CN113804677A - Rapid detection kit for pH of aquaculture water - Google Patents

Rapid detection kit for pH of aquaculture water Download PDF

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Publication number
CN113804677A
CN113804677A CN202111096317.6A CN202111096317A CN113804677A CN 113804677 A CN113804677 A CN 113804677A CN 202111096317 A CN202111096317 A CN 202111096317A CN 113804677 A CN113804677 A CN 113804677A
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cavity
plate
piston
water
rod
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CN202111096317.6A
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Chinese (zh)
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杨兴红
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/80Indicating pH value
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7756Sensor type
    • G01N2021/7759Dipstick; Test strip

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a rapid detection kit for pH of aquaculture water, which comprises a mounting frame, a connecting rod, a detection mechanism and an extraction mechanism, wherein the mounting frame is connected with a first support rod and a second support rod, the connecting rod is connected to the first support rod and the second support rod, the detection mechanism is provided with a plurality of detection mechanisms which are uniformly distributed on the connecting rod at intervals so as to perform sampling detection on water with different depths, the detection mechanism comprises a collection box, a water inlet hole, a first water passing plate and a second water passing plate, the collection box is arranged at the end parts of the first support rod and the second support rod, the collection box comprises a first cavity and a second cavity, the extraction mechanism comprises a sliding plate, a clamping plate, a fixed rod, a support plate, a first piston rod, a second piston rod, a first piston and a second piston, the sliding plate is pulled, the first piston rod and the second piston rod move in the first cavity and the second cavity, and the water enters the first cavity through the water inlet hole, and the chambers of the first cavity and the second cavity are filled with the first water passing plate and the second water passing plate, so that the water body can be sampled conveniently.

Description

Rapid detection kit for pH of aquaculture water
Technical Field
The invention relates to the technical field of water body detection, in particular to a pH rapid detection kit for an aquaculture water body.
Background
The aquaculture water body is the basic environment for aquatic animals to live in, and the growth and development conditions of the aquatic animals are directly affected by the quality of the water. Because the external environmental factors such as weather, bait throwing and the like easily cause the change of the water quality index, when the water quality index exceeds the normal adaptation range of the aquatic livestock, the survival of the aquatic livestock can be directly or indirectly threatened. The pH value is an important index for water quality analysis, so the pH value of the water body is an important physicochemical index which directly determines the occurrence of chemical and biochemical reactions in the water body, and therefore, the culture water body needs to be sampled and detected.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a kit for rapidly detecting the pH of an aquaculture water body.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
A pH rapid detection kit for aquaculture water body, which comprises:
mounting bracket, connecting rod, detection mechanism, extraction mechanism are connected with bracing piece one, bracing piece two on the mounting bracket, the connecting rod is connected on bracing piece one, bracing piece two, the connecting rod is perpendicular with bracing piece one, bracing piece two, detection mechanism be provided with a plurality of and even interval distribution on the connecting rod to can carry out the sampling detection to the water of the different degree of depth, detection mechanism include collect box, inlet opening, water service plate one, water service plate two, collect the box and set up in the tip of bracing piece one, bracing piece two, collect the box and include cavity one, cavity two, be provided with water service plate one, water service plate two between cavity one, the cavity two, the inlet opening is located the tip of cavity one, bracing piece two are provided with guide arm one, guide arm two respectively, guide arm one, guide arm two are parallel arrangement and are parallel with bracing piece one, extraction mechanism install in guide arm one, guide arm two, On the second guide arm, the extraction mechanism includes the slide plate, the cardboard, the dead lever, the extension board, piston rod one, piston rod two, piston one, piston two, guide rod one is located to the slide plate cover, on the guide rod two, the cardboard sets up in the bottom of slide plate, piston one, two matches respectively of piston set up in cavity one, in the cavity two, piston rod one, piston rod two is in cavity one, in the cavity two, the one end of piston rod one links to each other with piston one, the other end stretches out cavity one, the one end of piston rod two links to each other with piston two, the other end stretches out cavity two, extension board and piston rod one, the tip of piston rod two links to each other, the dead lever is connected on the extension board, the cardboard is fixed with the dead lever joint.
As a further improvement of the technical scheme, the shifting mechanism is arranged on the sliding plate and comprises a first mounting plate, a second mounting plate, a handle, a lead screw, a shifting block, a pushing block and a shifting assembly, the first mounting plate and the second mounting plate are vertically arranged on the sliding plate, the lead screw is connected between the first mounting plate and the second mounting plate, one end of the lead screw is movably connected with the second mounting plate, the other end of the lead screw penetrates through the surface of the first mounting plate, the end of the lead screw is fixedly sleeved with the handle, the shifting block is sleeved on the lead screw, the pushing block is connected with the shifting block, the shifting assembly is arranged at the top of the collecting box, and the end of the pushing block is in contact with the shifting assembly.
As the further improvement of this technical scheme, the switching module include the guide pillar, the pellicle, the guide rod, the guide pillar sets up perpendicularly in the top of collecting the box, the guide pillar is provided with two and is parallel arrangement, the pellicle is pegged graft in collecting the box and is in water service plate one, between the water service plate two, the top of pellicle is provided with the clamp plate, the pellicle is located on the guide pillar through the clamp plate cover, the top of guide pillar is provided with external step, the cover is equipped with the spring on the guide pillar, the one end of spring offsets with the bottom of clamp plate, the other end offsets with the top of collecting the box, the guide rod is connected in the tip of pellicle, the guide rod is parallel with the pellicle, the lateral wall of ejector pad is the slope and arranges and contacts with the guide rod.
As a further improvement of the technical scheme, a handle is arranged on the mounting rack.
Compared with the prior art, the water body concentration measuring device has the advantages that in the using process, the plurality of detection mechanisms are uniformly distributed on the connecting rods at intervals, so that water bodies at different depths can be sampled and detected, the switching assembly can enable the semipermeable membrane to extend into the space between the first cavity and the second cavity, and then when the water bodies are extracted, the water bodies enter the first cavity, and the water bodies are allowed to pass through the semipermeable membrane and enter the second cavity through the semipermeable membrane, so that the water body concentration in the first cavity is increased, and the PH of the water bodies is conveniently measured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the detection mechanism of the present invention.
Fig. 3 is a schematic diagram of the switching mechanism of the present invention.
Fig. 4 is a schematic view of the extraction mechanism and the detection mechanism of the present invention.
Fig. 5 is a schematic view of the extraction mechanism of the present invention.
Fig. 6 is a schematic diagram of the switching mechanism of the present invention.
Fig. 7 is a schematic view of the push block and the switching assembly according to the present invention.
Labeled as:
10. a mounting frame; 110. a connecting rod; 120. a handle; 130. a first supporting rod; 140. a second supporting rod; 150. a first guide rod; 160. a second guide rod;
20. a detection mechanism; 210. a first cavity; 211. a water inlet hole; 220. a second cavity; 230. a first water passing plate; 240. a second water passing plate;
30. a drawing mechanism; 310. a slide plate; 320. clamping a plate; 330. fixing the rod; 340. a support plate; 350. a first piston rod; 360. a piston rod II; 370. a first piston; 380. a second piston;
40. a switching mechanism; 410. a first mounting plate; 420. a second mounting plate; 430. a handle; 440. a screw rod; 450. a shift block; 460. a push block; 470. a switching component; 471. a guide post; 472. a semi-permeable membrane; 473. pressing a plate; 474. a guide rod.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-7, a kit for rapidly detecting pH of an aquaculture water body comprises:
mounting bracket 10, connecting rod 110, detection mechanism 20, extraction mechanism 30 are connected with bracing piece 130, two 140 on the mounting bracket 10, and connecting rod 110 is connected on bracing piece 130, two 140, and connecting rod 110 is perpendicular with bracing piece 130, two 140, detection mechanism 20 be provided with a plurality of and even interval distribution on connecting rod 110 to can sample the detection to the water of the different degree of depth, detection mechanism 20 including collect box, inlet opening 211, water service plate 230, water service plate 240, collect the box and set up in bracing piece 130, the tip of bracing piece two 140, collect the box and include cavity 210, cavity two 220, be provided with water service plate 230, water service plate 240 between cavity 210, cavity two 220, inlet opening 211 is seted up in the tip of cavity 210, be provided with guide arm 150 on bracing piece 130, the bracing piece two 140 respectively, A second guide rod 160, the first guide rod 150 and the second guide rod 160 are arranged in parallel and are parallel to the first support rod 130, the extracting mechanism 30 is installed on the first guide rod 150 and the second guide rod 160, the extracting mechanism 30 comprises a sliding plate 310, a clamping plate 320, a fixing rod 330, a support plate 340, a first piston rod 350, a second piston rod 360, a first piston 370 and a second piston 380, the sliding plate 310 is sleeved on the first guide rod 150 and the second guide rod 160, the clamping plate 320 is arranged at the bottom of the sliding plate 310, the first piston 370 and the second piston 380 are respectively arranged in the first cavity 210 and the second cavity 220 in a matching manner, the first piston rod 350 and the second piston 360 are arranged in the first cavity 210 and the second cavity 220, one end of the first piston rod 350 is connected with the first piston 370, the other end of the second piston 360 is connected with the second piston 380, the other end of the piston rod is arranged in the second cavity 220, the support plate 340 is connected with the ends of the first piston rod 350 and the second piston rod 360, the fixing rod 330 is connected with the support plate 340, the clamping plate 320 is clamped and fixed with the fixing rod 330, the sliding plate 310 is pulled, the first piston rod 350 and the second piston rod 360 move in the first cavity 210 and the second cavity 220, so that water is extracted, the water enters the first cavity 210 through the water inlet hole 211, and the first cavity 210 and the second cavity 220 are filled with cavities through the first water passing plate 230 and the second water passing plate 240, so that the water can be sampled conveniently.
As shown in fig. 5-7, in order to obtain a water body with a high concentration and thus facilitate measurement of PH of the water body, the shifting mechanism 40 is disposed on the sliding plate 310, the shifting mechanism 40 includes a first mounting plate 410, a second mounting plate 420, a handle 430, a screw 440, a shifting block 450, a pushing block 460, and a shifting assembly 470, the first mounting plate 410 and the second mounting plate 420 are vertically disposed on the sliding plate 310, the screw 440 is connected between the first mounting plate 410 and the second mounting plate 420, one end of the screw 440 is movably connected with the second mounting plate 420, the other end of the screw passes through a plate surface of the first mounting plate 410, the handle 430 is fixedly disposed at an end of the screw 440, the shifting block 450 is sleeved on the screw 440, the pushing block 460 is connected with the shifting block 450, the shifting assembly 470 is disposed at a top of the collecting box, an end of the pushing block 460 is in contact with the shifting assembly 470, the screw 440 is rotated to drive the shifting block 450 to move, thereby driving the pushing block 460 to move, the pushing block 460 then collides with the switching component 470, thereby triggering the switching component 470 to operate.
More specifically, the switching assembly 470 includes two guide posts 471, a semi-permeable membrane 472, and a guide rod 474, the guide posts 471 are vertically disposed at the top of the collecting box, the two guide posts 471 are disposed in parallel, the semi-permeable membrane 472 is inserted into the collecting box and is located between the first water flow plate 230 and the second water flow plate 240, a pressing plate 473 is disposed at the top of the semi-permeable membrane 472, the semi-permeable membrane 472 is sleeved on the guide posts 471 through the pressing plate 473, an external step is disposed at the top of the guide posts 471, a spring is sleeved on the guide posts 471, one end of the spring abuts against the bottom of the pressing plate 473, the other end of the spring abuts against the top of the collecting box, the guide rod 474 is connected to the end of the semi-permeable membrane 472, the guide rod 474 is parallel to the semi-permeable membrane 472, the side wall of the push block 460 is disposed in an inclined manner and contacts with the guide rod 474, the handle 430 is rotated to drive the push block 460 to move, the inclined side wall of the push block 460 abuts against the guide rod 474, thereby pressing down the semi-permeable membrane 472, the semi-permeable membrane 472 moves down along the guide post 471 and extends into between the first cavity 210 and the second cavity 220, and when extracting the water body, the water body enters the first cavity 210, and because the semi-permeable membrane 472 allows water to pass through, water enters the second cavity 220 through the semi-permeable membrane 472, so that the concentration of the water body in the first cavity 210 is increased, and the PH of the water body can be conveniently measured.
More specifically, the mounting bracket 10 is provided with a handle 120 for facilitating the operation of the worker.
The working principle is as follows:
in the using process of the invention, a worker holds the handle 120, puts the device under water, pulls the sliding plate 310, the first piston rod 350 and the second piston rod 360 move in the first cavity 210 and the second cavity 220 to extract water, the water enters the first cavity 210 through the water inlet hole 211 and fills the chambers of the first cavity 210 and the second cavity 220 through the first water plate 230 and the second water plate 240 to facilitate the sampling of the water, rotates the handle 430, rotates the screw rod 440 to drive the displacement block 450 to move, thereby driving the push block 460 to move, then the push block 460 props against the switching assembly 470 to trigger the switching assembly 470 to work, in the process that the handle 430 rotates the push block 460 to move, the inclined side wall of the push block 460 props against the guide rod 474 to press the semi-permeable membrane 472 downwards, the semi-permeable membrane downwards moves along the guide post 471 and stretches into the space between the first cavity 210 and the second cavity 220, and then extracts the water, in the water got into cavity one 210, because pellicle 472 allows water to pass through, water got into cavity two 220 through pellicle 472 to make the water concentration increase in the cavity one 210, be convenient for survey the PH of water.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims (4)

1. The utility model provides a quick detect reagent box of pH of aquaculture water body which characterized in that, it includes:
mounting bracket, connecting rod, detection mechanism, extraction mechanism are connected with bracing piece one, bracing piece two on the mounting bracket, the connecting rod is connected on bracing piece one, bracing piece two, the connecting rod is perpendicular with bracing piece one, bracing piece two, detection mechanism be provided with a plurality of and even interval distribution on the connecting rod to can carry out the sampling detection to the water of the different degree of depth, detection mechanism include collect box, inlet opening, water service plate one, water service plate two, collect the box and set up in the tip of bracing piece one, bracing piece two, collect the box and include cavity one, cavity two, be provided with water service plate one, water service plate two between cavity one, the cavity two, the inlet opening is located the tip of cavity one, bracing piece two are provided with guide arm one, guide arm two respectively, guide arm one, guide arm two are parallel arrangement and are parallel with bracing piece one, extraction mechanism install in guide arm one, guide arm two, On the second guide arm, the extraction mechanism includes the slide plate, the cardboard, the dead lever, the extension board, piston rod one, piston rod two, piston one, piston two, guide rod one is located to the slide plate cover, on the guide rod two, the cardboard sets up in the bottom of slide plate, piston one, two matches respectively of piston set up in cavity one, in the cavity two, piston rod one, piston rod two is in cavity one, in the cavity two, the one end of piston rod one links to each other with piston one, the other end stretches out cavity one, the one end of piston rod two links to each other with piston two, the other end stretches out cavity two, extension board and piston rod one, the tip of piston rod two links to each other, the dead lever is connected on the extension board, the cardboard is fixed with the dead lever joint.
2. The kit for rapidly detecting the pH of the aquaculture water body according to claim 1, wherein a switching mechanism is arranged on the sliding plate, the switching mechanism comprises a first mounting plate, a second mounting plate, a handle, a lead screw, a shifting block, a pushing block and a switching assembly, the first mounting plate and the second mounting plate are vertically arranged on the sliding plate, the lead screw is connected between the first mounting plate and the second mounting plate, one end of the lead screw is movably connected with the second mounting plate, the other end of the lead screw penetrates through the surface of the first mounting plate, the handle is fixedly sleeved on the end portion of the lead screw, the shifting block is sleeved on the lead screw, the pushing block is connected with the shifting block, the switching assembly is arranged at the top of the collection box, and the end portion of the pushing block is in contact with the switching assembly.
3. The pH rapid detection kit for the aquaculture water body according to claim 2, wherein the switching assembly comprises guide pillars, semi-permeable membranes and guide rods, the guide pillars are vertically arranged at the top of the collecting box, the guide pillars are provided with two and are arranged in parallel, the semi-permeable membranes are inserted into the collecting box and are located between the first water passing plates and the second water passing plates, the top of the semi-permeable membranes is provided with a pressing plate, the semi-permeable membranes are sleeved on the guide pillars through the pressing plate, the top of the guide pillars is provided with an external step, a spring is sleeved on the guide pillars, one end of the spring abuts against the bottom of the pressing plate, the other end of the spring abuts against the top of the collecting box, the guide rods are connected to the ends of the semi-permeable membranes, the guide rods are parallel to the semi-permeable membranes, and the side walls of the push blocks are arranged in an inclined manner and are in contact with the guide rods.
4. The kit for rapidly detecting the pH of the aquaculture water according to claim 1, wherein a handle is arranged on the mounting rack.
CN202111096317.6A 2021-09-16 2021-09-16 Rapid detection kit for pH of aquaculture water Pending CN113804677A (en)

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CN202111096317.6A CN113804677A (en) 2021-09-16 2021-09-16 Rapid detection kit for pH of aquaculture water

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Application Number Priority Date Filing Date Title
CN202111096317.6A CN113804677A (en) 2021-09-16 2021-09-16 Rapid detection kit for pH of aquaculture water

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE900971A (en) * 1983-11-04 1985-05-02 Framatome & Cie DEVICE FOR MEASURING UNDERWATER THE HARDNESS OF A VERTICAL WALL OF THE PARTITION OF THE HEART OF A NUCLEAR PRESSURE WATER REACTOR.
US20110062062A1 (en) * 2009-09-14 2011-03-17 Ryoichi Takahashi Power recovery apparatus
CN104098158A (en) * 2014-07-02 2014-10-15 华中科技大学 Sea water desalination device based on pressure retardation osmosis and reverse osmosis and method thereof
CN104326592A (en) * 2014-10-09 2015-02-04 常州大学 Method for restoration of heavy metal mercury in groundwater
CN106932561A (en) * 2017-05-09 2017-07-07 李淑媛 A kind of automatic moisture detection device in hemodialysis machine
CN107860618A (en) * 2017-12-26 2018-03-30 清华大学 Gather sampling device and detecting system
CN108778469A (en) * 2016-02-02 2018-11-09 特雷维系统公司 The hyperfiltration and its application method of osmotic pressure auxiliary
CN111348764A (en) * 2020-03-06 2020-06-30 上海宇豪环境工程有限公司 Novel marine sewage treatment device
CN210974008U (en) * 2019-11-25 2020-07-10 龙岩市瑞泽环保科技有限公司 Reverse osmosis treatment system with high recovery rate
CN112408621A (en) * 2020-11-18 2021-02-26 衢州林玉环保科技有限公司 Mine sewage treatment equipment for removing heavy metal ions by using metal ion semipermeable membrane
CN112473374A (en) * 2020-11-06 2021-03-12 张梅 Semipermeable membrane desalination device and method with bidirectional forward osmosis online cleaning function
CN213632815U (en) * 2020-11-10 2021-07-06 海南华叡工程咨询有限公司 Water quality monitoring collector with adjustable space

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE900971A (en) * 1983-11-04 1985-05-02 Framatome & Cie DEVICE FOR MEASURING UNDERWATER THE HARDNESS OF A VERTICAL WALL OF THE PARTITION OF THE HEART OF A NUCLEAR PRESSURE WATER REACTOR.
US20110062062A1 (en) * 2009-09-14 2011-03-17 Ryoichi Takahashi Power recovery apparatus
CN104098158A (en) * 2014-07-02 2014-10-15 华中科技大学 Sea water desalination device based on pressure retardation osmosis and reverse osmosis and method thereof
CN104326592A (en) * 2014-10-09 2015-02-04 常州大学 Method for restoration of heavy metal mercury in groundwater
CN108778469A (en) * 2016-02-02 2018-11-09 特雷维系统公司 The hyperfiltration and its application method of osmotic pressure auxiliary
CN106932561A (en) * 2017-05-09 2017-07-07 李淑媛 A kind of automatic moisture detection device in hemodialysis machine
CN107860618A (en) * 2017-12-26 2018-03-30 清华大学 Gather sampling device and detecting system
CN210974008U (en) * 2019-11-25 2020-07-10 龙岩市瑞泽环保科技有限公司 Reverse osmosis treatment system with high recovery rate
CN111348764A (en) * 2020-03-06 2020-06-30 上海宇豪环境工程有限公司 Novel marine sewage treatment device
CN112473374A (en) * 2020-11-06 2021-03-12 张梅 Semipermeable membrane desalination device and method with bidirectional forward osmosis online cleaning function
CN213632815U (en) * 2020-11-10 2021-07-06 海南华叡工程咨询有限公司 Water quality monitoring collector with adjustable space
CN112408621A (en) * 2020-11-18 2021-02-26 衢州林玉环保科技有限公司 Mine sewage treatment equipment for removing heavy metal ions by using metal ion semipermeable membrane

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Application publication date: 20211217