CN210435025U

CN210435025U - Ventilation cabinet with linkage valve adjusting system

Info

Publication number: CN210435025U
Application number: CN201920877942.6U
Authority: CN
Inventors: 吴琴
Original assignee: Taixing Hualong Chemical Experiment Equipment Co ltd
Current assignee: Taixing Hualong Chemical Experiment Equipment Co ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-05-01
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to a fume chamber technical field specifically is a take linkage valve governing system's fume chamber, including the fume chamber body, the air-out opening has been seted up in the top of fume chamber body through, and its inside middle section level is provided with the operation panel, and its bottom outside is articulated to be equipped with the cabinet door, and air-out open-ended top is equipped with the ventilation pipe, and air-out open-ended bottom is equipped with collects the wind chamber, and the ventilation pipe is the integrated into one piece structure with the top of fume chamber body, and beneficial effect is: this practicality sets up the air-blower on the inside bottom of fume chamber body, is provided with the benefit tuber pipe on the top of operation panel, and has evenly seted up the exhaust vent on the inside wall of benefit tuber pipe, and wherein in the air-blower blew the outside air into the benefit tuber pipe, the benefit tuber pipe discharges the air from the exhaust vent again, compares traditional technology, this practicality can effectively increase the wind speed of the internal portion corner of cabinet, is favorable to exhausting the poison gas of the internal portion of cabinet to the greatest extent, fully guarantees experimenter's safety.

Description

Ventilation cabinet with linkage valve adjusting system

Technical Field

The utility model relates to a fume chamber technical field specifically is a take linkage valve governing system's fume chamber.

Background

The fume chamber is also called cabinet type exhaust hood, and is similar to the sealed cowling, and its principle is that the negative pressure produces at the top of the cabinet body to take away the toxic gas in the cabinet, ensure experimenter's safety. Now, mainstream ventilation cabinet on the market all has wind force governing system to adjust the wind speed of the internal portion of cabinet in the experimentation, but in the in-service use process we discover, because there is certain complexity in the structure of the internal portion of cabinet, the negative pressure size in the different spaces of the internal portion of cabinet is all different, consequently, there is a condition, the wind speed is very often very little in the corner department of the internal portion of cabinet promptly, so when the experiment finishes, ventilation system closes the back, the internal portion of cabinet still has some poison gas to remain, these a small amount of poison gas that remain not only can pollute the laboratory, also can cause harm to experimenter's life safety, for this, the utility model provides a take linkage valve governing system's ventilation cabinet is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take linked valve governing system's fume chamber to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a fume hood with a linkage valve adjusting system comprises a fume hood body, wherein an air outlet opening is arranged at the top end of the fume hood body in a penetrating way, an operation table is horizontally arranged in the middle section of the ventilation cabinet, a cabinet door is hinged on the outer side of the bottom of the operation table, a ventilation pipe is arranged at the top end of the air outlet opening, a wind collecting cavity is arranged at the bottom end of the air outlet opening, the ventilation pipe and the top end of the ventilation cabinet body are of an integrally formed structure, the diameter of the ventilation pipe is larger than the inner diameter of the air outlet opening, the wind collecting cavity is fixed on the top end of the interior of the ventilation cabinet body through a bolt, and the bottom end of the collecting air cavity is provided with a guide plate, the bottom end of the collecting air cavity is uniformly penetrated and provided with through holes, the guide plate is of a plate-shaped structure with the bottom vertical and the top inclined, the top end of the air collecting cavity is welded and fixed on the bottom end of the air collecting cavity, the bottom of the air collecting cavity is evenly provided with air inlet holes in a penetrating way, and the distance between the bottom end of the guide plate and the inner side of the fume hood body is smaller than the distance between the guide plate and the outer side of the fume hood body.

Preferably, the top of operation panel is equipped with the air supplement pipe, the air supplement pipe is character cut in bas-relief shape tubular structure, and both ends interval equals the length of operation panel about it, and the inside both sides of both ends all with the fume chamber body of air supplement pipe are closely laminated about it.

Preferably, the inside wall of air supply pipe is evenly run through and is provided with the exhaust vent, and the both ends of air supply pipe all are provided with the stopcock.

Preferably, an air expansion cover is arranged inside the collecting air cavity, the diameter of the top end of the air expansion cover is equal to the inner diameter of the air outlet opening, and the diameter of the bottom end of the air expansion cover is equal to the diameter of the bottom end of the collecting air cavity.

Preferably, the thermovent has all been seted up to the bottom both sides of fume chamber body, the inside bottom fixed mounting air-blower of fume chamber body, the connection is equipped with the blast pipe on the gas outlet of air-blower, the blast pipe is kept away from the vertical upwards of one end of air-blower and is run through the operation panel and extend to in the air supply pipe.

Preferably, the inside middle section sliding connection vertical sliding window of fume chamber body, the vertical sliding window is located the top of operation panel, and the equal sliding connection of its left and right sides is on the inner wall of fume chamber body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the bottom of the air outlet opening is provided with the collecting air cavity, the bottom of the collecting air cavity is provided with the guide plate, and the bottom of the guide plate is uniformly provided with the air inlet holes, wherein the collecting air cavity can ensure that the negative pressure is uniformly distributed in the cabinet body, and the guide plate can generate the negative pressure in the horizontal direction on the upper surface of the operating platform, compared with the traditional technology, the utility model can effectively avoid the toxic gas residual condition;

2. this practicality sets up the air-blower on the inside bottom of fume chamber body, is provided with the benefit tuber pipe on the top of operation panel, and has evenly seted up the exhaust vent on the inside wall of benefit tuber pipe, and wherein in the air-blower blew the outside air into the benefit tuber pipe, the benefit tuber pipe discharges the air from the exhaust vent again, compares traditional technology, this practicality can effectively increase the wind speed of the internal portion corner of cabinet, is favorable to exhausting the poison gas of the internal portion of cabinet to the greatest extent, fully guarantees experimenter's safety.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side sectional view of the structure of the present invention;

fig. 3 is a schematic view of the structure of the air supply duct of the present invention.

In the figure: the air conditioner comprises a ventilation cabinet body 1, a ventilation pipe 2, an operation table 3, a cabinet door 4, a vertical sliding window 5, a guide plate 6, a supplementary air pipe 7, an air outlet hole 8, an air inlet hole 9, an air outlet opening 10, a collecting air cavity 11, an air diffuser 12, a through hole 13, a heat dissipation opening 14, an air blower 15 and a blast pipe 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a ventilation cabinet with a linkage valve adjusting system comprises a ventilation cabinet body 1, wherein an air outlet opening 10 is formed in the top end of the ventilation cabinet body 1 in a penetrating mode, an operation table 3 is horizontally arranged in the middle section of the ventilation cabinet body, a cabinet door 4 is hinged to the outer side of the bottom of the ventilation cabinet body, a ventilation pipe 2 is arranged at the top end of the air outlet opening 10, a collecting air cavity 11 is arranged at the bottom end of the air outlet opening 10, the ventilation pipe 2 and the top end of the ventilation cabinet body 1 are of an integrally formed structure, the diameter of the ventilation pipe 2 is larger than the inner diameter of the air outlet opening 10, the collecting air cavity 11 is fixed to the inner top end of the ventilation cabinet body 1 in a bolt connection mode, a guide plate 6 is arranged at the bottom end of the collecting air cavity 11, through holes 13 are uniformly formed in the bottom end of the collecting air cavity 11 in a penetrating mode, the guide plate 6, and the bottom of guide plate 6 is less than the outside interval of guide plate 6 and fume chamber body 1 with the inboard interval of fume chamber body 1, and the mounted position of guide plate 6 is as shown in fig. 2, and fresh air inlet 9 has evenly been seted up to its bottom, and its effect is the negative pressure that produces the horizontal direction at the upper surface of operation panel 3, makes outside air level get into the internal portion of cabinet, fully takes away the poisonous gas that the internal portion of cabinet produced.

The top of operation panel 3 is equipped with air supply pipe 7, and air supply pipe 7 is character cut in bas-relief font tubular structure, and both ends interval equals operation panel 3's length about it, and air supply pipe 7 about both ends all closely laminate with the inside both sides of fume chamber body 1, and air supply pipe 7's structural shape is as shown in fig. 1 and fig. 3, and it is along outside the top of operation panel 3 through pipe strap fixed mounting.

Evenly run through on the inside wall of benefit tuber pipe 7 and seted up exhaust vent 8, the both ends of benefit tuber pipe 7 all are provided with the stopcock, behind the stopcock stopover the tip of benefit tuber pipe 7, then the both ends of benefit tuber pipe 7 all have the back cover.

An air expanding cover 12 is arranged inside the collecting air cavity 11, the diameter of the top end of the air expanding cover 12 is equal to the inner diameter of the air outlet opening 10, and the diameter of the bottom end of the air expanding cover 12 is equal to the diameter of the bottom end of the collecting air cavity 11.

The thermovent 14 has all been seted up to the bottom both sides of fume chamber body 1, fume chamber body 1's inside bottom fixed mounting air-blower 15, it is equipped with blast pipe 16 to connect on air-blower 15's the gas outlet, blast pipe 16 keeps away from the vertical upwards of one end of air-blower 15 and runs through in operation panel 3 and extend to air supplement pipe 7, air-blower 15 sends the outside air into air supplement pipe 7 through blast pipe 16 in, the effect of mending the wind is played, the inside circulation of air speed of the reinforcing cabinet, especially the wind speed of corner department, be favorable to thoroughly exhausting the poisonous gas of the internal portion of cabinet.

Inside middle section sliding connection vertical sliding window 5 of fume chamber body 1, vertical sliding window 5 is located the top of operation panel 3, and the equal sliding connection in its left and right sides is on the inner wall of fume chamber body 1.

The working principle is as follows: the utility model discloses in, be provided with in the bottom of air-out opening 10 and collect wind chamber 11, and be provided with diffusion cover 12 in the inside of collecting wind chamber 11, the bottom of collecting wind chamber 11 is provided with guide plate 6. In the experimental process, the external ventilation equipment generates negative pressure at the air outlet opening 10, then the collection air cavity 11 and the diffusion cover 12 are used for uniformly distributing the negative pressure inside the cabinet, and the guide plate 6 is used for generating the negative pressure in the horizontal direction on the upper surface of the operating table 3, so that the toxic gas inside the cabinet can be exhausted. The inside bottom of fume chamber body 1 is provided with air-blower 15, the top of operation panel 3 is outer along being provided with air supply pipe 7, in the experimentation, can open air-blower 15 in good time, utilize air-blower 15 to absorb outside air and send into in air supply pipe 7, blow off in the exhaust vent 8 of air supply pipe 7 inboard at last, whole circulation of air speed that can strengthen the internal portion of cabinet, especially the air flow rate of corner department, be favorable to the inside poison gas of the complete internal portion of row of abundant thorough, guarantee experimenter's safety.

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

Claims

1. The utility model provides a take linked valve governing system's fume chamber, includes fume chamber body (1), its characterized in that: the top end of the fume hood body (1) is provided with an air outlet opening (10) in a penetrating manner, the middle section of the interior of the fume hood body is horizontally provided with an operating platform (3), the outer side of the bottom of the fume hood body is hinged with a cabinet door (4), the top end of the air outlet opening (10) is provided with a ventilating pipe (2), the bottom end of the air outlet opening (10) is provided with a collecting air cavity (11), the ventilating pipe (2) and the top end of the fume hood body (1) are of an integrally formed structure, the diameter of the ventilating pipe (2) is larger than the inner diameter of the air outlet opening (10), the collecting air cavity (11) is fixed on the top end of the interior of the fume hood body (1) in a bolt connection manner, the bottom end of the collecting air cavity (11) is provided with a guide plate (6), the bottom end of the collecting air cavity (11) is uniformly provided with a through hole (13) in a penetrating manner, the bottom of the air inlet is uniformly penetrated and provided with an air inlet hole (9), and the distance between the bottom end of the guide plate (6) and the inner side of the fume hood body (1) is smaller than the distance between the outer sides of the guide plate (6) and the fume hood body (1).

2. A fumehood with a linked valve adjustment system according to claim 1, wherein: the top of operation panel (3) is equipped with air supplement pipe (7), air supplement pipe (7) are character cut in bas-relief shape tubular structure, and both ends interval equals the length of operation panel (3) about it, and air supplement pipe (7) about both ends all closely laminate with the inside both sides of fume chamber body (1).

3. A fumehood with a linked valve adjustment system according to claim 2, wherein: the inside wall of air supply pipe (7) is evenly run through and is seted up exhaust vent (8), and the both ends of air supply pipe (7) all are provided with the stopcock.

4. A fumehood with a linked valve adjustment system according to claim 1, wherein: an air expanding cover (12) is arranged inside the collecting air cavity (11), the diameter of the top end of the air expanding cover (12) is equal to the inner diameter of the air outlet opening (10), and the diameter of the bottom end of the air expanding cover (12) is equal to the diameter of the bottom end of the collecting air cavity (11).

5. A fumehood with a linked valve adjustment system according to claim 1, wherein: the heat dissipation port (14) have all been seted up to the bottom both sides of fume chamber body (1), inside bottom fixed mounting air-blower (15) of fume chamber body (1), it is equipped with blast pipe (16) to connect on the gas outlet of air-blower (15), the vertical upwards of one end that air-blower (15) were kept away from in blast pipe (16) just extends to air supplement pipe (7) and runs through operation panel (3).

6. A fumehood with a linked valve adjustment system according to claim 1, wherein: inside middle section sliding connection vertical sliding window (5) of fume chamber body (1), vertical sliding window (5) are located the top of operation panel (3), and the equal sliding connection of its left and right sides is on the inner wall of fume chamber body (1).