CN202538507U

CN202538507U - Novel softened water filter tank

Info

Publication number: CN202538507U
Application number: CN2012200331049U
Authority: CN
Inventors: 郭栓太; 姚克明
Original assignee: Shanxi Taigang Stainless Steel Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2012-02-02
Filing date: 2012-02-02
Publication date: 2012-11-21
Anticipated expiration: 2022-02-02

Abstract

The utility model relates to a novel softened water filter tank, which belongs to a boiler softened water treatment facility and consists of a salt storage tank and a filter tank, wherein one side wall of the salt storage tank is communicated with a water inlet pipe, a water passing pipe is arranged in the salt storage tank, the water passing pipe passes through a separation wall between the salt storage tank and the filter tank to be introduced into the filter tank, cobblestone and quartz sand are arranged in the filter tank, a water filter tank is arranged under the filter tank, the top of the water filter tank is provided with a filter plate, water filter holes are uniformly distributed on the filter plate, and the filter tank is provided with a water discharge pipes. The novel softened water filter tank has the advantages that the work procedure for flushing a salt solution filter is omitted, a large amount of strong salt brine and softened water is saved, the operation is simple and convenient, and the outlet water is clean. Meanwhile, the filter impurity removal can also be realized on saturated salt solution, and the pollution caused during the ion exchanger regeneration is avoided.

Description

Novel demineralized water filtering ponds

Technical field

The utility model belongs to boiler demineralized water treatment facility, is specifically related to a kind of novel demineralized water filtering ponds.

Background technology

Power plant boiler make-up water treatment system mainly is made up of lime clarifier+double-current filter+secondary Na-ion exchanger; Through the lime clarifier in order to remove temporary hardness, basicity, the suspension in the unboiled water; Filter is in order to further to remove suspension and the part iron ion in anhydrating; Remove the hardness in the water by the secondary Na-ion exchanger at last, unboiled water is treated to soft water.

In the Na-ion exchanger, sodium ion on the resin and the calcium ions and magnesium ions in the water exchange, thereby remove the hardness in the water.Through operation after a while, resin lost efficacy, at this moment; Need the sodium-ion type resin to be regenerated,, the calcium ions and magnesium ions on the resin is changed from the new friend through the sodium ion of water middle and high concentration with the NaCl solution of saturated concentration; Make resin obtain reduction, can reuse.

The used saturated NaCl solution of regenerating must be clean, in order to avoid resin polluted and can not get good regeneration, thereby loses the value of recycling, causes waste economically.

The salt solution in the salt pump suction salt pond during regenerating softener, is used in chemical tendering water salt pond, injects the salt case through the salt liquid filter, supplies regenerating softener.More because of the Nacl clay content, for preventing contaminating impurity resin such as salt sewage sludge, need weekly once the flushing of salt liquid filter.During each the flushing, emptying salt liquid filter uses soft water flushing 10～15 minutes.Flushing is frequent, has both increased the amount of labour, has caused the waste of a large amount of strong brines and demineralized water simultaneously.Flushing salt liquid filter makes a large amount of NaCl get into the ground ditch water discharge, and chloride ion content increases, and has increased the difficulty in the sewage disposal process of downstream.

The demineralizer resin regeneration need be used clean saline solution, when containing impurity such as mud in the saline solution, thereby is prone to cause resin stain to lose efficacy.Use the salt industry filter, though can filter removal to the impurity in the saturated saline solution, because salt liquid filter itself is after using certain hour; Dirty stifled serious; Also need wash, so, just have a big chunk saline solution and flushing water to be wasted it.

Summary of the invention

Clean cost in order to reduce demineralized water, the present technique scheme provides a kind of novel demineralized water filtering ponds.

The utility model is made up of storage salt pond, filtering ponds, and a side walls in storage salt pond is connected with water inlet pipe, and storage is provided with water service pipe in the salt pond, and the partition wall that water service pipe passes between storage salt pond and the filtering ponds feeds in the filtering ponds.

Be provided with cobblestone and quartz sand in the described filtering ponds, be provided with filter below the filtering ponds, the top of filter is provided with filter, is evenly equipped with treatment hole on the filter, and filter is provided with drainpipe.

Salt is filled in the storage salt pond during operation, in the storage salt pond, constantly adds water through hose on a small quantity, and water slowly sees through salt deposit and forms saturated solution, and impurity such as mud then under the deadweight effect, are deposited to bottom, storage salt pond, have realized periodic cleaning.Clean saturated saline solution then constantly flows into filtering ponds through screen pipe.

The utility model has reduced flushing salt liquid filter operation, has saved a large amount of strong brines and demineralized water, and is easy and simple to handle, and water outlet is clean.Can also realize filtering and impurity removing to saturated saline solution simultaneously, the pollution when having avoided ion-exchanger regeneration.

Regular cleaning to precipitating sludge has been realized in the storage salt pond, has reduced the amount that NaCl gets into the ground ditch water discharge, and the water chlorion that comes of downstream sewage disposal has obtained effective reduction.

Need drain 1.5 tons of strong brines of evidence, existing salt liquid filter of the every flushing in salt pond, 680 yuan per ton.20 tons of the demineralized waters that flushing is used, need about 1525 yuan at every turn by about 5.5 yuan per ton.There are 3 soft water station institutes the chemistry operation area, and annual the need washed the salt liquid filter 156 times.

By the calculation of price of using at present, the utility model can be economized on the use of funds surplus in the of about 530,000 yuan every year.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Among the figure, 1, valve, 2, water inlet pipe, 3, the storage salt pond, 4, water service pipe, 5, partition wall, 6, filtering ponds, 7, drainpipe, 8, cobblestone, 9, quartz sand, 10, filter, 11, filter, 12, treatment hole.

The specific embodiment

Embodiment: shown in Figure 1; Present embodiment is made up of storage salt pond 3, filtering ponds 6, and a side walls in storage salt pond 3 is connected with water inlet pipe 2, and water inlet pipe 2 is provided with valve 1; Be provided with logical Brine Pipe 4 in the storage salt pond 3, the partition wall 5 that Brine Pipe 4 passes between storage salt pond 3 and the filtering ponds 6 feeds in the filtering ponds 6.

Be provided with cobblestone 8 and quartz sand 9 in the filtering ponds 6, be provided with filter 11 below the filtering ponds 6, the drainage in the filter 11 flows in the filters 11 through the treatment hole in the filter 10 12, and filter 11 is provided with drainpipe 7.

The internal diameter of described water service pipe 4 is 108mm; The internal diameter of described water inlet pipe 2 is 40mm; The diameter of described treatment hole 12 is 8mm, is evenly equipped with treatment hole 12 on the described filter 10.

Claims

1. novel demineralized water filtering ponds is characterized in that being made up of storage salt pond, filtering ponds, and a side walls in storage salt pond is connected with water inlet pipe, and storage is provided with water service pipe in the salt pond, and the partition wall that water service pipe passes between storage salt pond and the filtering ponds feeds in the filtering ponds; Be provided with cobblestone and quartz sand in the described filtering ponds, be provided with filter below the filtering ponds, the top of filter is provided with filter, is evenly equipped with treatment hole on the filter, and filter is provided with drainpipe.