CN217119446U

CN217119446U - Double-speed long-handle filter head

Info

Publication number: CN217119446U
Application number: CN202122202680.3U
Authority: CN
Inventors: 翁绍真; 贺柏林; 何磊; 朱嘉祥; 刘方舟
Original assignee: Nanjing Zhongdian Environmental Protection Water Co ltd
Current assignee: Nanjing Zhongdian Environmental Protection Water Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-08-05
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a long handle filter head of double speed is a filter material and liquid separation device, mainly comprises upper end cover, screen pipe, perforated plate, movable cover, bottom end cover, packing ring, auto-lock nut, outlet pipe, air inlet bar hole etc. and the filter head that upper end cover, screen pipe, perforated plate, movable cover, bottom end cover are constituteed is the double-chamber structure. The utility model discloses a forward flow and backward flow velocity's uniformity is guaranteed in regulation, control of perforated plate and movable cover to ensure water distribution, backwash, aeration homogeneity.

Description

Double-speed long-handle filter head

Technical Field

The utility model discloses a two-speed long handle filter head is a filter material and liquid separation device, through regulation, the control of perforated plate and movable cover, guarantees the uniformity of forward flow and backward flow velocity of flow to ensure water distribution, backwash, aeration homogeneity.

Background

Water is a life source, is an important resource for human life, industrial and agricultural production and social and economic development, and with the acceleration of urbanization pace and the development of industrial economy in China, the demand of urban resident domestic water and industrial enterprise water is increasing day by day, and the requirements on water quality of water are also stricter day by day. However, China is a country with poor water resource per capita, and at present, part of water bodies lose original functions due to serious water pollution, so that the shortage of water resources is further aggravated. People can drink and use less and less water resources, so the water purification treatment process is particularly important in the current society. In order to more effectively purify unavailable water thoroughly, the uniformity of water distribution, backwashing and aeration of the filter is important.

The filter chamber is used as a core structure of the water purification treatment process of a water supply plant, and has the functions of filtering raw water by a filter material layer in the filter chamber, performing air-water back flushing, namely, enabling air generated by an air blower to enter an air-water chamber through air distribution holes on an air-water chamber distribution channel, and then enabling air to uniformly enter the filter chamber through a long-handle filter head, so that the vibration friction of the filter material causes impurities adhered to the surface of the filter material to fall off. Whether the aeration of the filter tank is uniform directly influences whether the air-water backwashing process is thorough or not, and if the aeration is not uniform, the air-water backwashing is not uniform, so that part of impurities exist in filter materials, the filter tank loses the filtering effect of the filter tank as time passes, and the whole water purification treatment system is paralyzed, so that the water distribution, backwashing and aeration uniformity of the filter tank are guaranteed to be one of the cores of the whole water purification treatment process.

The existing long-handle filter head directly combines and installs the filter cap and the filter rod, is relatively crude, and has a relatively simple equipment structure. The traditional filter cap often has the phenomena of uneven water distribution, water collection and aeration, bias flow, filter material leakage, insufficient filter material backwashing and the like, so that the quality of effluent water of an operating system is reduced, the operating period is shortened, and the continuous and stable operation of a subsequent system is seriously influenced.

Disclosure of Invention

In order to solve the problem, the utility model provides a double speed long handle filter head, make full use of filter cap head's structural advantage realizes the high separation of filter material and liquid to through filter head double-chamber formula structure, the outlet pipe bar pore structure's that admits air design has improved the performance of filter head.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a double-speed long-handle filter head comprises a sieve tube (2), wherein the upper end and the lower end of the sieve tube (2) are respectively provided with an upper end cover (1) and a lower end cover (5), and the lower end cover (5) is provided with a through hole communicated with a water outlet pipe (8); the water outlet pipe (8) is screwed into the filter plate reserved mounting piece; the sieve tube (2) is internally provided with a fixed perforated plate (3), the space in the sieve tube (2) is divided into an upper chamber and a lower chamber, a movable cover (4) capable of moving up and down is arranged above the perforated plate (3), and the movable cover (4) can cover holes in the perforated plate (3) when moving down to the perforated plate (3).

Further: and a self-locking nut (7) is arranged on the outer side of the water outlet pipe (8) and is used for fixing the double-speed long-handle filter head with the filter plate.

Further: and the water outlet pipe (8) is provided with an air inlet strip-shaped hole (9).

Further: air inlet strip hole (9) set up the bottom position of outlet pipe (8), circumference evenly sets up four air inlet strip holes (9).

Has the beneficial effects that: 1. the self-locking nut improves the convenience of filter head installation and greatly reduces the installation time of personnel;

2. the reasonable distribution of the air inlet strip-shaped holes ensures the uniformity of air inlet;

3. set up fixed perforated plate and adjustable movable cover in the filter head, under the great condition of filtration flow and backwash flow difference, through the regulation of movable cover, guarantee to have invariable velocity of flow under each running state, effectively avoid the flow not simultaneously because the limitation of filter head leads to the emergence of the circumstances such as bias current.

Drawings

FIG. 1: the structure of the double-speed long-handle filter head is schematic;

FIG. 2: a schematic diagram of the filtration state;

FIG. 3: a schematic diagram of the backwashing state;

reference numbers in the figures: 1: upper end cover, 2: sieve tube, 3: perforated plate, 4: movable cover, 5: lower end cap, 6: gasket, 7: self-locking nut, 8: water outlet pipe, 9: and air inlet strip-shaped holes.

Detailed Description

The device of the present invention will be further described with reference to the accompanying drawings.

As shown in figure 1, the double-speed long-handle filter head comprises an upper end cover 1, a sieve tube 2, a perforated plate 3, a movable cover 4, a lower end cover 5, a gasket 6, a self-locking nut 7, a water outlet pipe 8 and an air inlet strip-shaped hole 9. The upper end and the lower end of the sieve tube 2 are respectively provided with an upper end cover 1 and a lower end cover 5, and the lower end cover 5 is provided with a through hole communicated with a water outlet pipe 8; the water outlet pipe 8 is screwed into the reserved mounting piece of the filter plate; the screen pipe 2 is internally provided with a fixed perforated plate 3, the space in the screen pipe 2 is divided into an upper chamber and a lower chamber, a movable cover 4 capable of moving up and down is arranged above the perforated plate 3, and the movable cover 4 can cover holes in the perforated plate 3 when moving down to the perforated plate 3. A vertical rod can be arranged between the upper end cover 1 and the porous plate 3, a through hole is formed in the movable cover 4 and penetrates through the vertical rod, and the movable cover 4 can move up and down along the vertical rod.

The utility model discloses a concrete implementation method:

the water outlet pipe 8 is screwed into the reserved mounting part of the filter plate, and the double-speed long-handle filter head is fixed with the filter plate through the self-locking nut 7.

As shown in figure 2, when the filter chamber filters, water flow is from top to bottom, the movable cover 4 is pressed on the porous plate 3 by the water flow, so that the water flow cannot pass through the upper part of the filter head, and the water flow enters the water outlet pipe 8 through the sieve pipe at the lower part of the filter head and is distributed to the water collecting tank through the water outlet pipe 8.

As shown in figure 3, when the filter is backwashed, water flow enters the filter head through the water outlet pipe 8, air flow enters the filter head through the air inlet strip-shaped holes 9, the movable cover 4 is jacked to the upper end cover 1 due to the action of water/air flow, part of water/air mixture enters the filter through the sieve pipe at the lower part of the filter head, and part of water/air mixture enters the filter through the porous plate 3 and the sieve pipe at the upper part.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A dual-speed long-handle filter head is characterized in that: the sieve tube comprises a sieve tube (2), wherein the upper end and the lower end of the sieve tube (2) are respectively provided with an upper end cover (1) and a lower end cover (5), and the lower end cover (5) is provided with a through hole communicated with a water outlet pipe (8); the water outlet pipe (8) is screwed into the filter plate reserved mounting piece; the sieve tube (2) is internally provided with a fixed perforated plate (3), the space in the sieve tube (2) is divided into an upper chamber and a lower chamber, a movable cover (4) capable of moving up and down is arranged above the perforated plate (3), and the movable cover (4) can cover holes in the perforated plate (3) when moving down to the perforated plate (3).

2. A two-speed long handle filter head as in claim 1 wherein: and a self-locking nut (7) is arranged on the outer side of the water outlet pipe (8) and is used for fixing the double-speed long-handle filter head with the filter plate.

3. A two-speed long handle filter head as in claim 1 wherein: and the water outlet pipe (8) is provided with an air inlet strip-shaped hole (9).

4. A two-speed long handle filter head as in claim 3 wherein: air inlet strip hole (9) set up the bottom position of outlet pipe (8), circumference evenly sets up four air inlet strip holes (9).