CN112546712A - Automatic dirt removing device for water supply equipment - Google Patents
Automatic dirt removing device for water supply equipment Download PDFInfo
- Publication number
- CN112546712A CN112546712A CN202011438265.1A CN202011438265A CN112546712A CN 112546712 A CN112546712 A CN 112546712A CN 202011438265 A CN202011438265 A CN 202011438265A CN 112546712 A CN112546712 A CN 112546712A
- Authority
- CN
- China
- Prior art keywords
- filtering bin
- solenoid valve
- water supply
- box body
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000001914 filtration Methods 0.000 claims abstract description 61
- 239000002184 metal Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 16
- 239000010865 sewage Substances 0.000 description 8
- 238000005202 decontamination Methods 0.000 description 4
- 230000003588 decontaminative effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/30—Filter housing constructions
- B01D2201/309—Housings with transparent parts
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses an automatic dirt cleaning device for water supply equipment, which comprises a box body, wherein a filtering bin A and a filtering bin B are symmetrically arranged at the middle position in the box body, the tops of the filtering bin A and the filtering bin B are jointly provided with a water outlet three-way pipe, the water outlet three-way pipe extends to the top of the box body, the bottoms of the filtering bin A and the filtering bin B are respectively provided with a solenoid valve C and a solenoid valve D, the bottoms of the solenoid valve C and the solenoid valve D are jointly provided with a water inlet three-way pipe, the water inlet three-way pipe extends to the bottom of the box body, and the tops in the filtering bin A and the filtering bin B are both provided with a spring A; according to the invention, through the mutual cooperation of the electromagnetic valve C, the electromagnetic valve D, the filtering bin A, the spring A, the filtering bin B and the filter element, the automatic dirt cleaning function of the water supply equipment is realized, so that manual replacement and cleaning are saved, and convenience is brought to use.
Description
Technical Field
The invention relates to the technical field of water supply equipment, in particular to an automatic dirt cleaning device for water supply equipment.
Background
A water supply device: the automatic start-stop water supply device capable of outputting a certain flow and a certain lift in unit time is divided into the following parts according to purposes: fire control, life, production and sewage treatment.
The existing water supply equipment is various, but still has more obvious problems: 1. the existing water supply equipment can filter a water source when in use, usually manual replacement and cleaning are carried out, which is troublesome and laborious, so that a structural device capable of automatically cleaning dirt is needed; 2. when the existing water supply equipment is used, water is cut off for cleaning, so that the influence is generated on domestic water, and a structural device which can not cut off water is needed; 3. the existing decontamination structure is easy to generate secondary pollution in the decontamination process, so a structural device capable of avoiding the secondary pollution is needed.
Disclosure of Invention
The invention aims to provide an automatic dirt cleaning device for water supply equipment, which aims to solve the problems that the prior water supply equipment in the background art is diversified, but still has obvious problems: the existing water supply equipment can filter a water source when in use, usually manual replacement and cleaning are carried out, which is troublesome and laborious, so that a structural device capable of automatically cleaning dirt is needed; when the existing water supply equipment is used, water is cut off for cleaning, so that the influence is generated on domestic water, and a structural device which can not cut off water is needed; the existing decontamination structure is easy to generate secondary pollution in the decontamination process, so that a structural device capable of avoiding the secondary pollution is needed.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic dirt cleaning device for water supply equipment comprises a box body, wherein a filtering bin A and a filtering bin B are symmetrically arranged at the middle position inside the box body, a water outlet three-way pipe is jointly arranged at the tops of the filtering bin A and the filtering bin B, the water outlet three-way pipe extends to the top of the box body, the bottoms of the filtering bin A and the filtering bin B are respectively provided with a solenoid valve C and a solenoid valve D, the bottoms of the solenoid valve C and the solenoid valve D are jointly provided with a water inlet three-way pipe, the water inlet three-way pipe extends to the bottom of the box body, the tops inside the filtering bin A and the filtering bin B are respectively provided with a spring A, the bottom of the spring A is provided with a filter element, the bottom of the filter element is provided with a spring B, the bottom of the spring B is provided with a metal ball, one side of the filtering bin A, which is far away from the filtering bin B, is respectively provided with a drain pipe A and a drain pipe B, the outside of blow off pipe A is provided with solenoid valve A, the outside of blow off pipe B is provided with solenoid valve B, the top of the positive one end of box is provided with control panel, control panel passes through the wire and is connected with solenoid valve A, solenoid valve B, solenoid valve C and solenoid valve D electricity respectively.
Preferably, two ends of the bottom of the baffle are provided with limiting blocks.
Preferably, the front end of the box body is provided with an access panel, and the edge position of the access panel is provided with a sealing strip.
Preferably, the bottom of the interior of the filter bin A and the bottom of the interior of the filter bin B are both provided with grooves, and the grooves are matched with the metal balls.
Preferably, the outer sides of the filtering bin A and the filtering bin B are both provided with mounting brackets.
Preferably, a support plate is arranged between the filter element and the spring B, and a round hole is formed in the middle of the support plate.
Preferably, through holes are uniformly formed in the baffle.
Compared with the prior art, the invention has the beneficial effects that: the automatic dirt removing device for the water supply equipment can realize automatic dirt removing, so that the labor and the time are saved, and the dirt can be removed without stopping water, so that the practicability of the device is improved;
1. through the mutual matching of the electromagnetic valve C, the electromagnetic valve D, the filtering bin A, the spring A, the filtering bin B and the filter element, the automatic cleaning function of the water supply equipment is realized, so that the manual replacement and cleaning are saved, and the convenience is provided for the use;
2. through the mutual matching of the electromagnetic valve A, the electromagnetic valve B, the electromagnetic valve C and the electromagnetic valve D, the direction of water inlet filtration is changed, so that the function of cleaning sewage without stopping water is realized, the normal water use of residents is ensured, and convenience is brought to water use;
3. through being provided with metal ball, spring B in the inside of filtering storehouse A and filtering storehouse B to realized the sealed to the water inlet, thereby avoided the blowdown in-process to produce secondary pollution, guaranteed the security of resident's water.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the structure at A of FIG. 2 according to the present invention;
fig. 4 is an enlarged view of the structure at B of fig. 2 according to the present invention.
In the figure: 1. a box body; 2. a water inlet three-way pipe; 3. an electromagnetic valve A; 4. a sewage discharge pipe A; 5. a water outlet three-way pipe; 6. a control panel; 7. a sewage discharge pipe B; 8. a solenoid valve B; 9. a solenoid valve C; 10. a filtering bin A; 11. a spring A; 12. a filtering bin B; 13. a filter element; 14. a solenoid valve D; 15. a metal ball; 16. a spring B; 17. and a baffle plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1-4, the present invention provides an embodiment: an automatic sewage disposal device for water supply equipment comprises a box body 1, wherein a filtering bin A10 and a filtering bin B12 are symmetrically arranged at the middle position inside the box body 1, the tops of the filtering bin A10 and the filtering bin B12 are provided with a water outlet three-way pipe 5 together, the water outlet three-way pipe 5 extends to the top of the box body 1, the bottoms of the filtering bin A10 and the filtering bin B12 are provided with a solenoid valve C9 and a solenoid valve D14 respectively, the bottoms of the solenoid valve C9 and the solenoid valve D14 are provided with a water inlet three-way pipe 2 together, the water inlet three-way pipe 2 extends to the bottom of the box body 1, the tops inside the filtering bin A10 and the filtering bin B12 are provided with a spring A11, the bottom of the spring A11 is provided with a baffle 17, the middle positions inside the filtering bin A10 and the filtering bin B12 are provided with a filter element 13, the bottom of the filter element 13 is provided with a spring B16, the bottom of the spring B16 is provided with a metal ball 15, a sewage discharge pipe 4 and a sewage discharge pipe, the outside of blow off pipe A4 is provided with solenoid valve A3, and the outside of blow off pipe B7 is provided with solenoid valve B8, and the top of the positive one end of box 1 is provided with control panel 6, and control panel 6 passes through the wire and is connected with solenoid valve A3, solenoid valve B8, solenoid valve C9 and solenoid valve D14 electricity respectively.
The electromagnetic valve A3, the electromagnetic valve B8, the electromagnetic valve C9 and the electromagnetic valve D14 in the device are the prior art, and the composition structure and the connection mode of the device are completely the same as those of the prior device.
Furthermore, the two ends of the bottom of the baffle 17 are provided with limiting blocks for limiting the position of the baffle 17, so that the normal flow of water flow is ensured.
Further, the front one end of box 1 is provided with the access panel, and the border position department of access panel is provided with the sealing strip, conveniently overhauls the device to prevent that external dust from getting into in the device.
Further, the bottom of filtering storehouse A10 and the inside bottom of filtering storehouse B12 all is provided with the recess, and recess and metal ball 15 adaptation each other for metal ball 15 laminates with filtering storehouse A10 bottom more, prevents secondary pollution.
Further, the outer sides of the filter bin A10 and the filter bin B12 are both provided with mounting brackets for supporting the device and preventing the device from displacing.
Further, be provided with the backup pad between filter core 13 and the spring B16, and seted up the round hole in the middle of the backup pad, provide the holding power for spring B16 to guarantee that rivers normally flow.
Further, the inside of baffle 17 evenly is provided with the through-hole, can slow down the pressure of rivers.
The working principle is as follows: the device supplies power to the device through an external power supply and is controlled through a control panel 6 when in use, a water source enters through a water inlet three-way pipe 2, at the moment, an electromagnetic valve C9 is closed and an electromagnetic valve D14 is opened, an electromagnetic valve B8 is closed and an electromagnetic valve A3 is opened, so that the water source enters into a filtering bin B12 through an electromagnetic valve D14, further a metal ball 15 is pushed to extrude a spring B16 and is filtered through a filter element 13, a baffle 17 is extruded again and is discharged from the top of the filtering bin B12 to enter into the inside of a water outlet three-way pipe 5, at the moment, the water flow is divided into two paths, one path of water flow enters into a user home from the water outlet three-way pipe 5, the other path of water flow enters into the inside of the filtering bin A10 through the water outlet three-way pipe 5, further impurities filtered by a filter element 13 are washed downwards and are discharged from the position of a sewage discharge pipe, prevent secondary pollution's production, when the trash removal finishes, close solenoid valve A3 this moment, and then normally supply water, when needs are to filter storehouse B12 inside when cleaning, close solenoid valve D14 and open solenoid valve C9 on the same principle, and open solenoid valve B8, the water source gets into and filters storehouse A10 inside and then supplies water this moment, and wash the inside impurity of filter storehouse B12 and discharge from blow off pipe B7 department, supply water through filtering in turn between storehouse A10 and the filter storehouse B12, thereby realized the function of continuous row's of water pollution, the practicality of device has been improved, make things convenient for the resident to use water.
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 (7)
1. The utility model provides an automatic device of decontaminating for water supply equipment, includes box (1), its characterized in that: the water purifier is characterized in that a filtering bin A (10) and a filtering bin B (12) are symmetrically arranged in the middle of the interior of the box body (1), a water outlet three-way pipe (5) is jointly arranged at the tops of the filtering bin A (10) and the filtering bin B (12), the water outlet three-way pipe (5) extends to the top of the box body (1), an electromagnetic valve C (9) and an electromagnetic valve D (14) are respectively arranged at the bottoms of the filtering bin A (10) and the filtering bin B (12), a water inlet three-way pipe (2) is jointly arranged at the bottoms of the electromagnetic valve C (9) and the electromagnetic valve D (14), the water inlet three-way pipe (2) extends to the bottom of the box body (1), springs A (11) are arranged at the tops of the interior of the filtering bin A (10) and the interior of the filtering bin B (12), a baffle plate (17) is arranged at the bottom of the spring A (11), and filter elements (13) are arranged in the middle of the interior of the filtering bin, the bottom of filter core (13) is provided with spring B (16), the bottom of spring B (16) is provided with metal ball (15), the one side of keeping away from each other of filtration storehouse A (10) and filtration storehouse B (12) is provided with blow off pipe A (4) and blow off pipe B (7) respectively, the outside of blow off pipe A (4) is provided with solenoid valve A (3), the outside of blow off pipe B (7) is provided with solenoid valve B (8), the top of the positive one end of box (1) is provided with control panel (6), control panel (6) are connected with solenoid valve A (3), solenoid valve B (8), solenoid valve C (9) and solenoid valve D (14) electricity respectively through the wire.
2. The automatic decontaminating apparatus for a water supply facility, according to claim 1, wherein: and limiting blocks are arranged at two ends of the bottom of the baffle (17).
3. The automatic decontaminating apparatus for a water supply facility, according to claim 1, wherein: the box body (1) is characterized in that an access panel is arranged at one end of the front side of the box body (1), and a sealing strip is arranged at the edge position of the access panel.
4. The automatic decontaminating apparatus for a water supply facility, according to claim 1, wherein: the bottom of the interior of the filtering bin A (10) and the bottom of the interior of the filtering bin B (12) are both provided with grooves, and the grooves are matched with the metal balls (15) mutually.
5. The automatic decontaminating apparatus for a water supply facility, according to claim 1, wherein: and mounting brackets are arranged on the outer sides of the filtering bin A (10) and the filtering bin B (12).
6. The automatic decontaminating apparatus for a water supply facility, according to claim 1, wherein: a support plate is arranged between the filter element (13) and the spring B (16), and a round hole is formed in the middle of the support plate.
7. The automatic decontaminating apparatus for a water supply facility, according to claim 1, wherein: through holes are uniformly formed in the baffle (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011438265.1A CN112546712A (en) | 2020-12-07 | 2020-12-07 | Automatic dirt removing device for water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011438265.1A CN112546712A (en) | 2020-12-07 | 2020-12-07 | Automatic dirt removing device for water supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112546712A true CN112546712A (en) | 2021-03-26 |
Family
ID=75060476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011438265.1A Withdrawn CN112546712A (en) | 2020-12-07 | 2020-12-07 | Automatic dirt removing device for water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112546712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774996A (en) * | 2021-09-22 | 2021-12-10 | 广州全一泵业有限公司 | Intelligent water supply equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140023681A (en) * | 2012-08-17 | 2014-02-27 | 주식회사 파나시아 | Multi-cage type ballast water filter equipment having discharge pipe which can be attached and detached |
| CN204365018U (en) * | 2014-12-22 | 2015-06-03 | 中煤北京煤矿机械有限责任公司 | Automatic backwashing filter |
| CN205677581U (en) * | 2016-06-07 | 2016-11-09 | 中国石油化工股份有限公司 | Water injection well well-flushing constant pressure valve |
| CN207745605U (en) * | 2017-12-15 | 2018-08-21 | 郑州缘之轩电子信息技术有限公司 | A kind of automated cleaning filter layer for water purifier |
| CN209604560U (en) * | 2018-12-20 | 2019-11-08 | 中国石油天然气股份有限公司 | Device for preventing oil stain in stratum from being reversely discharged |
-
2020
- 2020-12-07 CN CN202011438265.1A patent/CN112546712A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140023681A (en) * | 2012-08-17 | 2014-02-27 | 주식회사 파나시아 | Multi-cage type ballast water filter equipment having discharge pipe which can be attached and detached |
| CN204365018U (en) * | 2014-12-22 | 2015-06-03 | 中煤北京煤矿机械有限责任公司 | Automatic backwashing filter |
| CN205677581U (en) * | 2016-06-07 | 2016-11-09 | 中国石油化工股份有限公司 | Water injection well well-flushing constant pressure valve |
| CN207745605U (en) * | 2017-12-15 | 2018-08-21 | 郑州缘之轩电子信息技术有限公司 | A kind of automated cleaning filter layer for water purifier |
| CN209604560U (en) * | 2018-12-20 | 2019-11-08 | 中国石油天然气股份有限公司 | Device for preventing oil stain in stratum from being reversely discharged |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774996A (en) * | 2021-09-22 | 2021-12-10 | 广州全一泵业有限公司 | Intelligent water supply equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110397128B (en) | Anti-blocking self-cleaning device for sewer line | |
| CN208389509U (en) | A kind of environmental protecting device handling sewage | |
| CN112546712A (en) | Automatic dirt removing device for water supply equipment | |
| CN219011415U (en) | Water supply and drainage device for hydraulic engineering construction | |
| CN213037524U (en) | Novel integrated sewage treatment equipment | |
| CN212262493U (en) | Quartz sand filter | |
| CN114522470A (en) | Step-by-step purification control system for cutting fluid of numerical control machine tool and design method | |
| CN209749508U (en) | Filter | |
| CN208632314U (en) | A kind of frequency-changing pressure stabilizing central water purifier | |
| CN217232139U (en) | Rural sewage treatment is with portable sewage collecting box | |
| CN212549577U (en) | Recycling bin | |
| CN212757439U (en) | Sewage treatment plant for ecological management | |
| CN219091223U (en) | Sewage centralized filter tank | |
| CN215742056U (en) | Treatment box for preventing and treating water pollution | |
| CN2366162Y (en) | Filtering device with automatic dirt drainage | |
| CN217204398U (en) | Assembled rainwater collection and utilization device | |
| CN216778109U (en) | Cooling tower return water filtering device of geothermal energy supply system | |
| CN218280916U (en) | Cleaning device | |
| CN217163375U (en) | Prevent sewage treatment of jam and use sewage pipe | |
| CN209128224U (en) | A kind of living sewage purifying treatment appts | |
| CN219251905U (en) | Filtering device for central heating system | |
| CN215137657U (en) | Water purifier structure with conveniently replaced filter head | |
| CN215975288U (en) | Movable sewage and wastewater treatment equipment | |
| CN215610186U (en) | Water filtration type purification device for industrial waste gas treatment | |
| CN217297467U (en) | Degassing unit for sewage treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210326 |
|
| WW01 | Invention patent application withdrawn after publication |