CN220589168U - Hydraulic back flushing water filter - Google Patents

Hydraulic back flushing water filter Download PDF

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Publication number
CN220589168U
CN220589168U CN202321987924.6U CN202321987924U CN220589168U CN 220589168 U CN220589168 U CN 220589168U CN 202321987924 U CN202321987924 U CN 202321987924U CN 220589168 U CN220589168 U CN 220589168U
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Prior art keywords
water
filter
tank body
driving assembly
filter cylinder
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CN202321987924.6U
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Chinese (zh)
Inventor
郑秀发
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Hunan Xiangtou Tongwan Water Conservancy And Hydropower Development Co ltd
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Hunan Xiangtou Tongwan Water Conservancy And Hydropower Development Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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Abstract

The utility model belongs to the field of water filtration, and discloses a hydraulic back flushing water filter, which is arranged at the water inlet end of a water pump and comprises a tank body, a tank cover arranged at the top of the tank body and a filter cylinder arranged in the tank body; the bottom of the tank body is provided with a sewage outlet connected with the sewage outlet, the side wall of the tank body is provided with a water inlet connected with a water inlet pipe, and a water outlet connected with a water outlet pipe is arranged above the water inlet; the filter cylinder for isolating the water inlet and the water outlet is rotatably arranged in the tank body, and the top of the filter cylinder is connected with a water wheel driving assembly arranged on the tank cover; the water source of the water wheel driving assembly is taken from a drain pipe of another water filter, the water outlet of the water wheel driving assembly is connected with a flushing pipe arranged in the tank body, and the flushing pipe is arranged at the outer side of the filter cylinder. The water filter is arranged at the water inlet end of the water pump, so that the water pump can be effectively protected, and simultaneously, backwash water for the water filter uses the water pump of the other water filter as power to backwash, so that the problem of insufficient backwash power is solved, and the filter cylinder is driven by the water wheel driving assembly, so that the water pump has the advantages of low cost, energy conservation and environmental protection.

Description

Hydraulic back flushing water filter
Technical Field
The utility model relates to the field of water filtration, in particular to a hydraulic back flushing water filter.
Background
The power station generator adopts a primary cooling mode, cooling water adopts a mode of taking water in front of a dam and pressurizing a water pump, and a plurality of water intake ports are generally utilized for synchronously taking water, and each water intake port is used for pumping the filtered water into a water supply main pipe. For low-head power stations, the water supply water intake is limited in water surface, scum in front of the dam is gathered on the water surface of the dam section of the water inlet in a sheet mode, a small amount of scum is soaked for a long time to sink into the water bottom, and a part of scum is semi-floating and semi-sinking to various depths, so that sundries and small shells growing nearby can enter the water supply pipeline from the water intake more easily.
At present, most hydropower stations adopt rotary water filters driven by a motor, the motor is arranged at the top of the water filter, and a more common structure is a fork-tube pollution discharge multi-cartridge water filter (for example, chinese patent publication No. CN201821223847.6, a disclosed back flush full-automatic water filter), because the water filter is designed in the structure, a filter screen needs to be discharged one by one, the pollution discharge efficiency is low, and meanwhile, some shell impurities are sunk into the bottom of a shell and cannot be discharged, so that the water filter is always blocked, a top motor, a speed reducer, an upper end cover of a water filter body, a rotating shaft, a bearing and a rotating arm are required to be disassembled after the blockage, the filter screen is taken out for manual cleaning, and the water pump slag removal and the water filter cleaning work consume much manpower and material resources, so that the emergency shutdown and the rush repair of a generator set are also caused to be responsible for water discharge when the situation is serious in flood season, and the safe and stable operation of the generator set is affected; in addition, with motor drive, a high-power motor and a power source need to be configured, which is costly and does not save energy.
Moreover, the water filter is arranged behind the water outlet of the water pump (back flushing is needed by using the pressure provided by the water pump), the water pump cannot be protected, and impurities such as small shells, pasture, branches, plastic household garbage and the like entering from the water intake in front of a dam firstly enter the water pump along the water intake pipe along with water flow, so that the water pump is blocked, and the water pump is often required to be detached for slag removal in the flood season; in addition, some hard small fragment impurities such as shells enter the gap between the water pump impeller and the lining ring, so that the abrasion of the water pump impeller is aggravated, the gap between the water pump impeller and the lining ring is enlarged, the service life of the water pump is greatly reduced, and the cost for replacing a new water pump in advance is increased.
Disclosure of Invention
The utility model aims to solve the technical problems existing in the prior art. To this end, the present utility model provides a hydraulic backwash water filter.
The technical scheme adopted for solving the technical problems is as follows:
the hydraulic backwashing water filter comprises a tank body, a tank cover arranged at the top of the tank body and a filter cylinder arranged in the tank body, wherein the tank cover is arranged at the top of the tank body; the bottom of the tank body is provided with a connecting sewage outlet, the side wall of the tank body is provided with a water inlet connected with a water inlet pipe, and a water outlet connected with a water drain pipe is arranged above the water inlet; the filter cylinder for isolating the water inlet and the water outlet is rotatably arranged in the tank body, and the top of the filter cylinder is connected with a water wheel driving assembly arranged on the tank cover; the water source of the water wheel driving assembly is taken from a drain pipe of another water filter, the water outlet of the water wheel driving assembly is connected with a flushing pipe arranged in the tank body, and the flushing pipe is arranged at the outer side of the filter cylinder.
In a preferred embodiment of the present utility model, the water wheel drive assembly includes a volute and a water wheel shaft disposed within the volute.
In a preferred embodiment of the utility model, a flange is arranged between the water inlet and the water outlet of the tank body, and a sealing ring which is rotationally sealed with the flange is arranged at the bottom of the filter cylinder.
In a preferred embodiment of the utility model, a bearing ring is arranged outside the filter cylinder, and a plurality of balls in rolling connection with the flange are arranged at the bottom of the bearing ring.
In a preferred embodiment of the utility model, a connecting shaft is arranged at the top of the filter cartridge, a connecting sleeve is arranged on the connecting shaft, and a key groove meshed with a spline at the bottom of the water wheel shaft is arranged in the connecting sleeve.
In a preferred embodiment of the utility model, the side of the flushing pipe facing the side wall of the filter cartridge is provided with a plurality of spray heads.
In a preferred embodiment of the utility model, a drain valve is arranged on the drain outlet, and a flushing valve is arranged at the water inlet end of the water wheel driving assembly.
Compared with the prior art, the utility model has the beneficial effects that:
1. the water filter is arranged at the water inlet end of the water pump, so that the water pump can be effectively protected, the abrasion of the water pump is reduced, simultaneously, backwash water for the water filter is taken from the water outlet of the other water filter, and the water pump of the other water filter can be used as power for backwash, thereby solving the problem of insufficient backwash power, and the single filter cylinder is adopted for filtration, so that the backwash efficiency is high;
2. the filter cylinder is driven by the water wheel driving assembly, the kinetic energy of the back flushing water is utilized to drive the water wheel shaft to rotate, and the filter cylinder is further driven to rotate, so that the surface of the filter cylinder is flushed, and compared with the traditional filter cylinder driven by a motor, the filter cylinder has the advantages of low cost, energy conservation and environmental protection;
3. the drain is arranged at the bottom of the tank body, so that impurities in the filter cylinder and settled impurities can be completely discharged, and the problem of blockage cannot occur.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a block diagram of a water intake end of a power station generator provided by the utility model;
FIG. 2 is a schematic view of the hydraulic backwash water filter provided in FIG. 1;
fig. 3 is a top view of the paddlewheel drive assembly provided in fig. 2.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
The embodiment provides a hydraulic back flushing water filter 1, as shown in fig. 1, which is arranged at the water inlet end of a water pump 2, so that the water pump can be effectively protected by design, and the abrasion of the water pump is reduced. In order to solve the problem of the back flushing power of the water filter, in the embodiment, the back flushing water of the water filter is taken from the drain pipe of the other water filter, and the water pump of the other water filter can be used as power for back flushing, so that the problem of insufficient back flushing power is solved. Preferably, the water filter of the present embodiment is designed as follows:
as shown in fig. 2, the water filter 1 includes a tank body 1.1, a tank cover 1.2 disposed at the top of the tank body, a filter cartridge 1.3 disposed in the tank body, a water wheel driving assembly 1.4 for driving the filter cartridge to rotate, and a flushing pipe 1.5, wherein:
the bottom of the tank body 1.1 is provided with a connecting drain outlet 1.1.0, the drain outlet is arranged at the bottom of the tank body, impurities in the filter cartridge and settled impurities can be completely discharged, the problem of blockage cannot occur, the side wall of the tank body is provided with a water inlet 1.1.1 connected with a water inlet pipe, and a water outlet 1.1.2 connected with a water outlet pipe is arranged above the water inlet; the filter cartridge 1.3 for isolating the water inlet and the water outlet is rotatably arranged in the tank body 1.1, the top of the filter cartridge 1.3 is connected with a water wheel driving assembly 1.4 arranged on the tank cover 1.2, and the water wheel driving assembly is used for driving the filter cartridge to rotate; the water source of the water wheel driving assembly 1.4 is taken from a drain pipe of another water filter, a water outlet of the water wheel driving assembly is connected with a flushing pipe 1.5 arranged in the tank body 1.1, and the flushing pipe 1.5 is arranged at the outer side of the filter cylinder 1.3. The section of thick bamboo of this embodiment passes through the drive of water wheel drive assembly, utilizes the kinetic energy drive water wheel axle of backwash water to rotate, and then drives and strain the rotation of section of thick bamboo, washes its filtering face through locating the outer wash pipe of straining the section of thick bamboo, and single section of thick bamboo cleaning efficiency is high, and has with low costs, energy-concerving and environment-protective advantage in traditional through motor drive section of thick bamboo.
Preferably, as shown in fig. 3, the water wheel driving assembly 1.4 includes a volute 1.4.1 and a water wheel shaft 1.4.2 disposed in the volute, and the impeller of the water wheel shaft is flushed with backwash water to drive the water wheel shaft to rotate, so as to drive the filter cartridge to rotate.
Preferably, one surface of the flushing pipe 1.5 facing the side wall of the filter cartridge is provided with a plurality of spray heads 1.5.1 for spraying water to flush the filtering surface of the filter cartridge.
Preferably, a drain valve 3 is arranged on the drain outlet 1.1.0, and a flushing valve 4 is arranged at the water inlet end of the water wheel driving assembly 1.4.
The specific implementation method comprises the following steps: under the normal filtering state, the drain valve and the flushing valve are closed, the water pump is started, the drain valve 5 (arranged at the water outlet of the filter cartridge) is opened, and the water is filtered normally. When the operation is carried out for a set time, back flushing operation is needed, and impurities are discharged; under the back flushing state, the drain valve and the flushing valve are opened, the water pump is closed, the drain valve is closed, the water wheel driving component is driven by the drainage of the other water filter to drive the filter cylinder to rotate, the filter cylinder is sprayed with water to be flushed through the spray head on the flushing pipe, and after the flushing time reaches the set time, the drain valve and the flushing valve are closed, and the normal filtering state is switched.
In this embodiment, the drain valve 3, the flushing valve 4 and the drain valve 5 may be electric valves, and each valve and the water pump may be controlled by a PLC controller.
Example two
On the basis of the first embodiment, the design of the rotary installation structure of the filter cartridge is performed in this embodiment, as shown in fig. 2, a flange 1.1.3 is disposed between the water inlet 1.1.1 and the water outlet 1.1.2 of the tank body 1.1, a sealing ring 6 which is rotationally sealed with the flange 1.1.3 is disposed at the bottom of the filter cartridge 1.3, and is used for sealing the filter cartridge from the flange, so that the isolation of the water inlet and the water outlet is realized, and the water can enter the water outlet only by filtering of the filter cartridge.
Preferably, a bearing ring 1.3.1 is arranged outside the filter cartridge 1.3, and a plurality of balls 1.3.2 in rolling connection with the flange 1.1.3 are arranged at the bottom of the bearing ring 1.3.1. The filter cartridge in this embodiment is rotatably connected to the flange by a receiving ring, the receiving ring being capable of bearing the weight of the filter cartridge, and the balls being capable of reducing the friction between the filter cartridge and the flange.
Preferably, a connecting shaft 1.3.3 is arranged at the top of the filter cartridge 1.3, a connecting sleeve 1.3.4 is arranged on the connecting shaft 1.3.3, and a key slot meshed with a spline at the bottom of the water wheel shaft 1.4.2 is arranged in the connecting sleeve 1.3.4. In this embodiment, the cartridge is connected to the water wheel shaft in a separated manner, and when the water filter is maintained, the tank cover (the connection between the separated water wheel driving assembly and the pipeline) is opened, so that the water wheel shaft and the cartridge are separated, and the cartridge is not carried out.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.

Claims (7)

1. A hydraulic back flushing water filter comprises a tank body, a tank cover arranged at the top of the tank body and a filter cylinder arranged in the tank body; the method is characterized in that:
the water filter is arranged at the water inlet end of the water pump;
the bottom of the tank body is provided with a connecting sewage outlet, the side wall of the tank body is provided with a water inlet connected with a water inlet pipe, and a water outlet connected with a water drain pipe is arranged above the water inlet;
the filter cylinder for isolating the water inlet and the water outlet is rotatably arranged in the tank body, and the top of the filter cylinder is connected with a water wheel driving assembly arranged on the tank cover;
the water source of the water wheel driving assembly is taken from a drain pipe of another water filter, the water outlet of the water wheel driving assembly is connected with a flushing pipe arranged in the tank body, and the flushing pipe is arranged at the outer side of the filter cylinder.
2. A hydraulic backwash water filter as defined in claim 1 wherein: the water wheel driving assembly comprises a volute and a water wheel shaft arranged in the volute.
3. A hydraulic backwash water filter as defined in claim 2 wherein: a flange is arranged between the water inlet and the water outlet of the tank body, and a sealing ring which is rotationally sealed with the flange is arranged at the bottom of the filter cylinder.
4. A hydraulic backwash water filter as defined in claim 3 wherein: the filter cartridge is provided with a bearing ring outside, and the bottom of the bearing ring is provided with a plurality of balls in rolling connection with the flange.
5. A hydraulic backwash water filter as defined in claim 4 wherein: the top of the filter cylinder is provided with a connecting shaft, the connecting shaft is provided with a connecting sleeve, and a key slot meshed with a spline at the bottom of the water wheel shaft is arranged in the connecting sleeve.
6. A hydraulic backwash water filter as defined in claim 1 wherein: and one surface of the flushing pipe, which faces the side wall of the filter cylinder, is provided with a plurality of spray heads.
7. A hydraulic backwash water filter as defined in claim 1 wherein: and a drain valve is arranged on the drain outlet, and a flushing valve is arranged at the water inlet end of the water wheel driving assembly.
CN202321987924.6U 2023-07-27 2023-07-27 Hydraulic back flushing water filter Active CN220589168U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321987924.6U CN220589168U (en) 2023-07-27 2023-07-27 Hydraulic back flushing water filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321987924.6U CN220589168U (en) 2023-07-27 2023-07-27 Hydraulic back flushing water filter

Publications (1)

Publication Number Publication Date
CN220589168U true CN220589168U (en) 2024-03-15

Family

ID=90180172

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321987924.6U Active CN220589168U (en) 2023-07-27 2023-07-27 Hydraulic back flushing water filter

Country Status (1)

Country Link
CN (1) CN220589168U (en)

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