2021-04-30 | Preparation method of special composite filter screen for air purification of train carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110477439.3A CN113144752A (en) | 2021-04-30 | 2021-04-30 | Preparation method of special composite filter screen for air purification of train carriage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113144752A true CN113144752A (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110477439.3A Pending CN113144752A (en) | 2021-04-30 | 2021-04-30 | Preparation method of special composite filter screen for air purification of train carriage |
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| CN (1) | CN113144752A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354048A (en) * | 2001-10-11 | 2002-06-19 | 复旦大学 | Method for preparing metal base nano oxide net |
| CN101669520A (en) * | 2009-04-03 | 2010-03-17 | 上海华实纳米材料有限公司 | Air conditioning filter screen bacteriostatic agent and preparation method thereof as well as preparation method of air conditioning filter screen |
| CN106552757A (en) * | 2016-11-30 | 2017-04-05 | 佛山市高明区诚睿基科技有限公司 | A kind of preparation method of anti-bacteria stainless steel part |
| CN108126461A (en) * | 2018-01-18 | 2018-06-08 | 北方民族大学 | A kind of net-filter assembly and clearing window |
| CN109316829A (en) * | 2018-11-07 | 2019-02-12 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of mould proof fungi-proofing hypo-allergenic anti-virus four-in-one air filtering material and products thereof and application |
-
2021
- 2021-04-30 CN CN202110477439.3A patent/CN113144752A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354048A (en) * | 2001-10-11 | 2002-06-19 | 复旦大学 | Method for preparing metal base nano oxide net |
| CN101669520A (en) * | 2009-04-03 | 2010-03-17 | 上海华实纳米材料有限公司 | Air conditioning filter screen bacteriostatic agent and preparation method thereof as well as preparation method of air conditioning filter screen |
| CN106552757A (en) * | 2016-11-30 | 2017-04-05 | 佛山市高明区诚睿基科技有限公司 | A kind of preparation method of anti-bacteria stainless steel part |
| CN108126461A (en) * | 2018-01-18 | 2018-06-08 | 北方民族大学 | A kind of net-filter assembly and clearing window |
| CN109316829A (en) * | 2018-11-07 | 2019-02-12 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of mould proof fungi-proofing hypo-allergenic anti-virus four-in-one air filtering material and products thereof and application |
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