CN207198680U - A kind of toxicity test device of fishes of regulation and control pH value - Google Patents
A kind of toxicity test device of fishes of regulation and control pH value Download PDFInfo
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- CN207198680U CN207198680U CN201721179133.5U CN201721179133U CN207198680U CN 207198680 U CN207198680 U CN 207198680U CN 201721179133 U CN201721179133 U CN 201721179133U CN 207198680 U CN207198680 U CN 207198680U
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Abstract
It the utility model is related to the toxicity test device of fishes of regulation and control pH value, effectively solves moment detection pH value, realize control ph, the problem of ensuring water quality safety, its structure is that the output end of pH controllers connects two peristaltic pumps, is connected respectively with acid solution bucket, lye tank, pH probes are connected with pH controllers, and stretch into fish jar；Described toxicity test unit, equipped with the cooling circulating water machine being connected with outer shell on framework inner bottom surface, fish jar is equipped with illuminating lamp, liquid Dropping feeder is connected with oxygen pump built with liquid Dropping feeder above fish jar below dividing plate；The liquid Dropping feeder, the lower end of acid solution pipe and alkali liquor pipe is stretched into double-layer hollow ball center, double-layer hollow ball is built with Bubbled stone, acid solution pipe, alkali liquor pipe are connected with peristaltic pump respectively, pH controllers, peristaltic pump, cooling circulating water machine, illuminating lamp, oxygen pump are connected with power supply, the utility model experiment is accurate, efficiency high, and technical support is provided to administer water pollution and quality of water environment.
Description
Technical field
Bioassay equipment is the utility model is related to, particularly a kind of toxicity test device of fishes of regulation and control pH value.
Background technology
With the continuous progress of the industrialization of the country, substantial amounts of industrial wastewater discharge makes river seriously dirty into rivers and lakes
Dye, had both caused the toxicity of water fish class to accumulate, can not eat, and the drinking water safety of the mankind is threatened.Pass through fish poison
Property experiment, grasp tested material various concentrations and under different action times to murder by poisoning caused by fish, to administer water pollution and water ring
Border quality provides important technology and supported.
Experiment finds that during toxicity test of fishes, the pH value of water body is constantly changing, one side pH value too high or
For the too low living environment that can change fish so as to cause fish dead, the change of another aspect experimental condition can cause the shakiness of experiment
It is qualitative, toxic action of the uncontrollable unitary variant to fish, large effect is produced to result of the test, reduces result of the test
Accuracy and reliability.And currently for toxicity test of fishes, the device for detecting control ph constantly is lacked in equipment, no
The technical requirements for toxicity test of fishes can be met, influence to carry out river effectively monitoring, reparation and management.
Utility model content
For the above situation, to overcome the defect of prior art, the purpose of the utility model is just to provide a kind of regulation and control pH
The toxicity test device of fishes of value, can effectively solve moment detection pH value, realize control ph, it is ensured that the problem of water quality safety.
The technical scheme that the utility model solves is a kind of toxicity test device of fishes of regulation and control pH value, including framework, tune
Control pH value unit and toxicity test unit, described regulation and control pH value unit are, including pH probes（Or pH sensors, pH electrodes）
With the pH controllers above framework central dividing plate（Or pH value on-line continuous monitoring instrument）, lye tank, acid solution bucket and wriggling
Pump, an output end of pH controllers（out1）Connect the first peristaltic pump, another output end of pH controllers（out2）Connection the
Two peristaltic pumps, the first peristaltic pump are connected with acid solution bucket, and the second peristaltic pump is connected with lye tank, pH probes and pH controllers
Input is connected, and stretches into fish jar；Described toxicity test unit includes the outer shell on base of frame inner face and is mounted in
At least one fish jar in outer shell, equipped with the cooling circulating water machine being connected with outer shell, fish jar on framework inner bottom surface by outer shell
Built with liquid Dropping feeder, above fish jar below the dividing plate on illuminating lamp be housed, liquid Dropping feeder through cure by oxygen therapy moccasin pipe and
Oxygen pump on dividing plate is connected；Described liquid Dropping feeder includes Bubbled stone, double-layer hollow ball, acid solution pipe and alkali lye
The lower end of pipe, acid solution pipe and alkali liquor pipe is stretched into double-layer hollow ball center, and double-layer hollow ball is built with Bubbled stone, acid solution Guan Yu
One peristaltic pump is connected, and alkali liquor pipe is connected with the second peristaltic pump, and acid solution blast pipe is housed on acid solution pipe, alkali is housed on alkali liquor pipe
Liquid blast pipe, pH controllers, the first peristaltic pump, the second peristaltic pump, cooling circulating water machine, illuminating lamp, oxygen pump power end with
Power switch on control panel is connected, and power switch is connected through wire with attaching plug.
The utility model structure novel and unique, easy to operate, effect is good, and experiment is accurate, efficiency high, saving of work and time, leads to
Cross toxicity test of fishes, grasp tested material various concentrations and under different action times to murder by poisoning caused by fish, it is dirty to administer water
Dye and quality of water environment provide important technology and supported, economic and social benefit is notable.
Brief description of the drawings
Fig. 1 is structural frames diagram of the present utility model.
Fig. 2 is liquid Dropping feeder structural front view of the present utility model.
Fig. 3 is connection structure diagram of the present utility model.
Embodiment
Specific embodiment of the present utility model is elaborated below in conjunction with accompanying drawing.
As shown in Fig. 1-3, a kind of toxicity test device of fishes of regulation and control pH value of the utility model, including framework, regulation and control pH
Value cell and toxicity test unit, described regulation and control pH value unit are, including pH probes（Or pH sensors, pH electrodes）1 He
PH controllers above the central dividing plate 18-1 of framework 18（Or pH value on-line continuous monitoring instrument）2nd, lye tank, acid solution bucket and
Peristaltic pump, an output end of pH controllers 2（out1）Connect the first peristaltic pump 3, another output end of pH controllers（out2）
The second peristaltic pump 5 is connected, the first peristaltic pump 3 is connected with acid solution bucket 4, and the second peristaltic pump 5 is connected with lye tank 6, pH probes 1
It is connected with the input of pH controllers, and stretches into fish jar 8；Described toxicity test unit includes being mounted in the bottom inner face of framework 18
On outer shell 17 and at least one fish jar 8 in outer shell, equipped with being connected with outer shell on the inner bottom surface of framework 18 by outer shell
Cooling circulating water machine 19, fish jar built with liquid Dropping feeder 7, above fish jar below the dividing plate 18-1 on illuminating lamp is housed
20, liquid Dropping feeder 7 is connected through curing by oxygen therapy moccasin pipe 10 with the oxygen pump 16 on dividing plate 18-1；Described liquid is added dropwise
Device includes Bubbled stone 9, double-layer hollow ball 15, acid solution pipe 11 and alkali liquor pipe 12, and the lower end of acid solution pipe 11 and alkali liquor pipe 12 is stretched into
In the center of double-layer hollow ball 15, double-layer hollow ball 15 is connected built with Bubbled stone 9, acid solution pipe 11 with the first peristaltic pump 3, alkali lye
Pipe 12 is connected with the second peristaltic pump 5, and acid solution blast pipe 13 is housed on acid solution pipe 11, alkali lye blast pipe is housed on alkali liquor pipe 12
14, pH controllers 2, the first peristaltic pump 3, the second peristaltic pump 5, cooling circulating water machine 19, illuminating lamp 20, the power end of oxygen pump 16
It is connected with the power switch on control panel 22, power switch is connected through wire with attaching plug 23.
In order to ensure using effect and easy to use, described outer shell 17 is the hollow cuboid of channel-shaped, and its volume is at least 3
The volume of individual fish jar, multiple experiments are carried out to facilitate；
Described illuminating lamp 20 is LED, in favor of the light application time of fish under simulation natural ecological environment；
There is the display 2-1 for showing pH value the described model CT-6658 of pH controllers 2, front portion；
Described pH probes model CT-1001, the first peristaltic pump 3, the model of the second peristaltic pump 5 are BT100-2J, oxygen
Air pump is model SB-948 fish pond oxygen increasing machine；
The lower port of the acid solution pipe 11 and the lower port of alkali liquor pipe 12 are fixed on by corrosion-resistant fish silk thread through tube wall
On Bubbled stone 9, two layers of polyhedron empty ball 15 is wrapped up in outside；
Around equipped with iron wire on described pH controllers and the cable of pH probe connections, iron wire ties up to the frame of the top of fish jar 8
On frame, pH probes had both been fixed, have facilitated the dismounting of pH probes and cleaning again（Do not indicated in figure）；
Described framework is two layers of cube that aluminum alloy square tube is welded；
Three-way connection is used between described acid solution blast pipe 13, alkali lye blast pipe 14 and acid solution pipe 11, alkali liquor pipe 12
Connect；
A diameter of 40mm, the high 13mm of the Bubbled stone 9, polyhedron empty ball 15 internal layer diameter 50mm, outer layer diameter 76mm,
Polyhedron empty ball 15 respectively has 12 ball clacks up and down along whole one of reinforcing ring of Zhou Changyou, ball, is arranged along central shaft in radiation,
Specific surface area is big, acid ＆ alkali liquid can be made to be sufficiently mixed under the drive of bubble in polyhedron empty ball 15 with experiment water, then in gas
It is radial under the promotion of bubble to be spread to surrounding, and the light weight of polyhedron empty ball 15 is corrosion-resistant.
From the foregoing, a kind of toxicity test device of fishes of regulation and control pH value of the present utility model uses in structure：
Regulating and controlling pH units is：A pH is set to pop one's head in fish jar（CT-1001）；PH probe connection pH controllers（CT-
6658）；The output end OUT of pH controllers1Connect a peristaltic pump（BT100-2J）, one end connection acid solution bucket of the peristaltic pump,
The other end leads to liquid Dropping feeder；The output end OUT of pH controllers2Connect a peristaltic pump（BT100-2J）, the peristaltic pump
One end connection lye tank, the other end leads to liquid Dropping feeder, and the liquid Dropping feeder is configured in fish jar.
Toxicity test unit is：One of the fish jar number and every three fish jars of test requirements document common to one group is configured first
Outer shell（Temperature control tank）, separately it is configured with cooling circulating water machine（Model lx60）Thermostatic control, LED simulation are carried out to the water in outer shell
The light application time of fish under natural ecological environment, oxygen pump（SB-948）Aeration aerating is carried out to testing water in water vat.
The regulation and control pH units include；Fish jar, pH probes, pH controllers, peristaltic pump, acid solution bucket, lye tank, liquid drop
Feeder apparatus.Wherein：
PH value in pH probe detection fish jars, the signal connect pH/ORP electrode signal lines center by particular cable line
Line, pH value is sensed into pH controllers and including on display screen 2-1.
In use, pH controllers can be set pH bound alarming values, its pH measurement range is 0.00-14.00, fish it is suitable
Life pH scopes are 6.70-8.50, and for the toxicity test of fish, pH control ranges can set 6.00-9.00.According to test requirements document
It is 7.85 to set upper limit alarm value, and lower limit alarming value is 7.75, and bound alarm return difference is 0.05, and making pH regulations, control exists as far as possible
7.80, its pH excursion is 7.80 ± 0.05, and the measurement accuracy of the pH controllers is 0.01, when pH reaches the upper limit, OUT1
The actuating of relay, H indicator lamps are bright, and acid solution can be in peristaltic pump（Flow-controllable）In the presence of be added dropwise, when pH drops to 7.80, relay
Device is closed, and peristaltic pump is out of service；When pH reaches lower limit, OUT2The actuating of relay, L indicator lamps are bright, and alkali lye can be in peristaltic pump
（Flow-controllable）In the presence of be added dropwise, when pH rises to 7.80, cut-off, peristaltic pump is out of service.
Peristaltic pump constantly extracts decoction from acid solution bucket or lye tank according to the needs of experiment and is added dropwise to liquid Dropping feeder, and
Peristaltic pump has the function of flow indication, flux modification, and controllable acid ＆ alkali liquid is stably slowly added dropwise, and steady state accuracy is high.
Acid solution bucket, lye tank can be set multiple outlets and be connected with multiple peristaltic pumps, can be achieved with the confession to multiple fish jars
Answer, reduce the occupancy in space.
Liquid Dropping feeder, the liquid Dropping feeder is interior to be arranged including Bubbled stone, the acid solution pipe of the blast pipe containing acid solution, containing alkali lye
The alkali liquor pipe of tracheae and two layers of polyhedron empty ball, the acid solution mouth of pipe and the alkali lye mouth of pipe are fixed by corrosion-resistant fish silk thread through soda acid liquid pipe
On Bubbled stone, two layers of polyhedron empty ball is wrapped up in outside, when oxygen pump operation, bubble is continually emerged from Bubbled stone, and by
The acid solution or alkali lye that regulation and control pH units pump out efficiently are incorporated in experiment water under the drive of bubble by two layers of polyhedron empty ball.
Under device effect, effectively shorten acid ＆ alkali liquid and test the time of fusion of water, the feedback for making pH pop one's head in is more accurate, reduces
Due to error caused by local pH and overall pH difference, make device sensitiveer, meet the technical requirements for constantly monitoring regulation.
Regulation and control pH units are preferably combined together by the device with toxicity test unit simultaneously.
Toxicity test unit includes：Fish jar, outer shell, framework, cooling circulating water machine, LED, oxygen pump.Wherein,
Fish jar, on framework lower level floor inner face according to experiment need set requirement, general toxicity experiment need 6~
10 experimental groups, every group three parallel, and each experimental group has 3 fish jars in same outer shell, altogether 6~10 outer shells, to protect
Confirmatory test is accurate, and 8 experimental groups are required when generally testing, and 3 fish jars are an experimental group, altogether 24 fish jars, each experiment
Group is in same outer shell, 8 outer shells altogether.
Cooling circulating water machine, using original-pack water pump；Power saving, noise are low；Accuracy ± 1 DEG C, 5 DEG C~35 DEG C of control range；
It is connected with outer shell, configures in framework first layer（Below central dividing plate）.Water adjusts temperature by cooling circulating water machine, in outer shell
Circulation.Different temperatures is kept for different fingerlings, general cold water fish temperature is maintained at 12 DEG C~18 DEG C, and warm water fish temperature is maintained at
20 DEG C~28 DEG C.
LED is arranged below in the central dividing plate of the framework, and the light under nature is simulated by the length of control time
According to change, the survival condition of test fish is set more to press close to real natural water area environment.
Oxygen pump, configure in the framework second layer（Above central dividing plate）, carry out the supply of oxygen, general cold water fish dissolving
Oxygen requirement is required in more than 4mg/L in more than 5mg/L, warm water fish dissolved oxygen.
For the utility model when specifically used, the binding post of pH probes must keep high level of cleanliness to dry, to prevent from drawing
The terminal shortcircuit of line two, it can be cleaned and be dried up with absolute alcohol, sensing glass ball bubble in front end can not contact with hard thing.PH probes make for a long time
With passivation can be produced, low-response is thereby resulted in, reading is forbidden, so periodic cleaning and demarcation are needed, to ensure accurately to measure
Value and the maintenance normal longtime running of device.
When specifically used, pH probes must be entered the utility model with the standard buffer solution of known pH/ORP values before measuring
Rower is determined, and standard buffer solution pH value selected by the experiment is 4.01 and 9.18, and working environment is 0 DEG C -50 DEG C, is carrying out demarcating preceding
PH probes are cleaned up with distilled water, and are blotted with filter paper, and ready pH buffer solutions are poured into clean beaker respectively, first
PH is popped one's head in immerse to stir in acid solution and stood, starts to demarcate after the instrument numerical stability of pH controllers 2, acid buffer demarcation knot
PH must be popped one's head in after beam and demarcate alkali buffer solution again after cleaning.
Peristaltic pump 3,5 constantly extracts decoction from acid solution bucket 4 or lye tank 6 according to the needs of experiment and is added dropwise to liquid dropwise addition dress
7 are put, and peristaltic pump 3,5 has flow indication, the function of flux modification, controllable acid ＆ alkali liquid is stably slowly added dropwise, and stability is good,
Precision is high.
Acid and alkali-resistance, corrosion resistant silicone tube, acid solution blast pipe 13 can be used in the conduit for connecting each instrument of control ph unit
Have the function that to prevent liquid from flowing back under the pressure of bubble with alkali lye blast pipe 14, make acid ＆ alkali liquid one-way flow, be also unlikely to
Peristaltic pump 3,5 is damaged, acid solution blast pipe 13, alkali lye blast pipe 14 are connected between acid solution pipe 11, alkali liquor pipe 12 with three-way connection.
In the present embodiment, fish jar 8 is made of long × high × a width of 49cm × 60cm × 29cm clear glass, in every cylinder
It is put into the deep testing liquids of 15cm（Water i.e. to be tested）, meet that the load of every liter of testing liquid is less than the height of 1g and testing liquid
Requirement of the degree not less than 15cm.
In the present embodiment, the oxygen pump 16 is available for the Bubbled stone in multiple fish jars to use, and sufficient oxygen, root are provided for it
According to test requirements document, experiment oxygen in water concentration is kept, saturation dissolved oxygen concentration is 66% in water during more than 19 DEG C.
It is noted that above-mentioned, provide is only embodiment, is to be used to describe specific implementation situation of the present utility model, and
Be not intended to limit the scope of protection of the utility model, it is every using made by equivalent or equivalence replacement means in itself with
Technical solutions of the utility model identical technical scheme, belongs to the scope of protection of the utility model.
It should be apparent that the utility model has following advantageous effects compared with prior art more than：Increase
Add regulation and control pH units to carry out machine adjustments pH, both avoided waste of the regulation on personnel time manually, and improved and controlled in pH again
Precision in system.Understood according to existing testing equipment, pH changes are more frequent during original toxicity test of fishes, extremely unstable
It is fixed, limited by operating personnel's number, be only capable of adjusting pH two daily to three times, spend more than one hours time every time, greatly wave
It is labor intensive, and the frequent change of pH experimental conditions can influence result of the test, cause test error；The implementation of regulation and control pH units can rise
To the effect for constantly monitoring regulation, the change of experimental result brought because pH is unstable is avoided, increases the accuracy of test data
With reliability, while more accurately and stably for research water pollution and quality of water environment important evidence is provided.Through on the spot apply and
Measurement, save the time, operating efficiency improves more than 2 times, and the degree of accuracy reaches more than 99%, and achieves through repetition test identical
Or close result, show it is safe to use, it is reliable and stable, and non-environmental-pollution, energy-conserving and environment-protective, economic and social benefit show
Write.
Claims (9)
1. a kind of toxicity test device of fishes of regulation and control pH value, including framework, regulation and control pH value unit and toxicity test unit, it is special
Sign is that described regulation and control pH value unit is, including pH probes（1）With mounted in framework（18）Central dividing plate（18-1）PH above
Controller（2）, lye tank, acid solution bucket and peristaltic pump, pH controllers（2）An output end connect the first peristaltic pump（3）, pH controls
Another output end of device processed connects the second peristaltic pump（5）, the first peristaltic pump（3）With acid solution bucket（4）It is connected, the second peristaltic pump
（5）Same lye tank（6）It is connected, pH probes（1）It is connected with the input of pH controllers, and stretches into fish jar（8）It is interior；Described poison
Property test unit include be mounted in framework（18）Outer shell on the inner face of bottom（17）With at least one fish jar in outer shell（8）,
In framework by outer shell（18）Equipped with the cooling circulating water machine being connected with outer shell on inner bottom surface（19）, fish jar is built with liquid dropwise addition
Device（7）, fish jar top is in dividing plate（18-1）It is upper below that illuminating lamp is housed（20）, liquid Dropping feeder（7）Through curing by oxygen therapy moccasin pipe
（10）With mounted in dividing plate（18-1）On oxygen pump（16）It is connected；Described liquid Dropping feeder includes Bubbled stone（9）, it is double-deck
Hollow ball（15）, acid solution pipe（11）And alkali liquor pipe（12）, acid solution pipe（11）And alkali liquor pipe（12）Lower end stretch into double-layer hollow ball
（15）In center, double-layer hollow ball（15）Built with Bubbled stone（9）, acid solution pipe（11）With the first peristaltic pump（3）It is connected, alkali lye
Pipe（12）With the second peristaltic pump（5）It is connected, acid solution pipe（11）It is upper that acid solution blast pipe is housed（13）, alkali liquor pipe（12）It is upper that alkali is housed
Liquid blast pipe（14）, pH controllers（2）, the first peristaltic pump（3）, the second peristaltic pump（5）, cooling circulating water machine（19）, illuminating lamp
（20）, oxygen pump（16）Power end and control panel（22）On power switch be connected, power switch is inserted through wire and power supply
Head（23）It is connected.
2. the toxicity test device of fishes of regulation and control pH value according to claim 1, it is characterised in that described outer shell（17）
For the hollow cuboid of channel-shaped, its volume is at least the volume of 3 fish jars.
3. the toxicity test device of fishes of regulation and control pH value according to claim 1, it is characterised in that described illuminating lamp
（20）For LED.
4. the toxicity test device of fishes of regulation and control pH value according to claim 1, it is characterised in that described pH controllers
（2）There is the display for showing pH value model CT-6658, front portion（2-1）, pH probe models CT-1001, first wriggles
Pump（3）, the second peristaltic pump（5）Model is BT100-2J, and oxygen pump is model SB-948 fish pond oxygen increasing machine.
5. the toxicity test device of fishes of regulation and control pH value according to claim 1, it is characterised in that the acid solution pipe（11）
Lower port and alkali liquor pipe（12）Lower port be fixed on Bubbled stone through tube wall by corrosion-resistant fish silk thread（9）On, two are wrapped up in outside
Layer polyhedron empty ball（15）.
6. the toxicity test device of fishes of regulation and control pH value according to claim 1, it is characterised in that described pH controllers
With on the cable of pH probe connections fish jar is tied up to around equipped with iron wire, iron wire（8）On the framework of top.
7. the toxicity test device of fishes of regulation and control pH value according to claim 1, it is characterised in that described framework is aluminium
Two layers of cube that alloy square pipe is welded.
8. the toxicity test device of fishes of regulation and control pH value according to claim 1, it is characterised in that described acid solution exhaust
Pipe（13）, alkali lye blast pipe（14）With acid solution pipe（11）, alkali liquor pipe（12）Between connected using three-way connection.
9. the toxicity test device of fishes of regulation and control pH value according to claim 1, it is characterised in that the Bubbled stone（9）
A diameter of 40mm, high 13mm, polyhedron empty ball（15）Internal layer diameter 50mm, outer layer diameter 76mm, polyhedron empty ball（15）Edge
One of reinforcing ring of whole Zhou Changyou, ball respectively have 12 ball clacks up and down, are arranged along central shaft in radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721179133.5U CN207198680U (en) | 2017-09-14 | 2017-09-14 | A kind of toxicity test device of fishes of regulation and control pH value |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721179133.5U CN207198680U (en) | 2017-09-14 | 2017-09-14 | A kind of toxicity test device of fishes of regulation and control pH value |
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| CN207198680U true CN207198680U (en) | 2018-04-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107346143A (en) * | 2017-09-14 | 2017-11-14 | 郑州大学 | A kind of toxicity test device of fishes of regulation and control pH value |
| CN110231449A (en) * | 2019-07-03 | 2019-09-13 | 上海海洋大学 | A kind of circulation Ecology acute toxicity test system |
-
2017
- 2017-09-14 CN CN201721179133.5U patent/CN207198680U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107346143A (en) * | 2017-09-14 | 2017-11-14 | 郑州大学 | A kind of toxicity test device of fishes of regulation and control pH value |
| CN110231449A (en) * | 2019-07-03 | 2019-09-13 | 上海海洋大学 | A kind of circulation Ecology acute toxicity test system |
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