CN111980113A

CN111980113A - Overflow device for water tank

Info

Publication number: CN111980113A
Application number: CN202010999018.2A
Authority: CN
Inventors: 张平允; 沈雪; 张双翼; 朱文滨; 顾宇宏; 蔡海芸
Original assignee: Shanghai Municipal Water Resources Development And Utilization National Engineering Center Co ltd
Current assignee: Shanghai Municipal Water Resources Development And Utilization National Engineering Center Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2020-11-24

Abstract

The invention provides a water tank overflow device which comprises a connecting pipe, a rotating part, an installation plate and a nanofiber membrane, wherein the rotating part is hinged to the connecting pipe, the installation plate is connected with the rotating part, the nanofiber membrane is arranged on the installation plate, and a plurality of through holes are formed in the installation plate. According to the water tank overflow device, when water in the water tank overflows, the mounting plate rotates to realize an overflow function, when the water in the water tank does not overflow, the mounting plate rotates to be closed, at the moment, external water, insects, sundries and the like cannot pass through the nanofiber membrane, but air can pass through, so that the functions of bacteriostasis, ventilation and insect prevention are effectively realized, the functions of ventilation and air permeation are realized, the problem that the existing overflow pipe cannot have insect prevention and dust prevention functions is effectively solved, and the water quality safety of a secondary water supply water tank can be effectively ensured.

Description

Overflow device for water tank

Technical Field

The invention relates to the technical field of water tank closing devices, in particular to a water tank overflow device.

Background

The water tank (pool) is used as a water storage part of secondary water supply, and plays an important role in the aspects of ensuring the water supply safety and water supply capacity of residents, ensuring the water demand of users and the like. The pipe and accessories of the water tank (pool) comprise a manhole, a ventilation pipe, a vent pipe, an overflow pipe and the like, wherein the manhole, the ventilation pipe and the vent pipe are all provided with effective measures to prevent external pollution, and the overflow pipe has hidden trouble of being polluted by external substances. The overflow pipe needs to communicate the inside and the outside of the water tank (pool) due to the need of organically draining away redundant water flow, thereby being extremely easy to be polluted by the outside. The design code of water supply and drainage of buildings (GB 50015) stipulates that the overflow pipe should be a measure for preventing organisms from entering a water tank (pool). The organisms include dust-carrying objects (bacteria, viruses, spores and the like), mosquitoes, flies, reptiles, mice, sparrows and the like in the air, which can cause water quality hazards to the water tank (pool), so that measures for preventing external organisms from invading the overflow pipe are required.

The design code for water supply and drainage of buildings stipulates that the overflow pipe needs to be protected against living things, but no clear practice is given. The existing overflow pipe anti-biological method is mainly to arrange an anti-insect cover at the outlet of an overflow pipe, but the existing overflow pipe anti-biological method is not adopted in many projects due to the construction difficulty, and the water quality pollution cannot be avoided. If the total opening area of the insect-proof net is too large, the biological-proof effect cannot be achieved; if the overflow pipe is too small, the effective water passing area is reduced, so that the drainage capacity is reduced, smooth overflow cannot be ensured, and the overflow effect of the overflow pipe is weakened. In addition, even if the proper total opening area is adopted, because the meshes are directly communicated with the atmosphere, bacteria, viruses and the like carried by dust in the air cannot be blocked, and the safety requirement of secondary water supply quality cannot be met.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention provides the water tank overflow device which can effectively prevent external dust, fungus, organisms, insects, organisms and the like from entering the water supply water tank through the overflow port and can ensure the high-efficiency air permeability of the secondary water supply water tank.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a water tank overflow arrangement, including the connecting pipe, and with connecting pipe articulated rotating member, with the mounting panel that the rotating member is connected, and locate nanofiber membrane on the mounting panel, be equipped with a plurality of through-holes on the mounting panel.

As a further optimization of the present invention, the mounting plate comprises two oppositely disposed clamping plates, the nanofiber membrane is disposed between the two clamping plates, and the clamping plates are 30-mesh stainless steel nets.

As a further optimization of the invention, the mounting plate and the rotary member are connected by a quick-coupling buckle.

As a further refinement of the invention, the mounting plate extends in a direction away from the rotary member in the overflow direction.

As a further optimization of the present invention, the mounting plate forms an angle of 30 degrees with the radial direction of the connecting pipe.

As a further optimization of the invention, the device also comprises an elastic piece, two ends of which are respectively connected with the connecting pipe and the mounting plate.

As a further optimization of the present invention, the nanofiber membrane is polyvinylidene fluoride composite nanofiber.

As a further optimization of the invention, the connecting pipe is connected with the overflow pipe by means of a flange, a thread or a buckle.

Compared with the prior art, the invention has the beneficial effects that:

according to the water tank overflow device, when water in the water tank overflows, the mounting plate rotates to realize an overflow function, when the water in the water tank does not overflow, the mounting plate rotates to be closed, at the moment, external water, insects, sundries and the like cannot pass through the nanofiber membrane, but air can pass through, so that the functions of bacteriostasis, ventilation and insect prevention are effectively realized, the functions of ventilation and air permeation are realized, the problem that the existing overflow pipe cannot have insect prevention and dust prevention functions is effectively solved, and the water quality safety of a secondary water supply water tank can be effectively ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a tank overflow arrangement according to the present invention;

FIG. 2 is a schematic view of a portion of the structure of the rotary cover of the overflow device of the present invention;

in the above figures, 1, overflow pipe; 2. a flange; 3. a rotating member; 4. mounting a plate; 5. a nanofiber membrane; 6. an elastic member; 7. and (4) connecting the pipes.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-2, the present invention provides a tank overflow device, which includes a connection/7, a rotating member 3 hinged to the connection pipe 7, a mounting plate 4 connected to the rotating member 3, and a nanofiber membrane 5 disposed on the mounting plate 4, wherein the mounting plate 4 is provided with a plurality of through holes.

According to the water tank overflow device, when water in the water tank overflows, the mounting plate 4 rotates to realize an overflow function, when the water in the water tank does not overflow, the mounting plate 4 rotates to be closed, at the moment, external water, insects, sundries and the like cannot pass through the nanofiber membrane 5, but air can pass through, so that the functions of bacteriostasis, ventilation and insect prevention are effectively realized, the functions of ventilation and air permeation are realized, the problem that the existing overflow pipe cannot have the functions of insect prevention and dust prevention is effectively solved, and the water quality safety of a secondary water supply water tank can be effectively ensured.

With further reference to fig. 2, the mounting panel 4 includes two splint of relative setting, the nanofiber membrane 5 is located two between the splint, splint are 30 mesh stainless steel net, in this affairs example, splint preferably are 30 mesh 304L or 316L stainless steel net, for the parts of common use, easy to process, and simultaneously, structural strength also can be applicable to most of the cases, and 30 mesh also can block absolutely debris, prevents to damage nanofiber membrane 5, in this embodiment, the mounting panel 4 with the rotating member 3 is connected through the meet the buckle soon, easily installs and changes.

Further refer to fig. 1, mounting panel 4 is along keeping away from far away the direction of rotating member 3 extends to following the overflow direction, mounting panel 4 with the radial direction of connecting pipe 7 is 30 degrees contained angles, and both easy to assemble is more smooth, also can carry out timely quick reaction when the overflow, in time with unnecessary water discharge, simultaneously, in this embodiment, rotating member 3 locates connecting pipe 7 top, when the condition that does not have the overflow, even do not have other effort, mounting panel 4 also can be automatic opens when the overflow, closes when not having the overflow.

Furthermore, the device also comprises an elastic part 6, two ends of the elastic part are respectively connected with the connecting pipe 7 and the mounting plate 4, so that the opening and closing time of the mounting plate 4 is effectively ensured, the situation that sundries enter when the mounting plate 4 is not closed due to overlong opening or closing time is avoided, and in the embodiment, the time is preferably controlled within 1 s.

Furthermore, the nanofiber membrane 5 is polyvinylidene fluoride composite nanofiber, on one hand, the functional nanofiber membrane has high antibacterial activity, and the antibacterial activity values of the functional nanofiber membrane on staphylococcus aureus and escherichia coli are both greater than 3; on the other hand, the membrane has high air and water vapor permeability, according to GB/T1037-1988, the water vapor permeability of the membrane is 1825-2368 [ g/(m2.24h) ], according to GB/T1037-1997, the (air) air permeability of the membrane is 108-499 mm/s, according to GB 8808-: not peeled apart (peel force, N/15 mm).

Further, the connecting pipe 7 is connected with the overflow pipe 1 through a flange, a thread or a buckle, referring to fig. 2, in this embodiment, the connecting pipe 7 is connected with the overflow pipe 1 through a flange 2, so that the connection is firm and the installation is simple.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a water tank overflow arrangement, its characterized in that, including the connecting pipe, and with connecting pipe articulated rotating member, with the mounting panel that the rotating member is connected, and locate nanofiber membrane on the mounting panel, be equipped with a plurality of through-holes on the mounting panel.

2. The tank overflow device of claim 1, wherein the mounting plate comprises two opposing clamping plates, the nanofiber membrane is disposed between the two clamping plates, and the clamping plates are 30 mesh stainless steel mesh.

3. The tank overflow of claim 2, wherein the mounting plate and the swivel are connected by a snap-fit connection.

4. The tank overflow of claim 1, wherein the mounting plate extends in a direction away from the rotary member to an overflow direction.

5. The tank overflow of claim 4, wherein the mounting plate is angled 30 degrees from a radial direction of the connecting tube.

6. The tank overflow device of claim 4 or 5, further comprising an elastic member having both ends connected to the connection pipe and the mounting plate, respectively.

7. The tank overflow device of claim 1, wherein the nanofiber membrane is a polyvinylidene fluoride composite nanofiber.

8. The tank overflow of claim 1, wherein the connection tube is connected to the overflow tube by a flange, threads, or a snap fit.