CN207760151U - A kind of automatic control type combined type water purification equipment comprising weak circular flocculation - Google Patents
A kind of automatic control type combined type water purification equipment comprising weak circular flocculation Download PDFInfo
- Publication number
- CN207760151U CN207760151U CN201721868414.1U CN201721868414U CN207760151U CN 207760151 U CN207760151 U CN 207760151U CN 201721868414 U CN201721868414 U CN 201721868414U CN 207760151 U CN207760151 U CN 207760151U
- Authority
- CN
- China
- Prior art keywords
- flocculation
- valve
- pipeline
- weak
- weak circular
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model is related to purifier technical fields.Purpose is to provide a kind of automatic control type combined type water purification equipment comprising weak circular flocculation, ensures the drinking water safety of the vast rural areas population.Technical solution is：A kind of automatic control type combined type water purification equipment comprising weak circular flocculation, it is characterised in that：Including passing through the sequentially connected electric butterfly valve of pipeline, pipe-line mixer, weak circular flocculation adjuster, weak circular flocculation settling vessel, low tank, pipeline pump, sand filter, clear water reserviors；Flocculant concentration device, flocculation aid supply device add pipeline by flocculant concentration pipeline and flocculation aid respectively and are connect with pipe-line mixer；PLC programming controller respectively by control line in electric butterfly valve, the flocculant blender of flocculant concentration device and flocculant rear pump, the flocculation aid blender of flocculation aid supply device and flocculation aid rear pump, low tank the first liquid level meter, pipeline pump, disinfectant rear pump, clear water reserviors the second liquid level meter be electrically connected.
Description
Technical field
The utility model is related to purifier technical field, specifically a kind of automatic control type combined type for including weak circular flocculation
Water purification equipment.
Background technology
It is source water that the resource of water supply of domestic drinking water in rural areas, which mostly uses greatly surface water, and water quality situation is unstable, and seasonality becomes
Change differs greatly, and especially heavy rain season water quality is poor.Turbidity, oxygen demand, total plate count, coliform in water quality are generally deposited
Severely exceeding situation.The more purifier of application is integrated gravity type or pressure type purifier at present, and equipment is whole
Volume is excessive, preponderance, and transport and installation are inconvenient, and fluctuation of service, water supply security is unable to get guarantee.
Utility model content
The purpose of the utility model is to overcome the deficiencies in background technology, provide a kind of automatic control type including weak circular flocculation
Combined type water purification equipment ensures the drinking water safety of the vast rural areas population.
The technical solution adopted in the utility model is：
A kind of automatic control type combined type water purification equipment comprising weak circular flocculation, it is characterised in that：Including passing through pipeline
Sequentially connected electric butterfly valve, pipe-line mixer, weak circular flocculation adjuster, weak circular flocculation settling vessel, low tank, pipeline
Pump, sand filter, clear water reserviors；Flocculant concentration device, flocculation aid supply device are thrown by flocculant concentration pipeline and flocculation aid respectively
Pipeline is added to be connect with pipe-line mixer；Disinfectant feeding device is connected by the outlet conduit of disinfectant drug feeding pipeline and sand filter
It connects；PLC programming controller is defeated by control line and electric butterfly valve, the flocculant blender of flocculant concentration device and flocculant respectively
Go out pump, the flocculation aid blender of flocculation aid supply device and the first liquid level meter in flocculation aid rear pump, low tank, pipeline pump,
The second liquid level meter electrical connection of disinfectant rear pump, clear water reserviors.
The electric butterfly valve is mounted on the front end of water inlet line, is connect with resource of water supply.
The pipe-line mixer is the drum type brake shape of open at both ends, and inside is disposed with two groups of symmetrical sped structures；
Respectively arrangement is connected with inside it there are one interface at pipe-line mixer tube wall both ends, the interface at both ends respectively with the flocculation
Agent adds pipeline, flocculation aid adds pipeline connection.
Include nozzle, the weak circular flocculation device of taper, regulating valve, flocculation aid reaction inside the weak circular flocculation settling vessel
Area, cylindrical concrete area；The weak circular flocculation settling vessel top periphery is disposed with the effluent weir of a circle loop configuration；It is described weak
Annular region between circular flocculation settling vessel and cylindrical concrete area there also is provided a floor mixing settling section, mixing settling section by
Inclined tube is assembled by certain angle of inclination；The weak circular flocculation settling vessel bottom is the sludge bucket of taper, sludge bucket
Bottom is connected with blowdown valve by pipeline, and top center is installed with the weak circular flocculation adjuster.
The weak circular flocculation device is connected to the bottom of the flocculation aid reaction zone, and the bottom centre of weak circular flocculation device inserts
Entering has the nozzle, and nozzle is connect by pipeline with pipe-line mixer, and weak circular flocculation device top is installed with closed cylinder
The regulating valve, regulating valve are connected by thread with weak circular flocculation adjuster, and weak circular flocculation adjuster passes through spiral shell
Line pull rod lifts to adjust the height of regulating valve, to change flow rate of water flow；Spherical shape is filled inside the flocculation aid reaction zone
The hollow suspension ball filler of perforation.
It is connected with the effluent weir by pipeline at the top of the low tank；The low tank side lower passes through pipe
Road is connected with pipeline pump.
A set of water inlet and backwash tube valve system are equipped with outside the sand filter, by inlet valve, recoil valve, blowdown valve,
Exhaust-valve, outlet valve, pressure gauge composition；The outlet of pipeline pump separates two-way by pipeline, wherein connection inlet valve and row all the way
Dirty valve, connects the top entry of first pressure gauge and sand filter by pipeline between inlet valve and blowdown valve, another way connects
Recoil valve and exhaust-valve are connect, going out for second pressure gauge and sand filter bottom is connected by pipeline between recoil valve and exhaust-valve
Mouthful, sand filter is connect by outlet valve with clear water reserviors top；The rear end of blowdown valve and exhaust-valve is connected by pipeline and is recoiled
Blow-off pipe.
It is sequentially connected at the top of the sand filter with having exhaust pipe and air bleeding valve.
The beneficial effects of the utility model are as follows：The utility model can enhanced flocculation reaction effect, shorten the reaction time, be each
Single devices can be freely combined, and convenient and flexible installation, floor space is small, and overall weight is light.System passes through PLC programming controller reality
Now purification full process automatization operation, also has counter-flush, is convenient for periodic maintenance, can ensure the vast rural areas population
Drinking water safety.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of weak circular flocculation settling vessel 10.
Fig. 3 is the structural schematic diagram of sand filter 18.
Fig. 4 is the structural schematic diagram of flocculant concentration device, flocculation aid supply device and disinfectant feeding device.
Specific implementation mode
The utility model is described in further detail below, but the utility model is not limited to following embodiment.
The utility model includes five hybrid reaction, weak circular flocculation, precipitation, filtering automatic backwash, disinfection water process
Process portion.
Concrete scheme：As shown in Figure 1, a kind of automatic control type combined type water purification equipment comprising weak circular flocculation, mainly
By electric butterfly valve 1, pipe-line mixer 2, weak circular flocculation adjuster 11, weak circular flocculation settling vessel 10, low tank 15, pipeline
Pump 17, sand filter 18, clear water reserviors 27 are connected in sequence by pipeline.As shown in figure 4, flocculant concentration device 29, flocculation aid
Supply device 32 adds pipeline 40 by flocculant concentration pipeline 39 and flocculation aid respectively and is connected with pipe-line mixer 2.Disinfectant
Throwing device 35 is connected by disinfectant drug feeding pipeline 41 with 18 outlet conduit of sand filter.PLC programming controller 37 passes through
Electric wire respectively with electric butterfly valve 1, flocculant blender 30, flocculant rear pump 31, flocculation aid blender 33, flocculation aid rear pump
34, the first liquid level meter 16, pipeline pump 17, disinfectant rear pump 36, the second liquid level meter 28 are connected.
The electric butterfly valve 1 is mounted on the front end of water inlet line.
The pipe-line mixer 2 is the drum type brake shape of open at both ends, and inside is disposed with two groups of symmetrical sped structures；
Respectively arrangement is connected there are one interface with inside it at the pipe-line mixer 2 tube wall both ends, passes through 39 He of flocculant concentration pipeline
Flocculation aid adds pipeline 40 and is connected respectively with flocculant rear pump 34 and flocculation aid rear pump 31.
As shown in Fig. 2, 10 inside of the weak circular flocculation settling vessel includes nozzle 3, the weak circular flocculation device 4 of taper, adjusting
Valve 5, flocculation aid reaction zone 6, cylindrical concrete area 8.Weak 10 top periphery of circular flocculation settling vessel is disposed with a ring shape
The effluent weir 12 of structure；Annular region between the weak circular flocculation settling vessel 10 and coagulation area 8 there also is provided a floor and mix
Settling section 9 is assembled by inclined tube by certain angle of inclination；Weak 10 bottom of circular flocculation settling vessel is the sludge of taper
Bucket 13, the bottom of sludge bucket 13 is connected with blowdown valve 14 by pipeline；Weak 10 top center of circular flocculation settling vessel has one
A weak circular flocculation adjuster 11.Cylindrical concrete area 8 is the entity that a closed tube wall is formed, and upper and lower ends are all not seal
It closes, sees that flow is illustrated in Fig. 1, flow enters flocculation aid reaction zone 6 from nozzle 3, the weak circular flocculation device 4 of taper, regulating valve 5,
Then the top that cylindrical concrete area 8 is overflowed to from the top of flocculation aid reaction zone 6 sinks in cylindrical concrete area 8, from circle
Rise after the annular region that the bottom in cylindricality coagulation area 8 flows between cylindrical concrete area 8 and weak circular flocculation settling vessel 10, it
After flow through mixing settling section 9, then flow into effluent weir 12.
6 bottom of flocculation aid reaction zone is equipped with a set of weak circular flocculation device 4, and there are one close on weak circular flocculation device top
Cylindrical regulating valve 5 is closed, regulating valve 5 is connected by thread with weak circular flocculation adjuster 11, weak circular flocculation tune
Section device 11 can adjust the height of regulating valve 5 by the lifting of thread, to change flow rate of water flow；The flocculation aid is anti-
It answers and fills the hollow suspension ball filler of spherical perforation 7 inside area 6.
Weak 4 bottom centre of circular flocculation device stretches into there are one nozzle 3, and nozzle 3 passes through pipeline and 2 phase of pipe-line mixer
Connection.
15 top of the low tank is connected by pipeline with effluent weir 12；15 side lower of the low tank passes through
Pipeline is connected with pipeline pump；The first liquid level meter 16 is also equipped with inside the low tank 15；
As shown in figure 3, being equipped with a set of water inlet and backwash tube valve system outside the sand filter, by inlet valve 19, instead
Valve 20, blowdown valve 21, exhaust-valve 22, outlet valve 26, pressure gauge 23 is rushed to form.The outlet of pipeline pump 17 separates two by pipeline
Road, wherein connection inlet valve 19 and blowdown valve 21 all the way, first pressure is connected between inlet valve 19 and blowdown valve 21 by pipeline
The top entry of table 23-1 and sand filter 18, another way connect recoil valve 20 and exhaust-valve 22, recoil valve 20 and exhaust-valve
The outlet of second pressure gauge 23-2 and 18 bottom of sand filter is connected between 22 by pipeline, sand filter 18 passes through outlet valve
26 connect with clear water reserviors top；The rear end of blowdown valve 21 and exhaust-valve 22 connects recoil blow-off pipe 42 by pipeline.
It is sequentially connected equipped with exhaust pipe 25 and air bleeding valve 24 at the top of the sand filter.
27 inside of the clear water reserviors is equipped with the second liquid level meter 28；27 pool wall lower part of the clear water reserviors is connected to confession equipped with pipeline
Water user, is additionally provided with blowdown valve；
The flocculation aid supply device 29 includes flocculation aid blender 30 and flocculation aid rear pump 31；The flocculant concentration device
32 include flocculant blender 33 and flocculant rear pump 34；The disinfectant feeding device 35 includes disinfectant rear pump 36；
The operation principle of the utility model is：
Flocculation aid is added to spare in flocculation aid supply device 32, and solid kind flocculation aid need to be dissolved in water；
Spare in flocculant concentration to flocculant concentration device 29, solid kind flocculant need to be dissolved in water；
Disinfectant is added to spare in disinfectant feeding device 35, and solid kind disinfectant need to be dissolved in water；
The second liquid level meter 28 in clear water reserviors is provided with high water level and low water level test point, and when in low water level, PLC is compiled
It is defeated that range controller 37 controls electric butterfly valve 1, flocculation aid blender 30, flocculation aid rear pump 31, flocculant blender 33, flocculant
Go out pump 34 to start, the source water with pressure flows into pipe-line mixer 2 and uniformly mixes with flocculation aid and flocculant, and source water is through spray
Mouth 3 is injected into weak circular flocculation device 4, and in flocculation aid reaction zone 6, source water ceaselessly collides with suspension ball filler 7
And change direction, the flocculant in water since the thin alumen ustum that hydrolysis generates also ceaselessly collides, thin alumen ustum help it is solidifying
Quickly form big alumen ustum under the action of agent, water enters coagulation area 8 from the 6 top overflow of flocculation aid reaction zone, and alumen ustum is further grown up；
When water flow down pass through 3 surrounding of nozzle when, due to nozzle 3 spray quick flow generate suction function, part flow and
Alumen ustum is mixed into weak circular flocculation device 4 is interior with source water again, is increased the water turbidity in flocculation aid reaction zone 6, is accelerated alumen ustum
Formation, another part water then flows out from 8 bottom of coagulation area, and the alumen ustum of bulky grain adsorbed the suspended contaminant in water, in weight
It being separated from water and is sunk in sludge bucket 13 under the action of power, thin alumen ustum and clear water then up flow through mixing settling section 9 and further detach,
It is to be filtered that final clear water is pooled to inflow low tank 15 in effluent weir 12；
The first liquid level meter 16 in low tank 15 is provided with high water level and low water level test point, when water is full to high water level
When, 37 control pipeline of PLC programming controller pumps 17 and 36 synchronous averaging of disinfectant rear pump, and the water in low tank 15 is through pipeline
After 17 pressurization of pump, sand filter 18 (recoil valve 20, blowdown valve 21 at this time, exhaust-valve 22 are closed), water are pumped by inlet valve 19
Matter turbidity and oxygen demand are further decreased, and filtered water is flowed into through outlet valve 26 in clear water reserviors 27, and disinfectant is also by disappearing
Toxic agent throwing device 35, which synchronizes, to be added in 18 outlet conduit of sand filter, sterilized rear water turbidity, oxygen consumption in clear water reserviors 27
Amount, microbiological indicator meet《Standards for drinking water quality》GB5749-2006.When 15 water of low tank is down to low water level
When；37 control pipeline of PLC programming controller pump 17 and disinfectant rear pump 36 are closed.
When water level reaches restriction high water level in clear water reserviors 27, PLC programming controller 37 controls electric butterfly valve 1, flocculation aid
Blender 30, flocculation aid rear pump 31, flocculant blender 33, flocculant rear pump 34 stop.
Sludge in sludge bucket 13 is discharged by periodically turning on blowdown valve 14.
When the pressure of first pressure gauge 23-1 increases to certain value, illustrates that 18 resistance of sand filter is excessive, need to recoil
Wash operation.When backwash, inlet valve 19, exhaust-valve 22, outlet valve 26 are closed, recoil valve 20, blowdown valve 21 are opened, flow
Enter 18 bottom of sand filter from recoil valve 20, the inside for the sand filter 18 that recoils then up, finally from sand filter 18
Top overflows, and is discharged from recoil blow-off pipe 42 after blowdown valve 21.Exhaust-valve 22 is used when filtering debugging, is debugged
When, if filtering effluent quality is bad, exhaust-valve 22 can be opened, outlet valve 26 is simultaneously closed off, water is dumped, avoid pollution clear water
Pond.
Listed above is only specific embodiment of the utility model.Obviously, the utility model is not limited to above example,
There can also be many variations.Those skilled in the art directly can export or associate from content disclosed by the utility model
All deformations arrived, are considered as the scope of protection of the utility model.
Claims (8)
1. a kind of automatic control type combined type water purification equipment comprising weak circular flocculation, it is characterised in that：Including by pipeline according to
The electric butterfly valve (1) of secondary connection, pipe-line mixer (2), weak circular flocculation adjuster (11), weak circular flocculation settling vessel (10),
Low tank (15), pipeline pump (17), sand filter (18), clear water reserviors (27)；Flocculant concentration device (29), flocculation aid supply device
(32) pipeline (40) is added by flocculant concentration pipeline (39) and flocculation aid respectively to connect with pipe-line mixer (2)；Disinfectant
Throwing device (35) is connect by disinfectant drug feeding pipeline (41) with the outlet conduit of sand filter (18)；PLC programming controller
(37) pass through control line (38) and electric butterfly valve (1), the flocculant blender (30) of flocculant concentration device (29) and flocculation respectively
In agent rear pump (31), the flocculation aid blender (33) of flocculation aid supply device (32) and flocculation aid rear pump (34), low tank
The first liquid level meter (16), pipeline pump (17), disinfectant rear pump (36), clear water reserviors the second liquid level meter (28) electrical connection.
2. a kind of automatic control type combined type water purification equipment comprising weak circular flocculation according to claim 1, feature
It is：The electric butterfly valve (1) is mounted on the front end of water inlet line, is connect with resource of water supply.
3. a kind of automatic control type combined type water purification equipment comprising weak circular flocculation according to claim 1, feature
It is：The pipe-line mixer (2) is the drum type brake shape of open at both ends, and inside is disposed with two groups of symmetrical sped structures；
Respectively arrangement is connected with inside it there are one interface at pipe-line mixer (2) the tube wall both ends, the interface at both ends respectively with it is described
Flocculant concentration pipeline (39), flocculation aid add pipeline (40) connection.
4. a kind of automatic control type combined type water purification equipment comprising weak circular flocculation according to claim 1, feature
It is：Inside the weak circular flocculation settling vessel (10) comprising nozzle (3), the weak circular flocculation device (4) of taper, regulating valve (5),
Flocculation aid reaction zone (6), cylindrical concrete area (8)；Weak circular flocculation settling vessel (10) top periphery is disposed with a ring
The effluent weir (12) of shape structure；Annular region between the weak circular flocculation settling vessel (10) and cylindrical concrete area (8) is also
It is disposed with one layer of mixing settling section (9), mixing settling section (9) is assembled by inclined tube by certain angle of inclination；It is described weak to follow
Ring flocculation sediment device (10) bottom is the sludge bucket (13) of taper, and the bottom of sludge bucket (13) is connected with blowdown valve by pipeline
(14), top center is installed with the weak circular flocculation adjuster (11).
5. a kind of automatic control type combined type water purification equipment comprising weak circular flocculation according to claim 4, feature
It is：The weak circular flocculation device (4) is connected to the bottom of the flocculation aid reaction zone (6), the bottom of weak circular flocculation device (4)
Center is connect by pipeline with pipe-line mixer (2) inserted with the nozzle (3), nozzle (3), weak circular flocculation device (4) top
The regulating valve (5) of closed cylinder is installed, regulating valve (5) passes through thread and weak circular flocculation adjuster (11) phase
Connection, weak circular flocculation adjuster (11) adjusts the height of regulating valve (5) by the lifting of thread, to change flow
Flow velocity；The spherical hollow suspension ball filler (7) of perforation is filled inside the flocculation aid reaction zone (6).
6. a kind of automatic control type combined type water purification equipment comprising weak circular flocculation according to claim 4 or 5, special
Sign is：It is connected with the effluent weir (12) by pipeline at the top of the low tank (15)；Low tank (15) side
Face lower part is connected by pipeline with pipeline pump (17).
7. a kind of automatic control type combined type water purification equipment comprising weak circular flocculation according to claim 1, feature
It is：A set of water inlet and backwash tube valve system are equipped with outside the sand filter (18), by inlet valve (19), recoil valve
(20), blowdown valve (21), exhaust-valve (22), outlet valve (26), pressure gauge (23) composition；The outlet of pipeline pump (17) passes through pipeline
Two-way is separated, wherein connection inlet valve (19) and blowdown valve (21) all the way, passes through pipe between inlet valve (19) and blowdown valve (21)
Road connects the top entry of first pressure gauge (23-1) and sand filter (18), and another way connects recoil valve (20) and exhaust-valve
(22), second pressure gauge (23-2) and sand filter (18) bottom are connect by pipeline between recoil valve (20) and exhaust-valve (22)
The outlet in portion, sand filter (18) are connect by outlet valve (26) with clear water reserviors top；Blowdown valve (21) and exhaust-valve (22)
Rear end pass through pipeline connection recoil blow-off pipe (42).
8. a kind of automatic control type combined type water purification equipment comprising weak circular flocculation according to claim 1 or claim 7, special
Sign is：It is sequentially connected at the top of the sand filter with having exhaust pipe (25) and air bleeding valve (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868414.1U CN207760151U (en) | 2017-12-27 | 2017-12-27 | A kind of automatic control type combined type water purification equipment comprising weak circular flocculation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868414.1U CN207760151U (en) | 2017-12-27 | 2017-12-27 | A kind of automatic control type combined type water purification equipment comprising weak circular flocculation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207760151U true CN207760151U (en) | 2018-08-24 |
Family
ID=63185048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721868414.1U Active CN207760151U (en) | 2017-12-27 | 2017-12-27 | A kind of automatic control type combined type water purification equipment comprising weak circular flocculation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207760151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704265A (en) * | 2020-06-10 | 2020-09-25 | 浙江浙东环保科技有限公司 | Water purification equipment and water purification method thereof |
-
2017
- 2017-12-27 CN CN201721868414.1U patent/CN207760151U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704265A (en) * | 2020-06-10 | 2020-09-25 | 浙江浙东环保科技有限公司 | Water purification equipment and water purification method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106315797A (en) | Small fine dosing, coagulating and precipitating integrated device | |
| CN205347020U (en) | Deposit and filter integrated reactor | |
| CN201785277U (en) | Vertical-flow type air flotation water treatment device based on electric condensation and secondary filtration | |
| CN107055871A (en) | A kind of new coagulating sedimentation retention filtering air-water backwashing integrated high-efficiency filter tank | |
| CN106045148A (en) | Novel intelligent electric flocculation treatment apparatus of power plant coal-containing wastewater | |
| CN102424488B (en) | Integrated-process rural water purifier based on micro-eddy flocculation | |
| CN108002639A (en) | Integrated form integration ecological water factory | |
| CN106277252A (en) | A kind of raising coagulating sedimentation and method of filter effect in clean water treatment | |
| CN205527877U (en) | Purifier is strained to unpowered full -automatic membrane | |
| CN103848467B (en) | High-efficiency vertical flowing type water treatment flotation tank | |
| CN100366549C (en) | A high-efficiency energy-saving water purification process and device | |
| CN102050529B (en) | Immersed water treatment device of inner circulating membrane coagulation reactor | |
| CN207760151U (en) | A kind of automatic control type combined type water purification equipment comprising weak circular flocculation | |
| CN103896431A (en) | Water treatment method combining coagulation-precipitation-re-flocculation-ultrafiltration | |
| CN203741079U (en) | High-efficiency vertical flow water treatment floatation tank | |
| CN208684599U (en) | A kind of double-layer integrally water purification apparatus | |
| CN201952305U (en) | A kind of sewage treatment equipment | |
| CN206463554U (en) | A kind of high-efficiency swirl-type second pond | |
| CN104289012A (en) | Settling tank for sewage treatment | |
| CN205442762U (en) | Light biological filter | |
| CN116715317A (en) | Skid-mounted integrated water treatment equipment and integrated water treatment system | |
| CN208649085U (en) | A kind of sludge refluxing apparatus | |
| CN206352087U (en) | Integrated advanced treatment apparatus | |
| CN207738577U (en) | Vertical current suspension bed integral domestic sewage treatment device | |
| CN203269700U (en) | Water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |