CN203648255U - Centrifugal filter-screen type sediment filtering device - Google Patents

Abstract

The utility model relates to the technical field of irrigation in agricultural water and soil engineering, in particular to a centrifugal filter screen type sediment filter device. A centrifugal filter screen type sediment filtering device, including a water inlet device and a water outlet device, its main feature is that it also includes a sediment filtering device between the water inlet device and the water outlet device; the sediment filtering device includes The inside of the tank shell is provided with an inner tank, the upper part of the inner tank is in the shape of a truncated cone, and the lower part is hemispherical; the upper part of the truncated cone is provided with a water outlet of the inner tank, and a coarse filter is set on the water outlet, and the diversion cover is connected through a bracket , the diversion cover is fixedly connected with the tank shell, and a fine filter is arranged on it; the lower part of the truncated cone is fixedly connected with the tank shell; the lower part of the inner tank is provided with a sand collection tank, and a sand discharge outlet is provided on the sand collection tank , There is a sand discharge switch on the sand discharge outlet. The sand discharge switch can discharge the deposited sediment out of the tank in time. The utility model has the advantages that the sediment-laden water flows through the first-stage sedimentation and then is centrifuged and combined with the coarse and fine filter screens for two-stage filtration, which improves the filtration efficiency, and has a simple structure and low cost; the sediment on the fine filter screen can be backwashed It acts on the outlet of backwashing silt to discharge it, and the coarse filter silt can be discharged through the sand discharge switch on the sand collection tank. The device is easy to operate without dismantling the filter body.

Description

Centrifugal filter type sediment filter device

Technical field:

The utility model relates to the technical field of irrigation in agricultural water and soil engineering, in particular to a centrifugal filter screen type sediment filter device.

Background technique:

At present, with the development of science, economy and technology, industrial and agricultural production, population and ecological water consumption continue to increase, and agricultural water accounts for most of it, and then water-saving agriculture develops rapidly, accompanied by water-saving irrigation methods such as micro-sprinkler irrigation and infiltration irrigation. As a result, these irrigation methods all have higher requirements on water quality, and water sources generally contain more sediment. Therefore, efficient, safe and reliable sediment filtration equipment has become an important part of it. However, in some existing centrifugal sediment filter equipment, the location of the water inlet pipe and the setting of the filter screen are not reasonable enough. The sediment particles and water flow with large kinetic energy will directly impact the filter screen, resulting in deformation of the filter screen, etc., resulting in poor filtering effect. Moreover, the setting of the sedimentation tank is not conducive to the rapid discharge of the sediment; some filtering equipment has a complex structure and a large volume, which is not conducive to popularization and use. Therefore, the utility model designs a kind of compact in structure, and cost is lower, and the centrifuge filter screen formula sediment filtering device of centrifugal and coarse, fine filter screen two-stage combined filtration after one-stage sedimentation is of great significance.

Invention content:

The purpose of the utility model is to avoid the deficiencies of the prior art and provide a centrifugal filter type sediment filter device. To solve the shortcomings of the prior art, such as low sand filtration efficiency, complex structure, large volume, and high cost, a sand filtration device with high efficiency, simple structure, and a combination of centrifugal and filter screen is proposed.

The purpose of this utility model can be achieved by adopting the following technical solutions: a centrifugal filter type sediment filter device, including a water inlet device, a water outlet device, and its main feature is that it also includes a water inlet device and a water outlet device. A sediment filter device is provided; the sediment filter device includes an inner tank inside the tank shell, the upper part of the inner tank is in the shape of a truncated cone, and the lower part is hemispherical; the upper part of the truncated cone is provided with an inner tank outlet, A coarse filter is set on the water outlet, and the diversion cover is connected through a bracket. The diversion cover is fixedly connected with the tank shell, and a fine filter is arranged on it; the lower part of the circular frustum is fixedly connected with the tank shell; The sand collection tank is provided with a sand discharge outlet on the sand collection tank, and a sand discharge switch is provided on the sand discharge outlet. The sand discharge switch can discharge the deposited sediment out of the tank in time.

In the centrifugal filter type sediment filtering device, the water inlet device includes a sediment sedimentation tank in front of the water inlet pipe, a water inlet switch, a check valve and an interface flange on the water inlet pipe .

In the centrifugal filter type sediment filtering device, the water outlet device includes an interface flange on the outlet pipe, a water outlet switch, a flow meter and a vent valve.

The centrifugal filter type sediment filtering device also includes a pressure gauge on the tank shell; the tank shell of the sediment filtering device is provided with a backwashing sediment outlet, which can be used during backwashing. Discharge the filter screen and the sediment deposited on the outside of the inner tank out of the pipe. There is an observation window on the sand collection tank.

The centrifugal filter-type sediment filtering device also includes that the sand collection tank is an ellipsoid, which is beneficial to the deposition of sediment, and has an observation window for observing the deposition of sediment.

The beneficial effects of the utility model are: the centrifugal filter type sediment filter device has high sediment filtration efficiency and simple structure; To discharge it, the coarse filter silt can be discharged through the sand discharge switch on the sand collection tank, which is easy to operate and does not need to disassemble the filter device body; the check valve of the water inlet pipe can effectively prevent the tank from being sucked back due to shutting off the water source of water and sediment. The pressure gauge set on the outer tank, the flow meter and the vent valve set on the outlet pipe ensure the reliability and safety of the device body operation. Therefore, the utility model can be widely used in water-saving irrigation agriculture.

Description of drawings:

Fig. 1 is a structural representation of the utility model centrifugal filter type sediment filtering device;

Fig. 2 is the left side view of the centrifugal filter type sediment filtering device of the present invention;

Fig. 3 is a structural schematic diagram of a diversion cover and a fine filter screen of the centrifugal filter type sediment filter device of the present invention.

In the figure: 1. tank shell, 2. fine filter screen, 3. diversion cover, 4. inner tank body, 5. sediment outlet, 6. observation window, 7. sand collection tank, 8. sand discharge switch, 9. Flange, 10. Check valve, 11. Water inlet pipe, 12. Water inlet switch, 13. Pressure gauge, 14. Water outlet pipe, 15. Water outlet switch, 16. Flow meter, 17. Ventilation valve, 18. Support, 19. coarse strainer, 20. sedimentation tank, 21. inner tank body water outlet.

Detailed ways:

Below in conjunction with the preferred embodiment shown in accompanying drawing, be described in further detail:

Embodiment 1: see Fig. 1, Fig. 2, Fig. 3, a kind of centrifugal strainer type silt filtering device, comprises water inlet device, water outlet device, is provided with silt filter device between water inlet device, water outlet device; The sediment filtering device includes an inner tank body 4 inside the tank shell 1, the upper part of the inner tank body 4 is in the shape of a truncated cone, and the lower part is hemispherical; Coarse filter screen 19 is set, and diversion cover 3 is connected by bracket 18, and diversion cover 3 is fixedly connected with tank shell 1, and fine filter screen 2 is arranged on it; The lower part of the body 4 is provided with a sand collection tank 7, and a sand discharge outlet is provided on the sand collection tank 7, and a sand discharge switch 8 is provided on the sand discharge outlet. The sand discharge switch 8 can discharge the deposited silt out of the tank in time.

The water inlet device includes a sedimentation tank 20 in front of the water inlet pipe 11, a water inlet switch 12, a check valve 10 and an interface flange 9 on the water inlet pipe 11.

The water outlet device includes an outlet flange 9 on the outlet pipe 14 , a water outlet switch 15 , a flow meter 16 and a vent valve 17 .

The tank shell 1 is provided with a pressure gauge 13; the tank shell 1 of the sediment filter device is provided with a backwashing sediment outlet 5, which can filter the filter screen and deposit it in the inner tank during backwashing. The sediment outside the body is discharged. An observation window 6 is provided on the sand collecting tank 7 .

It also includes that the sand collection tank 7 is an ellipsoid, which is beneficial to the deposition of sand, and contains an observation window 6, so that the deposition of sand can be observed.

When the utility model works, when the water flow containing silt first enters the silt sedimentation tank 20, the large particles of silt in the water will be deposited, and after the water flow continues to enter the water inlet pipe 11, most of the silt in the water will be under the action of centrifugal force. Deposited in the sand collection tank, the water flow containing part of the sediment slowly flows upward through the coarse filter to filter part of the sediment, while the diversion cover rapidly expands the water flow area, the sediment settles further, and a small part of the sediment passes through the fine filter The net filters it out and the water flows out through the outlet.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. a centrifugal filter formula silt filtering apparatus, includes water feed apparatus, and discharging device characterized by further comprising between water feed apparatus, discharging device and has been provided with silt filtering apparatus; Silt filtering apparatus includes in the inside of tank body shell and is provided with interior tank body, and interior tank body top is truncated cone-shaped, and bottom is hemispherical; The top of truncated cone-shaped is provided with interior tank body delivery port, and coarse strainer is set on delivery port, connects fairing cap by support, and fairing cap and tank body shell are connected, and which is provided with fie screen; The bottom of truncated cone-shaped and tank body shell are connected; Interior tank body lower part is provided with the husky tank of collection, is provided with sand discharge outlet on the husky tank of collection, in sand discharge outlet, is provided with sand discharge switch.

2. centrifugal filter formula silt filtering apparatus as claimed in claim 1, the water feed apparatus described in it is characterized in that includes and before inlet channel, is provided with sedimentation pond, is provided with water inlet switch, non-return valve and flange on inlet channel.

3. centrifugal filter formula silt filtering apparatus as claimed in claim 1, the discharging device described in it is characterized in that includes and on outlet conduit, is provided with flange, effluent switch, flowmeter and breather valve.

4. centrifugal filter formula silt filtering apparatus as claimed in claim 1, characterized by further comprising on tank body shell and has been provided with Pressure gauge; The tank body shell of described silt filtering apparatus is provided with the outlet of backwash silt; On the husky tank of collection, be provided with observation window.

5. centrifugal filter formula silt filtering apparatus as claimed in claim 1, characterized by further comprising and described integrate husky tank as spheroid.

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