CN103785209A - Back washing strainer filter - Google Patents
Back washing strainer filter Download PDFInfo
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- CN103785209A CN103785209A CN201310592750.8A CN201310592750A CN103785209A CN 103785209 A CN103785209 A CN 103785209A CN 201310592750 A CN201310592750 A CN 201310592750A CN 103785209 A CN103785209 A CN 103785209A
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Abstract
The invention relates to a back washing strainer filter. The back washing strainer filter consists of a drain pipe, a water inlet cavity, drain valves and a filtering cavity, wherein the drain pipe passes from the center of a water inlet cavity to the top end of the filtering cavity; holes are formed in the position where the drain pipe corresponds to the drain valve; the filtering cavity is formed by a shell and multiple filter elements; a three-way drain valve is positioned between the water inlet cavity and the filtering cavity; and the number of the drain valves is equal to that of the filter elements. During operation of the filter, the drain valve is on the position where the water inlet cavity and the filter elements are communicated and the drain pipe and the inlet of the filter element are closed, then source water enters the filter element for filtration. When impurities inside the strainer wall and filter element are accumulated to enable the pressure difference of inlet water and outlet water reaches the designed upper limit value, rotating the drain valve at 90 degrees, then the water inlet cavity and the inlet of the filter element are closed, the drain pipe and the inlet of the filter element are communicated, and the filter element is in the back washing state. By adopting the back washing strainer filter, back washing without halting and independent drainage are achieved, and influence on normal operation of the system is low. Compared with the multi-filter combined mode, the back washing strainer filter is compact in structure, low in overall cost and high in working efficiency.
Description
Technical field
The invention belongs to water-treatment technology field, relate to water filtration device, be specifically related to a kind of reverse flushing filter screen filter.
Background technology
Filter is the most widely used a kind of filter plant of agriculture irrigation system and Treatment of Industrial Water.When engineering application at present, the mode mostly combining by multiple filter realizes the backwash of filter screen, and connecting line and valve are more, integrated model is comparatively loose, huge, and overall cost is high, and local head loss is larger, larger to the normal work influence of system when backwash, operating efficiency is relatively low.
Summary of the invention
The object of the present invention is to provide a kind of compact conformation, be convenient to the filter of backwash.
The technical solution that the present invention takes is: a kind of reverse flushing filter screen filter, is made up of blow-off pipe, intake antrum, blowoff valve, filter chamber.Described intake antrum is hollow cylinder, is provided with water inlet pipe on intake antrum, and inlet pressure measuring equipment is set on water inlet pipe, and intake antrum bottom surface is opened multiple circular holes and is connected with the import of filter core by blowoff valve, and circular hole is that even circumferential distributes along the center of intake antrum; Described blowoff valve is triple valve, between intake antrum and filter chamber; Described filter chamber is made up of cylinder blanket and multiple cylindrical filter core, and outer casing top surface is opened the import of multiple filter cores, is provided with outlet pipe on shell, sets out mouth pressure measuring equipment on outlet pipe, and filter core tail end is sealed in shell bottom surface; Described blow-off pipe is from intake antrum outside, arrive filter chamber end face by center through end face and the bottom surface of intake antrum, one end that blow-off pipe is positioned at outside intake antrum is sewage draining exit, one end that blow-off pipe contacts with filter chamber end face is blind end, the position perforate corresponding with blowoff valve of blow-off pipe side, as sewage import, arranges sewage draining exit pressure measurement device on blow-off pipe.
Described reverse flushing filter screen filter, the quantity of blowoff valve is identical with the quantity of filter core, comparatively reasonable when the quantity of blowoff valve and filter core is made as 2-12.In the time that blowoff valve is communicated with intake antrum and filter core import, just close the passage of filter core import and sewage import, filter core is in filtration condition; By after blowoff valve 90-degree rotation, just close intake antrum and filter core intake channel, open the passage of filter core import and sewage import, filter core is in backwash state.When filter work, all filter cores are all in filtration condition; When Filter Back Washing, only have a filter core in backwash state, other filter core is in filtration condition.
Described reverse flushing filter screen filter, water inlet pipe and outlet pipe have four kinds of assembling schemes: the first scheme, water inlet pipe is positioned on the side circumference of intake antrum, and outlet pipe is positioned on the side circumference of shell.First scheme, water inlet pipe is positioned on the side circumference of intake antrum, and outlet pipe is positioned at the bottom surface of shell.The third scheme water inlet pipe is positioned at the end face of intake antrum, and outlet pipe is positioned at the bottom surface of shell.The 4th kind of scheme, water inlet pipe is positioned at the end face of intake antrum, and outlet pipe is positioned on the side circumference of shell.In the time building backwash filter, optionally one of four kinds of schemes.
Described reverse flushing filter screen filter, blowoff valve has two kinds of work and set-up mode: the first is manual work mode, and now blowoff valve is manual three-way valve, and inlet pressure measuring equipment, outlet pressure measuring equipment and sewage draining exit pressure measurement device are Pressure gauge.The second is automatic operation mode, and now blowoff valve is automatic tee valve, and inlet pressure measuring equipment, outlet pressure measuring equipment and sewage draining exit pressure measurement device are pressure sensor.
Described reverse flushing filter screen filter, when work, blowoff valve is in being communicated with intake antrum and filter core import, cutting out the position of blow-off pipe and filter core import, and now source water enters filter core inside and filters, clear water after filtration comes together between filter core and shell, exports by outlet pipe.Along with the increase of filtration time, the accumulation gradually of screen wall and filter core inside, the pressure reduction of water inlet pipe and outlet pipe is increased gradually, in the time that pressure reduction reaches design higher limit, by a blowoff valve 90-degree rotation, the import of intake antrum and this place's filter core is closed, blow-off pipe is communicated with filter core import herein, clear water ecto-entad between filter core and shell enters this filter core, flushing accumulates in the impurity in screen wall and filter screen, sewage after flushing is through filter core import, pass through blowoff valve, entered in blow-off pipe by sewage import, finally discharged by blow-off pipe, this filter core is in backwash state.Along with this filter screen cleans up gradually, in blow-off pipe flow increase, increased pressure, when blow-off pipe internal pressure reaches the design upper limit or observes blowdown in-pipe flow impurity when less, by these blowoff valve reverse rotation 90 degree, this filter core returns to duty.By another blowoff valve 90-degree rotation, carry out the backwash of next filter core, until all filter cores are rinsed well, filter core full recovery is to duty.
The beneficial effect of the present invention structure: the present invention adopts triple valve to filter and the conversion of backwash, and each filter core can independently carry out backwash and blowdown operation, can not shut down filter core is carried out to backwash.Triple valve, between intake antrum and filter chamber, makes multiple worry cores, water feed apparatus and blowdown apparatus compact conformation, and filter general structure is simple, and having two kinds of functions of manual backwashing and automatic backwash can select.With respect to the integrated mode of multiple filter, connecting pipe, pipe fitting and valve are few, and the loss of flood peak is little, and overall cost is low, and less to the normal work influence of system, operating efficiency is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the orthogonal view of the embodiment of the present invention 1 filter core in filtration condition.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B profile of Fig. 1.
Fig. 4 is the C-C profile of Fig. 1.
Fig. 5 is the D-D profile of Fig. 1.
Fig. 6 is the orthogonal view of the embodiment of the present invention 1 filter core in backwash state.
Fig. 7 is the E-E profile of Fig. 5.
Fig. 8 is the orthogonal view of the embodiment of the present invention 2 filter cores in filtration condition.
Fig. 9 is the F-F profile of Fig. 7.
In figure, 1. blow-off pipe 2. intake antrum 3. blowoff valve I 4. filter chamber 5. shell 6. filter core I 7. inlet pressure measuring equipment 8. water inlet pipe 9. outlet pressure measuring equipment 10. outlet pipe 11. sewage draining exit pressure measurement devices.
The specific embodiment
embodiment 1:
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4.Reverse flushing filter screen filter, is made up of blow-off pipe 1, intake antrum 2,3 blowoff valves 3, filter chambers 4; Described intake antrum 2 is hollow cylinder, is provided with water inlet pipe 8 on intake antrum 2, and inlet pressure gauge 7 is set on water inlet pipe 8, and 3 circular holes are opened in intake antrum 2 bottom surfaces, and 3 circular holes are that even circumferential distributes along the center of intake antrum 1; Described filter chamber 4 is made up of 5 and 3 cylindrical filter cores 6 of cylinder blanket, the import that shell 5 end faces are opened 3 filter cores 6; Described 3 circular holes are connected with the import of 3 filter cores 6 respectively by 3 blowoff valves 3, and described blowoff valve 3 is manual three-way valve, is located between intake antrum 2 and filter chamber 4; On shell 5, be provided with outlet pipe 10, delivery gauge 9 is set on outlet pipe 10, shell 5 bottom surfaces are by filter core 6 tail end sealings; Described blow-off pipe 1 is from intake antrum 2 outsides, arrive filter chamber 4 bottom surfaces by center through end face and the bottom surface of intake antrum 2, one end that blow-off pipe 1 is positioned at outside intake antrum 2 is sewage draining exit, one end that blow-off pipe 1 contacts with filter chamber 4 end faces is blind end, 3 limbers are offered respectively as sewage import in the position corresponding with 3 blowoff valves 3, blow-off pipe 1 side, 3 limbers are communicated with 3 blowoff valves 3 respectively, and sewage draining exit Pressure gauge 11 is set on blow-off pipe 1.
With reference to Fig. 1, water inlet pipe 8 is positioned on the side circumference of intake antrum 1, and outlet pipe 10 is positioned on the side circumference of shell 5.
With reference to Fig. 1, Fig. 3, when filter work, all filter cores are all in filtration condition.With reference to Fig. 5, Fig. 6, when Filter Back Washing, only have a filter core in backwash state, other filter core is in filtration condition.
Specific works process: when the work of reverse flushing filter screen filter (with reference to Fig. 1, Fig. 3), blowoff valve 3 is communicated with intake antrum 2 and filter core 6 imports, cuts out the passage of filter core 6 imports and sewage import, and filter core 6 is in filtration condition.Now, source water enters filter core 6 and filters, and the clear water after filtration comes together between filter core 6 and shell 5, exports by outlet pipe 10.Along with the increase of filtration time, the accumulation gradually of screen wall and filter core inside, increases inlet pressure gauge 7 and the difference of delivery gauge 9 gradually.In the time that inlet pressure gauge 7 and the difference of delivery gauge 9 reach design higher limit, by manual blowdown valve 3 90-degree rotations (with reference to Fig. 5, Fig. 6), just close intake antrum 2 and filter core 6 intake channels, open the passage of filter core 6 imports and sewage import, filter core 6 is in backwash state.Now, the sewage of filter core 6 inside through filter core import, by blowoff valve 3, entered in blow-off pipe 1 by sewage import, is finally discharged by blow-off pipe 1.Along with filter screen cleans up gradually, the interior flow of blow-off pipe 1 increases, hydraulic pressure increases, and when the pressure of sewage draining exit Pressure gauge 11 reaches, design is upper prescribes a time limit, and manual blowdown valve 3 is counter-rotated to 90 degree, and filter core 6 returns to duty.
embodiment 2:
With reference to Fig. 8, Fig. 9.Reverse flushing filter screen filter, is made up of blow-off pipe 1, intake antrum 2,3 blowoff valves 3, filter chambers 4; Described intake antrum 2 is hollow cylinder, is provided with water inlet pipe 8 on intake antrum 2, and inlet pressure sensor 7 is set on water inlet pipe 8, and 3 circular holes are opened in intake antrum 2 bottom surfaces, and 3 circular holes are that even circumferential distributes along the center of intake antrum 1; Described filter chamber 4 is made up of 5 and 3 cylindrical filter cores 6 of cylinder blanket, the import that shell 5 end faces are opened 3 filter cores 6; Described 3 circular holes are connected with the import of 3 filter cores 6 respectively by 3 blowoff valves 3, and described blowoff valve 3 is 3 automatic tee valves, is located between intake antrum 2 and filter chamber 4; On shell 5, be provided with outlet pipe 10, outlet pressure sensor 9 is set on outlet pipe 10, shell 5 bottom surfaces are by filter core 6 tail end sealings; Described blow-off pipe 1 is from intake antrum 2 outsides, arrive filter chamber 4 bottom surfaces by center through end face and the bottom surface of intake antrum 2, one end that blow-off pipe 1 is positioned at outside intake antrum 2 is sewage draining exit, one end that blow-off pipe 1 contacts with filter chamber 4 end faces is blind end, 3 limbers are offered respectively as sewage import in the position corresponding with 3 blowoff valves 3, blow-off pipe 1 side, 3 limbers are communicated with 3 blowoff valves 3 respectively, and sewage draining exit pressure sensor 11 is set on blow-off pipe 1.
With reference to Fig. 1, water inlet pipe 8 is positioned at the side of intake antrum 1, and outlet pipe 10 is positioned at the bottom surface of shell 5.
Specific works process: when the work of reverse flushing filter screen filter (with reference to Fig. 1, Fig. 3), blowoff valve 3 is communicated with intake antrum 2 and filter core 6 imports, cuts out the passage of filter core 6 imports and sewage import, and filter core 6 is in filtration condition.Now, source water enters filter core 6 and filters, and the clear water after filtration comes together between filter core 6 and shell 5, exports by outlet pipe 10.Along with the increase of filtration time, the accumulation gradually of screen wall and filter core inside, increases inlet pressure sensor 7 and the difference of outlet pressure sensor 9 gradually.In the time that inlet pressure sensor 7 and the difference of outlet pressure sensor 9 reach design higher limit, automatic controller starts automatic blowdown valve 3, make it 90-degree rotation (with reference to Fig. 5, Fig. 6), just close intake antrum 2 and filter core 6 intake channels, the passage of opening filter core 6 imports and sewage import, filter core 6 is in backwash state.Now, the sewage of filter core 6 inside through filter core import, by blowoff valve 3, entered in blow-off pipe 1 by sewage import, is finally discharged by blow-off pipe 1.Along with filter screen cleans up gradually, the interior flow of blow-off pipe 1 increases, hydraulic pressure increases, and when the pressure of sewage draining exit pressure sensor 11 reaches, design is upper prescribes a time limit, and automatic controller starts automatic blowdown valve 3, makes it to counter-rotate 90 degree, and filter core 6 returns to duty.
Structure and the principle of reverse flushing filter screen filter of the present invention fully disclose by embodiment, but described embodiment is not in order to limit the present invention, under the prerequisite that does not depart from spirit of the present invention or essential characteristic, also can there is other embodiment, in the time showing scope of the present invention, should be with reference to appending claims, rather than aforesaid explanation.
Claims (7)
1. a reverse flushing filter screen filter, is made up of blow-off pipe (1), intake antrum (2), several blowoff valves (3), filter chamber (4), described intake antrum (2) is hollow cylinder, on intake antrum (2), be provided with water inlet pipe (8), inlet pressure measuring equipment (7) is set on water inlet pipe (8), and more than 2 circular hole is opened in intake antrum (2) bottom surface, and more than 2 circular hole is that even circumferential distributes along the center of intake antrum (1), described filter chamber (4) is made up of cylinder blanket (5) and 2 above cylindrical filter cores (6), and shell (5) end face is opened 2 imports with upper filter (6), described more than 2 circular hole is connected with 2 imports with upper filter (6) respectively with scum valve (3) by 2, and described blowoff valve (3) is triple valve, is located between intake antrum (2) and filter chamber (4), on shell (5), be provided with outlet pipe (10), set out mouth pressure measuring equipment (9) on outlet pipe (10), filter core (6) tail end is sealed in shell (5) bottom surface, described blow-off pipe (1) is from intake antrum (2) outside, arrive filter chamber (4) bottom surface by center through end face and the bottom surface of intake antrum (2), one end that blow-off pipe (1) is positioned at outside intake antrum (2) is sewage draining exit, blow-off pipe (1) is blind end with one end that filter chamber (4) end face contacts, more than 2 limber is offered respectively as sewage import with 2 using the corresponding position of scum valve (3) in blow-off pipe (1) side, more than 2 limber is communicated with scum valve (3) with 2 respectively, sewage draining exit pressure measurement device (11) is set on blow-off pipe (1), the quantity of the circular hole of described intake antrum (2) bottom surface, limber, blowoff valve (3) is identical with the quantity of filter core (6), in the time that blowoff valve (3) is communicated with intake antrum (2) with filter core (6) import, just close the passage of filter core (6) import and sewage import, filter core (6) is in filtration condition, by after blowoff valve (3) 90-degree rotation, just close intake antrum (2) and filter core (6) intake channel, open the passage of filter core (6) import and sewage import, filter core (6) is in backwash state, when filter work, all filter cores are all in filtration condition, when Filter Back Washing, only have a filter core in backwash state, other filter core is in filtration condition.
2. a kind of reverse flushing filter screen filter according to claim 1, is characterized in that, described water inlet pipe (8) is located on the side wall surface circumference of intake antrum (2), and outlet pipe (10) is located on the sidewall circumference of shell (5).
3. a kind of reverse flushing filter screen filter according to claim 1, is characterized in that, described water inlet pipe (8) is located on the sidewall circumference of intake antrum (2), and outlet pipe (10) is located on the bottom surface of shell (5).
4. according to a kind of reverse flushing filter screen filter described in claim 1,2 or 3, it is characterized in that, the quantity of described blowoff valve (3), filter core (6) is 2-12.
5. according to a kind of reverse flushing filter screen filter described in claim 1,2 or 3, it is characterized in that, the quantity of described blowoff valve (3), filter core (6) is three.
6. according to a kind of reverse flushing filter screen filter described in claim 1,2 or 3, it is characterized in that, described blowoff valve (3) is manual three-way valve, and inlet pressure measuring equipment (7), outlet pressure measuring equipment (9) and sewage draining exit pressure measurement device (11) are Pressure gauge.
7. according to a kind of reverse flushing filter screen filter described in claim 1,2 or 3, it is characterized in that, described blowoff valve (3) is automatic tee valve, and inlet pressure measuring equipment (7), outlet pressure measuring equipment (9) and sewage draining exit pressure measurement device (11) are pressure sensor; Described reverse flushing filter screen filter is provided with automatic controller monitoring pressure sensor, and the rotation of control of sewage disposal valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310592750.8A CN103785209B (en) | 2013-11-22 | 2013-11-22 | A kind of reverse flushing filter screen filter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310592750.8A CN103785209B (en) | 2013-11-22 | 2013-11-22 | A kind of reverse flushing filter screen filter |
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| CN103785209A true CN103785209A (en) | 2014-05-14 |
| CN103785209B CN103785209B (en) | 2015-08-05 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536323A (en) * | 2016-02-26 | 2016-05-04 | 江苏大学 | Automatic back-flush mesh filter |
| CN106237683A (en) * | 2016-08-23 | 2016-12-21 | 张萍 | A kind of defecator with efficient backwashing function for air water machine |
| CN107497157A (en) * | 2017-07-24 | 2017-12-22 | 宿州溪亿林农业发展有限公司 | A kind of backwash filter for drip irrigation system |
| CN107715539A (en) * | 2017-11-13 | 2018-02-23 | 佛山市恒爱网络科技有限公司 | Automatic backwashing filter |
| CN108025236A (en) * | 2015-08-31 | 2018-05-11 | Gea机械设备有限公司 | Method for filtering sea aboard ship |
| CN108953166A (en) * | 2018-07-27 | 2018-12-07 | 上海长征泵阀（集团）有限公司 | A kind of backwash energy-saving pump system |
| CN109091943A (en) * | 2017-06-20 | 2018-12-28 | 芜湖美的厨卫电器制造有限公司 | Purifier and water heater |
| CN111547897A (en) * | 2020-06-10 | 2020-08-18 | 重庆丛贤环保科技有限公司 | Unpowered sieve type solid-liquid separator and control method thereof |
| CN117797547A (en) * | 2024-01-19 | 2024-04-02 | 艾尔科工程技术有限公司 | Filter with self-cleaning function |
| CN118479691A (en) * | 2024-07-10 | 2024-08-13 | 四川水思源环境科技有限公司 | Water-saving hemodialysis water preparation facilities |
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| JP2005230779A (en) * | 2004-02-23 | 2005-09-02 | Kurimoto Ltd | Strainer apparatus |
| CN2875558Y (en) * | 2006-03-17 | 2007-03-07 | 新疆天业（集团）有限公司 | Horizontal automatic back flushing screen net filter |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015114473B4 (en) | 2015-08-31 | 2022-02-10 | Gea Mechanical Equipment Gmbh | Process for filtration of sea water on board a ship |
| CN108025236A (en) * | 2015-08-31 | 2018-05-11 | Gea机械设备有限公司 | Method for filtering sea aboard ship |
| CN105536323A (en) * | 2016-02-26 | 2016-05-04 | 江苏大学 | Automatic back-flush mesh filter |
| CN106237683A (en) * | 2016-08-23 | 2016-12-21 | 张萍 | A kind of defecator with efficient backwashing function for air water machine |
| CN106237683B (en) * | 2016-08-23 | 2019-02-15 | 九章膜(北京)科技有限公司 | A kind of filter device with efficient backwashing function for air water machine |
| CN109091943A (en) * | 2017-06-20 | 2018-12-28 | 芜湖美的厨卫电器制造有限公司 | Purifier and water heater |
| CN109091943B (en) * | 2017-06-20 | 2024-02-23 | 芜湖美的厨卫电器制造有限公司 | Water purifying device and water heater |
| CN107497157A (en) * | 2017-07-24 | 2017-12-22 | 宿州溪亿林农业发展有限公司 | A kind of backwash filter for drip irrigation system |
| CN107715539A (en) * | 2017-11-13 | 2018-02-23 | 佛山市恒爱网络科技有限公司 | Automatic backwashing filter |
| CN108953166A (en) * | 2018-07-27 | 2018-12-07 | 上海长征泵阀（集团）有限公司 | A kind of backwash energy-saving pump system |
| CN108953166B (en) * | 2018-07-27 | 2023-11-17 | 上海长征泵阀（集团）有限公司 | Backwashing energy-saving pump system |
| CN111547897A (en) * | 2020-06-10 | 2020-08-18 | 重庆丛贤环保科技有限公司 | Unpowered sieve type solid-liquid separator and control method thereof |
| CN117797547A (en) * | 2024-01-19 | 2024-04-02 | 艾尔科工程技术有限公司 | Filter with self-cleaning function |
| CN118479691A (en) * | 2024-07-10 | 2024-08-13 | 四川水思源环境科技有限公司 | Water-saving hemodialysis water preparation facilities |
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