CN201201905Y - Water sample automatic pretreatment apparatus - Google Patents
Water sample automatic pretreatment apparatus Download PDFInfo
- Publication number
- CN201201905Y CN201201905Y CNU2008200569934U CN200820056993U CN201201905Y CN 201201905 Y CN201201905 Y CN 201201905Y CN U2008200569934 U CNU2008200569934 U CN U2008200569934U CN 200820056993 U CN200820056993 U CN 200820056993U CN 201201905 Y CN201201905 Y CN 201201905Y
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- sample
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- sedimentation basin
- water
- sample water
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Abstract
The utility model relates to a water sample automatic pretreatment device, which is characterized by comprising a small sedimentation tank, a sedimentation tank sprayer, a sample water cup sprayer, a filter pin, a plunger pump, a pneumatic three-way valve, a lubricator, an air filter, a pressure meter, a sample water cup and a sample water homogenizer. The utility model has the advantages that the water sample automatic pretreatment device is reduced to 1/10 volume of the prior device and can be integrated in a cabinet or made into a pretreatment plate to be suspended at the back of an instrument, to make distribution compact and save space. The plunger pump only utilizes system gas source and has low energy consumption. The water sample automatic pretreatment device utilizes high pressure gas to process backflushing and combines sedimentation tank spraying to improve washing effect and avoid blockage in continuous operation. The water sample automatic pretreatment device can continuously operate for 4 to 6 months without maintenance, has multifunction and has automatic emptying and washing functions.
Description
Technical field
The utility model relates to the automatic pretreatment unit of a kind of water sample, is used for the pre-treatment of automatic water quality monitoring instrumental analysis water sample, and water sample automatic pre-treatment in laboratory belongs to water-treatment technology field.
Background technology
Original pretreatment unit is divided into the second-stage treatment mode from principle, the first step is treated to large-scale sedimentation basin, the second stage is treated to the stainless steel filtering net, this device enters sedimentation basin by the uninterrupted water sampling of sampling pump, post precipitation is got supernatant liquor in the mode of overflow, supernatant liquor passes through Stainless Steel Filter by the transferpump positive delivery, filtering net is the round shape grid, strainer is divided into two portions, and aqueous sample stream is crossed filtering net, and the part water sample enters the outside of filtering net by pressure measurement, it is the other side of strainer, reach filtering purpose, the water sample after the filtration is stored in the water sample cup by the outlet of strainer, and other water samples are then through directly draining behind the cylinder filtering net.
The shortcoming of its existence has:
1. equipment volume is huge, arrange to disperse, and only large-scale sedimentation basin just needs a cubicle, and also needs the longer pipe road to be connected between sedimentation basin and the strainer;
2. because the water yield of carrying is bigger, adopt the power of pump also bigger, thereby the energy consumption height;
3. find in the use that the silt particulate passes through easily when adopting the big strainer of mesh aperture, pretreatment quality was difficult to guarantee when the water sample turbidity was big, often influenced the instrument operation.And backwash effect is poor when using the small-bore strainer instead, is easy to cause mesh to stop up, and the water yield reduces, the pre-treatment insufficient water.Also need very frequent manual maintenance to clean even strengthen the back flushing frequency, even need salt acid soak strainer.
4. because equipment disperses, and failsafe link is many, maintenance intervals is short, and maintenance is big.
5. function is simple, emptying and cleaning automatically automatically.
6. rely on the control of total system, can not be as the operation automatically separately of an independent sector.
Summary of the invention
The purpose of this utility model provides a kind of raising serviceability, both can incorporate the water quality online auto monitoring, but the automatic pretreatment unit of the water sample of independent operating again.
For realizing above purpose, the technical solution of the utility model provides the automatic pretreatment unit of a kind of water sample, it is characterized in that, comprise the small-sized sedimentation basin body that is installed on first mounting plate, one side is provided with the sedimentation basin spray thrower in small-sized sedimentation basin body upper end, and be connected with sedimentation basin spray valve on being installed in second mounting plate by pipeline, the sedimentation basin spray valve is connected with sample water tumbler spray valve by pipeline, and with the pressurization running water inlet be connected, sample water tumbler spray valve is connected with the sample water tumbler spray thrower of sample water cup upper end on being installed in the 3rd mounting plate by pipeline, on the sedimentation basin under liquid level switch and the sedimentation basin liquid level switch be located at small-sized sedimentation basin body one side, the sedimentation basin bleed valve is located at small-sized sedimentation basin body lower end, opposite side was provided with filter core in small-sized sedimentation basin body upper end, crossed filter core and was connected with compressed air inlet with the sedimentation basin back-flushing valve by pipeline; Simultaneously by pipeline and threeway respectively with the Pneumatic three-way valve that is installed on second mounting plate, the ram pump lower end is connected with the water sample nozzle of sample water cup lower end, one of Pneumatic three-way valve lower end is crossed and second magnetic valve all, pipeline is connected with the ram pump upper end with the 3rd magnetic valve, and be connected with air filter and tensimeter by lubricator, one pipe connection of crossing all between first magnetic valve and second magnetic valve and the 3rd magnetic valve of Pneumatic three-way valve upper end, the ram pump middle-end is by the pipe connection between slowly-releasing valve and the 4th magnetic valve and second magnetic valve and the 3rd magnetic valve; Sample water cup inside is provided with the water sample homogenizer, and the top is provided with sample water tumbler liquid level switch, and sample water cup upper end is inserted discharge tube with the sample water tumbler bleed valve that install sample water cup lower end by threeway.
The utility model is jumped out and is utilized water pressure to realize filtering conventional thought by filtering net, utilizes the ram pump suction to produce negative pressure, passes through filter core for water sample provides power, thereby reaches effects of pretreatment.
The utility model has the advantages that:
1. volume-diminished can be integrated in the rack to having only below 1/10th of existing equipment, even can make pre-processed board and hang over instrument behind, arrange quite compact, conserve space greatly;
2. abolish original transferpump, ram pump of the present utility model only need utilize system's source of the gas, and energy consumption is very low;
3. owing to adopt the reverse purge of high pressure gas, in conjunction with the sedimentation basin spray, cleaning performance is remarkable, continuously the no latch up phenomenon of operation;
4. eliminate the original equipment failsafe link, need not manual maintenance substantially, continuously-running 4-6 month non-maintaining maintenance;
5. multiple functional, can realize automatic emptying and cleaning automatically;
6. can incorporate automatic water quality monitoring system into, also can be used as the operation automatically separately of a self-contained system.
Description of drawings
Fig. 1 is the automatic pretreatment unit structural representation of a kind of water sample.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, be the automatic pretreatment unit structural representation of a kind of water sample, the small-sized sedimentation basin of liquid level switch 4 and bleed valve 5 composition first parts under liquid level switch 3, the sedimentation basin on small-sized sedimentation basin body 1, the sedimentation basin.
Small-sized sedimentation basin body 1 is fastened on first mounting plate 25 by screw, small-sized sedimentation basin body 1 is by the stainless steel plate convolution rectangular parallelepiped that is welded, the lower end is V-shaped, connect delivery pipe, by pneumatic bleed valve control draining, there is stainless steel cover the top, be fixed on the small-sized sedimentation basin body 1 by four butterfly-shaped screws, stainless steel cover is provided with two holes, the screw stationary installation is all arranged around the hole, hole is used to pass and fixing sedimentation basin spray thrower 2, another hole is used to pass and fixed filter core 9, sedimentation basin about 1/5 place, upper end and about 1/5 place, lower end are provided with boring respectively, be respectively applied for liquid level switch 4 under the liquid level switch 3 and sedimentation basin is installed on the sedimentation basin, the level condition of liquid level switch 4 monitoring sedimentation basins under liquid level switch 3 and the sedimentation basin on the sedimentation basin, bleed valve 5 connects discharge tubes, valve body is a normally off, opens when device is in the discharging and the state of cleaning.
Pneumatic three-way valve 6, first magnetic valve 7, second magnetic valve 8, mistake filter core 9, ram pump 10, the 3rd magnetic valve 11, the 4th magnetic valve 12, cushion valve 13 and water sample nozzle 14 are formed second section suction type filtering devices, and the function of suction type filtering device is to filter water sample.
Crossing filter core 9 is connected with the Pneumatic three-way valve 6 that is installed in second mounting plate, 26 middle parts, ram pump 10 lower ends and the water sample nozzle 14 of sample water cup 15 lower ends respectively with threeway by pipeline, one of Pneumatic three-way valve 6 lower ends are crossed all and are connected with ram pump 10 upper ends with second magnetic valve 8, pipeline and the 3rd magnetic valve 11, one pipe connection of crossing all between first magnetic valve 7 and second magnetic valve 8 and the 3rd magnetic valve 11 of Pneumatic three-way valve 6 upper ends, ram pump 10 middle-ends are by the pipe connection between slowly-releasing valve 13 and the 4th magnetic valve 12 and second magnetic valve 8 and the 3rd magnetic valve 11.
First magnetic valve 7 and second magnetic valve 8 are controlled the pressurized air of both direction respectively, cooperation by its switching realizes that the two-way of Pneumatic three-way valve 6 switches, the 3rd magnetic valve 11 and the 4th magnetic valve 12 are also controlled the pressurized air of both direction respectively, realize the uplink and downlink of air piston pump 10 by the cooperation of its switching, for avoiding ram pump 10 up too fast, vacuum appears during suction, between the 3rd magnetic valve 11 and ram pump 10 cushion valve 13 is set, water sample is squeezed into sample water tumbler 15 by ram pump 10 by water sample nozzle 14 by crossing filter core 9.
Ram pump 10 is fixed on second mounting plate, 26 left sides by screw, ram pump 10 is divided into two parts, the upper end portion is a cylinder, be the aerodynamic force part, by piston cylinder is divided into two parts, two parts respectively are connected with compressed air source, and open by corresponding solenoid valve control respectively, when the 4th magnetic valve 12 is opened, pressurized air enters the cylinder lower section, cylinder top gas is discharged, make upstroke, between the 4th magnetic valve 12 and the ram pump 10 cushion valve 13 is installed, the compressed-air actuated pressure of slowly-releasing, make piston can not cause aspiration vacuum too soon because of rising, influence suction effect, piston rises to after the high position, and the 3rd magnetic valve 11 is opened, pressurized air enters cylinder top, the pressurized gas of cylinder lower section is discharged simultaneously, makes descent of piston, and the lower end of ram pump 10 is the water sample pumping unit, movable part is a piston, link together by fixed link with the piston in the cylinder, when the upstroke of cylinder, drive the upstroke of water sample pumping unit, produce negative pressure, reach suction water sample purpose, when the descent of piston of cylinder, drive the descent of piston of water sample pumping unit, produce malleation, reach the purpose that water sample is transported to 15 li of sample water tumblers.
Pneumatic three-way valve 6 is by two-way pressurized gas driven, three road water pipes that the connection of valve body switching part is come out from ram pump 10, mistake filter core 9 and sample water tumbler 15, by alternately switching, realize passing through filter core 9 from small-sized sedimentation basin body 1 water intaking, be transported to the process of sample water tumbler 15 again.
Sample water cup 15, sample water tumbler liquid level switch 16, water sample homogenizer 18 and bleed valve 19 are formed third part sample water tumbler, the function of sample water tumbler is to store water sample for Meter Test, sample water cup 15 volumes have 2 liters approximately, sample water tumbler liquid level switch 16 is installed in sample water cup 15 top covers, switch lever stretches into sample water cup 15 bottoms, and monitoring sample water tumbler is level condition up and down.Water sample homogenizer 18 motors are installed in sample water cup 15 top covers, agitating vane stretches into sample water cup 15 bottoms, water sample is played homogenizing, bleed valve 19 is positioned at sample water cup 15 bottoms, the sample water tumbler bleed valve 19 that install sample water cup 15 upper ends and sample water cup 15 lower ends inserts discharge tube by threeway, generally be in normally off, when draining and cleaning, be in opened condition.
Sedimentation basin spray thrower 2, sample water tumbler spray thrower 17, sedimentation basin spray valve 20 and sample water tumbler spray valve 21 are formed the 4th part washing unit, the function of washing unit is the main space of device is cleaned, sedimentation basin spray thrower 2 is installed in about 1/3 place, sedimentation basin top, sample water tumbler spray thrower 17 is installed in sample water cup 15 top cover places, and the position is parallel with water sample homogenizer 18.
Sedimentation basin spray thrower 2 is connected with sedimentation basin spray valve 20 on being installed in second mounting plate 26 by pipeline, sedimentation basin spray valve 20 is connected with sample water tumbler spray valve 21 by pipeline, and be connected with pressurization tap water 28 imports, sample water tumbler spray valve 21 is connected with the sample water tumbler spray thrower 17 of sample water cup 15 upper ends on being installed in the 3rd mounting plate 27 by pipeline.
Sedimentation basin spray valve 20 and sample water tumbler spray valve 21 all are in normally off generally speaking, open when device cleans, and utilize the pressure of tap water own that sedimentation basin body 1 and sample water cup 15 are cleaned, if hydraulic pressure is not enough, and can external running-water booster pump.
Crossing filter core 9 is connected with compressed air inlet 29 with sedimentation basin back-flushing valve 22 by pipeline, the effect of sedimentation basin back-flushing valve 22 is to utilize high pressure gas outwards oppositely to blow from secondary filter core 9 inside, to blow off attached to the fine particle on secondary filter core 9 surfaces, process general and the sedimentation basin spray Cleaning for High Capacity is carried out synchronously.
Air filter and tensimeter 23 and lubricator 24 are formed the 5th part purifying air and lubrication fittings, the function of purifying air and lubrication fittings is to purify the pressurized air of access to plant, and bring lubricating oil into frequent movable part such as ram pump 10 pistons, the operation life of intensifier by jet.
Pneumatic three-way valve 6 is connected with air filter and tensimeter 23 by lubricator 24, air filter and tensimeter 23 are fixed on the compressed-air actuated ingress, below of second mounting plate 26, effect is that pressurized air is played fixed action, simultaneously can regulate compressed-air actuated pressure by adjusting knob, lubricator 24 is installed in the back of air filter and tensimeter 23, enter lubricator 24 behind pressurized air process air filter and the tensimeter 23, the cylinder portion that adopts the effusive principle to bring lubricating oil into ram pump 10 reduces the wearing and tearing of cylinder piston ring and cylinder wall.Pressurized air earlier through air filter and tensimeter 23, passes through lubricator 24 by the stainless steel inlet pipe then, becomes the power resources of ram pump 10 and T-valve 6 again by the control of magnetic valve.
In the course of the work, water sample enters small-sized sedimentation basin body 1, after leaving standstill half an hour by laboratory regulation, sample water tumbler spray valve 21 is opened, sample water tumbler 15 is carried out spray Cleaning for High Capacity, and sample water tumbler bleed valve 19 is opened simultaneously, keeps hull-borne, after 1 minute, sample water tumbler spray valve 21 is closed, and cleaning finishes, and sample water tumbler bleed valve 19 stays open hull-borne, sedimentation basin back-flushing valve 22 is opened, Pneumatic three-way valve 6 is in 0 degree position, valve body conducting ram pump 10 and the pipeline between the filter core 9 at this moment excessively, and the 4th magnetic valve 12 is opened, pressurized air enters ram pump 10 cylinder lower sections, make piston up, drive lower end suction upstroke, cause vacuum this moment in ram pump 10 lower end cavitys, make water sample enter ram pump 10 cavitys by crossing filter core 9, and the suspended particulate in the water was blocked in outside the filter core 9, stayed in small-sized sedimentation basin body 1 water, and slowly-releasing valve 13 plays the effect of slowly-releasing air pressure in this process, the pumping velocity of piston is slowed down, prevent because the upstroke excessive velocities causes and fans the air.When ram pump 10 cylinder pistons go upward to a high position, Pneumatic three-way valve is in 180 degree positions, pipeline between this moment valve body conducting ram pump 10 and the sample water tumbler 15, the 3rd magnetic valve 11 is opened, pressurized gas enters ram pump 10 cylinder tops, makes piston descending, drives the suction descent of piston, thereby the generation malleation is squeezed into the sample water tumbler with the intravital water sample of suction chamber.Continuous suction by ram pump 10, be pressed into the switching circulation with Pneumatic three-way valve 6, reach the purpose of water sample being handled and being stored in the sample water tumbler 15, in 1 minute after ram pump 10 begins to move, sample water tumbler bleed valve 19 stays open hull-borne, purpose is might exist ducted water to discharge originally, guarantee that the water in the sample water tumbler is fresh water sample, and with fresh water sample rinse sample water tumbler 15, after 1 minute after ram pump 10 begins to move, sample water tumbler bleed valve 19 cuts out, and sample water tumbler 15 begins to store water sample.When the liquid level switch in the sample water tumbler 15 attained to a high place, ram pump 10 quit work, and water sample homogenizer 18 is started working, the blade high speed rotating stirs by rotation, makes the water sample water quality homogenizing unanimity in the whole sample water tumbler, homogenization process is about 30 seconds, and after homogenizing was finished, the water sample preprocessing process finished.Water sample in this up-to-date style water tumbler 15 can be measured for instrument.After the instrument sample introduction finishes, sample water tumbler bleed valve 19 is opened, to remain the water sample emptying, sample water tumbler spray valve 14 is opened, sample water tumbler 15 is carried out spray Cleaning for High Capacity, emptying then, sedimentation basin bleed valve 5 is opened simultaneously, will remain the water sample emptying, sedimentation basin spray valve 5 is opened, small-sized sedimentation basin body 1 is carried out spray Cleaning for High Capacity, and sedimentation basin back-flushing valve 22 is opened at this moment, and high pressure gas oppositely blow by crossing element wall from crossing filter core 9 inside, to blow away attached to the tiny silt of crossing filter core 9 surfaces, prevent to stop up, spray Cleaning for High Capacity is taken away silt simultaneously, reaches best cleaning performance.Small-sized then sedimentation basin body 1 emptying, the whole service end of processing.
Claims (1)
1. automatic pretreatment unit of water sample, it is characterized in that, comprise the small-sized sedimentation basin body (1) that is installed on first mounting plate (25), one side is provided with sedimentation basin spray thrower (2) in small-sized sedimentation basin body (1) upper end, and be connected with sedimentation basin spray valve (20) on being installed in second mounting plate (26) by pipeline, sedimentation basin spray valve (20) is connected with sample water tumbler spray valve (21) by pipeline, and be connected with pressurization tap water (28) import, sample water tumbler spray valve (21) is connected with the sample water tumbler spray thrower (17) of sample water cup (15) upper end on being installed in the 3rd mounting plate (27) by pipeline, liquid level switch (4) is located at small-sized sedimentation basin body (1) one side under liquid level switch on the sedimentation basin (3) and the sedimentation basin, sedimentation basin bleed valve (5) is located at small-sized sedimentation basin body (1) lower end, opposite side was provided with filter core (9) in small-sized sedimentation basin body (1) upper end, crossed filter core (9) and was connected with compressed air inlet (29) with sedimentation basin back-flushing valve (22) by pipeline; Simultaneously by pipeline and threeway respectively with the Pneumatic three-way valve (6) that is installed on second mounting plate (26), ram pump (10) lower end is connected with the water sample nozzle (14) of sample water cup (15) lower end, one of Pneumatic three-way valve (6) lower end is crossed and second magnetic valve (8) all, pipeline is connected with ram pump (10) upper end with the 3rd magnetic valve (11), and be connected with air filter and tensimeter (23) by lubricator (24), one pipe connection of crossing all between first magnetic valve (7) and second magnetic valve (8) and the 3rd magnetic valve (11) of Pneumatic three-way valve (6) upper end, ram pump (10) middle-end is by the pipe connection between slowly-releasing valve (13) and the 4th magnetic valve (12) and second magnetic valve (8) and the 3rd magnetic valve (11); Sample water cup (15) inside is provided with water sample homogenizer (18), and the top is provided with sample water tumbler liquid level switch (16), and sample water cup (15) upper end is inserted discharge tube with the sample water tumbler bleed valve (19) that install sample water cup (15) lower end by threeway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200569934U CN201201905Y (en) | 2008-04-07 | 2008-04-07 | Water sample automatic pretreatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200569934U CN201201905Y (en) | 2008-04-07 | 2008-04-07 | Water sample automatic pretreatment apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201201905Y true CN201201905Y (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200569934U Expired - Lifetime CN201201905Y (en) | 2008-04-07 | 2008-04-07 | Water sample automatic pretreatment apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN201201905Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501881A (en) * | 2014-12-29 | 2015-04-08 | 广东省农业科学院农业资源与环境研究所 | Surface runoff rate measuring and separating flow sampling device |
| CN108245935A (en) * | 2018-04-17 | 2018-07-06 | 行愿环保科技有限公司 | There is the oil-water separation tank except floating layer |
-
2008
- 2008-04-07 CN CNU2008200569934U patent/CN201201905Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501881A (en) * | 2014-12-29 | 2015-04-08 | 广东省农业科学院农业资源与环境研究所 | Surface runoff rate measuring and separating flow sampling device |
| CN108245935A (en) * | 2018-04-17 | 2018-07-06 | 行愿环保科技有限公司 | There is the oil-water separation tank except floating layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI MOLWAY ENVIRONMENTAL SCIENCE + TECHNOLOGY Free format text: FORMER NAME: SHANGHAI MOLWAY ENVIRONMENTAL + TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201108, No. 1379, D building, 4299 Jin Du Road, Shanghai, Minhang District Patentee after: MOLWAY ENVIRONMENTAL SCIENCE & TECHNOLOGY CO., LTD. Address before: 200233, building 8, building 89, building 1122, North Qinzhou Road, Shanghai, C Patentee before: Shanghai Molway Environmental Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |
|
| CX01 | Expiry of patent term |