CN213668261U - Valveless automatic backwashing filter - Google Patents
Valveless automatic backwashing filter Download PDFInfo
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- CN213668261U CN213668261U CN202021960486.0U CN202021960486U CN213668261U CN 213668261 U CN213668261 U CN 213668261U CN 202021960486 U CN202021960486 U CN 202021960486U CN 213668261 U CN213668261 U CN 213668261U
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- liquid level
- backflushing
- level sensor
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Abstract
The utility model discloses a valveless automatic back flush filter, including filtering ponds, filter layer, recoil pump, recoil pipe, recoil pond and controlling means, wherein: the filter layer is arranged in the filter tank and is positioned between the water inlet end and the water outlet end in height; the two ends of the backflushing pipe are respectively communicated with the water outlet end and the backflushing pool, the backflushing pump is arranged at the bottom of the backflushing pool and is arranged on the backflushing pipe, and the backflushing pool is provided with a water outlet; the control device comprises a first liquid level sensor, a second liquid level sensor and a controller, the first liquid level sensor and the second liquid level sensor are electrically connected with the controller, the first liquid level sensor is arranged in the filtering tank, the second liquid level sensor is arranged in the backflushing tank, when the liquid level in the filtering tank rises to the first liquid level sensor, the controller controls the backflushing pump to work, and when the liquid level in the backflushing tank drops to the second liquid level sensor, the controller controls the backflushing pump to stop working. The utility model discloses utilize the recoil pump can make the back flush of filtering ponds more thorough.
Description
Technical Field
The utility model relates to a sewage treatment technical field, specificly relate to a valveless automatic back flush filter.
Background
At present, the valveless filter on the market mainly utilizes a siphon principle to carry out regular back washing, and the filter does not use valves for water inlet, water outlet, back washing and water discharge and automatically operates under the action of water power. However, in the process of using the siphon filter, a certain height difference is required to exist between the filter tank and the water storage tank, the flushing water head is limited by the depth of the tank, and sometimes the flushing effect is not ideal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technical insufficiency, provide a valveless automatic back flush filter for solve among the prior art filter and wash not thorough problem.
In order to achieve the technical purpose, the technical proposal of the utility model is as follows: the utility model provides a valveless automatic back flush filter, its includes filtering ponds, filter layer, recoil pump, recoil pipe, recoil pond and controlling means, wherein: the filter tank comprises a water inlet end and a water outlet end, and the water inlet end is higher than the water outlet end; the filter layer is arranged in the filter tank, and the height of the filter layer is between the water inlet end and the water outlet end; the two ends of the backflushing pipe are respectively communicated with the water outlet end and the backflushing pool, the backflushing pump is arranged at the bottom of the backflushing pool and is arranged on the backflushing pipe, and the backflushing pool is provided with a water outlet; the control device comprises a first liquid level sensor, a second liquid level sensor and a controller, the first liquid level sensor and the second sensor are electrically connected with the controller, the first liquid level sensor is arranged in the filter tank, the second liquid level sensor is arranged in the backflushing tank, when the liquid level in the filter tank rises to the time of the first liquid level sensor, the controller controls the backflushing pump to work, and when the liquid level in the backflushing tank drops to the time of the second liquid level sensor, the controller controls the backflushing pump to stop working.
Preferably, the valveless automatic backwashing filter further comprises a water distributor, and the water distributor is positioned at the filtering layer and arranged in the filtering tank.
Preferably, the valveless automatic backwashing filter further comprises a water collector, wherein one end of the water collector is arranged above the water distributor and used for collecting backwashing water, and the other end of the water collector is higher than the first liquid level sensor and used for discharging the backwashing water.
Compared with the prior art, the beneficial effects of the utility model include: and controlling back flushing by using a control device, wherein when a filter layer in the filter tank is blocked, a back flushing pump is started after the liquid level rises to a certain height, clear water in the back flushing tank is reversely pumped into the filter tank, and when the liquid level in the back flushing tank drops to a certain height, the back flushing pump is closed to stop back flushing, so that the back flushing of the filter tank can be more thorough by using the back flushing pump.
Drawings
FIG. 1 is a schematic structural diagram of a valveless automatic backwashing filter provided by the present invention;
reference numerals: 1-a filter tank, 2-a filter layer, 3-a backflushing pump, 4-a backflushing pipe, 5-a backflushing tank, 6-a control device, 7-a water distributor, 8-a water collector, 11-a water inlet end, 12-a water outlet end, 51-a water outlet, 61-a first liquid level sensor, 62-a second liquid level sensor and 63-a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present embodiment provides a valveless automatic backwashing filter, which includes a filter tank 1, a filter layer 2, a backwashing pump 3, a backwashing pipe 4, a backwashing tank 5, and a control device 6, wherein:
the filtering tank 1 comprises a water inlet end 11 and a water outlet end 12, wherein the water inlet end 11 is higher than the water outlet end 12.
The filter layer 2 is arranged in the filter tank 1 and is positioned at a height between the water inlet end 11 and the water outlet end 12, so that sewage enters the filter tank 1 from the water inlet end 11 and is filtered by the filter layer 2 and then flows out from the water outlet end 12. The filter material of the filter layer 2 can be quartz sand, anthracite, ceramsite, zeolite, granular activated carbon, volcanic rock, activated alumina and other granular fillers.
The two ends of the recoil pipe 4 are respectively communicated with the water outlet end 12 and the recoil pool 5, the recoil pump 3 is arranged at the bottom of the recoil pool 5 and is arranged on the recoil pipe 4, the recoil pool 5 is provided with a water outlet 51, water filtered by the filter layer 2 flows into the recoil pool 5 from the water outlet end 12 through the recoil pipe 4 and flows out from the water outlet 51, the recoil pump 3 is arranged on the recoil pipe 4, the recoil pump 3 does not work under normal conditions, clear water cannot be prevented from flowing into the recoil pool 5 from the recoil pipe 4, and the clear water in the recoil pool 5 can be reversely pumped into the filter pool 1 only during recoil. Thus, the filtered water flows to the backflushing basin 5 via the backflushing pump 3 on the backflushing pipe 4.
The control device 6 comprises a first liquid level sensor 61, a second liquid level sensor 62 and a controller 63, the controller 63 can adopt a single chip microcomputer, a PLC and the like, the control logic is very simple, the existing control is adopted, the description is omitted, and even the simpler logic circuit control can be adopted, the first liquid level sensor 61 and the second liquid level sensor are both electrically connected with the controller 63, the first liquid level sensor 61 is arranged in the filtering tank 1, the second liquid level sensor 62 is arranged in the backflushing tank 5, when the liquid level in the filtering tank 1 rises to the first liquid level sensor 61, the first liquid level sensor 61 outputs a signal to the controller 63 to control the recoil pump 3 to work, and clean water in the recoil tank 5 is pumped into the filtering tank 1, so that the liquid level in the recoil tank 5 is reduced, when the liquid level in the recoil pool 5 drops to the second liquid level sensor 62, the second liquid level sensor 62 outputs a signal. The controller 63 controls the recoil pump 3 to stop operating. In addition, it should be noted that the first liquid level sensor 61 and the second liquid level sensor 62 may be replaced with liquid level switches, and at this time, the controller 63 may not be needed, and the two liquid level switches are connected in parallel to directly control the backflushing pump 3, specifically, when the liquid level in the filtering tank 1 rises to a specified liquid level, the first liquid level switch is turned on, the second liquid level switch in the backflushing tank 5 is below the liquid level, the second liquid level switch is also in a turned-on state, at this time, the circuit is turned on, the backflushing pump 3 operates to reversely pump the clean water in the backflushing tank 5 into the filtering tank 1, the liquid level in the backflushing tank 5 falls, until the clean water level is lower than the second liquid level switch, the second liquid level switch is turned off, the circuit is turned off, and the backflushing pump 3 stops operating, and a.
As a preferred embodiment, the valveless automatic backwashing filter also comprises a water distributor 7, the water distributor 7 is positioned at the height of the filter layer 2 and is arranged in the filter tank 1, and sewage entering the filter tank 1 from the water inlet end 11 uniformly flows to the filter layer 2 through the water distributor 7.
As a preferred embodiment, the valveless automatic backwashing filter further includes a water collector 8, one end of the water collector 8 is disposed above the water distributor 7 for collecting the backwashing water, and the other end is higher than the first level sensor 61 and for discharging the backwashing water. The sewage flushed during the back flushing enters the water collector 8 through the cover at one end of the water collector 8 and then is discharged out of the filter tank 1 from the other end.
The working principle of the valveless automatic backwashing filter provided by the utility model is explained in detail as follows: sewage to be filtered enters the filter tank 1 from the water inlet end 11, flows uniformly to the filter layer 2 through the water distributor 7, the filtered water enters the clean water tank through the water outlet end 12 and enters the clean water tank through the backwashing pipe 4, and is finally discharged through the water outlet 51, when the pores of the filter layer 2 are gradually blocked by dirt, the liquid level in the filter tank continuously rises, when the water level rises to a specified height, the controller 63 starts the backwashing pump 3 to automatically perform backwashing, the water in the backwashing tank 5 is pumped into the filter tank 1 through the backwashing pipe 4 and back-washes the filter layer 2, and then is discharged through the water collector 8 together with the water inlet of the water distributor 7, in addition, during the backwashing, the filter tank 1 does not stop water inlet, the inlet water and the backwashing water are discharged outwards through the water collector 8 together, during the backwashing, the liquid level of the backwashing tank 5 continuously drops, when the water level in the backwashing tank 5 falls to the lowest level, the controller 63 controls the backwashing pump 3 to stop, and finishing the backwashing process.
The above detailed description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (3)
1. The utility model provides a valveless automatic back flush filter which characterized in that, includes filtering ponds, filter layer, recoil pump, recoil pipe, recoil pond and controlling means, wherein:
the filter tank comprises a water inlet end and a water outlet end, and the water inlet end is higher than the water outlet end;
the filter layer is arranged in the filter tank, and the height of the filter layer is between the water inlet end and the water outlet end;
the two ends of the backflushing pipe are respectively communicated with the water outlet end and the backflushing pool, the backflushing pump is arranged at the bottom of the backflushing pool and is arranged on the backflushing pipe, and the backflushing pool is provided with a water outlet;
the control device comprises a first liquid level sensor, a second liquid level sensor and a controller, the first liquid level sensor and the second liquid level sensor are electrically connected with the controller, the first liquid level sensor is arranged in the filter tank, the second liquid level sensor is arranged in the backflushing tank, when the liquid level in the filter tank rises to the time of the first liquid level sensor, the controller controls the backflushing pump to work, and when the liquid level in the backflushing tank drops to the time of the second liquid level sensor, the controller controls the backflushing pump to stop working.
2. The valveless automatic backwashing filter of claim 1, further comprising a water distributor positioned at a height above the filter layer and within the filter tank.
3. The valveless automatic backwashing filter of claim 2, further comprising a water collector disposed above the water distributor at one end for collecting the backwash water and at the other end higher than the first liquid level sensor for discharging the backwash water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021960486.0U CN213668261U (en) | 2020-09-09 | 2020-09-09 | Valveless automatic backwashing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021960486.0U CN213668261U (en) | 2020-09-09 | 2020-09-09 | Valveless automatic backwashing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213668261U true CN213668261U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021960486.0U Active CN213668261U (en) | 2020-09-09 | 2020-09-09 | Valveless automatic backwashing filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213668261U (en) |
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2020
- 2020-09-09 CN CN202021960486.0U patent/CN213668261U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A valveless automatic backwash filter Effective date of registration: 20230303 Granted publication date: 20210713 Pledgee: Bank of China Limited Wuhan Hanyang sub branch Pledgor: WUHAN FUND ENVIRONMENT PROTECTION Co.,Ltd. Registration number: Y2023420000088 |