CN212581581U - Water supply ammonia adding device - Google Patents
Water supply ammonia adding device Download PDFInfo
- Publication number
- CN212581581U CN212581581U CN202021080121.9U CN202021080121U CN212581581U CN 212581581 U CN212581581 U CN 212581581U CN 202021080121 U CN202021080121 U CN 202021080121U CN 212581581 U CN212581581 U CN 212581581U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- frame body
- bottom plate
- bevel gear
- framework
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a feedwater ammoniation device, concretely relates to power boiler technical field, comprising a base plate, bottom plate top fixedly connected with framework, framework one side fixedly connected with inlet pipe, inside ammoniation mechanism and the clearance mechanism of being equipped with respectively of framework, ammoniation mechanism includes the PH detector, PH detector one end runs through the framework top and extends into inside the framework, two conveying pipelines of framework top fixedly connected with, the PH detector is located between two conveying pipelines. The utility model discloses a pivot is rotated and is driven first bevel gear and rotate, and first bevel gear rotates and drives second bevel gear and rotate to drive the brush hair and clear up the oxide on bottom plate top, when the oxide gets into in the long-pending material frame, the feedwater in long-pending material frame and the framework is separated to the rebound baffle, opens the reactant in first piston clearance long-pending material frame, conveniently handles ammonia nitrogen waste water, and the recycle simultaneously supplies water, reduction in production cost.
Description
Technical Field
The utility model relates to a power boiler technical field, concretely relates to feedwater ammoniating device.
Background
In a boiler feed water system of a power plant, the pH value of feed water or condensed water is generally increased by adding ammonia, and free carbon dioxide in the feed water is neutralized, so that the corrosion to pipelines of a boiler feed water system and pipelines of a boiler heating surface caused by low pH value is reduced, but the corrosion to copper systems is caused by excessively high pH value, and therefore, ammonia adding control in the feed water system is required to be kept stable.
Most of the existing ammonia adding devices are operated manually by experience, the ammonia adding quantity is difficult to control, the ammonia gas loss is large, and meanwhile, the ammonia nitrogen wastewater is difficult to treat.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a feedwater ammoniating device, it rotates to drive first bevel gear through the pivot, first bevel gear rotates and drives second bevel gear and rotate, thereby it clears up the oxide on bottom plate top to drive the brush hair, when the oxide gets into the long-pending material frame, the feedwater in long-pending material frame and the framework is separated to the rebound baffle, open the reactant in first piston clearance long-pending material frame, conveniently handle ammonia nitrogen waste water, the water is supplied in the simultaneous cycle, and the production cost is reduced, in order to solve the problem that ammonia nitrogen waste water is difficult to handle in the prior art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a water supply ammonia adding device comprises a bottom plate, wherein the top end of the bottom plate is fixedly connected with a frame body, one side of the frame body is fixedly connected with a feeding pipe, and an ammonia adding mechanism and a cleaning mechanism are respectively arranged in the frame body;
the ammonia adding mechanism comprises a PH detector, one end of the PH detector penetrates through the top end of the frame body and extends into the frame body, the top end of the frame body is fixedly connected with two conveying pipes, the PH detector is positioned between the two conveying pipes, one side of each of the two conveying pipes, which is opposite to the other side, is provided with a switch valve, one end of one of the conveying pipes, which is far away from the frame body, is fixedly connected with a second material storage tank, the top end of the frame body is fixedly connected with a water pump, the water inlet end of the water pump is fixedly connected with a second water pipe, one end of the second water pipe, which is far away from the water pump, is fixedly;
clearance mechanism includes positive and negative motor, positive and negative motor and bottom plate bottom fixed connection, positive and negative motor output shaft fixedly connected with pivot, inside positive and negative motor's one end was kept away from in the pivot runs through the bottom plate and extends into the framework, the inside first bevel gear that is equipped with of framework, the fixed cover of first bevel gear is established at the pivot outer peripheral face, first bevel gear both sides all are equipped with second bevel gear, two second bevel gear all meshes with first bevel gear mutually, two the equal fixedly connected with threaded rod in one side that second bevel gear carried on the back mutually, two the threaded rod outer peripheral face all overlaps and is equipped with the thread bush, two the thread bush respectively with the threaded rod threaded connection of relevant position, two the equal fixedly connected with a plurality of brush hairs in thread bush bottom, it is a plurality of the brush.
Furthermore, the through grooves are formed in two sides of the frame body, the two material accumulation frames are fixedly connected to the top end of the bottom plate, and the opposite ends of the two material accumulation frames are fixedly connected with two sides of the frame body respectively.
Further, two the threaded rod one end of keeping away from the second bevel gear passes the logical groove of relevant position and passes through bearing swing joint with long-pending material frame inner wall, two equal fixedly connected with traveller in both sides around the thread bush, the spout has all been seted up to both sides around framework and two long-pending material frames, four the traveller is established respectively inside the spout of relevant position.
Further, two discharge gates have all been seted up on long-pending material frame top, two discharge gate inside all is equipped with first piston.
Further, four moving wheels are fixedly connected to the bottom end of the bottom plate, and the positive and negative motors are located between the four moving wheels.
Further, the bottom plate bottom is equipped with two baffles, two baffle one end runs through the bottom plate respectively and extends into the logical inslot portion of relevant position, two equal fixedly connected with spring between baffle and the bottom plate, two the spring is established respectively the baffle outer peripheral face at relevant position.
Furthermore, the top of each of the two threaded sleeves is provided with a stirring blade, and the stirring blades are fixedly sleeved on the peripheral surface of the rotating shaft.
Furtherly, another the first storage tank of conveying pipeline top fixedly connected with, the feed inlet has all been seted up on first storage tank and second storage tank top, two the inside second piston that all is equipped with of feed inlet.
The frame body inner chamber rear side fixedly connected with filter screen, the filter screen is located second water pipe front side.
The utility model has the advantages of as follows:
1. the utility model discloses an add the ammonia in to the second storage tank, open the ooff valve and make the ammonia in the second storage tank flow into in the frame through the conveying pipeline, and mix with the feedwater in the frame, start positive and negative motor simultaneously, positive and negative motor work drives the stirring leaf and rotates, make ammonia and feedwater intensive mixing, detect the PH value of feedwater in the frame through the PH detector, then start the water pump, water pump work pours into the boiler water supply system through first water pipe with the feedwater into, compare with prior art, control the number of ammoniating, it is accurate to adjust PH value, reduce the ammonia loss;
2. the utility model discloses an open the ooff valve and make the oxidant fall into in the frame through the conveying pipeline, and with nitrogen reaction in the waste water, the pivot is rotated and is driven first bevel gear and rotate, first bevel gear rotates and drives second bevel gear and rotate, thereby it rotates to drive the threaded rod, the threaded rod rotates and drives the thread bush and remove, thereby it clears up to drive the brush hair to the oxide on bottom plate top, when the oxide gets into in the long-pending material frame, the feedwater in long-pending material frame and the frame is separated to the rebound baffle, open the reactant in the first piston clearance long-pending material frame, compare with prior art, conveniently handle ammonia nitrogen waste water, the cyclic use is given water, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a sectional view of the overall structure of the present invention;
FIG. 3 is a top view of the threaded sleeve of the present invention;
fig. 4 is a side view of the baffle of the present invention;
FIG. 5 is a perspective view of the threaded sleeve of the present invention;
in the figure: the automatic feeding device comprises a frame body, a feeding pipe, a stirring blade, a piston, a material accumulating frame, a threaded rod, a through groove, a baffle, a spring, a threaded sleeve, a moving wheel, a base plate, a bevel gear, a motor, a positive and negative motor, a bevel gear, a sliding column and a sliding column, wherein the frame body is 1, the feeding pipe is 2, the stirring blade is 3, the piston is 4, the material accumulating frame is 5, the threaded rod is 6, the through groove is 7, the baffle is 8, the spring is 9, the threaded sleeve is 10, the moving wheel is 11, the base plate is 12, a bevel gear is 13.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings 1-5 in the specification, the water supply and ammonia adding device of the embodiment comprises a bottom plate 12, wherein the top end of the bottom plate 12 is fixedly connected with a frame body 1, one side of the frame body 1 is fixedly connected with a feed pipe 2, an ammonia adding mechanism and a cleaning mechanism are respectively arranged inside the frame body 1, the ammonia adding mechanism comprises a PH detector 24, one end of the PH detector 24 penetrates through the top end of the frame body 1 and extends into the frame body 1, the top end of the frame body 1 is fixedly connected with two feed pipes 27, the PH detector 24 is positioned between the two feed pipes 27, one side of each feed pipe 27 opposite to the other is provided with a switch valve 22, one end of each feed pipe 27 far away from the frame body 1 is fixedly connected with a second storage tank 26, the top end of the frame body 1 is fixedly connected with a water pump 20, the water inlet end of the water pump 20 is fixedly connected with a second water pipe 21, one end of the, the water outlet end of the water pump 20 is fixedly connected with a first water pipe 19.
Further, bottom plate 12 bottom fixedly connected with four remove wheels 11, positive and negative motor 14 is located between four remove wheels 11, the convenient removal.
Further, the top of each of the two threaded sleeves 10 is provided with a stirring blade 3, and the stirring blades 3 are fixedly sleeved on the outer peripheral surface of the rotating shaft 18, so that ammonia gas and water can be mixed sufficiently.
The implementation scenario is specifically as follows: the worker opens the second piston 25, adds ammonia gas into the second storage tank 26, opens the switch valve 22 to make the ammonia gas in the second storage tank 26 flow into the frame 1 through the feed delivery pipe 27, and is mixed with the water supply in the frame body 1, and simultaneously, the positive and negative motor 14 is started, the positive and negative motor 14 works to drive the rotating shaft 18 to rotate, thereby driving the stirring blades 3 to rotate, leading the ammonia gas to be fully mixed with the water supply, detecting the PH value of the water supply in the frame body 1 through the PH detector 24, when the PH value of the feed water in the frame body 1 reaches 8.5, the switch valve 22 is closed to prevent ammonia gas from entering the frame body 1, then the water pump 20 is started, the water pump 20 works to pump the feed water in the frame body 1 through the second water pipe 21, and is injected into a boiler water supply system through a first water pipe 19, the ammonia adding amount is controlled, the PH value is adjusted accurately, the ammonia gas loss is reduced, through setting up removal wheel 11, the convenient removal, this embodiment has specifically solved the big problem of ammonia loss among the prior art.
Referring to the attached drawings 1-5 in the specification, the cleaning mechanism of the water feeding and ammonia adding device of the embodiment comprises a positive and negative motor 14, the positive and negative motor 14 is fixedly connected with the bottom end of a bottom plate 12, an output shaft of the positive and negative motor 14 is fixedly connected with a rotating shaft 18, one end of the rotating shaft 18 far away from the positive and negative motor 14 penetrates through the bottom plate 12 and extends into a frame body 1, a first bevel gear 13 is arranged inside the frame body 1, the first bevel gear 13 is fixedly sleeved on the outer peripheral surface of the rotating shaft 18, two second bevel gears 15 are arranged on two sides of the first bevel gear 13, both the two second bevel gears 15 are meshed with the first bevel gear 13, a threaded rod 6 is fixedly connected to one side of each of the two second bevel gears 15 opposite to each other, threaded sleeves 10 are sleeved on the outer peripheral surfaces of the two threaded rods, the bottom ends of the two thread sleeves 10 are fixedly connected with a plurality of bristles 16, and the bristles 16 are all in contact with the top end of the bottom plate 12.
Furthermore, logical groove 7 has all been seted up to framework 1 both sides, two long-pending material frames 5 of bottom plate 12 top fixedly connected with, two long-pending material frame 5 opposite ends respectively with framework 1 both sides fixed connection, make things convenient for the reactant to get into long-pending material frame 5.
Further, two the one end that second bevel gear 15 was kept away from to threaded rod 6 passes logical groove 7 of relevant position and passes through bearing swing joint, two with long-pending material frame 5 inner wall the equal fixedly connected with traveller 17 in both sides around the thread bush 10, the spout has all been seted up to both sides around framework 1 and two long-pending material frames 5, four traveller 17 establishes respectively inside the spout of relevant position, restriction thread bush 10 rotates.
Further, discharge ports are formed in the top ends of the material accumulation frames 5, and first pistons 4 are arranged inside the discharge ports, so that reactants in the material accumulation frames 5 can be conveniently cleaned.
Further, the bottom of bottom plate 12 is equipped with two baffles 8, two baffle 8 one end runs through bottom plate 12 respectively and extends into corresponding position's logical inslot 7, two equal fixedly connected with spring 9 between baffle 8 and the bottom plate 12, two spring 9 overlaps respectively and establishes the 8 outer peripheral faces of baffle at corresponding position, separates the feedwater in long-pending material frame 5 and the framework 1, conveniently clears up the reactant in long-pending material frame 5.
Further, another first storage tank 23 is fixedly connected to the top end of the conveying pipeline 27, feed inlets are formed in the top ends of the first storage tank 23 and the second storage tank 26, and a second piston 25 is arranged inside each feed inlet to facilitate adding of an oxidant.
Further, the rear side of the inner cavity of the frame body 1 is fixedly connected with a filter screen, and the filter screen is positioned on the front side of the second water pipe 21 and prevents oxides from entering the second water pipe 21.
The implementation scenario is specifically as follows: waste water is injected into the frame body 1 through the feeding pipe 2, an oxidant is added into the first storage tank 23, the switch valve 22 is opened to enable the oxidant to fall into the frame body 1 through the feeding pipe 27 and react with nitrogen in the waste water, the oxide generated by the reaction falls on the top end of the bottom plate 12, the filter screen prevents the oxide from entering the second water pipe 21, the nitrogen in the feed water is removed through the oxidant, the PH value of the feed water in the frame body 1 is observed through the PH detector 24, the feed water is recycled, the rotating shaft 18 rotates to drive the first bevel gear 13 to rotate, the first bevel gear 13 rotates to drive the second bevel gear 15 to rotate due to the meshing of the first bevel gear 13 and the second bevel gear 15, the threaded rod 6 is driven to rotate, the threaded rod 6 is in threaded connection with the threaded sleeve 10, the sliding column 17 limits the rotation of the threaded sleeve 10, the threaded rod 6 rotates to drive the threaded sleeve 10 to move, and the, when the oxide gets into in the long-pending material frame 5, upwards remove baffle 8 and separate the feedwater in long-pending material frame 5 and the framework 1, open first piston 4 and clear up the reactant in long-pending material frame 5, conveniently handle ammonia nitrogen waste water, this embodiment has specifically solved the problem that ammonia nitrogen waste water is difficult to handle among the prior art.
The working principle is as follows:
referring to the attached drawings 1-5 of the specification, a worker opens the switch valve 22 to enable ammonia gas in the second storage tank 26 to flow into the frame body 1 through the delivery pipe 27 and to be mixed with feed water in the frame body 1, simultaneously starts the positive and negative motor 14, the positive and negative motor 14 works to drive the rotating shaft 18 to rotate, so that the stirring blades 3 are driven to rotate, the ammonia gas is fully mixed with the feed water, the PH value of the feed water in the frame body 1 is detected through the PH detector 24, then the water pump 20 is started, the water pump 20 works to extract the feed water in the frame body 1 through the second water pipe 21 and injects the feed water into a boiler feed water system through the first water pipe 19;
referring to the attached drawings 1-5 of the specification, wastewater is injected into the frame body 1 through the feeding pipe 2, the on-off valve 22 is opened to enable an oxidant to fall into the frame body 1 through the feeding pipe 27 and react with nitrogen in the wastewater, oxides generated by the reaction fall on the top end of the bottom plate 12, the rotating shaft 18 rotates to drive the first bevel gear 13 to rotate, the first bevel gear 13 rotates to drive the second bevel gear 15 to rotate, so as to drive the threaded rod 6 to rotate, the threaded rod 6 rotates to drive the threaded sleeve 10 to move, so as to drive the bristles 16 to clean the oxides on the top end of the bottom plate 12, when the oxides enter the material accumulation frame 5, the upward moving baffle 8 separates the water supply in the material accumulation frame 5 and the water supply in the frame body 1, and the first piston 4 is opened to clean the.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A feedwater ammoniating device comprising a bottom plate (12), characterized in that: the top end of the bottom plate (12) is fixedly connected with a frame body (1), one side of the frame body (1) is fixedly connected with a feeding pipe (2), and an ammonia adding mechanism and a cleaning mechanism are respectively arranged in the frame body (1);
the ammonia adding mechanism comprises a PH detector (24), one end of the PH detector (24) penetrates through the top end of the frame body (1) and extends into the frame body (1), the top end of the frame body (1) is fixedly connected with two conveying pipes (27), the PH detector (24) is located between the two conveying pipes (27), one side, back to back, of each of the two conveying pipes (27) is provided with a switch valve (22), one end, far away from the frame body (1), of one of the conveying pipes (27) is fixedly connected with a second storage tank (26), the top end of the frame body (1) is fixedly connected with a water pump (20), the water inlet end of the water pump (20) is fixedly connected with a second water pipe (21), one end, far away from the water pump (20), of the second water pipe (21) is fixedly connected with the rear side of the frame body (1), and the water outlet end of the water pump;
the cleaning mechanism comprises a positive and negative motor (14), the positive and negative motor (14) is fixedly connected with the bottom end of a bottom plate (12), an output shaft of the positive and negative motor (14) is fixedly connected with a rotating shaft (18), one end, far away from the positive and negative motor (14), of the rotating shaft (18) penetrates through the bottom plate (12) and extends into a frame body (1), a first bevel gear (13) is arranged inside the frame body (1), the first bevel gear (13) is fixedly sleeved on the outer peripheral surface of the rotating shaft (18), two second bevel gears (15) are arranged on two sides of the first bevel gear (13), the two second bevel gears (15) are meshed with the first bevel gear (13), threaded rods (6) are fixedly connected to two opposite sides of the two second bevel gears (15), threaded sleeves (10) are sleeved on the outer peripheral surfaces of the two threaded rods (6), and the two threaded sleeves (10) are respectively in threaded connection with the threaded, the bottom ends of the two thread sleeves (10) are fixedly connected with a plurality of bristles (16), and the bristles (16) are in contact with the top end of the bottom plate (12).
2. The apparatus according to claim 1, wherein: logical groove (7) have all been seted up to framework (1) both sides, two long-pending material frames (5) of bottom plate (12) top fixedly connected with, two long-pending material frame (5) one end in opposite directions respectively with framework (1) both sides fixed connection.
3. A device for adding ammonia to feedwater according to claim 2, wherein: two threaded rod (6) keep away from logical groove (7) of relevant position and pass through bearing swing joint, two with long-pending material frame (5) inner wall through the one end of second bevel gear (15) the equal fixedly connected with traveller (17) in both sides around screw thread bush (10), the spout has all been seted up to both sides around framework (1) and two long-pending material frames (5), four traveller (17) are established respectively inside the spout of relevant position.
4. A device for adding ammonia to feedwater according to claim 2, wherein: two the discharge gate has all been seted up on long-pending material frame (5) top, two inside first piston (4) that all is equipped with of discharge gate.
5. The apparatus according to claim 1, wherein: the bottom end of the bottom plate (12) is fixedly connected with four moving wheels (11), and the positive and negative motors (14) are located between the four moving wheels (11).
6. A device for adding ammonia to feedwater according to claim 2, wherein: bottom plate (12) bottom is equipped with two baffle (8), two baffle (8) one end runs through bottom plate (12) respectively and extends into corresponding position's logical groove (7) inside, two equal fixedly connected with spring (9) between baffle (8) and bottom plate (12), two spring (9) are established baffle (8) outer peripheral face at corresponding position respectively.
7. The apparatus according to claim 1, wherein: the top of the two threaded sleeves (10) is provided with two stirring blades (3), and the two stirring blades (3) are fixedly sleeved on the peripheral surface of the rotating shaft (18).
8. The apparatus according to claim 1, wherein: and the other is a first material storage tank (23) fixedly connected to the top end of the material conveying pipe (27), wherein feed inlets are formed in the top ends of the first material storage tank (23) and the second material storage tank (26), and a second piston (25) is arranged inside each feed inlet.
9. The apparatus according to claim 1, wherein: the rear side of the inner cavity of the frame body (1) is fixedly connected with a filter screen, and the filter screen is positioned on the front side of the second water pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021080121.9U CN212581581U (en) | 2020-06-12 | 2020-06-12 | Water supply ammonia adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021080121.9U CN212581581U (en) | 2020-06-12 | 2020-06-12 | Water supply ammonia adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212581581U true CN212581581U (en) | 2021-02-23 |
Family
ID=74650505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021080121.9U Active CN212581581U (en) | 2020-06-12 | 2020-06-12 | Water supply ammonia adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212581581U (en) |
-
2020
- 2020-06-12 CN CN202021080121.9U patent/CN212581581U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214115126U (en) | Lithium ion battery waste liquid filtration treatment device | |
| CN111977765A (en) | Engineering sewage treatment plant | |
| CN117101461B (en) | Medicine mixing equipment for marine ecological management | |
| CN211988352U (en) | Be used for prosthetic medicament mixing stirring device of soil | |
| CN212581581U (en) | Water supply ammonia adding device | |
| CN114149066A (en) | Dosing device for acid wastewater treatment and using method thereof | |
| CN115228267B (en) | Industrial sewage treatment equipment | |
| CN214638496U (en) | Metal product waste recovery equipment | |
| CN216604866U (en) | Mixing tank for textile industry auxiliary production | |
| CN215917599U (en) | A dull polish machine for coating processing usefulness | |
| CN214020565U (en) | Multifunctional special stirring device for agricultural liquid fertilizer | |
| CN211216294U (en) | Improved generation sewage treatment integration charge device | |
| CN212732653U (en) | Dosing device for sewage treatment | |
| CN212799778U (en) | Sewage treatment filter equipment | |
| CN210905908U (en) | A wetting device for medicine machine of steeping | |
| CN208320715U (en) | A kind of cement grinding aid agitating device | |
| CN207463008U (en) | A kind of organic pigment blender being convenient to clean | |
| CN217377415U (en) | A purifier for industrial wastewater handles | |
| CN218539396U (en) | Environment-friendly sedimentation tank for sewage treatment | |
| CN214654923U (en) | Dosing unit is used in fermentation microorganism fermentation | |
| CN214528198U (en) | Novel sewage treatment tank | |
| CN220071395U (en) | Medicament adding device with high-pressure pipeline | |
| CN215627848U (en) | Plant essence extraction element | |
| CN217895176U (en) | Quantitative feeding device for environmental pollution treatment agent | |
| CN209583667U (en) | Water recycles water saving fixtures in a kind of intelligence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |