CN113769445B - Intelligent common rapid filter tank system with air flushing and filtering method - Google Patents
Intelligent common rapid filter tank system with air flushing and filtering method Download PDFInfo
- Publication number
- CN113769445B CN113769445B CN202110984642.XA CN202110984642A CN113769445B CN 113769445 B CN113769445 B CN 113769445B CN 202110984642 A CN202110984642 A CN 202110984642A CN 113769445 B CN113769445 B CN 113769445B
- Authority
- CN
- China
- Prior art keywords
- water
- valve
- filter
- filter tank
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- B01D24/007—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in series connection
- B01D24/008—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in series connection arranged concentrically or coaxially
-
- 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
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/20—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being provided in an open container
- B01D24/205—Downward filtration without specifications about the filter material supporting means
-
- 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
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
-
- 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
- B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
- B01D24/4853—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration by clearness or turbidity measuring
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The application relates to an intelligent ordinary rapid filter chamber system with air flushing and a filtering method, wherein the filtering system comprises: be provided with two V type grooves on the inner wall in filtering pond, the upper end of the lateral wall in filtering pond is connected with the inlet tube, and the lower extreme in filtering pond is connected with the outlet pipe, and the tip of outlet pipe is located the below of filter material, and it has the back flush inlet tube to go out water piping connection, is provided with the back flush valve on the back flush inlet tube, and quick filtering pond system still includes: the main air distribution is arranged on the inner side wall of the filter tank, and an air distribution valve is arranged between an air distribution pipe and an air source; the bottom gas distribution pipeline is communicated with the main gas distribution pipe, is arranged in a grid shape in the filter material bearing layer, and is provided with a plurality of gas passages; and the intelligent control system is connected with the air distribution valve and the back flush water inlet valve, is used for controlling the air outlet quantity of the main air distribution pipe connected with the air distribution valve and is also used for controlling the water outlet quantity of the back flush water inlet pipe connected with the back flush water inlet valve. This application has improved the washing effect in filtering pond, has reduced the water consumption.
Description
Technical Field
The application relates to the field of water treatment, in particular to an intelligent type common rapid filter tank system with air flushing and a filtering method.
Background
The rapid filter tank is generally washed by single water of a large-resistance water distribution system of a fairy-H-shaped pipe, filter materials are graded by thin layers, and the total height of the filter tank is smaller.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the single water washing is often relatively poor in washing effect, mud balls are easily accumulated in a filter layer, normal filtering is affected, and the filtering effect of the graded filtering material is inferior to that of a homogeneous thick-layer filtering material.
Disclosure of Invention
In order to improve the washing effect of the filter tank, reduce water consumption and improve the intelligent operation level of the common rapid filter tank, the application provides an intelligent common rapid filter tank system with air washing and a filtering method.
The application provides a pair of ordinary quick filter tank system that intelligent type area gas was washed adopts following technical scheme:
the utility model provides an ordinary quick filter tank system that intelligent type area gas was washed, includes the filtering pond, is provided with the filter material in the filtering pond, is provided with two V type grooves on the inner wall in filtering pond, the upper end of the lateral wall in filtering pond is connected with first inlet tube and back flush drain pipe, the lower extreme in filtering pond is connected with outlet pipe and back flush inlet tube, and the tip of outlet pipe is located the below of filter material, and water piping connection has the back flush inlet tube, be provided with the back flush valve on the back flush inlet tube, quick filter tank system still includes:
the main air distribution is arranged on the inner side wall of the filter tank, and an air distribution valve is arranged between an air distribution pipe and an air source;
the bottom gas distribution pipeline is communicated with the main gas distribution pipe, is arranged in a grid shape in the filter material bearing layer, and is provided with a plurality of gas passages;
and the intelligent control system is connected with the gas distribution valve and the back washing water inlet valve, is used for controlling the gas outlet quantity of the main gas distribution pipe connected with the gas distribution valve and is used for controlling the water outlet quantity of the back washing water inlet pipe connected with the back washing water inlet valve.
By adopting the scheme, in the back flushing process, the air distribution valve is opened firstly, the flushing air enters the air distribution pipe and overflows from the air passage, the filter layer is continuously stirred by the air flow in the air flushing process, the filter materials collide with each other violently to move, so that a mud film adhered to the filter materials is peeled off, the contact area between the expansion of the filter layer and raw water is increased, and the filtering effect is improved; then, opening a backwashing water inlet valve, carrying out air-water mixed flushing, and controlling the opening degrees of a gas distribution valve and a water outlet valve through an intelligent control system, so that the sand leakage phenomenon of the filter material caused by overlarge air-water flushing strength can be avoided in the air-water combined process; finally, single washing is carried out. The peeled sludge is taken out of the filter tank through air-water mixed flushing and single-water back flushing, so that the filter material is flushed more cleanly and thoroughly, and the back flushing water quantity is also reduced.
Optionally, the filter material includes quartz sand layer and cobblestone layer at least, and the lower floor on quartz sand layer is laid to the cobblestone layer, bottom distribution pipeline sets up in the cobblestone layer.
Through adopting above-mentioned scheme, the distribution pipe sets up in the cobblestone layer, and the clearance between the cobblestone layer plays further dispersed effect to the flushing gas for the flushing gas can contact the quartz sand layer more extensively, has improved and has removed the miscellaneous effect.
Optionally, a sand discharge port is formed in the end portion of the bottom layer air distribution pipeline, and a sand discharge valve is arranged at the sand discharge port.
By adopting the scheme, the particle sizes of part of the quartz sand layer and the flocculating agent are smaller than the size of the air passage and penetrate through the graded cobble layer, when air washing is stopped, the air pipe generates inverted siphon action to suck the air pipe into the air pipe, the air passage is blocked, and substances entering the air distribution pipe are discharged through the sand discharge port, so that the air blasting effect is not easily influenced by blocking.
Optionally, the rapid filter tank system further comprises a turbidity analysis module for detecting turbidity on the upper surface of the filter tank water body and outputting turbidity information.
Through adopting above-mentioned scheme, detect the turbidity of water through detecting system, the staff of being convenient for observes the effect that air purge, air water ally oneself with and wash or be single washing according to turbidity information.
Optionally, a water baffle is arranged on the side of the V-shaped groove and connected with a lifting assembly, the lifting assembly drives the water baffle to lift along the vertical direction, and the length of the water baffle and the length direction of the V-shaped groove are arranged along the same direction.
Through adopting above-mentioned scheme, when the turbidity of raw water was less than the default, control the breakwater through lifting unit and rise, made the upper surface of breakwater surpass the upper surface in V type groove, played the effect of blockking to the raw water after the washing, the raw water that has reached the standard this moment need not discharge into V type inslot, through the lift of in time control breakwater for reach the raw water of standard and can not mix with the water that contains impurity.
Optionally, a second baffle is connected below the water baffle, the second baffle is arranged in the middle of the water baffle, and drainage gaps are formed between the side walls of the filter tank at two ends of the second baffle.
By adopting the scheme, when the raw water in the middle of the filter tank reaches the standard, the turbidity of the raw water at the two ends of the filter tank does not meet the use standard, the second baffle plate is controlled to ascend through the lifting assembly, at the moment, the water containing impurities at the two ends of the filter tank is discharged from the drainage gap, and the water in the middle of the filter tank is blocked by the second baffle plate, so that the raw water reaching the standard is not easy to mix with the water containing impurities.
Optionally, wisdom control system connects in turbidity detection module, wisdom control system is used for controlling the action of lifting unit according to turbidity information to adjust the lift height of breakwater, include:
if a first condition is met, generating a first instruction, wherein the first instruction is used for controlling the lifting assembly to act so that the water baffle is lifted to the upper edge of the water baffle to exceed the upper surface of the V-shaped groove by a first preset height, and the first condition is that the turbidity information indicates that no impurities exist on the surface of the water in the filter tank within a preset time period;
if a second condition is met, generating a second instruction, wherein the second instruction is used for controlling the lifting assembly to act so that the second baffle plate is lifted to a second preset height above the upper surface of the V-shaped groove, and the second condition is that the turbidity information indicates that no impurities exist in the water body at the middle position of the filter tank and impurities exist in the water body at the edge in a preset time period;
and if the first condition is not met and the second condition is not met, generating a reset instruction, wherein the reset instruction is used for controlling the lifting assembly to act so that the upper edge of the water baffle is lower than the upper surface of the V-shaped groove.
By adopting the scheme, if the turbidity information indicates that no impurities exist in the section within the preset time, the turbidity of the raw water reaches the standard value at the moment, which indicates that the sewage containing the impurities is discharged at the moment, and the water baffle is controlled to ascend through the first instruction, so that the raw water in the filter tank is not easy to enter the V-shaped groove; if the turbidity information indicates that impurities do not exist in the water body at the middle position of the filter tank within a preset time period and impurities exist in the water body at the edge, the water body at the middle of the filter tank meets the standard, the impurities in the water at the two ends of the filter tank are not completely discharged, at the moment, the second water baffle is controlled to ascend, and the impurities on the surfaces of the water bodies at the two ends of the filter tank are discharged from a drainage gap; and under other conditions, the water baffle and the second baffle fall down, so that impurities on the surface of the raw water can smoothly enter the V-shaped groove for sewage disposal.
In a second aspect, the present application provides a rapid filter tank filtering method, which adopts the following technical scheme:
a filtering method of a rapid filter tank is provided, which applies the intelligent type common rapid filter tank system with air flushing, and comprises the following steps:
the operation of the filter tank enters a back washing process:
controlling the valve to open, sending the flushing gas into the gas distribution pipe, discharging the flushing gas from the gas passage, and performing gas washing on the filter;
controlling a back washing valve to open and keeping an air distribution valve open, enabling back washing water to enter a back washing water inlet pipe, enabling washing water to enter from the back washing water inlet pipe, and performing air-water combined washing on the filter tank;
controlling the backwash valve to open and keeping the gas distribution valve closed, and washing the filter tank with water;
and if the preset timing condition is met or the first condition is met, stopping cleaning.
By adopting the scheme, the flushing gas enters the gas distribution pipe and overflows from the gas passage, the filter layer is continuously stirred by the airflow in the gas flushing process, and the filter materials are in violent collision motion with each other, so that the mud membrane adhered to the filter materials is peeled off, the contact area between the expansion of the filter layer and the raw water is increased, and the filtering effect is improved; then, opening a backwashing water inlet valve, carrying out air-water mixed flushing, controlling the opening degrees of a gas distribution valve and a water outlet valve through an intelligent control system, so that the sand leakage phenomenon caused by overlarge air-water flushing strength can be avoided in the air-water combined process, and finally carrying out single-water washing; the peeled sludge is taken out of the filter tank through air-water mixed flushing and single-water back flushing, so that the filter material is flushed more cleanly and thoroughly, and the back flushing water amount is also reduced.
Drawings
FIG. 1 is a schematic diagram of a related art;
FIG. 2 is a schematic overall structure diagram of a first embodiment of the present application;
FIG. 3 is a partial three-dimensional schematic view of the internal structure of the protruded filter;
FIG. 4 is a three-dimensional schematic view highlighting the position of the gas distribution tube;
FIG. 5 is a schematic diagram of an intelligent control system according to an embodiment of the present application;
FIG. 6 is an enlarged schematic view of detail A of FIG. 3;
description of reference numerals: 1. a filter chamber; 11. filtering the material; 111. a quartz sand layer; 112. a cobble layer; 113. filtering bricks; 12. a V-shaped groove; 13. a first bin body; 131. a first water inlet pipe; 1311. a water inlet valve; 132. backwashing the drain pipe; 1321. backwashing the drain valve; 14. a second bin body; 141. a water outlet pipe; 1411. a water outlet valve; 142. backwashing the water inlet pipe; 1421. backwashing the water inlet valve; 15. a mounting frame; 16. a slider; 2. a main gas distribution pipe; 21. a bottom gas distribution pipeline; 20. a gas distribution valve; 3. a water baffle; 31. a second baffle; 311. a drainage gap; 312. a connecting rod; 4. a lifting assembly; 41. a motor; 42. a lead screw; 5. an intelligent control system; 6. and a turbidity detection module.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
Referring to fig. 1, a related art fast filter basin system includes: a filter material 11 is arranged in the filter 1, the filter material 11 comprises a quartz sand layer 111 and a cobblestone layer 112 which are laid from top to bottom, and filter bricks 113 are laid at the bottom of the cobblestone layer 112; the inner wall of the filter tank 1 is provided with two V-shaped grooves 12, the sections of the V-shaped grooves 12 are V-shaped, the V-shaped grooves 12 are arranged along the length direction of the filter tank 1, one end of the filter tank 1 is provided with a first tank body 13, the V-shaped grooves 12 are communicated with the first tank body 13, the first tank body 13 is communicated with a first water inlet pipe 131 and a back flush drain pipe 132, the first water inlet pipe 131 is provided with a water inlet valve 1311, and the back flush drain pipe 132 is provided with a back flush drain valve 1321; a second cabin body 14 is arranged below the first cabin body 13, the second cabin body 14 is communicated with a water outlet pipe 141 and a back flush water inlet pipe 142, the water outlet pipe 141 is provided with a water outlet valve 1411, the back flush water inlet pipe 142 is provided with a back flush water inlet valve 1421, and the communicating opening of the second cabin body 14 and the filter tank 1 is horizontally opposite to the filter bricks 113.
The flow based on the operation of the common rapid filter tank system comprises the following steps: (1) a filtering process: after the water inlet valve 1311 is opened and raw water is injected to the operating liquid level, the water outlet valve 1411 is opened step by step, and the rest valves are all in a closed state. Injecting raw water into a first bin body 13 and entering a V-shaped groove 12, after the V-shaped groove 12 is filled, overflowing water in the V-shaped groove 12 into the filter tank 1 until the water level in the filter tank 1 reaches the backwashing liquid level, closing a water inlet valve 1311 and a water outlet valve 1411, ending the filtering process and starting the backwashing process;
(2) A backwashing process: opening a back-washing water inlet valve 1421 and a back-washing water outlet valve 1321, closing the other valves, injecting clean washing water from a back-washing pipe, enabling the washing water to pass through the filter brick 113 to disturb the filter material 11 from bottom to top, enabling the filter material 11 to be fully contacted with the back-washing water, enabling the water level in the filter tank 1 to rise, separating impurities on the surface and in the filter material 11 and floating on the surface of a water body, enabling the impurities to overflow into the V-shaped groove 12 along with the washing water, then enabling the impurities to enter the first tank body 13, and discharging raw water containing the impurities from the back-washing water outlet pipe 132; after the impurities are completely discharged, the backwashing water inlet valve 1421 and the backwashing water outlet valve 1321 are closed, and the backwashing process is finished. The above is one operation cycle. The inlet valve 1311 and outlet valve 1411 are opened for the next cycle of operation.
Based on this, referring to fig. 2 and fig. 3, the embodiment of the present application discloses an intelligent type general rapid filter chamber system with air flushing, which comprises the filter chamber 1, the filter material 11, the first chamber body 13, the second chamber body 14, the first water inlet pipe 131, the backwash water discharge pipe 132, the backwash water inlet pipe 142 and the water outlet pipe 141, and further comprises: the device comprises a main gas distribution pipe 2 and a bottom layer gas distribution pipeline 21, wherein the main gas distribution pipe 2 is arranged on the inner side wall of the water pool along the vertical direction, and a gas distribution valve 20 is arranged between the gas distribution pipe and a gas source; the bottom layer gas distribution pipeline 21 is communicated with the main gas distribution pipe 2 and is arranged in a grid shape in the cobblestone layer 112, and a plurality of gas passages are arranged on the bottom layer gas distribution pipeline 21.
Referring to fig. 4, compared with a single water washing process, the working process of the rapid filter tank system according to the embodiment of the present application includes: (a) a filtration process: opening a water inlet valve 1311, injecting raw water, after the running liquid level is reached, gradually opening a water outlet valve 1411, closing the rest valves, injecting the raw water into a first cabin body 13 and entering a V-shaped groove 12, filling the V-shaped groove 12, overflowing water in the V-shaped groove 12 into the filter 1 until the water level in the filter 1 reaches the back washing liquid level or the running time, closing the water inlet valve 1311 and the water outlet valve 1411, ending the filtering process, and starting the back washing process;
(b) A backwashing process: firstly, gas washing is carried out, the gas distribution valve 20 is opened, flushing gas enters the gas distribution pipe and overflows from the gas passage, the filter layer is continuously stirred by air flow in the gas flushing process, the filter materials 11 are in violent collision movement with each other, so that a mud film adhered to the filter materials 11 is peeled off, the contact area between the expansion of the filter layer and the filter materials 11 is increased, and the filtering effect is improved;
(c) Then, performing air-water combined washing, opening a back washing water inlet valve 1421, and performing air-water mixed washing;
(d) Finally, single water washing is carried out: keeping the backwashing water inlet valve 1421 and the backwashing water discharge valve 1321 in an open state, closing the gas distribution valve 20, keeping the rest valves in a closed state, taking the peeled sludge out of the filter 1 through air-water mixed flushing and single-water backwashing, injecting flushing water from a backwashing pipe, enabling the flushing water to pass through the filter brick 113 to disturb the filter material 11 from bottom to top, enabling the filter material 11 to be fully contacted with the backwashing water, enabling the water level in the filter 1 to rise, separating impurities on the surface and in the filter material 11 and floating on the surface of a water body, enabling the impurities to overflow into the V-shaped groove 12 along with the flushing water, then entering the first bin body 13, and discharging raw water containing the impurities from the backwashing water discharge pipe 132; after the impurities are completely discharged, the backwashing water inlet valve 1421 and the backwashing water outlet valve 1321 are closed, and the backwashing process is finished. The above is one operation cycle. The water inlet valve 1311 and the water outlet valve 1411 are opened, and the next operation cycle is started.
When the filter tank 1 of single washing is reformed transform, because the design size of the height of V type groove 12 and the thickness of filter material 11 all aim at single washing design, add the air purge back, the distribution pipe sets up in cobblestone layer 112 layer, and the clearance between cobblestone layer 112 plays the effect of further dispersion to the flushing gas for the flushing gas can contact 111 layers of quartz sand layer in bigger area, has improved and has removed the miscellaneous effect. In order to avoid appearing the phenomenon of running sand, refer to fig. 4, this application implementation is provided with wisdom control system 5, and mode control air feed, water supply equipment through frequency conversion control, promptly: the air distribution valve 20 and the back flush valve are both electric control valves, and the intelligent control system 5 is connected to the air distribution valve 20 and the back flush valve, and is used for controlling the air output of an air distribution pipe of the air distribution valve 20 and controlling the water output of a back flush pipe of the back flush valve. The intelligent control system 5 controls the opening of the air distribution valve 20 and the water outlet valve 1411, so that the sand leakage phenomenon caused by overlarge air-water flushing intensity can be avoided in the air-water connection process.
Because the particle size of part quartz sand layer 111, flocculating agent is less than the size of air flue and occasionally passes gradation cobble layer 112 phenomenon, when the air purge stops, produce the reverse siphon effect and inhale it in the air flue, block up the air flue, will get into the intraductal material discharge of distribution through the sand discharge mouth, so that the air purge effect is difficult for receiving the influence of jam, consequently this application embodiment still is provided with the sand discharge mouth, at the sand discharge mouth, the sand discharge mouth is connected with the sand discharge pipe, be provided with the sand discharge valve in sand discharge mouth department, the sand discharge valve is the automatically controlled valve.
In an embodiment of the application, the filtering stage comprises: the intelligent control system 5 is used for controlling the strength of gas washing, the strength of gas-water combined washing and the strength of water washing and also needs to divide the filtering time of three stages; if a manual setting mode of workers is adopted, the situation that raw water after the backwashing effect does not reach the use standard may occur due to different filter sand pollution degrees, complex operation and other factors, referring to fig. 5, the intelligent control system 5 may automatically control the operation of the filter tank 1, the air distribution system set in the embodiment of the application further includes a turbidity detection module 6, the turbidity detection module 6 may adopt an image acquisition module and a processing module connected with the image acquisition module, the image acquisition module is used for acquiring images of the water surface, the processing module is used for processing the images of the water surface to obtain turbidity information of the water surface, the turbidity detection module 6 is set in the filter tank 1 and installed on the upper surface of the water body, and is used for analyzing the turbidity of the upper surface of the water body of the filter tank 1 and outputting the turbidity information, the image acquisition module is at least three filter tanks at the height of the upper surface of the water body 1 close to the water body, the filter tank 1 is divided into three sections along the length direction of the V-shaped groove 12, the two side sections and the middle section, at least three image acquisition modules are distributed in three sections, the turbidity detection module 6 can also be used as a turbidity detection sensor in another embodiment of the application. Detect the turbidity of water through turbidity detection module 6 to the staff adjusts the working strength and the work duration distribution of air purge, air water antithetical couplet washing or single washing according to turbidity information.
Referring to fig. 4, when removing impurities, impurities on the upper surface of the water body in the filter tank 1 overflow into the V-shaped groove 12 along with water and are discharged from the backwashing water discharge pipe 132, in the process of removing impurities, the impurities may be completely removed, and the raw water reaching the standard enters the V-shaped groove 12, at this time, the amount of the raw water mixed with the impurities is increased, and the amount of the sewage needing to be subjected to secondary treatment is increased, so that the raw water reaching the standard is prevented from being mixed into the sewage tank subjected to secondary treatment; the lifting component 4 drives the water baffle 3 to lift along the vertical direction, and the length of the water baffle 3 and the length direction of the V-shaped groove 12 are arranged along the same direction. When the turbidity of the raw water is lower than the preset value, the lifting assembly 4 controls the water baffle 3 to ascend, so that the upper surface of the water baffle 3 exceeds the upper surface of the V-shaped groove 12, the raw water reaching the standard is blocked, the raw water reaching the standard does not need to be discharged into the V-shaped groove 12, and the lifting of the water baffle 3 is controlled in time.
Referring to fig. 4, in the actual filtering process, the water quality in the middle of the filter tank 1 may reach the use standard first, at this time, the water in the middle of the filter tank 1 does not need to be discharged, and the water at the two ends of the filter tank 1 needs to be continuously discharged, in order to reduce the amount of the water mixed into the sewage which reaches the standard, the embodiment of the present application is further provided with a second baffle 31, the second baffle 31 is fixedly arranged in the middle of the lower portion of the baffle 3, and a drainage gap 311 is formed between the side walls of the filter tank 1 at the two ends of the second baffle 31. When the raw water in the middle of the filter 1 reaches the standard and the turbidity of the raw water at the two ends of the filter 1 does not meet the use standard, the second baffle 31 is controlled to ascend through the lifting assembly 4, at the moment, the water containing impurities at the two ends of the filter 1 is discharged from the drainage gap 311, and the water in the middle of the filter 1 is blocked by the second baffle 31, so that the raw water reaching the standard is not easy to mix with the water containing impurities, and the cleaned raw water is prevented from being secondarily treated.
In order to realize the automatic control to 3 lifts of breakwater, the turbidity detection module 6 that this application embodiment set up is connected in wisdom control system 5, and wisdom control system 5 still is used for controlling 4 actions of lifting unit according to turbidity information to adjust the lift height of breakwater 3, specifically include:
if the first condition is met, generating a first instruction, wherein the first instruction is used for controlling the lifting assembly 4 to act so that the water baffle 3 is lifted to a first preset height, beyond the upper surface of the V-shaped groove 12, of the upper edge of the water baffle 3, and the first condition is that the turbidity information indicates that no impurities exist within a preset time period;
if a second condition is met, generating a second instruction, wherein the second instruction is used for controlling the lifting assembly 4 to act so that the second baffle 31 is lifted to a second preset height, which is higher than the upper surface of the V-shaped groove 12, of the second baffle 31, and the second condition is that the turbidity information indicates that no impurities exist in the water body at the middle position of the filter 1 and impurities exist in the water body at the edge in a preset time period;
if the first condition is not met and the second condition is not met, a reset instruction is generated, and the reset instruction is used for controlling the lifting assembly 4 to act so that the upper edge of the water baffle 3 is lower than the upper surface of the V-shaped groove 12.
If the turbidity information indicates that no impurities exist in the section within the preset time length, the turbidity of the raw water reaches a standard value at the moment, which indicates that the sewage containing the impurities is removed at the moment, and the water baffle 3 is controlled to ascend through the first instruction, so that the raw water in the filter tank 1 is not easy to enter the V-shaped groove 12; if the turbidity information indicates that no impurities exist in the water body at the middle position of the filter 1 and impurities exist in the water body at the edge in the preset time period, the water body at the middle of the filter 1 meets the standard, the impurities in the water at the two ends of the filter 1 are not completely discharged, at the moment, the second baffle 3 is controlled to ascend, and the impurities on the surfaces of the water bodies at the two ends of the filter 1 are discharged from the drainage gap 311; otherwise, the water baffle 3 and the second baffle 31 fall down, so that the impurities on the surface of the raw water can smoothly enter the V-shaped groove 12 for pollution discharge.
In addition, the second baffle 31 can also be arranged in parallel with the water baffle 3, the second baffle 31 is connected with a second lifting piece, and the second lifting piece drives the second baffle 31 to lift along the vertical direction. Through the second lift piece control second baffle 31 lift, breakwater 3 and second baffle 31 independent control are convenient for make breakwater 3 and second baffle 31 highly adapt to the difference in height between 12 upper surfaces of V type groove to filter material 11, and this application embodiment does not do the restriction to the drive assembly of second baffle 31.
The implementation principle of the first embodiment of the present application is as follows:
after the filter 1 enters a backwashing process, firstly, the air distribution valve 20 is opened, flushing air enters the air distribution pipe and overflows from the air passage, the filter layer is continuously stirred by air flow in the air flushing process, the filter materials 11 are in violent collision motion with each other, so that a mud film adhered to the filter materials 11 is peeled off, the contact area between the expansion of the filter layer and the flushing water is increased, and the filtering effect is improved; then, opening a back washing valve, carrying out air-water mixed washing, controlling the opening degrees of the air distribution valve 20 and the water outlet valve 1411 through the intelligent control system 5, so that the sand leakage phenomenon caused by overlarge air-water washing strength in the air-water combined process can be avoided, and finally carrying out single washing; after the whole filtering process is finished, the water inlet valve 1311 is closed, the blow-down valve is opened, impurities on the water surface of the filter 1 enter the V-shaped groove 12, then enter the first bin body 13, are discharged from the backwashing water discharge pipe 132, and are subjected to subsequent filtering treatment.
The second embodiment:
a filtering method of a rapid filter tank is provided, which applies the intelligent type common rapid filter tank system with air flushing, and comprises the following steps:
the filter 1 runs into a back washing process:
controlling the air distribution valve 20 to open, sending the flushing gas into the air distribution pipe, discharging the flushing gas from an air passage, and performing air washing on the filter 1;
controlling the back flush valve to open and keeping the gas distribution valve 20 open, enabling back flush water to enter the back flush water inlet pipe 142, enabling the flush water to enter the back flush water inlet pipe 142, and carrying out air-water combined washing on the filter tank 1;
controlling the backwash valve to open and keeping the air distribution valve 20 closed, and washing the filter tank 1 with water;
and if the preset timing condition is met or the first condition is met, stopping cleaning.
Flushing gas enters the gas distribution pipe and overflows from the gas passage, the filter layer is continuously stirred by the gas flow in the gas flushing process, the filter materials 11 are in violent collision motion with each other, so that a mud membrane adhered to the filter materials 11 is peeled off, the contact area between the expansion of the filter layer and raw water is increased, and the filtering effect is improved; then, opening a back washing valve, carrying out air-water mixed washing, controlling the opening degrees of the air distribution valve 20 and the water outlet valve 1411 through the intelligent control system 5, so that the sand running phenomenon caused by overlarge air-water washing strength can be avoided in the air-water combined process, and finally carrying out single washing; the peeled sludge is taken out of the filter tank 1 through air-water mixed flushing and single-water back flushing, so that the filter material 11 is flushed more cleanly and completely, and the back flushing water quantity is also reduced.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (4)
1. The utility model provides an ordinary quick filter tank system that intelligent type area gas was washed, includes filtering pond (1), is provided with filter material (11) in filtering pond (1), is provided with two V type grooves (12) on the inner wall in filtering pond (1), the upper end of the lateral wall in filtering pond (1) is connected with first inlet tube (131) and back flush drain pipe (132), the lower extreme in filtering pond (1) is connected with outlet pipe (141) and back flush inlet tube (142), and the tip of outlet pipe (141) is located the below of filter material (11), be provided with back flush water inlet valve (1421) on back flush inlet tube (142), its characterized in that, quick filter tank system still includes:
the main gas distribution pipe (2) is arranged on the inner side wall of the filter tank (1), and a gas distribution valve (20) is arranged between the main gas distribution pipe (2) and a gas source;
the bottom-layer gas distribution pipeline (21) is communicated with the main gas distribution pipe (2), the interior of the support layer of the filter material (11) is arranged in a grid shape, and a plurality of gas passages are formed in the bottom-layer gas distribution pipeline (21);
the intelligent control system (5) is connected with the gas distribution valve (20) and the back flush water inlet valve (1421), is used for controlling the gas outlet amount of the main gas distribution pipe (2) connected with the gas distribution valve (20) and is also used for controlling the water outlet amount of the back flush water inlet pipe (142) connected with the back flush water inlet valve (1421);
the rapid filter tank system also comprises a turbidity detection module (6), wherein the turbidity detection module (6) is arranged in the filter tank (1), is arranged on the upper surface of the water body, and is used for detecting the turbidity of the upper surface of the water body of the filter tank (1) and outputting turbidity information;
the water baffle (3) is arranged on the side of the V-shaped groove (12), the water baffle (3) is connected with a lifting assembly (4), the lifting assembly (4) drives the water baffle (3) to lift along the vertical direction, and the length direction of the water baffle (3) and the length direction of the V-shaped groove (12) are arranged along the same direction;
a second baffle (31) is connected below the water baffle (3), the second baffle (31) is arranged in the middle of the water baffle (3), and drainage gaps (311) are formed between the two ends of the second baffle (31) and the side wall of the filter tank (1);
wisdom control system (5) are connected in turbidity detection module (6), wisdom control system (5) are used for controlling lifting unit (4) action according to turbidity information to adjust the lift height of breakwater (3), include:
if a first condition is met, generating a first instruction, wherein the first instruction is used for controlling the lifting assembly (4) to act so that the water baffle (3) is lifted to the position where the upper edge of the water baffle (3) exceeds the upper surface of the V-shaped groove (12) by a first preset height, and the first condition is that the turbidity information shows that no impurities exist on the water body surface of the filter tank (1) in a preset time period;
if a second condition is met, generating a second instruction, wherein the second instruction is used for controlling the lifting assembly (4) to act so that the height of the second baffle (31) lifted to the second baffle (31) exceeds a second preset height of the upper surface of the V-shaped groove (12), and the second condition is that the turbidity information indicates that impurities do not exist in the water body at the middle position of the filter pool (1) in a preset time period and impurities exist in the water body at the edge;
if the first condition is not met and the second condition is not met, a reset instruction is generated, and the reset instruction is used for controlling the lifting assembly (4) to act so that the upper edge of the water baffle (3) is lower than the upper surface of the V-shaped groove (12).
2. An intelligent type general rapid filter system with air flushing according to claim 1, wherein the filter material (11) at least comprises a quartz sand layer (111) and a cobblestone layer (112), the cobblestone layer (112) is laid on the lower layer of the quartz sand layer (111), and the bottom air distribution pipeline (21) is arranged in the cobblestone layer (112).
3. An intelligent type general rapid filter tank system with air flushing according to claim 2, characterized in that the end of the bottom layer air distribution pipeline (21) is provided with a sand discharge port, and the sand discharge port is provided with a sand discharge valve.
4. A filtering method of an intelligent type general rapid filter chamber system with air flush according to any one of claims 1 to 3, comprising:
the filter tank (1) runs into a back washing process:
controlling the gas distribution valve (20) to open, sending the flushing gas into the main gas distribution pipe (2), discharging the flushing gas from the gas passage, and performing gas washing on the filter;
controlling a backwashing water inlet valve (1421) to be opened and keeping an air distribution valve (20) opened, enabling backwashing water to enter a backwashing water inlet pipe (142), enabling the flushing water to enter the backwashing water inlet pipe (142), and performing air-water combined washing on the filter tank;
controlling a backwashing water inlet valve (1421) to be opened and keeping a gas distribution valve (20) closed, and washing the filter tank;
and if the preset timing condition is met or the first condition is met, stopping cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110984642.XA CN113769445B (en) | 2021-08-25 | 2021-08-25 | Intelligent common rapid filter tank system with air flushing and filtering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110984642.XA CN113769445B (en) | 2021-08-25 | 2021-08-25 | Intelligent common rapid filter tank system with air flushing and filtering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113769445A CN113769445A (en) | 2021-12-10 |
| CN113769445B true CN113769445B (en) | 2023-01-10 |
Family
ID=78839398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110984642.XA Active CN113769445B (en) | 2021-08-25 | 2021-08-25 | Intelligent common rapid filter tank system with air flushing and filtering method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113769445B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8309761D0 (en) * | 1982-04-21 | 1983-05-18 | Permutit Boby Ltd | Filtration method |
| US5227077A (en) * | 1992-02-26 | 1993-07-13 | Baker Hughes Incorporated | Launder with baffle system for recovering filtration media in solution |
| JPH08318107A (en) * | 1995-05-23 | 1996-12-03 | Kurita Water Ind Ltd | Filter |
| CN101423284A (en) * | 2007-11-02 | 2009-05-06 | 深圳市清泉水业股份有限公司 | Backwashing method of upward flow filter and backwashing water distribution structure |
| CN202105478U (en) * | 2011-06-02 | 2012-01-11 | 山东建筑大学 | High-efficiency fibre filter |
| CN102407037A (en) * | 2011-09-21 | 2012-04-11 | 成都碧水齐力市政工程有限公司 | Air-water backwash filter and air-water backwash method |
| CN203829718U (en) * | 2014-05-21 | 2014-09-17 | 广州海滔环保科技有限公司 | High efficiency energy-saving automatic V-type filter |
| CN204017466U (en) * | 2014-09-01 | 2014-12-17 | 广东科创工程技术有限公司 | A kind of efficient water purification V-type filter tank |
| CN204170467U (en) * | 2014-09-30 | 2015-02-25 | 天津市华水自来水建设有限公司 | A kind of conventional rapid filter adopting combined water and air backwash |
| CN205391844U (en) * | 2016-03-03 | 2016-07-27 | 河南城建学院 | Intelligent anti - washing unit in flap valve filtering pond |
| CN206229010U (en) * | 2016-11-22 | 2017-06-09 | 大连恒基新润水务有限公司 | A kind of modified backwashing system |
| CN108635919A (en) * | 2018-05-24 | 2018-10-12 | 深圳市清泉水业股份有限公司 | A kind of Aerated gas-water back-impacting washing method without backwash water pump and backwash pond |
| CN109264938A (en) * | 2018-12-03 | 2019-01-25 | 苏伊士水务工程有限责任公司 | Carbon sand filter |
| CN110182963A (en) * | 2019-05-07 | 2019-08-30 | 嘉诚环保工程有限公司 | The back purge system of improved biofilter and its application in the backwash of biofilter |
| CN210855446U (en) * | 2019-08-19 | 2020-06-26 | 湖南中核环保科技有限公司 | Double-baffle device for preventing filter material from losing |
| CN211069154U (en) * | 2019-06-28 | 2020-07-24 | 深圳市深水光明水务有限公司 | Improve filtering pond back flush and run sand device |
| CN212662801U (en) * | 2020-05-22 | 2021-03-09 | 上海嘉元环境科技有限公司 | Sand leakage prevention device for V-shaped filter tank for sewage treatment |
-
2021
- 2021-08-25 CN CN202110984642.XA patent/CN113769445B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8309761D0 (en) * | 1982-04-21 | 1983-05-18 | Permutit Boby Ltd | Filtration method |
| US5227077A (en) * | 1992-02-26 | 1993-07-13 | Baker Hughes Incorporated | Launder with baffle system for recovering filtration media in solution |
| JPH08318107A (en) * | 1995-05-23 | 1996-12-03 | Kurita Water Ind Ltd | Filter |
| CN101423284A (en) * | 2007-11-02 | 2009-05-06 | 深圳市清泉水业股份有限公司 | Backwashing method of upward flow filter and backwashing water distribution structure |
| CN202105478U (en) * | 2011-06-02 | 2012-01-11 | 山东建筑大学 | High-efficiency fibre filter |
| CN102407037A (en) * | 2011-09-21 | 2012-04-11 | 成都碧水齐力市政工程有限公司 | Air-water backwash filter and air-water backwash method |
| CN203829718U (en) * | 2014-05-21 | 2014-09-17 | 广州海滔环保科技有限公司 | High efficiency energy-saving automatic V-type filter |
| CN204017466U (en) * | 2014-09-01 | 2014-12-17 | 广东科创工程技术有限公司 | A kind of efficient water purification V-type filter tank |
| CN204170467U (en) * | 2014-09-30 | 2015-02-25 | 天津市华水自来水建设有限公司 | A kind of conventional rapid filter adopting combined water and air backwash |
| CN205391844U (en) * | 2016-03-03 | 2016-07-27 | 河南城建学院 | Intelligent anti - washing unit in flap valve filtering pond |
| CN206229010U (en) * | 2016-11-22 | 2017-06-09 | 大连恒基新润水务有限公司 | A kind of modified backwashing system |
| CN108635919A (en) * | 2018-05-24 | 2018-10-12 | 深圳市清泉水业股份有限公司 | A kind of Aerated gas-water back-impacting washing method without backwash water pump and backwash pond |
| CN109264938A (en) * | 2018-12-03 | 2019-01-25 | 苏伊士水务工程有限责任公司 | Carbon sand filter |
| CN110182963A (en) * | 2019-05-07 | 2019-08-30 | 嘉诚环保工程有限公司 | The back purge system of improved biofilter and its application in the backwash of biofilter |
| CN211069154U (en) * | 2019-06-28 | 2020-07-24 | 深圳市深水光明水务有限公司 | Improve filtering pond back flush and run sand device |
| CN210855446U (en) * | 2019-08-19 | 2020-06-26 | 湖南中核环保科技有限公司 | Double-baffle device for preventing filter material from losing |
| CN212662801U (en) * | 2020-05-22 | 2021-03-09 | 上海嘉元环境科技有限公司 | Sand leakage prevention device for V-shaped filter tank for sewage treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113769445A (en) | 2021-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101495675B1 (en) | Nonpoint pollution decrease apparatus and nonpoint pollution decrease material method | |
| CN101423284B (en) | Backwashing method of upward flow filter and backwashing water distribution structure | |
| CN108379885B (en) | Sewage sedimentation tank and composite flow self-cleaning method thereof | |
| CN106554100A (en) | Oily sewage disposal equipment and its processing method | |
| CN111298488A (en) | Suspension filtration system convenient to arrange mud | |
| CN207137521U (en) | A kind of sewage disposal device of precipitation and filtering integral | |
| CN109045774A (en) | A kind of sandstone flushing waste water processing unit and method | |
| CN113769445B (en) | Intelligent common rapid filter tank system with air flushing and filtering method | |
| CN206676107U (en) | A kind of High-rate sedimentation filter | |
| JP2013144278A (en) | Moving bed type sand filtration apparatus and method of operating the same | |
| CN105854619B (en) | Pulse gas generating means | |
| CN107364903A (en) | A kind of fine fack trash-removal device and method | |
| CN201128929Y (en) | Filtering-material-costless maintenance-free recycling device for reclaimed water | |
| CN106049621B (en) | A kind of multilayer public building water saving system of toilet | |
| CN203938545U (en) | A kind of V-type filter tank | |
| JPH0365298A (en) | Batchwise activated sludge treatment apparatus | |
| CN104071926B (en) | A kind of V-type filter tank | |
| CN202237429U (en) | Filter tank | |
| CN103182207B (en) | Expandable filter tank adopting flexible soft elastic outer wall | |
| CN206173118U (en) | Oily waste water treatment equipment | |
| JP4961294B2 (en) | Liquid processing apparatus and liquid processing method | |
| JP4277589B2 (en) | Upflow filter | |
| CN109945072A (en) | A kind of removal waste fluid device and method | |
| CN219080560U (en) | Sewage lifting device for preventing blockage during backwashing | |
| US2053628A (en) | Improved filtering apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |