[go: up one dir, main page]

CN110898569A - A kind of antibacterial breathable breathing device - Google Patents

A kind of antibacterial breathable breathing device Download PDF

Info

Publication number
CN110898569A
CN110898569A CN201911051193.2A CN201911051193A CN110898569A CN 110898569 A CN110898569 A CN 110898569A CN 201911051193 A CN201911051193 A CN 201911051193A CN 110898569 A CN110898569 A CN 110898569A
Authority
CN
China
Prior art keywords
breathing
cap
horizontal
antibacterial
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911051193.2A
Other languages
Chinese (zh)
Inventor
张平允
顾玉亮
张东
乐勤
王铮
姜蕾
沈雪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai National Engineering Research Center of Urban Water Resources Co Ltd
Original Assignee
Shanghai National Engineering Research Center of Urban Water Resources Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai National Engineering Research Center of Urban Water Resources Co Ltd filed Critical Shanghai National Engineering Research Center of Urban Water Resources Co Ltd
Priority to CN201911051193.2A priority Critical patent/CN110898569A/en
Publication of CN110898569A publication Critical patent/CN110898569A/en
Priority to PCT/CN2020/122402 priority patent/WO2021082998A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0028Filters 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/54Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/543Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/54Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/546Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using nano- or microfibres
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

本发明公开了一种抑菌透气呼吸装置,包括呼吸管(1),所述呼吸管(1)一端与水箱或水池连通,另一端连接呼吸帽(3),于所述呼吸帽(3)内部固定一片或多片静电纺丝功能纳米纤维膜片,以构成所述呼吸帽(3)的水平状或/和坡度状呼吸孔,本发明通过利用静电纺丝功能纳米纤维的高效透气性,确保二次供水水池具有良好的透气性,同时通过利用静电纺丝功能纳米纤维的高效抑菌性对二次供水水池外来及内部通过呼吸装置的菌类滋生物的生长进行抑制。

Figure 201911051193

The invention discloses a bacteriostatic breathable breathing device, comprising a breathing tube (1), one end of the breathing tube (1) is connected with a water tank or a water pool, and the other end is connected with a breathing cap (3), which is connected to the breathing cap (3) One or more electrospinning functional nanofiber membranes are fixed inside to form the horizontal or/and gradient breathing holes of the breathing cap (3). It ensures that the secondary water supply pool has good air permeability, and at the same time, by using the high-efficiency antibacterial properties of electrospinning functional nanofibers, the growth of bacterial growth outside the secondary water supply pool and through the breathing device is inhibited.

Figure 201911051193

Description

Antibacterial breathable breathing device
Technical Field
The invention relates to a breathing device, in particular to a bacteriostatic breathable breathing device of a secondary water supply pool (tank).
Background
The secondary water supply facilities refer to facilities such as low, medium and high water reservoirs, water storage tanks, auxiliary pipelines, valves, water pump units, air pressure tanks and the like which are arranged for guaranteeing the domestic drinking water of residents. Most of the existing secondary water supply facilities adopt a high-level water tank (tank) which is a flat-bottom water tank, the water storage capacity is large, most of the existing secondary water supply facilities are closed, only two water conveying pipes for water inlet and water outlet are provided, and the air exchange (ventilation) between the water tank (tank) and the outside is realized only through a breathing cap. The good air permeability of the secondary water supply pool (tank) is the key for ensuring the safety and health of the quality of drinking water.
However, the tap water is easily polluted to a certain degree due to improper management of the secondary water supply pool (tank) or untight sealing of the breathing cap, for example, the secondary water supply pool (tank) has poor sealing performance or no cover, dust, insects and the like are easily caused to enter the pool (tank), so that algae, microorganisms, viruses and bacteria are bred, a water outlet pipe of the secondary water supply pool (tank) is more than ten centimeters away from the bottom of the tank, and a part of nonflowable fire water is stored at the bottom of the tank, so that favorable conditions are created for the growth of the microorganisms, and the drinking water safety is damaged. In addition, some living things, such as sparrows and pigeons, fall into the secondary water supply pool (tank) to be drowned, which also causes water pollution. The secondary water supply pool (tank) is not sealed tightly, which brings great damage to water quality, seriously affects the normal water quality of residents and causes great harm to the bodies of the residents. The problem of the last kilometer of tap water supply is solved, so that citizens can enjoy high-quality and safe tap water, and the problem of sealing a secondary water supply pool (tank) needs to be solved.
In order to solve the sealing problem of the secondary water supply pool (tank), the selection of high-efficiency gas filtering materials and the development of a novel secondary water supply pool (tank) breathing (ventilating) device are very important. At present, the conventional breathing (ventilating) device of the secondary water supply pool (tank) is simple in structure, generally has the shapes of a chimney, a mushroom cap and the like, adopts a 304 stainless steel mesh with the size less than 30 meshes inside to prevent dust, insects, organisms and the like from entering the secondary water supply pool (tank), and is poor in sealing performance and gas filtering effect. The core filter media in the existing high efficiency air filtration (HEPA) and ultra high efficiency air filtration (ULPA) are typically ultra-fine glass fiber membranes or melt blown fiber nonwovens, both of which can achieve higher filtration efficiency, but the air resistance can sharply rise along with the increase of dust holding capacity during use, thereby causing the increase of energy consumption. In addition, glass fibers have poor folding resistance, are easily broken during processing and use, and have the possibility of causing cancer while affecting filtration efficiency.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an antibacterial breathable breathing device, which ensures that a secondary water supply pool (tank) has good breathability by utilizing the efficient breathability of the nanofiber with the electrostatic spinning function.
Another object of the present invention is to provide a bacteriostatic and breathable breathing apparatus for suppressing the growth of bacteria and other organisms outside and inside a secondary water supply tank (tank) through the breathing apparatus by using the highly efficient bacteriostatic activity of electrospinning functional nanofibers.
In order to achieve the purpose, the invention provides a bacteriostatic breathable breathing device which comprises a breathing tube (1), wherein one end of the breathing tube (1) is communicated with a water tank or a water pool, the other end of the breathing tube is connected with a breathing cap (3), and one or more electrostatic spinning functional nanofiber membranes are fixed inside the breathing cap (3) to form a horizontal or/and gradient-shaped breathing hole of the breathing cap (3).
Preferably, breathing tube (1) includes pipeline main part and inner skleeve (2), pipeline main part is the integrated into one piece structure, and its one end and water tank or pond intercommunication, other pot head are established inner skleeve (2), breathing cap (3) with breathing tube (1) passes through inner skleeve (2) welding forms.
Preferably, the breathing tube (1) is designed to be chimney-shaped or mushroom-shaped according to the water quantity and position of the pool or the water tank.
Preferably, the pipeline body is composed of a horizontal straight pipe (11), a vertical straight pipe (13) and an elbow pipe (12), the elbow pipe (12) is arranged between the horizontal straight pipe (11) and the vertical straight pipe (13), and the inner sleeve (2) is sleeved in the vertical straight pipe (13).
Preferably, the horizontal position in the body of the breathing cap (3) is used for fixing an electrostatic spinning functional nanofiber membrane (4) through a breathing cap accessory so as to form a horizontal breathing hole of the breathing cap.
Preferably, a buckle is arranged on the inner wall of the breathing cap 3 body, and the electrostatic spinning functional nanofiber membrane (4) is fixed at the horizontal position inside the breathing cap (3) body in a buckle connection mode
Preferably, an electrostatic spinning functional nanofiber membrane (5) is obliquely fixed above the horizontal breathing hole through a breathing cap accessory so as to form the slope-shaped breathing hole of the breathing cap (3).
Preferably, a hinge is arranged on the inner wall of the breathing cap (3) body, and the electrostatic spinning functional nanofiber membrane (5) is obliquely fixed in the breathing cap (3) in a mode of quick-connection hinge connection.
Preferably, the whole stainless steel that adopts of breathing cap (3), it includes middle column and rather than integrated into one piece's semicircle part, the level form breathing hole sets up in middle column part, slope form breathing hole sets up in semicircle part.
Preferably, the rest parts of the breathing device except the breathing hole are all hollow structures.
Compared with the prior art, the bacteriostatic breathable breathing device has the advantages that the electrostatic spinning functional nanofiber diaphragms are respectively fixed at different positions inside the breathing cap (3) to respectively form the horizontal or gradient breathing holes of the breathing cap (3), so that the high-efficiency breathability of the electrostatic spinning functional nanofiber is utilized, the secondary water supply pool (tank) is ensured to have good breathability, and meanwhile, the high-efficiency bacteriostatic property of the electrostatic spinning functional nanofiber is utilized to inhibit the growth of fungi and other biological substances passing through the breathing (breathable) device from the outside and the inside of the secondary water supply pool (tank).
Drawings
Fig. 1 is a schematic cross-sectional exploded view of a bacteriostatic breathable breathing device according to the invention.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
The electrostatic spinning functional nanofiber has attracted wide attention as a novel gas filtering material, the filtering principle of the electrostatic spinning functional nanofiber is complex, and the electrostatic spinning functional nanofiber is generally considered as a result of the combined action of five effects, namely an interception effect, an inertia effect, a diffusion effect, a gravity effect and an electrostatic effect. The electrostatic spinning functional nanofiber has the characteristics of high filtering efficiency, low air resistance, low gram weight and the like, so that the electrostatic spinning functional nanofiber can gradually replace the traditional fiber material to be applied to the aspects of dust filtration, indoor air purification, locomotive air filtration and the like. The invention also applies the electrostatic spinning functional nanofiber material.
Fig. 1 is a schematic cross-sectional exploded view of a bacteriostatic breathable breathing device according to the invention. As shown in fig. 1, the invention provides a bacteriostatic breathable breathing device, comprising: the respiratory tube 1 comprises a tube main body and an inner sleeve 2, wherein the tube main body is a stainless steel tube, the tube main body is an integrally formed structure and can be designed into various shapes such as chimney shape, mushroom shape and the like according to the water quantity and the position of a secondary water supply pool (tank), in the specific embodiment of the invention, the tube main body is a chimney-shaped structure and comprises a horizontal straight tube 11, a vertical straight tube 13 and a section of bent tube 12, wherein the bent tube 12 is arranged between the horizontal straight tube 11 and the vertical straight tube 13, the inner sleeve 2 is sleeved in the straight tube 13, the other end of the horizontal straight tube 11 is used for being communicated with the pool (tank), namely one end of the respiratory tube 1 is communicated with the pool (tank), the other end is connected with a respiratory cap 3, the respiratory cap 3 is welded with the respiratory tube 1 through the inner sleeve 2, the respiratory cap 3 is of a welded integral structure, and the respiratory cap 3 is made of stainless steel material, the horizontal breathing hole of the breathing cap is formed by fixing an electrostatic spinning functional nanofiber membrane 4 at the horizontal position (the middle column part) of the breathing hole in the breathing cap 3, and the horizontal breathing hole of the breathing cap is formed by arranging a buckle on the inner wall of the body of the breathing cap 3, the electrostatic spinning functional nanofiber membrane 4 is fixed at the horizontal position in the breathing cap 3 in a buckle connection mode, and an electrostatic spinning functional nanofiber membrane 5 is obliquely fixed above the horizontal breathing hole (the semicircular part) to form the slope-shaped breathing hole of the breathing cap 3, in the specific embodiment of the invention, a hinge is arranged on the inner wall (namely, the arc inner wall) of the breathing cap 3 body, the electrospinning functional nanofiber membrane 5 is obliquely fixed inside the breathing cap 3 in a hinge connection mode to realize a slope-shaped breathing hole, the horizontal or slope-shaped electrospinning functional nanofiber membrane is easy to fall off under internal pressure (under special conditions such as overflow, the internal pressure exceeds 0.1MPa), the membrane is not easy to fall off under external pressure, and quick replacement can be realized by a quick-connection buckle or a quick-connection hinge when the breathing hole is replaced.
In the invention, the air filtration uses the electrostatic spinning functional nanofiber membrane, the functional nanofiber membrane has high air and water vapor permeability on one hand, wherein the air permeability of the membrane under the pressure difference of 127Pa (13mm water column) is 3571-4894 cm3/(cm2·s)]The membrane has an air permeability of 281180.5-385353.6 [ mu m/(Pa s)]The water vapor transmission rate in 24 hours is 3112-3790 g/m3(ii) a On the other hand, the functional nanofiber membrane has high antibacterial activity, and the antibacterial activity value (staphylococcus aureus and escherichia coli) of the functional nanofiber membrane is greater than 3.
The working principle of the invention is as follows: the breathing device of the invention is arranged on the secondary water supply water tank to replace the position of the traditional breathing cap, when in use, the breathing device is not directly contacted with water, one end of the breathing tube 1 is communicated with the water tank, the breathing device is provided with a breathing hole (a horizontal or gradient breathing hole), the rest parts are hollow structures, air and vapor can freely pass through the breathing device, the horizontal or slope-shaped breathing holes adopt nanofiber membranes with electrostatic spinning function, the functional nanofiber membrane has high-efficiency air and water vapor permeability on one hand and high-efficiency antibacterial activity on the other hand, and actually, the breathing device can realize bidirectional autonomous unpowered ventilation (water vapor and air can permeate, and the permeability of the nanofiber membrane material at the breathing hole can realize the water vapor and air is 99%) only by one of the horizontal or slope-shaped breathing holes.
In summary, in the bacteriostatic breathable breathing device, the electrostatic spinning functional nanofiber membranes are respectively fixed at different positions inside the breathing cap (3) to respectively form horizontal or gradient breathing holes of the breathing cap (3), so that the high-efficiency breathability of the electrostatic spinning functional nanofiber is utilized to ensure that the secondary water supply pool (tank) has good breathability, and the high-efficiency bacteriostatic property of the electrostatic spinning functional nanofiber is utilized to inhibit the growth of fungus-type organisms passing through the breathing (breathable) device from the outside and the inside of the secondary water supply pool (tank).
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.

Claims (10)

1.一种抑菌透气呼吸装置,包括呼吸管(1),所述呼吸管(1)一端与水箱或水池连通,另一端连接呼吸帽(3),于所述呼吸帽(3)内部固定一片或多片静电纺丝功能纳米纤维膜片,以构成所述呼吸帽(3)的水平状或/和坡度状呼吸孔。1. A bacteriostatic breathable breathing apparatus, comprising a breathing tube (1), one end of the breathing tube (1) is communicated with a water tank or a water pool, and the other end is connected to a breathing cap (3), which is fixed inside the breathing cap (3) One or more electrospinning functional nanofiber membrane sheets are used to form the horizontal or/and slope-shaped breathing holes of the breathing cap (3). 2.如权利要求1所述的一种抑菌透气呼吸装置,其特征在于:所述呼吸管(1)包括管道主体以及内套筒(2),所述管道主体为一体成型结构,其一端与水箱或水池连通,另一端套设所述内套筒(2),所述呼吸帽(3)与所述呼吸管(1)通过所述内套筒(2)焊接而成。2. The antibacterial breathable breathing apparatus according to claim 1, characterized in that: the breathing tube (1) comprises a main body of a pipe and an inner sleeve (2), and the main body of the pipe is an integrally formed structure, and one end thereof The inner sleeve (2) is sleeved on the other end, and the breathing cap (3) and the breathing tube (1) are welded by the inner sleeve (2). 3.如权利要求1所述的一种抑菌透气呼吸装置,其特征在于:根据水池或水箱的水量、位置,所述呼吸管(1)设计成烟囱状或蘑菇状。3. A kind of antibacterial ventilation breathing apparatus as claimed in claim 1, is characterized in that: according to the water volume and position of pool or water tank, described breathing tube (1) is designed into chimney shape or mushroom shape. 4.如权利要求3所述的一种抑菌透气呼吸装置,其特征在于:所述管道主体由水平直形管(11)、垂直直形管(13)以及弯管(12)构成,所述弯管(12)处于所述水平直形管(11)和垂直直形管(13)之间,所述内套筒(2)套设于所述垂直直形管(13)内。4. The antibacterial breathable breathing device according to claim 3, wherein the main body of the pipeline is composed of a horizontal straight pipe (11), a vertical straight pipe (13) and a curved pipe (12), The bent pipe (12) is located between the horizontal straight pipe (11) and the vertical straight pipe (13), and the inner sleeve (2) is sleeved in the vertical straight pipe (13). 5.如权利要求1所述的一种抑菌透气呼吸装置,其特征在于:所述呼吸帽(3)本体内部水平位置通过呼吸帽配件固定一静电纺丝功能纳米纤维膜片(4),以构成所述呼吸帽的水平状呼吸孔。5. A kind of antibacterial ventilation breathing apparatus as claimed in claim 1, is characterized in that: the inner horizontal position of described breathing cap (3) body is fixed an electrospinning function nanofiber membrane (4) by breathing cap fittings, to form the horizontal breathing holes of the breathing cap. 6.如权利要求5所述的一种抑菌透气呼吸装置,其特征在于:于所述呼吸帽3本体的内壁上设置卡扣,所述静电纺丝功能纳米纤维膜片(4)通过卡扣连接的方式固定于所述呼吸帽(3)本体内部的水平位置。6. A kind of antibacterial breathable breathing device as claimed in claim 5, characterized in that: a buckle is provided on the inner wall of the breathing cap 3 body, and the electrospinning function nanofiber membrane (4) passes through the buckle The way of snap connection is fixed on the horizontal position inside the breathing cap (3) body. 7.如权利要求1所述的一种抑菌透气呼吸装置,其特征在于:于所述水平状呼吸孔上方,通过呼吸帽配件倾斜固定一静电纺丝功能纳米纤维膜片(5),以构成所述呼吸帽(3)的坡度状呼吸孔。7. A kind of antibacterial ventilation breathing device as claimed in claim 1 is characterized in that: above the horizontal breathing hole, an electrostatic spinning function nanofiber membrane (5) is fixed obliquely through the breathing cap fitting, so as to The sloping breathing holes of the breathing cap (3) are formed. 8.如权利要求7所述的一种抑菌透气呼吸装置,其特征在于:于所述呼吸帽3本体的内壁上设置铰链,所述静电纺丝功能纳米纤维膜片(5)通过快接铰链连接的方式倾斜固定于所述呼吸帽(3)内。8. A kind of antibacterial breathable breathing device as claimed in claim 7, it is characterized in that: a hinge is arranged on the inner wall of the body of the breathing cap 3, and the electrospinning function nanofiber membrane (5) is connected by a quick connection The hinge connection is inclined and fixed in the breathing cap (3). 9.如权利要求1所述的一种抑菌透气呼吸装置,其特征在于:所述呼吸帽(3)整体采用不锈钢材质,其包括中间柱状及与其一体成型的半圆部分,所述水平状呼吸孔设置于中间柱状部分,所述坡度状呼吸孔设置于半圆部分。9. A kind of antibacterial breathable breathing apparatus as claimed in claim 1, it is characterized in that: described breathing cap (3) adopts stainless steel material as a whole, and it comprises middle column shape and the semicircular part integrally formed with it, and described horizontal breathing The holes are arranged in the middle column portion, and the gradient-shaped breathing holes are arranged in the semicircular portion. 10.如权利要求1所述的一种抑菌透气呼吸装置,其特征在于:所述呼吸装置除呼吸孔外,其余部位均为中空结构。10 . The antibacterial breathable breathing device according to claim 1 , wherein the breathing device has a hollow structure except for the breathing holes. 11 .
CN201911051193.2A 2019-10-31 2019-10-31 A kind of antibacterial breathable breathing device Pending CN110898569A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201911051193.2A CN110898569A (en) 2019-10-31 2019-10-31 A kind of antibacterial breathable breathing device
PCT/CN2020/122402 WO2021082998A1 (en) 2019-10-31 2020-10-21 Bacteriostatic breathable breathing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911051193.2A CN110898569A (en) 2019-10-31 2019-10-31 A kind of antibacterial breathable breathing device

Publications (1)

Publication Number Publication Date
CN110898569A true CN110898569A (en) 2020-03-24

Family

ID=69815094

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911051193.2A Pending CN110898569A (en) 2019-10-31 2019-10-31 A kind of antibacterial breathable breathing device

Country Status (2)

Country Link
CN (1) CN110898569A (en)
WO (1) WO2021082998A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111980113A (en) * 2020-09-22 2020-11-24 上海城市水资源开发利用国家工程中心有限公司 Overflow device for water tank
WO2021082998A1 (en) * 2019-10-31 2021-05-06 上海城市水资源开发利用国家工程中心有限公司 Bacteriostatic breathable breathing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050092372A1 (en) * 2003-10-29 2005-05-05 Wade Rodney G. Flap valve
CN108570768A (en) * 2018-05-14 2018-09-25 上海城市水资源开发利用国家工程中心有限公司 A kind of method and apparatus preparing compound antibacterial nano fibrous membrane
CN208844667U (en) * 2018-08-02 2019-05-10 中国中元国际工程有限公司 Safety and sanitation water storage device
CN210964392U (en) * 2019-10-31 2020-07-10 上海城市水资源开发利用国家工程中心有限公司 Antibacterial breathable breathing device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2526354Y (en) * 2002-01-30 2002-12-18 孙险平 Pipeline water supply unit without suction lift
CN202070257U (en) * 2011-04-02 2011-12-14 青岛沃泰水技术设备制造有限公司 Air filtering absorber and water tank adopting same
CN206554170U (en) * 2017-01-23 2017-10-13 杭州西子泵业有限公司 A kind of hygiene-type water system
CN208996131U (en) * 2018-09-07 2019-06-18 北京安洁康生物科技有限公司 The anti-throw-in type respirator of anti-terrorism for water tank
CN110898569A (en) * 2019-10-31 2020-03-24 上海城市水资源开发利用国家工程中心有限公司 A kind of antibacterial breathable breathing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050092372A1 (en) * 2003-10-29 2005-05-05 Wade Rodney G. Flap valve
CN108570768A (en) * 2018-05-14 2018-09-25 上海城市水资源开发利用国家工程中心有限公司 A kind of method and apparatus preparing compound antibacterial nano fibrous membrane
CN208844667U (en) * 2018-08-02 2019-05-10 中国中元国际工程有限公司 Safety and sanitation water storage device
CN210964392U (en) * 2019-10-31 2020-07-10 上海城市水资源开发利用国家工程中心有限公司 Antibacterial breathable breathing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021082998A1 (en) * 2019-10-31 2021-05-06 上海城市水资源开发利用国家工程中心有限公司 Bacteriostatic breathable breathing device
CN111980113A (en) * 2020-09-22 2020-11-24 上海城市水资源开发利用国家工程中心有限公司 Overflow device for water tank

Also Published As

Publication number Publication date
WO2021082998A1 (en) 2021-05-06

Similar Documents

Publication Publication Date Title
CN110898569A (en) A kind of antibacterial breathable breathing device
CN210964392U (en) Antibacterial breathable breathing device
CN206949003U (en) A kind of flowerpot with air-cleaning function
CN208186609U (en) A kind of rotary air clarifier
CN205957392U (en) Outdoor intelligent air purifier
CN202086830U (en) Novel air purifier
CN103877809A (en) Indoor air purifier
CN203852436U (en) Endoscope long-term storage device
CN108458414A (en) A kind of energy-saving indoor haze processing unit
CN204342555U (en) A kind of novel portable drinking tube
CN204192373U (en) A kind of water dispenser with air cleaner
CN208601826U (en) A kind of injection molding machine peculiar smell absorption plant
CN206771634U (en) A kind of new blower fan
CN206232510U (en) A kind of safe drinking water filter for being conveniently replaceable filter core
CN207754296U (en) A kind of livestock-raising air cleaning unit
CN208186611U (en) A kind of spiral air clarifier
CN206593227U (en) Wall-mounted air purification device
CN206837761U (en) A kind of VMC filter
CN207055422U (en) A kind of toilet lid and closestool
CN206488391U (en) A kind of outdoor air filtering environment protection device
CN205554550U (en) Marine cloth wind ware
CN105499181A (en) Cleaning system for filter screen of air conditioner
CN209068676U (en) A kind of green building filter-fan unit
CN205287895U (en) Filtering device for air purifier
CN209840285U (en) Antibacterial and purifying fan coil unit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20200324