CN114367134A - Method for transforming siphon filter into air-water backwashing filter - Google Patents
Method for transforming siphon filter into air-water backwashing filter Download PDFInfo
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- CN114367134A CN114367134A CN202210004713.XA CN202210004713A CN114367134A CN 114367134 A CN114367134 A CN 114367134A CN 202210004713 A CN202210004713 A CN 202210004713A CN 114367134 A CN114367134 A CN 114367134A
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- siphon
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 200
- 238000011001 backwashing Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000001131 transforming effect Effects 0.000 title claims description 11
- 238000009826 distribution Methods 0.000 claims abstract description 30
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 23
- 239000003657 drainage water Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 15
- 238000002407 reforming Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 238000011010 flushing procedure Methods 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002715 modification method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4642—Counter-current flushing, e.g. by air with valves, e.g. rotating valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/38—Feed or discharge devices
- B01D24/40—Feed or discharge devices for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/38—Feed or discharge devices
- B01D24/42—Feed or discharge devices for discharging filtrate
Abstract
The invention discloses a method for reforming a siphon filter tank into an air-water backwashing filter tank, relating to the technical field of siphon filter tank reforming; aiming at solving the problem of insufficient treatment capacity of the filter; the method specifically comprises the following steps: a water inlet/drainage system is arranged on the basis of the original filter body; sequentially arranging water distribution systems; a siphon system is arranged in a water outlet area of the original filter tank body; a V-shaped groove is arranged on the inner wall of one side of the original filter tank body; the water inlet/discharge system comprises a water inlet component for replacing an original water inlet siphon and a water discharge component for replacing an original water discharge siphon; the water inlet assembly comprises a first cast iron gate arranged in the water distribution channel, and the first cast iron gate is a water inlet valve of each filter. Compared with the prior art, the invention has the advantages that the original drainage tank is removed, the filtering area is increased, the processing capacity of the filter is further improved, the main structure of the filter is not changed, the local transformation is carried out, the civil engineering quantity is small, the manufacturing cost is low, and the economic benefit is obvious.
Description
Technical Field
The invention relates to the technical field of siphon filter tank reconstruction, in particular to a method for reconstructing a siphon filter tank into an air-water backwashing filter tank.
Background
At present, active attempts are made in partial domestic water plants around modification targets of improving the treatment capacity of a siphon filter and improving the regeneration efficiency of the filter, and two different modification methods are mainly adopted: one is to directly increase a back flushing air flushing water flushing system at the bottom of the siphon filter, and the other is to completely reform the siphon filter into an air water back flushing filter. Compared with the original siphon filter tank, the improved siphon filter tank has certain effect and also has some problems, the first improvement method does not solve the problems of low efficiency of the water inlet and outlet and drainage processes of the siphon filter tank, and the air flushing is increased, so that the bulge phenomenon is easily formed; the other method of directly modifying the air-water backwashing filter tank is that the drainage tank is added to compress the actual filtering area, so that the production capacity of the filter tank is limited, the external area of the filter tank needs to be increased when the water inlet and drainage and the pipe gallery are modified, and the method is not suitable for the semi-underground filter tank.
Therefore, a modification method capable of increasing the filtration area of the siphon filter and increasing the treatment capacity of the filter is needed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a method for reforming a siphon filter tank into an air-water backwashing filter tank.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for reforming a siphon filter tank into an air-water backwashing filter tank comprises the following steps:
s1: a water inlet/drainage system is arranged on the basis of the original filter body;
s2: sequentially arranging water distribution systems;
s3: a siphon system is arranged in a water outlet area of the original filter tank body;
s4: a V-shaped groove is arranged on the inner wall of one side of the original filter tank body;
the water inlet/discharge system comprises a water inlet component for replacing an original water inlet siphon and a water discharge component for replacing an original water discharge siphon;
the water inlet assembly comprises a first cast iron gate arranged in the water distribution channel, and the first cast iron gate is a water inlet valve of each filter; the drainage component comprises a U-shaped drainage water collecting tank arranged on the inner wall of the filter tank and a cast iron gate II, and the cast iron gate II is a drainage valve of backwashing water.
Preferably: the arrangement of the water distribution system specifically comprises the following contents:
a1: removing the filter material on the inner wall of the bottom of the original filter tank body, and adding a U-shaped air distribution water distribution pipe below the original filter material layer supported by the supporting layer;
a2: removing the original drainage water collecting tank, and reinstalling the U-shaped drainage water collecting tank;
a3: and a clear water channel is installed in the original clear water area.
Preferably: the V-shaped groove, the U-shaped drainage water collecting tank and the clear water channel are made of stainless steel.
Preferably: the U-shaped air and water distribution pipe consists of a thick pipe for water inlet and a thin pipe for air inlet.
Preferably: the thickness of the filter material layer is 1000-1500 mm; the thickness of the bearing layer is 150-300 mm; the wall thickness of the U-shaped air and water distribution pipe is 180-220 mm.
Preferably: the siphon system comprises a water level constant instrument for adjusting the water yield according to the water level and a siphon tube in a bell shape.
Preferably: the cast iron gate I and the cast iron gate II are both electric square gates.
Preferably: the original filter body further comprises a drainage tank arranged at the bottom of the original filter body, a water inlet tank arranged at the top of the original filter body and a water outlet collecting tank arranged at the middle part of the original filter body and close to the siphon pipe.
The invention has the beneficial effects that:
1. according to the invention, the U-shaped drainage water collecting tank is arranged, the cast iron gate II is opened in the back flushing process, and the flushing water is discharged from the U-shaped drainage water collecting tank through the drainage pipe.
2. The bell-jar siphon controls the linkage of water outlet and the water level of the filter tank through the water level constancy instrument, so that the water discharge amount is large when the water level of the filter tank is high, the water discharge amount is small when the water level of the filter tank is low, and the water discharge is controlled to stop when the water level is lower than the lowest water level; the water level constancy instrument is arranged to control the water discharge amount of the filter tank and ensure the filtering water level of the filter tank to be constant; the siphon system is adopted in the play water, can make full use of the space between the piping lane, reduces the valve, effectively practices thrift the space.
3. The improved technology of the invention can improve the filtered water quantity of the siphon filter tank and the quality of the outlet water, so that the improved filter tank has the characteristics of high treatment rate, good treatment effect, low operation cost, small investment, small engineering quantity and obvious effect compared with the prior filter tank.
4. The invention changes the water inlet and the water outlet by adopting the siphon, the water outlet collecting tank occupies a large space, and the water outlet siphon is removed after the improvement, so that the filtering area can be increased, and the water treatment amount is increased; the original water inlet siphon and the original water drainage siphon are removed and replaced by the electric square gate, so that the water inlet and drainage efficiency is improved; through setting up V type groove for the surface is swept and is washed transversely will wash muddy water and sweep to the water drainage tank in the surface of water, strengthens back flush effect.
5. The invention is provided; by additionally arranging the U-shaped air and water distribution pipes, the purposes of uniformly distributing air and water and fully cleaning the filter material can be achieved, bulges or local water leakage is not easy to generate, the backwashing effect is enhanced, and the operation period is increased; the U-shaped drainage water collecting tank is arranged so as to increase the filtering area and the thickness of the filtering material.
Drawings
FIG. 1 is a schematic sectional view of a siphon filter tank after the siphon filter tank is transformed into a gas-water backwashing filter tank;
FIG. 2 is a schematic sectional structure diagram of a prior art siphon filter before modification;
FIG. 3 is a schematic flow chart of a method for reforming a siphon filter tank into an air-water backwashing filter tank according to the present invention;
FIG. 4 is a schematic structural view of a U-shaped air distribution water distributor after the siphon filter is transformed into an air-water backwashing filter;
FIG. 5 is a schematic cross-sectional view of a U-shaped air distribution water distributor after the siphon filter is transformed into an air-water backwashing filter.
In the figure: 1 water inlet component, 2 water discharge component, 3 water level constant instrument, 4 water inlet tank, 5U type water discharge and collection tank, 6V type tank, 7 filter material layer, 8 bearing layer, 9U type gas distribution and water distribution pipe, 10 water discharge tank, 11 water outlet and collection tank, 12 siphon.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1:
a method for transforming a siphon filter tank into an air-water backwashing filter tank is shown in figures 1-5 and comprises the following steps:
s1: a water inlet/drainage system is arranged on the basis of the original filter body;
s2: sequentially arranging water distribution systems;
s3: a siphon system is arranged in a water outlet area of the original filter tank body;
s4: the inner wall of one side of the original filter tank body is provided with a V-shaped groove 6, so that the surface is swept and washed on the water surface, the water containing mud is swept to the drainage groove, and the backwashing effect is enhanced.
The water inlet/drainage system comprises a water inlet component 1 for replacing an original water inlet siphon pipe and a drainage component 2 for replacing an original drainage siphon pipe, so that the water inlet efficiency and the drainage efficiency are effectively improved;
furthermore, the water inlet assembly 1 comprises a first cast iron gate arranged in the water distribution channel, and the first cast iron gate is a water inlet valve of each filter; the drainage assembly 2 comprises a U-shaped drainage water collecting tank 5 arranged on the inner wall of the filter tank and a cast iron gate II, wherein the cast iron gate II is a drainage valve of backwashing water and is used for backwashing water drainage by arranging the drainage assembly 2.
The arrangement of the water distribution system specifically comprises the following contents:
a1: the filter material on the inner wall of the bottom of the original filter tank body is removed, and a U-shaped air and water distribution pipe 9 is added below the original filter material layer 7 supported by a supporting layer 8, so that the purposes of uniformly distributing air and water and fully cleaning the filter material are achieved, bulges or local water overflow is not easy to generate, the backwashing effect is enhanced, and the operation period is prolonged;
a2: the original drainage water collecting tank is dismantled, and the U-shaped drainage water collecting tank 5 is reinstalled so as to increase the filtering area and the thickness of the filtering material;
a3: installing a clear water channel in an original clear water area, and enabling clear water to flow out through a weir crest at the tail part of the clear water channel;
preferably, the V-shaped groove 6, the U-shaped drainage water collecting tank 5 and the clear water channel are all made of stainless steel. Through setting up U type drainage water catch bowl 5, open at back flush in-process cast iron gate two, the sparge water is discharged from U type drainage water catch bowl 5 via the drain pipe, compares with prior art, demolishs original water catch bowl, increases filter area, has increased filtering pond throughput, and does not change filtering pond major structure, carries out local transformation, and civil engineering volume is little, and the cost is low, and economic benefits is showing.
Preferably, the U-shaped air distribution water distributor 9 consists of a thick pipe for water inlet and a thin pipe for air inlet, so that air-water back flushing is formed.
The thickness of the filter material layer 7 is 1000-1500 mm, preferably, the thickness of the filter material layer 7 in the embodiment is 1200 mm.
The thickness of the supporting layer 8 is 150-300 mm, preferably, the thickness of the supporting layer 8 in the embodiment is 200 mm.
The wall thickness of the U-shaped air distribution and water distribution pipe 9 is 180-220 mm, preferably, the wall thickness of the U-shaped air distribution and water distribution pipe 9 in the embodiment is 200 mm.
The siphon system comprises a water level constant instrument 3 for adjusting the water yield according to the water level and a bell-type siphon 12, wherein the bell-type siphon 12 controls the water yield to be linked with the water level of the filter tank through the water level constant instrument 3, the water discharge yield is high when the water level of the filter tank is high, the water discharge yield is low when the water level of the filter tank is low, and the water discharge is stopped when the water level is lower than the lowest water level; the water level constancy instrument 3 is arranged to control the water discharge quantity of the filter tank and ensure the filtering water level of the filter tank to be constant; the siphon system is adopted in the play water, can make full use of the space between the piping lane, reduces the valve, effectively practices thrift the space.
The original filter body also comprises a drainage tank 10 arranged at the bottom of the original filter body, a water inlet tank 4 arranged at the top of the original filter body and a water outlet collecting tank 11 arranged at the middle part of the original filter body and close to a siphon 12, and sewage flows into the water inlet tank 4 through a liquid inlet and is collected so as to be filtered in the filter; the clear water is back flushed from the effluent water collecting tank 11; the waste water after washing flows into the drainage groove 10 to be collected and then is led out through the original drainage pipe.
This embodiment is when using, and through electronic square gate on-off control intake during filtration, water filters to the pool through precoat 7, and the water in pool is leading-in to the clear water canal under the siphonage of play water siphon system, and siphon 12 is through the linkage of 3 control play water of the invariable appearance of water level and filtering pond water level of the invariable appearance of water level, goes out water through the siphonage when the depth of water is greater than the 3 elevations of the invariable appearance of water level, falls to certain degree of depth when the depth of water and destroys the siphonage through the invariable appearance of water level 3. When a certain lattice filter needs backwashing, the water inlet gate of the lattice filter is closed, the filtering process is continued at the moment, when the water level drops below the water level constant instrument 3, the siphoning effect is destroyed, the siphoning pipe 12 does not play the siphoning effect, water does not flow out of the lattice filter, then the backwashing fan valve is opened, the air is firstly flushed for a period of time and then washed, then the air pipe air inlet valve is closed, the water washing valve is opened, the water washing valve begins to wash, after the water washing period, the water washing and air washing valve is simultaneously opened, after the washing is finished, the cast iron gate II on the wall of the filter is opened, and the washing water is discharged to the water drainage tank 10.
Example 2:
a method for reforming a siphon filter tank into an air-water backwashing filter tank is shown in figures 1-3, and aims to improve the water inlet and drainage efficiency; the present embodiment is modified from embodiment 1 as follows: the cast iron gate I and the cast iron gate II are both electric square gates. The original water inlet siphon and the original water drainage siphon are removed and replaced by the electric square gate, so that the water inlet and drainage efficiency is improved.
This embodiment is when using, demolishs former intake siphon, former drainage siphon, is replaced by electronic side gate, and then improves intake drainage efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A method for transforming a siphon filter tank into an air-water backwashing filter tank is characterized by comprising the following steps:
s1: a water inlet/drainage system is arranged on the basis of the original filter body;
s2: sequentially arranging water distribution systems;
s3: a siphon system is arranged in a water outlet area of the original filter tank body;
s4: a V-shaped groove (6) is arranged on the inner wall of one side of the original filter body;
the water inlet/discharge system comprises a water inlet component (1) for replacing an original water inlet siphon pipe and a water discharge component (2) for replacing an original water discharge siphon pipe;
the water inlet assembly (1) comprises a first cast iron gate arranged in the water distribution channel, and the first cast iron gate is a water inlet valve of each filter; the drainage assembly (2) comprises a U-shaped drainage water collecting tank (5) arranged on the inner wall of the filter tank and a cast iron gate II, and the cast iron gate II is a drainage valve of backwashing water.
2. The method for transforming a siphon filter tank into an air-water backwashing filter tank according to claim 1, wherein the arrangement of the water distribution system specifically comprises the following steps:
a1: removing the filter material on the inner wall of the bottom of the original filter tank body, and adding a U-shaped air distribution water distribution pipe (9) below the original filter material layer (7) supported by a supporting layer (8);
a2: the original drainage water collecting tank is dismantled, and the U-shaped drainage water collecting tank (5) is reinstalled;
a3: and a clear water channel is installed in the original clear water area.
3. The method for transforming a siphon filter tank into an air-water backwashing filter tank according to claim 2, wherein the V-shaped groove (6), the U-shaped drainage water collecting tank (5) and the clear water channel are made of stainless steel.
4. A method for transforming a siphon filter into a gas-water backwashing filter according to claim 3, wherein the U-shaped gas distribution water pipe (9) consists of a thick pipe for water inlet and a thin pipe for air inlet.
5. The method for transforming a siphon filter tank into an air-water backwashing filter tank according to claim 4, wherein the thickness of the filter material layer (7) is 1000-1500 mm; the thickness of the bearing layer (8) is 150-300 mm; the wall thickness of the U-shaped air and water distribution pipe (9) is 180-220 mm.
6. A method for transforming a siphon filter into an air-water backwash filter according to claim 1, wherein the siphon system comprises a water level constancy instrument (3) for adjusting the water output according to the water level and a siphon tube (12) in the shape of a bell jar.
7. The method for transforming a siphon filter tank into an air-water backwashing filter tank according to claim 1, wherein the first cast iron gate and the second cast iron gate are both electric square gates.
8. A method for transforming a siphon filter into an air-water backwashing filter according to claim 6, wherein the original filter body further comprises a drainage tank (10) arranged at the bottom thereof, a water inlet tank (4) arranged at the top thereof and a water outlet collecting tank (11) arranged at the middle thereof near a siphon (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210004713.XA CN114367134A (en) | 2022-01-04 | 2022-01-04 | Method for transforming siphon filter into air-water backwashing filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210004713.XA CN114367134A (en) | 2022-01-04 | 2022-01-04 | Method for transforming siphon filter into air-water backwashing filter |
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| CN114367134A true CN114367134A (en) | 2022-04-19 |
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| CN202210004713.XA Pending CN114367134A (en) | 2022-01-04 | 2022-01-04 | Method for transforming siphon filter into air-water backwashing filter |
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Cited By (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115518426A (en) * | 2022-10-17 | 2022-12-27 | 浙江中昌水处理科技有限公司 | V-shaped filter tank transformation process and denitrification deep bed filter tank thereof |
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Application publication date: 20220419 |