CN113713622A

CN113713622A - Adapter

Info

Publication number: CN113713622A
Application number: CN202111196840.6A
Authority: CN
Inventors: 冯少贺; 杨云江; 李丽娜; 刘青; 郝红; 王玮
Original assignee: Shandong Fengna Environmental Protection Technology Co ltd
Current assignee: Shandong Fengna Environmental Protection Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2021-11-30

Abstract

The invention provides an adapter, wherein circular tube parts are arranged at two ends of the adapter, the diameter of a tube body of the adapter, which is matched and sealed with a purified water outlet, is smaller than that of the tube body of the adapter, which is matched and sealed with a membrane shell, the length of a connecting and sealing matching section of the adapter and the membrane shell is smaller than that of the sealing and matching section of the purified water outlet, a step in the middle of the adapter is matched with a circular tube-shaped skirt at the tail part of the purified water outlet to form a water filling cavity, a plurality of overflow channels are arranged on the skirt edge of the purified water outlet, the overflow channels can be of equal section or variable section, and the bottom of the overflow channels is provided with a plurality of overflow water and exhaust small holes. The adapter provided by the invention can automatically adapt to the contraction of the membrane element and buffer the expansion impact of the membrane element, so that the phenomenon that the adapter is separated from the membrane element or a purified water outlet causes the inner leakage of a membrane shell is prevented, or the damage of parts caused by the contraction rebound of the membrane element is reduced.

Description

Adapter

Technical Field

The invention relates to the technical field of membrane water treatment, in particular to an adapter which automatically adapts to membrane element shrinkage and buffers membrane element expansion impact.

Background

The connection mode of the membrane shell adapter, the purified water outlet and the membrane element for water treatment at present has the following defects:

firstly, when the membrane element shrinks under the action of the internal pressure of the membrane shell, the adapter is separated from the membrane element to cause internal leakage; as shown in the left pictures of 4 and 5. The installation of the traditional adapter needs to additionally install a plurality of gaskets 7 between the purified water outlet 1 and the adapter 2, so that a gap formed by component tolerance between the sealing end plate 4 of the membrane shell 3 and the membrane element 6 is filled as much as possible, and therefore the phenomenon that after water with pressure P1 enters the membrane shell through the side port 5, the adapter 2 moves towards the sealing end plate 4 under the pushing of pressure difference P1-P2, and the membrane element 6 moves reversely when the pressure difference occurs, so that the adapter is separated from a central tube of the membrane element 6, or a sealing ring on the adapter slides to a flaring area at the end part of the central tube, sealing failure is caused, and internal leakage occurs. Meanwhile, due to the combined size of the adapter and the purified water outlet, the excessive gap cannot be filled by increasing the number of the gaskets 7.

When the membrane element is reduced in pressure and is recovered to be elongated, the adapter and the purified water outlet are impacted, the problems of component damage or cracking of a central tube of the membrane element and the like are caused, and when the system is shut down, the high-pressure pump stops working. The pressure inside the membrane housing is restored from P1 to the normal pressure P0, at which point the membrane element is restored from a compressed state, and since the adapter is now separated from the membrane element, the membrane element expands rapidly, and its central tube section will impact the adapter and thus the purified water outlet.

Therefore, it is desirable to design an adapter that automatically accommodates membrane element contraction and cushions membrane element expansion impact to solve the above-mentioned problems.

Disclosure of Invention

The invention aims to provide an adapter, which can be always attached to a membrane element during working by matching the diameter and length design of the installation sections at the two ends of the adapter, so that the change of the internal clearance of a membrane shell is compensated. Meanwhile, the water filling cavity formed by matching the middle section of the adapter with the skirt edge of the purified water outlet is utilized, the compressed membrane element is controlled to drain water when rebounding, the moving speed of the membrane element and the adapter is reduced, and the impact on each part is reduced.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an adapter, the pipe part at adapter both ends, the body diameter that adapter and pure water export cooperation are sealed is less than its and the sealed body diameter of membrane shell cooperation.

Preferably, the length of the sealing matching section of the adapter and the membrane shell is smaller than that of the sealing matching section of the purified water outlet.

Preferably, the step in the middle of the adapter is matched with the circular tubular skirt at the tail of the purified water outlet to form a water filling cavity, the skirt of the purified water outlet is provided with a plurality of overflow channels, the overflow channels can be of uniform sections or variable sections, and the bottom of the overflow channels is provided with a plurality of overflow and exhaust small holes.

The invention provides an adapter. The method has the following beneficial effects:

1. the adapter can be always attached to the membrane element when in work through the diameter and length design of the matching installation sections at the two ends of the adapter, and the change of the internal clearance of the membrane shell is compensated. Meanwhile, the water filling cavity formed by matching the middle section of the adapter with the skirt edge of the purified water outlet is utilized, the compressed membrane element is controlled to drain water when rebounding, the moving speed of the membrane element and the adapter is reduced, and the impact on each part is reduced.

Drawings

FIG. 1 is a three-dimensional, cross-sectional and isometric view of an adapter of the present invention;

FIG. 2 is a three-dimensional, cross-sectional and isometric view of a clean water outlet of the present invention;

FIG. 3 is an adapter installation view of the present invention;

FIG. 4 is a comparative illustration of the installation of the present invention;

fig. 5 is a comparative illustration of the working principle of the present invention.

In the figure: 1 purified water outlet, 2 adapters, 3 membrane shells, 4 sealing end plates, 5 side openings, 6 membrane elements and 7 gaskets.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

in the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-5, the diameter of the pipe body of the adapter, which is matched and sealed with the purified water outlet, is smaller than that of the pipe body, which is matched and sealed with the membrane shell, of the round pipe parts at the two ends of the adapter.

In fig. 1, the pipe diameter D1 of the sealing installation section of the adapter and the purified water outlet is smaller than the pipe diameter D3 of the sealing installation section of the adapter and the central pipe of the membrane element, and meanwhile, the section D1 is longer than the section D3.

The pipe diameter D1 end of the adapter is matched with the pure water outlet shown in figure 2, the pure water outlet is provided with a skirt edge, and the skirt edge is provided with a flow channel C and an exhaust pressure relief hole B. As shown in figure 3, the middle section D2 of the adapter is matched with the skirt part of the purified water outlet to form a water filling chamber A, and the pipe diameter D3 end of the adapter is matched with the central pipe of the membrane element.

As shown in the right schematic view of FIG. 5, since D1 is less than D3, the adapter will cling to the membrane element center tube and move with the membrane element contraction driven by the pressure differential P1-P2 between the membrane housing internal pressure P1 and the center tube internal pressure P2. The sealing between the adapter and the membrane element is ensured. Meanwhile, the longer D1 section of the adapter can provide enough compensation length to ensure the sealing between the adapter and the purified water outlet. At the moment, the cavity A is filled with water through the small hole C and the flow channel B and is lengthened, and the adapter can be always attached to the membrane element when in work through the diameter and length design of the matching installation sections at the two ends of the adapter, so that the change of the internal clearance of the membrane shell is compensated. Meanwhile, the water filling cavity formed by matching the middle section of the adapter with the skirt edge of the purified water outlet is utilized, the compressed membrane element is controlled to drain water when rebounding, the moving speed of the membrane element and the adapter is reduced, and the impact on each part is reduced.

When the membrane shell releases pressure, the membrane element rebounds and extends to push the adapter to move towards the direction of the purified water outlet. At the moment, water in the cavity A is discharged through the small holes C and the flow channel B, the rebound speed of the membrane element is controlled due to the fact that the flow is limited by the small holes and the size of the flow channel, and damage to parts caused by fast rebound impact on the parts is avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The adapter is characterized in that the diameters of pipe bodies of circular pipe parts at two ends of the adapter and a purified water outlet in a matched and sealed mode are smaller than the diameters of the pipe bodies in the matched and sealed mode and a membrane shell.

2. An adapter as claimed in claim 1, wherein: the adapter is connected with the membrane shell and is sealed the length that the cooperation section is less than with the sealed cooperation section of water purification export.

3. An adapter as claimed in claim 1, wherein: the step in the middle of the adapter is matched with the circular tube-shaped skirt at the tail part of the purified water outlet to form a water filling cavity, a plurality of overflow channels are arranged on the skirt of the purified water outlet, the overflow channels can be of uniform sections or variable sections, and the bottom of the overflow channels is provided with a plurality of overflow water and exhaust small holes.