CN114001018B - Flowing water type test equipment - Google Patents
Flowing water type test equipment Download PDFInfo
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- CN114001018B CN114001018B CN202111271112.7A CN202111271112A CN114001018B CN 114001018 B CN114001018 B CN 114001018B CN 202111271112 A CN202111271112 A CN 202111271112A CN 114001018 B CN114001018 B CN 114001018B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a running water type testing device, which comprises a water delivery pump: used for pumping water source; a mixing unit: the device comprises a reagent adding device and a mixing container, wherein the output end of the water delivery pump and the output end of the reagent adding device are both connected to the mixing container; a test unit: including test container and overflow arrangement, mixing container is provided with and is used for carrying the transfer line of mixed liquid to test container, overflow arrangement is arranged in being provided with the test container and is used for exporting the mixed liquid that is higher than predetermineeing the liquid level for solution volume and concentration are stable in the test procedure, have guaranteed the accuracy of experimental result.
Description
Technical Field
The invention relates to the technical field of flowing water environment biological tests, in particular to flowing water type test equipment.
Background
With the rapid development of modern industry, a part of more and more toxic chemicals inevitably enters the environment during the production and use processes. The water body is an important destination for chemicals entering the environment, and the chemicals entering the water body can affect the aquatic ecosystem, and the influence is related to the toxicity of the chemicals to aquatic organisms. Toxicity data of chemicals to aquatic organisms can be obtained by aquatic organism toxicity tests. Toxicity tests with aquatic organisms as subjects play an important role in assessing the environmental effects of chemicals. Fish is a consumer of aquatic ecosystems, and is most closely related to humans in the food chain. Fish is therefore also frequently used as a subject for toxicity testing in aquatic organisms. Under the common pressure of international trade and environmental management, the demand of developing chemicals and new chemicals for fish toxicity tests in China is continuously increasing. In addition, more and more new chemical substances have the characteristics of hydrolysis, degradation or volatility and the like in water, the actual concentration and the theoretical concentration in the water are different in the fish toxicity test process, the scientificity and the accuracy of the test result can be guaranteed only by continuously updating the test solution, sufficient dissolved oxygen and biological metabolites of the test solution are timely discharged, and the long-term chronic test is guaranteed. In order to successfully perform fish tests and long-term chronic tests of the substances, a flow type test system and equipment which are efficient and convenient to operate automatically need to be developed.
Disclosure of Invention
Aiming at the defects in the prior art, one of the purposes of the invention is to provide a flow type test device, so that the solution amount and the concentration are stable in the test process, and the accuracy of the test result is ensured.
The above object of the present invention is achieved by the following technical solutions:
a flow-through test apparatus comprises
A water delivery pump: used for pumping water source;
a mixing unit: the device comprises a reagent adding device and a mixing container, wherein the output end of the water delivery pump and the output end of the reagent adding device are both connected to the mixing container;
a test unit: including test container and overflow arrangement, mixing container is provided with and is used for carrying the transfer line of mixed liquid to test container, overflow arrangement is provided with and is arranged in the test container to export the mixed liquid that is higher than predetermineeing the liquid level.
The invention in a preferred example may be further configured to: still include agitating unit in the mixing unit, agitating unit is including setting up the stirring in mixing container and the magnetism equipment of inhaling of drive stirring.
The present invention in a preferred example may be further configured to: the overflow device comprises an outer pipe and an inner pipe which are coaxial, the lower end of the outer pipe penetrates through the interior of the test container, the outer pipe is connected with the test container in a sealing mode, and the inner pipe is arranged in the outer pipe in a moving and adjusting mode along the vertical direction.
The present invention in a preferred example may be further configured to: the outer tube medial surface has set gradually smooth section and cooperation section from top to bottom, along the spaced caulking groove that is equipped with of vertical direction in the cooperation section, run through along the horizontal direction on the inner tube and seted up logical groove, it is provided with respectively with caulking groove complex fillet to lead to the inslot, just be provided with drive slider back of the body or relative movement's adjusting part in the inner tube.
The present invention in a preferred example may be further configured to: the downside of outer tube runs through along the horizontal direction has the apopore, the annular that communicates with the apopore is seted up to the inboard of outer tube, just be provided with the connecting rod that both ends run through the apopore in the outer tube, the both ends of connecting rod are provided with the breakwater that is used for sealed apopore, be provided with the sealing spring who supports the connecting rod and move the trend upwards in the annular.
The present invention in a preferred example may be further configured to: the adjusting part comprises a driving rod which is arranged in the inner pipe in an extending mode along the vertical direction, the lower end of the driving rod is hinged to a support rod respectively with a sliding block, a top ring is coaxially fixed to the upper end of the driving rod, a support ring is coaxially fixed in the inner pipe, a thrust spring which pushes the top ring to move upwards is arranged on the support ring, and a control component used for abutting against the upper end of the limited driving rod is arranged at the top of the test container.
The present invention in a preferred example may be further configured to: the control assembly comprises a guide pipe penetrating through the test container, the upper end of the guide pipe is communicated with the output end of the mixing container, a fixing ring is arranged at the lower end in the guide pipe, a push rod penetrates through the fixing ring in a sliding manner, a piston is arranged at the upper end of the push rod, a supporting spring for supporting the piston is arranged on the fixing ring, a limiting ring for blocking the piston to move upwards is arranged in the guide pipe, the lower end of the push rod is abutted against the driving push rod, liquid spraying holes are formed in the guide pipe at intervals in the circumferential direction, and overflow holes are formed in the periphery of the upper side of the inner pipe at intervals in the circumferential direction; when the piston is abutted against the limiting ring, the piston seals the liquid spraying hole; the top ring seals the overflow aperture when the molding abuts the bottom of the caulking groove.
The present invention in a preferred example may be further configured to: the outer side of the guide pipe is coaxially and rotatably provided with a sprinkling ring, the sprinkling ring is communicated with the liquid spraying holes, and the sprinkling holes are formed in the sprinkling ring along the tangential direction of the sprinkling ring.
The invention in a preferred example may be further configured to: the water delivery pump adopts a peristaltic pump.
In summary, the invention includes at least one of the following beneficial technical effects:
1. adding new solution into the test container regularly and quantitatively, and discharging excessive solution through an overflow device, so that the concentration and the amount of the solution in the test container are stable, and the accuracy of an experimental result is ensured;
2. the inner pipe in the overflow device is movably adjusted and arranged in the vertical direction in the outer pipe, so that the requirements for different solution amount tests are met;
3. the spraying holes and the sprinkling holes on the guide pipe in the test container ensure that the new solution can be more uniformly and rapidly mixed with the original solution, thereby ensuring the stability of the concentration of the solution in the test process;
4. when the new solution is injected, the overflow hole is closed, so that the new solution and the original solution can be mixed for a sufficient time;
5. after the experiment, the apopore setting of outer tube lower extreme has been convenient for discharge the solution in the test container fast.
Drawings
Fig. 1 is an overall schematic diagram of a flow-through test apparatus.
Fig. 2 is a half-sectional schematic view of the structure of the overflow device and the control device.
In the figure, 1, a water delivery pump; 2. a reagent adding device; 3. a mixing vessel; 4. a stirrer; 5. magnetically attracting the device; 6. testing the container; 61. a box body; 62. a cover plate; 7. a conduit; 71. a fixing ring; 72. a limiting ring; 73. a liquid ejection hole; 74. a support spring; 75. a push rod; 751. a piston; 76. a sprinkling ring; 761. a water sprinkling hole; 8. an outer tube; 81. a water outlet hole; 82. a ring groove; 83. a connecting rod; 831. a water baffle; 84. a seal spring; 85. a smooth section; 86. a mating segment; 861. caulking grooves; 9. an inner tube; 91. a through groove; 92. a fillet; 93. a driving lever; 931. a top ring; 94. a strut; 95. a support ring; 96. an overflow aperture; 97. a thrust spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a flow-type testing apparatus includes a frame, a water pump 1, a mixing unit and a testing unit sequentially disposed on the frame from top to bottom, wherein the water delivery pump 1 adopts a peristaltic pump, the mixing unit comprises a reagent adding device 2 and a mixing container 3, the water delivery pump 1 quantitatively delivers clean water into the mixing container 3, the reagent adding device 2 also adds a certain amount of reagent into the mixing container 3, the reagent and the clean water are mixed in the mixing container 3 and then sent into the testing container 6 in the testing unit, and the testing container 6 is provided with an overflow device, when a certain amount of solution is added, the synchronous quantitative solution is discharged out of the testing container 6 through an overflow device, therefore, the amount of the solution in the test container 6 is certain, the concentration of the solution in the test container 6 is kept stable, and the accuracy of a test result can be ensured.
Wherein still including setting up the stirring in mixing container 3 4 in the mixing unit, be provided with magnetism below mixing container 3 and inhale equipment 5, inhale equipment 5 through magnetism and drive stirring 4 and rotate fast in mixing container 3 to make reagent and clear water abundant and mix, send mixed solution into test container 6 through the water pump at last.
The testing container 6 comprises a box body 61 and a cover plate 62, the overflow device comprises an outer pipe 8 and an inner pipe 9, wherein the lower end of the outer pipe 8 penetrates through the bottom of the testing container 6 and is in sealed connection with the bottom of the testing container, the lower end of the inner pipe 9 is coaxially inserted into the outer pipe 8, overflow holes are formed in the upper side of the inner pipe 9 at intervals in the circumferential direction, excessive solution in the testing container 6 enters the inner pipe 9 through the overflow holes and then enters the outer pipe 8 from the inner pipe 9 until flows out of the testing container 6, and the inner pipe 9 can be adjusted in a vertical direction in a moving mode, so that the amount of the solution in the testing container 6 can be controlled; and the inner side of the upper end of the outer tube 8 is embedded and fixed with an elastic sealing ring, and after the inner tube 9 is arranged in the outer tube 8, the elastic sealing ring is extruded with the outer side of the inner tube 9, so that the solution is prevented from flowing out from a gap between the outer tube 8 and the inner tube 9, and the stable test can be carried out.
Wherein the inboard of outer tube 8 has set gradually smooth section 85 and cooperation section 86 from top to bottom, cooperation section 86 is equipped with caulking groove 861 along vertical direction interval, the downside of inner tube 9 has run through along the horizontal direction and has seted up logical groove 91, it has a fillet 92 to slide respectively to peg graft in the logical groove 91 of symmetry, still coaxial an active rod 93 that is provided with in inner tube 9, the lower extreme of active rod 93 articulates with the tip of fillet 92 respectively has branch 94, reciprocate through active rod 93, drive relative or back-to-back removal between the fillet 92, make fillet 92 get into or break away from caulking groove 861, realize the fixed of inner tube 9 in outer tube 8 and unblock.
A top ring 931 is coaxially fixed at the upper end of the driving rod 93, a supporting ring 95 is coaxially fixed in the inner tube 9, the driving rod 93 penetrates through the supporting ring 95, a thrust spring 97 is installed on the supporting ring 95, and the thrust spring 97 supports the trend that the top ring 931 moves upwards, so that the driving rod 93 drives the insertion strip 92 to move relatively, and the fixation between the inner tube 9 and the outer tube 8 is unlocked;
meanwhile, a guide tube 7 is installed on the cover plate 62 in a penetrating manner, a fixing ring 71 is coaxially installed on the inner side of the lower end of the guide tube 7, a push rod 75 is installed in the fixing ring 71 in a sliding manner, a piston 751 is installed at the upper end of the push rod 75, a supporting spring 74 is installed on the upper side of the fixing ring 71, the supporting spring 74 has a tendency of pushing the piston 751 to move upwards, a limiting ring 72 is coaxially fixed in the guide tube 7, and the limiting ring 72 is used for abutting against the upper side of the blocking piston 751; when the cover plate 62 is fixed to the case 61, the stopper ring 72 abuts against the piston 751 at this time, so that the lower end of the push rod 75 abuts against the upper end of the active rod 93, and the active rod 93 moves downward by a certain distance, and the insertion strip 92 partially enters the insertion slot 861, thereby fixing the inner tube 9 in the outer tube 8.
Wherein the upper end of the conduit 7 is connected with the output end of the mixing container 3, the solution in the mixing container 3 is sent into the conduit 7 by a water pump, meanwhile, liquid spraying holes 73 are axially arranged at intervals on the guide pipe 7 between the limiting ring 72 and the fixing ring 71, the solution pushes the piston 751 to move downwards until the solution enters the testing container 6 through the liquid spraying holes 73 uniformly, concentration reduction in the testing container 6 in the replenishing and overflowing process is avoided, and, as the piston 751 moves downward, the push rod 75 causes the drive rod 93 to move further downward, until the slug 92 abuts against the bottom of the insert groove 861, with the top ring 931 on the driving lever 93 aligned with the spill aperture 96, so that the spill aperture 96 is sealed, when new solution is continuously input into the test container 6, the new solution in the test container 6 is fully mixed with the original solution, so that the stability of the concentration of the solution in the test container 6 is effectively ensured; until the new solution is stopped to be input, the piston 751 moves upwards under the action of the supporting spring 74 and the thrust spring 97 until the piston 751 abuts against the limiting ring 72, so that the liquid spraying hole 73 is sealed, and the liquid in the subsequent mixing container 3 can be normally mixed.
Simultaneously install watering ring 76 at the coaxial rotation in the outside of pipe 7 to circumference interval is equipped with watering hole 761 on watering ring 76, and watering hole 761 output solution's direction is along the rotatory tangential direction of watering ring 76, so when solution through watering hole 761 blowout, watering ring 76 receives the reaction force and begins to rotate, and then makes in solution can more even spray and test container 6, accelerates the mixing between former solution and the new solution.
A water outlet hole 81 penetrates through the lower side of the outer pipe 8 along the horizontal direction, a ring groove 82 communicated with the water outlet hole 81 is coaxially formed in the outer pipe 8, a connecting rod 83 with two ends penetrating out of the water outlet hole 81 is inserted in the outer pipe 8, the connecting rod 83 can move in the vertical direction in a small range, water baffles 831 are fixed at two ends of the connecting rod 83, and a sealing spring 84 is installed in the ring groove;
when the test is normal, the sealing spring 84 pushes the connecting rod 83 to move upwards, and the water baffle 831 seals the water outlet 81, so that the solution is prevented from leaking;
after the test is finished, the fixing of the inner pipe 9 is unlocked, then the inner pipe 9 is pushed to move downwards, the lower end of the inner pipe 9 presses the connecting rod 83, the connecting rod 83 drives the water baffle 831 to move downwards, the water outlet 81 is opened, and the solution in the test container 6 is quickly discharged from the water outlet 81.
The implementation principle of the embodiment is as follows:
in the test process, the concentration of the solution in the test container 6 needs to be kept stable, clean water is quantitatively fed into the mixing container 3 through a peristaltic pump, then the reagent adding device 2 adds quantitative reagent into the mixing container 3, the stirrer 4 is enabled to fully mix the clean water and the reagent to form solution with certain concentration by adopting magnetic power, and the newly mixed solution is injected into the test container 6 regularly, and because the amount of the liquid in the test container 6 is increased, the excessive solution is discharged out of the container through the overflow device, the test result is prevented from being influenced by the solution.
The embodiments of the present invention are all preferred embodiments of the present invention, and the scope of the present invention is not limited thereby, so: equivalent changes made according to the structure, shape and principle of the invention shall be covered by the protection scope of the invention.
Claims (2)
1. A continuous-flow test equipment which characterized in that: comprises that
Water transfer pump (1): used for pumping water source;
a mixing unit: the device comprises a reagent adding device (2) and a mixing container (3), wherein the output end of the water delivery pump (1) and the output end of the reagent adding device (2) are both connected to the mixing container (3);
a test unit: the device comprises a testing container (6) and an overflow device, wherein a liquid conveying pipe used for conveying mixed liquid to the testing container (6) is arranged on the mixing container (3), and the overflow device is arranged in the testing container (6) and used for outputting the mixed liquid higher than a preset liquid level;
the overflow device comprises an outer pipe (8) and an inner pipe (9) which are coaxial, the lower end of the outer pipe (8) penetrates through the interior of the test container (6), the outer pipe (8) is connected with the test container (6) in a sealing mode, and the inner pipe (9) is arranged in the outer pipe (8) in a movable and adjustable mode along the vertical direction;
the inner side surface of the outer pipe (8) is sequentially provided with a smooth section (85) and a matching section (86) from top to bottom, caulking grooves (861) are formed in the matching section (86) at intervals along the vertical direction, a through groove (91) penetrates through the inner pipe (9) along the horizontal direction, insertion strips (92) matched with the caulking grooves (861) are respectively arranged in the through groove (91), and an adjusting assembly for driving the sliding blocks to move back and forth or relatively is arranged in the inner pipe (9);
the adjusting assembly comprises a driving rod (93) which extends in the inner pipe (9) along the vertical direction, supporting rods (94) are hinged between the lower end of the driving rod (93) and the insertion strip (92) respectively, a top ring (931) is coaxially fixed at the upper end of the driving rod (93), a supporting ring (95) is coaxially fixed in the inner pipe (9), a thrust spring (97) which pushes the top ring (931) to have an upward movement trend is arranged on the supporting ring (95), and a control assembly which is used for limiting the upper end of the driving rod (93) in an abutting mode is arranged at the top of the testing container (6);
the control assembly comprises a guide pipe (7) penetrating through a test container (6), the upper end of the guide pipe (7) is communicated with the output end of the mixing container (3), a fixing ring (71) is arranged at the lower end in the guide pipe (7), a push rod (75) penetrates through the fixing ring (71) in a sliding manner, a piston (751) is arranged at the upper end of the push rod (75), a supporting spring (74) for supporting the piston (751) is arranged on the fixing ring (71), a limiting ring (72) for blocking the piston (751) from moving upwards is arranged in the guide pipe (7), the lower end of the push rod (75) is abutted against the driving push rod (75), liquid spraying holes (73) are formed in the guide pipe (7) at intervals in the circumferential direction, and overflow holes (96) are formed in the circumferential direction of the upper end of the inner pipe (9); when the piston (751) is abutted against the limit ring (72), the piston (751) can seal the liquid spraying hole (73); the top ring (931) seals the overflow aperture (96) when the slug (92) abuts the bottom of the insert groove (861).
2. The flow-through test apparatus according to claim 1, wherein: still include agitating unit among the mixing unit, agitating unit is including setting up stirring seed (4) and the magnetism of drive stirring seed (4) equipment (5) of inhaling in mixing container (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111271112.7A CN114001018B (en) | 2021-10-29 | 2021-10-29 | Flowing water type test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111271112.7A CN114001018B (en) | 2021-10-29 | 2021-10-29 | Flowing water type test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN114001018A CN114001018A (en) | 2022-02-01 |
| CN114001018B true CN114001018B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111271112.7A Active CN114001018B (en) | 2021-10-29 | 2021-10-29 | Flowing water type test equipment |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051000A (en) * | 1989-10-17 | 1991-05-01 | 迪迪尔工厂股份公司 | The device of closing and/or controlling of metallurgical tank |
| CN203837985U (en) * | 2014-04-08 | 2014-09-17 | 浙江省海洋水产研究所 | Toxicity testing device |
| CN106719276A (en) * | 2016-12-28 | 2017-05-31 | 广东中科英海科技有限公司 | A kind of piscine organism enrichment experiment continuous-flow type exposing device |
| CN206596527U (en) * | 2016-12-28 | 2017-10-31 | 广东中科英海科技有限公司 | A kind of piscine organism enrichment experiment continuous-flow type exposing device |
| CN109601459A (en) * | 2018-12-03 | 2019-04-12 | 安徽省农业科学院水产研究所 | A kind of auto purification type circulating water culture system based on biological flocculation technology |
| CN111602627A (en) * | 2020-06-04 | 2020-09-01 | 曲洪霞 | Turbot ecological breeding equipment based on Internet of things |
| CN213992134U (en) * | 2020-12-03 | 2021-08-20 | 冠利达（茂名）食品有限公司 | Ecological self-cleaning cyclic utilization aquaculture pond |
-
2021
- 2021-10-29 CN CN202111271112.7A patent/CN114001018B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051000A (en) * | 1989-10-17 | 1991-05-01 | 迪迪尔工厂股份公司 | The device of closing and/or controlling of metallurgical tank |
| CN203837985U (en) * | 2014-04-08 | 2014-09-17 | 浙江省海洋水产研究所 | Toxicity testing device |
| CN106719276A (en) * | 2016-12-28 | 2017-05-31 | 广东中科英海科技有限公司 | A kind of piscine organism enrichment experiment continuous-flow type exposing device |
| CN206596527U (en) * | 2016-12-28 | 2017-10-31 | 广东中科英海科技有限公司 | A kind of piscine organism enrichment experiment continuous-flow type exposing device |
| CN109601459A (en) * | 2018-12-03 | 2019-04-12 | 安徽省农业科学院水产研究所 | A kind of auto purification type circulating water culture system based on biological flocculation technology |
| CN111602627A (en) * | 2020-06-04 | 2020-09-01 | 曲洪霞 | Turbot ecological breeding equipment based on Internet of things |
| CN213992134U (en) * | 2020-12-03 | 2021-08-20 | 冠利达（茂名）食品有限公司 | Ecological self-cleaning cyclic utilization aquaculture pond |
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| CN114001018A (en) | 2022-02-01 |
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