Without the constraint fiber bundle filter
The utility model relates to a kind of filter that is built-in with fibre bundle, particularly relates to a kind of nothing constraint fiber bundle filter that need not mechanical part anchoring fiber bundle and can improve filter efficiency.
Fabric filter is a kind of filter commonly used in the water treatment technology, requires the fibre bundle in the filter to be in closest packing state when using it to filter, to reach good filter effect; Then require fibre bundle to be loose condition (of surface) when carrying out backwash, to guarantee the dirt flushing thoroughly.
At present, for solving the normal method of using of above-mentioned contradiction: a kind of is the capsule that utilizes in the filtering tank, to the capsule water-filling, discharges water during backwash during filtration, controls the tight and loose condition (of surface) of fibre bundle by the variation of capsule volume; Another kind be in tank body by mechanical part to the fibre bundle application of force, so that fibre bundle compresses or loosens.The shortcoming of these two kinds of methods is that filtration device structure is complicated, volume is large, fault rate is high, cost is high, and fibre bundle is changed wastes time and energy, difficult in maintenance.Especially when filtering high turbidity high hardness water, owing to the aging deformation velocity of fiber is accelerated to need the frequent fibre bundle, at this moment, it is more outstanding that the problems referred to above become.
The utility model content
In view of the foregoing, the purpose of this utility model is to provide a kind of and need not mechanical part anchoring fiber bundle and then can simplify filtration device structure, dwindle its volume, and is simple and convenient when changing fibre bundle, and can improve filter efficiency without the constraint fiber bundle filter.
For achieving the above object, the utility model is by the following technical solutions:
A kind of without the constraint fiber bundle filter, comprise pillar, bottom manhole, low head, tank body, upper cover, exhaust outlet, water inlet, top manhole, delivery port, water distributing plate, fibre bundle accumulation horizon, porous plate, water fender, it is characterized in that: described fibre bundle accumulation horizon is made of the fibre bundle of some free accumulation on described porous plate.
Described tank base is provided with recoil valve and drain valve, and this recoil valve and this drain valve are communicated with described tank interior by described delivery port.
The two ends of described fibre bundle break into fast knot, and fibre bundle length determines according to described tank body volume size and filtered water flow.
The utility model has the advantage of:
The utility model is without the constraint fiber bundle filter, need not mechanical part anchoring fiber bundle and just can realize the control of and loose condition (of surface) tight to fibre bundle, simplified filtration device structure, dwindled filter volume, change and also very simple and convenient when safeguarding fibre bundle, and the reliability when having improved the filter efficiency of filter and operation thereof.
Description of drawings
Fig. 1 is the structural representation without the constraint fiber bundle filter of the present utility model;
Fig. 2 is the cross-sectional schematic without the constraint fiber bundle filter of the present utility model;
Fig. 3 is the schematic diagram of fibre bundle in the utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the structural representation without the constraint fiber bundle filter of the present utility model; Fig. 2 is the cross-sectional schematic without the constraint fiber bundle filter of the present utility model.As shown in the figure, of the present utility model without the constraint fiber bundle filter, comprise several pillars 1 for supporting filter, bottom manhole 2, low head 3, tank body 4, upper cover 5, exhaust outlet 6, water inlet 7, top manhole 8, delivery port 11, water distributing plate 12, fibre bundle accumulation horizon 13, porous plate 14, water fender 15;
For being implemented in smoothly the conversion between filtration condition and recoil state, tank body 4 bottoms are provided with recoil valve 9 and drain valve 10, and this recoil valve 9 and this drain valve 10 are by delivery port 11 and tank body 4 internal communication.
When filtering, pending water enters from water inlet 7, and water distributing plate 12 scatters water and comes, and after filtering through fibre bundle accumulation horizon 13, discharges from delivery port 11.
In the filtration treatment later stage because discharge obviously descends, can then carry out backwash and process.At this moment, to sneak into the compressed-air actuated backwashing water of q.s by recoil valve 9 in delivery port 11 pours into filter tank body 4 fast, at this moment, originally closelypacked fibre bundle is because the bubble that is upwards risen and water picking-up, and become fluffy state, the pollutant that is retained down by fibre bundle during filtration begins to split away off from fibre bundle, and along with current are discharged from the water inlet 7 of filter top.
After the backwash processing finishes, fibre bundle drops to tank body 4 bottoms and returns to filtration condition, fibre bundle can roughly be evenly distributed in the bottom of filter in the decline process, as long as the ulking thickness of fibre bundle is enough, fibre bundle is in compact state and effectively tackles impurity in the pending water in the time of just can guaranteeing filtration condition.Fig. 3 is the schematic diagram of fibre bundle in the utility model, and as shown in the figure, the fibre bundle that uses in the utility model is to be made of macromolecular fibre, and the two ends of every bundle fiber are broken into fast knot, and fibre bundle length can be according to filter volume size and the decision of filtered water flow.
In order to save backwashing time, reduce the consumption of backwashing water, use the utility model after backwash a period of time (this moment, most of dirt split away off from fibre bundle), just can close recoil valve 9 that backwashing water enters and enter in the tank 4 to stop compressed air and water from delivery port 11, meanwhile, open drain valve 10, tank body 4 interior water with dirt are emitted through delivery port 11 and drain valve 10.
When needs were changed fibre bundle, free accumulation was changed and get final product so directly open top manhole 8 in tank body 4 because fibre bundle there is no that mechanical part is fixed, and maintenance is got up very simple and convenient.
Of the present utility model without the constraint fiber bundle filter, by recoil valve and drain valve are set in filter bottom, in tank body, pour into fast compressed air and backwashing water through delivery port by recoil valve during backwash, rise and become loose condition (of surface) so that originally be in the fibre bundle of closest packing state, with the compact state that reaches fibre bundle and the conversion between the loose condition (of surface).Owing to need not to use mechanical part anchoring fiber bundle, of the present utility model without constraint fiber bundle filter simple in structure, small volume not only, change and very simple and convenient when safeguarding fibre bundle, and the reliability can improve the filter efficiency of filter and operation thereof the time.
The above is preferred embodiment of the present utility model and the know-why used thereof; for a person skilled in the art; in the situation that does not deviate from spirit and scope of the present utility model; any based on apparent changes such as the equivalent transformation on the technical solutions of the utility model basis, simple replacements, all belong within the utility model protection domain.