CN209778481U - Pretreatment device of reverse osmosis water purification system - Google Patents
Pretreatment device of reverse osmosis water purification system Download PDFInfo
- Publication number
- CN209778481U CN209778481U CN201920184932.4U CN201920184932U CN209778481U CN 209778481 U CN209778481 U CN 209778481U CN 201920184932 U CN201920184932 U CN 201920184932U CN 209778481 U CN209778481 U CN 209778481U
- Authority
- CN
- China
- Prior art keywords
- filter
- quartz sand
- water
- activated carbon
- flushing
- 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
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a reverse osmosis water purification system's preprocessing device relates to water treatment facilities technical field, has solved because of preprocessing device blocks up among the prior art, reduces the clearance of source aquatic impurity, influences reverse osmosis membrane life's technical problem. The pretreatment device comprises a quartz sand multi-medium filter, an activated carbon filter, a softening device and a precision filter, wherein a flushing component and a pressure monitoring component are arranged on the quartz sand multi-medium filter and/or the activated carbon filter, and the pressure monitoring component is used for monitoring the pressure difference between an inlet and an outlet of the quartz sand multi-medium filter and/or the activated carbon filter so as to start the flushing component to flush the quartz sand multi-medium filter and/or the activated carbon filter when the pressure difference between the inlet and the outlet of the quartz sand multi-medium filter and/or the activated carbon filter reaches a preset value. The utility model discloses a preprocessing device can improve reverse osmosis membrane's life.
Description
Technical Field
The utility model relates to a water treatment facilities technical field especially relates to a reverse osmosis water purification system's preprocessing device.
Background
in the face of the current severe situation of water consumption increase and water resource shortage, advanced treatment is carried out on special water resource such as effluent of urban and industrial sewage treatment plants to produce high-quality reclaimed water, and the key for solving the problems of water resource shortage and water environment pollution is achieved. The reverse osmosis technology utilizes a selective permeation membrane to separate salts and organic matters in the wastewater, and has better interception efficiency on small molecular organic matters, soluble inorganic salts or multivalent ions, so the reverse osmosis technology has wide application in the aspect of producing high-quality reclaimed water.
The reverse osmosis water purification system in the prior art generally comprises a pretreatment device, a reverse osmosis device and a sterilization device. The reverse osmosis water purification system can carry out primary pretreatment on source water through the pretreatment device to remove silt, colloid, suspended matters and the like in the source water; then the effluent of the pretreatment device is deeply purified by a reverse osmosis device, and the quality of the effluent reaches the national standard; and finally, the effluent of the reverse osmosis device is sterilized by a sterilization device, so that the secondary bacterial pollution is reduced. The reverse osmosis membrane in the reverse osmosis device is a core component of a water purification system, and the service life of the reverse osmosis membrane directly influences the cost of a water purification treatment process. Therefore, how to prolong the service life of the reverse osmosis membrane becomes a key research point of the reverse osmosis water purification process.
The applicant found that: the water quality condition of the effluent of the pretreatment device directly influences the service life of the reverse osmosis membrane. Specifically, the filter of preprocessing device can produce blocking phenomenon after operation a period, influences preprocessing device to the clearance of silt, colloid, suspended solid etc. in the impurity entering reverse osmosis membrane that does not get rid of, not only can reduce reverse osmosis unit's treatment effeciency, still can increase reverse osmosis unit's load, influences reverse osmosis unit's life. Therefore, in order to improve the service life of the reverse osmosis membrane, the pretreatment device in the prior art needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an one of them purpose provides a reverse osmosis water purification system's preprocessing device, has solved because of preprocessing device blocks up among the prior art, reduces the clearance of source aquatic impurity, influences reverse osmosis membrane life's technical problem. The technical effects that the preferred technical scheme of the utility model can produce are explained in detail in the following.
In order to achieve the above purpose, the utility model provides a following technical scheme:
The utility model discloses a preprocessing device of reverse osmosis water purification system, including quartz sand multi-media filter, activated carbon filter, softening installation and precision filter, wherein, quartz sand multi-media filter and/or be provided with on the activated carbon filter and wash subassembly and pressure monitoring subassembly, the pressure monitoring subassembly is used for the monitoring quartz sand multi-media filter and/or activated carbon filter's exit differential pressure, with quartz sand multi-media filter and/or activated carbon filter's exit differential pressure reaches when the default, starts it is right to wash the subassembly quartz sand multi-media filter and/or activated carbon filter washes.
According to a preferred embodiment, the quartz sand multi-media filter is connected to the rear end of a source water tank, and the quartz sand multi-media filter, the activated carbon filter, the softening device and the precision filter are sequentially connected in series, so that effluent of the source water tank can be pretreated sequentially through the quartz sand multi-media filter, the activated carbon filter, the softening device and the precision filter.
According to a preferred embodiment, the flushing assembly comprises a first flushing assembly, the first flushing assembly is arranged on two sides of the quartz sand multi-media filter, and water is introduced into the first flushing assembly to achieve positive flushing and/or back flushing of the quartz sand multi-media filter.
According to a preferred embodiment, the first flushing component comprises a first water inlet valve, a first backwashing water inlet valve, a first positive flushing water discharge valve and a first backwashing water discharge valve, wherein the first water inlet valve and the first positive flushing water discharge valve form a positive flushing passage of the quartz sand multimedia filter, and the first backwashing water inlet valve and the first backwashing water discharge valve form a backwashing passage of the quartz sand multimedia filter.
According to a preferred embodiment, the first flushing assembly further comprises a first water production valve, the first water production valve is arranged between the quartz sand multi-media filter and the activated carbon filter, and the first water production valve is in a closed state when the quartz sand multi-media filter is subjected to positive flushing and/or back flushing.
According to a preferred embodiment, the pressure monitoring assembly comprises a first pressure monitoring assembly, the first pressure monitoring assembly comprises a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is arranged between a first water inlet valve and the quartz sand multi-media filter to monitor the water inlet pressure of the quartz sand multi-media filter, and the second pressure sensor is arranged behind a first water production valve to monitor the water outlet pressure of the quartz sand multi-media filter.
According to a preferred embodiment, the flushing assembly comprises a second flushing assembly, the second flushing assembly is arranged on two sides of the activated carbon filter, and water is introduced into the second flushing assembly to complete positive flushing and/or back flushing of the activated carbon filter.
According to a preferred embodiment, the second flushing assembly comprises a second water inlet valve, a second backwashing water inlet valve, a second positive flushing water discharge valve and a second backwashing water discharge valve, wherein the second water inlet valve and the second positive flushing water discharge valve form a positive flushing path of the activated carbon filter, and the second backwashing water inlet valve and the second backwashing water discharge valve form a backwashing path of the activated carbon filter.
According to a preferred embodiment, the second flushing assembly further comprises a second water production valve which is arranged between the carbon filter and the softening device and is in a closed state during positive flushing and/or back flushing of the carbon filter.
According to a preferred embodiment, the pressure monitoring assembly comprises a second pressure monitoring assembly comprising a third pressure sensor and a fourth pressure sensor, wherein the third pressure sensor is arranged between the second water inlet valve and the activated carbon filter to monitor the water inlet pressure of the activated carbon filter, and the fourth pressure sensor is arranged behind the second water production valve to monitor the water outlet pressure of the activated carbon filter.
The utility model discloses a pretreatment device of reverse osmosis water purification system has following beneficial technological effect at least:
The utility model discloses a reverse osmosis water purification system's preprocessing device, set up on quartz sand multimedium filter and/or activated carbon filter and wash subassembly and pressure monitoring subassembly, on the one hand, through letting in clear water in washing the subassembly, the impulsive force of usable clear water makes quartz sand multimedium filter and/or activated carbon filter get the filtering layer not hard up, thereby make the thing of holding back that adsorbs in quartz sand multimedium filter and/or activated carbon filter peel off and taken away by rivers, make it resume adsorption function, it is low to avoid causing preprocessing device to the clearance of impurity because of the filter blocking, increase reverse osmosis membrane's load, influence reverse osmosis membrane's life's problem.
On the other hand, through the utility model discloses a pressure monitoring subassembly monitoring quartz sand multi-media filter and/or activated carbon filter's exit differential pressure, can start the washing subassembly in appropriate time, avoid starting under the good condition of quartz sand multi-media filter and/or activated carbon filter filtering quality to wash the subassembly and cause the extravagant problem of sparge water, also can avoid just starting under the relatively poor condition of quartz sand multi-media filter and/or activated carbon filter filtering quality to wash the subassembly and cause preprocessing device to hang down to the clearance of impurity, increase reverse osmosis membrane's load, influence reverse osmosis membrane's life's problem. The utility model discloses a pressure monitoring subassembly monitoring quartz sand multimedium filter and/or activated carbon filter's exit differential pressure can realize real time monitoring, and the accuracy is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a first preferred embodiment of a pre-treatment unit of a reverse osmosis water purification system;
FIG. 2 is a schematic diagram of a second preferred embodiment of a pre-treatment device of a reverse osmosis water purification system;
Fig. 3 is a schematic diagram of a third preferred embodiment of a pre-treatment device of a reverse osmosis water purification system.
In the figure: 1-quartz sand multi-media filter; 2-an activated carbon filter; 3-a softening device; 4-a precision filter; 51-a first inlet valve; 52-first backwash feed valve; 53-first positive flush drain valve; 54-a first backwash drain valve; 55-a first water production valve; 61-a first pressure sensor; 62-a second pressure sensor; 71-a second inlet valve; 72-a second backwash feed valve; 73-a second positive flush drain valve; 74-a second backwash drain valve; 75-a second water production valve; 81-a third pressure sensor; 82-fourth pressure sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The pretreatment device of the reverse osmosis water purification system of the present embodiment is described in detail below with reference to the accompanying drawings 1 to 3 of the specification.
The pretreatment device of the reverse osmosis water purification system of the embodiment comprises a quartz sand multi-media filter 1, an activated carbon filter 2, a softening device 3 and a precision filter 4, as shown in fig. 1. The quartz sand multi-medium filter 1 and/or the activated carbon filter 2 are/is provided with a flushing component and a pressure monitoring component, the pressure monitoring component is used for monitoring the pressure difference of an inlet and an outlet of the quartz sand multi-medium filter 1 and/or the activated carbon filter 2, and when the pressure difference of the inlet and the outlet of the quartz sand multi-medium filter 1 and/or the activated carbon filter 2 reaches a preset value, the flushing component is started to flush the quartz sand multi-medium filter 1 and/or the activated carbon filter 2.
The preprocessing device of reverse osmosis water purification system of this embodiment, set up on quartz sand multimedium filter 1 and/or activated carbon filter 2 and wash subassembly and pressure monitoring subassembly, on the one hand, through letting in clear water in washing the subassembly, the impulsive force of usable clear water makes quartz sand multimedium filter 1 and/or activated carbon filter 2 get the filtering layer not hard up, thereby make the retentate that adsorbs in quartz sand multimedium filter 1 and/or activated carbon filter 2 peel off and taken away by rivers, make it resume adsorption function, it is low to avoid causing preprocessing device to the clearance of impurity because of the filter blocks up, increase reverse osmosis membrane's load, influence reverse osmosis membrane's life's problem.
On the other hand, through the pressure monitoring subassembly monitoring quartz sand multi-media filter 1 of this embodiment and/or the inlet and outlet pressure differential of active carbon filter 2, can start the washing subassembly in suitable time, avoid starting to wash the subassembly and cause the extravagant problem of sparge water under the good condition of filter performance of quartz sand multi-media filter 1 and/or active carbon filter 2, also can avoid just starting to wash the subassembly and cause the low clearance of preprocessing device to impurity under the relatively poor condition of filter performance of quartz sand multi-media filter 1 and/or active carbon filter 2, increase reverse osmosis membrane's load, influence reverse osmosis membrane's life's problem. In the embodiment, the pressure monitoring assembly is adopted to monitor the pressure difference between the inlet and the outlet of the quartz sand multi-medium filter 1 and/or the activated carbon filter 2, so that real-time monitoring can be realized, and the accuracy is high.
Preferably, when the pressure monitoring assembly monitors that the pressure difference between the inlet and the outlet of the quartz sand multi-media filter 1 and/or the activated carbon filter 2 is 0.03-0.07 MPa, the flushing assembly can be started to flush the quartz sand multi-media filter 1 and/or the activated carbon filter 2.
according to a preferred embodiment, the quartz sand multi-media filter 1 is connected to the rear end of the source water tank, and the quartz sand multi-media filter 1, the activated carbon filter 2, the softening device 3 and the precision filter 4 are connected in series in sequence, so that the effluent of the source water tank can be pretreated by the quartz sand multi-media filter 1, the activated carbon filter 2, the softening device 3 and the precision filter 4 in sequence. Preferably, the activated carbon filter 2 is a nutshell activated carbon filter. The softening device 3 is a cation exchange resin. The pore size of the ultrafilter 4 was 5 μm.
The sediment, rust, colloidal substance, suspended solid and other substances harmful to human body in the source water can be removed through the quartz sand multi-media filter 1 in the preferred technical scheme of this embodiment, pigment, peculiar smell, biochemical organic matter in the water can be removed through the active carbon filter 2, the residual chlorine value and the pesticide pollution of water and other pollutants harmful to human body can be reduced, the hardness of water can be reduced through the softening installation 3, calcium and magnesium ions (the main components forming the incrustation scale) in the water are removed, the service life of the reverse osmosis membrane is effectively prolonged, water can be further purified through the precision filter 4, the turbidity and the chromaticity of the water are optimized, and the requirement of the water inlet condition of the reverse osmosis device is guaranteed to be met. The preferred technical scheme of this embodiment passes through the level four preliminary treatment process, can effectively get rid of the impurity in the source aquatic, ensures to reach the requirement of reverse osmosis unit water inlet condition, guarantees the water yield of equipment, prolongs the life of equipment.
Example 1
according to a preferred embodiment, the flushing assembly comprises a first flushing assembly which is arranged at two sides of the quartz sand multimedia filter 1, and the positive flushing and/or the back flushing of the quartz sand multimedia filter 1 are completed by passing water into the first flushing assembly.
preferably, the first flushing assembly includes a first feed valve 51, a first backwash feed valve 52, a first positive flush drain valve 53 and a first backwash drain valve 54, as shown in FIG. 1. Wherein, the first water inlet valve 51 and the first positive flushing water discharge valve 53 form a positive flushing passage of the quartz sand multi-media filter 1. The first backwash water inlet valve 52 and the first backwash water discharge valve 54 constitute a backwash path of the quartz sand multimedia filter 1. Preferably, the first flushing assembly further comprises a first water production valve 55, the first water production valve 55 is arranged between the quartz sand multi-media filter 1 and the activated carbon filter 2, and the first water production valve 55 is in a closed state when the quartz sand multi-media filter 1 is positively flushed and/or backwashed.
As shown in fig. 1, a first feed valve 51 is disposed between the source water tank and the quartz sand multimedia filter 1; the first water production valve 55 is arranged between the quartz sand multi-medium filter 1 and the water inlet end of the activated carbon filter 2; one end of the first back flush water inlet valve 52 is arranged at the front end of the first water inlet valve 51, and the other end is arranged at the rear end of the quartz sand multi-media filter 1; the first positive flushing drain valve 53 is arranged between the quartz sand multi-media filter 1 and the first water production valve 55; the first back flush drain valve 54 is disposed between the first feed valve 51 and the silica sand multimedia filter 1.
According to a preferred embodiment, the pressure monitoring assembly comprises a first pressure monitoring assembly comprising a first pressure sensor 61 and a second pressure sensor 62, as shown in fig. 1. Wherein, the first pressure sensor 61 is arranged between the first water inlet valve 51 and the quartz sand multi-media filter 1 to monitor the water inlet pressure of the quartz sand multi-media filter 1. The second pressure sensor 62 is disposed behind the first water production valve 55 to monitor the effluent pressure of the quartz sand multimedia filter 1.
specifically, the preferred technical scheme of the embodiment washes the quartz sand multi-media filter 1 as follows: when the differential pressure monitored by the first pressure sensor 61 and the second pressure sensor 62 reaches a preset value, the first water inlet valve 51 and the first positive flushing drain valve 53 are opened, the first backwashing water inlet valve 52, the first backwashing drain valve 54 and the first water production valve 55 are closed, so that water flows into the quartz sand multi-media filter 1 through the first water inlet valve 51 and is discharged through the first positive flushing drain valve 53, and the positive flushing process is completed. Or the first backwashing water inlet valve 52 and the first backwashing water discharge valve 54 are opened, the first water inlet valve 51, the first positive flushing water discharge valve 53 and the first water production valve 55 are closed, so that water flows into the quartz sand multimedia filter 1 through the first backwashing water inlet valve 52 and is discharged through the first backwashing water discharge valve 54, and the backwashing process is completed.
As shown in fig. 1, when the adsorption capacity of the quartz sand multi-media filter 1 is normal, the pretreated water production pathway is as follows: and closing the first back flush water inlet valve 52, the first positive flush water discharge valve 53 and the first back flush water discharge valve 54, allowing the source water in the source water tank to enter the quartz sand multimedia filter 1 through the first water inlet valve 51, allowing the produced water adsorbed by the quartz sand multimedia filter 1 to flow out through the first water production valve 55, and allowing the produced water to enter the next-stage activated carbon filter 2.
Example 2
according to a preferred embodiment, the flushing assembly comprises a second flushing assembly, which is arranged on both sides of carbon filter 2 and through which water is passed to perform a positive flushing and/or a back flushing of carbon filter 2.
preferably, the second flushing assembly includes a second feed valve 71, a second backwash feed valve 72, a second positive flush drain valve 73 and a second backwash drain valve 74, as shown in FIG. 2. Wherein the second water inlet valve 71 and the second positive flushing drain valve 73 form a positive flushing passage of the activated carbon filter 2. The second backwash water feed valve 72 and the second backwash water discharge valve 74 constitute a backwash path of the carbon filter 2.
Preferably, the second flushing assembly further includes a second water production valve 75, the second water production valve 75 is disposed between the carbon filter 2 and the softening device 3, and the second water production valve 75 is in a closed state when the carbon filter 2 is subjected to forward flushing and/or back flushing.
As shown in fig. 2, the second water inlet valve 71 is arranged between the quartz sand multi-media filter 1 and the activated carbon filter 2; the second water production valve 75 is arranged between the activated carbon filter 2 and the water inlet end of the softening device 3; one end of the second backwashing water inlet valve 72 is arranged at the front end of the second water inlet valve 71, and the other end is arranged at the rear end of the activated carbon filter 2; the second positive flushing drain valve 73 is arranged between the activated carbon filter 2 and the second water production valve 75; a second backwash drain valve 74 is provided between the second feed valve 71 and the carbon filter 2.
According to a preferred embodiment, the pressure monitoring assembly comprises a second pressure monitoring assembly comprising a third pressure sensor 81 and a fourth pressure sensor 82, as shown in fig. 2. Wherein, the third pressure sensor 81 is disposed between the second water inlet valve 71 and the activated carbon filter 2 to monitor the water inlet pressure of the activated carbon filter 2. A fourth pressure sensor 82 is disposed after the second water production valve 75 to monitor the effluent pressure of the carbon filter 2.
specifically, the preferred technical solution of this embodiment is as follows: when the differential pressure monitored by the third pressure sensor 81 and the fourth pressure sensor 82 reaches a preset value, the second water inlet valve 71 and the second positive flushing drain valve 73 are opened, the second backwashing water inlet valve 72, the second backwashing drain valve 74 and the second water production valve 75 are closed, so that water flows into the activated carbon filter 2 through the second water inlet valve 71 and is discharged through the second positive flushing drain valve 73, and the positive flushing process is completed. Or the second backwashing water inlet valve 72 and the second backwashing water discharge valve 74 are opened, the second water inlet valve 71, the second positive flushing water discharge valve 73 and the second water production valve 75 are closed, so that water flows through the second backwashing water inlet valve 72, enters the activated carbon filter 2 and is discharged through the second backwashing water discharge valve 74, and the backwashing process is completed.
As shown in fig. 2, when the adsorption capacity of the activated carbon filter 2 is normal, the water production pathway after pretreatment is as follows: and closing the second back flush water inlet valve 72, the second positive flush water drain valve 73 and the second back flush water drain valve 74, allowing the produced water of the quartz sand multimedia filter 1 to enter the activated carbon filter 2 through the second water inlet valve 71, allowing the produced water adsorbed by the activated carbon filter 2 to flow out through the second water producing valve 75, and allowing the produced water to enter the next softening device 3.
Example 3
This example is a further modification of examples 1 and 2, and only the modified portions will be described. Preferably, according to the preferred technical scheme of the embodiment, the quartz sand multi-media filter 1 and the activated carbon filter 2 are simultaneously provided with the flushing component and the pressure monitoring component.
As shown in fig. 3, a quartz sand multi-media filter 1 and an activated carbon filter 2 are provided with a flushing assembly and a pressure monitoring assembly, which are different from those of the embodiment 1 and the embodiment 2 in that: the first water producing valve 55 and the second water inlet valve 71 may be the same valve, and the second pressure sensor 62 and the third pressure sensor 81 may also be the same pressure sensor, so as to simplify the structure of the pretreatment device.
According to the preferable technical scheme of the embodiment, the quartz sand multi-medium filter 1 and/or the activated carbon filter 2 can be cleaned for multiple times according to the running conditions of the filter, namely the forward flushing process and the back flushing process are repeated, so that the adsorption capacity of the filter is recovered.
According to a preferred embodiment, the softening device 3 is a weak acid cation resin exchange column and a strong acid cation resin exchange column. Preferably, the weakly acidic cation exchange resin and the strongly acidic cation exchange resin in softening unit 3 are in the hydrogen form, which removes substantially all (greater than 99%) of the non-hydrogen cations, thereby substantially reducing cationic scaling of the reverse osmosis membrane.
According to a preferred embodiment, a pH adjusting tank is connected downstream of the softening device 3. Preferably, the pH of the water discharged from the softening device 3 is adjusted to 8.5-12 by a pH adjusting tank, and then enters the precision filter 4. The preferred technical scheme of this embodiment adjusts the pH of softening installation 3 play water to 8.5 ~ 12, and reverse osmosis membrane moves under high pH value, but greatly reduced silica scale or biological scale deposit, and on the other hand, the desorption rate under the high pH value of weak ionization nature material (such as carbon dioxide, silicon metavanadate etc.) also improves greatly. The preferred technical scheme of this embodiment adjusts the pH of softening installation 3 play water to 8.5 ~ 12 promptly, not only can improve reverse osmosis membrane's life, can also improve weak ionicity material's desorption rate.
the above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The pretreatment device of the reverse osmosis water purification system is characterized by comprising a quartz sand multi-medium filter (1), an activated carbon filter (2), a softening device (3) and a precision filter (4),
The quartz sand multi-media filter (1) and/or the activated carbon filter (2) are/is provided with a flushing component and a pressure monitoring component, the pressure monitoring component is used for monitoring the inlet-outlet pressure difference of the quartz sand multi-media filter (1) and/or the activated carbon filter (2),
When the pressure difference between the inlet and the outlet of the quartz sand multi-media filter (1) and/or the activated carbon filter (2) reaches a preset value, the flushing assembly is started to flush the quartz sand multi-media filter (1) and/or the activated carbon filter (2).
2. The pretreatment device of a reverse osmosis water purification system according to claim 1, wherein the quartz sand multi-media filter (1) is connected to the rear end of a source water tank, and the quartz sand multi-media filter (1), the activated carbon filter (2), the softening device (3) and the precision filter (4) are connected in series in sequence, so that the effluent of the source water tank can be pretreated by sequentially passing through the quartz sand multi-media filter (1), the activated carbon filter (2), the softening device (3) and the precision filter (4).
3. The pretreatment device of a reverse osmosis water purification system according to claim 1, wherein the flushing assembly comprises a first flushing assembly, the first flushing assembly is arranged at two sides of the quartz sand multimedia filter (1), and the forward flushing and/or the back flushing of the quartz sand multimedia filter (1) are completed by passing water into the first flushing assembly.
4. The pretreatment device of a reverse osmosis water purification system according to claim 3, wherein the first flushing assembly comprises a first water inlet valve (51), a first backwash water inlet valve (52), a first positive flushing drain valve (53), and a first backwash drain valve (54), wherein,
the first water inlet valve (51) and the first positive flushing drain valve (53) form a positive flushing passage of the quartz sand multi-medium filter (1),
the first backwashing water inlet valve (52) and the first backwashing water discharge valve (54) form a backwashing passage of the quartz sand multi-media filter (1).
5. The pretreatment device of a reverse osmosis water purification system according to claim 4, wherein the first flushing component further comprises a first water production valve (55), the first water production valve (55) is disposed between the quartz sand multimedia filter (1) and the activated carbon filter (2), and
When the quartz sand multi-medium filter (1) is positively flushed and/or backwashed, the first water production valve (55) is in a closed state.
6. The pretreatment device of a reverse osmosis water purification system according to claim 1, wherein the pressure monitoring assembly comprises a first pressure monitoring assembly comprising a first pressure sensor (61) and a second pressure sensor (62), wherein,
The first pressure sensor (61) is arranged between the first water inlet valve (51) and the quartz sand multi-media filter (1) to monitor the water inlet pressure of the quartz sand multi-media filter (1),
The second pressure sensor (62) is arranged behind the first water production valve (55) to monitor the water outlet pressure of the quartz sand multi-medium filter (1).
7. the pretreatment device of a reverse osmosis water purification system according to claim 1, wherein the flushing assembly comprises a second flushing assembly disposed at both sides of the activated carbon filter (2), and wherein the positive flushing and/or the back flushing of the activated carbon filter (2) is accomplished by passing water into the second flushing assembly.
8. The pretreatment device of a reverse osmosis water purification system according to claim 7, wherein the second flushing assembly comprises a second water inlet valve (71), a second backwash water inlet valve (72), a second positive flushing drain valve (73), and a second backwash drain valve (74), wherein,
The second water inlet valve (71) and the second positive flushing drain valve (73) form a positive flushing passage of the activated carbon filter (2),
the second backwashing water inlet valve (72) and the second backwashing water discharge valve (74) form a backwashing passage of the activated carbon filter (2).
9. The pretreatment device of a reverse osmosis water purification system according to claim 8, wherein the second flushing assembly further comprises a second water production valve (75), the second water production valve (75) being disposed between the carbon filter (2) and the softening device (3), and
When the active carbon filter (2) is positively and/or reversely flushed, the second water production valve (75) is in a closed state.
10. The pretreatment device of a reverse osmosis water purification system according to claim 1, wherein the pressure monitoring assembly comprises a second pressure monitoring assembly comprising a third pressure sensor (81) and a fourth pressure sensor (82), wherein,
The third pressure sensor (81) is arranged between the second water inlet valve (71) and the activated carbon filter (2) to monitor the water inlet pressure of the activated carbon filter (2),
the fourth pressure sensor (82) is arranged behind the second water production valve (75) to monitor the water outlet pressure of the activated carbon filter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920184932.4U CN209778481U (en) | 2019-02-01 | 2019-02-01 | Pretreatment device of reverse osmosis water purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920184932.4U CN209778481U (en) | 2019-02-01 | 2019-02-01 | Pretreatment device of reverse osmosis water purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209778481U true CN209778481U (en) | 2019-12-13 |
Family
ID=68794646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920184932.4U Active CN209778481U (en) | 2019-02-01 | 2019-02-01 | Pretreatment device of reverse osmosis water purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209778481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111196639A (en) * | 2020-01-16 | 2020-05-26 | 西藏华阳供热工程服务有限公司 | Reverse osmosis water purifier and operation method thereof |
-
2019
- 2019-02-01 CN CN201920184932.4U patent/CN209778481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111196639A (en) * | 2020-01-16 | 2020-05-26 | 西藏华阳供热工程服务有限公司 | Reverse osmosis water purifier and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021223369A1 (en) | Chemical-free electric method combined treatment process system and method for circulating water of thermal power plant | |
| CN205603387U (en) | Strong brine zero release divides membrane concentrator of matter crystallization | |
| CN104671502A (en) | Online chemical oxidation dynamic membrane wastewater treatment system | |
| CN104529018A (en) | Process for treating and recycling printing and dyeing wastewater by virtue of electro-coagulation | |
| CN201140992Y (en) | Purifier with low wastewater discharging | |
| CN108929002A (en) | A kind of reverse osmosis thick water treatment method of landfill leachate | |
| CN109320001B (en) | High-salt high-turbidity industrial wastewater zero-emission system and process thereof | |
| CN209778481U (en) | Pretreatment device of reverse osmosis water purification system | |
| CN1810662A (en) | Technological process of treating sewage into pure water | |
| CN203498200U (en) | Equipment for treating and reusing wastewater containing lead | |
| CN113045059A (en) | Treatment system and treatment process for realizing zero discharge of wastewater by full-membrane method | |
| CN211972026U (en) | Ultrapure water preparation system for laboratory | |
| CN209771840U (en) | Reverse osmosis water purification system with washing function | |
| CN202671334U (en) | Double-film method heavy metal waste water purification treatment reuse device | |
| CN109231648A (en) | A kind of micro- waste water reverse osmosis water purifier for being not easy stifled film and saving filter core consumptive material | |
| CN214004228U (en) | Reverse osmosis water purification system for electroplating wastewater treatment | |
| CN205011525U (en) | Electron industrial water's purification device | |
| CN212151698U (en) | Multiple ion exchange formula drainage clean system and water purifier | |
| CN212246605U (en) | Water-saving reverse osmosis water purifier capable of utilizing waste water reuse complementary energy | |
| CN212954669U (en) | Multi-stage filtration water purification system and water purifier | |
| CN212954588U (en) | Multi-group desalination filtration type water purification system and water purifier | |
| CN100551848C (en) | Collection membrane sepn and electrodeionization are produced the method and apparatus of water for pharmaceutical purposes | |
| CN205874128U (en) | Dyeing and finishing waste water treatment and retrieval and utilization device | |
| CN108439634B (en) | Method for recycling viscose fiber acid wastewater by adopting two-stage special membrane | |
| CN109607683A (en) | A kind of mutual backwashing ultrafiltration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |