CN205683665U - A kind of shallow-layer filtration system at the confession backwash water source utilizing overbottom pressure - Google Patents

A kind of shallow-layer filtration system at the confession backwash water source utilizing overbottom pressure Download PDF

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Publication number
CN205683665U
CN205683665U CN201620476260.0U CN201620476260U CN205683665U CN 205683665 U CN205683665 U CN 205683665U CN 201620476260 U CN201620476260 U CN 201620476260U CN 205683665 U CN205683665 U CN 205683665U
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China
Prior art keywords
shallow
water
filter
layer
backwash
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Expired - Fee Related
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CN201620476260.0U
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Chinese (zh)
Inventor
张维嘉
张显球
林颖之
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Nanjing Normal University
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Nanjing Normal University
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Priority to CN201620476260.0U priority Critical patent/CN205683665U/en
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Abstract

The utility model discloses the shallow-layer filtration system at a kind of confession backwash water source utilizing overbottom pressure, including two and plural shallow-layer filter and recirculating cooling water system water return pipeline and water leg.Each shallow-layer filter is connected in parallel between recirculating cooling water system water return pipeline and water leg.The water inlet pipe of each shallow-layer filter is respectively provided with inlet valve, draws a road backwash waste pipe, and arrange backwash waste water discharging valve on backwash waste pipe between inlet valve and shallow-layer filter water inlet, and backwash waste pipe accesses backwash waste rhone;It is respectively provided with backwash valve on the outlet pipe of each shallow-layer filter, the collector pipe of water leg arranges the total pressure regulator valve of pipeline.Native system can utilize overbottom pressure in pipeline to be to filter the pressure needed for providing, it is not necessary to water pump pressurizes, and greatly reduces the consumption of electric energy.And water source can be provided by a filter for another during backwash, it is not necessary to and extra water consumption, economize on resources.

Description

A kind of shallow-layer filtration system at the confession backwash water source utilizing overbottom pressure
Technical field
This utility model relates to a kind of industrial circulating cooling water defecator, a kind of confession backwash utilizing overbottom pressure The shallow-layer filtration system at water source.
Background technology
Current industrial water consumption is huge, and commonly used recirculating cooling water system in the industry of these big water consumption. The impurity such as cooling tower is generally open type, the dust in air can enter in cooling water in a large number along with blower fan, makes float in water Content increases, and causes heat exchanger form dirt and increase microbial sludge, thus causes energy consumption to increase and accelerate heat transmission equipment Corrosion.Therefore the float in recirculated cooling water must filter removal.
Filtering link at present uses most traditional sand filter occupations of land huge, and installation is safeguarded very inconvenient.And tradition mistake Filter device thickness of filter bed is big, needs bigger pressure when therefore filtering.Backwash water consumption is the most more, causes the waste of energy resources.
Patent CN201520663111.0 discloses a kind of sealing water filtration purifier, is by water inlet pipe, quartz sand mistake Filter, quartz sand, outlet pipe form.Quartz filter is a diameter 1.8 meters, the cylinder of high 2.5 meters, quartz sand filtration Device is built with quartz sand;Water inlet pipe is connected with bottom quartz filter, and outlet pipe is connected with quartz filter top. This patent is for the filtration, purification of water body, and the most therefore its thickness of filter bed filters need to apply bigger pressure, consumes more electric energy.And And backwash is difficult to rinse well, needing to be additionally provided water source, water consumption is huge, wastes resource.
Patent CN201520264596.6 discloses a kind of quartz filter, including tank body and by quartz sand as Jie The filter course of matter.Order is from top to bottom followed successively by the first quartz sand filtration layer, the second quartz sand filtration layer and the 3rd quartz sand Filter course.First quartz sand filtration layer be arranged over water-distributing device, water-distributing device includes water distributor and collecting box, water distributor Being placed in the bottom of collecting box and both are connected with each other, collecting box is placed in the lower section of inlet channel, is provided with filter screen in collecting box.This is special Being used in the removing of water sample suspended material, quartz sand wears no resistance broken, therefore uses the cycle short, and operating cost is high.And Device volume is huge, and floor space is considerable, is difficult to maintaining.
Utility model content
For the shortcoming of prior art, the utility model proposes the shallow-layer mistake at a kind of confession backwash water source utilizing overbottom pressure Filter system, utilizes recirculating cooling water system draining overbottom pressure to be circulated water shallow-layer and filters, it is possible to realize the anti-of shallow-layer filter Wash.
The shallow-layer filtration system at a kind of confession backwash water source utilizing overbottom pressure of this utility model, including two and two or more Shallow-layer filter and recirculating cooling water system water return pipeline and water leg, it is characterized in that: each shallow-layer filter described is also Being associated between recirculating cooling water system water return pipeline and water leg, the water inlet pipe of shallow-layer filter is connected on recirculating cooling water system and returns On waterpipe, the outlet pipe of shallow-layer filter is connected on the collector pipe of water leg;The water inlet pipe of each shallow-layer filter is all provided with Put inlet valve, between inlet valve and shallow-layer filter water inlet, draw a road backwash waste pipe, and at backwash waste pipe On backwash waste water discharging valve is set, backwash waste pipe accesses backwash waste rhone;On the outlet pipe of each shallow-layer filter It is respectively provided with backwash valve, the collector pipe of water leg arranges the total pressure regulator valve of pipeline.
Described shallow-layer filter, from top to bottom sets the first filter material layer, the second filter material layer, the 3rd filter material layer inside it.Described First filter material layer is tiled by the garnet of particle diameter 80 mesh, and thickness is 250-400mm.Described second filter material layer is by the stone of particle diameter 60 mesh Garnet tiles, and thickness is 100-150mm.Described 3rd filter material layer is tiled by the garnet of particle diameter 40 mesh, and thickness is 100- 150mm。
Native system can utilize overbottom pressure in pipeline to be to filter the pressure needed for providing, it is not necessary to water pump pressurizes, and greatly reduces The consumption of electric energy.And water source can be provided by a filter for another during backwash, it is not necessary to and extra water consumption, economize on resources.
Accompanying drawing explanation
Fig. 1 is the shallow-layer filtration system structural representation that this utility model utilizes the confession backwash water source of overbottom pressure.
Fig. 2 is structure and the connecting line schematic diagram of single shallow-layer filter in this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is described in further detail.
As it is shown in figure 1, the present embodiment is the example containing two shallow-layer filters, but, two or more shallow-layer mistake is set The situation of filter is compared with the present embodiment, and structure is analogized, and work and backwash process are identical.
Utilizing the shallow-layer filtration system at the confession backwash water source of overbottom pressure, including two shallow-layer filters, (shallow-layer filters Device 5, No. two shallow-layer filters 6) and recirculating cooling water system water return pipeline and water leg 11.Two shallow-layer filters are connected in parallel on Between recirculating cooling water system water return pipeline and water leg 11, the water inlet pipe of shallow-layer filter is connected on recirculating cooling water system backwater On pipeline, the outlet pipe of shallow-layer filter is connected on the collector pipe 12 of water leg;The water inlet pipe of each shallow-layer filter is arranged Inlet valve (1,2), draws each road backwash waste pipe between inlet valve and shallow-layer filter water inlet, and gives up in backwash Arranging backwash waste water discharging valve (3,4) on water pipe, backwash waste pipe accesses backwash waste rhone 7;Each shallow-layer filter Outlet pipe on backwash valve (8,9) is set, the collector pipe 12 of water leg arranges the total pressure regulator valve of pipeline 10.
Each shallow-layer filter, from top to bottom sets three-layer filter layer inside it, i.e. first filter material layer the 13, second filter material layer 14, 3rd filter material layer 15.Described first filter material layer is tiled by the garnet of particle diameter 80 mesh, and thickness is between 250-400mm.Institute Stating the second filter material layer to be tiled by the garnet of particle diameter 60 mesh, thickness is between 100-150mm.Described 3rd filter material layer is by grain The garnet tiling of footpath 40 mesh, thickness is between 100-150mm.
The garnet filtrate hardness that this novel practical device uses is big, and therefore wearability is strong, can use all the life;Chemical property Stable, acid-fast alkali-proof is strong, can require to be processed into all size, suspended material in energy effectively catching water, mistake according to filtering accuracy Filter precision is high.This device delivery turbidity is better than recirculated cooling water regeneration standard.
And filter thickness of filter bed is low, filter pressure demand is little, it is possible to make full use of system overbottom pressure saves energy consumption. Fluid mechanics principle can be made full use of during backwash and increase back washing strength, improve backwash efficiency.
Each two filter parallel connection becomes a unit, can be provided water by a filter for another when backwash Source, reduces water consumption, also allows for maintenance and management.
When normally working (waste water filtering), inlet valve (1,2), backwash valve (8,9) and pipeline total pressure regulator valve 10 are equal Opening, the backwash waste water discharging valve (3,4) of each shallow-layer filter is closed.The sewer of recirculating cooling water system is by water inlet Valve (1,2) enters shallow-layer filter (5,6) and filters.After filtration, water outlet is discharged to water leg by the collector pipe 12 of water leg In 11.
After filtering certain time, filter material surface retains float, filters desirable pressure and increases, and effluent quality is deteriorated.Now Need to carry out backwash operation, to recover the clean-up performance of filtrate.Idiographic flow is as a example by No. two shallow-layer Filter Back Washings: one Number filter normally works.Being closed by inlet valve 2, backwash waste water discharging valve 4 is opened, the total pressure regulator valve of pipeline 10 turn down or Close, improve shallow-layer filter outlet pressure.Owing to shallow-layer filter interior thickness of filter bed is shallow, therefore backwash desirable pressure is not Greatly.When the discharge pressure of No. two shallow-layer filters is more than backwash resistance, a shallow-layer filter cleaning water source provided leads to Cross in backwash valve 9 enters No. two filters and carry out backwash.Sewer after backwash enters useless by backwash waste water discharging valve 4 In tank 7.When i.e. completing once to confess the backwash operation at water source after filtrate cleaning in No. two shallow-layer filters.Backwash is extensive after completing Multiple normal operating conditions.The back-washing method of a number shallow-layer filter is same, is not repeated.
This utility model system may be directly applied to the filter operation of all kinds of plant circulation cooling water system.

Claims (2)

1. utilize the shallow-layer filtration system at the confession backwash water source of overbottom pressure, including two and plural shallow-layer filter And recirculating cooling water system water return pipeline and water leg, it is characterized in that: described shallow-layer filter is connected in parallel on circulating cooling water system Between system water return pipeline and water leg, the water inlet pipe of shallow-layer filter is connected on recirculating cooling water system water return pipeline, shallow-layer mistake The outlet pipe of filter is connected on the collector pipe of water leg;The water inlet pipe of each shallow-layer filter is respectively provided with inlet valve, is entering Draw a road backwash waste pipe between penstock and shallow-layer filter water inlet, and backwash waste row is set on backwash waste pipe Penstock, backwash waste pipe accesses backwash waste rhone;Backwash valve it is respectively provided with, collection on the outlet pipe of each shallow-layer filter Pipeline total pressure regulator valve is set on the collector pipe of tank.
The shallow-layer filtration system at the confession backwash water source utilizing overbottom pressure the most according to claim 1, is characterized in that: described shallow Layer filter, from top to bottom sets the first filter material layer, the second filter material layer, the 3rd filter material layer inside it;Described first filter material layer is by grain The garnet tiling of footpath 80 mesh, thickness is 250-400mm;Described second filter material layer is tiled by the garnet of particle diameter 60 mesh, thickness For 100-150mm;Described 3rd filter material layer is tiled by the garnet of particle diameter 40 mesh, and thickness is 100-150mm.
CN201620476260.0U 2016-05-24 2016-05-24 A kind of shallow-layer filtration system at the confession backwash water source utilizing overbottom pressure Expired - Fee Related CN205683665U (en)

Priority Applications (1)

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CN201620476260.0U CN205683665U (en) 2016-05-24 2016-05-24 A kind of shallow-layer filtration system at the confession backwash water source utilizing overbottom pressure

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Application Number Priority Date Filing Date Title
CN201620476260.0U CN205683665U (en) 2016-05-24 2016-05-24 A kind of shallow-layer filtration system at the confession backwash water source utilizing overbottom pressure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110182876A (en) * 2019-05-31 2019-08-30 天津国投津能发电有限公司 A kind of novel spray system of low-temperature multi-effect seawater desalination device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110182876A (en) * 2019-05-31 2019-08-30 天津国投津能发电有限公司 A kind of novel spray system of low-temperature multi-effect seawater desalination device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161116

Termination date: 20190524

CF01 Termination of patent right due to non-payment of annual fee