CN112999722B - Self-cleaning filter with rotary spray head - Google Patents
Self-cleaning filter with rotary spray head Download PDFInfo
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- CN112999722B CN112999722B CN202110266667.6A CN202110266667A CN112999722B CN 112999722 B CN112999722 B CN 112999722B CN 202110266667 A CN202110266667 A CN 202110266667A CN 112999722 B CN112999722 B CN 112999722B
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- joint
- pipe
- self
- cleaning
- rotary
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- 238000004140 cleaning Methods 0.000 title claims abstract description 52
- 239000007921 spray Substances 0.000 title claims abstract description 38
- 238000005070 sampling Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000011010 flushing procedure Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 17
- 238000010408 sweeping Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a self-cleaning filter of a rotary nozzle, which comprises an upper joint, a through pipe, a lower joint, a sampling pipe, a threaded movable joint cover and a quick-connection rotary nozzle, wherein the upper part of the through pipe is hermetically connected with the upper joint, the upper side of the center of the upper joint is connected with a water inlet pipeline, the lower side of the center of the upper joint is connected with the quick-connection rotary nozzle, the quick-connection rotary nozzle is arranged in the through pipe, the lower part of the quick-connection rotary nozzle is provided with the lower movable joint, the lower movable joint is used as a sample water inlet or a back-flushing cleaning water outlet, the threaded movable joint cover is sleeved outside the lower movable joint and is hermetically connected with the lower side of the through pipe, and the sampling pipe is connected with the lower part of the side edge of the upper joint and is arranged in the through pipe. The invention utilizes the pressure of water to drive the cleaning spray head to rotate, the front end of the spray head forms jet flow and rotates to sweep and flush the filter screen, and through the control of cleaning flow, compressed air of the air compressor is added into the cleaning water flow in a pulse mode to form pulse type high-pressure sweeping and flushing water flow, thereby solving the self-cleaning problem of the integral filter surface of the filter screen.
Description
Technical Field
The invention relates to the field of self-cleaning filters, in particular to a self-cleaning filter of a rotary spray head.
Background
The precision filter used in the field of online water quality monitoring is complex, each equipment provider has a set of water quality sampling pretreatment system, the flow, the filter structure, the filter screen or the filter material and the cleaning mode adopted by the precision filtering water sample are respectively characterized, but the filtering precision is not high on the whole, the cleaning effect of the filter screen or the filter is not ideal, the long-term effective work of the precision filter cannot be guaranteed by self-cleaning, and the long-term effective work of the precision filter depends on regular manual cleaning and maintenance.
At present, stainless steel screens, ceramic filters, metal powder sintered filters and the like are generally adopted as the screens or filters of the precision filters. The cleaning of the screens or filters is generally by means of a reverse cleaning with tap water and compressed air. The cleaning is to add tap water and air to the water outlet surface of the filter screen or the filter integrally, and the reverse cleaning force is formed on the water outlet surface of the filter screen or the filter completely by pressure, so that impurities on the filter screen or the filter are washed away. When the filter screen or the filter is partially cleaned, the pressure difference between the inlet side and the outlet side of the filter screen or the filter is greatly reduced, the reverse cleaning acting force on the filter screen is lost, and most of the filtering area of the filter screen or the filter cannot be effectively cleaned.
That is to say, structural design and self-cleaning function of the precision filter applied to water quality on-line monitoring at present can not realize comprehensive effective cleaning of a filter screen or a filter filtering surface, can not ensure that an effective filtering area is recovered after the precision filter is cleaned, the existing precision filter has great defects and safety risks in practical application, sample supply failure can often occur, some systems can not remove the precision filter to ensure that sample supply is normal, measurement data can be interfered, invalid data can often occur, and invalid data can only be removed.
The failure time of the existing precision filter is prolonged by increasing the filtering area or reducing the filtering precision, and the normal use of the precision filter is ensured by regular manual cleaning and maintenance. Even so, the precision filtration precision which can be realized at present can only be 300 meshes to 600 meshes, and the use in oily or viscous water quality environment is more difficult.
The quality of the structure function of the precision filter is related to the effectiveness of on-line monitoring data and is also a safety guarantee for the normal work of an analytical instrument, so that a precision filter capable of working stably for a long time is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a self-cleaning filter of a rotary spray head, which solves the problem of performing precise filtration on an analyzed water sample in online water quality monitoring application.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-cleaning filter of a rotary nozzle, which comprises an upper joint, a through pipe, a lower joint, a sampling pipe, a threaded loose joint cover, a rotary quick joint and the rotary nozzle, the rotary quick-connection joint and the rotary spray head are spliced into a quick-connection rotary spray head which is arranged in the through pipe, the upper part of the through pipe is hermetically connected with an upper joint, the upper side of the center of the upper joint is connected with a water inlet and air inlet pipeline, the lower side of the center of the upper joint is rotatably connected with the rotary quick joint to form a passage, a lower movable joint is arranged below the quick-joint rotary spray head and is used as a sample water inlet or a back-flushing cleaning water outlet, a threaded movable joint cover is sleeved outside the lower movable joint and is hermetically connected with the lower side of the through pipe, the sampling tube is connected with the lower part of the side edge of the upper joint and arranged in the through pipe, and the upper joint is communicated with water and compressed air to drive the rotary quick-joint to rotate through the rotary spray head.
Further, the sampling tube is connected with the upper joint through threads or is bonded with the upper joint.
Furthermore, the bottom surface of the rotary spray head is provided with asymmetrical spray holes which are arranged in a row.
Furthermore, tangential nozzles are arranged on two sides of the bottom of the rotary spray head, and the tangential directions are opposite.
Further, two tangential nozzles are communicated with each other.
Further, the top connection is provided with a sampling port communicated with a sampling tube, and the bottom of the sampling tube is arranged at the lower part of the through tube
Further, the through pipe is a Tongming acrylic pipe.
Further, a sealing ring is arranged between the through pipe and the upper joint in a cushioning mode, and the sealing ring is 0-shaped.
Furthermore, a detachable filter screen is arranged on the upper side of the lower movable joint.
Furthermore, a sealing flat gasket is arranged between the thread loose joint cover and the through pipe.
By adopting the technical scheme of the invention, the invention has the beneficial effects that: the invention utilizes the pressure of water to drive the cleaning spray head to rotate, the front end of the spray head forms jet flow and rotates to sweep and flush the filter screen, and through the control of cleaning flow, compressed air of the air compressor is added into the cleaning water flow in a pulse mode to form pulse type high-pressure sweeping and flushing water flow, thereby solving the self-cleaning problem of the integral filter surface of the filter screen. The self-cleaning filter can be cleaned by self cleaning under the condition that a filter screen with the precision of 1000 meshes is in a severe water quality environment, and can be stably used for a long time under the condition of certain viscosity and oily water quality.
Drawings
FIG. 1 is a schematic diagram of a spin-head self-cleaning filter according to the present invention;
FIG. 2 is a view of the internal structure of a spin-head self-cleaning filter according to the present invention;
FIG. 3 is a structural view of a rotary sprayer provided by the present invention;
fig. 4 is an internal structure view of the rotary nozzle according to the present invention.
The device comprises a sampling pipe, a tangential nozzle, a sealing flat gasket, a spray washing hole, a sampling port, a sealing ring, a rotary quick connector, a rotary spray head, a thread loose joint cover, a lower loose joint cover, a sealing ring, a sealing flat gasket, a pipe, a sampling pipe, a tangential nozzle, a spraying hole, a sampling port and a sampling hole, wherein the sampling pipe comprises 1, an upper joint, 2, the sealing ring, 3, the rotary quick connector, 4, the rotary spray head, 5, the thread loose joint cover, 6, the lower loose joint, 7, the filtering net, 8, the sealing flat gasket, 9, the through pipe, 10, the sampling pipe, 11, the tangential nozzle, 12, the spray washing hole, 13 and the sampling port.
Detailed Description
Specific embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in the figure, a rotatory nozzle 4 self-cleaning filter, including top connection 1, siphunculus 9, lower clutch, sampling tube 10, screw thread loose joint lid 5 and meet rotatory nozzle 4 soon, siphunculus 9 top and top connection 1 sealing connection, the upside and the intake pipe connection of intaking of 1 central authorities of top connection, the downside and the quick rotatory nozzle 4 that connects of 1 central authorities of top connection are connected, in the siphunculus 9 was located to quick connect rotatory nozzle 4, quick connect 4 below of rotatory nozzle to be equipped with down loose joint 6, lower loose joint 6 is used for washing the outlet for appearance water inlet or blowback, and screw thread loose joint lid 5 covers establishes in the loose joint 6 outside down and with siphunculus 9 downside sealing connection.
The through pipe 9 is a Tongming acrylic pipe, so that the internal sampling and cleaning conditions can be observed conveniently.
The upper side of the lower movable joint 6 is provided with a filter screen 7, so that impurities are prevented from entering.
The quick-connection rotary sprayer 4 comprises a rotary quick-connection joint 3 and a rotary sprayer 4, the rotary sprayer 4 is connected with the rotary quick-connection joint 3 in an inserting mode, the rotary quick-connection joint 3 is rotatably connected to the lower side of the center of the upper joint 1 and forms a passage, and the upper joint 1 is communicated with water and compressed air and drives the rotary quick-connection joint 3 to rotate through the rotary sprayer 4.
The bottom surface of the rotary spray head 4 is provided with asymmetrical spray holes 12, and the spray holes 12 are arranged in a row. Tangential nozzles 11 are arranged on two sides of the bottom of the rotary spray head 4, and the tangential directions are opposite. Two tangential nozzles 11 are communicated with each other. The radial edges of the rotary spray head 4 are provided with two symmetrical tangential nozzles 11 which generate rotary torque under the driving of the spray kinetic energy, and a row of asymmetrical spray holes 12 form spray washing water flow to wash the filter screen 7. Connect rotatory nozzle 4 soon and can form comprehensive sweeping type to filter screen 7 and wash, this rotatory nozzle 4 self-cleaning mode is that it is simple effective to wash filter screen 7, and the cleaning performance is good.
A sealing ring 2 is arranged between the through pipe 9 and the upper joint 1 in a cushioning mode, and the sealing ring 2 is 0-shaped.
A sealing flat gasket 8 is arranged between the thread loose joint cover 5 and the through pipe 9.
Self-cleaning filters have three operating states: the method comprises the steps of filtering and sampling, backwashing and emptying, and the processes are controlled by an external electromagnetic valve.
Filtering and sampling: the lower movable joint 6 is used as a sample water inlet, a water sample with pressure enters the filter from the lower movable joint 6, the upper joint 1 is in a closed state at the moment, the emptying of the rotary quick joint 3 is closed, the water sample filtered by the filter screen 7 passes through the sampling tube 10 and enters a sampling cup of an analysis instrument from a sampling port of the sampling tube 10, and the filtering and sampling process is finished after the sampling cup is filled.
Back washing: the lower loose joint 6 is used as a blowback cleaning water outlet, and after filtering and sampling, the filter needs to be cleaned. At this point, sampling tube 10 is closed, top connection 1 is open, evacuation of rotary quick connect 3 is open, and water and pulse ram host air top connection 1 enters the filter. Under the push of water and pressure sink air pressure, the spray head drives the high-speed rotating quick-connection rotating to perform high-pressure sweeping type back flushing on the filter screen 7, and then the filter screen is discharged from the rotating quick-connection joint 3, the self-rotating spray head 4 and the lower movable connection joint 6.
Emptying: the lower movable joint 6 is used as a back flushing cleaning water outlet, water inlet is cut off after back flushing is finished, back flushing is continued by the compressed air, all residual water in the filter is discharged through the rotary quick joint 3, and then the residual water is discharged from the lower movable joint 6. Then the upper connector 1 is opened to empty the whole sampling tube 10 pipeline, and the emptying process is finished.
The rotary quick-connection joint 3 in the self-cleaning filter is an existing joint and is not a workpiece.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A self-cleaning filter of a rotary nozzle is characterized by comprising an upper joint, a through pipe, a lower joint, a sampling pipe, a threaded loose joint cover, a rotary quick joint and the rotary nozzle, the rotary quick-connection joint and the rotary spray head are spliced into a quick-connection rotary spray head which is arranged in the through pipe, the upper part of the through pipe is hermetically connected with an upper joint, the upper side of the center of the upper joint is connected with a water inlet and air inlet pipeline, the lower side of the center of the upper joint is rotatably connected with the rotary quick joint to form a passage, a lower movable joint is arranged below the quick-joint rotary spray head and is used as a sample water inlet or a back-flushing cleaning water outlet, a threaded movable joint cover is sleeved outside the lower movable joint and is hermetically connected with the lower side of the through pipe, the sampling tube is connected below the side edge of the upper joint and arranged in the through tube, and water and compressed air are introduced into the upper joint to drive the rotary quick-connection joint to rotate through the rotary spray head; the upper side of the lower movable joint is provided with a detachable filter screen and a spray hole arranged on the bottom surface of the rotary spray head.
2. The spin head self-cleaning filter of claim 1, wherein the sampling tube is threaded or bonded to the top fitting.
3. The spin head self-cleaning filter of claim 1, wherein the spin head floor is provided with asymmetric wash holes in a row.
4. The spin head self-cleaning filter of claim 1, wherein tangential nozzles are provided on opposite sides of the bottom of the spin head, and the tangential directions are opposite.
5. The spin head self-cleaning filter of claim 4, wherein two tangential nozzles are in communication.
6. The self-cleaning filter with rotating spray head of claim 1, wherein the upper joint is provided with a sampling port communicated with a sampling tube, and the bottom of the sampling tube is arranged at the lower part of the through pipe.
7. The showerhead self-cleaning filter of claim 1, wherein the through-tube is a tomayaki tube.
8. The self-cleaning filter with rotating spray head of claim 1, wherein a sealing ring is arranged between the through pipe and the upper joint in a padding way, and the sealing ring is 0 type.
9. The spin head self-cleaning filter of claim 1, wherein the lower loose joint has a removable screen on the top.
10. The self-cleaning filter with rotating spray head of claim 1, wherein a sealing flat washer is arranged between the threaded loose joint cover and the through pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266667.6A CN112999722B (en) | 2021-03-11 | 2021-03-11 | Self-cleaning filter with rotary spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266667.6A CN112999722B (en) | 2021-03-11 | 2021-03-11 | Self-cleaning filter with rotary spray head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112999722A CN112999722A (en) | 2021-06-22 |
| CN112999722B true CN112999722B (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110266667.6A Active CN112999722B (en) | 2021-03-11 | 2021-03-11 | Self-cleaning filter with rotary spray head |
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| Country | Link |
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| CN (1) | CN112999722B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979562B (en) * | 2021-11-05 | 2023-08-29 | 湖州新开元碎石有限公司 | Mud sand recycling system device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3568414A (en) * | 1969-06-05 | 1971-03-09 | Donaldson Co Inc | Cleaning apparatus for fluid filters |
| JP2004268004A (en) * | 2003-03-05 | 2004-09-30 | Hoshin Sangyo Kk | Strainer device |
| CN208893713U (en) * | 2018-09-12 | 2019-05-24 | 上海轶丞精密机械有限公司 | A kind of high-pressure jet cleaning machine |
| CN211357905U (en) * | 2019-09-17 | 2020-08-28 | 泉州科发卫浴有限公司 | Back washing mechanism of filter |
| CN111589209A (en) * | 2020-07-03 | 2020-08-28 | 沧州市新天方环保设备有限公司 | High-pressure hot water flushing filter with rotary nozzle |
| CN112426957A (en) * | 2020-12-31 | 2021-03-02 | 湖南中天元环境工程有限公司 | Heterogeneous ammoximation reaction separation device and method |
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| CN112999722A (en) | 2021-06-22 |
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