CN216827813U

CN216827813U - Easy combustible and explosive gas verification fume chamber

Info

Publication number: CN216827813U
Application number: CN202220176263.8U
Authority: CN
Inventors: 魏明; 纪树杰; 刘茹; 周斌
Original assignee: Huaibei Mining Co Ltd
Current assignee: Huaibei Mining Co Ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-28
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to a easily fire explosive gas examination fume chamber, the intelligent cabinet temperature adjusting device comprises a cabinet body, enclosure door and exhaust structure, the enclosure door includes the fixed plate, sliding plate and the flexible cover that is equipped with the handle hole, fixed plate and cabinet body fixed connection, and set up in the inside of the cabinet body, sliding plate and fixed plate sliding fit, and set up in the downside of fixed plate, flexible cover inlays the inboard of locating the handle hole, and with the inner wall fixed connection of handle hole, on the basis of current fume chamber, add flexible cover and sliding plate, cooperation through flexible cover and sliding plate, and then make the fume chamber under user operating condition and the state of not operating, the homoenergetic realizes the closure of fume chamber, when the flammable explosive gas of operation, also can pass through the setting of fixed plate and sliding plate, avoid the direct injury of explosion to the user, effectively promote the security performance of fume chamber.

Description

Easy combustible and explosive gas verification fume chamber

Technical Field

The utility model relates to a fume chamber technical field especially relates to a easily fire explosive gas examination fume chamber.

Background

The fume chamber is used as equipment which is often used in a chemical laboratory for testing, and toxic and harmful gas generated in the testing and calibrating process is removed, so that the personal safety of an operator is protected. In order to improve the safety performance of the fume hood in the prior art, the sealing performance of the fume hood is generally improved by adopting a lifting type mode. However, in the practical use process, the lifting type ventilation cabinet is often required to be opened when the interior of the ventilation cabinet is required to be operated, so that the risk of harmful gas leakage exists, and once some flammable and combustible gases leak, life threat can be caused to users.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a easily fire explosive gas examination fume chamber to when using the fume chamber among the solution prior art, face easily fire explosive gas to the not enough problem of user's protectiveness.

In order to achieve the purpose, the utility model provides a flammable and explosive gas verification ventilation cabinet, which comprises a cabinet body, a sealing cover door and an exhaust structure, wherein the sealing cover door is connected with the cabinet body in a sliding way and is arranged on one side of the cabinet body, and the exhaust structure is arranged on the inner side of the cabinet body and is in sliding fit with the cabinet body; the sealing cover door comprises a fixed plate, a sliding plate and a telescopic sleeve, wherein the sliding plate is provided with an operation hole, the fixed plate is fixedly connected with the cabinet body and is arranged in the cabinet body, the sliding plate is in sliding fit with the fixed plate and is arranged on the lower side of the fixed plate, the operation hole penetrates through the sliding plate, and the telescopic sleeve is embedded in the inner side of the operation hole and is fixedly connected with the inner wall of the operation hole.

The cabinet body detects, the enclosure door then will the cabinet body seals to provide detection space, exhaust structure passes through the negative pressure, arranges easily fire explosive gas to predetermined container in, and then reduces the explosion risk, the fixed plate cooperation the sliding plate, when detecting, will the sliding plate slides down, can seal the cabinet body, when detecting, even easily fire explosive gas appears exploding, also can completely cut off the explosion the inboard of the cabinet body, and then realizes the protection to the user, the handle hole lets the user when needs are operated, and the hand wears protective apparatus after, gos deep into in the cabinet body, can operate, satisfies the safety requirement promptly, satisfies the operation needs again.

The telescopic sleeve comprises an installation sleeve, an air duct and a plurality of sealing films, the installation sleeve is fixedly connected with the inner wall of the operation hole, the air duct is embedded in the outer side of the telescopic sleeve and communicated with the cabinet body, and the sealing films are arranged on the inner side of the installation sleeve.

The installation cover cooperation the handle hole through set up in the air duct and a plurality of the closed film to when not needing the operation, still can with the handle hole seals, thereby avoids harmful gas to leak, uses at the user the handle hole is operated, also can pass through the closed film encircles around user's arm, and assists the air duct blowout gas, in order to realize the double-seal to harmful gas, also promote the security of fume chamber.

The installation sleeve is provided with a plurality of exhaust holes and a plurality of butt joint grooves, the exhaust holes are in one-to-one correspondence with the butt joint grooves, and the exhaust holes are communicated with the air guide pipe through the butt joint grooves.

A plurality of the setting in exhaust hole is through discharge pressure gas to make the inner periphery side of installation cover can be in with harmful gas seals the cabinet is internal, and then makes the security performance of fume chamber promoted, and is a plurality of the setting in butt joint groove is then used for cooperating the air duct, makes the air duct can be stable encircle the installation cover sets up.

Wherein, the fixed plate includes guide plate and air supplement plate, the guide plate set up in the upside of the cabinet body, and with cabinet body fixed connection, air supplement plate set up in the upside of guide plate, just air supplement plate connects the guide plate with the cabinet body.

The guide plate is used for guiding the movement direction of gas exhausted by the exhaust structure, the air supplementing plate is used for supplementing gas into the cabinet body when the exhaust structure is stopped, so that the negative pressure piece can continuously absorb the generated harmful gas, and the air supplementing plate can be manually controlled to be opened and closed.

The guide plate is provided with an accommodating cavity and a sliding rail, the accommodating cavity is arranged on the inner side of the guide plate and is matched with the sliding plate, the sliding rail is arranged on the inner side of the guide plate, and the sliding rail is in sliding fit with the sliding plate.

The accommodating cavity is used for accommodating the sliding plate, the sliding plate can be accommodated in the accommodating cavity in an open state through the arrangement of the accommodating cavity, the sliding rail is matched with the sliding plate, so that the moving direction of the sliding plate is limited, and meanwhile, the sliding rail also has a certain function of stabilizing the moving process of the sliding plate, so that the sliding plate can be stably matched with the fixed plate.

The sliding plate is provided with a butt joint bulge and air guide holes, the butt joint bulge is arranged on the upper side of the sliding plate and is matched with the sliding rail, the air guide holes are formed in two sides of the sliding plate and penetrate through the sliding plate, and the air guide holes are communicated with the telescopic sleeve and the cabinet body.

The butt joint bulge is used for being matched with the sliding rail, so that the sliding plate is matched with the sliding rail through the butt joint bulge, and can perform stable relative motion with the sliding rail in the moving process of the sliding plate, the air guide pipe is arranged through the air guide hole, and the air guide pipe is arranged through the air guide hole, so that the sliding plate can be communicated with the cabinet body through the air guide pipe in a closed state, the installation sleeve can exhaust air, and the closed requirement of the fume hood is met.

The utility model discloses a flammable and explosive gas examination fume chamber improves the structure of fume chamber, on the basis of current fume chamber, adds the flexible cover with the sliding plate, through the flexible cover with the cooperation of sliding plate, and then make the fume chamber under user's operating condition and under the state of not operating, the homoenergetic realizes sealing of fume chamber, when the flammable and explosive gas of operation, also can pass through the fixed plate with the setting of sliding plate avoids the explosion to user's direct injury, effectively promotes the security performance of fume chamber.

Drawings

Fig. 1 is the utility model provides a pair of easily fire explosive gas examination fume chamber's axle survey structure schematic diagram.

Fig. 2 is a schematic view of a sectional structure of a flammable and explosive gas verification ventilation cabinet provided by the utility model.

Fig. 3 is a front view structure diagram of a non-enclosure door of a flammable and explosive gas verification ventilation cabinet provided by the utility model.

Fig. 4 is a schematic axial view of a sliding plate of a flammable and explosive gas verification fume chamber provided by the utility model.

Fig. 5 is a schematic cross-sectional view of a sliding plate of a flammable and explosive gas verification fume chamber provided by the present invention.

Fig. 6 is a schematic view of the shaft measuring structure of the telescopic sleeve of the flammable and explosive gas testing ventilation cabinet.

Fig. 7 is a schematic view of the top air curtain and the adjusting bracket of the flammable and explosive gas verification ventilation cabinet.

1-cabinet body, 2-closed hood door, 3-exhaust structure, 4-fixed plate, 5-sliding plate, 6-telescopic sleeve, 7-negative pressure piece, 8-top air curtain, 9-adjusting frame, 10-guide plate, 11-air supplement plate, 12-operation hole, 13-butt joint bulge, 14-air guide hole, 15-installation sleeve, 16-air guide tube, 17-closed soft sheet, 18-conical body, 19-negative pressure suction port, 20-fixed support, 21-pulley, 22-containing cavity, 23-sliding rail, 24-exhaust hole and 25-butt joint groove.

Detailed Description

Please refer to fig. 1 to 7, the utility model provides a flammable and explosive gas examination fume chamber, flammable and explosive gas examination fume chamber includes the cabinet body 1, enclosure door 2 and exhaust structure 3, enclosure door 2 with 1 sliding connection of the cabinet body, and set up in one side of the cabinet body 1, exhaust structure 3 set up in the inboard of the cabinet body 1, and with 1 sliding fit of the cabinet body. The sealing cover door 2 comprises a fixed plate 4, a sliding plate 5 and a telescopic sleeve 6, wherein the sliding plate 5 is provided with an operation hole 12, the fixed plate 4 is fixedly connected with the cabinet body 1 and is arranged in the cabinet body 1, the sliding plate 5 is in sliding fit with the fixed plate 4 and is arranged on the lower side of the fixed plate 4, the operation hole 12 penetrates through the sliding plate 5, and the telescopic sleeve 6 is embedded in the inner side of the operation hole 12 and is fixedly connected with the inner wall of the operation hole 12.

In this embodiment, the cabinet body 1 detects, the enclosure door 2 will the cabinet body 1 seals to provide the detection space, exhaust structure 3 will easily fire explosive gas through the negative pressure and arrange predetermined container in, and then reduce the explosion risk, fixed plate 4 cooperation sliding plate 5 when detecting, will sliding plate 5 slides down, can seal the cabinet body 1, when detecting, even easily fire explosive gas explodes, also can be with the explosion isolation in the inboard of the cabinet body 1, and then realize the protection to the user, handle hole 12 lets the user when needs operate, and after wearing protective equipment, the hand deepens in the cabinet body 1, can operate, satisfies the safety requirement promptly, satisfies the operation needs again.

The telescopic sleeve 6 comprises an installation sleeve 15, an air duct 16 and a plurality of sealing soft sheets 17, the installation sleeve 15 is fixedly connected with the inner wall of the operation hole 12, the air duct 16 is buried in the outer side of the telescopic sleeve 6, and is communicated with the cabinet body 1, and the sealing soft sheets 17 are arranged on the inner side of the installation sleeve 15.

In this embodiment, the mounting sleeve 15 is matched with the operation hole 12, and is disposed on the air duct 16 and the plurality of sealing films 17, so that when the operation is not needed, the operation hole 12 can be still sealed, thereby preventing the leakage of harmful gas, when a user uses the operation hole 12 to operate, the user can surround the arm of the user through the sealing films 17, and the air duct 16 is used for ejecting gas, so as to realize double sealing of harmful gas, that is, to improve the safety of the ventilation cabinet, and the sealing films 17 also have a certain function of guiding the airflow direction of the air duct 16.

The installation sleeve 15 is provided with a plurality of exhaust holes 24 and a plurality of butt joint grooves 25, the exhaust holes 24 are in one-to-one correspondence with the butt joint grooves 25, and the exhaust holes 24 are communicated with the air guide pipes 16 through the butt joint grooves 25.

In this embodiment, a plurality of the exhaust holes 24 are arranged to exhaust pressure gas, so that the inner peripheral side of the mounting sleeve 15 can seal harmful gas in the cabinet body 1, and further the safety performance of the ventilation cabinet is improved, and the butt joint grooves 25 are arranged to cooperate with the air duct 16, so that the air duct 16 can stably surround the mounting sleeve 15.

The fixed plate 4 comprises a guide plate 10 and an air supplementing plate 11, the guide plate 10 is arranged on the upper side of the cabinet body 1 and is fixedly connected with the cabinet body 1, the air supplementing plate 11 is arranged on the upper side of the guide plate 10, and the air supplementing plate 11 is connected with the guide plate 10 and the cabinet body 1.

In this embodiment, the guide plate 10 is used to guide the moving direction of the gas exhausted by the exhaust structure 3, the air supplement plate 11 is used to supplement the gas into the cabinet 1 when the exhaust structure 3 is not used, so that the negative pressure part 7 can continuously absorb the generated harmful gas, and the air supplement plate 11 can be manually controlled to open and close.

The guide plate 10 is provided with a containing cavity 22 and a sliding rail 23, the containing cavity 22 is arranged on the inner side of the guide plate 10 and is matched with the sliding plate 5, the sliding rail 23 is arranged on the inner side of the guide plate 10, and the sliding rail 23 is in sliding fit with the sliding plate 5.

In the present embodiment, the accommodating chamber 22 is configured to accommodate the sliding plate 5, the sliding plate 5 can be accommodated in the accommodating chamber 22 in an open state through the arrangement of the accommodating chamber 22, the sliding rail 23 is engaged with the sliding plate 5, so as to define a moving direction of the sliding plate 5, and meanwhile, the sliding rail 23 also has a certain function of stabilizing a moving process of the sliding plate 5, so that the sliding plate 5 can be stably engaged with the fixed plate 4.

The sliding plate 5 is provided with a butt joint bulge 13 and an air guide hole 14, the butt joint bulge 13 is arranged on the upper side of the sliding plate 5 and is matched with the sliding rail 23, the air guide hole 14 is arranged on two sides of the sliding plate 5, the air guide hole 14 penetrates through the sliding plate 5, and the air guide hole 14 is communicated with the telescopic sleeve 6 and the cabinet body 1.

In this embodiment, the abutting protrusion 13 is configured to cooperate with the sliding rail 23, so that the sliding plate 5 cooperates with the sliding rail 23 through the abutting protrusion 13, and further can perform a relatively stable relative movement with the sliding rail 23 during the moving process of the sliding plate 5, the air guide hole 14 is configured to seat the air guide tube 16, and the air guide tube 16 is positioned through the air guide hole 14, so that the sliding plate 5 can communicate with the cabinet body 1 through the air guide tube 16 in a closed state, so that the mounting sleeve 15 can exhaust air, and thus the closed requirement of the fume hood is met.

The exhaust structure 3 comprises a negative pressing part 7, a top air curtain 8 and an adjusting frame 9, the adjusting frame 9 is connected with the top air curtain 8 and the top of the inner side of the cabinet body 1 and is in sliding fit with the cabinet body 1, and the negative pressing part 7 is arranged on the inner side of the cabinet body 1 to provide negative pressure.

In the embodiment, the negative pressure part 7 provides negative pressure to the cabinet body 1, so that the generated harmful gas can be discharged to a specific container through the negative pressure part 7, the top air curtain 8 further improves the sealing performance of the cabinet body 1 against the harmful gas, a fan is externally connected with the top air curtain 8, so that the top air curtain 8 discharges the pressure gas downwards, so that the harmful gas is limited at the inner side of the top air curtain 8, even if a hand of a user passes through the air curtain, so that a small amount of harmful gas can pass through the air curtain, the sealing performance of the harmful gas can be realized through the telescopic sleeve 6, so as to improve the safety performance of the ventilation cabinet from multiple aspects, the adjusting bracket 9 is used for adjusting the height of the top air curtain 8, and the top air curtain 8 is adjusted in height as required through the cooperation of the adjusting bracket 9 and the cabinet body 1, so as to meet the requirements of different harmful gases on the sealing performance.

The adjusting bracket 9 comprises a fixed bracket 20 and pulleys 21, the pulleys 21 are arranged on two sides of the fixed bracket 20 and are connected with the inner side of the cabinet body 1 in a sliding manner, and the fixed bracket 20 is fixedly connected with the top air curtain 8.

In this embodiment, the fixing bracket 20 is used to mount the top air curtain 8, so that the top air curtain 8 and the fixing bracket 20 can maintain a stable relative position relationship, and the pulleys 21 are disposed on two sides of the fixing bracket 20, so that the fixing bracket 20 can perform height adjustment in the cabinet 1, thereby achieving height adjustment of the top air curtain 8.

The negative pressure piece 7 is provided with a conical body 18 and a negative pressure suction port 19, the conical body 18 is externally connected with an air pump, and the negative pressure suction port 19 is arranged on two sides of the conical body 18 so as to penetrate through the conical body 18 and be communicated with the externally connected air pump. In the present embodiment, the conical body 18 is arranged to improve the absorption capacity of the negative pressure piece 7 to harmful gas, and by arranging the conical body 18, the contact degree of the negative pressure suction port 19 and the harmful gas is improved, so that the harmful gas can be more sufficiently sucked into the conical body 18 and sent to a predetermined container on the basis of being sealed, thereby improving the safety performance of the fume hood.

Inflammable and explosive gas examination fume chamber, improve the structure of fume chamber, on the basis of current fume chamber, add the telescope tube 6 with sliding plate 5, through the telescope tube 6 with sliding plate 5's cooperation, and then make the fume chamber under user operating condition and under the state of not operating, the homoenergetic realizes sealing of fume chamber, when the flammable and explosive gas of operation, also can pass through fixed plate 4 with sliding plate 5's setting avoids the direct injury of explosion to the user, effectively promotes the security performance of fume chamber.

Claims

1. The flammable and explosive gas verification ventilation cabinet is characterized by comprising a cabinet body, a sealing cover door and an exhaust structure, wherein the sealing cover door is connected with the cabinet body in a sliding mode and arranged on one side of the cabinet body, and the exhaust structure is arranged on the inner side of the cabinet body and matched with the cabinet body in a sliding mode; the sealing cover door comprises a fixed plate, a sliding plate and a telescopic sleeve, wherein the sliding plate is provided with an operation hole, the fixed plate is fixedly connected with the cabinet body and is arranged in the cabinet body, the sliding plate is in sliding fit with the fixed plate and is arranged on the lower side of the fixed plate, the operation hole penetrates through the sliding plate, and the telescopic sleeve is embedded in the inner side of the operation hole and is fixedly connected with the inner wall of the operation hole.

2. The ventilated cabinet for detecting flammable and explosive gases according to claim 1, wherein the telescopic sleeve comprises an installation sleeve, an air guide tube and a plurality of sealing soft sheets, the installation sleeve is fixedly connected with the inner wall of the operation hole, the air guide tube is embedded in the outer side of the telescopic sleeve and communicated with the cabinet body, and the sealing soft sheets are all arranged on the inner side of the installation sleeve.

3. A flammable and explosive gas verification fume hood as claimed in claim 2, wherein the mounting sleeve has a plurality of exhaust holes and a plurality of butt-joint grooves, the plurality of exhaust holes and the plurality of butt-joint grooves are arranged in one-to-one correspondence, and the plurality of exhaust holes are communicated with the gas guide tube through the corresponding butt-joint grooves.

4. The easy-to-burn and explosive gas detection ventilation cabinet according to claim 1, wherein the fixing plate comprises a guide plate and an air supplement plate, the guide plate is arranged on the upper side of the cabinet body and is fixedly connected with the cabinet body, the air supplement plate is arranged on the upper side of the guide plate, and the air supplement plate is connected with the guide plate and the cabinet body.

5. A flammable and explosive gas verification fume hood as claimed in claim 4, wherein the flow guide plate is provided with a containing cavity and a sliding rail, the containing cavity is arranged on the inner side of the flow guide plate and is matched with the sliding plate, the sliding rail is arranged on the inner side of the flow guide plate, and the sliding rail is in sliding fit with the sliding plate.

6. A flammable and explosive gas testing fume hood according to claim 5, wherein the sliding plate is provided with a butt joint protrusion and air guide holes, the butt joint protrusion is arranged on the upper side of the sliding plate and is matched with the sliding rail, the air guide holes are arranged on two sides of the sliding plate and penetrate through the sliding plate, and the air guide holes are communicated with the telescopic sleeves and the cabinet body.