CN220467663U - Drinking water safety purifying device - Google Patents
Drinking water safety purifying device Download PDFInfo
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- CN220467663U CN220467663U CN202322067801.7U CN202322067801U CN220467663U CN 220467663 U CN220467663 U CN 220467663U CN 202322067801 U CN202322067801 U CN 202322067801U CN 220467663 U CN220467663 U CN 220467663U
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- ultrafiltration membrane
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Abstract
The utility model discloses a drinking water safety purifying device, comprising: the ultrafiltration membrane component is communicated with the water inlet component through a pipeline, the water inlet component is used for supplying water to the ultrafiltration membrane component, and the ultrafiltration membrane component is used for filtering water in the pipeline which is introduced into the water inlet component so as to remove harmful impurities contained in the water; the air backwashing device is communicated with the ultrafiltration membrane component and is used for carrying out air washing on the ultrafiltration membrane component; the chemical cleaning equipment is arranged between the water inlet component and the ultrafiltration membrane component and is used for chemically cleaning pollutants in water. The utility model provides a pair of drinking water safety purification device carries out filtration treatment through the water supply of milipore filter subassembly to the subassembly that intakes, and air backwash equipment can carry out the gas wash to milipore filter subassembly to guarantee that milipore filter subassembly is in efficient filtration state, air backwash equipment fail the organic matter of sanitization and need carry out chemical cleaning through chemical cleaning equipment, make the water after filtering can satisfy the sanitation standard of drinking water.
Description
Technical Field
The utility model relates to the technical field of water purification, in particular to a drinking water safety purification device.
Background
Regional water supply in small towns, villages, scenic spots, service areas and the like is basic, long-distance and general Hui Xing civil engineering. Since 2005, tap water is used by more than 80% of rural residents in China through the construction of drinking water safety engineering for many years, and the drinking water condition is obviously improved. However, because of factors such as various regional environments and unbalanced development among regions in China, regional water supply also has the problems that water treatment technology and facilities fall behind, and drinking water safety cannot be guaranteed.
Most raw water for regional water supply is directly supplied to nearby residents for drinking without any treatment or after simple sediment sand filtration and disinfection treatment, so that the microbial safety is difficult to ensure, the turbidity of the water supply is usually between 1NTU and 3NTU, and the special condition can also exceed 10NTU (according to the requirements of sanitary standard of domestic drinking water (GB 5749-2022), and the turbidity is lower than 1 NTU); the water treatment facilities behind the water source suddenly change emergency capability is poor, and the water quality fluctuation of the water source is large in heavy rain, flood and drought, so that the drinking water safety cannot be ensured.
Along with the application of ultrafiltration technology in drinking water industry, the quality of drinking water is continuously improved, but the conventional ultrafiltration device still has the problems of low water recovery rate, high running cost, insufficient filtration precision and insufficient management profession.
In summary, how to improve the water purifying effect of the water purifying device is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present utility model aims to provide a drinking water safety purifying device, which can purify drinking water, and the produced water reaches the sanitary standard.
In order to achieve the above object, the present utility model provides the following technical solutions:
a drinking water safety purification device, comprising:
the ultrafiltration membrane component is communicated with the water inlet component through a pipeline, the water inlet component is used for supplying water to the ultrafiltration membrane component, and the ultrafiltration membrane component is used for filtering water in the pipeline which is introduced into the water inlet component so as to remove harmful impurities contained in the water;
the air backwashing device is communicated with the ultrafiltration membrane component and is used for carrying out air washing on the ultrafiltration membrane component;
the chemical cleaning equipment is arranged between the water inlet component and the ultrafiltration membrane component and is used for chemically cleaning the ultrafiltration membrane component.
Preferably, the ultrafiltration membrane component, the air backwashing equipment and the chemical cleaning equipment are all in signal connection with a control system.
Preferably, the air backwashing equipment comprises an air compressor, a cold dryer, a gas control cabinet and an air flowmeter, wherein the air compressor, the cold dryer, the gas control cabinet and the air flowmeter are sequentially communicated, the air flowmeter and the water inlet assembly are connected to the water inlet end of the ultrafiltration membrane assembly, the air compressor is used for providing compressed air, the cold dryer is used for removing moisture in the compressed air, and the gas control cabinet is used for air washing of the ultrafiltration membrane assembly.
Preferably, the chemical cleaning device comprises a cleaning medicament barrel and a cleaning dosing pump, wherein the cleaning medicament barrel is used for storing chemical medicaments, the cleaning dosing pump is communicated with the cleaning medicament barrel, and the cleaning dosing pump is used for introducing the chemical medicaments in the cleaning medicament barrel into a pipeline between the water inlet assembly and the ultrafiltration membrane assembly.
Preferably, the water inlet assembly comprises a water inlet pump, a water inlet valve, a differential pressure transmitter and a thermocouple, wherein the water inlet pump, the water inlet valve, the differential pressure transmitter and the thermocouple are sequentially communicated, and the differential pressure transmitter is used for measuring the water pressure difference in the pipeline.
Preferably, the ultrafiltration membrane device further comprises a water production assembly, wherein the water production assembly is communicated with the ultrafiltration membrane assembly, the water production assembly comprises a water production valve, a water production flowmeter and a water production turbidity meter, the water production valve, the water production flowmeter and the water production turbidity meter are sequentially communicated, the water production valve is used for controlling whether water is discharged, the water production flow meter is used for detecting water yield, and the water production turbidity meter is used for detecting impurity content in the discharged water.
According to the drinking water safety purification device provided by the utility model, the ultrafiltration membrane component is used for filtering the water supply of the water inlet component, the air backwashing equipment can be used for carrying out air washing on the ultrafiltration membrane component, and the pollutants trapped during the filtration of the ultrafiltration membrane component can be cleaned and discharged in the air washing process, so that the membrane operation flux of the ultrafiltration membrane component is ensured, the ultrafiltration membrane component can be in an efficient filtration state, and the organic matters which are not cleaned by the air backwashing equipment are required to be chemically cleaned by the chemical cleaning equipment, so that the filtered water can meet the sanitary standard of drinking water.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a process flow chart of the drinking water safety purifying device provided by the utility model.
In fig. 1, reference numerals include:
1 is a water inlet pump, 2 is an ultrafiltration membrane component, 3 is an air compressor, 4 is a cold dryer, 5 is an air control cabinet, 6 is a cleaning medicament barrel, 7 is a cleaning adding pump, 8 is a differential pressure transmitter, 9 is a thermocouple, 10 is a water production flowmeter, 11 is a water production turbidity meter, 12 is an air flowmeter, 13 is a water inlet valve, 14 is a water production valve, 15 is an exhaust valve, 16 is a water drain valve, 17 is a backwash valve, 18 is a gas dispersion disc aeration valve, 19 is a pressure relief valve, 20 is a central tube aeration valve, 21 is a primary pressure relief valve, 22 is a secondary pressure relief valve, 23 is a water inlet pipe, 24 is a water production pipe, 25 is an exhaust pipe, 26 is a water outlet pipe, 27 is a compressed air pipe, and 28 is a cleaning pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The core of the utility model is to provide a drinking water safety purification device which can filter water to the sanitary standard.
Referring to fig. 1, the present application provides a drinking water safety purifying device, which includes: the ultrafiltration membrane component 2 is communicated with the water inlet component through a pipeline, the water inlet component is used for supplying water to the ultrafiltration membrane component 2, and the ultrafiltration membrane component 2 is used for filtering water which is introduced into the pipeline by the water inlet component so as to remove harmful impurities contained in the water; the air backwashing device is communicated with the ultrafiltration membrane component 2 and is used for carrying out air washing on the ultrafiltration membrane component 2; the chemical cleaning equipment is arranged between the water inlet component and the ultrafiltration membrane component 2 and is used for chemically cleaning the ultrafiltration membrane component 2.
The bottom of the ultrafiltration membrane component 2 is provided with a water inlet, an air dispersing disc air inlet, a central tube air inlet, a water outlet, and a water producing port and an air outlet, wherein the water inlet, the water producing port and the air outlet are respectively connected by a flange, and the air dispersing disc air inlet, the central tube air inlet and the water outlet are respectively connected by internal threads. The water inlet is connected with the water inlet pipe 23, the water producing port is connected with the water producing pipe 24, the air outlet is connected with the air discharging pipe 25, the water discharging port is connected with the water discharging pipe 26, and the air distributing disc air inlet and the central pipe air inlet are connected with the compressed air pipe 27.
Specifically, the water inlet assembly conveys the water resource which does not reach the standard to the ultrafiltration membrane assembly 2 for ventilationFiltering by ultrafiltration membrane component 2, wherein the ultrafiltration membrane component 2 adopts hollow fiber ultrafiltration membrane, the shell is made of 304 stainless steel, the filter core is made of hydrophilized PVDF (polyvinylidene difluoride, namely polyvinylidene fluoride), and the area of single-support membrane is set to 40m 2 The device can be suitable for high-turbidity raw water regulation, the operation mode adopts external pressure type full-quantity filtration, no concentrated water is generated in the filtration process, the temperature is controlled between 5 ℃ and 40 ℃ in the operation process, the maximum transmembrane pressure difference reaches 0.3MPa, the device has a unique air backwashing flow, the clear water backwashing flow in the conventional water purification process can be omitted, a high-power clear water backwashing pump is omitted, the operation power is reduced, the device energy consumption is lower, the device operation cost is about 0.3-0.35 yuan/ton of water, the water recovery rate can reach more than 98.8%, the membrane aperture is 0.02 mu m, most of bacteria, viruses, suspended matters and other impurities in raw water can be trapped, and beneficial substances such as mineral substances, trace elements and the like in water can be reserved in water, so that higher water quality can be obtained. The running flux is 100-200L/m 2 H, which is 200% higher than the traditional ultrafiltration design value, and the occupied area of the device is smaller.
The air backwashing flow is carried out on the basis of filtering for a period of time by the ultrafiltration membrane component 2, and along with the operation of the ultrafiltration membrane component 2, a certain amount of pollutants are accumulated on the surface of the filter membrane, so that the operation flux of the filter membrane is continuously reduced, the filter membrane is subjected to air washing by air backwashing equipment, and the pollutants on the surface of the filter membrane are cleaned and discharged, so that the membrane operation flux of the ultrafiltration membrane component 2 is ensured.
On the basis of the embodiment, the ultrafiltration membrane component 2, the air backwashing equipment and the chemical cleaning equipment are all in signal connection with a control system.
Specifically, the ultrafiltration membrane component 2, the air backwashing equipment and the chemical cleaning equipment are all connected with a control system, the operation of the components or the equipment can be realized through the control system, the unmanned on duty can be realized, the operation management is convenient, and the operation cost is reduced.
Alternatively, the control system may be a PLC automatic control system.
In some embodiments, the air backwashing device comprises an air compressor 3, a cold dryer 4, a pneumatic control cabinet 5 and an air flowmeter 12, wherein the air compressor 3, the cold dryer 4, the pneumatic control cabinet 5 and the air flowmeter 12 are sequentially communicated, the air flowmeter 12 and the water inlet component are connected to the water inlet end of the ultrafiltration membrane component 2, the air compressor 3 is used for providing compressed air, the cold dryer 4 is used for removing moisture in the compressed air, and the pneumatic control cabinet 5 is used for air washing of the ultrafiltration membrane component 2.
Wherein, air compressor machine 3, cold drier 4, pneumatic control cabinet 5 and air flowmeter 12 intercommunication, air flowmeter 12 and the subassembly that intakes all are connected in the water inlet of milipore filter subassembly 2.
Specifically, the air compressor 3 provides compressed air with the pressure of more than 0.7MPa, and the water in the compressed air is removed through the cold dryer 4, so that no water vapor exists in a subsequent air pipeline, and the operation of a plurality of subsequent valves is prevented from being influenced. The compressed air pipe 27 is then connected to the pneumatic control cabinet 5 for depressurization and control. Firstly, compressed air is depressurized to 0.5MPa through a first-stage pressure reducing valve 21 to supply air for all pneumatic valves in the device; the compressed air is then depressurized to 0.19MPa through a secondary pressure relief valve 22 to provide a purge stream Cheng Gongqi for the ultrafiltration membrane module 2. The compressed air pipe 27 is provided with a backwash valve 17 which is connected with the water production pipe 24; a pressure release valve 19 is arranged between the compressed air pipe 27 and the water producing pipe 24 and is connected with an exhaust pipe 25; the compressed air pipe 27 is provided with an air flow meter 12 for measuring aeration air quantity of an air dispersing disc and a central pipe of the ultrafiltration membrane component 2; the compressed air pipe 27 is also provided with an air dispersing disc aeration valve 18 and is connected with an air dispersing disc air inlet at the bottom of the ultrafiltration membrane component 2; the central tube aeration valve 20 is arranged in parallel with the aeration valve 18 of the air dispersing disc and is connected with the central tube air inlet at the bottom of the ultrafiltration membrane component 2. The exhaust pipe 25 is connected to a drain pipe 26, and the drain water is collected and discharged as concentrated water.
Wherein, the air backwashing refers to pumping compressed air from one end of the ultrafiltration membrane component 2 without pollutants, discharging water in the membrane shell and carrying out partial pollutants; the aeration of the air dispersing disc is directed to the air dispersing disc positioned at the bottom of the membrane assembly, compressed air is introduced to vibrate the bottom of the membrane wire, so that pollutants accumulated on the membrane wire are vibrated off; the central tube aeration points to the central tube positioned at the central position, compressed air is introduced into the central tube, and the central position of the membrane wire is vibrated, so that pollutants at the central position of the membrane wire are vibrated down.
Optionally, the air flow meter 12 adopts a metal tube float flow meter, the aeration air quantity of the air dispersing disc is 85NL/min for each membrane module, and the aeration air quantity of the central tube is 170NL/min for each membrane module. The exhaust valve 15, the drain valve 16, the backwash valve 17, the aeration valve 18 of the air dispersing disc, the pressure release valve 19 and the aeration valve 20 of the central tube are all pneumatic ball valves, so that quick reaction can be realized.
In some embodiments, the chemical cleaning apparatus includes a cleaning agent tank 6 and a cleaning dosing pump 7, the cleaning agent tank 6 is used for storing chemical agents, the cleaning dosing pump 7 is communicated with the cleaning agent tank 6, and the cleaning dosing pump 7 is used for introducing the chemical agents in the cleaning agent tank 6 into a pipeline between the water inlet component and the ultrafiltration membrane component 2.
Specifically, the simple chemical cleaning system includes a cleaning agent tank 6 and a cleaning dosing pump 7. A purge tube 28 is connected to the inlet tube 23. The cleaning medicament barrel 6 is made of PE material, is corrosion-resistant and has a volume of 100L. The cleaning and dosing pump 7 adopts a mechanical diaphragm metering pump, and the dosing time is 5min.
In some embodiments, the water inlet assembly comprises a water inlet pump 1, a water inlet valve 13, a differential pressure transmitter 8 and a thermocouple 9, wherein the water inlet pump 1, the water inlet valve 13, the differential pressure transmitter 8 and the thermocouple 9 are sequentially communicated, and the differential pressure transmitter 8 is used for measuring the water pressure difference in the pipeline.
Specifically, the water inlet pump 1 adopts a stainless steel vertical multistage centrifugal pump, and the lift is more than 20 m. The inlet valve 13 adopts a pneumatic ball valve, so that quick reaction can be realized. The differential pressure transmitter 8 is respectively connected with the water inlet pipe 23 and the water producing pipe 24 and is used for detecting the differential pressure of the inlet water and the water producing water, reflecting the running state of the ultrafiltration membrane component 2, reaching the set differential pressure value and carrying out air washing and simple chemical cleaning. The thermocouple 9 adopts an inserted temperature transmitter with a measuring range of-20-100 ℃ and is used for detecting the water inlet temperature, avoiding exceeding the operating temperature range of the ultrafiltration membrane component 2 and ensuring the stable operation of the system.
On the basis of the embodiment, the water producing device further comprises a water producing assembly, wherein the water producing assembly is communicated with the ultrafiltration membrane assembly 2 and comprises a water producing valve 14, a water producing flowmeter 10 and a water producing turbidity meter 11, the water producing valve 14, the water producing flowmeter 10 and the water producing turbidity meter 11 are sequentially communicated, the water producing valve 14 is used for controlling whether water is discharged or not, the water producing flowmeter 10 is used for detecting water discharge, and the water producing turbidity meter 11 is used for detecting impurity content in discharged water.
Specifically, the water producing pipe 24 is provided with a water producing valve 14, a water producing flowmeter 10 and a water producing turbidity meter 11. The inlet valve 13 adopts a pneumatic ball valve, so that quick reaction can be realized. The water production flow meter 10 adopts an electromagnetic flowmeter to measure the water production flow. The range of the water production turbidity meter 11 is 0-20 NTU, and the precision is 0.001NTU.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The drinking water safety purifying device provided by the utility model is described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (6)
1. A drinking water safety purification device, comprising:
the ultrafiltration membrane component (2) is communicated with a water inlet component through a pipeline, the water inlet component is used for supplying water to the ultrafiltration membrane component (2), the ultrafiltration membrane component (2) is used for filtering the water which is introduced into the pipeline by the water inlet component so as to remove harmful impurities contained in the water, and the ultrafiltration membrane component (2) comprises a shell, a hollow fiber ultrafiltration membrane and a filter element;
the air backwashing device is communicated with the ultrafiltration membrane component (2) and is used for carrying out air washing on the ultrafiltration membrane component (2);
and the chemical cleaning equipment is arranged between the water inlet component and the ultrafiltration membrane component (2) and is used for chemically cleaning the ultrafiltration membrane component (2).
2. The drinking water safety purification device according to claim 1, characterized in that the ultrafiltration membrane assembly (2), the air backwash equipment and the chemical cleaning equipment are all in signal connection with a control system.
3. The drinking water safety purification device according to claim 1, wherein the air backwashing equipment comprises an air compressor (3), a cold dryer (4), a gas control cabinet (5) and an air flowmeter (12), wherein the air compressor (3), the cold dryer (4), the gas control cabinet (5) and the air flowmeter (12) are sequentially communicated, the air flowmeter (12) and the water inlet component are connected to the water inlet end of the ultrafiltration membrane component (2), the air compressor (3) is used for providing compressed air, the cold dryer (4) is used for removing moisture in the compressed air, and the gas control cabinet (5) is used for air washing of the ultrafiltration membrane component (2).
4. The drinking water safety purification device according to claim 1, wherein the chemical cleaning equipment comprises a cleaning medicament barrel (6) and a cleaning dosing pump (7), the cleaning medicament barrel (6) is used for storing chemical medicaments, the cleaning dosing pump (7) is communicated with the cleaning medicament barrel (6), and the cleaning dosing pump (7) is used for introducing the chemical medicaments in the cleaning medicament barrel (6) into the pipeline between the water inlet assembly and the ultrafiltration membrane assembly (2).
5. The drinking water safety purification device according to claim 1, wherein the water inlet assembly comprises a water inlet pump (1), a water inlet valve (13), a differential pressure transmitter (8) and a thermocouple (9), the water inlet pump (1), the water inlet valve (13), the differential pressure transmitter (8) and the thermocouple (9) are sequentially communicated, and the differential pressure transmitter (8) is used for measuring the water pressure difference in the pipeline.
6. The drinking water safety purification device according to any one of claims 1 to 5, further comprising a water producing assembly, wherein the water producing assembly is communicated with the ultrafiltration membrane assembly (2), the water producing assembly comprises a water producing valve (14), a water producing flowmeter (10) and a water producing turbidity meter (11), the water producing valve (14), the water producing flowmeter (10) and the water producing turbidity meter (11) are sequentially communicated, the water producing valve (14) is used for controlling whether water is discharged or not, the water producing flowmeter (10) is used for detecting water yield, and the water producing turbidity meter (11) is used for detecting impurity content in discharged water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322067801.7U CN220467663U (en) | 2023-08-03 | 2023-08-03 | Drinking water safety purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322067801.7U CN220467663U (en) | 2023-08-03 | 2023-08-03 | Drinking water safety purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220467663U true CN220467663U (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322067801.7U Active CN220467663U (en) | 2023-08-03 | 2023-08-03 | Drinking water safety purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220467663U (en) |
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2023
- 2023-08-03 CN CN202322067801.7U patent/CN220467663U/en active Active
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