CN102553325B - Underwater in-situ filter device - Google Patents
Underwater in-situ filter device Download PDFInfo
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- CN102553325B CN102553325B CN201110429776.1A CN201110429776A CN102553325B CN 102553325 B CN102553325 B CN 102553325B CN 201110429776 A CN201110429776 A CN 201110429776A CN 102553325 B CN102553325 B CN 102553325B
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- water inlet
- inlet pipe
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Abstract
The invention discloses an underwater in-situ filter device which has a simple structure and is convenient to disassemble. The underwater in-situ filter device comprises a water inlet pipe, a watertight shell sleeved outside the water inlet pipe and a water pipe joint which is sleeved on a water outlet of the water inlet pipe and is connected with a water pump, wherein an outer filter screen and an outer filter screen pressing plate which is connected to the watertight shell to be pressed against the outer filter screen are arranged at a water inlet of the water inlet pipe; an inner filter screen is arranged between the water outlet of the water inlet pipe and the water pipe joint; and the water pipe joint is pressed against the inner filter screen tightly by an inner filter screen pressing plate fixed to the watertight shell. According to the underwater in-situ filter device, a water sample is filtered twice, so that the pollution of air bubbles, granules and the like in the water sample to measuring instruments can be avoided effectively, and the measuring accuracy can be improved. In addition, components of the underwater in-situ filter device are easy to connect and disassemble and convenient to clean.
Description
Technical field
The present invention relates to a kind of filter, be specifically related to a kind of for the filter of biochemical key element, solubility colored organism original position or on-line monitoring under water.
Background technology
At present, for the detection of the biochemical key element of water body and solubility colored organism etc. and the way that analysis adopts on spot sampling, ship conventionally or lab analysis on the bank combines, the shortcoming of this method is: institute's sample thief is very easily polluted in collection, storage and preprocessing process, from sample collection, to last detection analysis, need a period of time, may inevitably there is some chemical reaction and cause the change of chemical property in sample, and further affect the accuracy of sample detection during this period.
On-the-spot in-situ method can shorten sample and detect from sampling the time period of analyzing, make sample be able to be detected in time, the character change of not only having avoided sample to occur because of matter of time, also greatly improved and detected the operating efficiency of analyzing, for the research of deep-sea, this advantage is just more remarkable especially.In recent years, the attention to marine ecosystems research along with marine environment scholar and ecologist, scientific research personnel progressively shifts the measurement of the biochemical key element in ocean from laboratory to on-the-spot original position, sample introduction and mixed processes all in situ measurement process are all automatically to complete the in the situation that of unmanned participation, all samples are entering before automatic sample handling system carries out sample introduction and mix colour developing, all need it to carry out on-line filtration, filtering wherein may be stopped up and the particle of contamination meter etc., therefore, in sample introduction process, the on-line filtration of sample just seems most important in whole underwater in-situ or on-site on-line measurement process.
Chinese patent ZL 201010172037.4 discloses a kind of underwater in-situ on-line filtration device, and this device comprises that the drum strainer, intake pump, electronic valve, the aperture that connect are successively less than bag type filter group and the flow sensor of drum strainer.First water sample enters into bag type filter group by corrosion-resistant flexible pipe through interface after being pumped into by intake pump after drum strainer department level filters, and to do further filtration, final water sample enters into detection analytical equipment under the control of flow sensor.Although the pollution problem that this invention has avoided sample to cause in collection, storage and preprocessing process, this invention filter apparatus configuration is complicated, not quick detachable, is difficult to clean.
Summary of the invention
The object of this invention is to provide a kind of underwater in-situ filter device simple in structure, easy-to-dismount.
In order to solve the problems of the technologies described above, the present invention by the following technical solutions:
, comprise water inlet pipe, water pipe head and watertight case; Water inlet pipe one end is water inlet pipe water inlet, and the other end is water inlet pipe delivery port, and water pipe head is socketed on water inlet pipe delivery port, and watertight case is socketed on water inlet pipe water inlet; At water inlet pipe water inlet, be provided with outer screen pack and be fixed on watertight case in order to prop up the outer screen pack pressing plate of outer screen pack, between water inlet pipe delivery port and water pipe head, be provided with filtering net, water pipe head is pushed filtering net by the filtering net pressing plate being fixed on watertight case.
Preferably, water pipe head is stepped column structure, comprise the connector being connected with water pump and be socketed in the joint water inlet on water inlet pipe delivery port, connector and joint water inlet junction are provided with connector tread, and described filtering net is compressed between water inlet pipe delivery port and connector tread.Water pipe head can be also other similar structures, as long as can push filtering net together with water inlet pipe delivery port.
Preferably, filtering net pressing plate is cylindric joint, its lower end periphery is radially outward provided with the annular lip being fixedly connected with watertight case, the upper end periphery of filtering net pressing plate is radially inwardly provided with the annular lip that can be squeezed on connector tread, the upper end bore of filtering net pressing plate is relatively little, being advisable by the connector of water pipe head.Filtering net pressing plate is also not limited to said structure, as long as can accomplish that one end is connected with watertight case, one end acts on water pipe head and makes water pipe head push filtering net.
In order further to reduce the foreign material in water sample, make to filter more thorough, the diameter of water inlet pipe water inlet is more than or equal to the diameter of water inlet pipe delivery port, and the diameter of outer screen pack is greater than etc. or in the diameter of filtering net, the diameter proportion of water inlet pipe water inlet and water inlet pipe delivery port is preferably 2:1; Distance between water inlet pipe water inlet and water inlet pipe delivery port is preferably the size of water inlet pipe water inlet diameter; More preferably, the aperture of outer screen pack is more than or equal to the aperture of filtering net, can be according to different water quality, select different outer screen packs and the aperture of filtering net, when measured for coastal waters nutrient salt in water, outer filter mesh grade 0.1mm, 0.02mm is selected in the aperture of filtering net.
In order to strengthen the sealing of underwater in-situ filter device, avoid the sample that collects contaminated, between water inlet pipe water inlet and outer screen pack, be provided with outer screen pack packing ring, between water inlet pipe delivery port and filtering net, be provided with filtering net packing ring.In order further to strengthen this sealing effectiveness, water inlet pipe water inlet and water inlet pipe delivery port outer rim are respectively provided with one or more cannelures, in cannelure, be provided with sealing ring, the quantity of sealing ring is without any restriction, generally, on water inlet pipe water inlet and water inlet pipe delivery port, be respectively provided with two sealing rings, also can establish any number of sealing rings.
Preferably, connector is provided with barb-shaped screw thread, so that be connected with intake pump or meticulousr filter watertight.
Filtering net pressing plate and outer screen pack pressing plate are removably fixed on watertight case.In order to strengthen the detachability of outer screen pack and filtering net, it is easily cleaned, outer screen pack pressing plate is preferably adopted with filtering net pressing plate the mode being screwed and is fixedly connected with watertight case, in addition, also can adopt other modes, as connect and fix.Disassemble outer screen pack pressing plate and just can take out easily outer screen pack, disassemble filtering net pressing plate and just can take out easily filtering net.
Water inlet pipe is stepped column structure.In order to reduce the resistance of water inlet pipe inwall to water, water inlet pipe inner inlet passage is roughly frustum of a cone shape sliding surface structure.
For different water quality, according to the chemical property that is sampled product, can change the making material of underwater in-situ filter device, such as to water quality such as seawater, industrial wastewaters, outer screen pack and filtering net all adopt the titanium powder sintering filter with features such as hardness are high, corrosion-resistant.In addition, water inlet pipe of the present invention and water pipe head size also can change according to filtering requirements of one's work, and for example the axial length of water inlet pipe is 48mm, and the axial length of water pipe head is 45mm.
The present invention in use, the connector of water pipe head is connected with pump entrance, outer screen pack directly contacts with on-the-spot water body, during pump working, by water sampling, first passed through the filtration of outer screen pack, larger aperture particle and bubble in water body are filtered out, then again filter when the filtering net, finally by the water sample of twice filtration, enter water pump.The parameter of water pump is according to being arranged by water sampling, and for example, while measuring for coastal waters nutrient salt in water, the sample introduction Speed Setting of water pump is within the mL/s scope of 0.25mL/s ~ 0.75.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts inside and outside screen pack twofold filter device, can effectively avoid the pollution to measuring instrument such as bubble, particle in water sample, improve certainty of measurement, guarantee feasibility and the reliability of original position or on-site on-line measurement, can effectively avoid being vulnerable in water sample preprocessing process the shortcomings such as contamination simultaneously.The main inner screen pack pressing plate of each parts of the present invention, outer screen pack pressing plate are connected with watertight case, as long as remove the connection between this three, its internal part just can disassemble easily, is convenient to inside and outside screen pack to clean.The present invention not only can filter for the in situ sampling of river, lake and offshore or far-reaching seawater body mesophytization key element and coloring matter etc., but also can, in the environmental monitoring systems such as industrial wastewater, there is wide application market and good application prospect.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention;
Fig. 2 is water pipe head cross-sectional view of the present invention.
The specific embodiment
embodiment 1
As shown in Figure 1 and Figure 2, underwater in-situ filter device of the present invention comprises water inlet pipe 7, be socketed in the watertight case 9 outside water inlet pipe 7 and be socketed on the water pipe head 8 on water inlet pipe 7 tops, water inlet pipe 7 integral body are stepped column structure, one end that its external diameter is large is water inlet pipe water inlet 71, one end that external diameter is little is water inlet pipe delivery port 72, in order to reduce the resistance of water inlet pipe 7 inwalls to water, water inlet pipe 7 inner inlet passages are roughly frustum of a cone shape sliding surface structure.The stepped column structure that water pipe head 8 is hollow, one end that its external diameter is little is connector 81, one end that external diameter is large is joint water inlet 82, connector 81 is provided with connector tread 83 with joint water inlet 82 junctions, connector 81 is provided with barb type screw thread, joint water inlet 82 is socketed on water inlet pipe delivery port 72, and 71 of water inlet pipe water inlets are socketed in watertight case 9.
In water inlet pipe water inlet 71 ends, be provided with outer screen pack 1, in order to prevent that outer screen pack 1 from coming off, the axial outside of screen pack 1 is provided with the outer screen pack pressing plate 2 being fixedly connected with watertight case 9 outside, under the extruding of screen pack pressing plate 2 outside of outer screen pack 1 with water inlet pipe 7 water inlet close contacts.At water inlet pipe delivery port, 72 places are provided with filtering net 4, filtering net 4 is compressed between water inlet pipe delivery port 72 and joint tread 83, in order to prevent water pipe head 8 and filtering net 4 landings, in the outside of water pipe head 8, be provided with filtering net pressing plate 5, filtering net pressing plate 5 is cylindric joint, its lower end periphery is radially outward provided with the annular lip being fixedly connected with watertight case 9, the upper end periphery of filtering net pressing plate 5 is radially inwardly provided with the annular lip that can be squeezed on connector tread 83, the upper end bore of filtering net pressing plate 5 is relatively little, can be by the connector 81 of water pipe head 8.Outer screen pack pressing plate 2 is adopted with filtering net pressing plate 5 mode being screwed and is fixedly connected with watertight case 9.
Between water inlet pipe water inlet 71 and outer screen pack 1, be provided with outer screen pack packing ring 3, between water inlet pipe delivery port 72 and filtering net 4, be provided with filtering net packing ring 6.At water inlet pipe water inlet 71 and water inlet pipe delivery port 72 outer rims, be also respectively provided with two cannelures, in cannelure, be equipped with sealing ring 10.
The diameter of outer screen pack 1 is 36mm, and pore size filter is 100um, and the diameter of filtering net 4 is 20mm, and pore size filter is 20um.The axial length of water inlet pipe 7 is 48mm, and the axial length of water pipe head 8 is 45mm.Outer screen pack 1 and filtering net 4 all adopt titanium powder sintering filter.
The present invention in use, the connector 81 of water pipe head 8 is connected with pump entrance, outer screen pack 1 directly contacts with on-the-spot water body, during pump working, by water sampling, first passed through the filtration of outer screen pack 1, larger aperture particle and bubble in water body are filtered out, then again filter when the filtering net 4, finally by the water sample of twice filtration, enter water pump.While measuring for coastal waters nutrient salt in water, the sample introduction speed of water pump is within the mL/s scope of 0.25mL/s ~ 0.75.
Claims (8)
1. a underwater in-situ filter device, is characterized in that comprising water inlet pipe (7), water pipe head (8) and watertight case (9); Water inlet pipe (7) one end is water inlet pipe water inlet (71), and the other end is water inlet pipe delivery port (72), and it is upper that water pipe head (8) is socketed in water inlet pipe delivery port (72), and watertight case (9) is socketed on water inlet pipe water inlet (71); At water inlet pipe water inlet (71), be provided with outer screen pack (1) and be fixed on watertight case (9) upper in order to prop up the outer screen pack pressing plate (2) of outer screen pack (1), between water inlet pipe delivery port (72) and water pipe head (8), be provided with filtering net (4), water pipe head (8) is pushed filtering net (4) by the filtering net pressing plate (5) being fixed on watertight case (9);
Water pipe head (8) is stepped column structure, comprise the connector (81) being connected with water pump and be socketed in the joint water inlet (82) on water inlet pipe delivery port (72), connector (81) is provided with connector tread (83) with joint water inlet (82) junction, and described filtering net (4) is compressed between water inlet pipe delivery port (72) and connector tread (83);
Filtering net pressing plate (5) is cylindric joint, and its lower end periphery is radially outward provided with the annular lip being fixedly connected with watertight case (9), and its upper end periphery is radially inwardly provided with the annular lip that can be squeezed on connector tread (83).
2. underwater in-situ filter device according to claim 1, is characterized in that the diameter of water inlet pipe water inlet (71) is more than or equal to the diameter of water inlet pipe delivery port (72), and the diameter of outer screen pack (1) is more than or equal to the diameter of filtering net (4).
3. underwater in-situ filter device according to claim 1, is characterized in that the aperture of outer screen pack (1) is more than or equal to the aperture of filtering net (4).
4. underwater in-situ filter device according to claim 1, it is characterized in that being provided with outer screen pack packing ring (3) between water inlet pipe water inlet (71) and outer screen pack (1), between water inlet pipe delivery port (72) and filtering net (4), be provided with filtering net packing ring (6).
5. underwater in-situ filter device according to claim 1, is characterized in that water inlet pipe water inlet (71) and water inlet pipe delivery port (72) outer rim are respectively provided with one or more cannelures, are provided with sealing ring (10) in cannelure.
6. underwater in-situ filter device according to claim 1, is characterized in that connector (81) is provided with barb-shaped screw thread, and water inlet pipe (7) is stepped column structure.
7. underwater in-situ filter device according to claim 1, is characterized in that filtering net pressing plate (5) and outer screen pack pressing plate (2) are removably fixed on watertight case (9).
8. underwater in-situ filter device according to claim 1, while it is characterized in that measuring for coastal waters nutrient salt in water, the aperture of outer screen pack is 0.1mm, the aperture of filtering net is 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429776.1A CN102553325B (en) | 2011-12-20 | 2011-12-20 | Underwater in-situ filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429776.1A CN102553325B (en) | 2011-12-20 | 2011-12-20 | Underwater in-situ filter device |
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| Publication Number | Publication Date |
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| CN102553325A CN102553325A (en) | 2012-07-11 |
| CN102553325B true CN102553325B (en) | 2014-02-05 |
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| CN201110429776.1A Expired - Fee Related CN102553325B (en) | 2011-12-20 | 2011-12-20 | Underwater in-situ filter device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316522B (en) * | 2013-06-21 | 2015-06-03 | 中国科学院南海海洋研究所 | Filter applied to in-situ sample-injection type seawater analytical instrument |
| CN106139691B (en) * | 2016-07-18 | 2018-01-23 | 国家海洋局第二海洋研究所 | A kind of online pre-filtrating equipment of the nutrients in sea water of anti-halobios adhersion |
| CN109030842B (en) * | 2018-08-09 | 2019-10-08 | 中国科学院南海海洋研究所 | A kind of nutrients in sea water in-situ study device |
| CN113367112A (en) * | 2021-06-10 | 2021-09-10 | 邢台晨星农业科技有限公司 | High-horsepower tractor with spraying function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5064542A (en) * | 1990-03-08 | 1991-11-12 | Technicon Instruments Corporation | Method for filtering a whole blood sample using an in-line fluid filter for an automated analyzer |
| CN2778363Y (en) * | 2005-04-26 | 2006-05-10 | 国家海洋技术中心 | Underwater in-situ filtering device |
| CN201844082U (en) * | 2010-08-27 | 2011-05-25 | 李玉喜 | Automatic drainage valve |
-
2011
- 2011-12-20 CN CN201110429776.1A patent/CN102553325B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5064542A (en) * | 1990-03-08 | 1991-11-12 | Technicon Instruments Corporation | Method for filtering a whole blood sample using an in-line fluid filter for an automated analyzer |
| CN2778363Y (en) * | 2005-04-26 | 2006-05-10 | 国家海洋技术中心 | Underwater in-situ filtering device |
| CN201844082U (en) * | 2010-08-27 | 2011-05-25 | 李玉喜 | Automatic drainage valve |
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| CN102553325A (en) | 2012-07-11 |
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