CN212864297U

CN212864297U - Laboratory is with oxygen-free water preparation facilities

Info

Publication number: CN212864297U
Application number: CN202021617385.3U
Authority: CN
Inventors: 袁和忠; 方昊; 于江华; 蔡溢玮; 邰子秋
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-02
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a laboratory is with oxygen-free water preparation facilities, including water tank and apron, the water tank is made by transparent organic glass, and the water tank upper end is uncovered, and tank lid board lid is uncovered sealed on the water tank, is equipped with intake pipe and outlet duct on the tank lid board, is equipped with admission valve and air outlet valve on water tank intake pipe and the outlet duct respectively, and the water tank intake pipe passes through the trachea and is connected with the nitrogen cylinder, and the intake pipe other end stretches into to the bottom in the water tank, and water tank side bottom is equipped with the oxygen-free water outlet pipe of taking the valve. The utility model discloses safety, simple structure, low cost, convenient operation, the controllable small-size aeration equipment of process can not only provide the oxygen-free of reliable quality for the experiment, can regulate and control the admission speed moreover, satisfies different experiment purpose demands.

Description

Laboratory is with oxygen-free water preparation facilities

Technical Field

The utility model relates to a laboratory appliance technical field, a laboratory is with oxygen-free water preparation facilities specifically says so.

Background

The existing methods for preparing the oxygen-free water mainly comprise a heating method, a chemical reagent method, a vacuum oxygen removal method and the like, and the methods have the defects of unobvious oxygen removal effect, complex process, high danger coefficient of the heating method, high cost of the chemical reagent method and the vacuum oxygen removal method, poor process controllability, possibility of introducing unrelated substances and the like.

The nitrogen introducing method is a method with simple equipment, convenient preparation and low cost, and the prior method for directly introducing nitrogen into water or simultaneously assisting in heating has the problems of high gas consumption and poor deoxidizing effect.

Disclosure of Invention

The utility model aims at providing a laboratory is with no oxygen water preparation facilities to the not enough among the above-mentioned prior art.

The utility model aims at realizing through the following technical scheme:

the utility model provides a laboratory is with oxygen-free water preparation facilities, includes water tank and apron, the water tank is made by transparent organic glass, and the water tank upper end is uncovered, the apron lid is in with uncovered sealed on the water tank, be equipped with intake pipe and outlet duct on the apron, be equipped with admission valve and air outlet valve on intake pipe and the outlet duct respectively, the intake pipe passes through the trachea and is connected with the nitrogen cylinder, and another termination air duct of intake pipe stretches into to the bottom in the water tank, water tank side bottom is equipped with the oxygen-free water outlet pipe of taking the valve.

The utility model discloses in the further design, the uncovered edge of above-mentioned water tank is the slope, the apron edge also be with the slope of the uncovered edge looks adaptation of water tank.

The utility model discloses in the further design, still be equipped with the measuring aperture on the above-mentioned apron, the measuring aperture stopper has sealing rubber stopper.

The utility model discloses in the further design, still be equipped with water level volume scale mark and highest water level line on the above-mentioned water tank box.

The utility model discloses following outstanding beneficial effect has:

the utility model provides a device for preparing oxygen-free water in a laboratory. The device utilizes the upper nitrogen atmosphere to isolate air from entering in the aeration process of the closed system, has higher deoxidization effect than that of a common aeration method, is simple to operate, does not need heating, is safe and reliable, has low energy consumption, can adjust the aeration gas flow through a valve, visually controls the deoxidization degree and can prevent the evaporation loss of a water sample; meanwhile, the device can be used for aeration and deoxidation treatment of the small device, and the anaerobic requirements of part of small equipment in the experimental process are met. Not only can provide oxygen-free (oxygen content-0 mg L) with reliable quality for experiment^-1) Moreover, the air inlet speed can be regulated and controlled, different experiment purpose requirements are met, meanwhile, anaerobic treatment can be carried out on small-sized experimental equipment, the influence of oxygen on the experimental process is avoided, and development of special experimental projects and reliability of results are facilitated.

Drawings

FIG. 1 is a side view of an apparatus for producing oxygen-free water for a laboratory in an example;

FIG. 2 is a schematic view showing the structure of an apparatus for producing oxygen-free water for a laboratory in the example;

in the figure, 1-a water tank, 2-a cover plate, 3-an air inlet valve, 4-an air outlet valve, 5-a measuring hole, 6-an oxygen-free water outlet pipe and 7-an air inlet pipe.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

Referring to fig. 1, the utility model provides a laboratory is with oxygen-free water preparation facilities, water tank 1 and apron 2, water tank 1 is made by transparent organic glass, thickness 0.5cm, wholly be square column or cylindrical, highly with no more than 30 cm, width or diameter are no more than 10 cm for suitable, water tank 1 upper end is uncovered, the slope is prepared to the port, the lower extreme seals leakagely, apron 2 lid will be uncovered sealed on water tank 1, be equipped with intake pipe 7 and outlet duct on apron 2, be equipped with admission valve 3 and air outlet valve 4 on intake pipe 7 and the outlet duct respectively, intake pipe 7 passes through the trachea and is connected with the nitrogen cylinder, another termination air duct of intake pipe 7 stretches into to the bottom in the water tank 1, water tank 1 side bottom is equipped with the oxygen-free water outlet pipe 6 of taking the.

The volume and the height of the water tank are marked on the outer side of the water tank, when oxygen is removed, a proper amount of pure water is added into the water tank 1, the height does not exceed the highest water level, and part of space is reserved as a gas storage area to store nitrogen in the aeration process so as to isolate oxygen permeation and keep an anaerobic state; the cover plate 2 is made of an organic glass plate, the diameter of the cover plate is equal to that of the water tank 1, meanwhile, the lower part of the cover plate is made into a gradient shape, the gradient and the upper port of the water tank 1 are mutually nested, so that the cover plate 2 is sealed with the upper port of the water tank when being horizontally placed, and the gas can be effectively prevented from overflowing rapidly. Evenly lay 3 round holes on the apron 2, wherein each device ball valve of two round holes, 3 upper ends of admission valve are used for connecting intake pipe 7 and insert nitrogen gas, and the lower extreme links the air duct and leads to nitrogen gas to 1 lower extreme of water tank, utilizes the nitrogen bubble to the water sample aeration deoxidation, and the permeable transparent wall of aeration in-process bubble size of observing the aeration process adjusts the ball valve, prevents that the air input flow is too big. The gas outlet valve 4 is used for regulating and controlling the gas content in the water tank through the regulating ball valve and discharging overflowed nitrogen, so that the middle upper gas storage area of the water tank 1 is in a nitrogen saturated state, the water tank 1 is kept in a low-oxygen or anaerobic state, and the oxygen content in the water sample is reduced; the rest holes are sealed by rubber plugs when being not used as the measuring holes 5, the oxygen measuring instrument can be opened periodically during the aeration process to measure the oxygen content of the water sample in the water tank 1, and if the oxygen content does not reach the required oxygen content after the measurement, the measuring holes 5 can be sealed to continue aeration until the oxygen content is lower than the required oxygen content. The oxygen-free water outlet pipe 6 is positioned at the bottom of the water tank, the ball valve controls the switch, and after the deoxidation is completed, the knob of the oxygen-free water outlet pipe 6 is opened, so that oxygen-free water can be discharged to the water receiving device for the required experiment.

When the oxygen-free aeration tank is used, the cover plate 2 and the water tank 1 are attached to each other hermetically, during oxygen removal, a proper amount of pure water is added into the water tank 1, the height of the pure water is not more than the highest water level, and part of space reserved in the aeration process is used as a gas storage area to store nitrogen so as to isolate oxygen permeation. The upper end of the upper air inlet valve 3 of the cover plate 2 is used for connecting an air inlet pipe 7 to be connected with nitrogen, the lower end of the upper air inlet valve is connected with an air guide pipe to guide the nitrogen to the lower end of the water tank, nitrogen bubbles are used for aerating and deoxidizing a water sample, the size of bubbles in the aeration process can be observed through a transparent wall in the aeration process, and a ball valve is adjusted to prevent overlarge air inlet flow. The gas outlet valve 4 is used for regulating and controlling the gas content in the water tank through the regulating ball valve and discharging overflowed nitrogen, so that the middle upper gas storage area of the water tank 1 is in a nitrogen saturated state, the water tank 1 is kept in a low-oxygen or anaerobic state, and the oxygen content in the water sample is reduced; when the measuring hole 5 is not used, the rubber plug is used for sealing, the oxygen content of the water sample in the water tank 1 can be measured by the oxygen measuring instrument periodically by opening in the aeration process, and if the required oxygen content is not reached after the measurement, the measuring hole 5 can be sealed for continuing aeration until the required oxygen content is met. After the deoxidation is finished, the knob of the oxygen-free water outlet pipe 6 is opened, and oxygen-free water can be discharged to the water receiving device for the required experiment. If the aeration deoxidation of small-sized laboratory instruments is needed, the device can be placed into the water tank 1, pure water is added, and the aeration deoxidation is carried out for standby according to the method.

If the aeration deoxidation of small-sized laboratory instruments is needed, the device can be placed into the water tank 1, pure water is added, and the aeration deoxidation is carried out for standby according to the method.

Above is the utility model discloses a preferred embodiment, all rely on the utility model discloses the change that technical scheme made, produced functional action does not surpass the utility model discloses during technical scheme's scope, all belong to the utility model discloses a protection scope.

Claims

1. The utility model provides a laboratory is with oxygen-free water preparation facilities, a serial communication port, includes water tank (1) and apron (2), water tank (1) is made by transparent organic glass, and water tank (1) upper end is uncovered, apron (2) lid is in with uncovered sealed on water tank (1), be equipped with intake pipe (7) and outlet duct on apron (2), be equipped with admission valve (3) and air outlet valve (4) on intake pipe (7) and the outlet duct respectively, intake pipe (7) are connected with the nitrogen cylinder through the trachea, and intake pipe (7) another termination air duct stretches into bottom in water tank (1), water tank (1) side bottom is equipped with oxygen-free water outlet pipe (6) of taking the valve.

2. The laboratory oxygen-free water preparation device according to claim 1, wherein the open edge of the water tank (1) is a slope, and the edge of the cover plate (2) is also a slope adapted to the open edge of the water tank (1).

3. The oxygen-free water preparation device for the laboratory according to claim 1, wherein the cover plate (2) is further provided with a measuring hole (5), and the measuring hole (5) is plugged with a sealing rubber plug.

4. The laboratory oxygen-free water preparation device according to claim 1, wherein the water tank (1) is further provided with water level volume scale marks and a highest water level line on the tank body.