CN203874680U - Online automatic washing device of reverse osmosis system - Google Patents
Online automatic washing device of reverse osmosis system Download PDFInfo
- Publication number
- CN203874680U CN203874680U CN201320386363.4U CN201320386363U CN203874680U CN 203874680 U CN203874680 U CN 203874680U CN 201320386363 U CN201320386363 U CN 201320386363U CN 203874680 U CN203874680 U CN 203874680U
- Authority
- CN
- China
- Prior art keywords
- reverse osmosis
- pure water
- liquid level
- water tank
- pump
- 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.)
- Expired - Fee Related
Links
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 48
- 238000005406 washing Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000012528 membrane Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010612 desalination reaction Methods 0.000 description 6
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the technical field of heating equipment, and particularly relates to an online automatic washing device of a reverse osmosis system. The online automatic washing device comprises a water tank, a booster pump, a precise filter, a high-pressure pump, a reverse osmosis membrane modulus, a pure water tank, a pure water pump and a PLC which are sequentially connected; a high-liquid level switch and a low-liquid level switch are arranged in the pure water tank; and the high-liquid level switch, the low-liquid level switch, the high-pressure pump and the pure water pump are respectively controlled by the PLC; when the pure water tank is high at a liquid level, the high-pressure pump automatically stops operating, a washing valve of the reverse osmosis membrane modulus is opened, and the booster pump continuously works to provide a pressure required by washing of a reverse osmosis device. Compared with the prior art, the online automatic washing device is capable of realizing an online cleaning process, thereby saving the labor force and ensuring the quality of water and the service life of a membrane.
Description
Technical Field
The utility model relates to a resident water supply equipment technical field especially relates to an online automatic washing unit of reverse osmosis system.
Background
The reverse osmosis device is more and more widely applied to industries such as ultrapure water treatment in the power plant boiler feed water industry, electronic industry and semiconductor industry, pure water treatment in the chemical industry and pharmaceutical industry, food, beverage and drinking water treatment, seawater and brackish water desalination, wastewater treatment in the industries of metallurgy, light industry, electroplating, leather and the like, and the reverse osmosis device needs regular water washing or drug washing to ensure the quality of effluent water of equipment. The reverse osmosis device can block the membrane pores of the reverse osmosis membrane after working for a period of time, and the permeability of the reverse osmosis membrane is influenced. Therefore, how to effectively backwash the reverse osmosis device is a technical problem to be solved urgently by scientific research personnel at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned technique, and provide an online automatic washing unit of reverse osmosis system, effectively to reverse osmosis membrane washing.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
an online automatic water washing device of a reverse osmosis system comprises a water tank, a booster pump, a precision filter, a high-pressure pump, a reverse osmosis membrane group, a pure water tank, a pure water pump and a PLC (programmable logic controller) which are connected in sequence; a high liquid level switch and a low liquid level switch are arranged in the pure water tank; the high-level switch, the low-level switch, the high-pressure pump and the pure water pump are respectively controlled by a PLC (programmable logic controller), when the high liquid level of the pure water tank is high, the high-pressure pump automatically stops running, a flushing valve of the reverse osmosis membrane group is opened, and the booster pump can continuously work to provide the pressure required by the water washing of the reverse osmosis device; a sewage tank is connected outside the reverse osmosis membrane module; a high liquid level switch and a low liquid level switch are arranged in the water tank; the inlet and outlet of the high-pressure pump are provided with a low-voltage protection switch and a high-voltage protection switch.
Compared with the prior art, the utility model has the advantages that the equipment can realize the online cleaning process, not only saves the manpower, but also ensures the water quality and the service life of the membrane. When the pure water tank is at a low position, the reverse osmosis device normally operates to produce water, and when the pure water tank is at a high position, the reverse osmosis device automatically washes water, so that the equipment can meet the water supply requirement, and the reverse osmosis membrane can keep good desalination rate and recovery rate. The equipment automatically runs, and the influence of human factors on the product quality and the service life of the system is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. a water tank; 2. a booster pump; 3. a precision filter; 4. a high pressure pump; 5. a reverse osmosis membrane group; 6. a pure water tank; 7. a pure water pump.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings. As shown in figure 1, the online automatic water washing device of the reverse osmosis system comprises a water tank 1, a booster pump 2, a precision filter 3, a high-pressure pump 4, a reverse osmosis membrane group 5, a pure water tank 6, a pure water pump 7 and a PLC (programmable logic controller) which are connected in sequence. Wherein,
1. water tank
The pretreated water is stored, and the uniform flow of the system is ensured. The water replenishing state is automatically controlled by a high-low liquid level switch.
2. Booster pump
The pressure and flow required by the subsequent treatment device can be provided, and the pressure necessary for the RO device to wash can be provided when the liquid level of the pure water tank is high.
3. Precision filter
The raw water is pre-filtered and then treated by a precision filter to further remove residual mechanical impurities, broken resin and the like in the water, so that the water to be treated of the reverse osmosis system completely conforms to the water inlet condition of the membrane, and the normal operation of the reverse osmosis system is ensured.
4. Reverse osmosis desalination unit
The pretreated water enters a high-pressure pump for pressurization and then is sent to a reverse osmosis system for desalination treatment.
4.1 high-pressure Pump
For reverse osmosis desalination, the outside must apply a pressure greater than the osmotic pressure of the solution. The system pump is used for providing enough inlet water quantity and pressure for the reverse osmosis membrane module so as to enable the reverse osmosis process to occur and maintain the normal operation of the reverse osmosis membrane module. The inlet and outlet of the high-pressure pump are provided with a low-voltage protection switch and a high-voltage protection switch. When the water supply quantity is insufficient, the water pressure at the inlet of the high-pressure pump is lower than a certain set value (generally 0.1MPa), the low-pressure protection switch can automatically send a signal to stop the high-pressure pump, and the high-pressure pump is protected from working under the condition of idling. When the outlet pressure of the high-pressure pump exceeds a set value due to other reasons or misoperation, the high-pressure protection switch at the outlet of the high-pressure pump can automatically delay to cut off power supply, so that the operation safety of the high-pressure pump is protected.
4.2 reverse osmosis Membrane modules
The reverse osmosis membrane group is the heart of the reverse osmosis system and has the function of removing soluble salt, colloid, organic matters, bacteria and heat source in water to be treated. And a sewage tank is connected outside the reverse osmosis membrane module. The system was entirely using membrane elements from the united states of america, heideng. It has ultralow operation pressure, higher water flux, wider water quality application range and pressure application range.
5. Pure water box
The pure water tank is used for storing the produced water of the system, and a high liquid level switch and a low liquid level switch are arranged in the pure water tank. Can ensure the stability of the water supply quantity and the water quality, and can control the start and stop of the high-pressure pump by the high and low liquid level switches of the pure water tank.
6. Pure water pump
The function is to provide stable water quantity and pressure for each water consumption point.
The high-pressure pump, the low-pressure liquid level switch, the high-pressure pump and the pure water pump are respectively controlled by the PLC, when the high liquid level of the pure water tank is high, the high-pressure pump automatically stops running, the flushing valve of the reverse osmosis membrane group is opened, and the booster pump can continuously work to provide the pressure required by the washing of the reverse osmosis device.
Compared with the prior art, the equipment can realize the online cleaning process, not only saves manpower, but also ensures the water quality and the service life of the membrane. When the pure water tank is at a low position, the reverse osmosis device normally operates to produce water, and when the pure water tank is at a high position, the reverse osmosis device automatically washes water, so that the equipment can meet the water supply requirement, and the reverse osmosis membrane can keep good desalination rate and recovery rate. The equipment automatically runs, and the influence of human factors on the product quality and the service life of the system is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (1)
1. An online automatic water washing device of a reverse osmosis system comprises a water tank, a booster pump, a precision filter, a high-pressure pump, a reverse osmosis membrane group, a pure water tank, a pure water pump and a PLC (programmable logic controller) which are connected in sequence; a high liquid level switch and a low liquid level switch are arranged in the pure water tank; the high-level switch, the low-level switch, the high-pressure pump and the pure water pump are respectively controlled by a PLC (programmable logic controller), when the high liquid level of the pure water tank is high, the high-pressure pump automatically stops running, a flushing valve of the reverse osmosis membrane group is opened, and the booster pump can continuously work to provide the pressure required by the water washing of the reverse osmosis device; a sewage tank is connected outside the reverse osmosis membrane module; a high liquid level switch and a low liquid level switch are arranged in the water tank; the inlet and outlet of the high-pressure pump are provided with a low-voltage protection switch and a high-voltage protection switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320386363.4U CN203874680U (en) | 2013-06-28 | 2013-06-28 | Online automatic washing device of reverse osmosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320386363.4U CN203874680U (en) | 2013-06-28 | 2013-06-28 | Online automatic washing device of reverse osmosis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203874680U true CN203874680U (en) | 2014-10-15 |
Family
ID=51675226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320386363.4U Expired - Fee Related CN203874680U (en) | 2013-06-28 | 2013-06-28 | Online automatic washing device of reverse osmosis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203874680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437087A (en) * | 2014-11-13 | 2015-03-25 | 广东艾沃科技有限公司 | Multifunctional water tank |
-
2013
- 2013-06-28 CN CN201320386363.4U patent/CN203874680U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437087A (en) * | 2014-11-13 | 2015-03-25 | 广东艾沃科技有限公司 | Multifunctional water tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |