CN214611735U

CN214611735U - Upward flow active carbon filter

Info

Publication number: CN214611735U
Application number: CN202022474093.5U
Authority: CN
Inventors: 邬亦俊; 周婷如; 杨友强; 吕淼; 马永恒; 芮旻
Original assignee: Shanghai Water Industry Design Engineering Co ltd; Shanghai Municipal Engineering Design Insitute Group Co Ltd
Current assignee: Shanghai Water Industry Design Engineering Co ltd; Shanghai Municipal Engineering Design Insitute Group Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-11-05
Anticipated expiration: 2030-10-30

Abstract

The utility model provides an upward flow active carbon filter, including a plurality of single check filtering pond, the single check filtering pond includes single check central canal and both sides strain the check, single check central canal is double-deck canal, the bottom is established the distribution canal of joining in marriage water, the upper strata is established production water drainage canal, both sides are strained check upper portion and are established water catch bowl and production water drainage canal intercommunication, the main canal of intaking is established to the one end of single check central canal, the main canal of intaking is intake the weir through the single check and is connected with the distribution canal of intaking in this single check filtering pond, the distribution canal of intaking is connected to the distribution canal of central canal bottom through the branch pipe that intakes, distribution canal lateral wall establishes the water distribution hole and the gas distribution hole with both sides strain check intercommunication, the other end of single check central canal is established the production water distribution canal that corresponds with this single check filtering pond, central canal upper strata production water drainage canal passes through intercommunicating pore and production water distribution canal intercommunication, the production water distribution canal is connected with the main canal through single check production weir. The utility model discloses optimize the product weir and the drainage mode in active carbon filtering pond, reduced head loss, increased filtering pond overall arrangement flexibility.

Description

Upward flow active carbon filter

Technical Field

The utility model relates to a water treatment technical field is an upward flow active carbon filter suitable for municipal water supply, drainage advanced treatment and special water treatment.

Background

In the field of water treatment, the ozone biological activated carbon process has a good removal effect on organic matters and ammonia nitrogen, so that an activated carbon filter is widely used for advanced treatment. Compared with the currently common downstream activated carbon filter, the upstream activated carbon filter has the advantages of high expansion rate of filter materials, good organic matter removal effect, low service efficiency, low head loss and the like. An upward flow activated carbon filter (patent number 201310410158) of the utility model of the general institute of government engineering and research (group) limited in Shanghai city provides a tank type for the upward flow activated carbon filter. However, the pool type water generating weir is narrow, the loss of a water distribution head is large, and the practical application is greatly limited particularly in large-scale water plant application. In addition, the pool type uses a filter head filter sheet form so that the treated water may be more easily accumulated in the lower space.

SUMMERY OF THE UTILITY MODEL

The utility model provides an upward flow active carbon filter can improve head loss to solve the problem of proposing among the above-mentioned background art.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an upward flow active carbon filter, including a plurality of single check filtering pond, the single check filtering pond includes single check central canal and both sides filter check, single check central canal is double-deck canal, the bottom is established the distribution canal of joining in marriage, the upper strata is established production water and is arranged the canal, both sides are strained check upper portion and are established the catch basin and are arranged the canal intercommunication with the production water, the main canal of intaking is established to the one end of single check central canal, the main canal of intaking is connected with the branch canal of intaking of this single check filtering pond through single check intake weir, the branch canal of intaking is connected to the distribution canal of water distribution of central canal bottom of central canal through the branch pipe of intaking, distribution canal lateral wall of distribution canal is established and is strained the water distribution hole and the gas distribution hole that the check communicates with both sides, the other end of single check central canal is established the production water branch canal that corresponds with this single check filtering pond, central canal upper strata production water and arrange the canal and pass through intercommunicating pore and production water distribution canal intercommunication, the production water distribution canal is connected with the main canal through single check production water distribution canal.

Furthermore, the width of the single-cell water production weir is the same as that of the single-cell filter, and the weir crest of the single-cell water production weir is lower than the water level of the water collection tank and higher than the highest water level of the water production main channel.

Furthermore, a water and gas distribution system, a supporting layer and an active carbon filter layer are arranged in the filter grids at the two sides from bottom to top.

Furthermore, the bottom of the upper layer water producing and draining channel is filled with water and slopes to the draining side, the lower part of the upper layer water producing and draining channel of the central channel is provided with a draining valve which is connected with a draining main channel, and the draining main channel is arranged below the water inlet main channel or the water producing main channel.

Furthermore, two ends of the water and gas distribution channel at the bottom layer of the central channel extend out of the filter tank, two sides of the water and gas distribution channel are respectively connected with a water inlet branch pipe and a backflushing gas pipe, and the channel top at one end of the backflushing gas pipe is higher than the water and gas distribution channel top in the filter tank.

Furthermore, the water inlet branch pipe is provided with a water inlet valve.

Further, the water collecting tank adopts a stainless steel square tank.

Preferably, the activated carbon layer is graded to form fully fluidized particles in the upward flow rate range, and the expansion rate of the activated carbon layer is ensured not to lose carbon particles.

The water entering the filter tank enters the water and gas distribution channel at the bottom of the central channel through the single-lattice water inlet weir and the water inlet branch pipe, and enters the water from the bottom of the filter tank in the lateral direction. Filtered water enters the upper water producing and draining channel of the central channel through the upper water collecting groove, flows to the single-grid water producing sub-channel and enters the water producing main channel from the single-grid water producing weir. The flushing wastewater is discharged to the upper layer water production and drainage channel of the central channel under the control of a drainage valve. The utility model adopts the forms of the water production sub-channel, the water production weir and the water production main channel on the water production, the single-lattice water production weir is arranged in the water production main channel, the width of the single-lattice water production weir is the same as that of the filter tank, and the head loss is improved; the channel top at one side of the recoil air pipe is higher than the water and gas distribution channel top, so that the height difference is formed, and the gas collection and the gas exhaust are convenient.

The utility model has the advantages of it is following: 1, forming a central channel arrangement form, further overcoming the limitation of the length and the width of a single-lattice filter, and being beneficial to realizing flexible combination with sand filters such as a V-shaped filter, a flap filter and the like; 2. the water generating weir and the drainage mode of the upward flow activated carbon filter are optimized, the layout is optimized, the head loss is reduced, and the land, the construction cost and the operation management cost are saved; 3. the water and gas distribution mode of the filter is optimized, and sedimentation is avoided.

Drawings

Fig. 1 is a plan view of the single-lattice filter of the utility model.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

Detailed Description

The embodiment is an upward flow active carbon filter, including a plurality of single-lattice filter, the single-lattice filter includes single-lattice central canal and both sides filter lattice. The water inlet main channel 1 and the water production main channel 14 formed by the multi-grid filter are respectively arranged at two ends of the filter. The central canal is a double-layer canal, the bottom layer is provided with a water distribution canal 6, and the upper layer is provided with a water production and drainage canal 10. The upper parts of the filter lattices on the two sides are provided with water collecting troughs 11 communicated with a produced water drainage channel 10, one end of a single lattice central channel is provided with a water inlet main channel 1, the water inlet main channel 1 is connected with a water inlet sub channel 3 of the single lattice filter pool through a single lattice water inlet weir 2, the water inlet sub channel 3 is connected to a water distribution and gas distribution channel 6 at the bottom layer of the central channel through a water inlet branch pipe 4, the side wall of the water distribution and gas distribution channel 6 is provided with a water distribution hole and a gas distribution hole communicated with the filter lattices on the two sides, a drainage main channel 18 is arranged below the water inlet main channel 1, the lower part of the water production and drainage channel at the upper layer of the central channel is provided with a drainage valve 17 connected with the drainage main channel 18, the discharge of produced water and the flushing wastewater can be controlled by opening and closing the drainage valve 17, and the slope drainage channel 10 is provided with a drainage end. The other end of the single-lattice central canal is provided with a water production sub-canal 12 corresponding to the single-lattice filter, an upper water production and drainage canal 10 of the central canal is communicated with the water production sub-canal 12 through a communication hole, and the water production sub-canal is connected with a water production main canal 14 through a single-lattice water production weir 13.

When the filtering process is running, the water inlet valve 5 is opened, and the water outlet valve 17 is closed. Water to be treated overflows to a water inlet branch channel 3 from a water inlet main channel 1 through a single-lattice water inlet weir 2, enters from the bottom of the filter tank laterally through a water and gas distribution channel 6 at the bottom of the central channel through a water inlet branch pipe 4, sequentially passes through a water and gas distribution system 7, a supporting layer 8 and an activated carbon filtering layer 9 from bottom to top, is collected by a water collecting tank 11, then enters an upper-layer water production and drainage channel 10 of the central channel, is converged into a water production branch channel 12, and then enters a water production main channel 14 through a single-lattice water production weir 13 to form normal water outlet.

When the upward flow activated carbon filter is back flushed, air (air) is adopted to flush and flush wastewater is discharged. When air is flushed, the water inlet valve 5 is closed, and the air pipe valve 15 is opened. A backflushing gas pipe 16 is connected from the lower side of the water production main canal 14. The airflow direction sequentially passes through the bottom water and air distribution system 7, the supporting layer 8 and the carbon filter layer 9 from bottom to top; when the water is flushed, the water inlet valve 5 and the water outlet valve 17 are opened, the filtering layer is flushed from bottom to top by the inflow water of the water to be treated, and the flushing wastewater is discharged to the water discharge channel 18 through the water outlet valve 17. At the moment, because the water production weir is higher than the water level in the water production main canal, the water produced by other filter tanks cannot be discharged along with the flushing wastewater.

The water and gas distribution channel 6 at the bottom layer of the central channel extends out of the filter chamber towards two ends, and the two sides are connected with a water inlet branch pipe 4 and a backflushing gas pipe 16. The channel top at one side of the recoil air pipe 16 is higher than the water and gas distribution channel top to form a height difference to facilitate gas collection and exhaust, and a manhole cover plate 19 is arranged at the position.

Claims

1. The utility model provides an upward flow active carbon filter, including a plurality of single check filtering pond, the single check filtering pond includes single check central canal and both sides filter check, its characterized in that single check central canal is double-deck canal, the bottom is established the distribution canal of joining in marriage, the upper strata is established production water drainage canal, both sides are strained check upper portion and are established the catch basin and are communicated with production water drainage canal, the main canal of intaking is established to the one end of single check central canal, the main canal of intaking is connected with the distribution canal of intaking of this single check filtering pond through single check intake weir, the distribution canal of intaking is connected to the distribution canal of central canal bottom through the branch pipe that intakes, distribution canal lateral wall of distribution canal is established and is strained the distribution hole and the gas distribution hole that the check communicates with both sides, the other end of single check central canal is established the production water distribution canal that corresponds with this single check filtering pond, central canal upper strata production water drainage canal passes through intercommunicating pore and production water distribution canal, the production water distribution canal is connected with the main canal through single check production weir.

2. An upflow activated carbon filter as in claim 1, wherein the width of the single-cell weir is the same as the width of the single-cell filter, and the weir crest of the single-cell weir is lower than the water level of the water collection tank and higher than the highest water level of the main water channel.

3. An upward flow activated carbon filter according to claim 1, wherein the bottom of the upper water production and drainage channel is filled with water and slopes to the drainage side, the lower part of the upper water production and drainage channel of the center channel is provided with a drainage valve connected with a drainage main channel, and the drainage main channel is arranged below the water inlet main channel or the water production main channel.

4. An upward flow activated carbon filter as claimed in claim 1, wherein the water and gas distribution channel at the bottom of the central channel extends from the outside of the filter, and is connected at both sides with a water inlet branch pipe and a back-flushing gas pipe, and the channel top at one end of the back-flushing gas pipe is higher than the water and gas distribution channel top in the filter.

5. An upflow activated carbon filter as in claim 1 in which the inlet manifold is provided with an inlet valve.

6. The upward-flow activated carbon filter according to claim 1, wherein the water collection tank is a stainless steel square tank.