CN112526063B - Device for detecting toxicity of organic matters - Google Patents

Device for detecting toxicity of organic matters Download PDF

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Publication number
CN112526063B
CN112526063B CN202011124924.4A CN202011124924A CN112526063B CN 112526063 B CN112526063 B CN 112526063B CN 202011124924 A CN202011124924 A CN 202011124924A CN 112526063 B CN112526063 B CN 112526063B
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water
air
piston
detection box
air suction
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CN112526063A (en
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刘琴
孙秀梅
杨承虎
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Zhejiang Marine Fisheries Research Institute
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Zhejiang Marine Fisheries Research Institute
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1487Removing organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18Absorbing units; Liquid distributors therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18Water
    • G01N33/186Water using one or more living organisms, e.g. a fish

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Food Science & Technology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a device for detecting the toxicity of organic matters, and aims to overcome the defects that the air leakage phenomenon is easy to occur during the detection of the toxicity of volatile organic matters, and the organic matters in water can volatilize into the air to reduce the concentration of the organic matters in the water, so that the accuracy of detection data is influenced. The device comprises a closed detection box and a piston cylinder, wherein water is filled in the detection box, the bottom of the detection box is communicated with an air inlet pipe, and a one-way air inlet valve is arranged in the air inlet pipe; the upper part of the detection box is communicated with the bottom of the piston cylinder, the air suction piston is arranged in the piston cylinder, the connecting seat and the rotating shaft are arranged in the detection box, the connecting seat is provided with a water pumping cavity, the lower part of the water pumping cavity is communicated with a water inlet pipe and a water outlet pipe, the water inlet pipe is inserted into water, the upper part of the detection box is provided with a plurality of downpipes, the water outlet pipe is communicated with the downpipes, and a plurality of water outlet pores are densely distributed on the downpipes; the pull rope is wound on the rotating shaft, the pull rope is connected to the air suction piston, the rotating shaft is connected with the driving rotary disc, and the water pumping connecting rod is hinged between the driving rotary disc and the water pumping piston.

Description

Device for detecting toxicity of organic matters
Technical Field
The invention relates to an organic matter toxicity detection technology, in particular to a device for detecting organic matter toxicity.
Background
At present, the toxicity of organic matters is generally detected by titrating the organic matters into water in a detection box and observing the survival state of fish flocks cultured in the water. However, no special equipment for detecting the toxicity of organic matters exists at present, and the organic matters in water are easy to volatilize in the whole detection process, so that the concentration of the organic matters in the water can be reduced, the toxicity of the polluted water body is reduced, and the accuracy of detection data is influenced.
Disclosure of Invention
The device for detecting the toxicity of the organic matters overcomes the defects that the phenomenon of air leakage is easy to occur during the toxicity detection of the volatile organic matters, and the organic matters in water can volatilize into the air to reduce the concentration of the organic matters in the water, so that the accuracy of detection data is influenced.
In order to solve the technical problems, the invention adopts the following technical scheme: a device for detecting organic toxicity comprises a closed detection box and a piston cylinder, wherein water is filled in the detection box, the bottom of the detection box is communicated with an air inlet pipe, the opening end of the air inlet pipe is higher than the water surface, and a one-way air inlet valve is arranged in the air inlet pipe; the upper part of the detection box is communicated with the bottom of the piston cylinder, an air suction piston is arranged in the piston cylinder, a gear driven by a motor to rotate is arranged outside the piston cylinder, a rack is connected to the air suction piston, the gear and the rack are meshed for transmission, a connecting seat and a rotating shaft are arranged in the detection box, an air suction cavity and a water pumping cavity are arranged on the connecting seat, an air suction piston is arranged in the air suction cavity, the water pumping cavity is internally provided with the water pumping piston, the air suction piston is provided with an air inlet, a one-way air suction valve is arranged in the air inlet, the lower part of the air suction cavity is communicated with an exhaust pipe, a one-way exhaust valve is arranged in the exhaust pipe, and the exhaust pipe is inserted into water; the lower part of the water pumping cavity is communicated with a water inlet pipe and a water outlet pipe, a one-way water inlet valve is arranged in the water inlet pipe, a one-way water discharge valve is arranged in the water outlet pipe, the water inlet pipe is inserted into water, a plurality of downpipes are arranged at the upper part in the detection box, the water outlet pipe is communicated with the downpipes, and a plurality of water outlet pores are densely distributed on the downpipes; the pull rope is wound on the rotating shaft, the pull rope is connected to the air suction piston, the rotating shaft is connected with the driving rotary table, the driving rotary table is in transmission connection with the driven rotary table, the water pumping connecting rod is hinged between the driving rotary table and the water pumping piston, and the air pumping connecting rod is hinged between the driven rotary table and the air pumping piston.
When the volatile organic compounds are subjected to toxicity detection, a certain amount of water is filled into a detection box, then fish is cultured in the water, a certain amount of organic compounds to be detected are added, the amount of the organic compounds to be added is calculated according to the set concentration of the organic compounds, and finally the detection box is sealed. The motor drives the gear to rotate, the gear and the rack are meshed to enable the rack to drive the air suction piston to move towards the direction far away from the detection box, air is sucked into the detection box, the pressure in the detection box is reduced, the air inlet pipe is inflated into the detection box, and the air is inflated into water to provide sufficient oxygen for fish schools. The air suction piston pulls the rotating shaft to rotate through the pull rope in the process of moving away from the detection box, and the driving turntable on the rotating shaft rotates and drives the driven turntable to rotate together. The initiative carousel rotates and makes the connecting rod pulling piston reciprocating motion that draws water, draws water from the detection case water through the inlet tube and draws water the intracavity and carry the downpipe through the drain pipe in, at last from the play water pore on the downpipe in to the detection case, the organic matter that volatilizees in the air in the detection case is taken away in the in-process of whereabouts to the rivers of drainage, makes the organic matter in the air constantly get back to the aquatic along with rivers. On the other hand, the driven turntable rotates to enable the air exhaust connecting rod to drive the air exhaust piston to reciprocate, air in the detection box is pumped into the air exhaust cavity through the air inlet hole and is exhausted into the water body in the detection box through the exhaust pipe, and organic matters volatilized in the air above the water surface in the detection box are continuously filled into the water. The device for detecting the toxicity of the organic matters is not easy to leak gas when detecting the toxicity of the volatile organic matters, and the organic matters volatilized into the air continuously flow back to the water body, so that the accuracy of detection data is ensured.
Preferably, the air suction piston is communicated with the air inlet hole through an air supply pipe, the air supply pipe is a flexible pipe, and the end part of the air supply pipe is connected to the lower end of the air suction piston. The end part of the air supply pipe is connected to the lower end of the air suction piston, air is sucked to the lower end of the air suction piston all the time, the air suction piston is easy to float to the position of the air suction piston when the air suction piston is pulled outwards to be volatile, the air supply pipe is used for sucking the position, and more organic matters volatilized into the air can be sucked.
Preferably, the piston cylinders are vertically arranged, the lower ends of the piston cylinders are connected to the upper end of the detection box, and the communication holes are formed between the bottoms of the piston cylinders and the upper end of the detection box. The piston cylinder is convenient to arrange.
Preferably, the end part of the piston cylinder is connected with a positioning end cover, a positioning hole is formed in the positioning end cover, and the rack is matched with and penetrates through the positioning hole. The positioning end cover plays a good positioning role in the rack.
Preferably, the open end of the air inlet pipe is provided with a filter screen. The filter screen can filter the air flowing into the air inlet pipe.
Preferably, a waterproof breathable film is arranged between the filter screen and the one-way air inlet valve in the air inlet pipe. The waterproof breathable film has good breathable and waterproof effects.
Preferably, the upper end of the detection box is provided with a bracket, and the gear is rotatably arranged at the upper end of the bracket. The support facilitates the installation of the motor and the gear.
Preferably, the upper part of the detection box is provided with a dosing hole, and a sealing plug is tightly arranged in the dosing hole. The dosing hole is convenient for adding organic matters, and the sealing plug plays a good sealing role in the dosing hole.
Preferably, a seal ring is mounted on the outer wall of the suction piston. The sealing performance of the air suction piston in the moving process is guaranteed by the sealing ring.
Preferably, the plurality of downpipes are uniformly distributed in the radial direction. The downpipe has wide coverage range, and the falling water flow has good adsorption effect on the volatile organic compounds.
Compared with the prior art, the invention has the beneficial effects that: a device for detecting organic matter toxicity is difficult for appearing the gas leakage phenomenon when detecting volatile organic matter toxicity, and the organic matter that volatilizees in the air in addition constantly flows back to the water, has guaranteed the precision of detection data.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
in the figure: 1. the device comprises a detection box, 2, a piston cylinder, 3, an air inlet pipe, 4, a one-way air inlet valve, 5, a filter screen, 6, a waterproof breathable film, 7, an air suction piston, 8, a gear, 9, a rack, 10, a support, 11, a positioning end cover, 12, a positioning hole, 13, a connecting seat, 14, a rotating shaft, 15, an air suction cavity, 16, a water pumping cavity, 17, an air suction piston, 18, a water pumping piston, 19, an air inlet hole, 20, a one-way air suction valve, 21, an exhaust pipe, 22, a one-way exhaust valve, 23, an air inlet pipe, 24, a drain pipe, 25, a one-way water inlet valve, 26, a one-way drain valve, 27, a water falling pipe, 28, a water outlet pore, 29, a pull rope, 30, a driving turntable, 31, a driven turntable, 32, a water pumping connecting rod, 33, an air suction connecting rod, 34, an air inlet pipe, 35, a communication hole, 36, a medicine adding hole, 37 and a sealing plug.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example (b): a device for detecting organic toxicity (see figure 1) comprises a closed detection box 1 and a piston cylinder 2, wherein water is filled in the detection box, the bottom of the detection box is communicated with an air inlet pipe 3, the air inlet pipe extends upwards, the opening end of the air inlet pipe is higher than the water level, and a one-way air inlet valve 4 is arranged in the air inlet pipe; a filter screen 5 is arranged at the opening end of the air inlet pipe, and a waterproof breathable film 6 is arranged between the filter screen and the one-way air inlet valve in the air inlet pipe. The upper part of the detection box is communicated with the bottom of the piston cylinder, an air suction piston 7 is arranged in the piston cylinder, a gear 8 driven by a motor to rotate is arranged outside the piston cylinder, a rack 9 is connected on the air suction piston, and the gear and the rack are in meshing transmission. The upper end of the detection box is provided with a support 10, a gear is rotatably arranged at the upper end of the support, the end part of the piston cylinder is connected with a positioning end cover 11, a positioning hole 12 is formed in the positioning end cover, and the rack is matched with and penetrates through the positioning hole.
A connecting seat 13 and a rotating shaft 14 are arranged in the detection box, an air suction cavity 15 and a water pumping cavity 16 are arranged on the connecting seat, an air suction piston 17 is arranged in the air suction cavity, a water pumping piston 18 is arranged in the water pumping cavity, an air inlet 19 is arranged on the air suction piston, a one-way air suction valve 20 is arranged in the air inlet, the lower part of the air suction cavity is communicated with an exhaust pipe 21, a one-way exhaust valve 22 is arranged in the exhaust pipe, and the exhaust pipe is inserted in water; the lower part of the pumping cavity is communicated with a water inlet pipe 23 and a water outlet pipe 24, a one-way water inlet valve 25 is arranged in the water inlet pipe, a one-way water discharge valve 26 is arranged in the water outlet pipe, the water inlet pipe is inserted into water, a plurality of water falling pipes 27 are arranged at the upper part in the detection box, the plurality of water falling pipes are radially and uniformly distributed, the water outlet pipe is communicated with the water falling pipes, and a plurality of water outlet pores 28 are densely distributed on the water falling pipes; a pull rope 29 is wound on the rotating shaft, the pull rope is connected to the air suction piston, a driving rotary disc 30 is connected to the rotating shaft, the driving rotary disc is in transmission connection with a driven rotary disc 31, a water suction connecting rod 32 is hinged between the driving rotary disc and the water suction piston, and an air suction connecting rod 33 is hinged between the driven rotary disc and the air suction piston. The rotating shaft is connected with a rope blocking disc, and the pull rope is arranged between the driving turntable and the rope blocking disc. The edges of the driving turntable and the driven turntable are both provided with gear rings, the two gear rings are in meshing transmission, and the rotating shaft and the driven turntable are both rotatably installed in the detection box.
An air supply pipe 34 is communicated with the air inlet hole on the air exhaust piston, the air supply pipe is a flexible pipe, and the end part of the air supply pipe is connected with the lower end of the air exhaust piston. The piston cylinder is vertically arranged, the lower end of the piston cylinder is connected to the upper end of the detection box, the communicating hole 35 is formed between the bottom of the piston cylinder and the upper end of the detection box, the pull rope and the air supply pipe penetrate through the communicating hole, and the aperture of the communicating hole is smaller than the inner diameter of the piston cylinder. The upper part of the detection box is provided with a dosing hole 36, and a sealing plug 37 is tightly arranged in the dosing hole. The outer wall of the air suction piston is provided with a sealing ring.
When the volatile organic compounds are subjected to toxicity detection, a certain amount of water is filled into a detection box, then fish is cultured in the water, a certain amount of organic compounds to be detected are added, the amount of the organic compounds to be added is calculated according to the set concentration of the organic compounds, and finally the detection box is sealed. The motor drives the gear to rotate, the gear and the rack are meshed to enable the rack to drive the air suction piston to move towards the direction far away from the detection box, air is sucked into the detection box, the pressure in the detection box is reduced, the air inlet pipe is inflated into the detection box, and the air is inflated into water to provide sufficient oxygen for fish schools. The air suction piston pulls the rotating shaft to rotate through the pull rope in the process of moving away from the detection box, and the driving turntable on the rotating shaft rotates and drives the driven turntable to rotate together. The initiative carousel rotates and makes the connecting rod pulling piston reciprocating motion that draws water, draws water from the detection case water through the inlet tube and draws water the intracavity and carry the downpipe through the drain pipe in, at last from the play water pore on the downpipe in to the detection case, the organic matter that volatilizees in the air in the detection case is taken away in the in-process of whereabouts to the rivers of drainage, makes the organic matter in the air constantly get back to the aquatic along with rivers. On the other hand, the driven turntable rotates to enable the air exhaust connecting rod to drive the air exhaust piston to reciprocate, air in the detection box is pumped into the air exhaust cavity through the air inlet hole and is exhausted into the water body in the detection box through the exhaust pipe, and organic matters volatilized in the air above the water surface in the detection box are continuously filled into the water. The device for detecting the toxicity of the organic matters is not easy to leak gas when detecting the toxicity of the volatile organic matters, and the organic matters volatilized into the air continuously flow back to a water body, so that the accuracy of detection data is ensured.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.

Claims (9)

1. A device for detecting organic toxicity is characterized by comprising a closed detection box and a piston cylinder, wherein water is filled in the detection box, the bottom of the detection box is communicated with an air inlet pipe, the opening end of the air inlet pipe is higher than the water surface, and a one-way air inlet valve is arranged in the air inlet pipe; the upper part of the detection box is communicated with the bottom of the piston cylinder, an air suction piston is arranged in the piston cylinder, a gear driven by a motor to rotate is arranged outside the piston cylinder, a rack is connected to the air suction piston, the gear and the rack are meshed for transmission, a connecting seat and a rotating shaft are arranged in the detection box, an air suction cavity and a water pumping cavity are arranged on the connecting seat, an air suction piston is arranged in the air suction cavity, the water pumping cavity is internally provided with the water pumping piston, the air suction piston is provided with an air inlet, a one-way air suction valve is arranged in the air inlet, the lower part of the air suction cavity is communicated with an exhaust pipe, a one-way exhaust valve is arranged in the exhaust pipe, and the exhaust pipe is inserted into water; the lower part of the water pumping cavity is communicated with a water inlet pipe and a water outlet pipe, a one-way water inlet valve is arranged in the water inlet pipe, a one-way water discharge valve is arranged in the water outlet pipe, the water inlet pipe is inserted into water, a plurality of downpipes are arranged at the upper part in the detection box, the water outlet pipe is communicated with the downpipes, and a plurality of water outlet pores are densely distributed on the downpipes; a pull rope is wound on the rotating shaft, the pull rope is connected to the air suction piston, the rotating shaft is connected with a driving turntable, the driving turntable is in transmission connection with a driven turntable, a water pumping connecting rod is hinged between the driving turntable and the water pumping piston, and an air pumping connecting rod is hinged between the driven turntable and the air pumping piston; the air exhaust piston is communicated with the air inlet hole by an air supply pipe which is a flexible pipe, and the end part of the air supply pipe is connected with the lower end of the air suction piston.
2. The apparatus as claimed in claim 1, wherein the piston cylinder is vertically arranged, the lower end of the piston cylinder is connected to the upper end of the detection box, and the communication hole is formed between the bottom of the piston cylinder and the upper end of the detection box.
3. The apparatus as claimed in claim 1, wherein the end of the piston cylinder is connected to a positioning end cap, the positioning end cap is provided with a positioning hole, and the rack is adapted to penetrate through the positioning hole.
4. The apparatus as claimed in claim 1, wherein a filter screen is installed at the open end of the air inlet pipe.
5. The apparatus as claimed in claim 4, wherein a waterproof and air permeable membrane is installed between the filter screen and the one-way air intake valve.
6. The apparatus as claimed in claim 1, wherein the detecting box is provided with a bracket at an upper end thereof, and the gear is rotatably mounted at an upper end of the bracket.
7. The apparatus for detecting the toxicity of organic substances according to any one of claims 1 to 6, wherein the upper part of the detection box is provided with a dosing hole, and a sealing plug is tightly arranged in the dosing hole.
8. The apparatus for detecting the toxicity of organic substances according to any one of claims 1 to 6, wherein a sealing ring is installed on the outer wall of the air-extracting piston.
9. The apparatus as claimed in any one of claims 1 to 6, wherein a plurality of downpipes are radially and evenly spaced.
CN202011124924.4A 2020-10-20 2020-10-20 Device for detecting toxicity of organic matters Active CN112526063B (en)

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CN112526063B true CN112526063B (en) 2022-06-17

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CN107413826A (en) * 2017-09-18 2017-12-01 重庆天志环保有限公司 A kind of electroplating sludge cement solidification forming bin
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CN111467627A (en) * 2020-05-21 2020-07-31 山东省医疗器械产品质量检验中心 Device for testing in-vitro cytotoxicity of anesthetic breathing tube and working method thereof

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Publication number Priority date Publication date Assignee Title
TW201034742A (en) * 2009-03-18 2010-10-01 Jg Environmental Tech Co Ltd Purification and recycling device and method for volatile organic compounds
CN204325366U (en) * 2013-05-21 2015-05-13 四川炜麒信息科技有限公司 A kind of control device being applied to detection comprehensive toxicity
CN203837985U (en) * 2014-04-08 2014-09-17 浙江省海洋水产研究所 Toxicity testing device
CN105301212A (en) * 2014-07-04 2016-02-03 中国环境科学研究院 High-throughput fish ecotoxicity test system
CN205538893U (en) * 2016-02-04 2016-08-31 大连海洋大学 Experimental device for it tests aquatic organisms toxicology to be used for studying volatile organic compounds
CN105929147A (en) * 2016-04-27 2016-09-07 浙江省海洋水产研究所 Ready-to-use toxicity test device
CN106153880A (en) * 2016-07-20 2016-11-23 苏州华测安评化学品技术服务有限公司 Fish continuous-flow type test system
CN107413826A (en) * 2017-09-18 2017-12-01 重庆天志环保有限公司 A kind of electroplating sludge cement solidification forming bin
CN208902691U (en) * 2018-09-28 2019-05-24 广东电网有限责任公司 Insulate electrified cleaning agent toxicity detection experimental rig
CN109238783A (en) * 2018-10-15 2019-01-18 浙江省海洋水产研究所 A kind of water body benzene homologues in-stiu encapsulation system
CN110813037A (en) * 2019-12-05 2020-02-21 北京清创晋华科技有限公司 System and method for reducing volatile gas emission in waste liquid pulping process
CN111467627A (en) * 2020-05-21 2020-07-31 山东省医疗器械产品质量检验中心 Device for testing in-vitro cytotoxicity of anesthetic breathing tube and working method thereof

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