CN2437394Y

CN2437394Y - Film separating device

Info

Publication number: CN2437394Y
Application number: CN 00238132
Authority: CN
Inventors: 吕晓龙
Original assignee: MOTIANMO ENGINEERING TECHNOLOGY Co Ltd TIANJIN
Current assignee: MOTIANMO ENGINEERING TECHNOLOGY Co Ltd TIANJIN
Priority date: 2000-07-05
Filing date: 2000-07-05
Publication date: 2001-07-04
Anticipated expiration: 2010-07-05

Abstract

The utility model relates to a film separating device, which comprises a film component, a valve, a pressure gauge and a pump. The utility model is characterized in that a pipeline between a filtrate valve 14 and a filtration outlet 3 is coupled in an air valve 7 and an air source 8 successively. By utilizing an air path provided additionally, the utility model can rapidly, conveniently and conditionally detect out the damaged film component on line, so the production efficiency is greatly improved.

Description

A kind of membrane separation device

The utility model relates to membrane separation device, is specially to detect the hollow fiber membrane separation device that damages membrane module, and international Patent classificating number intends being B01D 65/10.

Membrane separation technique and device now have been widely used in the industrial circles such as chemical industry, medicine, food, beverage, water treatment, are important a kind of in the modern technologies.In practical application in industry, according to the difference for the treatment of capacity, general membrane separation device all need and connect by several～tens independent hollow fiber film assemblies to be formed.In use, if the membrane separation device of this structure any hollow fiber film assembly wherein damages, the capital makes the filtrate muddiness, directly influence product quality, therefore, must interruption stop in other words producing, clear up underproof filtrate, change the membrane module that damages, just can return to normal production then.Because the quality and the use aspect of hollow fiber film assembly, this problem is difficult to avoid at present.Further problem is: how to judge by several～tens independent hollow fiber film assemblies and connect in the membrane separation device of forming which or which hollow fiber film assembly damage, the membrane module that needs replacing or repairing in other words conj.or perhaps? so that dismantle targetedly and change or repair the membrane module that has damaged, return to normal production as soon as possible.It is reported, this still there is not at present good plan, concrete way can only be stupid way, promptly one one disassembles membrane module in other words seriatim, one one test seriatim in other words, until having detected all membrane modules, just can judge which or which be to need the membrane module that has damaged changing or repair.This method is time-consuming, consumption power, poor efficiency, directly influences ordinary production, but people are accustomed to like nothing to be surprised at, does not think that it is the open defect that membrane separation device exists.

The purpose of this utility model is exactly the above-mentioned defective at existing membrane separation device, provide a kind of quick, easy, online efficient detection goes out to damage the membrane separation device of membrane module targetedly.

The purpose of this utility model is following realization: at existing membrane separation device, comprise on the member bases such as membrane module, valve, Pressure gauge and pump, it is characterized in that filtrate valve order pipe to the arbitrary position of pipeline that leaches between the mouth inserts air valve and source of the gas; Simply say, promptly to the arbitrary position of pipeline that leaches between the mouth, manage access one cover gas circuit in filtrate valve.When finding the filtrate muddiness, when needing to do to detect, only need close feed liquor valve and liquid valve earlier, open air valve again, connect source of the gas, utilize air pressure on-line quick detection to go out the membrane module that has damaged.

The utility model is on the basis of existing membrane separation device, has only increased a cover gas circuit of being made up of source of the gas and air valve, thereby has had characteristic of simple structure; During use, only need controlled valve, just can detect the membrane module that has damaged, thereby have characteristics easy to use; Particularly needn't all dismantle membrane separation device, need not check membrane module one by one, thereby also have online detection and characteristics fast and efficiently.Test shows that the existing membrane separation device of forming with 40 membrane modules is done one-time detection, needs 2～3 hours approximately; And the utility model membrane separation device of same radical is done similar detection, then only needs 5～10 minutes.Efficient during its online detects, and be used to produce the production efficiency of interrupting recovering and improving a large amount of detection times of being saved, all fully confirmed good effect of the present utility model.

Be described in further detail the utility model below in conjunction with embodiment and accompanying drawing thereof:

Fig. 1 is the schematic diagram of a kind of external pressure membrane separation device of the utility model embodiment.

The utility model is at existing external pressure membrane separation device, comprise on the basis of members such as membrane module, valve, Pressure gauge and pump, to the arbitrary position of pipeline that leaches between the mouth 3, design has increased the air valve 7 and the source of the gas 8 (referring to Fig. 1) of pipe access in proper order in filtrate valve 14; Simply say, promptly to the pipeline that leaches between the mouth 3, manage access one cover gas circuit in filtrate valve 14.So-called " arbitrary position " is meant that the assembly that is increased maintains and manipulates structural design, the installation of membrane separation device all is scientific and reasonable position.

In the time of in working order (referring to shown in Figure 1), charging pump 10 pumps feed liquid from batch can 11, squeezes in the inlet 4 (at this moment, air valve 7 is in closed condition) by feed liquor valve 6 and the inlet hydraulic table 12 opened, and then injects each membrane module 1 and carry out the film separation; See through liquid from leaching mouthful 3 outflows; Filtered solution then flows out from liquid outlet 2, again among fluid Pressure gauge 13 and liquid valve 5 are back to material liquid tank 11.

Any one or several membrane modules 1 damages in membrane separation device, filter liquor sees through liquid in other words and occurs muddy, when detecting (hereinafter to be referred as detected state or) should stop when checking, the staff only needs to close feed liquor valve 6, filtrate valve 14 and liquid valve 5 in order earlier, and work feed liquid loop is interrupted; Open air pressure valve 7 and source of the gas 8 again, suitable compressed air is squeezed into leach in mouthfuls 3, and then inject hollow-fibre membrane inner chamber among each membrane module 1, carry out air pressure and detect.According to the permeable air-locked principle of working film, good membrane module 1 can not breathed freely, and has blocked outlet gas flow; Air-flow will inevitably flow out from the ventilative membrane module that promptly damages 1 from seeking its outlet.So, have only and damage that or those membrane module 1 just can be breathed freely, bubbling.The staff be easy in the shell of transparent membrane module 1 (being generally transparent lucite tube, polysulfones pipe or Merlon pipe), observe be which or which be to need the membrane module that has damaged 1 changing or repair, thereby only need dismantle it or they targetedly, replace with new membrane module 1, perhaps shut the membrane module 1 (shutting membrane module 1 own or its feed liquid inlet that has damaged) of damage temporarily, can easyly, quick and online finish detection and maintenance work efficiently, promptly return to normal production.

Source of the gas 8 described in the utility model can be provided by supporting air pump, also can be without air pump, but provide by the gas station that the user provides for oneself.When adopting the air pump air feed, itself and membrane separation device constitute an integral body, or perhaps an one composition parts.Certainly, adopt during detection the interim method air feed that inserts source of the gas 8 also can.The air pressure range that source of the gas 8 uses is 0.02～0.20 Mpa, and air pressure preferably commonly used is 0.05～0.10MPa.The compressed air that general air pump or gas station provide all has Pressure gauge to indicate the size of its supply gas pressure, so that the user regulates as required.But for convenience and for the purpose of the safety, further feature of the present utility model be air valve 7 with the pipeline that leaches between mouthfuls 3 on access air gauge 9.See in the air feed direction that promptly air gauge 9 is inserted in the back of air pressure valve 7, detect the height of air pressure with the reality indication.

Claims

1. a membrane separation device comprises membrane module, valve, Pressure gauge and pump, it is characterized in that filtrate valve (14) order pipe to the arbitrary position of pipeline that leaches between mouthful (3) inserts air valve (7) and source of the gas (8).

2. membrane separation device according to claim 1 is characterized in that air valve (7) and leaches on the pipeline between mouthful (3) inserting air gauge (9).