CN209809946U - Online cleaning system for filtering membrane - Google Patents
Online cleaning system for filtering membrane Download PDFInfo
- Publication number
- CN209809946U CN209809946U CN201920506653.5U CN201920506653U CN209809946U CN 209809946 U CN209809946 U CN 209809946U CN 201920506653 U CN201920506653 U CN 201920506653U CN 209809946 U CN209809946 U CN 209809946U
- Authority
- CN
- China
- Prior art keywords
- cleaning
- pipeline
- valve
- water
- sludge
- 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 Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a filtration membrane's cleaning system's technical field especially relates to an online cleaning system for filtration membrane, it includes control system, the filtration membrane case, place in the filtration membrane group of filtration membrane incasement, produce the water tank, connect the liquid outlet of filtration membrane group and the product water pipeline of the income liquid mouth of producing the water tank, be located the product water unit on the product water pipeline, wash the case, be used for to wash the in-box input unit of putting in the medicament, the return water pipeline of being connected product water pipeline and the income liquid mouth of wasing the case, connect the washing pipeline of the liquid outlet of wasing the case and the liquid outlet of filtration membrane group, be located the cleaning unit on the washing pipeline, the backwash pipeline of being connected product water tank's liquid outlet and washing pipeline, be located the backwash unit on the backwash pipeline, connect the soaking pipeline of the income liquid mouth of washing pipeline and filtration membrane case, the former water pipeline of being connected with the income liquid mouth of filtration membrane case. By acquiring and analyzing the operation data of the filtering membrane treatment system in real time, the cleaning of the filtering membrane system is intelligently controlled, and the membrane flux is effectively recovered.
Description
Technical Field
The utility model relates to a liquid processing technology field especially relates to an online cleaning system for filtration membrane.
Background
The membrane separation technology is a method for separating, purifying and concentrating a multi-component system by taking natural or artificially synthesized materials as media and under the action of external driving force (energy, pressure difference and the like). Compared with the traditional method, the method has the advantages of high efficiency, low energy consumption, simple process, small occupied area, no secondary pollution and the like, and is widely applied to the fields of petrochemical industry, seawater desalination, food processing, municipal sewage treatment and the like. The great challenge faced by the membrane separation technology is the membrane pollution problem, and during the separation process, the macromolecules or suspended particles dissolved in the liquid to be treated can deposit on the membrane pore wall and the membrane surface, block the membrane pores, reduce the membrane flux, shorten the service life of the membrane, and increase the energy consumption and the operation cost.
The membrane cleaning is an approach for effectively reducing membrane pollution, the existing tubular membrane treatment system is provided with a cleaning system, but due to the difference of professional technical level and responsibility of each operator, the membrane treatment system is not cleaned when being cleaned, or parameters are improperly controlled when being cleaned, membrane flux is reduced in the past for a long time, a membrane component is irreversibly damaged when being serious, and the service life of the membrane is shortened.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides an online cleaning system for filtration membrane solves untimely when manual operation washs or the poor cleaning performance problem that causes of parameter control when wasing.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
the device comprises a control system, a filter membrane box, a filter membrane group placed in the filter membrane box, a water production pipeline connecting a liquid outlet of the filter membrane group with a liquid inlet of the water production box, a water production unit arranged on the water production pipeline, a cleaning box, a feeding unit for feeding a medicament into the cleaning box, a water return pipeline connecting the water production pipeline with the liquid inlet of the cleaning box, a flushing pipeline connecting a liquid outlet of the cleaning box with a liquid outlet of the filter membrane group, a cleaning unit arranged on the flushing pipeline, a backwashing pipeline connecting the liquid outlet of the water production box with the flushing pipeline, a backwashing unit arranged on the backwashing pipeline, a soaking pipeline connecting the flushing pipeline with the liquid inlet of the filter membrane box, and a raw water pipeline connected with the liquid inlet of the filter membrane box; the connection part of the backwashing pipeline and the flushing pipeline is positioned at the downstream of the cleaning unit, and the connection part of the water production pipeline and the water return pipeline is positioned at the downstream of the water production unit; the water production system is characterized in that a soaking cleaning valve is arranged on the soaking pipeline, a water production outlet valve is further arranged on the water production pipeline and is positioned at the downstream of the joint of the water production pipeline and the water return pipeline, a water production circulating valve is arranged on the water return pipeline, and the water production unit, the cleaning unit, the backwashing unit, the soaking cleaning valve, the water production outlet valve and the water production circulating valve are all electrically connected with the control system.
Preferably, the putting unit comprises an acid cleaning storage tank, an alkali cleaning storage tank, an acid cleaning agent dosing pump, an acid cleaning agent liquid level meter, an alkali cleaning agent dosing pump and an alkali cleaning agent liquid level meter; the inlet of the acid cleaning agent dosing pump is connected with the liquid outlet of the acid cleaning storage tank, and the outlet of the acid cleaning agent dosing pump is connected with the liquid inlet of the cleaning tank; the entry of alkali cleaner dosing pump with the liquid outlet of alkali cleaning storage tank is connected and the export of alkali cleaner dosing pump with wash the income liquid mouth of case and connect, sour cleaner level gauge set up in the sour cleaning storage tank, alkali cleaner level gauge set up in the alkali cleaning storage tank, sour cleaning storage tank the alkali cleaning storage tank sour cleaner dosing pump the sour cleaner level gauge the alkali cleaner dosing pump and the alkali cleaner level gauge all with the control system electricity is connected.
Preferably, the water production unit comprises a water production valve, a negative pressure sensor, a water production pump and a water production flowmeter which are sequentially communicated, and the water production pump, the water production valve, the negative pressure sensor and the water production flowmeter are electrically connected with the control system.
Preferably, the cleaning unit comprises a cleaning water inlet valve, a cleaning pump, a cleaning filter and a cleaning valve which are sequentially communicated, and the cleaning pump, the cleaning water inlet valve and the cleaning valve are all electrically connected with the control system.
Preferably, the backwashing unit comprises a backwashing water inlet valve, a backwashing pump, a backwashing filter and a backwashing valve which are sequentially communicated, and the backwashing pump, the backwashing water inlet valve and the backwashing valve are all electrically connected with the control system.
Preferably, a raw water inlet valve is arranged on the raw water pipeline and electrically connected with the control system.
Preferably, be provided with online DO appearance and membrane pond level gauge in the filter membrane case, the bottom of filter membrane case is provided with the membrane pond blowoff valve, it produces the water tank level gauge to be provided with in the water tank, it washs the level gauge, washs PH gauge, electrical heating rod and temperature sensor to wash the incasement to be provided with, the bottom of wasing the case is provided with washs the blowoff valve, the membrane pond level gauge produce the water tank level gauge wash the level gauge online DO appearance the membrane pond blowoff valve wash the PH gauge electrical heating rod temperature sensor and wash the blowoff valve all with the control system electricity is connected.
Preferably, the online cleaning system further comprises a sludge treatment unit, wherein the sludge treatment unit comprises a sludge pipeline connected with the membrane tank emptying valve, a sludge pump arranged on the sludge pipeline, a sludge return pipeline and a sludge discharge pipeline connected with the sludge pipeline, a biological aerobic tank connected with the sludge return pipeline, and a sludge concentration tank connected with the sludge discharge pipeline; the sludge return pipeline is connected with the sludge pipeline at the downstream of the sludge pump, the sludge discharge pipeline is connected with the sludge pipeline at the downstream of the sludge pipeline, the sludge return pipeline is provided with a sludge return valve, the sludge discharge pipeline is provided with a sludge discharge valve, and the sludge pump, the sludge return valve and the sludge discharge valve are electrically connected with the control system.
Preferably, the online cleaning system further comprises a blower, an air inlet pipeline connected with the blower and the filter membrane group, and a tap water pipeline connected with a liquid inlet of the cleaning box, wherein a tap water valve is arranged on the tap water pipeline, and the blower and the tap water valve are electrically connected with the control system.
Preferably, the control system comprises an upper computer and a process controller which are electrically connected with each other.
(III) advantageous effects
The utility model has the advantages that: through the real-time collection and analysis of the operation data of the filtering membrane treatment system, the cleaning time, the cleaning period and the cleaning operation control parameters of the filtering membrane system are intelligently controlled, the membrane treatment system is cleaned in time, the membrane flux is effectively recovered, the service life of the membrane system is prolonged, and the problems of poor cleaning effect and possible irreversible damage to the membrane module caused by untimely manual operation cleaning or poor cleaning parameter control are solved, so that the industrial pain point is solved.
Drawings
FIG. 1 is a schematic structural diagram of an on-line cleaning system for a filtering membrane according to the present invention;
fig. 2 is a connection block diagram of the control system of the present invention.
[ description of reference ]
1: a membrane filtering box; 2: a water production tank; 3: a cleaning tank; 4: a filter membrane group; 5: an acid cleaning agent storage tank; 6: an alkaline cleaner storage tank; a: a blower; b: a biological aerobic tank; c: a sludge concentration tank; d: an upper computer; e: a process controller;
10: a water production pump; 11: a water production valve; 12: a water outlet valve for producing water; 111: a negative pressure sensor; 112: a produced water flow meter; 121: a membrane tank level gauge; 122: an online DO meter; 124: a raw water inlet valve; 125: a membrane tank evacuation valve;
20: a backwash pump; 21: backwashing the water inlet valve; 22: a backwash valve; 211: backwashing the filter; 221: a liquid level meter of the water production tank;
30: cleaning the pump; 31: cleaning the water inlet valve; 32: cleaning the valve; 33: cleaning a circulating valve; 34: soaking and cleaning the valve; 311: cleaning the filter; 321: cleaning the liquid level meter; 322: cleaning a pH meter; 323: an electrical heating rod; 324: a temperature sensor; 325: cleaning the emptying valve;
41: a water production circulation valve;
50: an acid cleaning agent dosing pump; 521: an acid cleaner level gauge;
60: an alkaline cleaner dosing pump; 621: an alkaline cleaner level meter;
70: a sludge pump; 71: a sludge reflux valve; 72: a sludge discharge valve;
81: a tap water valve.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides an online cleaning system for filtration membrane, as shown in figure 1, it includes: the device comprises a control system, a filter membrane box 1, a filter membrane group 4 placed in the filter membrane box 1, a water production box 2, a water production pipeline for connecting a liquid outlet of the filter membrane group 4 with a liquid inlet of the water production box 2, a water production unit arranged on the water production pipeline, a cleaning box 3, a feeding unit for feeding a medicament into the cleaning box 3, a water return pipeline for connecting the water production pipeline with the liquid inlet of the cleaning box 3, a flushing pipeline for connecting the liquid outlet of the cleaning box 3 with the liquid outlet of the filter membrane group 4, a cleaning unit arranged on the flushing pipeline, a backwashing pipeline for connecting the liquid outlet of the water production box 2 with the flushing pipeline, a backwashing unit arranged on the backwashing pipeline, a soaking pipeline for connecting the flushing pipeline with the liquid inlet of the filter membrane box 1, and a raw water pipeline connected with the liquid inlet of the filter membrane box 1; wherein, the joint of the backwashing pipeline and the flushing pipeline is positioned at the downstream of the cleaning unit, and the joint of the water production pipeline and the water return pipeline is positioned at the downstream of the water production unit; the soaking pipeline is provided with a soaking cleaning valve 34, the water production pipeline is also provided with a water production outlet valve 12 positioned at the downstream of the joint of the water production pipeline and the water return pipeline, the water return pipeline is provided with a water production circulating valve 41, and the water production unit, the cleaning unit, the backwashing unit, the soaking cleaning valve 34, the water production outlet valve 12 and the water production circulating valve 41 are all electrically connected with the control system which collects and analyzes data in real time and controls the cleaning time, the cleaning period and the cleaning operation control parameters of the filter membrane system to clean the membrane treatment system in time, so that the membrane flux is effectively recovered, and the service life of the membrane system is prolonged.
With the above embodiment, several cleaning modes, for example, a backwashing mode, an acid washing mode, an alkali washing mode, and a soaking cleaning mode, can be realized. Specifically, when the backwashing mode is operated, the filtered water in the water production tank 2 is used as cleaning water, the backwashing unit is used as conveying power, the cleaning water sequentially passes through the backwashing pipeline and the flushing pipeline, and reversely enters the filter membrane tank 1 from the liquid outlet of the filter membrane group 4 to complete the backwashing process. When the acid cleaning mode or the alkali cleaning mode is operated, the cleaning agent is put into the cleaning box 3 by the putting unit, the cleaning unit is used for conveying power, and the cleaning agent reversely enters the filter membrane box 1 from the liquid outlet of the filter membrane group 4 through the flushing pipeline to finish the cleaning process.
Wherein, soak the cleaning mode and include circulation washing and the soaking of stewing, put in the unit and put in the cleaner to wasing 3 incasement. Use filter membrane case 1 and washing case 3 as the connection terminal point, relative filter membrane case 1 says, use to wash the pipeline and soak the pipeline and be the admission pipeline, the admission pipeline is on the way, the cleaning unit is for carrying power, use product pipeline and return water pipeline as the drain pipe, the drain pipe is on the way, product water unit is for carrying power, form the annular layout, the cleaner is from wasing case 3 output, get into filter membrane case 1 through washing pipeline and soaking pipeline in proper order, the cleaner is exported from filter membrane case 1 again, return in the washing case 3 through product pipeline and return water pipeline in proper order, accomplish the circulation and wash. And closing the cleaning unit and the water production unit, wherein the cleaning agent cannot circulate, and is retained in the cleaning box 1 to finish standing and soaking.
Wherein, referring to fig. 2, control system includes host computer D and process controller E that mutual electric connection is connected, and the electricity is connected and can be wire connection or signal connection, each component specifically be for being connected with process controller E electricity, realize the collection, the processing and the sending of signal through process controller E. The abluent filter membrane group 4 can be used to multiple operating mode, like municipal sewage filters, sea water desalination and petrochemical etc. the utility model discloses filter membrane group 4 that uses when filtering with municipal sewage exemplifies for the cleaning object.
Referring again to fig. 1, in a preferred embodiment, the dosing unit comprises an acid cleaning reservoir 5, an alkaline cleaning reservoir 6, an acid cleaner dosing pump 50, an acid cleaner level gauge 521, an alkaline cleaner dosing pump 60, and an alkaline cleaner level gauge 621; wherein, the inlet of the acid cleaning agent dosing pump 50 is connected with the liquid outlet of the acid cleaning storage tank 5, and the outlet of the acid cleaning agent dosing pump 50 is connected with the liquid inlet of the cleaning tank 3; the entry of alkali cleaner dosing pump 60 is connected with the liquid outlet of alkali cleaning storage tank 6 and the export of alkali cleaner dosing pump 60 is connected with the income liquid mouth of wasing case 3, and acid cleaner level gauge 521 sets up in acid cleaning storage tank 5, and alkali cleaner level gauge 621 sets up in alkali cleaning storage tank 6, and acid cleaner dosing pump 50, acid cleaner level gauge 521, alkali cleaner dosing pump 60 and alkali cleaner level gauge 621 all are connected with the control system electricity.
Wherein, the acid cleaner that needs to use when acid cleaner storage tank 5 stores up the cleaning in advance, the acid cleaner level gauge 521 that acid cleaner storage tank 5 set up is used for the liquid level in the real-time supervision storage tank, when filling the cleaner to wasing case 33, in case detect the liquid level in the acid cleaner storage tank 5 and hang down excessively, acid cleaner level gauge 521 can send out the signal immediately and close acid cleaner dosing pump 50, avoid acid cleaner dosing pump 50 impaired because of low load operation, remind the staff in time to supply acid cleaner in the acid cleaner storage tank 5 simultaneously. Alkali cleaner storage tank 6 stores up the alkaline cleaner that needs to use when wasing in advance, the alkali cleaner level gauge 621 that alkali cleaner storage tank 6 set up is used for the liquid level in the real-time supervision storage tank, when filling the cleaner to wasing case 3, in case detect the liquid level in the alkali cleaner storage tank 6 and hang down excessively, alkali cleaner level gauge 621 can signals immediately and close alkali cleaner dosing pump 60, avoid alkali cleaner dosing pump 60 because of low load operation is impaired, remind the staff in time to supply alkaline cleaner in the alkali cleaner storage tank 6 simultaneously.
Specifically, as shown in fig. 1, the water production unit may preferably include a water production valve 11, a negative pressure sensor 111, a water production pump 10 and a water production flow meter 112, which are sequentially communicated, and the water production pump 10, the water production valve 11, the negative pressure sensor 111 and the water production flow meter 112 are all electrically connected with the control system. When the filter membrane group 4 filters sewage, the water production flow meter 112 and the negative pressure sensor 111 monitor the data of water flow in the water production pipeline in real time, and once the flow value is low or the negative pressure value is large, the water production flow meter 112 or the negative pressure sensor 111 can immediately send a signal and close the water production pump 10, and simultaneously remind a worker or automatically start a subsequent cleaning program according to a preset program.
Also, the wash unit may preferably include a wash feed valve 31, a wash pump 30, a wash filter 311, and a wash valve 32, which are sequentially communicated, and the wash pump 30, the wash feed valve 31, and the wash valve 32 are all electrically connected to the control system. Wash filter 311 and be arranged in filtering the large granule impurity in the washing liquid, avoid impurity to get into filter membrane group 4, block up the water production passageway of filter membrane group 4, the filtration specification of wasing filter 311 is less than the water production passageway of filter membrane group 4 to regularly change the filter core of wasing filter 311.
The backwashing unit can preferably comprise a backwashing water inlet valve 21, a backwashing pump 20, a backwashing filter 211 and a backwashing valve 22 which are communicated in sequence, wherein the backwashing pump 20, the backwashing water inlet valve 21 and the backwashing valve 22 are all electrically connected with the control system. The backwash filter 211 is used for filtering large-particle impurities in backwash water, the impurities are prevented from entering the filter membrane group 4 to block a water production channel of the filter membrane group 4, the filtering specification of the backwash filter 211 is smaller than the water production channel of the filter membrane group 4, and a filter element of the backwash filter 211 is replaced regularly. In addition, a raw water inlet valve 124 is arranged on the raw water pipeline, and the raw water inlet valve 124 is electrically connected with the control system. In other embodiments, the water production unit, the cleaning unit, and the backwashing unit may be provided by using other combinations of valves and pumps.
Further, referring to fig. 1 again, in a preferred embodiment, an online DO meter 122 and a membrane pool level meter 121 are disposed in the membrane filtration tank 1, a membrane pool emptying valve 125 is disposed at the bottom of the membrane filtration tank 1, a product water tank 2 level meter 221 is disposed in the product water tank 2, a cleaning level meter 321, a cleaning PH meter 322, an electric heating rod 323 and a temperature sensor 324 are disposed in the cleaning tank 3, a tap water pipeline is disposed at a liquid inlet of the cleaning tank 3, a cleaning emptying valve 325 is disposed at the bottom of the cleaning tank 3, a tap water valve 81 is disposed on the tap water pipeline, and the membrane pool level meter 121, the product water tank 2 level meter 221, the cleaning level meter 321, the online DO meter 122, the membrane pool emptying valve 125, the cleaning PH meter 322, the electric heating rod 323, the temperature sensor 324, the cleaning emptying valve 325 and the tap water valve are all electrically connected to the control system. When the cleaning system is used for the biofilm type cleaning, the online DO meter can monitor the dissolved oxygen amount of the sewage in the filter membrane box 1 in real time. The membrane tank liquid level meter 121 monitors the liquid level of the sewage in the membrane tank 1 in real time, the control system controls the state of the raw water inlet valve 124 by acquiring data of the membrane tank liquid level meter 121, the raw water inlet valve 124 is opened when the liquid level reaches the lowest set value to replenish the sewage in the membrane tank 1, and the raw water inlet valve 124 is closed when the liquid level reaches the highest set liquid level to avoid overflow of the sewage. When the liquid level in the cleaning tank 3 is low, the water producing and discharging valve 12 may be closed, and the water producing valve 11, the water producing pump 10 and the water producing circulating valve 41 may be opened to supply water to the cleaning tank 3, in addition to the manner of opening the tap water valve 81 to supply water.
Wherein, the membrane tank emptying valve 125 is used for discharging the sewage in the filtration membrane box 1, and the liquid level gauge 221 of the water production box 2 monitors the liquid level in the water production box 2 in real time, and when the liquid level is lower than the set lowest liquid level, the liquid level immediately sends out a signal and closes the backwashing pump 20, so that the backwashing pump 20 is prevented from being damaged due to low-load operation. The cleaning liquid level meter 321 monitors the liquid level in the cleaning tank 3 in real time, the tap water valve 81 is automatically closed when the cleaning tank 3 is filled with tap water, the cleaning liquid level meter 321 immediately sends a signal and closes the corresponding dosing pump when the liquid level reaches the highest point of the set liquid level in the process of filling the cleaning tank 3 with a cleaning agent, and the cleaning pump 30 immediately sends a signal and closes the cleaning pump 30 when the liquid level reaches the lowest point of the set liquid level, so that the cleaning pump 30 is prevented from being damaged due to low-load operation. The cleaning pH meter 322 can set the pH value to start the dosing pump and the tap water valve 81 to fill liquid into the cleaning tank 3, and can monitor the pH value of the cleaning agent in the cleaning tank 3 in real time to ensure that the liquid in the cleaning tank 3 is the set pH value. The electric heating rod 323 and the temperature sensor 324 are used in a matching way to heat the cleaning agent in the cleaning box 3 and control the temperature of the liquid to be a set value, wherein, when the alkaline cleaning mode and the soaking cleaning mode are operated, the temperature sensor 324 can also monitor the temperature in the cleaning box 3 in real time, and the cleaning pump 30 can be immediately closed when the maximum value of the set temperature is reached, thereby avoiding damaging the filter membrane group 4 due to overhigh temperature.
In addition, the cleaning system may further include a sludge treatment unit, the sludge treatment unit includes a sludge pipeline connected to the membrane tank emptying valve 125, a sludge pump 70 disposed on the sludge pipeline, a sludge return pipeline and a sludge discharge pipeline connected to the sludge pipeline, a biological aerobic tank B connected to the sludge return pipeline, and a sludge concentration tank C connected to the sludge discharge pipeline; the joint of the sludge return pipeline and the sludge pipeline is positioned at the downstream of the sludge pump 70, the joint of the sludge discharge pipeline and the sludge pipeline is positioned at the downstream of the sludge pipeline 70, the sludge return pipeline is provided with a sludge return valve 71, the sludge discharge pipeline is provided with a sludge discharge valve 72, and the sludge pump 70, the sludge return valve 71 and the sludge discharge valve 72 are all electrically connected with the control system. The sludge discharge unit is used for discharging a mixture of sludge and sewage in the filter membrane box 1, the sludge and the sewage in the filter membrane box 1 need to be emptied before the acid washing mode, the alkali washing mode and the soaking and cleaning mode are operated, the cleaning effect is prevented from being lost after cleaning liquid and sewage are mixed, and the sludge and the sewage are discharged to the biological aerobic tank and the sludge concentration tank for cyclic utilization.
The cleaning system also comprises a blower A for supplying oxygen to the filter membrane group 4 and an air inlet pipeline for connecting the blower A and the filter membrane group 4, and the blower A is electrically connected with the control system. When the cleaned object is a biological membrane type, such as an MBR membrane, the online DO meter 122 monitors the dissolved oxygen amount of the sewage in real time, and if the dissolved oxygen amount in the sewage is lower than a set value, the online DO meter 122 immediately finds a signal and starts the blower A to add oxygen to the filter membrane group 4, so that the normal operation of the filter membrane group 4 is ensured.
The on-line cleaning of the filter membrane group 4 comprises a back washing mode, an acid washing mode, an alkali washing mode and a soaking cleaning mode, after the filter membrane group 4 continuously runs for a set time, a control system automatically starts the back washing mode, a sewage filtering program is continuously run after the back washing mode is executed, in the water production process, a water production flowmeter 112 and a negative pressure sensor 111 on a water production pipeline monitor corresponding numerical values in real time, when the reading of the water production flowmeter 112 is lower than a set value or the reading of the negative pressure sensor 111 is greater than the set value, a prompt signal is automatically sent to a host computer D, the filter membrane group 4 is subsequently cleaned again in the acid washing mode or the alkali washing mode, the duration time of the three cleaning modes can be corrected according to the actual cleaning effect, after the cleaning of the filter membrane group 4 in the acid washing mode or the alkali washing mode is finished, when the reading of the water production flowmeter 112 is lower than the set value or the reading of the negative pressure, a soak cleaning mode is performed.
Wherein, the numerical values of the water production flowmeter 112 and the negative pressure sensor 111 are set by the staff on the upper computer in advance, so as to achieve the normal water production as the optimal scheme.
The back washing mode comprises the following specific steps:
s1, the filter membrane group 4 continuously runs for a set time, and after the water production pump 10 is automatically closed for a preset time, the water production valve 11 and the water production and outlet valve 12 are closed;
s2, automatically opening the backwashing water inlet valve 21, the backwashing valve 22 and the cleaning circulating valve 33 in sequence for a preset time, then opening the backwashing pump 20, automatically closing the backwashing pump 20 after automatically running for a set time, automatically closing the backwashing water inlet valve 21, the backwashing valve 22 and the cleaning circulating valve 33 in sequence after the backwashing pump 20 is closed for the preset time, and ending the backwashing mode.
Wherein, the operation in the back flush mode is related to the liquid level of the water production tank 2, the set liquid level of the water production tank 2 is not reached, and the back flush mode can not be started so as to protect the back flush pump 20. In addition, still be equipped with the washing filter 211 that is used for filtering backwash water impurity on the backwash pipeline, avoid impurity to get into filter group 4, block up filter group 4's water production passageway, the filtration specification of washing filter 211 is less than filter group 4's water production passageway to regularly change the filter core of washing filter 211. The starting time interval and the backwashing time of the backwashing mode are flexibly adjusted according to the actual running condition of the filter membrane group 4. And after the backwashing mode is finished, the water producing valve 11 and the water producing and discharging valve 12 are automatically opened for a preset time, then the water producing pump 10 is started, and sewage filtering is continuously carried out.
The pickling mode comprises the following specific steps:
s1, after the raw water inlet valve 124 and the water production pump 10 are automatically closed for a preset time, the water production valve 11 and the water production outlet valve 12 are closed;
s2, after an acidity value is set by the cleaning PH meter 322, the membrane tank emptying valve 125 and the sludge return valve 71 are automatically opened for a preset time, and then the sludge pump 70 is automatically opened; the lowest liquid level is set by the membrane tank liquid level meter 121 to control the opening and closing of the sludge pump 70, the membrane tank emptying valve 125 and the sludge return valve 71, when the liquid level in the filter membrane box 1 reaches the set lowest liquid level value, the sludge pump 70 is automatically closed, and after a preset time, the membrane tank emptying valve 125 and the sludge return valve 71 are automatically closed;
s3, automatically opening the tap water valve 81, controlling the opening and closing of the tap water valve 81 by detecting the liquid level through the cleaning liquid level meter 321, automatically closing the tap water valve 81 when the liquid level in the cleaning tank 3 reaches a set liquid level value, automatically opening the electric heating rod 323, heating the liquid in the cleaning tank 3, monitoring the temperature of the liquid in the cleaning tank 3 through the temperature sensor 324, automatically closing the electric heating rod 323 when the temperature of the liquid in the cleaning tank 3 reaches the set temperature, and maintaining the temperature of the liquid in the cleaning tank 3 at a set value;
s4, automatically starting the acid cleaning agent dosing pump 521, monitoring the pH value of the liquid in the cleaning tank 3 through the cleaning pH meter 322, and automatically stopping the acid cleaning agent dosing pump 521 when the pH value of the liquid in the cleaning tank 3 reaches a set value, so as to maintain the pH value in the cleaning tank 3 as the set value;
s5, automatically opening the cleaning water inlet valve 31, the cleaning valve 32 and the cleaning circulating valve 33 for a preset time, starting the cleaning pump 30 to enter an acid washing mode, automatically closing the cleaning pump 30 after the acid washing mode runs for the preset time, automatically closing the cleaning water inlet valve 31, the cleaning valve 32 and the cleaning circulating valve 33 in sequence after the cleaning pump 30 is closed for the preset time, and stopping the acid washing mode;
s6, the operation of the pickling mode is simultaneously associated with the liquid level of the cleaning box 3, the pickling mode cannot be started to protect the cleaning pump 30 when the liquid level of the cleaning box 3 is not reached, and the pickling mode automatically stops to protect the cleaning pump 30 when the liquid level is lower than the set lowest liquid level of the cleaning box 3;
s7, filtering impurities in liquid in the cleaning tank 3 by the cleaning filter 311 on the cleaning pipeline, preventing the impurities from entering the filter membrane group 4 and blocking a water production channel of the filter membrane group 4, wherein the filtering specification of the cleaning filter 311 is smaller than that of the filter membrane group 44, and the filter element of the cleaning filter 311 is replaced regularly;
s8, flexibly adjusting the cleaning time of the acid washing mode according to the actual running condition of the filtering treatment of the sewage by the filter membrane group 4;
s9, automatically opening the cleaning evacuation valve 325 after the acid washing mode is stopped, evacuating the liquid in the cleaning tank 3, and ending the acid washing mode;
and S10, automatically opening the water producing valve 11 and the water producing and discharging valve 12 after the acid washing mode is finished, and then opening the water producing pump 10 to continue sewage filtration.
The alkali washing mode comprises the following specific steps:
s1, after the raw water inlet valve 124 and the water production pump 10 are automatically closed for a preset time, the water production valve 11 and the water production outlet valve 12 are closed;
s2, after an alkaline value is set by the cleaning PH meter 322, the membrane tank emptying valve 125 and the sludge return valve 71 are automatically opened for a preset time, and then the sludge pump 70 is automatically opened; the opening and closing of the sludge pump 70, the membrane tank emptying valve 125 and the sludge return valve 71 are controlled by setting the lowest liquid level through the membrane tank liquid level meter 121, and the membrane tank emptying valve 125 and the sludge return valve 71 are automatically closed after the sludge pump 70 is automatically closed for a preset time when the liquid level in the filter membrane box 1 reaches the set lowest liquid level value;
s3, automatically opening the tap water valve 81, detecting the opening and closing of the liquid level control tap water valve 81 through the cleaning liquid level meter 321, automatically closing the tap water valve 81 when the liquid level in the cleaning tank 3 reaches a set liquid level value, automatically opening the electric heating rod 323, heating the liquid in the cleaning tank 3, monitoring the temperature of the liquid in the cleaning tank 3 through the temperature sensor 324, automatically closing the electric heating rod 323 when the temperature of the liquid in the cleaning tank 3 reaches the set temperature, and maintaining the temperature of the liquid in the cleaning tank 3 to be a set value;
s4, automatically starting the alkali cleaning agent dosing pump 60, monitoring the pH value of the liquid in the cleaning tank 3 through the cleaning pH meter 322, automatically stopping the operation of the alkali cleaning agent dosing pump 60 when the pH value of the liquid in the cleaning tank 3 reaches a set value, and continuously maintaining the pH value in the cleaning tank 3 as the set value;
s5, automatically opening the cleaning water inlet valve 31, the cleaning valve 32 and the cleaning circulating valve 33 for a preset time, starting the cleaning pump 30 to enter an alkaline cleaning mode, automatically closing the cleaning pump 30 after the alkaline cleaning mode runs for the preset time, automatically closing the cleaning water inlet valve 31, the cleaning valve 32 and the cleaning circulating valve 33 in sequence after the cleaning pump 30 is closed for the preset time, and stopping the alkaline cleaning mode;
s6, the alkaline washing mode is operated and is simultaneously associated with the liquid level of the washing tank 3, the alkaline washing mode cannot be started to protect the washing pump 30 when the liquid level of the washing tank 3 is not reached, and the alkaline washing mode is automatically stopped to protect the washing pump 30 when the liquid level is lower than the set lowest liquid level of the washing tank 3;
s7, filtering impurities in liquid in the cleaning box 3 by the cleaning filter 311 on the cleaning pipeline, preventing the impurities from entering the filter membrane group 4 and blocking a water production channel of the filter membrane group 4, wherein the filtering specification of the cleaning filter 311 is smaller than that of the filter membrane group 4, and the filter element of the cleaning filter 311 is replaced regularly;
s8, flexibly adjusting the cleaning time of the alkaline cleaning mode according to the actual running condition of the filtering treatment of the sewage by the filter membrane group 4;
s9, automatically starting a cleaning exhaust valve 325 after the alkaline cleaning mode is stopped, exhausting the liquid in the cleaning tank 3, and ending the alkaline cleaning mode;
and S10, automatically opening the water producing valve 11 and the water producing and discharging valve 12 after the alkaline cleaning mode is finished, and then opening the water producing pump 10 to continue sewage filtration.
The soaking and cleaning mode comprises the following specific steps:
s1, after the raw water inlet valve 124 and the water production pump 10 are automatically closed for a preset time, the water production valve 11 and the water production outlet valve 12 are closed;
s2, after an alkaline value is set by the cleaning PH meter 322, the membrane tank emptying valve 125 and the sludge return valve 71 are automatically opened for a preset time, and then the sludge pump 70 is automatically opened; the opening and closing of the sludge pump 70, the membrane tank emptying valve 125 and the sludge return valve 71 are controlled by setting the lowest liquid level through the membrane tank liquid level meter 121, and the membrane tank emptying valve 125 and the sludge return valve 71 are automatically closed after the sludge pump 70 is automatically closed for a preset time when the liquid level in the filter membrane box 1 reaches the set lowest liquid level value;
s3, automatically opening the tap water valve 81, detecting the opening and closing of the liquid level control tap water valve 81 through the cleaning liquid level meter 321, automatically closing the tap water valve 81 when the liquid level in the cleaning tank 3 reaches a set liquid level value, automatically opening the electric heating rod 323, heating the liquid in the cleaning tank 3, monitoring the temperature of the liquid in the cleaning tank 3 through the temperature sensor 324, automatically closing the electric heating rod 323 when the temperature of the liquid in the cleaning tank 3 reaches the set temperature, and maintaining the temperature of the liquid in the cleaning tank 3 to be a set value;
s4, automatically starting the alkali cleaning agent dosing pump 60, monitoring the pH value of the liquid in the cleaning tank 3 through the cleaning pH meter 322, automatically stopping the operation of the alkali cleaning agent dosing pump 60 when the pH value of the liquid in the cleaning tank 3 reaches a set value, and continuously maintaining the pH value in the cleaning tank 3 as the set value;
s5, automatically starting the cleaning pump 30 after the cleaning water inlet valve 31, the cleaning valve 32 and the soaking cleaning valve 34 are automatically opened for a preset time; when the liquid level of the membrane tank 3 reaches a set liquid level in the soaking and cleaning mode, automatically opening the water production valve 11 and the water production circulating valve 41 for a preset time, starting the water production pump 10, and circularly soaking the filter membrane group 4 in the soaking and cleaning mode;
s6, the operation of the soaking and cleaning mode is simultaneously associated with the liquid level of the cleaning tank 3, the soaking and cleaning mode cannot be started to protect the cleaning pump 30 when the liquid level of the cleaning tank 3 is not reached, and the soaking and cleaning mode automatically stops to protect the cleaning pump 30 when the liquid level is lower than the set lowest liquid level of the cleaning tank 3;
s7, in the soaking and cleaning mode, along with the increase of the cleaning time, the liquid temperature can continuously rise, when the temperature in the cleaning box 3 is higher than the set value, the water production pump 10 and the cleaning pump 30 are automatically closed for a preset time, the cleaning water inlet valve 31, the cleaning valve 32, the soaking and cleaning valve 34, the water production valve 11 and the water production circulating valve 12 are automatically closed, and only the filter membrane group 4 is soaked in the filter membrane box 1;
s8, flexibly adjusting the time of the soaking and cleaning mode according to the actual running condition of the filtering treatment of the sewage by the filter membrane group 4;
s9, automatically opening the cleaning evacuation valve 325 after the soaking and cleaning mode is stopped, evacuating the liquid in the cleaning tank 3, and ending the soaking and cleaning mode;
and S10, after the soaking and washing mode is finished, automatically opening the water producing valve 11 and the water producing and discharging valve 12 for a preset time, then opening the water producing pump 10, and continuing to filter the sewage.
In a preferred embodiment, the valve or pump may be closed for a period of 5 to 10 seconds, preferably 10 seconds; since the high pressure in the pipe is maintained for a certain period of time when the pump is turned off, if the valve of the corresponding pipe is immediately turned off after the pump is turned off, the high pressure in the pipe damages the sealing member of the valve during the valve turning-off process, which may damage the valve in the past, and if the pump is turned on immediately after the opening or closing process of the valve is started, the pump is also damaged in a state of incomplete opening or closing because the opening or closing of the valve requires an operation time.
In addition, in a preferred embodiment, the level value set by each liquid level meter is preset by the upper computer according to the capacity of the tank body, and the corresponding maximum liquid level and the corresponding minimum liquid level are preset by the upper computer.
In a preferred embodiment, the set value of the cleaning PH meter in the cleaning tank 3 may be 6 to 2 or 8 to 12, preferably 2 or 12, in order to achieve the best cleaning effect. The heating temperature in the cleaning tank 3 can be 20-40 ℃, preferably 35 ℃, so that the cleaning solution can achieve the best cleaning effect and the required heating energy consumption is low.
Regarding the operation time of each mode, in a preferred embodiment, the operation time of the back washing mode, the acid washing mode and the alkali washing mode may be 30min to 90min, and is preferably 35min, so that the optimal cleaning effect can be achieved and the cleaning time can be saved.
In a preferred embodiment, when the soaking and cleaning mode is operated, the liquid temperature continuously rises along with the increase of the cleaning time, when the temperature in the cleaning tank 3 is higher than a set value, the water production pump 10 and the cleaning pump 30 are automatically closed for a preset time period, the cleaning water inlet valve 31, the cleaning valve 32, the soaking and cleaning valve 34, the water production valve 11 and the water production circulation valve 41 are automatically closed, only the filter membrane group 4 is soaked in the filter membrane tank 1, the set temperature is preset by the upper computer D, the set temperature value can be determined according to the type of the filter membrane group 4 to be cleaned, so that the filter membrane group 4 is prevented from being damaged due to overhigh temperature, and in addition, the soaking time of the filter membrane group 4 can be set by the upper computer D according to the actual cleaning condition, so that the optimal cleaning effect is achieved.
The filter membrane group 4 is cleaned respectively according to the set program in four modes, the cleaning mode matched during cleaning and the operation of each mode are operated and completed by the set program of the control system, the online cleaning in four modes is adopted, the cleaning operation is completely controlled and completed by the control system when the filter membrane group 4 is cleaned more thoroughly, the manual participation is not needed, the filter membrane group 4 does not need to be taken out for independent cleaning, a large amount of labor and cleaning time are saved, the operating efficiency of the sewage filtering system is improved to the maximum extent, and the intelligent environment-friendly and energy-saving calling is responded.
It should be understood that the above description of the embodiments of the present invention is only for illustrating the technical lines and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but the present invention is not limited to the above specific embodiments. All changes and modifications that come within the scope of the claims are to be embraced within their scope.
Claims (10)
1. An in-line cleaning system for a filtration membrane, the in-line cleaning system comprising: the device comprises a control system, a filter membrane box, a filter membrane group placed in the filter membrane box, a water production pipeline connecting a liquid outlet of the filter membrane group with a liquid inlet of the water production box, a water production unit arranged on the water production pipeline, a cleaning box, a feeding unit for feeding a medicament into the cleaning box, a water return pipeline connecting the water production pipeline with the liquid inlet of the cleaning box, a flushing pipeline connecting a liquid outlet of the cleaning box with a liquid outlet of the filter membrane group, a cleaning unit arranged on the flushing pipeline, a backwashing pipeline connecting the liquid outlet of the water production box with the flushing pipeline, a backwashing unit arranged on the backwashing pipeline, a soaking pipeline connecting the flushing pipeline with the liquid inlet of the filter membrane box, and a raw water pipeline connected with the liquid inlet of the filter membrane box; the connection part of the backwashing pipeline and the flushing pipeline is positioned at the downstream of the cleaning unit, and the connection part of the water production pipeline and the water return pipeline is positioned at the downstream of the water production unit; the water production system is characterized in that a soaking cleaning valve is arranged on the soaking pipeline, a water production outlet valve is further arranged on the water production pipeline and is positioned at the downstream of the joint of the water production pipeline and the water return pipeline, a water production circulating valve is arranged on the water return pipeline, and the water production unit, the cleaning unit, the backwashing unit, the soaking cleaning valve, the water production outlet valve and the water production circulating valve are all electrically connected with the control system.
2. The in-line cleaning system for filtration membranes of claim 1, wherein: the throwing unit comprises an acid cleaning storage tank, an alkali cleaning storage tank, an acid cleaning agent dosing pump, an acid cleaning agent liquid level meter, an alkali cleaning agent dosing pump and an alkali cleaning agent liquid level meter; the inlet of the acid cleaning agent dosing pump is connected with the liquid outlet of the acid cleaning storage tank, and the outlet of the acid cleaning agent dosing pump is connected with the liquid inlet of the cleaning tank; the entry of alkali cleaner dosing pump with the liquid outlet of alkali washing storage tank is connected and the export of alkali cleaner dosing pump with wash the income liquid mouth of case and connect, sour cleaner level gauge set up in the sour storage tank that washs, alkali cleaner level gauge set up in the alkali washing storage tank, sour cleaner dosing pump acid cleaner level gauge alkali cleaner dosing pump and alkali cleaner level gauge all with the control system electricity is connected.
3. The in-line cleaning system for filtration membranes according to claim 1 or 2, wherein: the water producing unit comprises a water producing valve, a negative pressure sensor, a water producing pump and a water producing flowmeter which are sequentially communicated, and the water producing pump, the water producing valve, the negative pressure sensor and the water producing flowmeter are electrically connected with the control system.
4. The in-line cleaning system for filtration membranes according to claim 1 or 2, wherein: the cleaning unit comprises a cleaning water inlet valve, a cleaning pump, a cleaning filter and a cleaning valve which are sequentially communicated, and the cleaning pump, the cleaning water inlet valve and the cleaning valve are all electrically connected with the control system.
5. The in-line cleaning system for filtration membranes according to claim 1 or 2, wherein: the backwashing unit comprises a backwashing water inlet valve, a backwashing pump, a backwashing filter and a backwashing valve which are sequentially communicated, and the backwashing pump, the backwashing water inlet valve and the backwashing valve are all electrically connected with the control system.
6. The in-line cleaning system for filtration membranes according to claim 1 or 2, wherein: and a raw water inlet valve is arranged on the raw water pipeline and is electrically connected with the control system.
7. The in-line cleaning system for filtration membranes according to claim 1 or 2, wherein: the utility model discloses a water purification device, including filtration membrane case, production water tank, washing case, online DO appearance, membrane pond level gauge, washing case, electric heating rod and temperature sensor, be provided with online DO appearance and membrane pond level gauge in the filtration membrane case, the bottom of filtration membrane case is provided with the membrane pond blowoff valve, be provided with the product water tank level gauge in the production water tank, it washs the level gauge, washs the PH gauge, online DO appearance, the membrane pond blowoff valve wash the PH gauge electric heating rod temperature sensor and wash the blowoff valve all with the control system electricity is connected.
8. The in-line cleaning system for filtration membranes of claim 7, wherein: the online cleaning system also comprises a sludge treatment unit, wherein the sludge treatment unit comprises a sludge pipeline connected with the membrane tank emptying valve, a sludge pump arranged on the sludge pipeline, a sludge return pipeline and a sludge discharge pipeline connected with the sludge pipeline, a biological aerobic tank connected with the sludge return pipeline and a sludge concentration tank connected with the sludge discharge pipeline; the sludge return pipeline is connected with the sludge pipeline at the downstream of the sludge pump, the sludge discharge pipeline is connected with the sludge pipeline at the downstream of the sludge pump, the sludge return pipeline is provided with a sludge return valve, the sludge discharge pipeline is provided with a sludge discharge valve, and the sludge pump, the sludge return valve and the sludge discharge valve are electrically connected with the control system.
9. The in-line cleaning system for filtration membranes according to claim 1 or 2, wherein: the online cleaning system further comprises an air blower, an air inlet pipeline connected with the air blower and the filter membrane group, and a tap water pipeline connected with a liquid inlet of the cleaning box, wherein a tap water valve is arranged on the tap water pipeline, and the air blower and the tap water valve are electrically connected with the control system.
10. The in-line cleaning system for filtration membranes according to claim 1 or 2, wherein: the control system comprises an upper computer and a process controller which are electrically connected with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920506653.5U CN209809946U (en) | 2019-04-15 | 2019-04-15 | Online cleaning system for filtering membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920506653.5U CN209809946U (en) | 2019-04-15 | 2019-04-15 | Online cleaning system for filtering membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209809946U true CN209809946U (en) | 2019-12-20 |
Family
ID=68879975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920506653.5U Active CN209809946U (en) | 2019-04-15 | 2019-04-15 | Online cleaning system for filtering membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209809946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921996A (en) * | 2020-07-27 | 2020-11-13 | 烽火通信科技股份有限公司 | Online cleaning system and method suitable for OVD deposition equipment |
| CN112354370A (en) * | 2020-11-12 | 2021-02-12 | 浙江天行健水务有限公司 | Ceramic membrane chemical cleaning waste liquid treatment process |
| CN114632424A (en) * | 2022-04-28 | 2022-06-17 | 华能威海发电有限责任公司 | Acid-base comprehensive compensation system and method for chemical cleaning of reverse osmosis membrane |
-
2019
- 2019-04-15 CN CN201920506653.5U patent/CN209809946U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921996A (en) * | 2020-07-27 | 2020-11-13 | 烽火通信科技股份有限公司 | Online cleaning system and method suitable for OVD deposition equipment |
| CN112354370A (en) * | 2020-11-12 | 2021-02-12 | 浙江天行健水务有限公司 | Ceramic membrane chemical cleaning waste liquid treatment process |
| CN114632424A (en) * | 2022-04-28 | 2022-06-17 | 华能威海发电有限责任公司 | Acid-base comprehensive compensation system and method for chemical cleaning of reverse osmosis membrane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209809946U (en) | Online cleaning system for filtering membrane | |
| CN203043849U (en) | Self-control ultrafiltration system | |
| CN106396159A (en) | System and method for water production management of direct drinking water producer | |
| CN205990637U (en) | A kind of secondary water supply system with purification function | |
| CN104140172B (en) | A kind of Seawater desalination pretreatment method | |
| CN210521873U (en) | Full-automatic shallow sand filter | |
| CN209583711U (en) | Mutual backwashing ultrafiltration device | |
| CN209809945U (en) | Soaking and cleaning system for filtering membrane | |
| CN209809944U (en) | Composite cleaning system for filtering membrane | |
| CN108117113B (en) | Direct drinking machine control method | |
| CN201346126Y (en) | Novel water dispenser and water purifier | |
| CN216946335U (en) | Multifunctional membrane device and system thereof | |
| CN2910907Y (en) | Water treatment equipment able to recover total concentration water | |
| CN104803516A (en) | Integrated container type sea water desalting equipment and desalting process thereof | |
| CN206069461U (en) | Anti-penetration water purifier | |
| CN205099414U (en) | Reverse osmosis water treatment equipment | |
| CN212327957U (en) | Self-cleaning intelligent ultrafiltration membrane pool device | |
| CN108064795A (en) | A kind of energy-efficient circulating water culture system | |
| CN209019989U (en) | A kind of self-cleaning filter device of water treatment system | |
| CN208603872U (en) | A kind of micro- waste water water purification system | |
| CN110057613B (en) | Water efficiency testing system and method for drinking water purifier | |
| CN209210442U (en) | A kind of immersion gravity stream ceramic membrane microkinetic ultrafiltration system sewage disposal device | |
| CN208526063U (en) | A kind of coke-stove gas separation equipment is counter online to clean automatic control device | |
| CN206828278U (en) | A kind of water purifier of intelligent control | |
| CN207046985U (en) | A kind of nickel-containing waste water treatment for reuse system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |