CN213223689U

CN213223689U - Laboratory harmful gas exhaust apparatus

Info

Publication number: CN213223689U
Application number: CN202021379230.0U
Authority: CN
Inventors: 何哲
Original assignee: Tianjin Changshu Environmental Protection Technology Co ltd
Current assignee: Tianjin Zhengan Fire Fighting Equipment Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-05-18
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a harmful gas exhaust device for a laboratory, which belongs to the technical field of exhaust devices and comprises an exhaust pipe and an arc cover, wherein the lower end of the exhaust pipe is welded with the arc cover, one side of the exhaust pipe is embedded with a fixed frame A, the fixed frame A is embedded into the inner wall of the lower end frame body of the exhaust pipe and is fixedly connected with a fan A, the input end of the fan A is electrically connected with an external power supply, two sides of the top end of the exhaust pipe are fixedly connected with a fixed plate A, the fixed plate A is arranged on two sides of the top end of the exhaust pipe, a handle holding the top of the fixed frame A is pulled outwards through the fixed frame A, a fan in the fixed frame A is pulled out of the exhaust pipe along with the fixed frame A, the handle of the fixed frame B is lifted, the fixed frame B and an active carbon purification filter plate pipe are further lifted, a bolt between the, the problem of current laboratory toxic gas exhaust device dismantlement time overlength when maintaining is solved.

Description

Laboratory harmful gas exhaust apparatus

Technical Field

The utility model relates to an exhaust apparatus technical field especially relates to a laboratory harmful gas exhaust apparatus.

Background

The waste gas treatment not only aims at the industries of chemical industry, electronics, printing, electroplating and the like, but also comprises laboratory waste gas treatment, laboratory tail gas treatment, a laboratory waste gas treatment device and laboratory tail gas treatment. Some factories, colleges or scientific research laboratories often generate toxic gases during the experiment process, and the gases are low in emission but high in concentration, and if the gases are not directly emitted even if waste gas treatment is carried out, the gases can damage the surrounding environment and human health.

Patent number CN 205613243U's a laboratory harmful gas exhaust apparatus, including the mounting panel, the top at the installation pipe is installed to the mounting panel, the installation pipe is installed on gas transmission pipeline, connect through the straight tube adapter sleeve between the gas transmission pipeline, gas transmission pipeline is connected with flexible tubule through rotatory telescoping device, be equipped with the knob on the rotatory telescoping device and seal up the pad, be equipped with exhaust switch and wind speed regulating valve one on the flexible tubule, the inside of flexible tubule is equipped with the air exhauster, the below of flexible tubule is equipped with poison gas cover, be equipped with the elasticity protection pad on the poison gas cover. The utility model discloses a whether gas leakage of poison gas detector detectable kneck, poison gas alarm one contacts the toxic gas and will report to the police to the experimenter in time extracts the poison gas, and this novel extraction that has is efficient, long service life, and simple structure is reasonable, maintains simple to operate, and advantages such as the safe thoroughly is handled to the poison gas.

1. The laboratory harmful gas exhaust device in the prior art mostly has a fan and a purification assembly in the interior, and these assemblies are similar to the mounting mode of the above-mentioned patent structure and are generally locked in the device, and need to be dismantled when these assemblies are cleaned and maintained, but the purification and fan assemblies locked in the interior of the exhaust device need to be dismantled for maintenance after dismantling more assemblies, so that the maintenance time of the laboratory harmful gas exhaust device is increased.

2. The harmful gas exhaust apparatus in laboratory of prior art can use filtration purifier when exhausting, and present purifier uses active carbon mostly as adsorbing purification material, but traditional cubic adsorption plate adsorption time of active carbon is short, and its individual layer material makes toxic gas shorter at the dwell time of panel space department for toxic gas's absorption purifies unclean, endangers the surrounding environment, for this reason, we propose a harmful gas exhaust apparatus in laboratory.

SUMMERY OF THE UTILITY MODEL

The utility model provides a harmful gas exhaust device for a laboratory, which is characterized in that a fixed frame A, a fixed frame B, a fan A and a fan B are arranged, a handle at the top of the fixed frame A is held to pull outwards, so that the fan in the fixed frame A is pulled out of an exhaust pipe along with the fixed frame A, the handle of the fixed frame B is held to lift upwards, an active carbon filter plate below the fixed frame B is lifted out of a purifying pipe, a bolt between the purifying pipe and an exhaust box is disassembled, then the fan B and the bolt at the inner part of the exhaust box are disassembled to take down the fan B, the problem of overlong disassembly time when the existing toxic gas exhaust device for the laboratory is maintained is solved, toxic gas sucked by the fan A and the fan B is blown away to the active carbon filter plate through arranging the active carbon filter plate and an S-shaped partition plate, the active carbon filter plate in the longer purifying pipe is penetrated by slow wind power, the toxic gas is firstly adsorbed on the surface layer, then the S-shaped division plate at the center of the activated carbon filter plate separates the activated carbon filter plate to form an inner cavity space, so that wind power is absorbed by the other side plate surface and the inner wall of the activated carbon filter plate again after the speed of the hollow inner cavity of the activated carbon filter plate is reduced, the speed of toxic gas is reduced by arranging the inner cavities of the activated carbon filter plate at intervals, the adsorption time of the activated carbon filter plate is further prolonged, and the problem that the adsorption effect of an adsorption part of an existing laboratory toxic gas exhaust device is poor is solved.

The utility model provides a specific technical scheme as follows:

the utility model provides a harmful gas exhaust device for laboratories, which comprises an exhaust pipe and an arc cover, wherein the arc cover is welded at the lower end of the exhaust pipe, a fixed frame A is embedded in one side of the exhaust pipe, a fan A is fixedly connected with the inner wall of a lower end frame body of the exhaust pipe, the input end of the fan A is electrically connected with an external power supply, fixed plates A are fixedly connected with two sides of the top end of the exhaust pipe, a bolt is connected between the fixed plate A at the upper end of the exhaust pipe and the fixed plate B at the lower end of the exhaust pipe in a threaded manner, a vent box is welded at the tail end of the exhaust pipe, a fan B is detachably connected between the upper inner wall and the lower inner wall of the vent box, the input end of the fan B is electrically connected with the external power supply, the back end of the vent box is detachably connected with a purification, the tail end welding of purge tube has the mounting panel, and the center cavity of mounting panel, the front end of mounting panel is seted up porosely.

Optionally, a rubber pad is embedded between the fixing plate a of the exhaust pipe and the fixing plate B of the vent pipe.

Optionally, the top ends of the outer walls of the fixed frame A and the fixed frame B are fixedly connected with a handle.

Optionally, a sieve plate is welded at the joint of the arc-shaped cover and the exhaust pipe, and a hole is formed in the surface of the sieve plate at the top of the arc-shaped cover.

Optionally, an S-shaped partition plate is embedded between the activated carbon filter plates, and the S-shaped partition plate separates the centers of the activated carbon filter plates by a gap.

The utility model has the advantages as follows:

1. the utility model discloses a be equipped with fixed frame A, fixed frame B, fan A and fan B, the handle of holding fixed frame A top stimulates outwards, make the fan in the fixed frame A follow fixed frame A and be pulled out the blast pipe, hold fixed frame B's handle, upwards lift it, and then propose the purge tube with the active carbon filter plate of fixed frame B below, dismantle the purge tube and air exhaust the bolt between the case, fan B is taken off with the bolt of the incasement portion department of airing exhaust after that, the problem of dismantlement time overlength when having solved current laboratory toxic gas exhaust device and maintaining.

2. The utility model discloses a be equipped with active carbon filter plate and S-shaped space bar, the inspiratory toxic gas of fan A and fan B blows off to the active carbon filter plate, the active carbon filter plate in longer purge tube is penetrated by slow wind-force, toxic gas adsorbs on the top layer of active carbon filter plate for the first time, then the S-shaped space bar at active carbon filter plate center separates the active carbon filter plate and forms inner chamber space, and then make wind-force adsorb by the opposite side face and the inner wall of active carbon filter plate once more after the speed reduction of active carbon filter plate cavity inner chamber department, it realizes slowing down the toxic gas through having the inner chamber with the active carbon filter plate interval, and then promote the adsorption time of active carbon filter plate, the problem that the adsorption element adsorption efficiency of having solved current laboratory toxic gas exhaust apparatus is poor.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a laboratory harmful gas exhaust device according to an embodiment of the present invention.

Fig. 2 is a schematic view of a fixing plate structure of a laboratory harmful gas exhaust device according to an embodiment of the present invention.

Fig. 3 is a circuit control diagram of a laboratory harmful gas exhaust device according to an embodiment of the present invention.

In the figure: 1. an exhaust pipe; 2. an arc-shaped cover; 3. a vent pipe; 4. an exhaust box; 5. a purge tube; 6. mounting a plate; 7. a fixed frame A; 8. a fan A; 9. a fan B; 10. a fixed frame B; 11. an S-shaped partition plate; 12. an active carbon filter plate; 13. a fixing plate; 14. a rubber pad; 15. and (7) fixing the plate B.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A laboratory harmful gas exhaust apparatus according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1-3, an embodiment of the present invention provides a laboratory harmful gas exhaust apparatus, which includes an exhaust pipe 1 and an arc cover 2, wherein the arc cover 2 is welded to the lower end of the exhaust pipe 1, a fixing frame a7 is embedded into one side of the exhaust pipe 1, a fan a8 is fixedly connected to the inner wall of the lower frame body of the fixing frame a7 embedded into the exhaust pipe 1, and the input end of the fan a8 is electrically connected to an external power source, fixing plates a13 are fixedly connected to both sides of the top end of the exhaust pipe 1, a bolt is threadedly connected between the fixing plate a13 at the upper end of the exhaust pipe 1 and the fixing plate B15 at the lower end of the vent pipe 3, an exhaust box 4 is welded to the tail end of the vent pipe 3, a fan B9 is detachably connected between the upper and lower inner walls of the exhaust box 4, the input end of the, and one side pipe wall embedding of purge tube 5 has fixed frame B10, and can dismantle between the inner wall of fixed frame B10 and purge tube 5 and be connected with active carbon filter plate 12, the trailing end welding of purge tube 5 has mounting panel 6, and mounting panel 6's center cavity, mounting panel 6's front end is seted up porosely.

Illustratively, the handle holding the top of fixed frame a7 is pulled outward, causing the fan inside fixed frame a7 to be pulled out of the stack following fixed frame a7, the handle of fixed frame B10 is held, it is lifted upward, then the activated carbon filter plate 12 under the fixing frame B10 is lifted out of the purifying tube 5, the bolt between the purifying tube 5 and the exhaust box 4 is detached, then the blower B9 and the bolt at the inner part of the exhaust box 4 are removed to take off the blower B9, the toxic gas sucked by the blower A8 and the blower B9 is blown to the active carbon filter plate 12, the activated carbon filter plate 12 in the longer purification tube 5 is penetrated by slow wind, the toxic gas is firstly adsorbed on the surface layer of the activated carbon filter plate 12, then the activated carbon filter plate 12 is separated by an S-shaped partition plate 11 at the center of the activated carbon filter plate 12 to form an inner cavity space, and then the wind power is absorbed by the other side plate surface and the inner wall of the active carbon filter plate 12 again after being decelerated at the hollow inner cavity of the active carbon filter plate 12.

Referring to fig. 2, a rubber gasket 14 is inserted between the fixing plate a13 of the exhaust pipe 1 and the fixing plate B15 of the vent pipe 3.

For example, the rubber pad 14 between the fixing plate a13 of the exhaust pipe 1 and the fixing plate B15 of the ventilation pipe 3 plays a role in filling and sealing the joint of the exhaust pipe 1 and the ventilation pipe 3.

Referring to fig. 1, handles are fixedly connected to the top ends of the outer walls of the fixed frames a7 and B10.

Illustratively, handles at the top ends of the outer walls of the fixed frame a7 and the fixed frame B10 facilitate lifting of the fixed frame a7 and the fixed frame B10.

Referring to fig. 1, a sieve plate is welded at the joint of the arc cover 2 and the exhaust pipe 1, and a hole is formed in the surface of the sieve plate at the top of the arc cover 2.

Illustratively, the screen plate at the top of the arc hood 2 prevents a person from accidentally touching the blower A8.

Referring to fig. 1, S-shaped partition plates 11 are inserted between the activated carbon filter plates 12, and the centers of the activated carbon filter plates 12 are spaced apart by the S-shaped partition plates 11.

In the example, the S-shaped partition plate 11 separates the center of the activated carbon filter plate 12, and slows down the drift velocity of the toxic gas.

When the device is used, the mounting plate 6 is fixed on a wall at a vent above a test bed, so that a cavity of the mounting plate 6 is matched with an exhaust port, a gas detector in the laboratory detects toxic gas to give an alarm, then a power supply of a fan A8 and a fan B9 is started, the fan A8 sucks the gas above the test bed from the lower end of the arc-shaped cover 2, the gas enters the exhaust pipe 1 and is sent into the vent pipe 3, then the fan B9 in the exhaust box 4 rotates to blow the toxic gas to the activated carbon filter plate 12, the activated carbon filter plate 12 in the longer purification pipe 5 is penetrated by slow wind power, the toxic gas is firstly adsorbed on the surface layer of the activated carbon filter plate 12, then the S-shaped partition plate 11 at the center of the activated carbon filter plate 12 partitions the activated carbon filter plate 12 into an inner cavity space, and the wind power is further adsorbed by the other side plate surface and the inner wall of the activated carbon filter plate, the handle holding the top of the fixing frame A7 is pulled outwards, so that the fan in the fixing frame A7 is pulled out of the exhaust pipe 1 along with the fixing frame A7, the handle holding the fixing frame B10 is lifted upwards, the activated carbon filter plate 12 below the fixing frame B10 is further lifted out of the purification pipe 5, the bolt between the purification pipe 5 and the exhaust box 4 is disassembled, then the bolt between the fan B9 and the inner part of the exhaust box 4 is disassembled to take off the fan B9, the rubber gasket 14 between the fixing plate A13 of the exhaust pipe 1 and the fixing plate B15 of the ventilation pipe 3 plays a role of filling and sealing the joint of the exhaust pipe 1 and the ventilation pipe 3, the fan A8 and the fan B9 used above are negative pressure fans of Hongfeng 850 type, the equipment and the components are the existing products on the market, the working principle and the internal structure thereof are known to the technical personnel in the technical field, the utility model only utilizes the functions of the above components and does not improve the internal structure thereof, therefore, detailed description thereof is omitted.

It should be noted that the utility model relates to a laboratory harmful gas exhaust apparatus, including blast pipe 1, arc cover 2, ventilation pipe 3, exhaust case 4, purge tube 5, mounting panel 6, fixed frame A7, fan A8, fan B9, fixed frame B10, S-shaped space bar 11, active carbon filter plate 12, fixed plate A13, rubber pad 14, fixed plate B15, the part is general standard component or the part that technical personnel in the art know, its structure and principle all are that this technical personnel all can learn through the technical manual or learn through conventional experimental method.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a laboratory harmful gas exhaust apparatus, includes blast pipe (1) and arc cover (2), the lower extreme welding of blast pipe (1) has arc cover (2), its characterized in that: one side of the exhaust pipe (1) is embedded with a fixed frame A (7), the fixed frame A (7) is embedded into the lower end frame inner wall of the exhaust pipe (1) and is fixedly connected with a fan A (8), the input end of the fan A (8) is electrically connected with an external power supply, both sides of the top end of the exhaust pipe (1) are fixedly connected with a fixed plate A (13), a bolt is in threaded connection between the fixed plate A (13) at the upper end of the exhaust pipe (1) and a fixed plate B (15) at the lower end of the ventilation pipe (3), the tail end of the ventilation pipe (3) is welded with an exhaust box (4), a fan B (9) is detachably connected between the upper inner wall and the lower inner wall of the exhaust box (4), the input end of the fan B (9) is electrically connected with the external power supply, the back end of the exhaust box (4) is detachably connected, and can dismantle between the inner wall of fixed frame B (10) and purge tube (5) and be connected with active carbon filter plate (12), the trailing end welding of purge tube (5) has mounting panel (6), and the center cavity of mounting panel (6), the front end of mounting panel (6) is seted up porosely.

2. The laboratory hazardous gas exhaust device according to claim 1, wherein: a rubber pad (14) is embedded between a fixing plate A (13) of the exhaust pipe (1) and a fixing plate B (15) of the ventilation pipe (3).

3. The laboratory hazardous gas exhaust device according to claim 1, wherein: and the top ends of the outer walls of the fixed frame A (7) and the fixed frame B (10) are fixedly connected with a handle.

4. The laboratory hazardous gas exhaust device according to claim 1, wherein: the screen plate is welded at the joint of the arc cover (2) and the exhaust pipe (1), and a hole is formed in the surface of the screen plate at the top of the arc cover (2).

5. The laboratory hazardous gas exhaust device according to claim 1, wherein: s-shaped partition plates (11) are embedded between the activated carbon filter plates (12), and gaps are formed between the S-shaped partition plates (11) and the centers of the activated carbon filter plates (12).