CN208829335U - Automatic filtering system based on multiposition valve - Google Patents
Automatic filtering system based on multiposition valve Download PDFInfo
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- CN208829335U CN208829335U CN201821494375.8U CN201821494375U CN208829335U CN 208829335 U CN208829335 U CN 208829335U CN 201821494375 U CN201821494375 U CN 201821494375U CN 208829335 U CN208829335 U CN 208829335U
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Abstract
Automatic filtering system based on multiposition valve is related to water sample automatic fitration.Equipped with control module, power plant module, multidigit valve module, filter module and filtering water sample collection module；Filter module inlet end is equipped at least 2 sample feeding pipes, the different filters of every sample feeding pipe connection filter module；Filter module outlet end is separately connected the different valve positions at multiposition valve module inlet end, and the outlet end of multidigit valve module connects power plant module, and then connects filtering water sample collection module, and power plant module and multidigit valve module are connect with control module.Structure is simple, is only pumped with a multiposition valve and one, substantially reduces instrument cost, simplifies installation steps；It is convenient to operate, and according to multiposition valve switching time is arranged the case where water sample turbidity, unattended filtering water sample can be realized, dramatically reduce the intensity of hand labor；The filter or filter membrane for selecting commercialization are processed without additional customized；Both batch filtering water sample can have been obtained, it is also possible to obtain continuously filter water sample.
Description
Technical field
The utility model relates to water sample automatic fitrations, more particularly, to the automatic filtering system based on multiposition valve.
Background technique
The main problem that China's water environment faces at present is that the range of pollution is big, degree weight.Though China's gross amount of water resources is big,
But occupancy volume per person is few, and practical occupancy volume per person is only the 1/4 of world average level.In recent years, continuous with social economy
Development, mankind's activity increasingly sharpen, and a large amount of pollutants are discharged into water body, make China's surface water generally by different degrees of pollution.
To ensure water environment safety, needs to be monitored the pollutant in water body, be prevention and cure of pollution to reflect surface water quality situation
It provides and supports.Since the earth's surface water turbidity in China's most area especially the crowd is dense region is generally higher, especially in spring and summer
Opaque breen is often presented in the south in season, algal bloom in water, water colour.Therefore certain fingers of determination of the environment water sample
Mark, such as nutritive salt, solubilised state heavy metal need to be filtered water sample.
Traditional filter type is syringe filter disk and nuclepore membrane filter.Syringe filter disk is by disposable filtering
Head and syringe composition, the filtration device structure is simple, does not need complicated device, filtering volume of water sample that is easy to operate, but obtaining
It is limited, it is larger particularly with the biggish water sample difficulty in filtration of turbidity.Nuclepore membrane filter carries out water sample using principle of negative pressure
Filtering, the volume of water sample that may filter that is relatively large, but water sample biggish for turbidity or different samples, needs to frequently replace filter
Film.In addition, millipore filter needs to be likely to result in the friendship of different sample rooms using glasswares such as filter bowl, sand core, filtering flasks
Fork pollution.Above two filter type is manual filtering, needs artificial replacement filter or filter membrane, cumbersome, artificial labor
Fatigue resistance is big；And single water sample can only successively be filtered, it is unable to get continuous water sample, it cannot equipment with detecting automatically
Combination.
On the basis of traditional filtering mode, some means automatically and successively filtered have been developed at present.Document at present
In have reported some filters, it can be achieved that replacement filter or filter membrane are automatically to continuously acquire filtering water sample, but that there are structures is multiple
Miscellaneous, price is relatively higher, needs to be customized filter or filter membrane with a variety of electronic components, erroneous for installation processing etc. and ask
Topic, and large-scale field application is not carried out.
Summary of the invention
It is simple, easily operated, cheap that the purpose of the utility model is to provide structures, in combination with automatic sampling, online
The technologies such as filtering, entire filter process are not necessarily to human intervention, quickly, easy, can be used for environmental sample automatic fitration based on more
The automatic filtering system of position valve.
The utility model is equipped with control module, power plant module, multidigit valve module, filter module and filtering water sample and collects mould
Block；Filter module inlet end is equipped at least 2 sample feeding pipes, the different filters of every sample feeding pipe connection filter module；Filter
Module outlet end is separately connected the different valve positions at multiposition valve module inlet end, and the outlet end of multidigit valve module connects power plant module,
And then filtering water sample collection module is connected, power plant module and multidigit valve module are connect with control module.
The utility model can be used for the successively filtering of single sample, it can also be used to the continuous filtering of water sample.
The user program that Labview writes can be used in the control module, can according to the difference of water sample turbidity or sample,
Set different multiposition valve valve position switching times.
The device for water sample transport such as peristaltic pump, syringe pump can be used in the power plant module.
6 valves, 8 valves, 10 valves, 12 valves, 14 valves, 16 valves, 18 valves, 20 can be used in the multidigit valve module
The valve of position valve, 22 valves, 24 valves, 26 valves, 28 valves or more.
The filter module can select the filter of commercialization, can also select millipore filter filter and commercialization filter membrane
In conjunction with mode.
The filtering water sample collection module can select the differences such as polytetrafluoroethylene (PTFE), high borosilicate according to the different of test sample demand
The container of material different size.
The filter or filter membrane can select according to actual needs nylon, polyether sulfone, polytetrafluoroethylene (PTFE), glass fibre etc. no
Same material.
Compared with prior art, the utility model has the advantage that
(1) structure is simple, is only pumped with a multiposition valve and one, substantially reduces instrument cost, simplifies installation steps；
(2) it is convenient to operate, and according to multiposition valve switching time is arranged the case where water sample turbidity, unattended filtering can be realized
Water sample dramatically reduces the intensity of hand labor；
(3) filter or filter membrane for selecting commercialization, are processed without additional customized；
(4) batch filtering water sample can both have been obtained, it is also possible to obtain continuously filter water sample, join with Monitoring And Analysis of The Quality instrument
With using the automatic monitoring of water sample on site.
Detailed description of the invention
Fig. 1 is the structure composition and flow path schematic diagram of the utility model embodiment.
Fig. 2 is 2 ammonia nitrogen concentration distribution map of the utility model embodiment.In Fig. 2, A~E respectively represents the time.
Specific embodiment
Below by way of specific embodiment, the utility model will be further described.
Referring to Fig. 1, the utility model embodiment is equipped with 3,28 control module (being not drawn into Fig. 1), power plant module valves
Module 2, filter module 1 and filtering water sample collection module 4；1 arrival end of filter module be equipped at least 2 sample feeding pipes, every
The filter of sample feeding pipe connection filter module 1；1 outlet end of filter module is separately connected the different valve positions of 28 2 arrival ends of valve module,
The outlet end of 28 valve modules 2 connects power plant module 3, and then connects filtering water sample collection module 4, power plant module 3 and 28 valve
Module 2 is connect with control module.
The utility model is used for the successively filtering of single sample, it can also be used to the continuous filtering of water sample.
The user program that the control module uses Labview to write, according to the difference of water sample turbidity or sample, setting is not
28 same valve valve position switching times.
The power plant module 3 uses peristaltic pump.
The filter module 1 selects the filter of commercialization.
The filtering water sample collection module 4 selects polytetrafluoroethylcontainer containers according to the different of test sample demand.
The filter selects the unlike materials such as nylon, polyether sulfone, polytetrafluoroethylene (PTFE), glass fibre according to actual needs.
Specific embodiment is given below.
Embodiment 1
Xiamen University's Xiang peace school district lotus lake water is filtered with the utility model.
Referring to Fig. 1, the utility model embodiment selects the filter mould of millipore filter and 0.45 μm of composite fibre film composition
The filtering water sample collection of 1,28 valve module 2 of block, power plant module 3 (using peristaltic pump), 25mL polytetrafluoroethylene (PTFE) centrifuge tube composition
Module 4.The valve position switching time that 28 valve modules 2 are arranged is 60min/ times.5 Xiamen University's Xiangs are filtered altogether pacifies school district lotus lake
Water sample, the turbidity of water sample is 120~145NTU before filtering, and the turbidity of water sample is respectively less than 1NTU after filtering.
Embodiment 2
It is combined with the utility model and syringe pump ammonia nitrogen determination system, the ammonia nitrogen of east of a river reservoir is carried out 4 days by a definite date
Monitoring.Referring to embodiment 1, the valve position switching time that 28 valves are arranged is 240min/ times for filtration system accessory and flow path, during which without
Filter membrane need to manually be replaced.Filtration system is stored in the centrifugation of 25mL polytetrafluoroethylene (PTFE) after extracting the filtering of the water sample in the reservoir of the east of a river in real time
Guan Zhong, extra water sample are overflowed from top.The sample feeding pipe of syringe pump ammonia nitrogen system is put in centrifuge tube, extracts the water sample of real time filtering
For the measurement of ammonia nitrogen, as a result as shown in Figure 2.
The utility model can be according to the different set of water sample turbidity or sample different multiposition valve valve position switching time to obtain
It obtains batch filtering water sample or continuously filters water sample, meet different sample measurement demands.The utility model selects the filter of commercialization
Head or filter membrane are processed without additional customized；Structure is simple, and a multiposition valve and one has only been used to pump, greatly reduce instrument at
This, simplifies installation steps；Operate convenient, it can be achieved that unattended filtering water sample, dramatically reduces the intensity of hand labor.
Claims (3)
1. the automatic filtering system based on multiposition valve, it is characterised in that be equipped with control module, power plant module, multidigit valve module, filter
Head module and filtering water sample collection module；Filter module inlet end is equipped at least 2 sample feeding pipes, every sample feeding pipe connection filter
The different filters of head module；Filter module outlet end is separately connected the different valve positions at multiposition valve module inlet end, multidigit valve module
Outlet end connect power plant module, and then connect filtering water sample collection module, power plant module and multidigit valve module and control module
Connection.
2. as described in claim 1 based on the automatic filtering system of multiposition valve, it is characterised in that the power plant module is using wriggling
Pump or syringe pump.
3. as described in claim 1 based on the automatic filtering system of multiposition valve, it is characterised in that the multidigit valve module uses 6
Valve, 8 valves, 10 valves, 12 valves, 14 valves, 16 valves, 18 valves, 20 valves, 22 valves, 24 valves, 26 valves, 28
Valve, 30 valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821494375.8U CN208829335U (en) | 2018-09-13 | 2018-09-13 | Automatic filtering system based on multiposition valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821494375.8U CN208829335U (en) | 2018-09-13 | 2018-09-13 | Automatic filtering system based on multiposition valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208829335U true CN208829335U (en) | 2019-05-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821494375.8U Active CN208829335U (en) | 2018-09-13 | 2018-09-13 | Automatic filtering system based on multiposition valve |
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| Country | Link |
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| CN (1) | CN208829335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112791595A (en) * | 2021-01-25 | 2021-05-14 | 杭州绿洁环境科技股份有限公司 | Automatic suction filtration instrument for water quality detection |
-
2018
- 2018-09-13 CN CN201821494375.8U patent/CN208829335U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112791595A (en) * | 2021-01-25 | 2021-05-14 | 杭州绿洁环境科技股份有限公司 | Automatic suction filtration instrument for water quality detection |
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