CN207605417U - A kind of sand filter and its water distributing trough - Google Patents

A kind of sand filter and its water distributing trough Download PDF

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Publication number
CN207605417U
CN207605417U CN201721389210.XU CN201721389210U CN207605417U CN 207605417 U CN207605417 U CN 207605417U CN 201721389210 U CN201721389210 U CN 201721389210U CN 207605417 U CN207605417 U CN 207605417U
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CN
China
Prior art keywords
water
sand filter
water distribution
communicating pipe
cofferdam
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Expired - Fee Related
Application number
CN201721389210.XU
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Chinese (zh)
Inventor
王东雷
许家明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tongshan Huarun Electric Power Co Ltd
Xuzhou China Resources Power Co Ltd
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Tongshan Huarun Electric Power Co Ltd
Xuzhou China Resources Power Co Ltd
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Priority to CN201721389210.XU priority Critical patent/CN207605417U/en
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Publication of CN207605417U publication Critical patent/CN207605417U/en
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Abstract

The utility model discloses a kind of sand filter water distributing troughs, including water distribution groove body, the water distribution cofferdam of the water distribution groove body is equipped with can be by the liquid siphon in sand filter to the inverted u-shaped communicating pipe of the water distributing trough body interior, the inlet and outlet of the U-shaped communicating pipe are located at the outside and inside of the water distribution groove body, and the water inlet is less than the top surface preset height in the water distribution cofferdam.Sand filter water distributing trough provided by the utility model, by the way that the U-shaped communicating pipe is arranged, it can be when carrying out compressed air scouring filtrate, the expansion height of compressed air is consistently lower than the apical side height in water distribution cofferdam, the race sand of sand filter will not be caused, while avoiding the abrasion of recycle-water pipeline, the pipe fitting pump housing.The invention also discloses a kind of sand filters including above-mentioned water distributing trough.

Description

A kind of sand filter and its water distributing trough
Technical field
The utility model is related to sand filter apparatus fields, more particularly to a kind of sand filter water distributing trough.In addition, this practicality is new Type further relates to a kind of sand filter including above-mentioned water distributing trough.
Background technology
As common water processing establishment, becomes hole gravity type sand filter and used extensively, mainly in water treatment of power plant field For filtering out the suspended matter in water body, water turbidity is reduced.
As shown in Figure 1, existing water distributing trough is mounted in sand filter, and the position of water distributing trough is fixed, due to itself Design feature, with the extension of sand filter run time, suspended matter in water can constantly by media filtration, in the inside of filtrate and Surface is accumulated, and due to the continuous reduction in media filtration channel, filter capacity is also constantly reducing.When therefore often running one section Between, the trapped substance of filter material surface and internal attachment must be removed through row backwash, restore the filter capacity of sand filter by sand filter, Wherein, sand filter backwash step is followed successively by water backwash, compressed air scouring and water backwash.
Existing sand filter, before sand filter carries out compressed air scouring, the cofferdam of water level and water distributing trough in sand filter Top flushes, and when carrying out compressed air scouring, for compressed air during being floated by sand filter bottom, volume is swollen rapidly It is swollen, and a large amount of filtrates of carrying are held out into the water surface, the cofferdam of water distributing trough is crossed, into reuse pool, sand filter is caused to run sand, filter The filtering accuracy of material reduces, and sand filter effluent quality is deteriorated.
Also, during filtrate enters reuse pool, inlet pipeline, the valve of reuse pool can be caused seriously to grind Damage accumulates the filtrate in reuse pool when being delivered to mechanical accelerating purifying pool by reuse water pump, can be to reuse water lines, pipe fitting And water pump causes to be seriously worn, when the backwash water in reuse pool is transported to mechanical accelerating purifying pool, these filtrates can be Mechanical accelerating purifying pool and the accumulation of follow-up water treatment system, will have a direct impact on the stable operation of water treatment system when serious.
In addition, the sand filter of the compressed air gas distribution unevenness caused by equipment deficiency after design or operation, runs sand feelings Condition is even more serious, and the defect of gas distribution unevenness is difficult processing.
Therefore, how to reduce and run sand phenomenon in sand filter, reduce the abrasion to recycle-water pipeline and the pipe fitting pump housing, be ability The current technical issues that need to address of field technique personnel.
Utility model content
The purpose of this utility model is to provide a kind of sand filter water distributing trough, the sand filter water distributing trough by install communicating pipe, It can effectively avoid running sand phenomenon, reduce the abrasion to recycle-water pipeline and the pipe fitting pump housing.The another object of the utility model It is to provide a kind of sand filter including above-mentioned water distributing trough.
To achieve the above object, the utility model provides the following technical solutions:
A kind of sand filter water distributing trough, including water distribution groove body, the water distribution cofferdam of the water distribution groove body is equipped with can be by sand Liquid siphon in filter tank the water inlet of the U-shaped communicating pipe and goes out to the inverted u-shaped communicating pipe of the water distributing trough body interior The mouth of a river is located at the outside and inside of the water distribution groove body, and the water inlet is pre- less than the top surface in the water distribution cofferdam If height.
Preferably, the height of the water inlet of the U-shaped communicating pipe is higher than the height of the water outlet of the U-shaped communicating pipe, and And the water distribution cofferdam of the water inlet of the U-shaped communicating pipe towards the water distribution groove body is obliquely installed.
Preferably, the water inlet of the U-shaped communicating pipe extends perpendicularly to the water distribution cofferdam of the water distribution groove body and prolongs Stretch direction.
Preferably, the water inlet extending direction of the U-shaped communicating pipe dips down towards the side close to the water distribution cofferdam Tiltedly setting.
Preferably, it is equipped with U-shaped communicating pipe on the water distribution cofferdam of water distribution groove body both sides, also, is located at institute The height for stating the U-shaped communicating pipe being arranged on the water distribution cofferdam of water distribution groove body both sides is identical.
Preferably, the water inlet of the U-shaped communicating pipe and the distance from top in the water distribution cofferdam are 40-60cm.
Preferably, the U-shaped communicating pipe is mounted on the top in the water distribution cofferdam, also, the water distribution cofferdam is equipped with The through-hole being fixedly connected after being penetrated for the U-shaped communicating pipe.
The utility model also provides a kind of sand filter, including the water distributing trough described in above-mentioned any one.
The water distribution of sand filter water distributing trough provided by the utility model, including water distribution groove body, the water distribution groove body is enclosed Weir is equipped with can be by the liquid siphon in sand filter to the inverted u-shaped communicating pipe of the water distributing trough body interior, the U-shaped connection The inlet and outlet of pipe are located at the outside and inside of the water distribution groove body, and the water inlet is matched less than described The top surface preset height in water cofferdam.The sand filter water distributing trough, by the way that U-shaped communicating pipe is arranged, can after a water backwash, Liquid in the sand filter is sucked using siphon principle in the water distribution groove body and is flowed away so that is located at the water distributing trough master The liquid level of external side is concordant with the height of the water inlet, that is, is located at the liquid level on the outside of the water distribution groove body and is less than the water distribution The top surface preset height in cofferdam, liquid level difference caused by which should at least meet during compressed air is cleaned, Make the water distributing trough, when carrying out compressed air scouring filtrate, the expansion height of compressed air is consistently lower than the top in water distribution cofferdam Face height, will not cause the race sand of sand filter, while avoid the abrasion of recycle-water pipeline, the pipe fitting pump housing.
Sand filter provided by the utility model is equipped with above-mentioned water distributing trough, since the water distributing trough is imitated with above-mentioned technology Fruit, therefore, the sand filter equipped with the water distributing trough should also be as having corresponding technique effect.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of sand filter water distributing trough in the prior art;
Fig. 2 is a kind of structural schematic diagram of specific implementation mode of sand filter provided by the utility model;
Fig. 3 is a kind of structural schematic diagram of specific implementation mode of sand filter water distributing trough shown in Fig. 2;
Fig. 4 is structural schematic diagram of the sand filter provided by the utility model in a water backwash;
Fig. 5 is structural schematic diagram of the sand filter provided by the utility model after a water backwash;
Fig. 6 is structural schematic diagram of the sand filter provided by the utility model when compressed air is cleaned;
Fig. 7 is structural schematic diagram of the sand filter provided by the utility model in secondary water backwash;
Wherein:1- water distributions groove body, 2-U type communicating pipes, 3- sand filters, 4- filter material layers, 5- bed courses, 6- compressed air air inlets Pipe, 7- backwashes water inlet pipe, 8- processing water outlet pipe, 9- air distribution heads, 10- water caps.
Specific implementation mode
The core of the utility model is to provide a kind of sand filter water distributing trough, the sand filter water distributing trough by install communicating pipe, It can effectively avoid running sand phenomenon, reduce the abrasion to recycle-water pipeline and the pipe fitting pump housing.Another core of the utility model It is to provide a kind of sand filter including above-mentioned water distributing trough.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
It is that a kind of structure of specific implementation mode of sand filter provided by the utility model is shown to please refer to Fig.2 to Fig. 7, Fig. 2 It is intended to;Fig. 3 is a kind of structural schematic diagram of specific implementation mode of sand filter water distributing trough shown in Fig. 2;Fig. 4 is the utility model institute Structural schematic diagram of the sand filter of offer in a water backwash;Fig. 5 is sand filter provided by the utility model in a water Structural schematic diagram after backwash;Fig. 6 is structural schematic diagram of the sand filter provided by the utility model when compressed air is cleaned; Fig. 7 is structural schematic diagram of the sand filter provided by the utility model in secondary water backwash;Wherein, the arrow in Fig. 4 and Fig. 7 For backwash water flow direction.
In this embodiment, 3 water distributing trough of sand filter includes water distribution groove body 1 and U-shaped communicating pipe 2.
Wherein, it is arranged U-shaped communicating pipe 2 on the water distribution cofferdam of water distribution groove body 1, also, U-shaped communicating pipe 2 is inverted, water distribution Groove body 1 it is opening up, when the liquid height in sand filter 3 higher than water distribution groove body 1 water distribution cofferdam height when, sand filtration Liquid in pond 3 can flow to the inside of water distribution groove body 1, and flow out sand filter 3 along the extending direction of water distribution groove body 1.
Specifically, U-shaped communicating pipe 2 can be by inside the liquid siphon in sand filter 3 to water distribution groove body 1, also, U-shaped company The inlet and outlet of siphunculus 2 are located at the outside and inside of water distribution groove body 1.
Meanwhile the water inlet of the U-shaped communicating pipe 2 of the water distributing trough should also be less than the top surface preset height in water distribution cofferdam, i.e., Liquid height in sand filter 3 is not above the apical side height in water distribution cofferdam.
More specifically, in the backwash step in sand filter 3, first have to carry out a water backwash, backwash water by backwash into Water pipe 7 flows into sand filter 3, and the liquid level in sand filter 3 gradually rises, when the liquid level in sand filter 3 is higher than water distribution When the apical side height in cofferdam, the liquid in sand filter 3, which flows into water distributing trough main body 1, to flow away, after the completion of a water backwash step, sand Liquid height in filter tank 3 drop to it is concordant with the apical side height in water distribution cofferdam, then under the action of U-shaped communicating pipe 2, sand filtration Liquid height in pond 3 will continue to drop to it is identical as the water inlet open height of U-shaped communicating pipe 2, as shown in Figure 4 and Figure 5.
Further, after the completion of water backwash work, compressed air is passed through by sand filter 3 by compressed air inlet pipe 6 Interior, compressed air inlet pipe 6 is equipped with air distribution head 9 and water cap 10, and bed course 5 is located at the bottommost of sand filter 3, and top is equipped with filtrate Layer 4, under the action of compressed air, the bubble in rising constantly holds up filtrate, and filter material layer 4 is caused to expand, in sand filter 3 Water level continued jitters, however, after the completion of due to a water backwash step, the liquid height in sand filter 3 will continue to drop to Identical as the water inlet open height of U-shaped communicating pipe 2, therefore, the water surface of continued jitters is not above water distribution cofferdam, and filtrate will not enter In water distribution groove body 1, as shown in Figure 6.
Further, after the completion of compressed air cleans work, and then secondary water backwash step, secondary backwash water again by Backwash water inlet pipe 7 flows into sand filter 3, and the liquid level in sand filter 3 gradually rises, when the liquid level in sand filter 3 is high When the apical side height in water distribution cofferdam, the liquid in sand filter 3, which flows into water distributing trough main body 1, to flow away, and one time water backwash step is complete Cheng Hou, the liquid height in sand filter 3 drop to it is concordant with the apical side height in water distribution cofferdam, then in the effect of U-shaped communicating pipe 2 Under, the liquid height in sand filter 3 will continue to drop to identical as the water inlet open height of U-shaped communicating pipe 2.
3 water distributing trough of sand filter can be after a water backwash, by the liquid in sand filter 3 by the way that U-shaped communicating pipe 2 is arranged Body is sucked in water distribution groove body 1 using siphon principle and is flowed away so that is located at the height of the liquid level and water inlet in 1 outside of water distribution groove body Degree is concordant, that is, the liquid level for being located at 1 outside of water distributing trough main body is less than the top surface preset height in water distribution cofferdam, which should be extremely Liquid level difference caused by meeting less during compressed air is cleaned so that the water distributing trough cleans filtrate carrying out compressed air When, the expansion height of compressed air is consistently lower than the apical side height in water distribution cofferdam, will not cause the race sand of sand filter 3, keep away simultaneously The abrasion of recycle-water pipeline, the pipe fitting pump housing is exempted from.
On the basis of the respective embodiments described above, the height of the water inlet of U-shaped communicating pipe 2 is higher than the water outlet of U-shaped communicating pipe 2 The height of mouth, the difference in height to form outside in U-shaped communicating pipe 2 can produce so that U-shaped communicating pipe 2 is in use Raw siphonage, also, the water distribution cofferdam of the water inlet of U-shaped communicating pipe 2 towards water distribution groove body 1 is obliquely installed.
In above-mentioned setting, when sand filter 3 is just started to work, raw water to be filtered enters sand filter 3 through the overflow of water distribution cofferdam Filtering area when, raw water to be filtered can first pass through the discharge of U-shaped communicating pipe 2 before overflow, and hit to water distribution cofferdam side wall, dispersion At weep, impact of the mass-flow to 3 bottom filtrate of sand filter is reduced, ensures the smooth of filter material surface.
Specifically, the water inlet of U-shaped communicating pipe 2 extends perpendicularly to the water distribution cofferdam extending direction of water distribution groove body 1, That is the water inlet of U-shaped communicating pipe 2 can be horizontally disposed, certainly, in practical applications, the water inlet of U-shaped communicating pipe 2 Horizontal segment can slope slightly downward to setting, i.e. the water inlet extending direction of U-shaped communicating pipe 2 is towards the side close to water distribution cofferdam Setting is tilted down, impact of the mass-flow to 3 bottom filtrate of sand filter can be reduced, ensures that the smooth angle of filter material surface is set It sets.
On the basis of the respective embodiments described above, height phase is arranged on the water distribution cofferdam of 1 both sides of water distribution groove body Same U-shaped communicating pipe 2, i.e. liquid in sand filter 3 can be matched by being flow to simultaneously in the U-shaped communicating pipe 2 of 1 both sides of water distribution groove body Inside sink main body 1, it is possible to reduce the siphon drainage time.
On the basis of the respective embodiments described above, the water inlet of U-shaped communicating pipe 2 is 40- with the distance from top in water distribution cofferdam 60cm, i.e., after a water backwash, the liquid height in sand filter 3 is less than the top 40-60cm in water distribution cofferdam, the height Difference can offset compressed air and clean caused expansion height when filtrate, i.e., when carrying out air bump rinse operation filtrate, in sand filter 3 Liquid level is consistently lower than the overhead height in water distribution cofferdam, and then filtrate is effectively prevent to flow into inside water distribution groove body 1, together When, it avoids running sand phenomenon, reduces waste.
On the basis of the respective embodiments described above, it is mounted on the top in water distribution cofferdam, also, water distribution cofferdam U-shaped communicating pipe 2 It is equipped with the through-hole being fixedly connected after being penetrated for U-shaped communicating pipe 2, it, can will specifically, U-shaped communicating pipe 2 can be stainless steel tube U-shaped communicating pipe 2 is weldingly fixed on water distribution cofferdam, and certainly, U-shaped communicating pipe 2 can also use the hard with certain degree of hardness to mould Expects pipe.
Other than 3 water distributing trough of above-mentioned sand filter, the utility model additionally provides a kind of sand filtration including above-mentioned water distributing trough Pond 3, the position being connected to backwash water inlet pipe 7 on the sand filter 3 are additionally provided with processing water outlet pipe 8, other each sections of sand filter 3 Refer to the prior art for structure, and repeats no more herein.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Sand filter water distributing trough provided by the utility model is described in detail above.It is used herein specifically a Example is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to understand this reality With novel method and its core concept.It should be pointed out that for those skilled in the art, not departing from this Under the premise of utility model principle, several improvements and modifications can be made to this utility model, these improvement and modification are also fallen Enter in the protection domain of the utility model claims.

Claims (8)

1. a kind of sand filter water distributing trough, which is characterized in that including water distribution groove body (1), the water distribution of the water distribution groove body (1) is enclosed Weir is equipped with can be by the liquid siphon in sand filter (3) to the water distribution groove body (1) internal inverted u-shaped communicating pipe (2), institute The inlet and outlet for stating U-shaped communicating pipe (2) are located at the outside and inside of the water distribution groove body (1), and described Water inlet is less than the top surface preset height in the water distribution cofferdam.
2. sand filter water distributing trough according to claim 1, which is characterized in that the height of the water inlet of the U-shaped communicating pipe (2) Degree is higher than the height of the water outlet of the U-shaped communicating pipe (2), also, the water inlet of the U-shaped communicating pipe (2) is matched described in The water distribution cofferdam of sink main body (1) is obliquely installed.
3. sand filter water distributing trough according to claim 2, which is characterized in that the water inlet of the U-shaped communicating pipe (2) extends Water distribution cofferdam extending direction of the direction perpendicular to the water distribution groove body (1).
4. sand filter water distributing trough according to claim 2, which is characterized in that the water inlet of the U-shaped communicating pipe (2) extends Direction is sloped downwardly setting towards close to the one of the water distribution cofferdam.
5. sand filter water distributing trough according to claim 1, which is characterized in that be located at water distribution groove body (1) both sides U-shaped communicating pipe (2) is equipped on water distribution cofferdam, also, be arranged on the water distribution cofferdam of water distribution groove body (1) both sides The height of U-shaped communicating pipe (2) is identical.
6. the sand filter water distributing trough according to claim 1 to 5 any one, which is characterized in that the U-shaped communicating pipe (2) The distance from top in water inlet and the water distribution cofferdam be 40-60cm.
7. sand filter water distributing trough according to claim 6, which is characterized in that the U-shaped communicating pipe (2) is mounted on described match The top in water cofferdam, also, the water distribution cofferdam is equipped with the through-hole being fixedly connected after penetrating for the U-shaped communicating pipe (2).
8. a kind of sand filter (3), including water distributing trough, which is characterized in that the water distributing trough is claim 1 to 7 any one institute The sand filter water distributing trough stated.
CN201721389210.XU 2017-10-25 2017-10-25 A kind of sand filter and its water distributing trough Expired - Fee Related CN207605417U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721389210.XU CN207605417U (en) 2017-10-25 2017-10-25 A kind of sand filter and its water distributing trough

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721389210.XU CN207605417U (en) 2017-10-25 2017-10-25 A kind of sand filter and its water distributing trough

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114470892A (en) * 2022-01-12 2022-05-13 武汉理工大学 Hydraulic spiral-flow type backwashing filter device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114470892A (en) * 2022-01-12 2022-05-13 武汉理工大学 Hydraulic spiral-flow type backwashing filter device and method

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

Granted publication date: 20180713

Termination date: 20191025

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