Fuming cupboard convenient to observe

Abstract

The utility model discloses a fuming cupboard convenient to observe, and belongs to the technical field of fine chemical engineering. A fuming cupboard convenient to observe comprises a cupboard body, a partition plate is fixedly connected in the cupboard body, an acid removal box and an alkali removal box are arranged on the side, away from an opening, of the partition plate, the upper end of the acid removal box communicates with the lower end of one side of the alkali removal box through a communicating pipe, and motors are arranged at the upper end of the acid removal box and the upper end of the alkali removal box correspondingly; the cabinet body is provided with a motor, the output end of the motor is fixedly connected with stirring rods, the two stirring rods are respectively positioned in the acid removal box and the alkali removal box, one side of the inner wall of the acid removal box and one side of the inner wall of the alkali removal box are provided with pH monitors, and the cabinet body is provided with a display screen matched with the pH monitors for use. The solution is uniformly stirred through the stirring rod, and the pH value of the solution is monitored in real time by using the pH monitor, so that the solution is conveniently replaced in time, and the purification effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fume hood in fine chemical industry, concretely relates to a fume hood convenient to observe. BACKGROUND

[0002] Fume hood is a large equipment of chemical laboratory, is used to reduce the contact of experimenter and harmful gas, fume hood is the first barrier of protecting personnel from the harm of toxic chemical smoke, it can be used as important safety backup equipment, like effectively discharging harmful gas when chemical smoke, dust and toxic gas are produced in the process of chemical experiment, protecting the staff and laboratory environment.

[0003] Fume hood needs to purify harmful gas before discharging, the existing fume hood removes acid or alkaline material in gas through acid-base neutralization reaction, because the solution is stationary, when gas is passed into the solution to react, the gas can only react with the liquid on the side of passing in, leading to low utilization rate of solution, and because the acid-base value of solution cannot be known, the solution cannot be replaced in time, leading to reduced purification effect, therefore, the utility model is provided. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem in overcoming the prior art's deficiencies, providing a fume hood convenient to observe that can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problems, the basic idea of the technical scheme of the utility model is: a fume hood convenient to observe, including the cabinet, the cabinet is internally provided with fixedly connected with the partition, the partition is provided with acid removal tank, alkali removal tank on the side away from the opening, the upper end of acid removal tank is connected with the lower end of one side of alkali removal tank through the communicating pipe, the upper end of acid removal tank, alkali removal tank is provided with motor, the output of motor is fixedly connected with stirring stick, two stirring sticks are located in acid removal tank, alkali removal tank respectively, the inner wall of acid removal tank, alkali removal tank is provided with pH monitor on one side, the cabinet is provided with display screen used in cooperation with pH monitor, the acid removal tank, alkali removal tank is connected with liquid inlet pipe, liquid outlet pipe, the upper end of alkali removal tank is connected with exhaust pipe, the cabinet is internally provided with exhaust assembly.

[0006] Further, the exhaust assembly includes a gas collection box, the exhaust assembly includes a gas collection box, the gas collection box is located on the partition, the partition and the acid removal tank are provided with a gas suction pump, the gas suction pump is connected with the gas collection box and the acid removal tank through the gas pipe.

[0007] In order to facilitate the improvement of exhaust effect, further, the gas collecting box is symmetrically arranged, two gas collecting boxes are connected with the gas inlet end of the air pump through a tee pipe, and the tee pipe is internally provided with a first electromagnetic valve and a second electromagnetic valve.

[0008] In order to avoid liquid remaining in the liquid inlet pipe, further, the liquid inlet pipe is arranged to be inclined.

[0009] In order to facilitate the prevention of gas from being discharged through the liquid inlet pipe, further, a cover plate is hingedly connected to the liquid inlet pipe of the acid removal tank.

[0010] In order to facilitate the placement and taking of articles and experimental equipment, further, a placement groove is formed in the cabinet, and a rotating plate is hingedly connected to the opening of the placement groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects: compared with the existing fume hood, the utility model uniformly stirs the solution through the stirring rod, and utilizes the pH monitor to monitor the pH value of the solution in real time, so that the solution can be replaced in time, and the purification effect is effectively improved.

[0012] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] In the drawings:

[0014] Figure 1 Structure diagram of the fume hood convenient to observe Figure 1 ;

[0015] Figure 2 Structure diagram of the fume hood convenient to observe Figure 2 ;

[0016] Figure 3 Sectional view of the fume hood convenient to observe Figure 1 ;

[0017] Figure 4 Sectional view of the fume hood convenient to observe Figure 2 ;

[0018] Figure 5 Fume hood convenient to observe Figure 4 of the utility model discloses an enlarged structure diagram.

[0019] In the figure: 1, cabinet; 101, partition; 102, display screen; 103, rotating plate; 2, acid removal tank; 201, communication pipe; 3, alkali removal tank; 301, exhaust pipe; 4, air pump; 401, gas collection box; 5, motor; 501, stirring rod; 6, liquid inlet pipe; 601, cover plate; 7, pH monitor; 8, liquid outlet pipe; 9, three-way pipe; 901, first electromagnetic valve; 902, second electromagnetic valve. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0021] Embodiment 1:

[0022] Reference Figures 1-5 A ventilation cabinet convenient to observe, including cabinet 1, cabinet 1 is internally provided with fixedly connected with partition 101, the side away from the opening of partition 101 is provided with acid removal tank 2, alkali removal tank 3, the upper end of acid removal tank 2 and the lower end of one side of alkali removal tank 3 are connected through communication pipe 201, the upper end of acid removal tank 2, alkali removal tank 3 is provided with motor 5, the output end of motor 5 is fixedly connected with stirring rod 501, two stirring rods 501 are located in acid removal tank 2, alkali removal tank 3 respectively, the inner wall of acid removal tank 2, alkali removal tank 3 is provided with pH monitor 7, cabinet 1 is provided with display screen 102 used in cooperation with pH monitor 7, acid removal tank 2, alkali removal tank 3 is connected with liquid inlet pipe 6, liquid outlet pipe 8, the upper end of alkali removal tank 3 is connected with exhaust pipe 301, cabinet 1 is provided with exhaust assembly;

[0023] The exhaust assembly includes gas collection box 401, gas collection box 401 is located on partition 101, partition 101 and acid removal tank 2 are provided with air pump 4, the air inlet and outlet end of air pump 4 is connected with gas collection box 401, acid removal tank 2 through air pipe.

[0024] When the gas generated in the experiment process needs to be discharged, the air pump 4 works, the gas box 401 delivers the gas to the acid removal tank 2, the alkaline solution in the acid removal tank 2 reacts with the acidic substance to generate salt and water, and then removes the acidic substance in the gas, the gas continuously rises in the solution, separates from the solution and is placed above the solution, and enters the alkali removal tank 3 through the connecting pipe 201, at this time, the alkaline substance reacts with the acidic solution in the alkali removal tank 3 to remove the alkaline substance in the gas, and the gas removed of the acidic substance and the alkaline substance is discharged through the exhaust pipe 301. When the exhaust gas is purified, the motor 5 works, the stirring rod 501 slowly and uniformly stirs the solution in the acid removal tank 2 and the alkali removal tank 3, and the pH monitor 7 detects the solution in the acid removal tank 2 and the alkali removal tank 3 in real time. The data monitored is displayed on the display screen 102, and the operator can observe the pH value of the solution on the display screen 102. When the value is close to the neutralization value, the solution is discharged through the liquid discharge pipe 8, and new solution is added into the acid removal tank 2 and the alkali removal tank 3 through the liquid inlet pipe 6. Compared with the existing fume hood, the solution is uniformly stirred by the stirring rod 501, and the pH value of the solution is monitored in real time by the pH monitor 7, so that the solution can be replaced in time, and the purification effect is effectively improved.

[0025] Example 2:

[0026] Referring to Figures 1-5 A fume hood convenient to observe, basically same as example 1, further, the gas box 401 is symmetrically arranged, the two gas boxes 401 are connected with the gas inlet end of the air pump 4 through the three-way pipe 9, and the three-way pipe 9 is internally provided with a first electromagnetic valve 901 and a second electromagnetic valve 902.

[0027] The liquid inlet pipe 6 is inclinedly arranged to avoid bacteria breeding in the liquid inlet pipe 6.

[0028] A cover plate 601 is hingedly connected to the liquid inlet pipe 6 of the acid removal tank 2 to cover the liquid inlet pipe 6, so as to avoid the gas in the acid removal tank 2 being discharged from the liquid inlet pipe 6 and affecting the purification effect.

[0029] A placing groove is formed in the cabinet 1, and a rotating plate 103 is hingedly connected to the opening of the placing groove in a symmetrical manner, so that articles and experimental apparatuses can be placed in the placing groove, and the articles and experimental apparatuses are convenient to place and take.

[0030] The above only describes preferred embodiments of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with reference to the preferred embodiments, it is not intended to limit the present application.

Claims

1. A fume hood with easy observation, characterized in that, Including the cabinet (1), the cabinet (1) is provided with a fixed connection with the partition (101), the partition (101) is away from the side of the opening and is provided with an acid removal tank (2), an alkali removal tank (3), the upper end of the acid removal tank (2) and the lower end of the alkali removal tank (3) are communicated by the communication pipe (201), the upper end of the acid removal tank (2) and the alkali removal tank (3) is provided with a motor (5), the output end of the motor (5) is fixedly connected with a stirring rod (501), two stirring rods (501) are located in the acid removal tank (2) and the alkali removal tank (3) respectively, the inner wall of the acid removal tank (2) and the alkali removal tank (3) is provided with a pH monitor (7), the cabinet (1) is provided with a display screen (102) used in cooperation with the pH monitor (7), the acid removal tank (2) and the alkali removal tank (3) are all connected with a liquid inlet pipe (6) and a liquid outlet pipe (8), the upper end of the alkali removal tank (3) is connected with an exhaust pipe (301), the cabinet (1) is provided with an exhaust assembly.

2. A fume hood for easy observation according to claim 1, wherein The exhaust assembly includes a gas collection box (401), the gas collection box (401) is located on the partition (101), the partition (101) and the acid removal tank (2) are provided with a gas suction pump (4), the gas suction pump (4) is connected with the gas collection box (401) and the acid removal tank (2) through the gas pipe.

3. A fume hood for easy observation according to claim 2, wherein The gas collection box (401) is symmetrically arranged, two gas collection boxes (401) are connected with the gas suction pump (4) through the three-way pipe (9), the three-way pipe (9) is provided with a first electromagnetic valve (901) and a second electromagnetic valve (902).

4. A fume hood for easy observation according to claim 1, wherein The liquid inlet pipe (6) is inclined.

5. A fume hood for easy observation according to claim 1, wherein The cover plate (601) is hingedly connected to the liquid inlet pipe (6) of the acid removal tank (2).

6. A fume hood for easy observation according to claim 1, wherein The cabinet (1) is provided with a placing groove, and the opening of the placing groove is hingedly connected with a rotating plate (103).

Images