CN104391089A - Water-flowing type fish toxicity test system - Google Patents

Abstract

The invention provides a flow-type fish toxicity test system, which includes a fish water temperature environment regulating device and a fish toxicity test device; the fish water temperature environment regulating device is a room temperature regulating device for adjusting the indoor environment temperature; the fish toxicity test The device includes: at least one ecological fish tank arranged in layers from low to high in the vertical direction, a solution mixer connected one-to-one with the ecological fish tank through the diversion tube, and a drug storage device connected with the solution mixer through the diversion tube one-to-one. bottle and the water supply tank connected to the solution mixer through the guide tube; the guide tube connected to the drug storage bottle and the solution mixer is provided with a first flow controller for adjusting the concentration of the drug solution, and the first flow controller connected to the water supply tank and the solution mixer A second flow controller for adjusting the water flow is arranged on the guide pipe. The invention has no pump, no direct heating, no mechanical friction to generate heat, reduces the influence on medicine and dissolved oxygen, and improves the accuracy and reliability of test results.

Description

Flowing water fish toxicity test system

technical field

The invention relates to the field of test equipment, in particular to a flowing water fish toxicity test system.

Background technique

At present, the traditional flow-type fish toxicity test devices in China basically use a large number of peristaltic pumps, heaters and agitators. During the use of these devices, due to mechanical friction, pressure or direct heat generation, the convection of the flowing water The influence of the uncertainty of the drug ingredients or dissolved oxygen in the test results reduces the accuracy and reliability of the test results.

Contents of the invention

The object of the present invention is to provide a flow-type fish toxicity test system to solve the above-mentioned problems.

An embodiment of the present invention provides a flowing water fish toxicity test system, comprising: a fish water temperature environment adjustment device and a fish toxicity test device; the fish water temperature environment adjustment device is: a room temperature adjustment device for adjusting the indoor environment temperature The fish toxicity test device includes: at least one ecological fish tank arranged vertically from low to high layered, a solution mixer connected to the ecological fish tank by a diversion tube one by one, and a solution mixer connected by a diversion tube and a solution mixer one by one Correspondingly connected medicine storage bottle and the water supply tank connected to the solution mixer through the guide tube; the first flow controller for adjusting the concentration of the drug solution is provided on the guide tube connecting the medicine storage bottle and the solution mixer, and connected to the water supply tank A second flow controller for adjusting the water flow is arranged on the guide pipe of the solution mixer.

Further, the system also includes a lighting environment adjusting device corresponding to the ecological fish tank one by one, and the lighting environment adjusting device is arranged above the ecological fish tank.

Further, the ecological fish tank includes a water inlet end and a water discharge end, and the water inlet end and the water discharge end are respectively arranged on two opposite side walls of the ecological fish tank, and the vertical height of the water inlet end is higher than that of the water discharge end.

Further, three ecological fish tanks form a group, and the fish toxicity test device includes at least one group of ecological fish tanks. In each group, one ecological fish tank is used for carrying out a drug-free blank control experiment, and the other two ecological fish tanks are used for drug concentration gradient. group of experiments.

Further, the first flow controller and the second flow controller are silent flow controllers.

Further, the system also includes an inflow treatment device for sterilizing and filtering the water source.

Further, the influent water treatment device includes a UV processor and a first filter.

Further, the system also includes a waste water treatment device for performing ion exchange and filtration treatment on the discharged waste water.

Further, the wastewater treatment device includes an ion exchanger and a second filter.

Further, it also includes a system bracket for supporting the fish toxicity test system.

Compared with the prior art, the beneficial effect of the present invention is: the water temperature in the ecological fish tank is adjusted through the room temperature adjustment device, the fish toxicity test device adopts a vertical layered design, the liquid flow is completely carried out in a natural drop mode, and there is no pump at all. , and no direct heating is required, so there is no mechanical friction to generate heat, thereby reducing the impact on drugs and dissolved oxygen, and improving the accuracy and reliability of test results.

Description of drawings

Fig. 1 is the structural representation of flowing water type fish toxicity testing system of the present invention;

Fig. 2 is the three-dimensional structural diagram of the ecological fish tank of the flow-type fish toxicity test system of the present invention;

Fig. 3 is the plane longitudinal section view of the ecological fish tank of the flowing water fish toxicity testing system of the present invention.

Detailed ways

The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

Referring to shown in Fig. 1 to Fig. 3, Fig. 1 is the structural representation of flowing water type fish toxicity test system of the present invention; Fig. 2 is the three-dimensional structure figure of the ecological fish tank of flowing water type fish toxicity test system of the present invention; Fig. 3 is the flow water type fish toxicity test system ecological fish tank of the present invention; Plane longitudinal section view of the ecological fish tank of the fish toxicity test system.

The present embodiment provides a flowing water fish toxicity test system, comprising: a fish water temperature environment regulating device and a fish toxicity test device; the fish water temperature environment regulating device is: a room temperature regulating device for adjusting the indoor environment temperature; The quasi-toxicity test device includes: at least one ecological fish tank 1 arranged in layers from low to high in the vertical direction, a solution mixer 3 connected to the ecological fish tank 1 one by one through the guide tube 2, and mixed with the solution through the guide tube 2 The drug storage bottle 4 connected with the device 3 and the water supply tank 5 connected with the solution mixer 3 through the guide tube 2; The first flow controller 6 for the concentration, the second flow controller 7 for adjusting the water flow is provided on the guide pipe 2 connecting the water supply tank 5 and the solution mixer 3 .

The fish toxicity test system provided in this embodiment adjusts the water temperature in the ecological fish tank 1 through a room temperature regulating device. The flow controller 6 and the second flow controller 7 precisely adjust and control the flow of flowing water and drug solution delivery in the control system. The flowing water and drug solution are diluted and mixed in the solution mixer and then naturally flow into the ecological fish tank. There is no pump and no direct heating , so there is no heat generated by mechanical friction, thereby reducing the impact on drugs and dissolved oxygen, and improving the accuracy and reliability of test results. The effect of power consumption.

The ecological fish tank 1 in the present embodiment can adopt 5L volume, acrylic material, has the fish tank of overflow design, and fish tank has water inlet 9 and discharge end 10, and water inlet 9 and discharge end 10 are respectively arranged on the bottom of ecological fish tank 1 Two opposite side walls, the vertical height of the water inlet end 9 is higher than the vertical height of the discharge end 10, the flowing water can form a flow state in the cylinder, and the water inlet and outlet are convenient and labor-saving. Wherein, three ecological fish tanks 1 form a group, and the fish toxicity test device includes at least one group of ecological fish tanks, and in each group, one ecological fish tank 1 is used for carrying out a drug-free blank control experiment, and the other two ecological fish tanks 1 are used for adding The experiment of drug concentration gradient group. The number of ecological fish tanks 1 can be increased according to the needs of the experimental group, but it needs to be increased in groups, that is, the number of increased fish tanks should be a multiple of 3.

In this embodiment, the diversion pipe 2 for water supply can be made of aluminum-plastic composite pipe, and the diversion pipe 2 for liquid medicine supply can be made of acid, alkali and corrosion-resistant pipe.

The solution mixer 3 in the present embodiment can adopt 800ml, glass material, become funnel-shaped, the container that has overflow at 50mm from the upper edge of the funnel.

The medicine storage bottle 4 in the present embodiment can adopt the brown screw-top glass bottle of 5000ml, has PP screw cap and PP pouring ring.

The water supply tank 5 in this embodiment can adopt a standard volume of 40L, and the surface junction is a 90-degree arc angle. It is made of high-quality 304 stainless steel. The tank is equipped with a liquid level controller, which has low water level automatic replenishment and high The water level automatically turns off the function of the water source switch.

The first flow controller 6 and the second flow controller 7 in the present embodiment can adopt 0～2000ml/min, can realize the flow controller that the dilution ratio of medicine solution and influent is 1:3～200 (flow ratio) . The water flow adjustment range of the second flow controller 7 can be set to 1-2000ml/min, and the flow adjustment range of the drug solution of the first flow controller 6 can be set to 1-2000ml/min.

The room temperature adjusting device in this embodiment can use a laboratory air-conditioning system to control and adjust the environment temperature, and control the environment temperature at 5-35° C. to provide a stable temperature for the test fish.

In this embodiment, the system can also be provided with a lighting environment adjustment device 8 corresponding to the ecological fish tank one by one. The lighting environment adjustment device 8 is arranged on the top of the ecological fish tank 1 for controlling the light intensity. The light brightness is adjustable, and the switch can be adjusted. Timing, simulating the diurnal light changes in the natural environment, so that the test fish live in a real water environment closer to the required one. Lighting environment adjustment device 8, every three groups, each group corresponds to one group of ecological fish tanks, guarantees that the lighting of the ecological fish tanks in each group is the same. The light brightness adjustment range of each light environment adjusting device 8 is 0～18000LX,

In this embodiment, the first flow controller 6 and the second flow controller 7 are silent flow controllers. By adopting the silent flow controller, and the system does not use peristaltic pumps, heating rods, stirrers, etc. Large equipment can achieve ultra-quiet effect, and there is no worry about any impact of noise on fish and test substances, which ensures the reliability of the test. It is an energy-saving, low-noise fish toxicity test system.

Embodiments of the present invention are in order to solve the traditional test flow-type fish toxicity test device, adopt tap water as the direct water supply source more, can not guarantee the stability and the reliability of test water source, the waste water after the test is directly discharged in the environment, to the environment The technical problem of pollution is caused. In the system, an influent treatment device for sterilizing and filtering the water supply and a wastewater treatment device for ion exchange and filtering the discharged wastewater are configured.

In this embodiment, the influent water treatment device can use a UV processor 11 and a first filter 12 . The UV processor 11 and the first filter 12 are combined to form an influent treatment system, and the influent source enters the first filter 12 and the UV processor 11 from the direction of the arrow. The water source is generally required to be tap water or laboratory central pure water, PH: 6.5-8.5, conductivity: 125-1000μs/cm, water flow ≥ 30L/h. The water quality in the system requires PH=6.5~8.5, conductivity 125~1000μs/cm. The first filter 12 can adopt a filter membrane with a pore size of 0.45 μm, which mainly filters out coarse particles and substances that are easy to scale in the incoming water, so as to protect the pipeline of the test system. Select the UV processor 11 in the 254nm wavelength range to kill harmful microorganisms in the water and protect the test fish in the ecological fish tank. By configuring the influent treatment device, it not only ensures the stability and reliability of the test water source, but also ensures the standardization of fish water flow in the ecological fish tank.

In this embodiment, the wastewater treatment device can use an ion exchanger 13 and a second filter 14 . The second filter 14 is used to remove particulate matter in the waste water, and the ion exchanger 13 is used to carry out ion exchange treatment to the waste water after the test to remove harmful ionic compounds in the waste water. After being treated by the second filter 14 and the ion exchanger 13 The waste water is discharged in the direction of the arrow. By configuring the waste water treatment device, it is ensured that the waste water discharged from the waste water outlet of the system will not cause any pollution to the environment.

In this embodiment, it also includes a system bracket 15 for supporting the fish toxicity test system. The system bracket 15 is made of 304 stainless steel, which is durable and has the functions of partitioning, layering, and power supply. It is divided into two layers horizontally and vertically. Divided into three layers. The horizontal direction is divided into two functional areas, the test area and the water treatment area. The vertical direction is respectively: the top layer distributes the water supply tank 5 and the medicine solution storage bottle 4, the middle layer distributes the solution mixer 3 and the flow controller (including the first flow controller 6 and the second flow controller 7), and the bottom layer distributes the ecological fish tank 1 and an illumination environment adjustment device 8. The partitioned and layered design not only realizes strong support for the entire system, but also facilitates management, facilitates testing, and improves testing efficiency. The support system 15 provides corresponding power supplies in each functional area, and is not equipped with a general power supply. Power requirements: Power range: AC 220V (±10%), 50Hz.

The installation conditions of the test system in this embodiment: an independent room of not less than ^20m2 , which can shade the light source, has a water source that meets the requirements, drainage pipes, and a constant temperature and humidity air conditioning system (temperature control range: 18～30±1°C, humidity control Range: 45～70±5%).

The test system of this embodiment can truly simulate the growth environment of fish in dynamic running water under natural conditions, carry out chemical fish toxicity evaluation test research, assess the bioaccumulation capacity of chemicals and identify environmental hormones (endocrine disruptors) Research on pesticide residues in the environment; special drug management and new drug efficacy trials; environmental experimental research on breeding; nutrient testing experiments, etc.

The series of detailed descriptions listed above are only specific descriptions for feasible implementations of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or implementation that does not depart from the technical spirit of the present invention All changes should be included within the protection scope of the present invention.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A flow-type fish toxicity test system is characterized in that, comprising: a fish water temperature environment regulating device and a fish toxicity test device; the fish water temperature environment regulating device is: a room temperature regulating device for regulating indoor ambient temperature device; the fish toxicity test device includes: at least one ecological fish tank arranged vertically from low to high layers, a solution mixer that is connected to the ecological fish tank through a flow guide tube one by one, and a solution mixer that is connected to the ecological fish tank through a flow guide tube The solution mixer is connected one by one to the medicine storage bottle and the water supply tank connected to the solution mixer through a guide tube; the guide tube connecting the medicine storage bottle and the solution mixer is provided with a A first flow controller for the concentration of the drug solution, and a second flow controller for adjusting the water flow is provided on the guide pipe connecting the water supply tank and the solution mixer. 2. flowing water type fish toxicity test system according to claim 1, is characterized in that, also comprises the illumination environment adjusting device corresponding to described ecological fish tank one by one, and described illumination environment adjusting device is arranged on the side of described ecological fish tank above. 3. flowing water type fish toxicity test system according to claim 2, is characterized in that, described ecological fish tank comprises water inlet and discharge end, and described water inlet and discharge end are respectively arranged on two ends of described ecological fish tank. Two opposite side walls, the vertical height of the water inlet end is higher than the vertical height of the discharge end. 4. flowing water type fish toxicity test system according to claim 3, is characterized in that, three described ecological fish tanks form a group, and described fish toxicity test device comprises at least one group of described ecological fish tanks, in each group One of the ecological fish tanks is used for the blank control experiment without drugs, and the other two ecological fish tanks are used for the experiments of the drug concentration gradient group. 5 . The flowing water fish toxicity testing system according to claim 4 , wherein the first flow controller and the second flow controller are silent flow controllers. 6. The flow-through fish toxicity test system according to any one of claims 1 to 5, further comprising an inflow treatment device for sterilizing and filtering the water supply source. 7. The flowing water fish toxicity testing system according to claim 6, wherein the influent treatment device comprises a UV processor and a first filter. 8. The flow-through fish toxicity test system according to claim 6 or 7, further comprising a waste water treatment device for performing ion exchange and filtration treatment on the discharged waste water. 9. The flowing water fish toxicity test system according to claim 8, wherein the wastewater treatment device comprises an ion exchanger and a second filter. 10 . The flow-through fish toxicity test system according to claim 9 , further comprising a system bracket for supporting the fish toxicity test system. 11 .