CN201284254Y

CN201284254Y - Membrane mixed type low pollution water treatment device

Info

Publication number: CN201284254Y
Application number: CNU2008201635276U
Authority: CN
Inventors: 钱峰; 刘寅; 李小生; 尹华丽
Original assignee: ZHEJIANG YUQUAN ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: ZHEJIANG YUQUAN ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2008-09-04
Filing date: 2008-09-04
Publication date: 2009-08-05
Anticipated expiration: 2018-09-04

Abstract

The utility model relates to a mixed type membrane water treatment device with low pollution, which comprises a raw water tank, a high pressure pump, a purified water tank, a mixed type reverse osmosis membrane device and a drain opening, wherein, the high pressure pump and the purified water tank are connected with a pipeline of the raw water tank; the drain opening is connected with a pipeline of the mixed type reverse osmosis membrane device; and the mixed type reverse osmosis membrane device is respectively connected with the high pressure pump and the purified water tank through pipelines. Because of the adoption of a mixed type membrane element structure, compared with the ordinary water treatment device, the utility model has the advantages of wide flow passage and difficult scale formation at the same level of water production amount, the number of times for chemical cleaning is greatly reduced, and the cleaning effect is improved. When both the utility model and the ordinary treatment device require a low scale formation rate, the utility model improves the water production amount. So the utility model improves the water production amount, and has difficult scale formation, and membrane elements do not need frequent chemical cleaning while improving the water production amount, so the service life of the membrane elements is prolonged, and the failure rate and the running cost are further reduced.

Description

A kind of film mixed type low-pollution water treater

Technical field

The utility model relates to a kind of water treatment device, relates in particular to a kind of film mixed type low-pollution water treater.

Background technology

At present, reverse osmosis unit is a kind of common membrane separation unit in water treatment system.Reverse osmosis technology, its principle are under the effect that is higher than solution osmotic pressure, can not and these materials and water sepn be come through semi-permeable membranes according to other materials, to obtain high-quality pure water.Film in the reverse osmosis system in first section often is not easy fouling, and forms fouling easily because the saltiness of water rises in the section of end.In the design of the water treatment system of prior art, often in same system, adopt the reverse osmosis membrane of same brand, model usually, because each membrane element has different effective film area, water production rate, width of flow path, so following situation can occur: a kind of is that the effective film area is big, width of flow path is narrow, water production rate height, but easily fouling are difficult to clean because of the inlet conduit width is narrow; Another is that the effective film area is little, and width of flow path is wide, and water production rate is lower, and width of flow path is wide than easy cleaning after the fouling.So, take into account if adopt the reverse osmosis membrane of single model just to be difficult to both, promptly be difficult in when guaranteeing the high yield water yield, also the easy situation of cleaning of the fouling of may command reverse osmosis face, or solve scale problems by frequent matting, but can shorten the life-span of film; In order to reach the desired water production rate of client, need to drop into more reverse osmosis membrane and come design system.Like this, both increase the failure rate of system, improved its running cost again.

Summary of the invention

Technical problem to be solved in the utility model is to provide at above-mentioned prior art present situation that a kind of cost is low, water production rate is high, and easy cleaning and less scaling film mixed type low-pollution water treater.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of film mixed type low-pollution water treater, comprise a raw water box, a pure water case, one with the high-pressure pump of described raw water box pipe connection, it is characterized in that: also comprise a mixed type reverse osmosis membrane apparatus, described mixed type reverse osmosis membrane apparatus pipe connection one sewage draining exit; Described mixed type reverse osmosis membrane apparatus is described high-pressure pump of pipe connection and pure water case respectively.

Described mixed type reverse osmosis membrane apparatus is made up of first membrane module, second membrane module, tertiary membrane assembly; After described first membrane module and second membrane module connected with pipeline is in parallel, pipe connection was to described pure water case again; Described first membrane module and second membrane module are connected in series with pipeline with the tertiary membrane assembly after connecting with pipeline is in parallel, and pipe connection is to described pure water case again.

Compared with prior art, advantage of the present utility model is, because it has adopted the structure of hybrid films element, compare with medium-sized water treatment device, if both water production rates roughly require to reach same level, the utility model has then been brought into play wide, the less scaling advantage of membrane element runner in the tertiary membrane assembly more, greatly reduces the number of times of matting, and improves cleaning performance; If compare with the coventional type water treatment device, the both requires lower fouling rate, has so of the present utility modelly then brought into play the high advantage of membrane element water production rate in first, second membrane module more, has improved the water production rate of entire treatment device greatly.Like this, the utility model just can so that water production rate and less scaling both take into account, and will the frequent matting of membrane element when promoting water production rate, make the life-span of membrane element increase, and then reduced the failure rate and the running cost of system.

Description of drawings

Fig. 1 is the structured flowchart of the utility model embodiment.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, a kind of film mixed type low-pollution water treater comprises the high-pressure pump 2 of a raw water box 1, a pure water case 4, one and described raw water box 1 pipe connection, also comprise a mixed type reverse osmosis membrane apparatus 3, described mixed type reverse osmosis membrane apparatus 3 pipe connection one sewage draining exit 5; Described mixed type reverse osmosis membrane apparatus 3 is described high-pressure pump 2 of pipe connection and pure water case 4 respectively;

Described mixed type reverse osmosis membrane apparatus 3 is made up of first membrane module 31, second membrane module 32, tertiary membrane assembly 33; After described first membrane module 31 and the parallel connection of second membrane module, 32 usefulness pipelines connected, pipe connection was to described pure water case 4 again; After described first membrane module 31 and the parallel connection of second membrane module, 32 usefulness pipelines connect, be connected in series with tertiary membrane assembly 33 usefulness pipelines, pipe connection is to described pure water case 4 again;

Each one of the reverse-osmosis membrane element of the narrow easily fouling of high yield water yield runner is housed in described first membrane module 31, second membrane module 32, one of the lower but wide less scaling reverse-osmosis membrane element of runner of water production rate is housed in the tertiary membrane assembly 33.

The utility model principle of work is as follows:

Send into raw water box 1 as former water through pipeline from the pretreated water that pretreatment system obtains, former water flows into mixed type reverse osmosis membrane apparatus 3 by raw water box 1 and high-pressure pump 2, in this treater, former water branch flows into first membrane module 31 and second membrane module 32, treated, the dense water of the dense water of first membrane module 31 and second membrane module 32 flows into tertiary membrane assembly 33 through pipeline, and the dense water after tertiary membrane assembly 33 is handled arrives sewage draining exit 5 through discharge of pipes; The output water of first membrane module 31, second membrane module 32, tertiary membrane assembly 33 is linked respectively by house steward's piping system, delivers to pure water case 4.

Claims

1, a kind of film mixed type low-pollution water treater, comprise a raw water box (1), a pure water case (4), one with the high-pressure pump (2) of described raw water box (1) pipe connection, it is characterized in that: also comprise a mixed type reverse osmosis membrane apparatus (3), described mixed type reverse osmosis membrane apparatus (3) pipe connection one sewage draining exit (5); Described mixed type reverse osmosis membrane apparatus (3) is described high-pressure pump of pipe connection (2) and pure water case (4) respectively.

2, film mixed type low-pollution water treater as claimed in claim 1, it is characterized in that: described mixed type reverse osmosis membrane apparatus (3) is made up of first membrane module (31), second membrane module (32), tertiary membrane assembly (33); After described first membrane module (31) and second membrane module (32) connected with pipeline is in parallel, pipe connection was to described pure water case (4) again; Described first membrane module (31) and second membrane module (32) are connected in series with pipeline with tertiary membrane assembly (33) after connecting with pipeline is in parallel, and pipe connection is to described pure water case (4) again.