CN211688545U

CN211688545U - Reverse osmosis membrane center tube, reverse osmosis membrane filter core and clean drink equipment

Info

Publication number: CN211688545U
Application number: CN202020065883.5U
Authority: CN
Inventors: 伍鼎文; 李国平; 丘春晖
Original assignee: Shenzhen Angel Drinking Water Equipment Co Ltd
Current assignee: Shenzhen Angel Drinking Water Equipment Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-10-16
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a reverse osmosis membrane center tube, reverse osmosis membrane filter core and clean drink equipment. This reverse osmosis membrane center tube including hollow center tube body, be located the pure water through-hole in the center tube body outside, be located the first end of center tube body and with the inside water inlet that does not link up of center tube body and be located the center tube body second end and with the inside pure water export that link up of center tube body, the inside compressible gasbag that is provided with of center tube body. The utility model discloses a shrink and the relaxation of the compressible gasbag in the reverse osmosis membrane center tube for after the pure drink equipment shut down, the mixed liquid of remaining intaking and waste water is replaced by the product water in the reverse osmosis membrane center tube in the reverse osmosis membrane filter core, consequently shut down the back reverse osmosis membrane and soak in product water (water purification), so after the start once more, the initial product water of machine is for normal work product water, thereby solved the high problem of a cup of water TDS that traditional reverse osmosis membrane pure drink equipment exists, effectively improve the taste and promote user experience.

Description

Reverse osmosis membrane center tube, reverse osmosis membrane filter core and clean drink equipment

Technical Field

The utility model relates to a pure water equipment technical field especially relates to a reverse osmosis membrane center tube, reverse osmosis membrane filter core and clean drink equipment.

Background

With the improvement of living standard, water purification products have become an indispensable part of life, and household reverse osmosis water purifiers have occupied 86% of the market share of water purification. The reverse osmosis membrane filter element assembly can be better in the dehydration salt and heavy metal, but reverse osmosis filters also has a fatal weak point, this is because the runner structure reason of reverse osmosis membrane filter element, when the purifier shut down the back, the pump stop work, reverse osmosis membrane's pressurization system disappears, salt and heavy metal ion in the concentrate runner of reverse osmosis membrane this moment pass through reverse osmosis membrane diffusion entering pure water one side because of the concentration difference on membrane both sides, finally get into reverse osmosis membrane module's center tube, in use the appearance is when the purifier shuts down the restart after a period of time, the initial product water (first glass of water) TDS (total solubility solid) after the user restarts the machine is too high. The consequence is that the quality of the drinking water produced by the user through the RO water purifier is reduced and the taste is not good.

Disclosure of Invention

The utility model aims to solve the technical problem that a reverse osmosis membrane center tube, reverse osmosis membrane filter core and clean drink equipment is provided, can solve the problem that the clean drink equipment first cup water TDS is high among the prior art, effectively improve the taste and promote user experience.

In order to solve the technical problem, the utility model discloses a as follows technical scheme:

the utility model provides a reverse osmosis membrane center tube, its is including hollow center tube body, be located the pure water through-hole in the center tube body outside, be located the first end of center tube body and with the inside water inlet that does not link up of center tube body and be located center tube body second end and with the inside pure water export that link up of center tube body, the inside compressible gasbag that is provided with of center tube body.

Preferably, the outer wall of the pure water outlet is provided with an annular groove for placing a sealing ring.

Preferably, the central tube body is made of an ABS material.

A reverse osmosis membrane filter core, its includes the shell and sets up the reverse osmosis membrane element in the shell, the shell is provided with into water passageway, dense water passageway and pure water passageway, reverse osmosis membrane element include as above reverse osmosis membrane center tube and winding be in the membrane bag on the center tube body of reverse osmosis membrane center tube.

The utility model provides a clean drink equipment, its is including booster pump, reverse osmosis membrane filter core, high pressure switch and the outlet valve of tube coupling in proper order, reverse osmosis membrane filter core's dense water passageway still is connected with the waste water ratio, reverse osmosis membrane filter core adopts foretell reverse osmosis membrane filter core.

Preferably, the clean drink equipment is still including leading filter core and rearmounted filter core, leading filter core with the water inlet tube coupling of booster pump, rearmounted filter core tube coupling in between reverse osmosis membrane filter core and the high pressure switch.

Preferably, the preposed filter element adopts a PP cotton filter element or an activated carbon filter element.

Preferably, the post-filter element is an activated carbon filter element.

The utility model has the advantages of: the contraction and the relaxation of the compressible air bag in the reverse osmosis membrane central tube enable the water purifying and drinking device to be replaced by the produced water in the reverse osmosis membrane central tube after being stopped, therefore, the reverse osmosis membrane is soaked in the produced water (purified water) after being stopped, and after the device is started again, the initial produced water of the machine is the normal working produced water, so that the problem that the TDS (total dissolved solids) of the first cup of water in the traditional reverse osmosis membrane water purifying and drinking device is high is solved, the taste is effectively improved, and the user experience is improved.

Drawings

Fig. 1 is a schematic structural view of the clean drinking device of the present invention;

FIG. 2 is a schematic perspective view of a central tube of a reverse osmosis membrane of the present invention;

fig. 3 is a longitudinal sectional view of the central tube of the reverse osmosis membrane of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1, in an embodiment of the present invention, the water purification device includes a pre-filter 301, a booster pump 302, a reverse osmosis membrane filter 303, a post-filter 304, a high-pressure switch 306, and a water outlet valve 307, which are sequentially connected by a pipeline, and the concentrated water channel of the reverse osmosis membrane filter 303 is further connected to a wastewater ratio 305. The front filter element 301 adopts a PP cotton filter element or an active carbon filter element; the post-filter element 304 is an activated carbon filter element. It should be noted that, in other embodiments of the present invention, the pre-filter 301 and the post-filter 304 may not be included in the clean water device.

The reverse osmosis membrane filter element 303 comprises a shell and a reverse osmosis membrane element arranged in the shell, wherein the shell is provided with a water inlet channel, a concentrated water channel and a pure water channel, and the reverse osmosis membrane element comprises a reverse osmosis membrane center tube and a membrane bag wound on a center tube body of the reverse osmosis membrane center tube.

As shown in fig. 2 and 3, the reverse osmosis membrane central tube 100 includes a hollow central tube body 101 made of ABS material, a pure water through hole 102 located outside the central tube body 101, a water inlet 106 located at a first end of the central tube body 101, and a pure water outlet 105 located at a second end of the central tube body 101, and a compressible air bag 103 is disposed inside the central tube body 101.

The pure water outlet 105 is connected with a pure water channel of the shell of the reverse osmosis membrane filter element 303, and is communicated with the interior of the central tube body 101, an annular groove 107 is further formed in the outer wall of the pure water outlet 105, and a sealing ring is arranged in the annular groove 107 and used for achieving sealing connection between the pure water outlet 105 and the pure water channel of the shell. The water inlet 106 is connected with a water inlet channel of the shell of the reverse osmosis membrane filter element 303, and is not communicated with the inside of the central tube body 101. The inlet water enters the water inlet 106 from the water inlet channel of the shell and then flows into the space between the membrane bags from the through holes 108 on both sides of the water inlet 106; the inlet water between the membrane bags enters the central tube body 101 from the pure water through hole 102 through permeation and diffusion, and then flows out to enter the next stage of filter element through the pure water outlet 105 and the pure water channel of the shell.

The utility model discloses a when the normal system water of clean drink equipment, compressible gasbag 103 is the ordinary pressure state of relaxing this moment. After the user finishes taking water, the water outlet valve 307 is closed, the booster pump 302 continues to operate, the pressure of the water producing waterway of the reverse osmosis membrane filter element 303 is gradually increased, the compressible air bag 103 in the reverse osmosis membrane central tube 100 is compressed and contracted, the gap 104 between the inner wall of the central tube body 101 and the outer wall of the compressible air bag 103 is increased at the moment, and the water storage volume of the central tube body 101 is increased. When producing water waterway pressure and rising to high tension switchgear 306 threshold value, booster pump 302 stop operation, waterway pressure reduces gradually afterwards, compressible gasbag 103 resumes gradually, extrude the water of production that stores up in the center tube body 101 through pure water through-hole 102 and finally extrude the mixed liquid of remaining intaking between the membrane bag and waste water, make reverse osmosis membrane soak in production water (pure water), the event is started again after the shut down and is produced water TDS when first cup of water TDS is close normal work system water, thereby show the TDS who reduces first cup of water, effectively improve the taste and promote user experience.

The foregoing is considered as illustrative of the preferred embodiments of the invention and is not intended to limit the invention in any way. Various equivalent changes and modifications can be made on the basis of the above embodiments by those skilled in the art, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.

Claims

1. A reverse osmosis membrane center tube which characterized in that: the reverse osmosis membrane center tube including hollow center tube body, be located the pure water through-hole in the center tube body outside, be located the first end of center tube body and with the inside water inlet that does not link up of center tube body and be located the center tube body second end and with the inside pure water export that link up of center tube body, the inside compressible gasbag that is provided with of center tube body.

2. The reverse osmosis membrane center tube of claim 1, wherein: the outer wall of the pure water outlet is provided with an annular groove for placing a sealing ring.

3. The reverse osmosis membrane center tube of claim 2, wherein: the central tube body is made of ABS materials.

4. A reverse osmosis membrane filter core which characterized in that: the reverse osmosis membrane filter element comprises a shell and a reverse osmosis membrane element arranged in the shell, wherein the shell is provided with a water inlet channel, a concentrated water channel and a pure water channel, and the reverse osmosis membrane element comprises a reverse osmosis membrane central tube as claimed in any one of claims 1 to 3 and a membrane bag wound on a central tube body of the reverse osmosis membrane central tube.

5. A clean drink apparatus, characterized by: the pure drinking equipment comprises a booster pump, a reverse osmosis membrane filter element, a high-pressure switch and a water outlet valve which are sequentially connected through pipelines, wherein a concentrated water channel of the reverse osmosis membrane filter element is also connected with a wastewater ratio, and the reverse osmosis membrane filter element adopts the reverse osmosis membrane filter element as claimed in claim 4.

6. The clean beverage apparatus of claim 5, wherein: the water purification and drinking equipment further comprises a front filter element and a rear filter element, the front filter element is connected with a water inlet pipeline of the booster pump, and the rear filter element is connected between the reverse osmosis membrane filter element and the high-pressure switch through a pipeline.

7. The clean beverage apparatus of claim 6, wherein: the front filter element adopts a PP cotton filter element or an active carbon filter element.

8. The clean beverage apparatus of claim 7, wherein: the post-positioned filter element adopts an activated carbon filter element.