CN201042644Y

CN201042644Y - Automatic back flush filter

Info

Publication number: CN201042644Y
Application number: CNU2007200227966U
Authority: CN
Inventors: 张小强; 王现勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-05
Filing date: 2007-06-05
Publication date: 2008-04-02
Anticipated expiration: 2017-06-05

Abstract

The utility model discloses an automatic backwash filter belonging to the field of water filtering purifiers, more particularly a water filtering purifier with a back-washing device. The automatic backwash filter comprises a filter shell formed by an upper flange, a lower flange, an upper end cover, a cylinder and a lower end cover; and a water inlet, a water outlet and a drainage port all arranged on the filter shell. The utility model is characterized in that a motor and a reducer are arranged on the top of the upper end cover and connected with a central shaft, a flushing water inlet pipe and an upper seal cover are fixed at the top end of the central shaft and communicated with a high-pressure flushing water inlet, a flushing water outlet pipe and a lower seal cover are fixed at the bottom end of the central shaft and communicated with a flushing water drainage port, filter assemblies are arranged circumferentially between an upper partition and a lower partition respectively at two ends of the cylinder, and the filter assembly comprises a primary filter screen, a filtering medium, a fine filter screen, and a cylindrical shell. The backwash filter, provided in this utility model, can operate continuously and, if necessary, automatically flush the filter assembly.

Description

Automatic backwashing filter

Technical field

The utility model belongs to the water filtration cleaning equipment, particularly has the water filtration cleaning equipment of backwash equipment.

Background technology

The water that has impurity is needed to adopt filter to filter before being sent to water system, and CN2508833 discloses a kind of automatic backwash accurate filter.It is the filter that a kind of pressure that utilizes self carries out the filter core backwash automatically.It is reasonable in design, compact conformation, and sealing is reliable, steady quality, the filtering accuracy height is crossed logical area than big, and the backwash flow is few, and cost is lower, and is energy-conservation attractive in appearance.Especially the essence that is suitable for various liquid is filtered, and is the extremely wide high-tech energy-conserving and environment-protective product of a kind of range of application.Import substitutes can be matched in excellence or beauty with the foreign same type product.This product is imported and exported and be can be 0 °-360 ° multiple arrangement.Filter core also can be the single row or multiple rows circumference uniform distribution.But when washing operation, need stop filtration operation, can not produce continuously.

The utility model content

The purpose of this utility model provides a kind of technical scheme of automatically filter screen and filtrate being carried out the novel filter plant of backwash in continuous filtration.

The technical solution of the utility model is, a kind of automatic backwashing filter, comprise, by upper flange, lower flange, the upper cover that connects, tank body, on the filter housing that low head is formed water inlet is housed, delivery port, sewage draining exit, it is characterized in that: motor and speed reducer is equipped with at the upper cover top, connecting central shaft, described central shaft upper end is being fixed flushing water water inlet pipe and upper cover and is being communicated with the high-pressure washing water water inlet, flushing water outlet pipe and following capping are being fixed in the lower end, and communicate with the flushing water sewage draining exit and to be positioned at the tank body two ends and to get upper spacer, filter assemblies by circumferential arrangement is housed between the lower clapboard, and described filter assemblies is by coarse strainer, filtrate, accurate filter screen and cylindrical housing are formed.

Water pressure sensor all is housed on described water inlet and the delivery port.

The power switch of described motor adopts contrary the connection synchronously with flushing water high-pressure hydraulic pump switch.

The filter assemblies of the disclosed automatic backwashing filter of the utility model is according to circumferential arrangement, managing the capping up and down that is connected with the flushing water turnover can be sealed at both ends with filter assemblies successively when motor rotates, under the effect of high-pressure washing water, the filtrate in the assembly is carried out backwash, other assemblies still normally carry out filtration operation, thereby guaranteed the long-time continuous filtration, owing on water inlet and the delivery port water pressure sensor is housed all, when two pressure sensor pressure reduction when setting numerical value, the beginning backwash, because electric power switch and flushing water high-pressure hydraulic pump switch adopt contrary connected mode synchronously, the high-pressure hydraulic pump power supply disconnects and stops to supply water when electrical power, electric motor starting once rotates a circle, reductor drive the flushing water water inlet pipe and water outlet pipe and up and down capping turn to adjacent filter assemblies two ends by filter assemblies two ends, filter assemblies is sealed at both ends, motor power is closed, and the high-pressure hydraulic pump power connection begins to wash operation.So circulation stops backwash when two sensors pressure reduction motor, high-pressure hydraulic pump when setting value cut off the power supply simultaneously.

The backwash filter that the utility model provides can be worked continuously and automatically filter assemblies be washed as required.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model,

Among the figure, 1. low head, 2. water inlet, 3. lower flange, 4. tank body, 5. upper flange, 6. upper cover, 7. upper spacer, 8. go up sealing ring, 9. motor and speed reducer, 10. high-pressure washing water water inlet, 11. delivery ports, 12. the flushing water water inlet pipe, 13 centre of punch axles, 14. upper covers, 15. accurate filter screens, 16. filtrate, 17. coarse strainers, 18. lower clapboards, 19. times cappings, 20. the flushing water outlet pipe, 21. sewage draining exits, 22. lower seal, 23. flushing sewage water discharge mouths.

The specific embodiment

The specific embodiment of the present utility model is, as shown in the figure:

Embodiment 1, a kind of automatic backwashing filter, comprise, by upper flange 5, lower flange 3, the upper cover 6 that connects, tank body 4, on the filter housing that low head 1 is formed water inlet 2 is housed, delivery port 11, sewage draining exit 21, it is characterized in that: motor and speed reducer 9 is equipped with at the upper cover top, connecting central shaft 13, described central shaft upper end is being fixed flushing water water inlet pipe 12 and upper cover 14 and is being communicated with high-pressure washing water water inlet 10, flushing water outlet pipe 20 and following capping 19 are being fixed in the lower end, and communicate with flushing water sewage draining exit 23 and to be positioned at the tank body two ends and to get upper spacer, filter assemblies by circumferential arrangement is housed between the lower clapboard, and described filter assemblies is by coarse strainer 17, filtrate 16, accurate filter screen 15 and cylindrical housing are formed.Water pressure sensor all is housed on described water inlet and the delivery port.The power switch of described motor adopts contrary the connection synchronously with flushing water high-pressure hydraulic pump switch.

Claims

1. automatic backwashing filter, comprise, by upper flange, lower flange, the upper cover that connects, tank body, on the filter housing that low head is formed water inlet is housed, delivery port, sewage draining exit, it is characterized in that: motor and speed reducer is equipped with at the upper cover top, connecting central shaft, described central shaft upper end is being fixed flushing water water inlet pipe and upper cover and is being communicated with the high-pressure washing water water inlet, flushing water outlet pipe and following capping are being fixed in the lower end, and communicate with the flushing water sewage draining exit and to be positioned at the tank body two ends and to get upper spacer, filter assemblies by circumferential arrangement is housed between the lower clapboard, and described filter assemblies is by coarse strainer, filtrate, accurate filter screen and cylindrical housing are formed.

2. according to the determined automatic backwashing filter of claim 1, it is characterized in that: water pressure sensor all is housed on described water inlet and the delivery port.

3. according to the determined automatic backwashing filter of claim 1, it is characterized in that: the power switch of described motor adopts contrary the connection synchronously with flushing water high-pressure hydraulic pump switch.