CN212914720U - Backwashing device of filter - Google Patents

Abstract

The utility model relates to a filter back flush technical field specifically discloses a back washing unit of filter. Including the filter tube, the filter tube top is equipped with reserve mouth, reserve mouth department is equipped with the detachable top cap, filter tube one side is equipped with the inlet tube, the opposite side is equipped with the outlet pipe, inlet tube and outlet pipe department all are equipped with the manometer, be equipped with basket filter screen in the filter tube, one side that basket filter screen is close to the inlet tube is less than the mouth of pipe of inlet tube, one side that basket filter screen is close to the outlet pipe is higher than the mouth of pipe of outlet pipe, the filter tube bottom is equipped with the slag notch, basket filter screen bottom is equipped with a plurality of openings towards the relief valve of slag notch, slag notch department flange joint has the valve, valve one side is equipped with the switch that is used for control flap. Aim at solves traditional basket filter and washs problem consuming time and difficultly.

Description

Backwashing device of filter

Technical Field

The utility model relates to a filter back flush technical field specifically discloses a back washing unit of filter.

Background

Some enterprises which utilize Yangtze river water as a refrigerating motive power extract continuous Yangtze river water, and can provide refrigeration for a certain area through a series of operations, so that the requirements of sustainable development strategies are met, but the Yangtze river water has certain characteristics, for example, the Yangtze river water is too turbulent and turbid due to frequent rainstorm in summer, silt garbage is deposited and turbid in the high turbid period of summer, the turbid river water enters a use flow, and then gravel garbage blocks a refrigerating host machine, the host machine is damaged, and the operation is greatly influenced, so that the turbid river water is usually filtered by some filtering means, and in the filtering process, a water taking head grating usually blocks large garbage in the river water; the basket filter is arranged at the outlet of the water pump, the mesh size is 5mm, and the basket filter is mainly used for filtering garbage, branches, small pebbles and the like in the pumped river water; the full-automatic back-washing filter has the filtering precision of 500um and 800um and is mainly used for filtering the silt in the river water after passing through the basket filter on line; the Y-shaped filter is arranged at the inlet of the unit and mainly used for filtering the impurities filtered by the front 3 stages.

During the filtration process, the basket filter is often clogged, affecting the water intake, at which point the basket filter needs to be cleaned. Before the original basket type filter is cleaned, related host machines and water pump equipment need to be shut down firstly, and river water in the filter is emptied. Then dozens of bolts at the top are firstly removed, the filter screen is lifted out by a crane and placed on an operation platform, sundries in the filter screen are manually cleaned, the filter screen is lifted back to the original position by the crane after the cleaning is finished, the top cover is restored to be connected with the bolts, and then the front pipeline valve and the rear pipeline valve are opened to inject water and exhaust. The whole process of disassembling is inconvenient to operate, consumes long time (about 1.5 hours per station), has personnel's potential safety hazard because of the restriction of operating space, can influence the energy supply safety of energy station simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that traditional basket filter washs hard consuming time.

In order to achieve the above object, the utility model discloses a basic scheme provides an anti-washing unit of filter, including the filter tube, the filter tube top is equipped with reserve mouth, reserve mouth department is equipped with the detachable top cap, filter tube one side is equipped with the inlet tube, the opposite side is equipped with the outlet pipe, inlet tube and outlet pipe department all are equipped with the manometer, be equipped with basket filter screen in the filter tube, one side that basket filter screen is close to the inlet tube is less than the mouth of pipe of inlet tube, one side that basket filter screen is close to the outlet pipe is higher than the mouth of pipe of outlet pipe, the filter tube bottom is equipped with the slag notch, basket filter screen bottom is equipped with the relief valve of a plurality of openings towards the slag notch, slag notch department flange joint has the valve, valve one side is equipped with the switch that.

The principle and effect of this basic scheme lie in:

1. be equipped with basket filter screen in the filter tube, the one side that basket filter screen is low is established in inlet tube one side, and the rivers that get into the filter tube are gone into in the basket filter screen, and the one side that basket filter screen is high is established in outlet pipe one side, plays to filter and prevents that impurity from getting into the effect in the outlet pipe, and basket filter screen one side height one side is low, blocks debris in the filter screen, and debris deposit plays the effect of filtering and collecting the filtrations in the filter screen.

2. The filter tube bottom is equipped with slag notch and valve, discharges the water in the filter tube with the mode of opening the valve, utilizes the water pressure when discharging water to strike the relief valve of basket filter screen bottom, and the relief valve receives the water impact to open, and debris in the filter screen can follow the opening outflow that the relief valve was opened, then flows from the slag notch.

3. The water and the impurities fall on the slag removing chamber and can be conveniently swept away when falling on the slag removing chamber, so that the water and the impurities are prevented from scattering everywhere or blocking other pipelines.

4. The water inlet pipe and the water outlet pipe are respectively provided with a pressure gauge, a preset value is set in advance, and when the pressure difference value between the two pressure gauges exceeds the preset value, the filter can be judged to need to be cleaned.

5. Compared with the prior art, the novel device can realize on-line backwashing, when the basket filter needs to be cleaned, a machine does not need to be suspended to empty river water, only the manual valve needs to be opened by a small angle, impurities in the filter are flushed out through water flow under the action of water pressure of a pipe network, the removed impurities can be collected by the slag removing chamber at the outlet, the whole process is about 5 minutes in use, and the efficiency is greatly improved.

Further, the slagging-off room surface is the domatic of slope, is equipped with a plurality of water strainer holes on domatic, and domatic both sides are equipped with spacing frame, and sliding connection has the slagging-off board between the spacing frame, and the slagging-off room is inside to be equipped with the header tank, and the inside water pump that is equipped with of header tank is connected with the drinking-water pipe on the water pump, and the drinking-water pipe free end communicates with filter tube one side. Debris fall on the slag discharging chamber is domatic, utilize the slagging-off board to sweep down, convenient collection and recovery, and in water got into the header tank through the drainage hole, in taking back the filter tube again through the water pump, play the effect that the water resource was not wasted in the reutilization.

Furthermore, the free end of the water pumping pipe is connected to one side, close to the short part of the basket type filter screen, of the filter pipe. Can play the secondary filter's effect, prevent that debris from directly entering into in the outlet pipe.

Furthermore, the water inlet pipe, the water outlet pipe, the water pumping pipe and the filter pipe are connected through flanges. The flange connection is convenient to use, can bear larger pressure, has better strength and tightness in flange connection, has wide applicable size range, and can be applied to equipment and pipelines.

Further, the valve is a DN300 manual butterfly valve. The butterfly valve is small in size and light in weight, only comprises a few parts, can be opened and closed quickly only by rotating 90 degrees, is convenient and quick to open and close, saves labor, has small fluid resistance, can be operated frequently, and has good fluid control characteristic.

Furthermore, a display screen is arranged on one side of the valve. For observing the rotation angle of the valve switch.

Furthermore, a sealing ring is arranged at the joint of the valve and the filter pipe. And a better sealing effect is achieved.

Furthermore, the top cover is connected with the filter pipe through a flange. The flange connection is convenient to use and can be disassembled.

Drawings

Fig. 1 is a front view of a backwashing device for a filter according to an embodiment of the present invention.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a filter pipe 1, a top cover 2, a water inlet pipe 3, a water outlet pipe 4, a basket type filter screen 5, a slag outlet 6, a safety valve 7, a valve 8, a switch 9, a slag removing chamber 10, a slope 11, a limiting frame 12, a slag removing plate 13, a water collecting tank 14, a water pump 15 and a water pumping pipe 16.

An embodiment of a filter backwashing device is shown in figure 1. Including filter tube 1, 1 top of filter tube is equipped with reserve mouth, reserve mouth department is equipped with detachable top cap 2, adopt flange joint between top cap 2 and the filter tube 1, 1 left side of filter tube is equipped with inlet tube 3, the right side is equipped with outlet pipe 4, inlet tube 3 and outlet pipe 4 department all are equipped with the manometer, be equipped with basket filter screen 5 in the filter tube 1, basket filter screen 5 low right side height in a left side, basket filter screen 5's left side is less than the mouth of pipe of inlet tube 3, basket filter screen 5's right side is higher than the mouth of pipe of outlet pipe 4, 1 bottom of filter tube is equipped with slag notch 6, basket filter screen 5 bottom is equipped with three opening towards relief valve 7 of slag notch 6, relief valve 7 diameter is greater than basket filter screen 5 apertures, 6 flange joint in slag notch has valve 8, valve 8 is equipped with the sealing washer with filter tube 1 junction, valve 8 adopts DN300 manual butterfly valve, 8 front side is equipped with the display screen, valve 8.

The slag removing chamber 10 is arranged below the filter pipe 1, the surface of the slag removing chamber 10 is an inclined slope surface 11, the highest position of the slope surface 11 is right opposite to the slag outlet 6, a plurality of water filtering holes are formed in the slope surface 11, limiting frames 12 are arranged on the left and right sides of the slope surface 11, slag removing plates 13 are connected between the limiting frames 12 in a sliding mode, a water collecting tank 14 is arranged inside the slag removing chamber 10, a water pump 15 is arranged inside the water collecting tank 14, a water pumping pipe 16 is connected onto the water pump 15, the upper end of the water pumping pipe 16 is communicated with the left side of the filter pipe 1, the communicated position is above the water inlet pipe 3 and close to the short part of the basket type filter screen 5, and the water.

When the river water filter is in operation, sucked river water enters the filter pipe 1 from the water inlet pipe 3, one side, close to the water inlet pipe 3, of the basket type filter screen 5 is lower than the pipe orifice of the water inlet pipe 3, the river water flows into the basket type filter screen 5, impurities are filtered and sieved out by the basket type filter screen 5 and deposited in the basket type filter screen, the filtered water is discharged from the water outlet pipe 4, and one side, close to the water outlet pipe 4, of the basket type filter screen 5 is higher than the pipe orifice of the water outlet pipe 4, so that the impurities are prevented from entering the water outlet.

Sundries are deposited in the basket type filter screen 5, after the basket type filter screen is used for a period of time, a worker can judge that the sundries are excessively deposited by looking at pressure gauges at a water inlet pipe 3 and a water outlet pipe 4 of the filter pipe 1 according to the fact that the differential pressure value exceeds a set value, a switch 9 of a valve 8 is manually opened, when a butterfly valve is opened at a small angle, water flows out from a slag outlet 6, the water pressure in the pipe is increased, water flow impacts a safety valve 7 at the bottom of the basket type filter screen 5, the safety valve 7 is opened under the impact force of the water flow, the sundries in the basket type filter screen 5 are flushed out from the safety valve 7 by the impact of the water flow, the sundries flow out from the slag outlet 6, the water in the filter pipe 1 does not need to be drained first, when the sundries cannot be drained out due to the problem at the valve 8, a top cover 2 at a spare port can be opened, the water in the filter pipe 1 returns to normal flow, and the safety valve 7 is automatically closed without being impacted by water flow.

From the debris that include water and after filtering that the slag notch 6 flows out, the collection of debris of being not convenient for with the direct discharge of water and debris, simultaneously cause the waste to the water that flows out, set up deslagging chamber 10 below filter tube 1, water and debris fall on deslagging chamber 10, debris are stayed on sloping surface 11 of deslagging chamber 10, water passes through the drainage hole and gets into in the header tank 14, the debris that fall on sloping surface 11 can be convenient through deslagging plate 13 sweeps, from high to low sweeping laborsaving convenience, the water that flows into header tank 14 is taken out filter tube 1 again through water pump 15, the effect of reutilization plays, the water economy resource.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (8)

1. The utility model provides an anti-washing unit of filter, a serial communication port, including the filter tube, the filter tube top is equipped with reserve mouth, reserve mouth department is equipped with the detachable top cap, filter tube one side is equipped with the inlet tube, the opposite side is equipped with the outlet pipe, inlet tube and outlet pipe department all are equipped with the manometer, be equipped with basket filter screen in the filter tube, one side that basket filter screen is close to the inlet tube is less than the mouth of pipe of inlet tube, one side that basket filter screen is close to the outlet pipe is higher than the mouth of pipe of outlet pipe, the filter tube bottom is equipped with the slag notch, basket filter screen bottom is equipped with the relief valve of a plurality of openings towards the slag notch, slag notch department flange joint has the valve, valve one side is equipped with the switch.

2. The backwashing apparatus of the filter as claimed in claim 1, wherein: the slagging-off room surface is the domatic of slope, is equipped with a plurality of water filtering holes on domatic, and domatic both sides are equipped with spacing frame, and sliding connection has the slagging-off board between the spacing frame, and the slagging-off room is inside to be equipped with the header tank, and the inside water pump that is equipped with of header tank is connected with the drinking-water pipe on the water pump, and the drinking-water pipe free end communicates with filter tube one side.

3. The backwashing apparatus of the filter as claimed in claim 2, wherein: the free end of the water pumping pipe is connected to one side, close to the short part of the basket type filter screen, of the filter pipe.

4. A filter backwash device as defined in claim 3, wherein: the water inlet pipe, the water outlet pipe, the water pumping pipe and the filter pipe are all connected through flanges.

5. A filter backwash device as defined in any one of claims 1 to 4, wherein: the valve is a DN300 manual butterfly valve.

6. The backwashing apparatus of the filter as claimed in claim 5, wherein: and a display screen is arranged on one side of the valve.

7. The backwashing apparatus for filter as claimed in claim 6, wherein: and a sealing ring is arranged at the joint of the valve and the filter pipe.

8. The backwashing apparatus of the filter as claimed in claim 1, wherein: the top cover is connected with the filter pipe through a flange.

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