CN211636042U - Adjustable section type reverse osmosis membrane detection system - Google Patents
Adjustable section type reverse osmosis membrane detection system Download PDFInfo
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- CN211636042U CN211636042U CN202020066563.1U CN202020066563U CN211636042U CN 211636042 U CN211636042 U CN 211636042U CN 202020066563 U CN202020066563 U CN 202020066563U CN 211636042 U CN211636042 U CN 211636042U
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Abstract
The utility model discloses an adjustable section formula reverse osmosis membrane detecting system, including former water tank, product water tank, dense water tank and electrically controlled device to and parallelly connected first reverse osmosis membrane device, second reverse osmosis membrane device, third reverse osmosis membrane device and fourth reverse osmosis membrane device. Four sets of reverse osmosis membrane devices are arranged in the system, and four operation modes of any one-way or multi-way operation can be realized through valve adjustment; the original water tank, the product water tank and the concentrated water tank are configured, and the switching between the continuous self-circulation operation and the non-self-circulation operation of the system can be realized through valve adjustment.
Description
Technical Field
The utility model relates to a water treatment facilities detects technical field, concretely relates to adjustable section formula reverse osmosis membrane detecting system.
Background
With the increasing demand for high-quality recycled water, the RO (reverse osmosis) process is gradually and widely applied to the field of sewage regeneration so as to meet the desalting requirement. Meanwhile, the reverse osmosis technology can effectively remove pollutants such as colloidal substances, pathogenic microorganisms, soluble organic matters, partial ions and the like, and has the advantages of high desalination rate of over 90 percent, simple and convenient operation, stable water quality of produced water, small occupied area and the like. At present, in the running process of the RO process, MF (microfiltration) or UF (ultrafiltration), a grid, a self-cleaning filter, a security filter and the like are used as pretreatment to ensure the quality of RO inlet water, a large amount of medicaments are added to reduce, prevent or remove membrane pollution and ensure the efficient running of the membrane, but in the actual running process, a plurality of soluble substances including organic matters and inorganic matters can still pass through the pretreatment barriers and are adsorbed, accumulated or precipitated on the surface of the reverse osmosis membrane to cause the membrane pollution. The problem of membrane fouling remains one of the important problems faced by RO technology, limiting the operating efficiency of reverse osmosis processes.
In actual water works, the membrane fouling and blocking control effect of multiple different pretreatment processes is difficult to realize, so a laboratory scale RO device needs to be built, different pretreatment processes are greatly compared, and the performance of RO membranes with different fouling and blocking degrees can be evaluated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize transferring sectional type reverse osmosis membrane detecting system, its compact structure is reasonable, and the raw water passes through multiple path multistage formula through reverse osmosis membrane to quality of water condition around the detection, in order to realize the detection to reverse osmosis membrane.
The utility model discloses a reach above-mentioned purpose, specifically can realize through following technical scheme:
an adjustable section type reverse osmosis membrane detection system comprises a raw water tank, a water production tank, a concentrated water tank, an electric control device, a first reverse osmosis membrane device, a second reverse osmosis membrane device, a third reverse osmosis membrane device and a fourth reverse osmosis membrane device which are connected in parallel, wherein each group of reverse osmosis membrane devices are provided with a raw water inlet, a produced water outlet and a concentrated water outlet;
the raw water tank is communicated with raw water inlets of the reverse osmosis membrane devices through a raw water inlet pipe group and a raw water valve group respectively, the water production tank is communicated with produced water inlets of the reverse osmosis membrane devices through a produced water outlet pipe group and a produced water valve group respectively, and the concentrated water tank is communicated with concentrated water inlets of the reverse osmosis membrane devices through a concentrated water outlet pipe group and a concentrated water valve group respectively;
a raw water main pipe is arranged between the raw water tank and the raw water inlet pipe group, a raw water pump and a raw water main valve are sequentially connected to the raw water main pipe, and the raw water pump is connected with an electric control device; a water production main pipe is arranged between the water production tank and the water production and outlet pipe group, and a water production main valve is arranged on the water production main pipe; a concentrated water main pipe is arranged between the concentrated water tank and the concentrated water inlet pipe group, and a concentrated water main valve is arranged on the concentrated water main pipe;
the upper group of concentrated water outlets between the adjacent groups of reverse osmosis membrane devices are communicated with the raw water inlet of the lower group of reverse osmosis membrane devices through a first-stage water connecting pipe group and a first-stage valve group, and the concentrated water outlets of the first reverse osmosis membrane device and the second reverse osmosis membrane device are communicated to the raw water inlet of the third group of reverse osmosis membrane devices through a second-stage water connecting pipe and a second-stage valve.
The further improvement to the above scheme is that a first pressure transmitter is arranged at a raw water inlet of each group of reverse osmosis membrane devices, a second pressure transmitter is connected at a concentrated water outlet of each group of reverse osmosis membrane devices, a first online monitoring device is connected at the downstream of a produced water outlet of each group of reverse osmosis membrane devices, and the first pressure transmitter, the second pressure transmitter and the first online monitoring device are respectively connected with an electric control device.
The system further comprises a cleaning water tank, the cleaning water tank is communicated with the raw water inlet of each reverse osmosis membrane device through a cleaning water inlet pipe group and a cleaning valve group, a cleaning water outlet main pipe is arranged between the cleaning water tank and the cleaning water inlet pipe group, a cleaning water pump is connected to the cleaning water outlet main pipe, the cleaning water tank is communicated with a water production main pipe through a water production tank cleaning pipe and a water production tank cleaning valve, and the cleaning water tank is communicated with a concentrated water main pipe through a concentrated water tank cleaning pipe and a concentrated water tank cleaning valve. The cleaning water tank is configured, so that different cleaning liquids can be prepared to clean the polluted membrane.
The scheme is further improved, the raw water tank is communicated with the water production main pipe through a water production circulating pipe and a water production circulating valve, and the raw water tank is communicated with the concentrated water main pipe through a concentrated water circulating pipe and a concentrated water circulating valve. When the water production circulation valve and the concentrated water circulation valve are opened, concentrated water and produced water obtained by system operation are collected to the raw water tank, the raw water is kept unchanged, the circulation is repeated, the system can achieve self-circulation operation, when the self-circulation operation is not needed, the two valves can be closed, and the produced water and the concentrated water of the system respectively return to the water production tank and the concentrated water tank and are respectively collected to measure the water quality.
The further improvement to above-mentioned scheme, first reverse osmosis membrane device, second reverse osmosis membrane device, third reverse osmosis membrane device and fourth reverse osmosis membrane device all include reverse osmosis membrane, keep apart net piece and membrane shell, and the membrane shell is transparent material, and it sets up at magnetic stirrers's top, and raw water inlet and dense water outlet are seted up to the casing bottom of membrane shell, and the product water delivery port is seted up at the membrane shell top, and reverse osmosis membrane transversely installs in the membrane shell, keeps apart the net piece setting and goes out the water side at reverse osmosis membrane's product water.
The scheme is further improved, and a liquid level sensor is installed in the raw water tank.
The further improvement to above-mentioned scheme, installation second on-line monitoring device, first thermometer and first manometer, first check valve on the raw water main, first check valve is located between raw water pump and the raw water main.
The further improvement to the above scheme is that a second temperature gauge and a second pressure gauge are further arranged on the cleaning water outlet main pipe.
The further improvement of the scheme is that a second raw water pipe is connected between the raw water main pipe and the raw water tank, a connection point of the second raw water pipe and the raw water main pipe is located between the first check valve and the raw water main valve, and a second raw water valve is arranged on the second raw water pipe.
The system further comprises a frame, wherein a raw water tank, a water production tank and a concentrated water tank are installed at the bottom of the left side of the frame, a first reverse osmosis membrane device, a second reverse osmosis membrane device, a third reverse osmosis membrane device and a fourth reverse osmosis membrane device are installed in the middle of the left side of the frame, a raw water pump is installed at the bottom of the right side of the frame, an electric control cabinet is installed in the middle of the right side of the frame, and an electric control device is installed in the electric control cabinet. The stand adopts the floor type design, and the whole stand adopts 316 stainless steel to make, and is firm, pleasing to the eye, the removal of being convenient for.
Technical scheme of the utility model beneficial effect
(1) Four sets of reverse osmosis membrane devices are arranged, and four operation modes of any one-way or multi-way operation can be realized through valve adjustment; the original water tank, the product water tank and the concentrated water tank are configured, and the switching between the continuous self-circulation operation and the non-self-circulation operation of the system can be realized through valve adjustment.
(2) The membrane is suitable for general membranes, and can meet the functional requirements of performance detection of reverse osmosis and nanofiltration membranes simultaneously by replacing different membranes, and the highest operating pressure is 25 bar. The method can be used for conventional membrane test, material clarification and impurity removal, and can also be used for grading, desalting, concentration and the like; different membranes are selected according to different water qualities, and water and concentrated water are obtained through membrane filtration, so that the effects of clarification and impurity removal are achieved, and the concentrated water can be filtered and subjected to classification treatment again, so that the effect of concentration is achieved.
(3) The membrane shell is made of transparent materials, so that the operation condition in the membrane pool can be visually observed; the raw water pump of the detection system of the utility model adopts the high-pressure pump, has variable frequency, high reliability and corrosion resistance, and can accurately adjust the flow; and the flow, pressure, temperature, pH, conductivity and other on-line instruments are arranged, so that the change of each parameter of the system can be monitored conveniently.
Drawings
Fig. 1 is a schematic connection diagram according to a first embodiment of the present invention;
fig. 2 is a schematic connection diagram of a second embodiment of the present invention;
FIG. 3 is a schematic view of a reverse osmosis membrane apparatus;
fig. 4 is a schematic view of the frame connection structure of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The first feature may be "on" or "under" the second feature and may include the first and second features being in direct contact, or the first and second features being in contact via another feature not being in direct contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1, the first embodiment of the sectional-adjustable reverse osmosis membrane detection system includes a raw water tank 1, a product water tank 2, a concentrated water tank 3, an electric control device, and a first reverse osmosis membrane device 4, a second reverse osmosis membrane device 5, a third reverse osmosis membrane device 6, and a fourth reverse osmosis membrane device 7 connected in parallel, wherein the raw water tank 1 controls the temperature through a thermostatic water bath. In a specific embodiment, the capacity of the raw water tank 1, the produced water tank 2 and the concentrated water tank 3 may be all 100L, so that the total amount of the produced water and the concentrated water filtered by each reverse osmosis membrane device flowing out from the raw water tank 1 and the amount of the raw water are completely collected, and preferably, a liquid level sensor 37 is installed in the raw water tank. The first reverse osmosis membrane device 4, the second reverse osmosis membrane device 5, the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 7 are devices having the same structure, and each reverse osmosis membrane device is provided with a raw water inlet 34, a produced water outlet 36 and a concentrated water outlet 35. First reverse osmosis membrane device 4, second reverse osmosis membrane device 5, third reverse osmosis membrane device 6 and fourth reverse osmosis membrane device 7 can be current reverse osmosis membrane filter equipment, can correspond the installation with each water pipe of this system with reverse osmosis membrane filter equipment's water inlet and delivery port, can the multistage test water quality filtration condition.
As shown in fig. 3, the structure of the reverse osmosis membrane device is shown, the first reverse osmosis membrane device 4, the second reverse osmosis membrane device 5, the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 8 all comprise a reverse osmosis membrane 29, an isolation mesh 30 and a membrane shell 31, the membrane shell 31 is made of transparent materials, a raw water inlet 34 and a concentrated water outlet 35 are formed in the bottom of the shell of the membrane shell 31, a water production outlet 36 is formed in the top of the membrane shell 31, the reverse osmosis membrane 29 is transversely installed in the membrane shell 31, and the isolation mesh 30 is arranged on the water production outlet side of the reverse osmosis membrane 29. The reverse osmosis membrane device can evaluate the performance of reverse osmosis membranes subjected to different degrees and different types of dirt blockage, and test the water passing flux, transmembrane pressure difference, desalination rate and the like of the membranes.
The raw water tank 1 is communicated with the raw water inlet 34 of each reverse osmosis membrane device through a raw water inlet pipe group and a raw water valve group respectively. The raw water inlet pipe group comprises a first raw water inlet pipe 1-1, a second raw water inlet pipe 1-2, a third raw water inlet pipe 1-3 and a fourth raw water inlet pipe 1-4 which are respectively communicated with a raw water main pipe 11 and respectively correspond to a first reverse osmosis membrane device 4, a second reverse osmosis membrane device 5, a third reverse osmosis membrane device 6 and a fourth reverse osmosis membrane device 7. The raw water valve group comprises a first raw water valve 1-5, a second raw water valve 1-6, a third raw water valve 1-7 and a fourth raw water valve 1-8 which are respectively arranged on a first raw water inlet pipe 1-1, a second raw water inlet pipe 1-2, a third raw water inlet pipe 1-3 and a fourth raw water inlet pipe 1-4 and respectively correspond to a first reverse osmosis membrane device 4, a second reverse osmosis membrane device 5, a third reverse osmosis membrane device 6 and a fourth reverse osmosis membrane device 7. A parallel valve 48 is arranged on the raw water main pipe 11 between the second reverse osmosis membrane device 5 and the third reverse osmosis membrane device 6, and specifically, a parallel valve 49 is arranged on the raw water main pipe 11 between the connection points of the second raw water inlet pipe 1-2 and the third raw water inlet pipe 1-3 with the raw water main pipe 11.
A raw water main pipe 11 is arranged between the raw water tank 1 and the raw water inlet pipe group, a raw water pump 12 and a raw water main valve 13 are sequentially connected to the raw water main pipe 11, and specifically, the raw water tank 1 is uniformly communicated with a first raw water inlet pipe 1-1, a second raw water inlet pipe 1-2, a third raw water inlet pipe 1-3 and a fourth raw water inlet pipe 1-4 of the raw water inlet pipe group through the raw water main pipe 11 and is controlled by the main valve of the raw water main valve 13. The raw water pump 12 is a high-pressure variable-frequency water pump, and the flow can be accurately controlled by adjusting the raw water pump by using an electric control device.
The water production tank 2 is respectively communicated with the water production inlets 36 of the reverse osmosis membrane devices through the water production outlet pipe group and the water production valve group. The water producing and water discharging pipe group comprises a first water producing and water discharging pipe 2-1, a second water producing and water discharging pipe 2-2, a third water producing and water discharging pipe 2-3 and a fourth water producing and water discharging pipe 2-4 which are respectively communicated with a water producing main pipe 11 and respectively correspond to a first reverse osmosis membrane device 4, a second reverse osmosis membrane device 5, a third reverse osmosis membrane device 6 and a fourth reverse osmosis membrane device 7. The water production valve group comprises a first water production valve 2-5, a second water production valve 2-6, a third water production valve 2-7 and a fourth water production valve 2-8 which are respectively arranged on a first water production outlet pipe 2-1, a second water production outlet pipe 2-2, a third water production outlet pipe 2-3 and a fourth water production outlet pipe 2-4 and respectively correspond to the first reverse osmosis membrane device 4, the second reverse osmosis membrane device 5, the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 7.
A water production main pipe 14 is arranged between the water production tank 2 and the water production and outlet pipe group, a water production main valve 15 is arranged on the water production main pipe 14, and specifically, the water production main pipe 14 connects the water production tank 2 and a first water production outlet pipe 2-1, a second water production outlet pipe 2-2, a third water production outlet pipe 2-3 and a fourth water production outlet pipe 2-4 of the water production and outlet pipe group in a unified manner and is controlled by the water production main valve 15.
The concentrated water tank 3 is respectively communicated with the concentrated water inlets 35 of the reverse osmosis membrane devices through a concentrated water outlet pipe group and a concentrated water valve group. The concentrated water outlet pipe group comprises a first concentrated water outlet pipe 3-1, a second concentrated water outlet pipe 3-2, a third concentrated water outlet pipe 3-3 and a fourth concentrated water outlet pipe 3-4 which respectively correspond to a first reverse osmosis membrane device 4, a second reverse osmosis membrane device 5, a third reverse osmosis membrane device 6 and a fourth reverse osmosis membrane device 7. The concentrated water valve group comprises a first concentrated water valve 3-5, a second concentrated water valve 3-6, a third concentrated water valve 3-7 and a fourth concentrated water valve 3-8 which are respectively arranged on a first concentrated water outlet pipe 3-1, a second concentrated water outlet pipe 3-2, a third concentrated water outlet pipe 3-3 and a fourth concentrated water outlet pipe 3-4 and respectively correspond to a first reverse osmosis membrane device 4, a second reverse osmosis membrane device 5, a third reverse osmosis membrane device 6 and a fourth reverse osmosis membrane device 7. The raw water inlet pipe group and the produced water outlet pipe group both adopt 3/8 'SS 316 rigid pipes, and the concentrated water outlet pipe group adopts 3/8' flexible pipes.
A concentrated water main pipe 16 is arranged between the concentrated water tank 3 and the concentrated water inlet pipe group, a concentrated water main valve 17 is arranged on the concentrated water main pipe 16, and specifically, the concentrated water tank 3 is communicated with a first concentrated water outlet pipe 3-1, a second concentrated water outlet pipe 3-2, a third concentrated water outlet pipe 3-3 and a fourth concentrated water outlet pipe 3-4 of the concentrated water outlet pipe group in a unified manner through the concentrated water main pipe 16 and is controlled by the concentrated water main valve 17.
As shown in fig. 2, in the second embodiment, the raw water inlet 34 of each set of reverse osmosis membrane devices is provided with the first pressure transmitter 8, and the first pressure transmitters 8 are four sets and respectively correspond to the first reverse osmosis membrane device 4, the second reverse osmosis membrane device 5, the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 7. The concentrated water outlet 35 of each group of reverse osmosis membrane device is connected with a second pressure transmitter 9, and the second pressure transmitters 9 are four groups and respectively correspond to the first reverse osmosis membrane device 4, the second reverse osmosis membrane device 5, the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 7. The downstream of the water outlet 36 of each group of reverse osmosis membrane devices is connected with a first on-line monitoring device 10, and the first on-line monitoring devices 10 are four groups and respectively correspond to a first reverse osmosis membrane device 4, a second reverse osmosis membrane device 5, a third reverse osmosis membrane device 6 and a fourth reverse osmosis membrane device 7. In the first embodiment, the first pressure transmitter 8, the second pressure transmitter 9 and the first online monitoring device 10 are preferably in an off-line detection mode, and sampling ports are reserved on corresponding pipelines.
The upper group of concentrated water outlets between the adjacent groups of reverse osmosis membrane devices are communicated with the raw water inlet of the next group of reverse osmosis membrane devices through a first-stage water connecting pipe group and a first-stage valve group. Specifically, the first-stage water connecting pipe groups are three groups and comprise a first-stage water connecting pipe 4-1, a second first-stage water connecting pipe 4-2 and a third first-stage water connecting pipe 4-3, the first-stage valve group comprises a first-stage valve 4-4, a second first-stage valve 4-5 and a third first-stage valve 4-6, a concentrated water outlet 35 of the first reverse osmosis membrane device 4 is communicated with a raw water inlet of the second reverse osmosis membrane device 5 through the first-stage water connecting pipe 4-1 and the first-stage valve 4-4, and when the first-stage valve 4-4 is opened, filtered concentrated water of the first reverse osmosis membrane device 4 can enter the second reverse osmosis membrane device 5 for secondary filtration, so that two-stage filtration is realized. Similarly, a concentrated water outlet of the second reverse osmosis membrane device 5 is communicated with a raw water inlet of a third reverse osmosis membrane device 6 through a second primary connecting water pipe 4-2 and a second primary valve 4-5; the concentrated water outlet of the third reverse osmosis membrane device 6 is communicated with the raw water inlet of the fourth reverse osmosis membrane device 7 through a third primary connecting water pipe 4-3 and a third primary valve 4-6. When the first primary valve 4-4, the second primary valve 4-5 and the third primary valve 4-6 are all in an open state and only the first raw water valve 1-5 is opened, the four-stage filtration of water can be realized.
The concentrated water outlets 35 of the first reverse osmosis membrane device 4 and the second reverse osmosis membrane device 5 are communicated to the raw water inlet pipe of the third reverse osmosis membrane device 6 through the second water connecting pipe group and the second stage valve group. Specifically, the secondary water connecting pipe group comprises a first secondary water inlet pipe 5-1 and a second secondary water connecting pipe 5-2, and the secondary valve group comprises a first secondary valve 5-3 and a second secondary valve 5-4. The concentrated water outlet of the first reverse osmosis membrane device 4 is communicated to a third raw water inlet pipe 1-3 at the upstream of a third raw water valve 1-7 of a third reverse osmosis membrane device 6 or communicated to a raw water main pipe 11 at the downstream of a parallel valve 48 through a first secondary water inlet pipe 5-1 and a first secondary valve 5-3. Similarly, a concentrated water outlet of the second reverse osmosis membrane device 4 is communicated to a third raw water inlet pipe 1-3 of a third reverse osmosis membrane device 6 through a second secondary water inlet pipe 5-2 and a second secondary valve 5-4 and is positioned at the upstream of the third raw water valve 1-7, when the first secondary valve 5-3 and the second secondary valve 5-4 are opened, filtered water from the first reverse osmosis membrane device 4 and/or the second reverse osmosis membrane device 5 enters the third reverse osmosis membrane device 6 and/or the fourth reverse osmosis membrane device 7, after all pipelines are flexibly communicated, the opening and closing of each valve can be controlled according to the number of filtering sections required by actual test, and the test direction can be adjusted in a diversified manner.
The electric control device is respectively connected with the corresponding first pressure transmitter 8, second pressure transmitter 9 and first on-line monitoring device 10 of the first reverse osmosis membrane device 4, the second reverse osmosis membrane device 5, the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 7, and is in control connection with the raw water pump 12.
In a further improved embodiment, the system further comprises a cleaning water tank 18, the cleaning water tank 18 is communicated with the raw water inlets of the reverse osmosis membrane devices through a cleaning water inlet pipe group and a cleaning valve group, a cleaning water outlet header pipe 19 is arranged between the cleaning water tank and the cleaning water inlet pipe group, a cleaning water pump 20 is connected to the cleaning water outlet header pipe 19, and a second check valve 48 is further arranged on the cleaning water outlet header pipe 19. The cleaning water tank 18 is communicated with the water production main pipe 14 through a water production tank cleaning pipe 21 and a water production tank cleaning valve 22, and the cleaning water tank 18 is communicated with the concentrate water main pipe 16 through a concentrate tank cleaning pipe 23 and a concentrate tank cleaning valve 24. A cleaning water tank 18 is arranged, and different cleaning liquids can be prepared to clean the polluted membrane. Preferably, a second temperature gauge 41 and a second pressure gauge 42 are further disposed on the cleaning water outlet manifold 19 for detecting the temperature and pressure of the cleaning water tank outlet water.
In a further improved embodiment, the raw water tank 1 is communicated with the water production main pipe 15 through a water production circulating pipe 25 and a water production circulating valve 26, and the raw water tank 1 is communicated with the concentrate main pipe 16 through a concentrate circulating pipe 27 and a concentrate circulating valve 28. When the water production circulation valve 26 and the concentrated water circulation valve 28 are opened, concentrated water and produced water obtained by system operation are collected in the raw water tank 1, the raw water is kept unchanged, the circulation is repeated, the system can achieve self-circulation operation, when the self-circulation operation is not needed, the two valves can be closed, and the produced water and the concentrated water of the system respectively return to the water production tank 2 and the concentrated water tank 3 and are respectively collected to measure the water quality.
In a further improved embodiment, the raw water main pipe 11 is provided with a second online monitoring device 38, a first temperature gauge 39, a first pressure gauge 40 and a first check valve 43, wherein the first check valve 43 is positioned between the raw water pump 12 and the raw water main valve 13.
In a further improved embodiment, a second raw water pipe 44 is connected between the raw water main pipe 11 and the raw water tank 1, a connection point of the second raw water pipe 44 and the raw water main pipe 11 is located between the first check valve 43 and the raw water main valve 11, and a second raw water valve 45 is arranged on the second raw water pipe 44.
As shown in fig. 4, the system further comprises a frame 46 which is of a sheet metal frame structure, a raw water tank 1, a water production tank 2 and a concentrated water tank 3 are installed at the bottom of the left side of the frame 46, a first reverse osmosis membrane device 4, a second reverse osmosis membrane device 5, a third reverse osmosis membrane device 6 and a fourth reverse osmosis membrane device 7 are installed in the middle of the left side of the frame, a raw water pump 12 is installed at the bottom of the right side of the frame 46, an electric control cabinet 47 is installed in the middle of the right side of the frame, and an electric control. The stand adopts the floor type design, and the whole stand adopts 316 stainless steel to make, and is firm, pleasing to the eye, the removal of being convenient for.
When the first raw water valve 1-5, the second raw water valve 1-6, the third raw water valve 1-7, the fourth raw water valve 1-8, the first concentrated water valve 3-5, the second concentrated water valve 3-6, the third concentrated water valve 3-7, the fourth concentrated water valve 3-8 and the parallel valve 48 are opened, the parallel operation of the first reverse osmosis membrane device 4, the second reverse osmosis membrane device 5, the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 7 can be realized, and the raw water flows out to produce water and concentrated water after only one reverse osmosis membrane device.
When the first raw water valve 1-5, the first primary valve 4-4, the second primary valve 4-5, the third primary valve 4-6 and the fourth concentrated water valve 3-8 are opened, the first reverse osmosis membrane device 4, the second reverse osmosis membrane device 5, the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 7 can be operated in series, and the raw water flows out to produce water and concentrated water after passing through the reverse osmosis membrane devices for four times.
When a first raw water valve 1-5, a second raw water valve 1-6, a third raw water valve 1-7, a fourth raw water valve 1-8, a first secondary valve 5-3, a second secondary valve 5-4, a third concentrated water valve 3-7 and a fourth concentrated water valve 3-8 are opened, concentrated water obtained after the raw water passes through a first reverse osmosis membrane device 4 and a second reverse osmosis membrane device 5 is shunted to enter the third reverse osmosis membrane device 6 and the fourth reverse osmosis membrane device 7 to form 2: 2 series mode.
When opening first raw water valve 1-5, second raw water valve 1-6, third raw water valve 1-7, first second grade valve 5-3, second grade valve 5-4, third one-level valve 4-6 and fourth dense water valve 3-8, the thick water that the raw water obtained after first reverse osmosis membrane device 4 and second reverse osmosis membrane device 5 gets into third reverse osmosis membrane device 6 and fourth reverse osmosis membrane device 7 in proper order, forms 2: 1: 1 in series mode.
The specific embodiments of the present invention are only for explaining the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the present embodiment as required without inventive contribution after reading the present specification, but all the embodiments are protected by patent laws within the scope of the claims of the present invention.
Claims (10)
1. A segmented reverse osmosis membrane detection system is characterized by comprising a raw water tank (1), a produced water tank (2), a concentrated water tank (3), an electric control device, a first reverse osmosis membrane device (4), a second reverse osmosis membrane device (5), a third reverse osmosis membrane device (6) and a fourth reverse osmosis membrane device (7) which are connected in parallel, wherein each reverse osmosis membrane device is provided with a raw water inlet (34), a produced water outlet (36) and a concentrated water outlet (35);
the raw water tank is communicated with raw water inlets of the reverse osmosis membrane devices through a raw water inlet pipe group and a raw water valve group respectively, the water production tank is communicated with produced water inlets of the reverse osmosis membrane devices through a produced water outlet pipe group and a produced water valve group respectively, and the concentrated water tank is communicated with concentrated water inlets of the reverse osmosis membrane devices through a concentrated water outlet pipe group and a concentrated water valve group respectively;
a raw water main pipe (11) is arranged between the raw water tank and the raw water inlet pipe group, a raw water pump (12) and a raw water main valve (13) are sequentially connected to the raw water main pipe, and the raw water pump is connected with an electric control device; a water production main pipe (14) is arranged between the water production tank and the water production and outlet pipe group, and a water production main valve (15) is arranged on the water production main pipe; a concentrated water main pipe (16) is arranged between the concentrated water tank and the concentrated water inlet pipe group, and a concentrated water main valve (17) is arranged on the concentrated water main pipe;
the concentrated water outlets of the first reverse osmosis membrane device and the second reverse osmosis membrane device are communicated to a raw water inlet pipe of a third reverse osmosis membrane device through a second water connecting pipe group and a second valve group.
2. The sectional reverse osmosis membrane detection system according to claim 1, wherein a first pressure transmitter (8) is arranged at a raw water inlet of each reverse osmosis membrane device, a second pressure transmitter (9) is connected at a concentrated water outlet of each reverse osmosis membrane device, a first online monitoring device (10) is connected at the downstream of a produced water outlet of each reverse osmosis membrane device, and the first pressure transmitter, the second pressure transmitter and the first online monitoring device are respectively connected with the electric control device.
3. The adjustable section reverse osmosis membrane detection system according to claim 1, further comprising a cleaning water tank (18), wherein the cleaning water tank is communicated with raw water inlets of the reverse osmosis membrane devices through a cleaning water inlet pipe group and a cleaning valve group, a cleaning water outlet main pipe (19) is arranged between the cleaning water tank and the cleaning water inlet pipe group, a cleaning water pump (20) is connected to the cleaning water outlet main pipe (19), the cleaning water tank is communicated with the water production main pipe through a water production tank cleaning pipe (21) and a water production tank cleaning valve (22), and the cleaning water tank is communicated with the concentrate main pipe through a concentrate tank cleaning pipe (23) and a concentrate tank cleaning valve (24).
4. The adjustable section reverse osmosis membrane detection system according to claim 1, wherein the raw water tank is communicated with the water production main pipe through a water production circulation pipe (25) and a water production circulation valve (26), and the raw water tank is communicated with the concentrated water main pipe through a concentrated water circulation pipe (27) and a concentrated water circulation valve (28).
5. The adjustable section reverse osmosis membrane detection system according to claim 1, wherein each of the first reverse osmosis membrane device, the second reverse osmosis membrane device, the third reverse osmosis membrane device and the fourth reverse osmosis membrane device comprises a reverse osmosis membrane (29), an isolation mesh (30) and a membrane shell (31), the membrane shell is made of transparent materials, a raw water inlet (34) and a concentrated water outlet (35) are formed in the bottom of the shell of the membrane shell, a produced water outlet (36) is formed in the top of the membrane shell, the reverse osmosis membrane is transversely installed in the membrane shell, and the isolation mesh is arranged on the produced water outlet side of the reverse osmosis membrane.
6. The adjustable segmented reverse osmosis membrane detection system according to claim 1, wherein a liquid level sensor (37) is mounted in the raw water tank.
7. The adjustable segmented reverse osmosis membrane detection system according to claim 1, wherein the raw water main is provided with a second online monitoring device (38), a first thermometer (39), a first pressure gauge (40) and a first check valve (43), and the first check valve is positioned between the raw water pump and the raw water main.
8. The adjustable segment reverse osmosis membrane detection system of claim 2, wherein a second temperature gauge (41) and a second pressure gauge (42) are further provided on the wash outlet manifold.
9. The adjustable segment reverse osmosis membrane detection system of claim 1, wherein a second raw water pipe (44) is connected between the raw water main and the raw water tank, a connection point of the second raw water pipe and the raw water main is located between the first check valve and the raw water main, and a second raw water valve (45) is arranged on the second raw water pipe.
10. The adjustable section reverse osmosis membrane detection system according to claim 1, characterized by further comprising a frame (46), wherein a raw water tank, a product water tank and a concentrated water tank are installed at the bottom of the left side of the frame, a first reverse osmosis membrane device, a second reverse osmosis membrane device, a third reverse osmosis membrane device and a fourth reverse osmosis membrane device are installed in the middle of the left side of the frame, a raw water pump is installed at the bottom of the right side of the frame, an electric control cabinet (47) is installed in the middle of the right side of the frame, and the electric control device is installed in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020066563.1U CN211636042U (en) | 2020-01-13 | 2020-01-13 | Adjustable section type reverse osmosis membrane detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111457A (en) * | 2020-01-13 | 2020-05-08 | 北京亦庄水务有限公司 | Adjustable section type reverse osmosis membrane detection system |
| CN114212902A (en) * | 2021-12-10 | 2022-03-22 | 北京城市排水集团有限责任公司 | System and method for multi-mode treatment of wastewater by forward osmosis technology |
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2020
- 2020-01-13 CN CN202020066563.1U patent/CN211636042U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111457A (en) * | 2020-01-13 | 2020-05-08 | 北京亦庄水务有限公司 | Adjustable section type reverse osmosis membrane detection system |
| CN114212902A (en) * | 2021-12-10 | 2022-03-22 | 北京城市排水集团有限责任公司 | System and method for multi-mode treatment of wastewater by forward osmosis technology |
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Address after: 100176 building 18-2, No. 2, Jingyuan North Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing (Yizhuang group, high-end industrial area of Beijing Pilot Free Trade Zone) Patentee after: Beijing Yizhuang Environmental Technology Group Co.,Ltd. Address before: 100176 No.5, Xihuan South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: Beijing Yizhuang Water Co.,Ltd. |
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