CN211799355U - Circulating water filter device with self-cleaning function - Google Patents
Circulating water filter device with self-cleaning function Download PDFInfo
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- CN211799355U CN211799355U CN201922335373.5U CN201922335373U CN211799355U CN 211799355 U CN211799355 U CN 211799355U CN 201922335373 U CN201922335373 U CN 201922335373U CN 211799355 U CN211799355 U CN 211799355U
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Abstract
The utility model relates to a circulating water filters technical field, especially relates to a circulating water filter device with self-cleaning function, and its structure is: the partition plate is fixed on the inner wall of the shell, and the liquid level pipe is fixed on the partition plate; the upper end of the water pipe is fixed on the partition plate, and the lower end of the water pipe extends to the bottom of the shell; the filter layer is positioned in the shell, the forward washing liquid inlet pipe is communicated with the liquid level pipe, and the forward washing liquid outlet pipe is positioned outside the shell; the first forward washing valve and the second forward washing valve are respectively arranged on the forward washing liquid inlet pipe and the forward washing liquid outlet pipe, and the flow meter is arranged on the forward washing liquid inlet pipe; two ends of the backwashing liquid inlet pipe are respectively communicated with the shell and the forward washing liquid inlet pipe, and the first backwashing valve is arranged on the backwashing liquid inlet pipe; the upper end of the backwashing liquid outlet pipe is communicated with the forward washing liquid inlet pipe, the second backwashing valve is installed on the backwashing liquid outlet pipe, and the lower end of the backwashing liquid outlet pipe is positioned in the sedimentation tank. The device can realize the forward washing and the backwash function, realizes having realized the washing of filter layer when carrying out the filtration to the circulating water.
Description
Technical Field
The utility model relates to a circulating water filters technical field, especially relates to a circulating water filter device with self-cleaning function.
Background
The information disclosed in the background of the invention is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information constitutes prior art that is already known to a person of ordinary skill in the art.
At present, thalli and algae bred in circulating water of a circulating water cooling facility of a chemical enterprise run for a long time are left in a circulating water system, so that the circulating water is high in turbidity and easy to deposit and block circulating water heat exchange equipment. About 5% of circulating water is required to enter a filtering facility for clarification and then returns to a circulating water cooling system. The facility for filtering and clarifying the circulating water generally adopts a side filtering facility, a water source is led out from a circulating water return pipeline to enter the side filtering facility, and the circulating water returns to the water cooling tower after being filtered clearly enough. However, most of the existing side filtration facilities have filter blockage after being used for a period of time, generally need manual operation to clean the filtration device, and need to invest a large amount of manpower and material resources.
SUMMERY OF THE UTILITY MODEL
To foretell problem, the utility model provides a circulating water filter device with self-cleaning function, the device can realize just washing and backwash function, just washing and lead to the filter layer to block up, filter efficiency weaken the back, can adopt the backwash to realize the abluent while of filter layer, continue to filter the circulating water. In order to achieve the above object, the utility model discloses a technical means do:
a circulating water filter device with a self-cleaning function, comprising: the device comprises a shell, a partition plate, a liquid level pipe, a water delivery pipe, a filter layer, a forward washing liquid inlet pipe, a forward washing liquid outlet pipe, a first forward washing valve, a second forward washing valve, a backwashing liquid inlet pipe, a backwashing liquid outlet pipe, a first backwashing valve, a second backwashing valve, a sedimentation tank, a water pump and a flowmeter; the shell is of a structure with a cavity, the partition is fixed on the inner wall of the cavity to separate the cavity into an upper space and a lower space, the lower end of the liquid level pipe is fixed on the partition and communicated with the lower space, and the upper end of the liquid level pipe extends out of the shell. The upper end of the water delivery pipe is fixed on the partition plate and communicated with the upper space, and the lower end of the water delivery pipe extends towards the bottom of the lower space; the filter layer is laid at the bottom of the lower space and passes through the lower end of the water conveying pipe, one end of the forward washing liquid inlet pipe is communicated with the liquid level pipe, and the other end of the forward washing liquid inlet pipe extends out of the shell; the positive washing liquid outlet pipe is positioned outside the shell and is communicated with the upper space; the first forward washing valve and the second forward washing valve are respectively arranged on the forward washing liquid inlet pipe and the forward washing liquid outlet pipe, the first forward washing valve is positioned outside the shell, and the flow meter is arranged on the forward washing liquid inlet pipe and is close to the outer wall of the shell; two ends of the backwashing liquid inlet pipe are respectively communicated with the upper space and the forward washing liquid inlet pipe, and the first backwashing valve is arranged on the backwashing liquid inlet pipe; backwash drain pipe upper end and positive washing feed liquor pipe intercommunication, the intercommunication position is between first positive washing valve and casing, and the second backwash valve is installed on the backwash drain pipe, and backwash drain pipe lower extreme is arranged in the sedimentation tank, and the water pump passes through pipeline and sedimentation tank intercommunication.
Furthermore, the filtering layer is a quartz sand layer, and a filter screen is arranged in the lower port of the water pipe, so that quartz sand is prevented from entering the water pipe; preferably, the quartz sand layer consists of two layers of quartz sand with different granularity, wherein the quartz sand particles on the upper layer are smaller than those on the lower layer.
Furthermore, the shell is provided with an air distribution pipe, the air distribution pipe is provided with an air distribution valve, and the air distribution pipe is used for blowing air into the quartz sand layer to play a role in cleaning the filter layer to a certain degree.
Furthermore, the air distribution pipe is connected with an air source, an air pump is arranged on the connecting pipeline, and air is conveyed into the quartz sand layer through the air pump.
Further, the clapboard is in a conical structure, is reversely buckled in the chamber formed by the shell and forms a funnel-shaped structure with the liquid level pipe.
Furthermore, a liquid level meter is arranged at one end of the liquid level pipe, which is positioned outside the shell, and the change of the filtering effect of the filtering layer is observed according to the change of the water level of the liquid level meter; optionally, the liquid level meter is a differential pressure meter.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model is provided with the forward washing pipeline and the valve thereof, the backwashing pipeline and the valve thereof, so that the filter layer can be blocked during forward washing, and after the filtering efficiency is weakened, the filter layer is cleaned by backwashing, and then the circulating water is continuously filtered; not only realizes the filtration of the circulating water, but also has the function of automatically cleaning the filter layer.
(2) The utility model discloses an adopt the quartz sand layer as the filter layer to through the cooperation with the gas distribution pipe, can make the deposit separate with quartz sand in the quartz sand layer and the mud on quartz sand particle surface etc. and more be favorable to wasing the filter layer.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural diagram of a circulating water filter device with an automatic cleaning function in an embodiment of the present invention.
The reference numerals in the drawings denote: 1-shell, 2-baffle, 3-liquid level pipe, 4-water pipe, 5-filter layer, 6-forward washing liquid inlet pipe, 7-forward washing liquid outlet pipe, 8-first forward washing valve, 9-second forward washing valve, 10-backwash liquid inlet pipe, 11-backwash liquid outlet pipe, 12-first backwash valve, 13-second backwash valve, 14-sedimentation tank, 15-water pump, 16-upper space, 17-lower space, 18-flowmeter, 19-gas distribution pipe, 20-gas distribution valve and 21-liquidometer.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate that the device or element referred to in the present application is constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention, since they are merely intended to be oriented in the upper, lower, left and right directions of the drawings themselves, and not to limit the structure, but merely to facilitate the description of the invention and to simplify the description.
The terms "mounted", "connected" and "fixed" in the present invention should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As mentioned above, most of the existing side filtration facilities have a filter blockage phenomenon after being used for a period of time, and generally need manual operation to clean the filtration device, which requires a large amount of manpower and material resources. Therefore, the utility model provides a circulating water filter device with an automatic cleaning function; the invention will now be further described with reference to the drawings and specific examples.
First embodimentReferring to FIG. 1, anAn embodiment the utility model relates to a circulating water filter device with self-cleaning function, include: the device comprises a shell 1, a partition plate 2, a liquid level pipe 3, a water conveying pipe 4, a filter layer 5, a forward washing liquid inlet pipe 6, a forward washing liquid outlet pipe 7, a first forward washing valve 8, a second forward washing valve 9, a backwashing liquid inlet pipe 10, a backwashing liquid outlet pipe 11, a first backwashing valve 12, a second backwashing valve 13, a sedimentation tank 14, a water pump 15 and a flowmeter 18.
The shell 1 forms a structure with a cavity, the partition plate 2 is fixed on the inner wall of the cavity to separate the cavity into an upper space 16 and a lower space 17, the lower end of the liquid level pipe 3 is fixed on the partition plate 2 and communicated with the lower space, and the upper end of the liquid level pipe 3 extends out of the shell. The upper end of the water delivery pipe 4 is fixed on the partition board 2 and is communicated with the upper space, and the lower end of the water delivery pipe 4 extends towards the bottom of the lower space; the filter layer 5 is laid at the bottom of the lower space and passes through the lower end of the water conveying pipe 4, one end of the forward washing liquid inlet pipe 6 is communicated with the liquid level pipe 3, and the other end of the forward washing liquid inlet pipe extends out of the shell; the forward washing liquid outlet pipe 7 is positioned outside the shell and is communicated with the upper space; first positive washing valve 8, second positive washing valve 9 are installed respectively on positive washing feed liquor pipe 6, positive washing drain pipe 7, and just first positive washing valve is located outside the casing, and flowmeter 18 installs the position that is close to the casing outer wall on positive washing feed liquor pipe 6.
Two ends of the backwashing liquid inlet pipe 10 are respectively communicated with the upper space 16 and the forward washing liquid inlet pipe 6, and the first backwashing valve 12 is arranged on the backwashing liquid inlet pipe 10; the upper end of the backwash liquid outlet pipe 11 is communicated with the forward washing liquid inlet pipe 6, the communication part is arranged between the first forward washing valve 8 and the shell 1, the second backwash valve 13 is arranged on the backwash liquid outlet pipe 11, the lower end of the backwash liquid outlet pipe 11 is positioned in the sedimentation tank 14, and the water pump 15 is communicated with the sedimentation tank 14 through a pipeline.
When forward washing is carried out, the first forward washing valve 8 and the second forward washing valve 9 are opened, other valves are closed, the electrodes drive the water pump to enable circulating water to sequentially enter the lower space 17 through the forward washing liquid inlet pipe 6, the first forward washing valve 8 and the liquid level pipe 3, the circulating water is filtered by the filter layer 5 and then sequentially flows out through the lower port of the water conveying pipe 4, the upper space 16 and the forward washing liquid outlet pipe 7 (shown by arrows in figure 1), and impurities in the circulating water are mainly intercepted on the upper layer of the filter layer.
After a period of time of positive washing, the filtering capacity of the filtering layer is reduced due to the accumulation of a large amount of impurities on the upper layer of the filtering layer, the water permeability is reduced, the measured value of the flow meter 18 is reduced, when the measured value reaches a set value, back washing is started, the first positive washing valve 8 and the second positive washing valve 9 are closed, the first back washing valve 12 and the second back washing valve 13 are opened, circulating water enters the upper space 16 through the back washing liquid inlet pipe 10, then enters the sedimentation tank 14 through the lower port of the water conveying pipe 4, the filtering layer 5, the positive washing liquid inlet pipe 6 and the back washing liquid outlet pipe 11, and in the back washing process, the circulating water moves from the lower layer of the filtering layer 5 to the upper layer to flush and take out the impurities on the upper layer of the filtering layer, then enters the sedimentation tank 14 to perform over sedimentation, then the upper layer clear liquid is. It can be seen that the automatic cleaning of the filter layer is realized by realizing the filtration of the circulating water.
It is understood that on the basis of the first embodiment, the following technical solutions including but not limited to the following may be derived to solve different technical problems and achieve different purposes of the invention, and specific examples are as follows:
second embodimentThe filtering layer is a quartz sand layer, and a filter screen is arranged in the lower port of the water conveying pipe 4, so that quartz sand is prevented from entering the water conveying pipe 4; preferably, the quartz sand layer 5 is composed of two layers of quartz sand with different particle sizes, wherein the upper layer of quartz sand particles are smaller than the lower layer of quartz sand particles. The large-particle quartz sand on the lower layer is beneficial to better enabling filtered circulating water to permeate in the forward washing, and the load of the water pump is reduced.
Third embodimentReferring to fig. 1, an air distribution pipe 19 is arranged on the housing 1, an air distribution valve 20 is arranged on the air distribution pipe, the air distribution pipe 19 is connected with an air source, an air pump is arranged on the connecting pipeline, and the air pump is driven by the electrode to convey air to the quartz sand layer. The gas distribution pipe 19 is used for blowing gas into the quartz sand layer to stir the quartz sand layer so as to loosen the hardened quartz sand, simultaneously, separating sludge and the like deposited at the bottom of the filter layer and on the surface of quartz sand particles during backwashing from the quartz sand, when the gas distribution is stopped, the quartz sand falls rapidly due to heavy weight, the sludge and the like enter the water level inlet pipe 3, and the forward washing is carried outThe liquid inlet pipe 6 is drawn away, so the gas distribution pipe 19 can also play a role in cleaning the filter layer to a certain extent.
Fourth embodimentWith continued reference to fig. 1, the partition 2 is of a conical configuration, which is inverted within the chamber formed by the housing and forms a funnel-shaped configuration with the fluid level tube 3.
Fifth embodimentWith continued reference to fig. 1, the end of the liquid level pipe 3 outside the housing is provided with a liquid level gauge 20, which is a differential pressure gauge; besides the change of the filtering effect of the filtering layer is judged according to the change of the flow meter, the change of the filtering effect of the filtering layer can be observed according to the change of the water level of the liquid level meter so as to determine whether backwashing or forward washing is needed. When the filtering effect of the filtering layer is weakened, the liquid level displayed by the liquid level meter is reduced, and for example, when the pressure difference is lower than 50KPa, the filter backwashing action is started.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A circulating water filter device with an automatic cleaning function is characterized by comprising: the device comprises a shell, a partition plate, a liquid level pipe, a water delivery pipe, a filter layer, a forward washing liquid inlet pipe, a forward washing liquid outlet pipe, a first forward washing valve, a second forward washing valve, a backwashing liquid inlet pipe, a backwashing liquid outlet pipe, a first backwashing valve, a second backwashing valve, a sedimentation tank, a water pump and a flowmeter;
the shell is of a structure with a cavity, the partition plate is fixed on the inner wall of the cavity to separate the cavity into an upper space and a lower space, the lower end of the liquid level pipe is fixed on the partition plate and communicated with the lower space, and the upper end of the liquid level pipe extends out of the shell; the upper end of the water delivery pipe is fixed on the partition plate and communicated with the upper space, and the lower end of the water delivery pipe extends towards the bottom of the lower space; the filter layer is laid at the bottom of the lower space and passes through the lower end of the water conveying pipe, one end of the forward washing liquid inlet pipe is communicated with the liquid level pipe, and the other end of the forward washing liquid inlet pipe extends out of the shell; the positive washing liquid outlet pipe is positioned outside the shell and is communicated with the upper space; the first forward washing valve and the second forward washing valve are respectively arranged on the forward washing liquid inlet pipe and the forward washing liquid outlet pipe, the first forward washing valve is positioned outside the shell, and the flow meter is arranged on the forward washing liquid inlet pipe and is close to the outer wall of the shell; two ends of the backwashing liquid inlet pipe are respectively communicated with the upper space and the forward washing liquid inlet pipe, and the first backwashing valve is arranged on the backwashing liquid inlet pipe; backwash drain pipe upper end and positive washing feed liquor pipe intercommunication, the intercommunication position is between first positive washing valve and casing, and the second backwash valve is installed on the backwash drain pipe, and backwash drain pipe lower extreme is arranged in the sedimentation tank, and the water pump passes through pipeline and sedimentation tank intercommunication.
2. The circulating water filter device with the automatic cleaning function as claimed in claim 1, wherein the filtering layer is a quartz sand layer, and a filter screen is installed in the lower port of the water pipe.
3. The circulating water filter device with the automatic cleaning function as claimed in claim 2, wherein the quartz sand layer is composed of two layers of quartz sand with different particle sizes, wherein the upper layer of quartz sand particles are smaller than the lower layer of quartz sand particles.
4. The circulating water filter device with the automatic cleaning function as claimed in claim 2 or 3, wherein a gas distribution pipe is arranged on the housing, and a gas distribution valve is arranged on the gas distribution pipe.
5. The circulating water filter device with automatic cleaning function as claimed in claim 4, wherein the air distribution pipe is connected with an air source, and an air pump is arranged on the connecting pipeline.
6. The circulating water filter device with automatic cleaning function as claimed in any one of claims 1-3, wherein the partition is a cone-shaped structure which is inverted in the chamber formed by the housing and forms a funnel-shaped structure with the liquid level pipe.
7. The circulating water filter device with automatic cleaning function as claimed in any one of claims 1-3, wherein a level meter is arranged on one end of the liquid level pipe outside the shell.
8. The circulating water filter device with automatic cleaning function as claimed in claim 7, wherein the liquid level meter is a differential pressure meter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922335373.5U CN211799355U (en) | 2019-12-20 | 2019-12-20 | Circulating water filter device with self-cleaning function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922335373.5U CN211799355U (en) | 2019-12-20 | 2019-12-20 | Circulating water filter device with self-cleaning function |
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| CN211799355U true CN211799355U (en) | 2020-10-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130116A (en) * | 2021-10-26 | 2022-03-04 | 北京天玛智控科技股份有限公司 | Filter washing control method and device and electronic equipment |
| CN114541994A (en) * | 2022-03-28 | 2022-05-27 | 广东省有色矿山地质灾害防治中心 | Control method and system for exploration hydrogeological drilling mud circulation purification device |
-
2019
- 2019-12-20 CN CN201922335373.5U patent/CN211799355U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130116A (en) * | 2021-10-26 | 2022-03-04 | 北京天玛智控科技股份有限公司 | Filter washing control method and device and electronic equipment |
| CN114130116B (en) * | 2021-10-26 | 2023-09-01 | 北京天玛智控科技股份有限公司 | Filter flushing control method and device and electronic equipment |
| CN114541994A (en) * | 2022-03-28 | 2022-05-27 | 广东省有色矿山地质灾害防治中心 | Control method and system for exploration hydrogeological drilling mud circulation purification device |
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