CN222198260U - Fume chamber capable of treating laboratory waste gas - Google Patents

Abstract

The utility model discloses a fume hood capable of treating laboratory waste gas, comprising a cabinet body, a support rod fixedly connected to the bottom of the cabinet body, a water tank fixedly connected to the inner wall of the cabinet body, a filter screen slidably sleeved inside the water tank, two symmetrically distributed air outlets fixedly connected inside the cabinet body, a fixed box fixedly connected to the right end of the cabinet body, a primary screening mechanism provided on the fixed box, and a filtering mechanism provided inside the cabinet body. The utility model designs the function of an air pump, the air pump can suck the inside of the fixed box, and a negative pressure can be formed inside the fixed box. The fixed box can absorb and collect the waste gas through a gas collecting hood. After the waste gas enters the fixed box, the larger particles in the waste gas can be first screened out through the function of the screen, so as to avoid the blockage of the air pump and the difficulty in cleaning the pipeline by the particle impurities.

Description

Fume chamber capable of treating laboratory waste gas

Technical Field

The utility model relates to the technical field of fume hoods, in particular to a fume hood capable of treating laboratory waste gas.

Background

The fume hood is key experimental equipment in a laboratory, an experimenter can carry out the allocation and the reaction of various chemical reagents in the fume hood, and then various harmful gases are purified and discharged through the fume hood, so that the safety of the experimenter is protected.

The patent grant publication number CN 219744301U's utility model discloses a laboratory waste gas purification fume chamber, including fume chamber, reaction chamber, transparent protection door plant, clean chamber, filtration liquid, aspiration pump, collection fan housing, gas collecting tube, gas supply pipe, drying cabinet, electric heating wire, induced draft tube and blast pipe, the reaction chamber is located in the fume chamber upper end, the reaction chamber is one end open-ended cavity setting, the open end in reaction chamber is located to transparent protection door plant, transparent protection door plant one end is articulated with the fume chamber lateral wall, the clean chamber is located in the fume chamber lower extreme, the filtration liquid is located in the clean chamber. The utility model belongs to the technical field of waste gas purification, and particularly provides a laboratory waste gas purification fume hood which is capable of filtering dust particles in waste gas through water, has higher filtering efficiency than a filter screen, and is capable of directly discharging filtered waste water from a drain pipe, eliminating the step of cleaning the filter screen, and is good in purification effect, simple in operation, time-saving and labor-saving.

In the above-mentioned prior art, in exhaust-gas treatment process, can suck waste gas through the air pump, but because contain particulate matter impurity in the waste gas, be inconvenient for to its preliminary treatment, can cause the jam of air pump or pipeline, influence the use to when treating waste gas through the filtrate, can not ensure that waste gas and filtrate's reaction time is sufficient, can influence the exhaust-gas treatment effect. Improvements are therefore needed.

Disclosure of utility model

The utility model aims to provide a fume chamber capable of treating laboratory waste gas, which solves the problem that air pumps or pipelines are possibly blocked by waste gas particles, and solves the problem that the treatment effect is affected due to insufficient reaction time of waste gas and filtrate.

In order to achieve the purpose, the ventilation cabinet capable of treating laboratory waste gas comprises a cabinet body, wherein a supporting rod is fixedly connected to the bottom of the cabinet body, a water tank is fixedly connected to the inner wall of the cabinet body, a filter screen is sleeved in the water tank in a sliding mode, two symmetrically distributed air outlets are fixedly connected to the interior of the cabinet body, a fixing box is fixedly connected to the right end of the cabinet body, a primary screening mechanism is arranged on the fixing box, and a filtering mechanism is arranged in the cabinet body.

Preferably, the number of the supporting rods is four, and the four supporting rods are uniformly distributed at the bottom of the cabinet body. The whole structure can be supported by designing the supporting rods.

Preferably, the primary screening mechanism comprises a gas collecting hood, the gas collecting hood is fixedly connected to the inside of the upper end of the cabinet body, a fixed pipe is fixedly connected to the top of the gas collecting hood, the fixed pipe is fixedly connected with the cabinet body, the fixed pipe is fixedly connected with a fixed box, a screen is fixedly connected to the inside of the fixed box, an air pump is fixedly connected to the inner side wall of the fixed box, a suction port is arranged at the bottom of the air pump, and an exhaust port is arranged at the left end of the air pump. Through design primary screening mechanism, can get rid of great particulate matter impurity.

Preferably, the air outlet penetrates through the cabinet body and is fixedly connected with the cabinet body, and the air outlet is fixedly connected with the water tank. By designing the exhaust port, gas can be exhausted into the water tank.

Preferably, the filtering mechanism comprises a water pump, the left end fixedly connected with water pump of the cabinet body, the right-hand member of water pump is provided with the inlet tube, the inlet tube respectively with the cabinet body and basin fixed connection, the top of water pump is provided with the drain pipe, the drain pipe runs through the cabinet body and with cabinet body fixed connection, the right-hand member fixedly connected with ring canal of drain pipe, the bottom fixedly connected with shower nozzle of ring canal, the top fixedly connected with fixed block of ring canal, fixed block and cabinet body fixed connection. Through designing filtering mechanism, can be with waste gas through the reaction of filtrate processing.

Preferably, the number of the spray heads is a plurality, and the spray heads are annular and uniformly distributed on the annular pipe. Through the design shower nozzle for the filtrate accessible shower nozzle sprays.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, through the effect of the designed air pump, the air pump can suck the inside of the fixed box, so that negative pressure can be formed in the fixed box, the fixed box can suck and collect waste gas through the gas collecting hood, and after the waste gas enters the inside of the fixed box, larger particles in the waste gas can be firstly screened out through the effect of the screen mesh, so that the air pump and a pipeline are prevented from being blocked by the particles and impurities, and the waste gas is difficult to clean.

2. According to the utility model, through the effect of the designed water tank, the filtrate is arranged in the water tank, when the waste gas enters, fine particles can be adsorbed by the filtrate, and meanwhile, the waste gas can be purified, in the treatment process, the filtrate in the water tank can be pumped and then sprayed through the spray head under the effect of the water pump, the gas after the filtrate treatment can be subjected to secondary spraying treatment, the influence on the treatment effect caused by insufficient contact time of the filtrate and the gas is prevented, the filter screen can be directly taken out, and impurities in the filtrate can be taken out during the taking out, so that the subsequent use is convenient.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a perspective view of a partial structure of FIG. 1 in accordance with the present utility model;

FIG. 3 is an enlarged view of the utility model at A of FIG. 2;

Fig. 4 is a perspective cross-sectional view of the structure of the stationary box of fig. 2 according to the present utility model.

The device comprises a cabinet body 1, a support rod 2, a support rod 3, a water tank 4, a filter screen 5, an air outlet 6, a fixed box 7, a primary screening mechanism 8, a filtering mechanism 71, a gas collecting cover 72, a fixed pipe 73, a filter screen 74, an air pump 75, a suction port 76, an air outlet 81, a water pump 82, a water inlet pipe 83, a water outlet pipe 84, a circular pipe 85, a spray head 86 and a fixed block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Please refer to fig. 1, fig. 2, a fume chamber of treatable laboratory waste gas, including the cabinet body 1, the bottom fixedly connected with bracing piece 2 of the cabinet body 1, the quantity of bracing piece 2 is four, four bracing pieces 2 are evenly distributed in the bottom of the cabinet body 1, through designing bracing piece 2, can support overall structure, the inner wall fixedly connected with basin 3 of the cabinet body 1, the inside sliding sleeve of basin 3 has filter screen 4, the inside fixedly connected with of the cabinet body 1 is two air outlets 5 that are symmetric distribution, the right-hand member fixedly connected with fixed box 6 of the cabinet body 1, be provided with primary screening mechanism 7 on the fixed box 6, the inside of the cabinet body 1 is provided with filtering mechanism 8.

Referring to fig. 1, 2 and 4, the primary screening mechanism 7 includes a gas collecting hood 71, the gas collecting hood 71 is fixedly connected with the inside of the upper end of the cabinet 1, the top of the gas collecting hood 71 is fixedly connected with a fixing tube 72, the fixing tube 72 is fixedly connected with the cabinet 1, the fixing tube 72 is fixedly connected with the fixing box 6, the inside of the fixing box 6 is fixedly connected with a screen 73, the inside wall of the fixing box 6 is fixedly connected with an air pump 74, the bottom of the air pump 74 is provided with a suction port 75, the left end of the air pump 74 is provided with an air outlet 76, the air outlet 76 penetrates through the cabinet 1 and is fixedly connected with the cabinet 1, the air outlet 76 is fixedly connected with the water tank 3, air can be discharged into the water tank 3 through the design of the air outlet 76, and impurities of larger particles can be removed through the primary screening mechanism 7.

Referring to fig. 1, 2 and 3, the filtering mechanism 8 includes a water pump 81, the left end of the cabinet body 1 is fixedly connected with the water pump 81, the right end of the water pump 81 is provided with a water inlet pipe 82, the water inlet pipe 82 is respectively fixedly connected with the cabinet body 1 and the water tank 3, the top of the water pump 81 is provided with a water drain pipe 83, the water drain pipe 83 penetrates through the cabinet body 1 and is fixedly connected with the cabinet body 1, the right end of the water drain pipe 83 is fixedly connected with a ring pipe 84, the bottom of the ring pipe 84 is fixedly connected with a plurality of spray heads 85, the spray heads 85 are annular and uniformly distributed on the ring pipe 84, the spray heads 85 are designed, so that filtrate can be sprayed through the spray heads 85, the top of the ring pipe 84 is fixedly connected with a fixed block 86, the fixed block 86 is fixedly connected with the cabinet body 1, and waste gas can be treated through the reaction of the filtrate through the design of the filtering mechanism 8.

When the utility model is used, the air pump 74 works, the air pump 74 pumps the inside of the fixed box 6 through the suction port 75, so that negative pressure is formed inside the fixed box 6, then the fixed box 6 pumps through the fixed pipe 72, so that waste gas generated in an experiment is collected through the gas collecting hood 71, then the waste gas can enter the inside of the fixed box 6, and under the action of the screen 73, larger particles in the waste gas can be screened out at first, and the air pump 74 and a pipeline are prevented from being blocked by the particle impurities, so that the cleaning is difficult.

After the primary screening, gas is discharged into the water tank 3 through the exhaust port 76, filtrate is arranged in the water tank 3, fine particles can be adsorbed by the filtrate after waste gas enters, waste gas can be purified simultaneously, after waste gas is purified, the waste gas can flow out through the water tank 3, meanwhile, the water pump 81 pumps the water tank 3 through the water inlet pipe 82, filtrate can be discharged through the water drain pipe 83, then the filtrate can be discharged into the ring pipe 84, finally the filtrate is sprayed through the spray head 85, secondary spraying treatment can be carried out on the gas after filtrate treatment, and the influence on the treatment effect caused by insufficient contact time of the filtrate and the gas is prevented. The treated gas can be finally discharged through the air outlet 5. And filter screen 4 can directly take out, and impurity can't pass through filter screen 4 when taking out, and filter screen 4 can take out the inside impurity of filtrate, makes things convenient for follow-up use.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a fume chamber of treatable laboratory waste gas, includes the cabinet body (1), its characterized in that, the bottom fixedly connected with bracing piece (2) of the cabinet body (1), the inner wall fixedly connected with basin (3) of the cabinet body (1), inside sliding sleeve of basin (3) has filter screen (4), the inside fixedly connected with of the cabinet body (1) is two air outlets (5) that are symmetric distribution, the right-hand member fixedly connected with fixed box (6) of the cabinet body (1), be provided with first screening mechanism (7) on fixed box (6), the inside of the cabinet body (1) is provided with filtering mechanism (8).

2. A fume hood capable of treating laboratory waste gas according to claim 1, wherein the number of the support rods (2) is four, and the four support rods (2) are uniformly distributed at the bottom of the cabinet body (1).

3. The fume chamber capable of treating laboratory waste gas according to claim 1, wherein the primary screening mechanism (7) comprises a gas collecting hood (71), the gas collecting hood (71) is fixedly connected to the inside of the upper end of the chamber body (1), a fixed pipe (72) is fixedly connected to the top of the gas collecting hood (71), the fixed pipe (72) is fixedly connected to the chamber body (1), the fixed pipe (72) is fixedly connected to the fixed box (6), a screen (73) is fixedly connected to the inside of the fixed box (6), an air pump (74) is fixedly connected to the inner side wall of the fixed box (6), a suction port (75) is arranged at the bottom of the air pump (74), and an exhaust port (76) is arranged at the left end of the air pump (74).

4. A fume hood capable of treating laboratory waste gas according to claim 3, wherein the air outlet (76) penetrates through the hood body (1) and is fixedly connected with the hood body (1), and the air outlet (76) is fixedly connected with the water tank (3).

5. The fume chamber capable of treating laboratory waste gas according to claim 1, wherein the filtering mechanism (8) comprises a water pump (81), the left end of the chamber body (1) is fixedly connected with the water pump (81), the right end of the water pump (81) is provided with a water inlet pipe (82), the water inlet pipe (82) is respectively fixedly connected with the chamber body (1) and the water tank (3), the top of the water pump (81) is provided with a water outlet pipe (83), the water outlet pipe (83) penetrates through the chamber body (1) and is fixedly connected with the chamber body (1), the right end of the water outlet pipe (83) is fixedly connected with a ring pipe (84), the bottom of the ring pipe (84) is fixedly connected with a spray head (85), the top of the ring pipe (84) is fixedly connected with a fixing block (86), and the fixing block (86) is fixedly connected with the chamber body (1).

6. A fume hood for treating laboratory waste gases according to claim 5, wherein said plurality of spray heads (85) is a plurality, and wherein said plurality of spray heads (85) are annularly and uniformly distributed over said collar (84).