CN111482005A - Filter screen for purifying air of house fresh air system and preparation method - Google Patents
Filter screen for purifying air of house fresh air system and preparation method Download PDFInfo
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- CN111482005A CN111482005A CN202010304881.1A CN202010304881A CN111482005A CN 111482005 A CN111482005 A CN 111482005A CN 202010304881 A CN202010304881 A CN 202010304881A CN 111482005 A CN111482005 A CN 111482005A
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- air
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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
- 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
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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
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/50—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning
Abstract
The invention provides a filter screen for purifying air of a house fresh air system and a preparation method thereof, wherein the filter screen comprises a base material and an air refreshing coating coated on the base material, the base material is a filter screen with a plain weave structure woven by polymer fibers, and the air refreshing coating is prepared by spraying emulsion prepared by adding activated carbon powder, tea stalk powder, high polyiodide powder, a surfactant and a binder into water on the base material. The air refreshing coating of the air conditioner filter screen provided by the invention contains the tea stems with high adsorbability, the tea stems can permanently give out light fragrance, the air refreshing coating has a good air refreshing effect, the raw material sources are rich, the price is low, the air conditioner filter screen is very healthy and environment-friendly, compared with an air freshener and the like, the air conditioner filter screen does not produce secondary pollution, and the filter screen can effectively control the breeding of bacteria by utilizing the high adsorbability of active carbon and the efficient sterilization and disinfection effect of high iodine.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a filter screen for purifying air of a house fresh air system and a preparation method thereof.
Background
Air conditioning is a process of adjusting and controlling parameters such as temperature, humidity, cleanliness, speed, etc. of ambient air in a building/structure by an artificial means, which is a conditioning apparatus for conditioning indoor air and temperature. Generally comprises a cold source/heat source device, a cold and hot medium delivery and distribution system, a terminal device and other auxiliary devices. Mainly comprises a water pump, a fan and a pipeline system. The end device is responsible for specifically processing air by utilizing the cold and heat quantity from the transmission and distribution to ensure that the air parameters of the target environment meet the requirements.
At present, along with the improvement of the living standard of people, the air conditioner is widely used in daily life and workplaces of people. When the indoor temperature is regulated, heated or cooled air enters the room through a filter screen. The filter screen is an important part of the air conditioner and determines the performance of the air conditioner for improving the air quality to a great extent.
The air conditioner filter screen mainly functions in intercepting dust, suspended particles and the like in air and preventing the substances from entering the interior of the machine body to influence air heat exchange. However, as the requirement of people on indoor air quality is higher and higher, the performance requirement on the air conditioner filter screen is higher, and the existing air conditioner filter screen not only has the dustproof effect, but also has the effects of disinfecting, sterilizing, absorbing formaldehyde and purifying air. However, these are all passive absorbing substances such as dust or formaldehyde in the air, and cannot actively release some beneficial ions or molecules, and thus do not have the air freshening effect. Therefore, research on new types of air filters is receiving attention.
The Chinese patent application number 201710412470.2 discloses a multifunctional filter screen material for an air conditioner internal unit, which comprises the following raw materials in parts by weight: 4-6 parts of heat conduction additive, 10-15 parts of 40% nano titanium dioxide aqueous dispersion, 50-60 parts of epoxy resin, 1-5 parts of poly-1, 4-diphenyldiacetylene, 8-14 parts of processing aid, 6-9 parts of natural bactericidal extract and 30-40 parts of activated carbon fiber; the multifunctional filter screen material for the air conditioner indoor unit has the functions of filtration, bacteriostasis, sterilization and formaldehyde removal. The Chinese patent application No. 201610487200.3 discloses a multifunctional attapulgite air conditioner filter screen, which comprises a frame and a filter screen, wherein the frame is of a two-layer grid frame structure, an interlayer is formed between the two grid frames, the filter screen is arranged in the interlayer, and the filter screen is made of a mixture of nano-scale titanium dioxide powder and attapulgite, wherein the titanium dioxide is used for catalyzing the attapulgite to degrade harmful gases such as formaldehyde in the air, and the attapulgite is used for absorbing and degrading the harmful gases such as formaldehyde.
In order to provide the air conditioning filter screen with the functions of dust prevention, sterilization, disinfection and the like and simultaneously provide the filter screen with the air refreshing effect, a novel air conditioning filter screen is needed to be provided, so that the air conditioning filter screen has the air refreshing function.
Disclosure of Invention
Aiming at the defect that the existing air conditioner filter screen cannot effectively refresh air, the invention provides the filter screen for purifying the air of the house fresh air system and the preparation method thereof, so that the air conditioner can refresh the indoor air and improve the indoor air quality while adjusting the indoor temperature.
In order to solve the problems, the invention adopts the following technical scheme:
a preparation method of a filter screen for purifying air of a house fresh air system comprises a base material and an air refreshing coating coated on the base material, wherein the base material is a filter screen with a plain weave structure woven by polymer fibers, and the air refreshing coating is obtained by spraying emulsion prepared by adding activated carbon powder, tea stalk powder, high-iodine powder, a surfactant and a binder into water on the base material, and the preparation method specifically comprises the following steps:
(1) mixing activated carbon powder, tea stalk powder and high polymer iodine powder, adding surfactant and binder into water, and mixing to obtain air refreshing emulsion;
(2) uniformly spraying the air freshening emulsion on the surface of a base material in an ultrasonic spraying mode, and drying to form an air freshening coating, namely obtaining a filter screen for purifying air of a house fresh air system; the base material is a filter screen with a plain weave structure woven by polymer fibers.
Preferably, in the air refreshing emulsion in the step (1), the mass ratio of the water, the activated carbon powder, the tea stalk powder, the high polyiodide powder, the surfactant and the binder is 150:40-50:10-15:10-15:0.5-1:2-5: 8-12.
Preferably, the tea powder is prepared by drying and crushing one or more combined tea leaves of green tea, black tea, oolong tea, white tea, yellow tea and black tea; the tea stalk powder is prepared by drying and pulverizing one or more combined tea stalks of green tea, black tea, oolong tea, white tea, yellow tea and black tea.
Preferably, the polymerization degree of the high polyiodide is 7, 9, 11 or 13, and the effective iodine amount is 60-70%.
Preferably, the surfactant is one or the combination of more than two of coco glucoside, lauryl glucoside, cetearyl glucoside, sorbitan fatty acid and polysorbate.
Preferably, the binder is prepared from water glass and polyvinyl alcohol according to a mass ratio of 3: 1.
Preferably, the temperature of the ultrasonic spraying in the step (2) is 30-40 ℃.
Preferably, the thickness of the air freshening coating in step (2) is 50 to 200 μm.
Preferably, the polymer fiber is one of polypropylene fiber and polyester fiber.
The invention also provides the filter screen for purifying the air of the house fresh air system, which is prepared by the preparation method.
The existing filter screen does not have the air refreshing effect, cannot meet the application of higher requirements, and particularly has the high-efficiency sterilization and air refreshing effects on a house fresh air system. In view of the above, the invention provides a filter screen for purifying air of a house fresh air system and a preparation method thereof. The conventional ultrasonic spraying equipment is adopted for spraying, the emulsion is firstly atomized into fine particles through an ultrasonic atomization device, and then the fine particles are uniformly coated on the surface of the base material through the carrier gas, so that the coating liquid is uniformly dispersed and firmly attached to the base material. The air refreshing coating of the air conditioner filter screen provided by the invention contains the tea stems with high adsorbability, the tea stems can permanently give out light fragrance, the air refreshing coating has a good air refreshing effect, the raw material sources are rich, the price is low, the air conditioner filter screen is very healthy and environment-friendly, compared with an air freshener and the like, the air conditioner filter screen does not produce secondary pollution, and the filter screen can effectively control the breeding of bacteria by utilizing the high adsorbability of active carbon and the efficient sterilization and disinfection effect of high iodine.
Compared with the prior art, the invention provides a filter screen for purifying air of a house fresh air system and a preparation method thereof, and the outstanding characteristics and excellent effects are as follows:
1. the air refreshing coating contains the tea stalks with high adsorbability, the tea stalks can give out light fragrance for a long time, and the air refreshing coating has the effects of improving eyesight and tranquilizing, restoring consciousness and clearing heat and can improve sleep so that people can fall asleep easily.
2. The tea leaves and the tea stalks used in the invention have rich sources and low price, are very healthy and environment-friendly, and do not produce secondary pollution compared with air fresheners and the like.
3. The air freshening filter screen prepared by the method can effectively control the breeding of bacteria by utilizing the high adsorbability of the active carbon and the high-efficiency sterilization and disinfection effect of the high polyiodide.
Drawings
Fig. 1 is a picture of a filter screen for purifying air in a fresh air system obtained in embodiment 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but it should not be construed that the scope of the present invention is limited to the following examples. Various substitutions and alterations can be made by those skilled in the art and by conventional means without departing from the spirit of the method of the invention described above.
Example 1
(1) Mixing activated carbon powder, tea stalk powder and high polymer iodine powder, adding surfactant and binder into water, and mixing to obtain air refreshing emulsion; the tea powder and tea stalk powder are prepared by drying and pulverizing green tea leaves or tea stalks; the polymerization degree of the high polymer iodine is 7, and the effective iodine amount is 65%; the surfactant is coco glucoside; the binder is prepared from water glass and polyvinyl alcohol according to the mass ratio of 3: 1; in the air refreshing emulsion, the mass ratio of water, activated carbon powder, tea stem powder, high polyiodide powder, a surfactant and a binder is 150:45:12:12:0.5:4: 10;
(2) uniformly spraying the air refreshing emulsion on the surface of a base material through an ultrasonic spraying instrument, and drying to form an air refreshing coating, namely obtaining a filter screen for purifying air of a house fresh air system; the base material is a filter screen with a plain weave structure woven by polymer fibers, and the polymer fibers are polypropylene fibers; the temperature of ultrasonic spraying is 35 ℃; the thickness of the air freshening coating was 120 μm.
Example 2
(1) Mixing activated carbon powder, tea stalk powder and high polymer iodine powder, adding surfactant and binder into water, and mixing to obtain air refreshing emulsion; the tea leaf powder and tea stalk powder are obtained by drying and crushing tea leaves or tea stalks of black tea; the polymerization degree of the high polymer iodine is 9, and the effective iodine amount is 60 percent; the surfactant is lauryl glucoside; the binder is prepared from water glass and polyvinyl alcohol according to the mass ratio of 3: 1; in the air refreshing emulsion, the mass ratio of water, activated carbon powder, tea stem powder, high polyiodide powder, a surfactant and a binder is 150:40:10:10:0.5:2: 8;
(2) uniformly spraying the air freshening emulsion on the surface of a base material in an ultrasonic spraying mode, and drying to form an air freshening coating, namely obtaining a filter screen for purifying air of a house fresh air system; the base material is a filter screen with a plain weave structure woven by polymer fibers, and the polymer fibers are terylene; the temperature of ultrasonic spraying is 30 ℃; the thickness of the air freshening coating was 50 μm.
Example 3
(1) Mixing activated carbon powder, tea stalk powder and high polymer iodine powder, adding surfactant and binder into water, and mixing to obtain air refreshing emulsion; the tea leaf powder and tea stalk powder are prepared by drying and pulverizing oolong tea leaves or tea stalks; the polymerization degree of the high polymer iodine is 11, and the effective iodine amount is 70%; the surfactant is cetearyl glucoside; the binder is prepared from water glass and polyvinyl alcohol according to the mass ratio of 3: 1; in the air refreshing emulsion, the mass ratio of water, activated carbon powder, tea stem powder, high polyiodide powder, a surfactant and a binder is 150: 50: 15: 15: 0.5: 5: 12;
(2) uniformly spraying the air freshening emulsion on the surface of a base material in an ultrasonic spraying mode, and drying to form an air freshening coating, namely obtaining a filter screen for purifying air of a house fresh air system; the base material is a filter screen with a plain weave structure woven by polymer fibers, and the polymer fibers are polypropylene fibers; the temperature of ultrasonic spraying is 40 ℃; the thickness of the air freshening coating was 200 μm.
Example 4
(1) Mixing activated carbon powder, tea stalk powder and high polymer iodine powder, adding surfactant and binder into water, and mixing to obtain air refreshing emulsion; the tea powder and tea stalk powder are prepared by drying and pulverizing tea leaves or tea stalks of white tea; the polymerization degree of the high polymer iodine is 13, and the effective iodine amount is 66%; the surfactant is polysorbate; the binder is prepared from water glass and polyvinyl alcohol according to the mass ratio of 3: 1; in the air refreshing emulsion, the mass ratio of water, activated carbon powder, tea stem powder, high polyiodide powder, a surfactant and a binder is 150:44:13:13:0.8:3: 11;
(2) uniformly spraying the air freshening emulsion on the surface of a base material in an ultrasonic spraying mode, and drying to form an air freshening coating, namely obtaining a filter screen for purifying air of a house fresh air system; the base material is a filter screen with a plain weave structure woven by polymer fibers, and the polymer fibers are terylene; the temperature of ultrasonic spraying is 36 ℃; the thickness of the air freshening coating was 100 μm.
Comparative example 1
Comparative example 1 compared with example 1, the filter net prepared without adding tea stem powder and high polyiodide is the same as example 1.
The filter screens obtained in examples 1 to 4 and comparative example 1 were used in a fresh air system in a toilet to perform a purification performance test.
And (3) testing the sterilization effect of the fresh air system:
after the filter screens obtained in examples 1 to 4 and comparative example 1 were cut, 4 layers were stacked, and the test was performed with reference to the microbial purification efficiency test method of GB/T34012-2017 "air purification apparatus for ventilation system". Selecting staphylococcus albus as a target, and temporarily not considering naturally dead bacteria; and (3) putting the filter screen into an air exchange fresh air system, starting a ventilator to operate, starting an aerosol sprayer to keep the concentration of experimental bacteria at an inlet after natural ventilation is carried out for 5min, and then testing the concentration of the bacteria at the inlet and the concentration of the bacteria passing through the fresh air system, thereby calculating the microbial purification efficiency. As shown in table 1.
Table 1:
Claims (10)
1. a preparation method of a filter screen for purifying air of a house fresh air system is characterized by comprising the following steps:
(1) mixing activated carbon powder, tea stalk powder and high polymer iodine powder, adding surfactant and binder into water, and mixing to obtain air refreshing emulsion;
(2) uniformly spraying the air freshening emulsion on the surface of a base material in an ultrasonic spraying mode, and drying to form an air freshening coating, namely obtaining a filter screen for purifying air of a house fresh air system; the base material is a filter screen with a plain weave structure woven by polymer fibers.
2. The preparation method of the filter screen for purifying air of the house fresh air system according to claim 1, wherein in the air refreshing emulsion in the step (1), the mass ratio of water, activated carbon powder, tea stem powder, high polyiodide powder, surfactant and binder is 150:40-50:10-15:10-15:0.5-1:2-5: 8-12.
3. The method of claim 1, wherein the tea powder is prepared by drying and pulverizing one or more selected from green tea, black tea, oolong tea, white tea, yellow tea, and black tea; the tea stalk powder is prepared by drying and pulverizing one or more combined tea stalks of green tea, black tea, oolong tea, white tea, yellow tea and black tea.
4. The method for preparing the air-purifying filter screen of the house fresh air system according to claim 1, wherein the polymerization degree of the high-polymer iodine is 7, 9, 11 or 13, and the effective iodine amount is 60-70%.
5. The method for preparing the filter screen for purifying the air of the house fresh air system according to claim 1, wherein the surfactant is one or a combination of more than two of coco glucoside, lauryl glucoside, cetearyl glucoside, sorbitan fatty acid and polysorbate.
6. The preparation method of the filter screen for purifying air of the house fresh air system according to claim 1, wherein the binder is prepared from water glass and polyvinyl alcohol according to a mass ratio of 3: 1.
7. The method for preparing the air-purifying filter screen of the house fresh air system according to claim 1, wherein the temperature of the ultrasonic spraying in the step (2) is 30-40 ℃.
8. The method for preparing the air-purifying filter screen of the house fresh air system according to claim 1, wherein the thickness of the air-refreshing coating in the step (2) is 50-200 μm.
9. The method for preparing the air-purifying filter screen of the house fresh air system according to claim 1, wherein the polymer fiber is one of polypropylene fiber and polyester fiber.
10. A room fresh air system air purification filter screen prepared by the preparation method of any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010304881.1A CN111482005A (en) | 2020-04-17 | 2020-04-17 | Filter screen for purifying air of house fresh air system and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010304881.1A CN111482005A (en) | 2020-04-17 | 2020-04-17 | Filter screen for purifying air of house fresh air system and preparation method |
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| CN111482005A true CN111482005A (en) | 2020-08-04 |
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| CN202010304881.1A Withdrawn CN111482005A (en) | 2020-04-17 | 2020-04-17 | Filter screen for purifying air of house fresh air system and preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112931536A (en) * | 2021-02-01 | 2021-06-11 | 长沙道勤生物科技有限公司 | Dry powder type environmental disinfectant for livestock and poultry breeding and preparation method thereof |
| CN114405158A (en) * | 2022-02-09 | 2022-04-29 | 吉林农业科技学院 | Chemical filter and preparation method of chemical filter material thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203990113U (en) * | 2014-07-02 | 2014-12-10 | 彭育华 | For the cleaner structure of air conditioning for automobiles |
| CN105999338A (en) * | 2016-05-19 | 2016-10-12 | 常州佳得顺抗菌材料科技有限公司 | Air disinfecting filter element material and preparation method thereof |
| CN106123116A (en) * | 2016-06-27 | 2016-11-16 | 安徽金联地矿科技有限公司 | A kind of multi-functional attapulgite air-conditioning filter net |
| CN107617279A (en) * | 2016-07-13 | 2018-01-23 | 徐晓阳 | A kind of preparation method for purifying airstrainer |
-
2020
- 2020-04-17 CN CN202010304881.1A patent/CN111482005A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203990113U (en) * | 2014-07-02 | 2014-12-10 | 彭育华 | For the cleaner structure of air conditioning for automobiles |
| CN105999338A (en) * | 2016-05-19 | 2016-10-12 | 常州佳得顺抗菌材料科技有限公司 | Air disinfecting filter element material and preparation method thereof |
| CN106123116A (en) * | 2016-06-27 | 2016-11-16 | 安徽金联地矿科技有限公司 | A kind of multi-functional attapulgite air-conditioning filter net |
| CN107617279A (en) * | 2016-07-13 | 2018-01-23 | 徐晓阳 | A kind of preparation method for purifying airstrainer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112931536A (en) * | 2021-02-01 | 2021-06-11 | 长沙道勤生物科技有限公司 | Dry powder type environmental disinfectant for livestock and poultry breeding and preparation method thereof |
| CN114405158A (en) * | 2022-02-09 | 2022-04-29 | 吉林农业科技学院 | Chemical filter and preparation method of chemical filter material thereof |
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