WO2022127011A1 - Water filtering equipment and working method thereof - Google Patents

Water filtering equipment and working method thereof Download PDF

Info

Publication number
WO2022127011A1
WO2022127011A1 PCT/CN2021/093337 CN2021093337W WO2022127011A1 WO 2022127011 A1 WO2022127011 A1 WO 2022127011A1 CN 2021093337 W CN2021093337 W CN 2021093337W WO 2022127011 A1 WO2022127011 A1 WO 2022127011A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
pipe
air
backwash
gas
Prior art date
Application number
PCT/CN2021/093337
Other languages
French (fr)
Chinese (zh)
Inventor
陈海鹰
檀冰
王道新
邱汝彬
Original Assignee
福州海恒水务设备有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 福州海恒水务设备有限公司 filed Critical 福州海恒水务设备有限公司
Publication of WO2022127011A1 publication Critical patent/WO2022127011A1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46Regenerating the filtering material in the filter
    • B01D24/4631Counter-current flushing, e.g. by air
    • B01D24/4636Counter-current flushing, e.g. by air with backwash shoes; with nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/007Filters 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
    • B01D24/008Filters 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02Filters 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
    • B01D24/10Filters 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 held in a closed container
    • B01D24/12Downward filtration, the filtering material being supported by pervious surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/38Feed or discharge devices
    • B01D24/40Feed or discharge devices for feeding
    • B01D24/402Feed or discharge devices for feeding containing fixed liquid displacement elements or cores

Definitions

  • the present invention relates to a water filtration device and its working method.
  • the conventional filter tank mainly uses quartz sand as the filter material.
  • the filtered water passes through the water inlet valve and the square hole from the main water inlet channel, overflows the weir mouth, and then enters the V-shaped groove through the side hole. It enters the filter tank through the V-shaped groove and the water distribution hole at the bottom of the V-shaped groove respectively.
  • the filter tank After the filtered water passes through the filter material layer from top to bottom, it is collected by the water distribution system and enters the clear water tank; when the effluent quality does not meet the requirements or the filter layer When the water head loss reaches the maximum value, the filter tank needs to be backwashed.
  • the backwash gas and water pass through the filter material layer from bottom to top through the water distribution system.
  • the sand particles begin to move, causing the sand particles to rub and collide with each other, and the sludge attached to the surface of the sand particles falls off during the friction between the sand particles. ..
  • the present invention improves the above problems, that is, the technical problem to be solved by the present invention provides a water filtration device and a working method thereof.
  • the water filtration device has a simple structure, is convenient to manufacture, and is flexible to use.
  • the water filtration equipment of the present invention is characterized in that it comprises a cylindrical tank with a sewage water inlet on the upper part, a gas-water backwash chamber arranged in the bottom of the cylindrical tank, and a gas-water backwash chamber provided in the cylindrical tank and located above the gas-water backwash chamber.
  • the filter layer, the air and water recoil chamber is provided with an air and water recoil mechanism, and the air and water recoil mechanism includes a lower center pipe with an air wash port and a water wash port on the pipe wall, and a lower center pipe with an air wash port and a water wash port on the pipe wall.
  • the backwash air inlet pipe and the backwash water inlet pipe are connected by pipes.
  • the backwash air inlet pipe is provided with a plurality of air ports along its length direction, and the backwash water inlet pipe is provided with a plurality of drain ports along its length direction.
  • An upper center pipe with a closed bottom is arranged above the gas-water recoil chamber, a sewage overflow inlet is arranged on the upper center pipe, and a sewage pipeline extending out of the gas-water recoil chamber is arranged on the lower side of the upper center pipe.
  • the above-mentioned cylindrical tank is a cylindrical stainless steel tank body, and a circle of cofferdam plates is arranged on the inner wall surface of the cylindrical tank and on the side of the sewage inlet, and the cofferdam plate and the inner wall surface of the cylindrical tank form a ring shape. Grooves with serrations on the upper edge of the cofferdam plate.
  • a plurality of support rods are arranged between the inner wall surface of the cylindrical tank and the upper central pipe.
  • the filter layer is located between the inner wall surface of the cylindrical tank and the upper central tube, and the filter layer includes a fine quartz sand filter material layer and a coarse quartz sand filter material layer.
  • the plate surface of the air-water backflushing chamber in contact with the filter layer has filter holes or a long-handled filter cap.
  • the upper port of the upper central pipe is higher than the upper surface of the filter layer.
  • the above-mentioned backwash intake pipe includes an intake annular pipe and a plurality of backwash intake branch pipes for connecting the lower central pipe and the intake annular pipe
  • the backwash water intake pipe includes a water intake annular pipe and a plurality of The backwash water inlet branch pipe connecting the water inlet annular pipe and the lower central pipe.
  • the side part of the lower central pipe is provided with a water washing pipe extending out of the air-water backwash chamber, and the end of the water washing pipe is communicated with the water washing port; the side part of the lower central pipe is provided with an air wash extending out of the air-water backwash chamber
  • the air wash pipe is communicated with the air wash port, and the air wash port is located above the water wash port of the water inlet pipe.
  • the working method of the water filtration equipment of the present invention is characterized in that: the water filtration equipment comprises a cylindrical tank with a sewage water inlet on the upper part, a gas-water backwash chamber provided in the cylindrical tank with a closed bottom, and a cylindrical tank provided in the cylindrical tank.
  • the filter layer is located above the gas-water recoil chamber.
  • the gas-water recoil chamber is provided with an air and water recoil mechanism.
  • the air and water recoil mechanism includes a lower center with an air wash port and a water wash port on the pipe wall.
  • the pipe and its periphery are provided with a backwash air inlet pipe and a backwash water inlet pipe respectively communicating with the lower central pipe.
  • the backwash air inlet pipe is provided with a plurality of air ports along its length direction, and the backwash water inlet pipe is provided with a plurality of air ports along its length direction.
  • the sewage pipeline of the flushing chamber when the filtration is working, the sewage enters the cylindrical tank from the sewage water inlet, and the filtered water enters the air-water backwashing chamber, the backwashing water inlet pipe and the lower central pipe after being filtered layer by layer of the filter layer. Finally, the filtered water is discharged from the water washing pipe on the lower center pipe.
  • the filter structure works for a period of time, when the dirt in the filter layer reaches a considerable amount, the filtration resistance of the filter layer increases, resulting in a decrease in the amount of filtration. At this time, the filter layer needs to be backwashed to remove the dirt in the filter layer.
  • the filter layer will wash away the impurities deposited on the filter layer; when high-pressure water is flushed, the high-pressure flushing water will be passed into the water washing pipe, and the water will flow from the inside of the lower center pipe through the backwashing water inlet pipe, the water outlet, and the gas-water backwashing chamber in turn. And the long handle filter cap enters the filter layer, and the water flows through the filter layer to wash the impurities filtered and deposited on the filter layer.
  • the present invention has the following beneficial effects: the device is simple in structure, reasonable in design, convenient in use, good in sewage filtration and backwashing effect, convenient in production and manufacture, flexible in movement, convenient in replacement and maintenance, and suitable for different use scenarios .
  • Fig. 1 is the sectional structure schematic diagram of the present invention
  • Fig. 2 is the partial structure schematic diagram of Fig. 1;
  • Figure 3 is a perspective view of the gas and water recoil mechanism
  • Fig. 4 is the top view of gas, water recoil mechanism
  • Fig. 5 is the water flow schematic diagram of filtered water
  • Figure 6 is a schematic diagram of water flow during backwashing.
  • the water filtration equipment of the present invention comprises a cylindrical tank 2 with a sewage water inlet 1 on the upper part, a gas-water backwash chamber 3 provided in the cylindrical tank 2 with a closed bottom, and a gas-water backwash chamber 3 provided in the cylindrical tank 2 and located above the gas-water backwash chamber
  • the filter layer 4 the space in the gas-water recoil chamber 3 is relatively airtight, not absolutely closed, the gas-water recoil chamber 3 is provided with an air and water recoil mechanism 5, and the gas and water recoil mechanism 5
  • the lower center pipe 8 with the air washing port 6 and the water washing port 7 on the pipe wall, the backwash air inlet pipe 9 and the backwash water inlet pipe 10 which are respectively communicated with the lower center pipe 8 are arranged on the periphery, and the backwash air inlet pipe 9 is along its length.
  • Pipe 13 the upper end of the upper center pipe is provided with a sewage overflow inlet 14, the lower side of the upper center pipe is provided with a sewage pipe 15 extending out of the gas-water backwash chamber, the outer periphery of the cylindrical tank 2 and the gas-water backwash chamber 3
  • the wall surface can be integrally made into a cylindrical shell, and a diaphragm 16 is arranged in the lower part of the cylindrical shell, so that the cylindrical shell, its bottom surface and the diaphragm form a closed gas-water recoil chamber 3, and the upper central pipe
  • the lower central tube and the upper central tube can be coaxial tube bodies, and the parts where the upper central tube and the lower central tube are connected with the diaphragm can be reinforced by reinforcing rib plates.
  • the sewage enters the cylindrical tank from the sewage inlet. After the filtered water and the sewage are filtered layer by layer, they enter the air-water backwash chamber, the backwash water inlet pipe and the lower center pipe. Finally, the filtered water It is discharged from the water washing pipe on the lower center pipe.
  • the above-mentioned cylindrical tank is a cylindrical stainless steel tank, which is convenient to manufacture and has good structural stability.
  • the weir plate 30, the cofferdam plate and the inner wall of the cylindrical tank form an annular groove 17, and the upper edge of the cofferdam plate has serrations 18.
  • a number of support rods 31 are arranged between the inner wall surface of the cylindrical tank and the upper center pipe.
  • the cylindrical tank has 2-4 layers, and each layer is evenly distributed with 2-4 support rods Rod 31.
  • the above-mentioned filter layer 4 is located between the inner wall surface of the cylindrical tank and the upper central tube.
  • the filter layer 4 includes a fine quartz sand filter material layer 19 and a coarse quartz sand filter material layer 20 from top to bottom in turn.
  • the thickness of the quartz sand filter material layer 19 may be 1-8 times the thickness of the coarse quartz sand filter material layer 20 .
  • the plate surface of the gas-water backflushing chamber in contact with the filter layer ie, the diaphragm 16
  • the filter can be selected as a long-handled filter cap 27 .
  • the upper port of the upper central pipe ie the sewage overflow inlet 14
  • the upper end of the upper central pipe has a positive conical shell 21 and a reverse conical shell 22 connected to each other, Adopting the design of the forward conical shell 21 and the reverse conical shell 22 (the upper port of the upper central pipe is small) is beneficial to avoid the reverse flow of sewage entering the upper central pipe.
  • the above-mentioned backflushing intake pipe 9 includes an intake annular pipe 23 and a plurality of backflushing intake branch pipes 24 for connecting the lower central pipe 8 and the intake annular pipe 23.
  • the backflushing water intake pipe 10 It includes a water inlet annular pipe 25 and a plurality of backwash water inlet branch pipes 26 for connecting the water inlet annular pipe and the lower central pipe.
  • the diameters of the gas ring pipe 23 and the water inlet ring pipe 25 can be different and can be located at different heights.
  • the backwash air inlet branch pipe 24 and the backwash water inlet branch pipe 26 are radially distributed, and several are evenly distributed in the circumferential direction.
  • the air port 11 is arranged on the inlet annular pipe 23 and the backwash inlet branch pipe 24, and the water outlet 12 is arranged on the water inlet annular pipe 25 and the backwash water inlet branch pipe 26.
  • the water will pass through the filter layer 4, the long-handled filter cap 27, the gas-water backwash chamber 3, the drain port 12, the lower center pipe 8 and the water washing pipe in turn.
  • the water passes through the water washing pipe, the lower central pipe 8, the water outlet 12, the gas-water backwash chamber 3, the long-handled filter cap 27 and the filter layer 4 in sequence.
  • the side part of the lower central pipe is provided with a water washing pipe 28 extending out of the gas-water backwash chamber, and the end of the water washing pipe is communicated with the water washing port 7; 29, the air wash pipe is communicated with the air wash port 6, the air wash port is located above the water wash port of the water inlet pipe, and the water wash pipe 28 and the air wash pipe 29 are connected with opening and closing valves to control the on-off of water or gas.
  • An air wash branch pipe 32 is branched on the air wash pipe 29, and the end of the air wash branch pipe 32 is connected to the top of the annular groove 17, so as to facilitate the air wash, make the dirt more easily flow into the filter layer, and also help the air wash to be located in the filter layer.
  • the water filtration equipment comprises a cylindrical tank with a sewage water inlet on the upper part, a gas-water backwash chamber provided in the cylindrical tank and closed at the bottom, and a gas-water recoil chamber provided in the cylindrical tank and located in the gas-water
  • the filter layer above the recoil chamber, the air-water recoil chamber is provided with an air and water recoil mechanism, and the air and water recoil mechanism includes a lower center pipe with an air wash port and a water wash port on the pipe wall, and a peripheral setting There are a backwash air inlet pipe and a backwash water inlet pipe which are respectively communicated with the lower central pipe.
  • the backwash air inlet pipe is provided with a plurality of air ports along its length direction, and the backwash water inlet pipe is provided with a plurality of drain ports along its length direction.
  • Pipeline; the dirt overflowing into the upper center pipe is discharged through the sewage pipe on the lower side of the upper center pipe.
  • the filter structure works for a period of time, when the dirt in the filter layer reaches a considerable amount, the filtration resistance of the filter layer increases, resulting in a decrease in the amount of filtration. At this time, the filter layer needs to be backwashed to remove the dirt in the filter layer.
  • the filter layer will wash away the impurities deposited on the filter layer; when high-pressure water is flushed, the high-pressure flushing water will be passed into the water washing pipe, and the water will flow from the inside of the lower center pipe through the backwashing water inlet pipe, the water outlet, and the gas-water backwashing chamber in turn. And the long handle filter cap enters the filter layer, and the water flows through the filter layer to wash the impurities filtered and deposited on the filter layer.
  • Pipeline discharge when high-pressure water flushing and high-pressure air flushing are carried out together, that is, the above two methods are carried out at the same time, that is, high-pressure flushing water is introduced into the water washing pipe and high-pressure gas is introduced into the air-washing pipe. , the water flow rate can be doubled.
  • the filtration period of the water filtration equipment of the invention is extended by about 75% compared with the existing filter tank with pure water flushing, the amount of intercepted sewage can be increased by 118%, and the consumption of backwash water can be reduced by more than 40% compared with the filter tank with pure water flushing ,
  • the filter tank is flushed with air, the air is pressed into the filter layer 4 by the blower (connected to the air washing pipe 29), so the filtering performance of the filter tank is improved from the following aspects:
  • the particles of the filter material can be continuously vortexed and diffused, which promotes the cyclic mixing of the filter layer particles, thereby obtaining a mixed filter layer with a relatively uniform gradation, and its porosity is higher than that of the gradation.
  • the grading filter layer of the filter material improves the filtration performance, thereby improving the filter layer's ability to intercept dirt.
  • fixed connection can be understood as: detachable fixed connection (for example, using bolts or screws), or It is understood as: non-removable fixed connection (such as riveting, welding), of course, the mutual fixed connection can also be replaced by a one-piece structure (for example, integrally formed using a casting process) (except that it is obviously impossible to use the one-piece forming process).
  • Any component provided by the present invention may be assembled from a plurality of individual components, or may be a single component manufactured by an integral molding process.

Abstract

Water filtering equipment and a working method thereof. The water filtering equipment comprises a cylindrical tank (2) of which the upper part is provided with a sewage inlet (1), an air-water backwashing chamber (3) disposed at the bottom in the cylindrical tank (2), and filtering layers (4) disposed in the cylindrical tank (2) and located above the air-water backwashing chamber (3). An air-water backwashing mechanism (5) is provided in the air-water backwashing chamber (3). The air-water backwashing mechanism (5) comprises a lower central pipe (8) of which the pipe wall is provided with an air washing port (6) and a water washing port (7), and a backwashing air inlet pipe (9) and a backwashing water inlet pipe (10) that separately communicate with the lower central pipe (8) and is disposed on the periphery. A plurality of air ports (11) are formed in the backwashing air inlet pipe (9) in the length direction thereof, and a plurality of drainage ports (12) are formed in the backwashing water inlet pipe (10) in the length direction thereof. An upper central pipe (13) that is closed at the bottom surface is provided in the cylindrical tank (2) and located above the air-water backwashing chamber (3). A sewage overflow inlet (14) is formed in the upper central pipe (13). The lower side portion of the upper central pipe (13) is provided with a sewage drainage pipe (15) extending out of the air-water backwashing chamber (3). During filtration, sewage enters the cylindrical tank (2) from the sewage inlet (1), water to be filtered enters the air-water backwashing chamber (3), the backwashing air inlet pipe (9), and the lower central pipe (8) after being sequentially filtered by the filtering layers (4) one by one, and finally the filtered water is discharged from a water washing pipe (28) on the lower central pipe (8).

Description

用水过滤设备及其工作方法Water filtration equipment and its working method 技术领域technical field
本发明涉及一种用水过滤设备及其工作方法。The present invention relates to a water filtration device and its working method.
背景技术Background technique
过滤是水处理的重要工艺,常规滤池主要采用石英砂作为滤料,过滤时,滤水由进水总渠经过进水阀和方孔后,溢过堰口再经侧孔进入V型槽,分别经V型槽和V型槽底的配水孔进入滤池内,待滤水自上而下通过滤料层后,再经过配水系统收集而进入清水池;当出水水质不满足要求或滤层水头损失达到最大值时,滤池需要进行反冲洗,为使滤料层处于悬浮状态,反冲洗气、水经配水系统自下而上穿过滤料层,当气流、水流到达一定强度时,驱动砂粒开始运动,使砂粒之间相互摩擦、碰撞,砂粒表面附着的污泥,在砂粒之间相互摩擦中脱落,这些污泥随着废水向上流动,进入滤池中部的管道上的排污口排走.。Filtration is an important process for water treatment. The conventional filter tank mainly uses quartz sand as the filter material. During filtration, the filtered water passes through the water inlet valve and the square hole from the main water inlet channel, overflows the weir mouth, and then enters the V-shaped groove through the side hole. It enters the filter tank through the V-shaped groove and the water distribution hole at the bottom of the V-shaped groove respectively. After the filtered water passes through the filter material layer from top to bottom, it is collected by the water distribution system and enters the clear water tank; when the effluent quality does not meet the requirements or the filter layer When the water head loss reaches the maximum value, the filter tank needs to be backwashed. In order to keep the filter material layer in a suspended state, the backwash gas and water pass through the filter material layer from bottom to top through the water distribution system. The sand particles begin to move, causing the sand particles to rub and collide with each other, and the sludge attached to the surface of the sand particles falls off during the friction between the sand particles. ..
技术问题technical problem
传统的用水过滤设备一般采用浇筑的方式制成,内部的结构复杂,施工繁琐、制作周期长,灵活性差,使用不便。Traditional water filtration equipment is generally made by pouring, the internal structure is complex, the construction is cumbersome, the production cycle is long, the flexibility is poor, and it is inconvenient to use.
技术解决方案technical solutions
本发明针对上述问题进行改进,即本发明要解决的技术问题提供一种用水过滤设备及其工作方法,该用水过滤设备结构简单、制作方便,使用灵活。The present invention improves the above problems, that is, the technical problem to be solved by the present invention provides a water filtration device and a working method thereof. The water filtration device has a simple structure, is convenient to manufacture, and is flexible to use.
本发明用水过滤设备,其特征在于:包括上部具有污水进水口的柱形罐、设在柱形罐内底部的气水反冲室和设在柱形罐内且位于气水反冲室上方的过滤层,所述气水反冲室内设有气、水反冲机构,所述气、水反冲机构包括管壁上具有气洗口及水洗口的下中心管、外围设置有分别与下中心管连通的反冲洗进气管和反冲洗进水管,反冲洗进气管沿其长度方向设有多个气口,所述反冲洗进水管沿其长度方向设置有多个排水口,所述柱形罐内且位于气水反冲室上方设有底面封闭的上中心管,上中心管上设有污水溢流入口,上中心管下侧部设置有伸出气水反冲室的排污管路。The water filtration equipment of the present invention is characterized in that it comprises a cylindrical tank with a sewage water inlet on the upper part, a gas-water backwash chamber arranged in the bottom of the cylindrical tank, and a gas-water backwash chamber provided in the cylindrical tank and located above the gas-water backwash chamber. The filter layer, the air and water recoil chamber is provided with an air and water recoil mechanism, and the air and water recoil mechanism includes a lower center pipe with an air wash port and a water wash port on the pipe wall, and a lower center pipe with an air wash port and a water wash port on the pipe wall. The backwash air inlet pipe and the backwash water inlet pipe are connected by pipes. The backwash air inlet pipe is provided with a plurality of air ports along its length direction, and the backwash water inlet pipe is provided with a plurality of drain ports along its length direction. An upper center pipe with a closed bottom is arranged above the gas-water recoil chamber, a sewage overflow inlet is arranged on the upper center pipe, and a sewage pipeline extending out of the gas-water recoil chamber is arranged on the lower side of the upper center pipe.
进一步的,上述柱形罐为圆柱形不锈钢罐体,在柱形罐的内壁面且位于污水进水口的旁侧设有一圈的围堰板,所述围堰板与柱形罐内壁面形成环形凹槽,在围堰板的上边缘具有锯齿。Further, the above-mentioned cylindrical tank is a cylindrical stainless steel tank body, and a circle of cofferdam plates is arranged on the inner wall surface of the cylindrical tank and on the side of the sewage inlet, and the cofferdam plate and the inner wall surface of the cylindrical tank form a ring shape. Grooves with serrations on the upper edge of the cofferdam plate.
进一步的,上述柱形罐内壁面与上中心管之间设有若干支撑杆。Further, a plurality of support rods are arranged between the inner wall surface of the cylindrical tank and the upper central pipe.
进一步的,上述过滤层位于柱形罐内壁面与上中心管之间的位置,所述过滤层包括细石英砂滤料层和粗石英砂滤料层。Further, the filter layer is located between the inner wall surface of the cylindrical tank and the upper central tube, and the filter layer includes a fine quartz sand filter material layer and a coarse quartz sand filter material layer.
进一步的,上述气水反冲室与过滤层接触的板面具有过滤孔或安装长柄滤帽。Further, the plate surface of the air-water backflushing chamber in contact with the filter layer has filter holes or a long-handled filter cap.
进一步的,上述上中心管的上端口高于过滤层的上表面。Further, the upper port of the upper central pipe is higher than the upper surface of the filter layer.
进一步的,上述反冲洗进气管包括进气环形管以及多个用以连通下中心管与进气环形管的反冲洗进气支管,所述反冲洗进水管包括进水环形管以及多个用以连通进水环形管与下中心管的反冲洗进水支管。Further, the above-mentioned backwash intake pipe includes an intake annular pipe and a plurality of backwash intake branch pipes for connecting the lower central pipe and the intake annular pipe, and the backwash water intake pipe includes a water intake annular pipe and a plurality of The backwash water inlet branch pipe connecting the water inlet annular pipe and the lower central pipe.
进一步的,上述下中心管侧部设置有伸出气水反冲室的水洗管,所述水洗管端部与水洗口连通;所述下中心管侧部设置有伸出气水反冲室的气洗管,所述气洗管与气洗口连通,所述气洗口位于进水管的水洗口上方。Further, the side part of the lower central pipe is provided with a water washing pipe extending out of the air-water backwash chamber, and the end of the water washing pipe is communicated with the water washing port; the side part of the lower central pipe is provided with an air wash extending out of the air-water backwash chamber The air wash pipe is communicated with the air wash port, and the air wash port is located above the water wash port of the water inlet pipe.
本发明用水过滤设备的工作方法,其特征在于:所述用水过滤设备包括上部具有污水进水口的柱形罐、设在柱形罐内底部密闭的气水反冲室和设在柱形罐内且位于气水反冲室上方的过滤层,所述气水反冲室内设有气、水反冲机构,所述气、水反冲机构包括管壁上具有气洗口及水洗口的下中心管、外围设置有分别与下中心管连通的反冲洗进气管和反冲洗进水管,反冲洗进气管沿其长度方向设有多个气口,所述反冲洗进水管沿其长度方向设置有多个排水口,所述柱形罐内且位于气水反冲室上方设有底面封闭的上中心管,上中心管的上端设有污水溢流入口,上中心管下侧部设置有伸出气水反冲室的排污管路;过滤工作时,污水从污水进水口进入柱形罐内,待滤水依次经过滤层的层层过滤后进入气水反冲室、反冲洗进水管和下中心管内,最后过滤后的水由下中心管上的水洗管排出。The working method of the water filtration equipment of the present invention is characterized in that: the water filtration equipment comprises a cylindrical tank with a sewage water inlet on the upper part, a gas-water backwash chamber provided in the cylindrical tank with a closed bottom, and a cylindrical tank provided in the cylindrical tank. The filter layer is located above the gas-water recoil chamber. The gas-water recoil chamber is provided with an air and water recoil mechanism. The air and water recoil mechanism includes a lower center with an air wash port and a water wash port on the pipe wall. The pipe and its periphery are provided with a backwash air inlet pipe and a backwash water inlet pipe respectively communicating with the lower central pipe. The backwash air inlet pipe is provided with a plurality of air ports along its length direction, and the backwash water inlet pipe is provided with a plurality of air ports along its length direction. Drainage outlet, in the cylindrical tank and above the gas-water recoil chamber, there is an upper center pipe with a closed bottom surface, the upper end of the upper center pipe is provided with a sewage overflow inlet, and the lower side of the upper center pipe is provided with a protruding gas-water counter. The sewage pipeline of the flushing chamber; when the filtration is working, the sewage enters the cylindrical tank from the sewage water inlet, and the filtered water enters the air-water backwashing chamber, the backwashing water inlet pipe and the lower central pipe after being filtered layer by layer of the filter layer. Finally, the filtered water is discharged from the water washing pipe on the lower center pipe.
当过滤结构工作了一段时间后,滤层中的污物达到相当的量时,过滤层过滤阻力增大,造成过滤量减少,此时需要对滤层进行反冲洗工作,将滤层中的污物反冲排出,恢复滤层的过滤能力;反冲洗工作时,首先仅使用高压气对污物进行冲散,然后高压水冲洗、高压气冲一起进行,最后进行仅采用高压水冲洗;仅使用高压气对污物进行冲散时,采用充气设备通过气洗管向内部吹气,气体由下中心管内部依次经反冲洗进气管、气口、气水反冲室及长柄滤帽,气体穿过滤层并将滤层上过滤沉积的杂质冲散;高压水冲洗时,向水洗管通入高压冲洗的水,水流由下中心管内部依次经反冲洗进水管、排水口、气水反冲室及长柄滤帽进入滤层,水流穿过滤层对滤层上过滤沉积的杂质进行水冲洗,高压水冲洗可将水过滤残留的杂质冲洗至上中心管的上端的污水溢流入口,最后由排污管道排出;高压水冲洗、高压气冲一起进行时,即上述两种方式同时进行,即向水洗管通入高压冲洗的水和向气洗管通入高压气。When the filter structure works for a period of time, when the dirt in the filter layer reaches a considerable amount, the filtration resistance of the filter layer increases, resulting in a decrease in the amount of filtration. At this time, the filter layer needs to be backwashed to remove the dirt in the filter layer. Backflushing and discharging of the material to restore the filtration capacity of the filter layer; during backflushing, first, only high-pressure gas is used to disperse the dirt, then high-pressure water flushing and high-pressure gas flushing are performed together, and finally, only high-pressure water flushing is performed; When the high-pressure gas is used to disperse the dirt, the inflatable equipment is used to blow air into the interior through the air wash pipe, and the gas flows from the inside of the lower center pipe through the backwash intake pipe, air port, air-water backwash chamber and long-handled filter cap in turn. The filter layer will wash away the impurities deposited on the filter layer; when high-pressure water is flushed, the high-pressure flushing water will be passed into the water washing pipe, and the water will flow from the inside of the lower center pipe through the backwashing water inlet pipe, the water outlet, and the gas-water backwashing chamber in turn. And the long handle filter cap enters the filter layer, and the water flows through the filter layer to wash the impurities filtered and deposited on the filter layer. Pipeline discharge; when high-pressure water flushing and high-pressure air flushing are carried out together, the above two methods are carried out simultaneously, that is, the water for high-pressure flushing is introduced into the water washing pipe and the high-pressure gas is introduced into the air-washing pipe.
有益效果beneficial effect
与现有技术相比,本发明具有以下有益效果:本装置结构简单,设计合理,使用方便,污水过滤性及反冲洗效果好,生产制作方便、移动灵活,更换维护便利,适用于不同使用场景。Compared with the prior art, the present invention has the following beneficial effects: the device is simple in structure, reasonable in design, convenient in use, good in sewage filtration and backwashing effect, convenient in production and manufacture, flexible in movement, convenient in replacement and maintenance, and suitable for different use scenarios .
附图说明Description of drawings
图1是本发明的剖面构造示意图;Fig. 1 is the sectional structure schematic diagram of the present invention;
图2是图1的局部构造示意图;Fig. 2 is the partial structure schematic diagram of Fig. 1;
图3是气、水反冲机构的立体图;Figure 3 is a perspective view of the gas and water recoil mechanism;
图4是气、水反冲机构的俯视图;Fig. 4 is the top view of gas, water recoil mechanism;
图5是过滤水的水流示意图;Fig. 5 is the water flow schematic diagram of filtered water;
图6是反冲洗时的水流示意图。Figure 6 is a schematic diagram of water flow during backwashing.
本发明的实施方式Embodiments of the present invention
下面结合附图和具体实施方式对本发明做进一步详细的说明。The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
本发明用水过滤设备包括上部具有污水进水口1的柱形罐2、设在柱形罐2内底部密闭的气水反冲室3和设在柱形罐2内且位于气水反冲室上方的过滤层4,气水反冲室3内空间是相对密闭的,并非绝对封闭,所述气水反冲室3内设有气、水反冲机构5,所述气、水反冲机构5包括管壁上具有气洗口6及水洗口7的下中心管8、外围设置有分别与下中心管8连通的反冲洗进气管9和反冲洗进水管10,反冲洗进气管9沿其长度方向设有多个气口11,所述反冲洗进水管10沿其长度方向设置有多个排水口12,所述柱形罐2内且位于气水反冲室3上方设有底面封闭的上中心管13,上中心管的上端设有污水溢流入口14,上中心管下侧部设置有伸出气水反冲室的排污管路15,上述柱形罐2与气水反冲室3的外周壁面可以一体制成柱形壳体,在柱形壳体中下部设有横隔板16,以使柱形壳体及其底面和横隔板形成密闭的气水反冲室3,上中心管和下中心管可以是同轴的管体,上中心管和下中心管与横隔板连接的部位均可通过加强筋板进行加固。The water filtration equipment of the present invention comprises a cylindrical tank 2 with a sewage water inlet 1 on the upper part, a gas-water backwash chamber 3 provided in the cylindrical tank 2 with a closed bottom, and a gas-water backwash chamber 3 provided in the cylindrical tank 2 and located above the gas-water backwash chamber The filter layer 4, the space in the gas-water recoil chamber 3 is relatively airtight, not absolutely closed, the gas-water recoil chamber 3 is provided with an air and water recoil mechanism 5, and the gas and water recoil mechanism 5 Including the lower center pipe 8 with the air washing port 6 and the water washing port 7 on the pipe wall, the backwash air inlet pipe 9 and the backwash water inlet pipe 10 which are respectively communicated with the lower center pipe 8 are arranged on the periphery, and the backwash air inlet pipe 9 is along its length. There are a plurality of air ports 11 in the direction of the backwash water inlet pipe 10, and a plurality of drain ports 12 are provided along the length direction of the backwash water inlet pipe 10. In the cylindrical tank 2 and above the air-water backwash chamber 3, there is an upper center with a closed bottom surface. Pipe 13, the upper end of the upper center pipe is provided with a sewage overflow inlet 14, the lower side of the upper center pipe is provided with a sewage pipe 15 extending out of the gas-water backwash chamber, the outer periphery of the cylindrical tank 2 and the gas-water backwash chamber 3 The wall surface can be integrally made into a cylindrical shell, and a diaphragm 16 is arranged in the lower part of the cylindrical shell, so that the cylindrical shell, its bottom surface and the diaphragm form a closed gas-water recoil chamber 3, and the upper central pipe The lower central tube and the upper central tube can be coaxial tube bodies, and the parts where the upper central tube and the lower central tube are connected with the diaphragm can be reinforced by reinforcing rib plates.
过滤工作时,污水从污水进水口进入柱形罐内,待滤水、污水依次经过滤层的层层过滤后进入气水反冲室、反冲洗进水管和下中心管内,最后过滤后的水由下中心管上的水洗管排出。During the filtration work, the sewage enters the cylindrical tank from the sewage inlet. After the filtered water and the sewage are filtered layer by layer, they enter the air-water backwash chamber, the backwash water inlet pipe and the lower center pipe. Finally, the filtered water It is discharged from the water washing pipe on the lower center pipe.
较佳的是,上述柱形罐为圆柱形不锈钢罐体,采用圆柱形不锈钢罐体制作方便、结构稳定性好,在柱形罐的内壁面且位于污水进水口的旁侧设有一圈的围堰板30,所述围堰板与柱形罐内壁面形成环形凹槽17,在围堰板的上边缘具有锯齿18,在污水从污水进水口1进入罐体后,即流至环形凹槽17内,污水在环形凹槽17内溢满后,从锯齿18从溢流入过滤层4,污水经过过滤层4的过滤后进入气水反冲室3。Preferably, the above-mentioned cylindrical tank is a cylindrical stainless steel tank, which is convenient to manufacture and has good structural stability. The weir plate 30, the cofferdam plate and the inner wall of the cylindrical tank form an annular groove 17, and the upper edge of the cofferdam plate has serrations 18. After the sewage enters the tank from the sewage inlet 1, it flows to the annular groove. 17, after the sewage overflows in the annular groove 17, it flows from the sawtooth 18 into the filter layer 4 from the overflow, and the sewage enters the air-water backwash chamber 3 after being filtered by the filter layer 4.
为了提高罐体和上中心管的连接强度,上述柱形罐内壁面与上中心管之间设有若干支撑杆31,柱形罐内具有2-4层,每层均布2-4根支撑杆31。In order to improve the connection strength between the tank body and the upper center pipe, a number of support rods 31 are arranged between the inner wall surface of the cylindrical tank and the upper center pipe. The cylindrical tank has 2-4 layers, and each layer is evenly distributed with 2-4 support rods Rod 31.
为了制作方便,上述过滤层4是位于柱形罐内壁面与上中心管之间的位置,过滤层4自上而下依次包括细石英砂滤料层19和粗石英砂滤料层20,细石英砂滤料层19的厚度可以为粗石英砂滤料层20厚度的1-8倍。For the convenience of manufacture, the above-mentioned filter layer 4 is located between the inner wall surface of the cylindrical tank and the upper central tube. The filter layer 4 includes a fine quartz sand filter material layer 19 and a coarse quartz sand filter material layer 20 from top to bottom in turn. The thickness of the quartz sand filter material layer 19 may be 1-8 times the thickness of the coarse quartz sand filter material layer 20 .
为了使过滤效果好,上述气水反冲室与过滤层接触的板面(即横隔板16)具有过滤孔或安装过滤器,该过滤器可以选用长柄滤帽27。In order to make the filtration effect good, the plate surface of the gas-water backflushing chamber in contact with the filter layer (ie, the diaphragm 16 ) has filter holes or installed filters, and the filter can be selected as a long-handled filter cap 27 .
为了使排污效果好,上述上中心管的上端口(即污水溢流入口14)高于过滤层的上表面,该上中心管的上端部具有相互连接的正锥壳21和反锥壳22,采用正锥壳21和反锥壳22的设计(上中心管的上端口较小),有利于避免进入上中心管的污水反串外流。In order to make the sewage discharge effect good, the upper port of the upper central pipe (ie the sewage overflow inlet 14) is higher than the upper surface of the filter layer, and the upper end of the upper central pipe has a positive conical shell 21 and a reverse conical shell 22 connected to each other, Adopting the design of the forward conical shell 21 and the reverse conical shell 22 (the upper port of the upper central pipe is small) is beneficial to avoid the reverse flow of sewage entering the upper central pipe.
进一步的,为了设计合理,上述反冲洗进气管9包括进气环形管23以及多个用以连通下中心管8与进气环形管23的反冲洗进气支管24,所述反冲洗进水管10包括进水环形管25以及多个用以连通进水环形管与下中心管的反冲洗进水支管26,进气环形管23、进水环形管25呈环形状设在下中心管的外围,进气环形管23、进水环形管25的直径可以不同,且可以位于不同高度位置,反冲洗进气支管24和反冲洗进水支管26均是径向分布,且在圆周方向各均布几个,气口11布设在进气环形管23和反冲洗进气支管24上,排水口12布设在进水环形管25和反冲洗进水支管26上,通过上述设置,可以使滤水或反冲水时,过水更加均匀,在滤水出水时,水依次经过过滤层4、长柄滤帽27、气水反冲室3、排水口12、下中心管8和水洗管排出,而在反冲水时,水依次经过水洗管、下中心管8、排水口12、气水反冲室3、长柄滤帽27和过滤层4。Further, for the sake of reasonable design, the above-mentioned backflushing intake pipe 9 includes an intake annular pipe 23 and a plurality of backflushing intake branch pipes 24 for connecting the lower central pipe 8 and the intake annular pipe 23. The backflushing water intake pipe 10 It includes a water inlet annular pipe 25 and a plurality of backwash water inlet branch pipes 26 for connecting the water inlet annular pipe and the lower central pipe. The diameters of the gas ring pipe 23 and the water inlet ring pipe 25 can be different and can be located at different heights. The backwash air inlet branch pipe 24 and the backwash water inlet branch pipe 26 are radially distributed, and several are evenly distributed in the circumferential direction. , the air port 11 is arranged on the inlet annular pipe 23 and the backwash inlet branch pipe 24, and the water outlet 12 is arranged on the water inlet annular pipe 25 and the backwash water inlet branch pipe 26. When the water is filtered, the water will pass through the filter layer 4, the long-handled filter cap 27, the gas-water backwash chamber 3, the drain port 12, the lower center pipe 8 and the water washing pipe in turn. When using water, the water passes through the water washing pipe, the lower central pipe 8, the water outlet 12, the gas-water backwash chamber 3, the long-handled filter cap 27 and the filter layer 4 in sequence.
上述下中心管侧部设置有伸出气水反冲室的水洗管28,所述水洗管端部与水洗口7连通;所述下中心管侧部设置有伸出气水反冲室的气洗管29,所述气洗管与气洗口6连通,所述气洗口位于进水管的水洗口上方,水洗管28和气洗管29均连接有启闭阀门,以控制水或气的通断。The side part of the lower central pipe is provided with a water washing pipe 28 extending out of the gas-water backwash chamber, and the end of the water washing pipe is communicated with the water washing port 7; 29, the air wash pipe is communicated with the air wash port 6, the air wash port is located above the water wash port of the water inlet pipe, and the water wash pipe 28 and the air wash pipe 29 are connected with opening and closing valves to control the on-off of water or gas.
在气洗管29上分支有气洗支管32,该气洗支管32端头连接至环形凹槽17上方,以有利于气冲使污物更易于流入过滤层,也有利于气冲位于过滤层上的污物,在气洗支管32上设有启闭阀。An air wash branch pipe 32 is branched on the air wash pipe 29, and the end of the air wash branch pipe 32 is connected to the top of the annular groove 17, so as to facilitate the air wash, make the dirt more easily flow into the filter layer, and also help the air wash to be located in the filter layer. There is an opening and closing valve on the air washing branch pipe 32.
本发明用水过滤设备的工作方法,所述用水过滤设备包括上部具有污水进水口的柱形罐、设在柱形罐内底部密闭的气水反冲室和设在柱形罐内且位于气水反冲室上方的过滤层,所述气水反冲室内设有气、水反冲机构,所述气、水反冲机构包括管壁上具有气洗口及水洗口的下中心管、外围设置有分别与下中心管连通的反冲洗进气管和反冲洗进水管,反冲洗进气管沿其长度方向设有多个气口,所 述反冲洗进水管沿其长度方向设置有多个排水口,所述柱形罐内且位于气水反冲室上方设有底面封闭的上中心管,上中心管的上端设有污水溢流入口,上中心管下侧部设置有伸出气水反冲室的排污管路;溢流入上中心管的污物通过上中心管下侧部的排污管路排出。The working method of the water filtration equipment of the present invention, the water filtration equipment comprises a cylindrical tank with a sewage water inlet on the upper part, a gas-water backwash chamber provided in the cylindrical tank and closed at the bottom, and a gas-water recoil chamber provided in the cylindrical tank and located in the gas-water The filter layer above the recoil chamber, the air-water recoil chamber is provided with an air and water recoil mechanism, and the air and water recoil mechanism includes a lower center pipe with an air wash port and a water wash port on the pipe wall, and a peripheral setting There are a backwash air inlet pipe and a backwash water inlet pipe which are respectively communicated with the lower central pipe. The backwash air inlet pipe is provided with a plurality of air ports along its length direction, and the backwash water inlet pipe is provided with a plurality of drain ports along its length direction. Inside the cylindrical tank and above the gas-water recoil chamber, there is an upper center pipe with a closed bottom surface, the upper end of the upper center pipe is provided with a sewage overflow inlet, and the lower side of the upper center pipe is provided with a sewage outlet extending out of the air-water recoil chamber. Pipeline; the dirt overflowing into the upper center pipe is discharged through the sewage pipe on the lower side of the upper center pipe.
当过滤结构工作了一段时间后,滤层中的污物达到相当的量时,过滤层过滤阻力增大,造成过滤量减少,此时需要对滤层进行反冲洗工作,将滤层中的污物反冲排出,恢复滤层的过滤能力;反冲洗工作时,首先仅使用高压气对污物进行冲散,然后高压水冲洗、高压气冲一起进行,最后进行仅采用高压水冲洗;仅使用高压气对污物进行冲散时,采用充气设备通过气洗管向内部吹气,气体由下中心管内部依次经反冲洗进气管、气口、气水反冲室及长柄滤帽,气体穿过滤层并将滤层上过滤沉积的杂质冲散;高压水冲洗时,向水洗管通入高压冲洗的水,水流由下中心管内部依次经反冲洗进水管、排水口、气水反冲室及长柄滤帽进入滤层,水流穿过滤层对滤层上过滤沉积的杂质进行水冲洗,高压水冲洗可将水过滤残留的杂质冲洗至上中心管的上端的污水溢流入口,最后由排污管道排出;高压水冲洗、高压气冲一起进行时,即上述两种方式同时进行,即向水洗管通入高压冲洗的水和向气洗管通入高压气,在最后的仅仅只有水冲时,水流速率可以为之前的两倍。When the filter structure works for a period of time, when the dirt in the filter layer reaches a considerable amount, the filtration resistance of the filter layer increases, resulting in a decrease in the amount of filtration. At this time, the filter layer needs to be backwashed to remove the dirt in the filter layer. Backflushing and discharging of the material to restore the filtration capacity of the filter layer; during backflushing, first, only high-pressure gas is used to disperse the dirt, then high-pressure water flushing and high-pressure gas flushing are performed together, and finally, only high-pressure water flushing is performed; When the high-pressure gas is used to disperse the dirt, the inflatable equipment is used to blow air into the interior through the air wash pipe, and the gas flows from the inside of the lower center pipe through the backwash intake pipe, air port, air-water backwash chamber and long-handled filter cap in turn. The filter layer will wash away the impurities deposited on the filter layer; when high-pressure water is flushed, the high-pressure flushing water will be passed into the water washing pipe, and the water will flow from the inside of the lower center pipe through the backwashing water inlet pipe, the water outlet, and the gas-water backwashing chamber in turn. And the long handle filter cap enters the filter layer, and the water flows through the filter layer to wash the impurities filtered and deposited on the filter layer. Pipeline discharge; when high-pressure water flushing and high-pressure air flushing are carried out together, that is, the above two methods are carried out at the same time, that is, high-pressure flushing water is introduced into the water washing pipe and high-pressure gas is introduced into the air-washing pipe. , the water flow rate can be doubled.
本发明水过滤设备的过滤周期比现有单纯水冲洗的滤池延长了75%左右,截污水量可提高118%,而反冲洗水的耗量比单纯水冲洗的滤池可减少40%以上,滤池在气冲洗时,由于用鼓风机(接气洗管29)将空气压入过滤层4,因而从以下几方面改善了滤池的过滤性能:The filtration period of the water filtration equipment of the invention is extended by about 75% compared with the existing filter tank with pure water flushing, the amount of intercepted sewage can be increased by 118%, and the consumption of backwash water can be reduced by more than 40% compared with the filter tank with pure water flushing , When the filter tank is flushed with air, the air is pressed into the filter layer 4 by the blower (connected to the air washing pipe 29), so the filtering performance of the filter tank is improved from the following aspects:
①压缩空气的加入增大了过滤层中滤料表面的剪力,从而使得通常水冲洗时不易剥落的污物在气泡急剧上升的高剪力下得以剥落,从而提高了反冲洗效果。①The addition of compressed air increases the shear force on the surface of the filter material in the filter layer, so that the dirt that is not easy to peel off during normal water washing can be peeled off under the high shear force of the sharp rise of air bubbles, thereby improving the backwash effect.
②气泡在滤层中运动产生混合后,可使滤料的颗粒不断涡旋扩散,促进了滤层颗粒循环混合,由此得到一个级配较均匀的混合滤层,其孔隙率高于级配滤料的分级滤层,改善了过滤性能,从而提高了滤层的截污能力。②After the bubbles move in the filter layer to generate mixing, the particles of the filter material can be continuously vortexed and diffused, which promotes the cyclic mixing of the filter layer particles, thereby obtaining a mixed filter layer with a relatively uniform gradation, and its porosity is higher than that of the gradation. The grading filter layer of the filter material improves the filtration performance, thereby improving the filter layer's ability to intercept dirt.
③压缩空气的加入,气泡在颗粒滤料中爆破,使得滤料颗粒间的碰撞磨擦加剧,在水冲洗时,对滤料颗粒表面的剪切作用也得以充分发挥,加强了水冲清污的效能。③ With the addition of compressed air, the air bubbles explode in the granular filter material, which intensifies the collision and friction between the filter material particles. During water washing, the shearing effect on the surface of the filter material particles can also be fully exerted, which strengthens the cleaning effect of water washing. efficacy.
④气泡在滤层中的运动,减少了水冲洗时滤料颗粒间的相互接触的阻力,使水冲洗强度大大降低,从而节省冲洗的能耗。④ The movement of air bubbles in the filter layer reduces the resistance of the mutual contact between the filter particles during water flushing, so that the water flushing intensity is greatly reduced, thereby saving the energy consumption of flushing.
综上所述,气、水反冲洗时,由于气泡的激烈遄动作用,大大加强了污物剥落能力及截污能力;在本设备实际反冲洗时,我们观察到:当反冲时间约5分钟时的滤层污物剥落高达95%以上,因此该设备的反冲洗效果是肯定的。To sum up, during backwashing with air and water, due to the intense trent action of air bubbles, the ability of dirt peeling and interception is greatly enhanced; during the actual backwashing of this equipment, we observed: when the backwashing time is about 5 The filter layer dirt peels off more than 95% in minutes, so the backwash effect of this equipment is certain.
如果本文中使用了“第一”、“第二”等词语来限定零部件的话,本领域技术人员应该知晓:“第一”、“第二”的使用仅仅是为了便于描述上对零部件进行区别如没有另行声明外,上述词语并没有特殊的含义。If words such as "first" and "second" are used herein to define components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing components The above terms have no special meaning unless otherwise stated.
同时,上述本发明如果公开或涉及了互相固定连接的零部件或结构件,那么,除另有声明外,固定连接可以理解为:能够拆卸地固定连接(例如使用螺栓或螺钉连接),也可以理解为:不可拆卸的固定连接(例如铆接、焊接),当然,互相固定连接也可以为一体式结构(例如使用铸造工艺一体成形制造出来)所取代(明显无法采用一体成形工艺除外)。At the same time, if the above-mentioned invention discloses or involves parts or structural parts that are fixedly connected to each other, then, unless otherwise stated, fixed connection can be understood as: detachable fixed connection (for example, using bolts or screws), or It is understood as: non-removable fixed connection (such as riveting, welding), of course, the mutual fixed connection can also be replaced by a one-piece structure (for example, integrally formed using a casting process) (except that it is obviously impossible to use the one-piece forming process).
另外,上述本发明公开的任一技术方案中所应用的用于表示位置关系或形状的术语除另有声明外其含义包括与其近似、类似或接近的状态或形状。In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in the present disclosure used to represent positional relationships or shapes include states or shapes that are similar to, similar to, or close to.
本发明提供的任一部件既可以是由多个单独的组成部分组装而成,也可以为一体成形工艺制造出来的单独部件。Any component provided by the present invention may be assembled from a plurality of individual components, or may be a single component manufactured by an integral molding process.
最后应当说明的是:以上实施例仅用以说明本发明的技术方案而非对其限制;尽管参照较佳实施例对本发明进行了详细的说明,所属领域的普通技术人员应当理解:依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换;而不脱离本发明技术方案的精神,其均应涵盖在本发明请求保护的技术方案范围当中。Finally it should be noted that: the above embodiment is only used to illustrate the technical scheme of the present invention and not to limit it; Although the present invention has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand: The specific embodiments of the invention are modified or some technical features are equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.

Claims (10)

  1. 一种用水过滤设备,其特征在于:包括上部具有污水进水口的柱形罐、设在柱形罐内底部的气水反冲室和设在柱形罐内且位于气水反冲室上方的过滤层,所述气水反冲室内设有气、水反冲机构,所述气、水反冲机构包括管壁上具有气洗口及水洗口的下中心管、外围设置有分别与下中心管连通的反冲洗进气管和反冲洗进水管,反冲洗进气管沿其长度方向设有多个气口,所述反冲洗进水管沿其长度方向设置有多个排水口,所述柱形罐内且位于气水反冲室上方设有底面封闭的上中心管,上中心管上设有污水溢流入口,上中心管下侧部设置有伸出气水反冲室的排污管路。A water filtration device is characterized in that: it comprises a cylindrical tank with a sewage water inlet on the upper part, a gas-water backwash chamber arranged in the bottom of the cylindrical tank, and a water-air backwash chamber provided in the cylindrical tank and located above the gas-water backwash chamber. The filter layer, the air and water recoil chamber is provided with an air and water recoil mechanism, and the air and water recoil mechanism includes a lower center pipe with an air wash port and a water wash port on the pipe wall, and a lower center pipe with an air wash port and a water wash port on the pipe wall. The backwash air inlet pipe and the backwash water inlet pipe are connected by pipes. The backwash air inlet pipe is provided with a plurality of air ports along its length direction, and the backwash water inlet pipe is provided with a plurality of drain ports along its length direction. An upper center pipe with a closed bottom is arranged above the gas-water recoil chamber, a sewage overflow inlet is arranged on the upper center pipe, and a sewage pipeline extending out of the gas-water recoil chamber is arranged on the lower side of the upper center pipe.
  2. 根据权利要求1所述的用水过滤设备,其特征在于:所述柱形罐为圆柱形不锈钢罐体,在柱形罐的内壁面且位于污水进水口的旁侧设有一圈的围堰板,所述围堰板与柱形罐内壁面形成环形凹槽,在围堰板的上边缘具有锯齿。The water filtration equipment according to claim 1, characterized in that: the cylindrical tank is a cylindrical stainless steel tank body, and a circle of cofferdam plates is arranged on the inner wall surface of the cylindrical tank and on the side of the sewage water inlet, The cofferdam plate forms an annular groove with the inner wall surface of the cylindrical tank, and the upper edge of the cofferdam plate has saw teeth.
  3. 根据权利要求1所述的用水过滤设备,其特征在于:所述柱形罐内壁面与上中心管之间设有若干支撑杆。The water filtering device according to claim 1, wherein a plurality of support rods are arranged between the inner wall surface of the cylindrical tank and the upper central pipe.
  4. 根据权利要求1所述的用水过滤设备,其特征在于:所述过滤层位于柱形罐内壁面与上中心管之间的位置,所述过滤层包括细石英砂滤料层和粗石英砂滤料层。The water filtration device according to claim 1, wherein the filter layer is located between the inner wall surface of the cylindrical tank and the upper central pipe, and the filter layer comprises a fine quartz sand filter material layer and a coarse quartz sand filter layer. material layer.
  5. 根据权利要求1所述的用水过滤设备,其特征在于:所述气水反冲室与过滤层接触的板面具有过滤孔或安装长柄滤帽。The water filtration equipment according to claim 1, wherein the plate surface of the gas-water backflushing chamber in contact with the filter layer has filter holes or a long-handled filter cap.
  6. 根据权利要求1所述的用水过滤设备,其特征在于:所述上中心管的上端口高于过滤层的上表面。The water filtration device according to claim 1, wherein the upper port of the upper central pipe is higher than the upper surface of the filter layer.
  7. 根据权利要求1所述的用水过滤设备,其特征在于:所述反冲洗进气管包括进气环形管以及多个用以连通下中心管与进气环形管的反冲洗进气支管,所述反冲洗进水管包括进水环形管以及多个用以连通进水环形管与下中心管的反冲洗进水支管。The water filtration device according to claim 1, wherein the backflushing intake pipe comprises an intake annular pipe and a plurality of backflushing intake branch pipes for connecting the lower central pipe and the intake annular pipe, and the backflushing intake pipe The flushing water inlet pipe includes a water inlet annular pipe and a plurality of backwashing water inlet branch pipes for connecting the water inlet annular pipe and the lower central pipe.
  8. 根据权利要求1所述的用水过滤设备,其特征在于:所述下中心管侧部设置有伸出气水反冲室的水洗管,所述水洗管端部与水洗口连通;所述下中心管侧部设置有伸出气水反冲室的气洗管,所述气洗管与气洗口连通,所述气洗口位于进水管的水洗口上方。The water filtration device according to claim 1, characterized in that: the side of the lower central pipe is provided with a water washing pipe extending out of the gas-water backwash chamber, and the end of the water washing pipe is communicated with the water washing port; the lower central pipe The side part is provided with an air wash pipe extending out of the air-water backwash chamber, the air wash pipe is communicated with the air wash port, and the air wash port is located above the water wash port of the water inlet pipe.
  9. 一种用水过滤设备的工作方法,其特征在于:所述用水过滤设备包括上部具有污水进水口的柱形罐、设在柱形罐内底部的气水反冲室和设在柱形罐内且位于气水反冲室上方的过滤层,所述气水反冲室内设有气、水反冲机构,所述气、水反冲机构包括管壁上具有气洗口及水洗口的下中心管、外围设置有分别与下中心管连通的反冲洗进气管和反冲洗进水管,反冲洗进气管沿其长度方向设有多个气口,所述反冲洗进水管沿其长度方向设置有多个排水口,所述柱形罐内且位于气水反冲室上方设有底面封闭的上中心管,上中心管上设有污水溢流入口,上中心管下侧部设置有伸出气水反冲室的排污管路;过滤工作时,污水从污水进水口进入柱形罐内,待滤水依次经过滤层的层层过滤后进入气水反冲室、反冲洗进水管和下中心管内,最后过滤后的水由下中心管上的水洗管排出。A working method of water filtration equipment, characterized in that: the water filtration equipment comprises a cylindrical tank with a sewage water inlet on the upper part, a gas-water backflushing chamber arranged in the bottom of the cylindrical tank, and a backwash chamber provided in the cylindrical tank and The filter layer is located above the gas-water recoil chamber. The gas-water recoil chamber is provided with an air and water recoil mechanism. The air and water recoil mechanism includes a lower central pipe with an air wash port and a water wash port on the pipe wall. , The periphery is provided with a backwash air inlet pipe and a backwash water inlet pipe which are respectively communicated with the lower central pipe. The backwash air inlet pipe is provided with a plurality of air ports along its length direction, and the backwash water inlet pipe is provided with a plurality of drains along its length direction. Inside the cylindrical tank and above the gas-water recoil chamber, there is an upper center pipe with a closed bottom surface, the upper center pipe is provided with a sewage overflow inlet, and the lower side of the upper center pipe is provided with a gas-water recoil chamber extending out When the filtration works, the sewage enters the cylindrical tank from the sewage inlet, and the filtered water is filtered layer by layer and then enters the gas-water backwash chamber, the backwash water inlet pipe and the lower center pipe, and finally filtered. The latter water is discharged from the water washing pipe on the lower center pipe.
  10. 根据权利要求9所述的用水过滤设备的工作方法,其特征在于:当过滤结构工作了一段时间后,滤层中的污物达到相当的量时,过滤层过滤阻力增大,造成过滤量减少,此时需要对滤层进行反冲洗工作,将滤层中的污物反冲排出,恢复滤层的过滤能力;反冲洗工作时,首先仅使用高压气对污物进行冲散,然后高压水冲洗、高压气冲一起进行,最后进行仅采用高压水冲洗;仅使用高压气对污物进行冲散时,采用充气设备通过气洗管向内部吹气,气体由下中心管内部依次经反冲洗进气管、气口、气水反冲室及长柄滤帽,气体穿过滤层并将滤层上过滤沉积的杂质冲散;高压水冲洗时,向水洗管通入高压冲洗的水,水流由下中心管内部依次经反冲洗进水管、排水口、气水反冲室及长柄滤帽进入滤层,水流穿过滤层对滤层上过滤沉积的杂质进行水冲洗,高压水冲洗可将水过滤残留的杂质冲洗至上中心管的上端的污水溢流入口,最后由排污管道排出;高压水冲洗、高压气冲一起进行时,即上述两种方式同时进行,即向水洗管通入高压冲洗的水和向气洗管通入高压气。The working method of water filtration equipment according to claim 9, wherein when the filter structure works for a period of time, when the dirt in the filter layer reaches a considerable amount, the filtration resistance of the filter layer increases, resulting in a decrease in the amount of filtration. , at this time, the filter layer needs to be backwashed to discharge the dirt in the filter layer and restore the filtration capacity of the filter layer; when backwashing, first only use high-pressure air to disperse the dirt, and then high-pressure water Flushing and high-pressure air flushing are carried out together, and finally, only high-pressure water flushing is carried out; when only high-pressure gas is used to disperse the dirt, the inflatable equipment is used to blow air into the interior through the air-washing pipe, and the gas is sequentially backwashed from the inside of the lower center pipe. Air intake pipe, air port, air-water backwash chamber and long-handled filter cap, the gas passes through the filter layer and disperses the impurities filtered and deposited on the filter layer; when high-pressure water is flushed, the high-pressure flushing water is fed into the water-washing pipe, and the water flows from the bottom The inside of the central pipe enters the filter layer through the backwash water inlet pipe, the drain outlet, the gas-water backwash chamber and the long-handled filter cap in turn. The water flows through the filter layer to wash the impurities filtered and deposited on the filter layer. Residual impurities are flushed to the sewage overflow inlet at the upper end of the upper center pipe, and finally discharged from the sewage pipe; when high-pressure water flushing and high-pressure air flushing are carried out together, the above two methods are carried out simultaneously, that is, the water for high-pressure flushing is passed into the water washing pipe. And the high pressure gas is introduced into the gas washing pipe.
PCT/CN2021/093337 2020-12-15 2021-05-12 Water filtering equipment and working method thereof WO2022127011A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011469877.7A CN112386969A (en) 2020-12-15 2020-12-15 Water filtering equipment and working method thereof
CN202011469877.7 2020-12-15

Publications (1)

Publication Number Publication Date
WO2022127011A1 true WO2022127011A1 (en) 2022-06-23

Family

ID=74625702

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/093337 WO2022127011A1 (en) 2020-12-15 2021-05-12 Water filtering equipment and working method thereof

Country Status (2)

Country Link
CN (1) CN112386969A (en)
WO (1) WO2022127011A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112386969A (en) * 2020-12-15 2021-02-23 福州海恒水务设备有限公司 Water filtering equipment and working method thereof
CN113461216B (en) * 2021-07-23 2022-07-15 河北北洋水处理设备有限公司 Integrated high-efficiency conglomerated water purifying equipment
CN113774996A (en) * 2021-09-22 2021-12-10 广州全一泵业有限公司 Intelligent water supply equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050000877A1 (en) * 1999-09-21 2005-01-06 Sharkey James P. Method and apparatus for removing particulate contaminants from commercial laundry waste water
CN1657134A (en) * 2004-02-20 2005-08-24 深圳市清泉水系统工程设备有限公司 Reverse filtering air water back flushing filtering pond and reverse filtering air water back flushing method
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
CN103071323A (en) * 2013-01-15 2013-05-01 东莞市科达环保工程有限公司 Novel air-water backwashing method of filtering pond
CN203342474U (en) * 2013-05-20 2013-12-18 江苏恒博环境工程设备有限公司 Back-washing device
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
CN112386969A (en) * 2020-12-15 2021-02-23 福州海恒水务设备有限公司 Water filtering equipment and working method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050000877A1 (en) * 1999-09-21 2005-01-06 Sharkey James P. Method and apparatus for removing particulate contaminants from commercial laundry waste water
CN1657134A (en) * 2004-02-20 2005-08-24 深圳市清泉水系统工程设备有限公司 Reverse filtering air water back flushing filtering pond and reverse filtering air water back flushing method
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
CN103071323A (en) * 2013-01-15 2013-05-01 东莞市科达环保工程有限公司 Novel air-water backwashing method of filtering pond
CN203342474U (en) * 2013-05-20 2013-12-18 江苏恒博环境工程设备有限公司 Back-washing device
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
CN112386969A (en) * 2020-12-15 2021-02-23 福州海恒水务设备有限公司 Water filtering equipment and working method thereof

Also Published As

Publication number Publication date
CN112386969A (en) 2021-02-23

Similar Documents

Publication Publication Date Title
WO2022127011A1 (en) Water filtering equipment and working method thereof
CN102390887B (en) Flap aerated biological filter and wastewater treatment method thereof
WO2021109329A1 (en) Micro-water quantity backwashing variable-speed upward-flow lightweight-filtering-material filter, and method thereof
CN103071323A (en) Novel air-water backwashing method of filtering pond
CN109692508B (en) Gas-water back flushing system of sand filter
CN204411852U (en) A kind of backwashing pipeline filter
CN208526018U (en) A kind of glass reinforced plastic water purifier
CN214436793U (en) Water filtering equipment
CN210753175U (en) Peach gum raw material impurity separation device
CN209872600U (en) Backwashing water purifier
CN209646249U (en) Ultra-filtration membrane device
CN103182207B (en) Expandable filter tank adopting flexible soft elastic outer wall
CN217409928U (en) Backflushing filter tank
CN205815209U (en) A kind of quartz filter
CN210121361U (en) Layered filter bed capable of effectively improving filtering effect
CN113041673B (en) Water supply system for granule-equalizing filter material
CN215505766U (en) Automatic back-flushing filtering device
CN218572905U (en) Candle formula diatomaceous earth filter
CN211724872U (en) Back-flushing anti-blocking device of precision filter
CN220779169U (en) Quick filter tank with high sewage receiving capacity
CN108686423A (en) A kind of fiberglass water purifier
CN220736466U (en) Sewage filter capable of backwashing
CN219399180U (en) Hydraulic cleaning type filter
CN116443992B (en) Ultrafiltration membrane equipment
CN216170279U (en) Novel waste water filters device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21904950

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21904950

Country of ref document: EP

Kind code of ref document: A1