CN103439149A - Negative pressure pneumatic type automatic sampler for water sample in medium-deep layer - Google Patents
Negative pressure pneumatic type automatic sampler for water sample in medium-deep layer Download PDFInfo
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- CN103439149A CN103439149A CN2013104176130A CN201310417613A CN103439149A CN 103439149 A CN103439149 A CN 103439149A CN 2013104176130 A CN2013104176130 A CN 2013104176130A CN 201310417613 A CN201310417613 A CN 201310417613A CN 103439149 A CN103439149 A CN 103439149A
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Abstract
The invention discloses a negative pressure pneumatic type automatic sampler for a water sample in a medium-deep layer. The negative pressure pneumatic type automatic sampler comprises a sampling water storage chamber, a balance weight device and a gas-liquid tank, wherein a sampling hole is formed in the upper part of the sampling water storage chamber, a gas-liquid piston cylinder is arranged below the sampling hole, a liquid storage cavity of the gas-liquid piston cylinder is connected with the gas-liquid tank through a pipeline, an environmental pressure control valve is arranged on the pipeline, a balancing weight of the balance weight device is fixed on a balancing weight frame through a balancing weight fixed releasing control valve, the balancing weight fixed releasing control valve is connected with the gas-liquid tank through a water returning pipeline, a water returning control valve is arranged on the water returning pipeline, and a pressure trigger button matched with a water returning control valve is arranged at the bottom of the liquid storage cavity. The negative pressure pneumatic type automatic sampler submerges in water under the action of gravity of the balancing weight, so that the water sample in the medium-deep layer with the depth of below 10-30m is automatically acquired, the balancing weight is discarded, a device automatically returns and the acquired sample is brought out due to the adoption of an underwater negative pressure pneumatic technology.
Description
Technical field
The present invention relates to a kind of water sampling device, particularly a kind of negative pressure pneumatic type mid-deep strata water sample automatic sampler.
Background technology
Along with the carrying out of ocean development, the extractive technique of ocean water sample comes into one's own day by day.The extracting mode of ocean water sample is a lot, by its working method, mainly contains at present: manually dive under water, arrange in-line pump and inhale, reach the sample modes such as plant equipment diving.Whether these sampling modes exist variety of issue can pollute as sampling depth, sampling amount, sampling, applied widely wideless etc.
Summary of the invention
Technical matters to be solved by this invention is for the deficiencies in the prior art, provide a kind of reasonable in design, easy to use, utilize equipment to dive under water under the Action of Gravity Field of balancing weight, and utilize negative pressure pneumatics under water to realize that mid-deep strata depthkeeping degree water sample automatically gathers, abandons counterweight, realizes the equipment auto-returned and takes the negative pressure pneumatic type mid-deep strata water sample automatic sampler of sampling out of.
Technical matters to be solved by this invention is to realize by following technical scheme, the present invention is a kind of negative pressure pneumatic type mid-deep strata water sample automatic sampler, be characterized in: comprise the sampling reservoir chamber, the below of sampling reservoir chamber is provided with counter weight device, be provided with the gas-liquid tank between sampling reservoir chamber and counter weight device, the top of described sampling reservoir chamber is provided with thief hatch, bottom be provided with thief hatch over against exhausr port, be respectively equipped with top cover labyrinth and lower sealing cover on thief hatch and exhausr port, between two gland bonnets, by connecting rod, connect, changing the water plate near being equipped with on the connecting rod of lower sealing cover, be provided with gas-liquid piston cylinder below exhausr port, the piston of gas-liquid piston cylinder and aforementioned connecting rod join, and gas-liquid piston cylinder piston below is set to liquid storage cylinder, and the bottom of liquid storage cylinder is connected with the gas-liquid tank by pipeline, and pipeline is provided with the environmental pressure operation valve, described counter weight device comprises the counter-balanced carriage be connected with the gas-liquid tank, counter-balanced carriage is provided with balancing weight, the two ends of balancing weight respectively by counterweight fixedly release control valve with counter-balanced carriage, be connected, counterweight fixedly release control valve is connected with the gas-liquid tank by water return pipeline, water return pipeline is provided with water-returning control valve, and the bottom of liquid storage cylinder is provided with the pressure activated button coordinated with water-returning control valve, described counterweight fixedly release control valve is provided with application valve body, be divided into admission chamber and compression chamber by movable partition in application valve body, filled with fluid in admission chamber, described water return pipeline is communicated with admission chamber, be provided with the retracing spring be connected with movable partition in admission chamber, be provided with the balancing weight fixed pin be connected with movable partition in compression chamber, contain air in sampling reservoir chamber gentle flow container before sampling, the liquid storage cylinder of gas-liquid piston cylinder and counterweight are fixedly filled respectively liquid in the admission chamber of release control valve, change water plate and thief hatch inwall fitted seal, the sampling thief dive is to set depth, the environmental pressure operation valve is opened under the effect of environment hydraulic pressure, the water plate that changes in the sampling reservoir chamber leaves thief hatch, seawater enters in the sampling reservoir chamber by thief hatch, and piston continues the lower upper-lower seal lid of exercising and covers respectively on thief hatch and exhausr port, and the piston of gas-liquid piston cylinder touches the pressure activated button simultaneously, water-returning control valve is opened, counterweight fixedly release control valve is opened, and balancing weight comes off, and at the effect down-sampler of buoyancy, returns.
Technical matters to be solved by this invention can also further realize by following technical scheme, described environmental pressure operation valve is provided with valve body, be provided with inlet chamber and discharge chamber in valve body, be provided with valve seat between inlet chamber and discharge chamber, be provided with the spool coordinated with valve seat in discharge chamber, be provided with the valve rod joined with spool in discharge chamber, be provided with the diaphragm compression chamber over against valve rod on the outer wall of inlet chamber, the outer end of described valve rod is arranged in the diaphragm compression chamber, the diaphragm compression chamber is provided with the pressure-sensitive diaphragm coordinated with the valve rod termination, valve rod in the diaphragm compression chamber is provided with pressure spring.
Technical matters to be solved by this invention can also further realize by following technical scheme, on the pipeline be connected with the gas-liquid tank at the liquid storage cylinder of gas-liquid piston cylinder, retaining valve is housed.
Compared with prior art, the present invention carries out dive by self entrained balancing weight, the pressure simultaneously produced lower than the equipment environment depth of water of living in by the entrained air pressure of equipment, carry out water sampling, when arriving set depth, trigger the environmental pressure operation valve by hydraulic pressure, thereby automatically the liquid in gas-liquid piston cylinder is pressed in the gas-liquid tank, the reservoir chamber that simultaneously makes to sample gathers water sample, after having gathered, abandon balancing weight equipment buoyancy is increased, auto-returned.The present invention can realize automatically gathering, abandoning counterweight, realize the equipment auto-returned and take sampling out of at mid-deep strata (below 10-30 rice) depthkeeping degree water sample, is applicable to the multiple occasions such as sea farming, ocean new energy development, the investigation of ocean water quality and monitoring.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the structural representation of environmental pressure operation valve of the present invention.
Fig. 3 is the fixedly structural representation of release control valve of counterweight of the present invention.
Embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
With reference to Fig. 1, a kind of negative pressure pneumatic type mid-deep strata water sample automatic sampler, comprise sampling reservoir chamber 5, the below of sampling reservoir chamber 5 is provided with counter weight device 15, be provided with gas-liquid tank 9 between sampling reservoir chamber 5 and counter weight device 15, the top of described sampling reservoir chamber 5 is provided with thief hatch, bottom be provided with thief hatch over against exhausr port, be respectively equipped with top cover labyrinth 1 and lower sealing cover 3 on thief hatch and exhausr port, connect by connecting rod 2 between two gland bonnets 1,3, near being equipped with on the connecting rod 2 of lower sealing cover 3, changing water plate 4; Be provided with gas-liquid piston cylinder 7 below exhausr port, piston 6 and the aforementioned connecting rod 2 of gas-liquid piston cylinder 7 join, gas-liquid piston cylinder 7 piston 6 belows are set to liquid storage cylinder 8, the bottom of liquid storage cylinder 8 is connected with gas-liquid tank 9 by pipeline 10, pipeline 10 is provided with environmental pressure operation valve 13, at environmental pressure operation valve 13, on the pipeline 10 between liquid storage cylinder 8, is provided with retaining valve.Retaining valve can avoid the variation due to environmental pressure in floating-upward process to cause piston 6 actions, and the sampling reservoir chamber 5 of sealing is opened.
Described counter weight device 15 comprises the counter-balanced carriage 12 be connected with gas-liquid tank 9, counter-balanced carriage 12 is provided with balancing weight 14, the two ends of balancing weight 14 respectively by counterweight fixedly release control valve 16 with counter-balanced carriage 12, be connected, counterweight fixedly release control valve 16 is connected with gas-liquid tank 9 by water return pipeline 11, water return pipeline 11 is provided with water-returning control valve, and the bottom of liquid storage cylinder 8 is provided with the pressure activated button coordinated with water-returning control valve.
With reference to Fig. 3, described counterweight fixedly release control valve 16 is provided with application valve body 161, be divided into admission chamber and compression chamber by movable partition 163 in application valve body 161, described water return pipeline 11 is communicated with admission chamber, be provided with the retracing spring 164 be connected with movable partition 163 in admission chamber, be provided with the balancing weight fixed pin 162 be connected with movable partition 163 in compression chamber.Before sampling, filled with fluid in admission chamber, make retracing spring 164 softened, and balancing weight fixed pin 162 inserts in balancing weight 14 balancing weight 14 is fixing; After liquid in admission chamber is discharged, retracing spring 164 drive activity partitions 163 and balancing weight fixed pin 162 are retracted, and balancing weight 14 will break away from counter-balanced carriage 12.
Before sampling: in the gentle flow container 9 of sampling reservoir chamber 5, contain air, the liquid storage cylinder 8 of gas-liquid piston 6 cylinders 7 and counterweight are fixedly filled respectively liquid in release control valve 16, can guarantee upper- lower seal lid 1,3, piston 6 and change water plate 4 can not move down because the environment seawater pressure increases before reaching set depth.Change water plate 4 and thief hatch inwall fitted seal, select balancing weight 14 according to set depth simultaneously, make it can guarantee dive, guarantee again normally returning of jettisoning balancing weight 14 post-sampling devices.Set in addition the predetermined pressure of environmental pressure operation valve 13 according to sampling depth.
The sampling thief dive: controlled by environmental pressure operation valve 13, sampling thief is not sampled before set depth in dive.Under the effect of balancing weight 14, the sampling thief dive is to set depth, environmental pressure operation valve 13 is opened under the effect of environment hydraulic pressure, the piston 6 of gas-liquid piston cylinder 7 is moved down by the differential pressure action of environment hydraulic pressure and gas-liquid tank 9 interior gases, make in the liquid row air inlet flow container 9 in liquid storage cylinder 8, under this suction function, the water plate 4 that changes in (negative pressure means the pressure that the entrained air pressure of equipment produces lower than the equipment environment depth of water of living in) sampling reservoir chamber 5 leaves thief hatch again, under the ambient water pressure effect, seawater enters in sampling reservoir chamber 5 by thief hatch, piston 6 continues the lower upper-lower seal lid 1 of exercising, 3 cover respectively on thief hatch and exhausr port, complete the task of deep water collection sealing water sample, the piston 6 of gas-liquid piston cylinder 7 touches the pressure activated button simultaneously, water-returning control valve is opened, the counterweight fixedly liquid in release control valve 16 flows in gas-liquid tank 9 under the effect of environment seawater pressure, fixedly balancing weight fixed pin 162 retractions of release control valve 16 of counterweight like this, balancing weight 14 comes off, the buoyancy of sampling thief is greater than himself gravity, effect down-sampler at buoyancy returns, complete the overall process of once sampling.
With reference to Fig. 2, described environmental pressure operation valve 13 is provided with valve body 131, be provided with inlet chamber 132 and discharge chamber 133 in valve body 131, be provided with valve seat 135 between inlet chamber 132 and discharge chamber 133, be provided with the spool 134 coordinated with valve seat 135 in discharge chamber 133, be provided with the valve rod 138 joined with spool 134 in discharge chamber 133, be provided with the diaphragm compression chamber over against valve rod 138 on the outer wall of inlet chamber 132, the outer end of described valve rod 138 is arranged in the diaphragm compression chamber, the diaphragm compression chamber is provided with the pressure-sensitive diaphragm 137 coordinated with valve rod 138 terminations, valve rod 138 in the diaphragm compression chamber is provided with pressure spring 136.The valve of environmental pressure shown in figure is a kind of embodiment wherein just, so long as realize that by pressure-sensitive diaphragm 137 unlatching to spool 134 is all within protection scope of the present invention.
Claims (3)
1. a negative pressure pneumatic type mid-deep strata water sample automatic sampler, it is characterized in that: comprise the sampling reservoir chamber, the below of sampling reservoir chamber is provided with counter weight device, be provided with the gas-liquid tank between sampling reservoir chamber and counter weight device, the top of described sampling reservoir chamber is provided with thief hatch, bottom be provided with thief hatch over against exhausr port, be respectively equipped with top cover labyrinth and lower sealing cover on thief hatch and exhausr port, connect by connecting rod between two gland bonnets, near being equipped with on the connecting rod of lower sealing cover, changing the water plate; Be provided with gas-liquid piston cylinder below exhausr port, the piston of gas-liquid piston cylinder and aforementioned connecting rod join, and gas-liquid piston cylinder piston below is set to liquid storage cylinder, and the bottom of liquid storage cylinder is connected with the gas-liquid tank by pipeline, and pipeline is provided with the environmental pressure operation valve; Described counter weight device comprises the counter-balanced carriage be connected with the gas-liquid tank, counter-balanced carriage is provided with balancing weight, the two ends of balancing weight respectively by counterweight fixedly release control valve with counter-balanced carriage, be connected, counterweight fixedly release control valve is connected with the gas-liquid tank by water return pipeline, water return pipeline is provided with water-returning control valve, and the bottom of liquid storage cylinder is provided with the pressure activated button coordinated with water-returning control valve; Described counterweight fixedly release control valve is provided with application valve body, be divided into admission chamber and compression chamber by movable partition in application valve body, filled with fluid in admission chamber, described water return pipeline is communicated with admission chamber, be provided with the retracing spring be connected with movable partition in admission chamber, be provided with the balancing weight fixed pin be connected with movable partition in compression chamber; Contain air in sampling reservoir chamber gentle flow container before sampling, the liquid storage cylinder of gas-liquid piston cylinder and counterweight are fixedly filled respectively liquid in the admission chamber of release control valve, change water plate and thief hatch inwall fitted seal; The sampling thief dive is to set depth, the environmental pressure operation valve is opened under the effect of environment hydraulic pressure, the water plate that changes in the sampling reservoir chamber leaves thief hatch, seawater enters in the sampling reservoir chamber by thief hatch, and piston continues the lower upper-lower seal lid of exercising and covers respectively on thief hatch and exhausr port, and the piston of gas-liquid piston cylinder touches the pressure activated button simultaneously, water-returning control valve is opened, counterweight fixedly release control valve is opened, and balancing weight comes off, and at the effect down-sampler of buoyancy, returns.
2. negative pressure pneumatic type mid-deep strata water sample automatic sampler according to claim 1, it is characterized in that: described environmental pressure operation valve is provided with valve body, be provided with inlet chamber and discharge chamber in valve body, be provided with valve seat between inlet chamber and discharge chamber, be provided with the spool coordinated with valve seat in discharge chamber, be provided with the valve rod joined with spool in discharge chamber, be provided with the diaphragm compression chamber over against valve rod on the outer wall of inlet chamber, the outer end of described valve rod is arranged in the diaphragm compression chamber, the diaphragm compression chamber is provided with the pressure-sensitive diaphragm coordinated with the valve rod termination, valve rod in the diaphragm compression chamber is provided with pressure spring.
3. negative pressure pneumatic type mid-deep strata water sample automatic sampler according to claim 1 is characterized in that: on the pipeline be connected with the gas-liquid tank at the liquid storage cylinder of gas-liquid piston cylinder, retaining valve is housed.
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| CN201310417613.0A CN103439149B (en) | 2013-09-14 | 2013-09-14 | Negative pressure pneumatic type automatic sampler for water sample in medium-deep layer |
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| CN103439149B CN103439149B (en) | 2015-05-13 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852347A (en) * | 2014-02-13 | 2014-06-11 | 河海大学 | Sampling method and device of ultra-deep underwater depth keeping sample |
| CN104880336A (en) * | 2014-12-30 | 2015-09-02 | 浙江省海洋水产研究所 | Bottom-water layered water-gathering device |
| CN106198872A (en) * | 2016-07-12 | 2016-12-07 | 中国科学院光电研究院 | A kind of deep sea in-situ gas detector exhaust apparatus |
| CN107047534A (en) * | 2017-01-19 | 2017-08-18 | 中国科学院海洋研究所 | A kind of deep-sea sampling preparation of specimen device |
| CN107063764A (en) * | 2017-04-01 | 2017-08-18 | 中国海洋大学 | A kind of suction-type water sampler and unit suction-type bottom water sampling system |
| CN107091757A (en) * | 2017-05-12 | 2017-08-25 | 浙江省海洋水产研究所 | Intertidal zone reef attachment sample devices |
| CN107478459A (en) * | 2017-09-24 | 2017-12-15 | 国家海洋局第海洋研究所 | One kind can throw load-type deep-sea gravity column shaped deposit sampler |
| CN107831047A (en) * | 2017-12-05 | 2018-03-23 | 天津海辰华环保科技股份有限公司 | Vapour-pressure type deepwater substrate sludge sampling device |
| CN111076981A (en) * | 2019-12-31 | 2020-04-28 | 江苏启辰检测科技有限公司 | Deep water sampling mechanism for laboratory sewage detection and sampling method thereof |
| CN111351912A (en) * | 2020-03-27 | 2020-06-30 | 贵州金洋检测工程有限公司 | Industrial sewage detection equipment |
| CN111735926A (en) * | 2020-08-12 | 2020-10-02 | 安徽清大云博环保科技有限公司 | Water quality analyzer with accurate function of adding reagent to water sample |
| CN111766118A (en) * | 2020-08-18 | 2020-10-13 | 马广彬 | Water quality monitoring is with multi-level water intaking equipment |
| CN112179716A (en) * | 2020-09-22 | 2021-01-05 | 河南省环境保护科学研究院 | Water environment monitoring sampling system for basin environment monitoring |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852347B (en) * | 2014-02-13 | 2016-08-17 | 河海大学 | The sampling method of ultra-deep underwater fixed depth sampling and sampler |
| CN103852347A (en) * | 2014-02-13 | 2014-06-11 | 河海大学 | Sampling method and device of ultra-deep underwater depth keeping sample |
| CN104880336A (en) * | 2014-12-30 | 2015-09-02 | 浙江省海洋水产研究所 | Bottom-water layered water-gathering device |
| CN104880336B (en) * | 2014-12-30 | 2017-06-30 | 浙江省海洋水产研究所 | Bottom water stratification water sampling device |
| CN106198872B (en) * | 2016-07-12 | 2018-08-03 | 中国科学院光电研究院 | A kind of deep sea in-situ gas detecting instrument exhaust apparatus |
| CN106198872A (en) * | 2016-07-12 | 2016-12-07 | 中国科学院光电研究院 | A kind of deep sea in-situ gas detector exhaust apparatus |
| CN107047534A (en) * | 2017-01-19 | 2017-08-18 | 中国科学院海洋研究所 | A kind of deep-sea sampling preparation of specimen device |
| CN107063764A (en) * | 2017-04-01 | 2017-08-18 | 中国海洋大学 | A kind of suction-type water sampler and unit suction-type bottom water sampling system |
| CN107063764B (en) * | 2017-04-01 | 2023-06-06 | 中国海洋大学 | Suction type water sample collector and unit suction type bottom water sample collection system |
| CN107091757B (en) * | 2017-05-12 | 2019-01-04 | 浙江省海洋水产研究所 | Intertidal zone reef attachment sample devices |
| CN107091757A (en) * | 2017-05-12 | 2017-08-25 | 浙江省海洋水产研究所 | Intertidal zone reef attachment sample devices |
| CN107478459A (en) * | 2017-09-24 | 2017-12-15 | 国家海洋局第海洋研究所 | One kind can throw load-type deep-sea gravity column shaped deposit sampler |
| CN107478459B (en) * | 2017-09-24 | 2019-09-06 | 自然资源部第一海洋研究所 | One kind can throw load-type deep-sea gravity column shaped deposit sampler |
| CN107831047A (en) * | 2017-12-05 | 2018-03-23 | 天津海辰华环保科技股份有限公司 | Vapour-pressure type deepwater substrate sludge sampling device |
| CN111076981B (en) * | 2019-12-31 | 2021-08-03 | 江苏启辰检测科技有限公司 | Deep water sampling mechanism for laboratory sewage detection and sampling method thereof |
| CN111076981A (en) * | 2019-12-31 | 2020-04-28 | 江苏启辰检测科技有限公司 | Deep water sampling mechanism for laboratory sewage detection and sampling method thereof |
| CN111351912B (en) * | 2020-03-27 | 2022-03-08 | 贵州金洋检测工程有限公司 | Industrial sewage detection equipment |
| CN111351912A (en) * | 2020-03-27 | 2020-06-30 | 贵州金洋检测工程有限公司 | Industrial sewage detection equipment |
| CN111735926A (en) * | 2020-08-12 | 2020-10-02 | 安徽清大云博环保科技有限公司 | Water quality analyzer with accurate function of adding reagent to water sample |
| CN111766118A (en) * | 2020-08-18 | 2020-10-13 | 马广彬 | Water quality monitoring is with multi-level water intaking equipment |
| CN111766118B (en) * | 2020-08-18 | 2023-12-19 | 蔚蓝计划(北京)科技有限公司 | Multilayer water taking equipment for water quality monitoring |
| CN112179716A (en) * | 2020-09-22 | 2021-01-05 | 河南省环境保护科学研究院 | Water environment monitoring sampling system for basin environment monitoring |
| CN112179716B (en) * | 2020-09-22 | 2022-11-01 | 河南省环境保护科学研究院 | Water environment monitoring sampling system for basin environment monitoring |
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