CN202133578U - Constant pressure filter device for preprocessing of water sampling - Google Patents
Constant pressure filter device for preprocessing of water sampling Download PDFInfo
- Publication number
- CN202133578U CN202133578U CN201120247528U CN201120247528U CN202133578U CN 202133578 U CN202133578 U CN 202133578U CN 201120247528 U CN201120247528 U CN 201120247528U CN 201120247528 U CN201120247528 U CN 201120247528U CN 202133578 U CN202133578 U CN 202133578U
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- constant pressure
- water sample
- filter
- filter device
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Abstract
The utility model relates to a constant pressure filter device for preprocessing of water sampling, wherein a nitrogen steel bottle is connected with a funnel neck by a reduction valve and a hard silicone tube; a plane rough surface of the funnel neck matches with the plane rough surface of a funnel bracket neck and is clamped by a clamp; the rough surface inside a funnel bracket cup matches with a neck on the rough surface of a vacuum bottle; and a place with a plane groove of the funnel bracket cup is provided with a circular core flat plate in order to support a microfiltration membrane to filter a water sample. When the device is used for filtering, the water sample is poured into the funnel, the funnel is clamped, and a valve on the steel bottle is unscrewed to the needed pressure to filter the water sample at constant pressure. The constant pressure filter device provided by the utility model is simple in structure and convenient in operation. By adopting the 10 L nitrogen steel bottle as filter power, the constant pressure filter device has a power supply unnecessary, and is convenient to carry and applicable to field operation. Simultaneously, owing to capability of meeting the demand of large water sample on spot constant pressure filtering, the constant pressure filter device provides a feasible and reliable method for storing and preprocessing of water quality.
Description
Technical field
The utility model relates to a kind of constant voltage filter-pressing device that is applied to the water sample analysis pre-treatment.
Background technology
At present; Use the filtration unit of more general water sample analysis pre-treatment to have three kinds: a kind of is filter paper (film) natural filtration method; With placing a filter paper (film) on triangular funnel or the Bush's funnel, water sample is poured in the funnel, utilizes the gravity of water; Realize that solid or colloidal solid separate from water sample, thereby reach the purpose of filtration.This square law device is simple, and is easy and simple to handle, and applicability is wide, is to filter the most general method of using at present.But filtration time is longer, when particularly using 0.45 μ m and following miillpore filter, is difficult in the short time to accomplish the water sample filter operation, and time and effort consuming can not satisfy the filtration in-situ requirement of water sample sampling.
Second kind is the vacuum pump suction method, and this method principle is to put a miillpore filter on the sand core funnel, and water sample is poured in the funnel, with vacuum pump Dewar bottle is vacuumized, and water sample is filtered.This method is easy to operate, filters fast, but needs power supply, is applicable to the filtration of laboratory water sample analysis pre-treatment.For short perishable water sample of holding time, must (field work) accomplish filtration in the sampling location, this method can't solve.
The third syringe is taken out (pressure) filter method, before syringe, connects a filtering head (having commercial filtering head to buy 0.45 μ m or 0.25 μ m micropore at present), operates through (pressure) filter of taking out of taking out (pushing away) realization water sample.This square law device is simple, and is easy and simple to handle, is easy to carry, and is applicable to the filtration in-situ of water sample sampling.But syringe capacity generally less (capacious have 50ml and 100ml), also suitable with capacity do excessive; And for the process manual operation of taking out (pushing away) effort, the suitable pre-treatment of ponding appearance substantially, and take out (pressures) filter constant voltage that filtered in the journey realization not.
Summary of the invention
The purpose of the utility model is to above-mentioned present situation; Aim to provide a kind of simple in structure, easy and simple to handle, need not power supply, constant pressure filtration is easy to carry; Filter operation can be realized in the water sample sampling location, and the constant voltage filter-pressing device that is used for water sample sampling pre-treatment of big water by volume appearance can be handled.
The implementation of the utility model purpose does; A kind of constant voltage filter-pressing device that is applied to the water sample analysis pre-treatment, the outlet of nitrogen steel cylinder reduction valve connects a hard gel pipe, and the silicone tube other end connects the funnel eck of filter-pressing device; Funnel rim of a cup flat contact surface adopts hair side to handle; Funnel stand eck flat contact surface also adopts hair side to handle, and two hair sides match, and use clamp.The inboard funnel stand rim of a cup of hair side processing and the hair side eck of Dewar bottle of adopting matches, and it is dull and stereotyped that a circular core is put at funnel stand rim of a cup plane groove place.
During filtration, only need to pour water sample into funnel, clamp, the cylinder valve of outwarding winding can be realized the constant voltage press filtration of water sample to required pressure.
The utility model is simple in structure, easy and simple to handle, need not power supply, is easy to carry, and is applicable to field operation.And can be at the scene water sample be realized constant pressure filtration, help the preservation of water quality, and can handle big water by volume appearance, feasible reliable method is provided the preservation and the pre-treatment of water quality projects such as chlorophyll a, soluble phosphate.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
The utility model is detailed with reference to the accompanying drawings.
With reference to accompanying drawing; 10L nitrogen steel cylinder 1 and tensimeter 2 are connected through screw; The reduction valve outlet of tensimeter 2 connects the eck of the funnel 4 of filter-pressing device through a hard gel pipe 3; Funnel 4 rim of a cup glass hair sides and funnel stand 6 eck glass hair sides clamp through funnel folder 5 and are connected, and funnel stand 6 rims of a cup are inboard to be adopted the hair side processing and match with the outer wall eck hair side of Dewar bottle 8.The circular core 7 of a support miillpore filter is put at funnel stand 6 rim of a cup plane groove places, carries out the water sample filtration to support miillpore filter.
The funnel rim of a cup glass hair side of the utility model and funnel stand eck glass hair side clamp through the funnel folder and are connected, the funnel stand rim of a cup inwall of handling through hair side and the eck outer wall hair side driving fit mutually of Dewar bottle, and good seal can guarantee the pressure of filtration.
During the water sample pre-treatment, funnel folder 5 is opened, miillpore filter is placed on the circular core 7, and wetting with distilled water; Funnel 4 is inverted, and with hand with hard emulsion tube 3 folding killing by a pinch, pour water sample in the funnel required scale mark; The funnel stand 6 that takes off the band filter membrane tips upside down on funnel 4 rims of a cup, and two glass hair sides are coincide, and clamps with funnel folder 5.Funnel stand 6 is enclosed within on the bottleneck of Dewar bottle 8, and makes the eck outer wall hair side driving fit of funnel stand rim of a cup hair side inwall and Dewar bottle.Regulate the steel cylinder reduction valve to required pressure; Be generally 0.1MPa-0.3MPa (pressure is crossed conference and made hard gel pipe 3 joints towards taking off), and be constant voltage, this moment, solable matter and water sample were filtered into Dewar bottle; Insoluble substance is attached on the filter membrane, to reach the purpose of constant pressure filtration.
Claims (1)
1. constant voltage filter-pressing device that is applied to the water sample analysis pre-treatment; It is characterized in that the outlet of nitrogen steel cylinder reduction valve connects a hard gel pipe; The silicone tube other end connects the funnel eck of filter-pressing device, and funnel rim of a cup flat contact surface adopts hair side to handle, and funnel stand eck flat contact surface also adopts hair side to handle; Two hair sides match, and use clamp.The inboard funnel stand rim of a cup of hair side processing and the hair side eck of Dewar bottle of adopting matches, and it is dull and stereotyped that a circular core is put at funnel stand rim of a cup plane groove place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120247528U CN202133578U (en) | 2011-07-11 | 2011-07-11 | Constant pressure filter device for preprocessing of water sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120247528U CN202133578U (en) | 2011-07-11 | 2011-07-11 | Constant pressure filter device for preprocessing of water sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202133578U true CN202133578U (en) | 2012-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120247528U Expired - Fee Related CN202133578U (en) | 2011-07-11 | 2011-07-11 | Constant pressure filter device for preprocessing of water sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202133578U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721461A (en) * | 2012-10-16 | 2014-04-16 | 陈英 | Pressure boost filtering device |
| CN104548700A (en) * | 2014-12-15 | 2015-04-29 | 中国原子能科学研究院 | Ground glass flange filter |
| USD792971S1 (en) | 2016-05-05 | 2017-07-25 | Emd Millipore Corporation | Clamp |
| CN108245931A (en) * | 2016-12-29 | 2018-07-06 | 天津领世生物科技开发有限公司 | Mechanical column chromatography device |
| CN109060419A (en) * | 2018-06-22 | 2018-12-21 | 深圳市宇驰检测技术股份有限公司 | Water sample acquisition device and method |
| CN109283035A (en) * | 2018-11-29 | 2019-01-29 | 长沙凯天工研院环保服务有限公司 | A kind of pretreating device and method for ammonia nitrogen determination in water quality |
| US11433355B2 (en) | 2016-05-05 | 2022-09-06 | Emd Millipore Corporation | Filtration clamp with optional alignment collar and filtration system |
-
2011
- 2011-07-11 CN CN201120247528U patent/CN202133578U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721461A (en) * | 2012-10-16 | 2014-04-16 | 陈英 | Pressure boost filtering device |
| CN103721461B (en) * | 2012-10-16 | 2016-12-21 | 陈英 | Pressurizing filter device |
| CN104548700A (en) * | 2014-12-15 | 2015-04-29 | 中国原子能科学研究院 | Ground glass flange filter |
| USD792971S1 (en) | 2016-05-05 | 2017-07-25 | Emd Millipore Corporation | Clamp |
| US11433355B2 (en) | 2016-05-05 | 2022-09-06 | Emd Millipore Corporation | Filtration clamp with optional alignment collar and filtration system |
| CN108245931A (en) * | 2016-12-29 | 2018-07-06 | 天津领世生物科技开发有限公司 | Mechanical column chromatography device |
| CN109060419A (en) * | 2018-06-22 | 2018-12-21 | 深圳市宇驰检测技术股份有限公司 | Water sample acquisition device and method |
| CN109283035A (en) * | 2018-11-29 | 2019-01-29 | 长沙凯天工研院环保服务有限公司 | A kind of pretreating device and method for ammonia nitrogen determination in water quality |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20120711 |