CN210131545U - Reverse osmosis online automatic cleaning device - Google Patents
Reverse osmosis online automatic cleaning device Download PDFInfo
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- CN210131545U CN210131545U CN201920926473.2U CN201920926473U CN210131545U CN 210131545 U CN210131545 U CN 210131545U CN 201920926473 U CN201920926473 U CN 201920926473U CN 210131545 U CN210131545 U CN 210131545U
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Abstract
The utility model provides an online self-cleaning device of reverse osmosis, include reverse osmosis membrane system, produce the water tank, wash water tank and chemical tank: the reverse osmosis membrane system is provided with a forward washing liquid inlet, a forward washing liquid outlet, a reverse washing liquid inlet and a reverse washing liquid outlet, a first electromagnetic valve is arranged on a pipeline of the forward washing liquid inlet, and a second electromagnetic valve is arranged on a pipeline between the forward washing liquid outlet and the water production tank; the positive washing liquid outlet is communicated with the top of the washing water tank through a pipeline and a third electromagnetic valve, and the lower part of the washing water tank is communicated with the back washing liquid inlet through a washing water pump through a pipeline; and the backwashing liquid outlet is communicated with the top of the cleaning water tank through a fourth electromagnetic valve and a flowmeter through a pipeline. This online self-cleaning device of reverse osmosis has that degree of automation is higher, artificial intervention still less, the cleaning time reduces and advantage such as water production ability, and its easy and simple to handle, and control is more convenient science, has good popularization and application and worth.
Description
Technical Field
The utility model relates to a water treatment technical field especially relates to an online self-cleaning device of reverse osmosis, is applicable to the washing of the reverse osmosis membrane that pure water preparation in-process relates.
Background
The reverse osmosis membrane is widely applied to the fields of electroplating industry, water for medicine industry, cosmetic industry, pharmaceutical industry and the like. The reverse osmosis membrane component is the most expensive component of the reverse osmosis system, and can be replaced after years of use through proper use and maintenance. When the reverse osmosis membrane system operates for a certain time, a layer of pollutants is deposited in the reverse osmosis membrane assembly to influence the performance of the reverse osmosis membrane, and then the reverse osmosis membrane assembly needs to be cleaned to recover the performance.
The reverse osmosis membrane in the current reverse osmosis membrane module may be contaminated by inorganic dirt, colloids, microorganisms, metal oxides, etc., which are deposited on the membrane surface, causing a decrease in the permeation amount and a decrease in salt rejection rate of the reverse osmosis membrane. Therefore, in order to restore the permeation amount and the desalting performance of the reverse osmosis membrane, it is necessary to periodically perform on-line chemical cleaning of the reverse osmosis membrane.
And the reverse osmosis membrane cleaning device for conventional cleaning generally adopts a cleaning water tank, a cleaning water pump, a cleaning filter and simple pipeline connection. The reverse osmosis membrane cleaning device is manually operated, has high labor intensity, inaccurate dosage concentration and poor cleaning effect, can not thoroughly clean pollutants on the membrane, and can greatly reduce the performance of the reverse osmosis membrane, and when acid-base agents are switched during cleaning, the cleaning time is long, a large amount of time is wasted, the cleaning time is prolonged, the operation period is shortened, and the reverse osmosis capacity is influenced
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the problem that current reverse osmosis membrane belt cleaning device exists, provide one kind and carry through the signal of telecommunication and reach online self-cleaning purpose reverse osmosis online self-cleaning device, have great improvement to abluent effect, personnel's working strength obviously reduces.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:
the utility model provides an online automatic reverse osmosis cleaning device, which comprises a reverse osmosis membrane system, a water production tank, a cleaning water tank and a chemical tank, wherein the chemical tank is communicated with the cleaning water tank through a pipeline; wherein: the reverse osmosis membrane system is provided with a forward washing liquid inlet, a forward washing liquid outlet, a reverse washing liquid inlet and a reverse washing liquid outlet, a first electromagnetic valve is arranged on a pipeline of the forward washing liquid inlet, and a second electromagnetic valve is arranged on a pipeline between the forward washing liquid outlet and the water production tank; the forward washing liquid outlet is communicated with the top of the washing water tank through a third electromagnetic valve through a pipeline, and the lower part of the washing water tank is communicated with the backwashing liquid inlet through a washing water pump through a pipeline; and the backwashing liquid outlet is communicated with the top of the cleaning water tank through a fourth electromagnetic valve and a flowmeter through a pipeline.
Furthermore, on the reverse osmosis online automatic cleaning device, a high-pressure pump and a raw water pump are sequentially arranged on a pipeline at the forward washing liquid inlet.
Furthermore, on the reverse osmosis on-line automatic cleaning device, a concentrated discharge valve is also arranged on the reverse osmosis membrane system.
Furthermore, on the reverse osmosis online automatic cleaning device, a cleaning filter is arranged on a pipeline between the cleaning water pump and the backwashing liquid inlet.
Furthermore, on the reverse osmosis online automatic cleaning device, a medicament pump is arranged on a pipeline between the medicament tank and the cleaning water tank.
Further preferably, on the reverse osmosis online automatic cleaning device, a first liquid level meter is arranged on the chemical tank.
Furthermore, on the reverse osmosis online automatic cleaning device, a pH meter and a second liquid level meter are arranged on the cleaning water tank.
Furthermore, on the reverse osmosis online automatic cleaning device, an emptying valve is arranged at the bottom of the cleaning water tank.
Furthermore, the reverse osmosis online automatic cleaning device further comprises a PLC controller, and the PLC controller is respectively electrically connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the flowmeter and the cleaning water pump.
The utility model adopts the above technical scheme, compare with prior art, have following technological effect:
the utility model provides an online automatic cleaning device of reverse osmosis, adopt the electric signal to carry, control the opening and closing of each valve and water pump, whether the reverse osmosis membrane needs to wash is defined through the pressure difference and the flow difference of reverse osmosis membrane system, the controller is connected with equipment such as water pump, valve, flowmeter, opens and closes through signal transmission control equipment to reach the purpose of self-cleaning; the utility model discloses an online self-cleaning device of reverse osmosis has that degree of automation is higher, artificial intervention still less, the scavenging period reduces and produce advantages such as water ability height, and its easy and simple to handle, and the more convenient science of control has good popularization and application and worth.
Drawings
FIG. 1 is a schematic structural view of an online reverse osmosis automatic cleaning device of the present invention;
wherein the reference symbols are:
10-a reverse osmosis membrane system, 11-a raw water pump, 12-a high-pressure pump, 13-a first electromagnetic valve, 14-a second electromagnetic valve, 15-a forward washing liquid inlet, 16-a forward washing liquid outlet, 17-a backwashing liquid inlet, 18-a backwashing liquid outlet and 19-a concentrated discharge valve; 20-a water production tank, 30-a cleaning water tank, 31-a pH meter, 32-a second liquid level meter, 33-a cleaning water pump, 34-a cleaning filter, 35-a third electromagnetic valve, 36-a fourth electromagnetic valve, 37-a flow meter and 38-an emptying valve; 40-a medicament tank, 41-a medicament pump, 42-a first liquid level meter.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment provides an online automatic reverse osmosis cleaning device, which includes a reverse osmosis membrane system 10, a water production tank 20, a cleaning water tank 30, and a chemical tank 40, wherein water treated by osmosis of the reverse osmosis membrane system 10 is introduced into the water production tank 20, the chemical tank 40 is communicated with the cleaning water tank 30 through a pipeline, and a cleaning chemical for cleaning the reverse osmosis membrane system 10 is provided to the cleaning water tank 30 through the chemical tank 40.
Specifically, referring to fig. 1, the reverse osmosis membrane system 10 has a forward washing liquid inlet 15, a forward washing liquid outlet 16, a reverse washing liquid inlet 17, a reverse washing liquid outlet 18 and a concentrate discharge valve 19, wherein a first electromagnetic valve 13 is arranged on a pipeline of the forward washing liquid inlet 15, and a second electromagnetic valve 14 is arranged on a pipeline between the forward washing liquid outlet 16 and a water production tank 20; the forward washing liquid outlet 16 is communicated with the top of the washing water tank 30 through a third electromagnetic valve 35 by a pipeline, and the lower part of the washing water tank 30 is communicated with the backwashing liquid inlet 17 through a washing water pump 33 by a pipeline; and the backwash liquid outlet 18 is connected to the top of the wash water tank 30 through a fourth solenoid valve 36 and a flow meter 37.
According to the reverse osmosis online automatic cleaning device provided by the embodiment, the opening and closing of the first electromagnetic valve 13, the second electromagnetic valve 14, the third electromagnetic valve 35, the fourth electromagnetic valve 36, the flow meter 37 and the cleaning water pump 33 are controlled, so that the purpose of automatic cleaning is achieved, the manual intervention is reduced, and the cleaning effect is better; the problems of complex manual operation, high labor intensity, low automation degree, inaccurate dosage concentration, poor cleaning effect, long cleaning time and the like in the existing reverse osmosis membrane cleaning process can be effectively solved.
As shown in fig. 1, as an embodiment, a high-pressure pump 12 and a raw water pump 11 are sequentially disposed on a pipeline at the inlet 15 of the forward washing, and raw water to be treated is sent into the reverse osmosis membrane system 10 through the high-pressure pump 12 and the raw water pump 11 for reverse osmosis treatment, so as to remove impurities in the raw water and purify the raw water.
As shown in fig. 1, as a preferred embodiment, a cleaning filter 34 is disposed on a pipeline between the cleaning water pump 33 and the backwashing liquid inlet 17, and the cleaning filter 34 filters impurities in the original cleaning liquid in the cleaning water tank 30 and inorganic dirt, colloid, microorganisms, metal oxides and other contaminants eluted after the reverse osmosis membrane is repeatedly and circularly cleaned, so as to prevent the contaminants from entering the reverse osmosis membrane system 10 again, thereby improving the use efficiency of the cleaning liquid and the cleaning effect of the reverse osmosis membrane.
As shown in fig. 1, as a preferred embodiment, a chemical pump 41 is disposed on a pipeline between the chemical tank 40 and the cleaning water tank 30, the cleaning chemical prepared in the chemical tank 40 is sent into the cleaning water tank 30 through the chemical pump 41, and a certain amount of raw water is sent into the cleaning water tank 30 to prepare a cleaning chemical. The chemical tank 40 is provided with a first level meter 42, and the amount of the cleaning chemical input into the cleaning water tank 30 by the chemical pump 41 is controlled by controlling the cleaning chemical in the chemical tank 40 by the first level meter 42.
Referring to fig. 1, as a preferred embodiment, a pH meter 31 and a second liquid level meter 32 are disposed on the washing water tank 30, and an emptying valve 38 is disposed at the bottom of the washing water tank 30. In this embodiment, the liquid level in the cleaning water tank 30 is monitored by the second level meter 32 in real time, the dosage ratio of the cleaning agent and the raw water in the cleaning water tank 30 is controlled and inputted by the agent pump 41 and the third electromagnetic valve 35, and the pH value of the cleaning agent in the cleaning water tank 30 is monitored by the pH meter 31 in real time.
Referring to fig. 1, in the present embodiment, the reverse osmosis online automatic cleaning device further includes a PLC controller (not shown in the figure), and the PLC controller is respectively connected to the first electromagnetic valve 13, the second electromagnetic valve 14, the third electromagnetic valve 35, the fourth electromagnetic valve 36, the flow meter 37, the cleaning water pump 33, the high pressure pump 12, the raw water pump 11, the concentrate discharge valve 19, the chemical pump 41, the first liquid level meter 42, the pH meter 31, the second liquid level meter 32, and the drain valve 38. The PLC collects data detected by the flow meter 37, the first liquid level meter 42, the pH meter 31 and the second liquid level meter 32 in real time, and controls the opening and closing of the first electromagnetic valve 13, the second electromagnetic valve 14, the third electromagnetic valve 35, the fourth electromagnetic valve 36, the cleaning water pump 33, the high-pressure pump 12, the raw water pump 11, the concentrated discharge valve 19 and the medicament pump 41, so that the purpose of automatic cleaning is achieved.
Referring to fig. 1, the reverse osmosis online automatic cleaning device of the present embodiment uses electric signal transmission to control the on/off of each valve and the corresponding water pump, and determines whether the reverse osmosis membrane needs to be cleaned through the pressure difference and flow difference of the reverse osmosis membrane system, and the controller is connected to the water pump, the valve, the flow meter, and other devices, and controls the on/off of the devices through signal transmission to achieve the purpose of automatic cleaning; the specific working principle is as follows:
when the pressure difference between the forward washing liquid inlet 15 and the forward washing liquid outlet 16 in the reverse osmosis membrane system 10 exceeds 10% -15% or the flow is lower than the designed flow by 10% -15%, the second electromagnetic valve 14 is controlled to be closed, the third electromagnetic valve 35 is controlled to be opened, and water is filled into the cleaning water tank 30 from the forward washing liquid outlet 16;
when the liquid level of the cleaning water tank 30 is high, the raw water pump 11 and the high-pressure pump 12 are controlled to stop running, the first electromagnetic valve 13 is controlled to be closed, and then the cleaning water pump 33 is controlled to be started; a flow meter 37 on a cleaning return water pipe between the forward cleaning liquid outlet 16 and the cleaning water tank 30 indicates the flow rate, and then a medicament pump 41 is controlled to be started to introduce a cleaning medicament into the cleaning water tank 30; when the pH value of the cleaning liquid medicine mixed in the cleaning water tank 30 is 3, controlling the medicament pump 41 to be closed;
cleaning liquid medicine is sent into the reverse osmosis membrane system 10 through a cleaning water pump 33 to clean the reverse osmosis membrane, the cleaned liquid medicine is discharged from a reverse osmosis liquid outlet 18 and flows back into a cleaning water tank 30, and the cleaning filter 34 filters and removes pollutants such as eluted inorganic dirt, colloid, microorganisms, metal oxides and the like and then sends the pollutants into the reverse osmosis membrane system 10 again, so that a cleaning period is set;
circularly operating for 30min in the cleaning period, controlling the cleaning water pump 33 to be closed, the concentrated exhaust valve 19 to be opened, and controlling the exhaust valve 38 of the cleaning water tank 30 to be opened; after 1min, the concentrated exhaust valve 19 is controlled to be closed, the first electromagnetic valve 13 and the second electromagnetic valve 14 are controlled to be opened, the third electromagnetic valve 35 is controlled to be closed, the raw water pump 12 and the high-pressure pump 11 are controlled to be opened, and the cleaning process is finished.
The present invention has been described in detail with reference to the specific embodiments, but the present invention is only by way of example and is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are intended to be within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (9)
1. The reverse osmosis online automatic cleaning device is characterized by comprising a reverse osmosis membrane system, a water production tank, a cleaning water tank and a chemical tank, wherein the chemical tank is communicated with the cleaning water tank through a pipeline; wherein: the reverse osmosis membrane system is provided with a forward washing liquid inlet, a forward washing liquid outlet, a reverse washing liquid inlet and a reverse washing liquid outlet, a first electromagnetic valve is arranged on a pipeline of the forward washing liquid inlet, and a second electromagnetic valve is arranged on a pipeline between the forward washing liquid outlet and the water production tank; the forward washing liquid outlet is communicated with the top of the washing water tank through a third electromagnetic valve through a pipeline, and the lower part of the washing water tank is communicated with the backwashing liquid inlet through a washing water pump through a pipeline; and the backwashing liquid outlet is communicated with the top of the cleaning water tank through a fourth electromagnetic valve and a flowmeter through a pipeline.
2. A reverse osmosis online automatic cleaning device according to claim 1, wherein a high-pressure pump and a raw water pump are sequentially arranged on a pipeline at the forward washing liquid inlet.
3. The online automatic reverse osmosis cleaning device of claim 1, wherein a concentrate discharge valve is further arranged on the reverse osmosis membrane system.
4. An online automatic reverse osmosis cleaning device according to claim 1, wherein a cleaning filter is arranged on a pipeline between the cleaning water pump and the backwashing liquid inlet.
5. An online automatic reverse osmosis cleaning device according to claim 1, wherein a chemical pump is arranged on a pipeline between the chemical tank and the cleaning water tank.
6. A reverse osmosis online automatic cleaning device according to claim 5, wherein a first liquid level meter is arranged on the chemical tank.
7. An online automatic reverse osmosis cleaning device according to claim 1, wherein a pH meter and a second liquid level meter are arranged on the cleaning water tank.
8. An online automatic reverse osmosis cleaning device according to claim 1, wherein the bottom of the cleaning water tank is provided with an emptying valve.
9. An online automatic reverse osmosis cleaning device according to claim 1, further comprising a PLC controller electrically connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the flow meter and the cleaning water pump, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920926473.2U CN210131545U (en) | 2019-06-19 | 2019-06-19 | Reverse osmosis online automatic cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920926473.2U CN210131545U (en) | 2019-06-19 | 2019-06-19 | Reverse osmosis online automatic cleaning device |
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| CN210131545U true CN210131545U (en) | 2020-03-10 |
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| CN201920926473.2U Active CN210131545U (en) | 2019-06-19 | 2019-06-19 | Reverse osmosis online automatic cleaning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115745084A (en) * | 2022-11-16 | 2023-03-07 | 成都川力智能流体设备股份有限公司 | Intelligent direct drinking water cleaning device and method |
-
2019
- 2019-06-19 CN CN201920926473.2U patent/CN210131545U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115745084A (en) * | 2022-11-16 | 2023-03-07 | 成都川力智能流体设备股份有限公司 | Intelligent direct drinking water cleaning device and method |
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