Laboratory exhaust device
By designing a laboratory exhaust device with an annular structure, using the shell, connecting pipe and exhaust pipe system, the problem of toxic gas diffusion in the laboratory is solved, targeted exhaust of the laboratory bench is achieved, and the damage to laboratory personnel is reduced.
Patent Information
- Application Number
- CN202422211903.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The problem of toxic gases in the laboratory causing harm to laboratory personnel is difficult to effectively avoid in the existing technology.
Design a laboratory exhaust device with an annular structure, including a housing, a connecting pipe and an exhaust pipe, which encloses the periphery of the reagent bottle, and discharges toxic gases out of the laboratory in a timely manner through the exhaust plate, a connecting pipe and an exhaust pipe.
It realizes targeted exhaust to the laboratory bench area, reduces the diffusion of toxic gases, reduces the damage to laboratory personnel, and is suitable for reagent bottles of different heights, expanding the scope of application.
Smart Images
Figure CN223210152U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of laboratory equipment, and more particularly, to a laboratory exhaust device. Background Art
[0002] In laboratories, toxic gases are often produced during chemical or other experiments. These gases, a serious source of pollution, are characterized by small-scale, high concentrations, and diverse types. These gases can contaminate laboratory areas and pose a risk to laboratory personnel.
[0003] In summary, how to prevent toxic gases in the laboratory from causing harm to laboratory personnel is an urgent problem to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a laboratory exhaust device to prevent toxic gases in the laboratory from causing harm to laboratory personnel.
[0005] In order to achieve the above objectives, this application provides the following technical solutions:
[0006] A laboratory exhaust device, characterized in that it includes: an outer shell, a connecting pipe and an exhaust pipe; wherein the outer shell is used to be set above a laboratory bench, the laboratory bench can place reagent bottles, the outer shell is annular, and is used to enclose the periphery of all the reagent bottles; the outer shell includes an exhaust plate, the exhaust plate is a hollow structure, and the exhaust plate is provided with exhaust holes on a first side facing the reagent bottles; one end of the connecting pipe is connected to the second side of the exhaust plate facing away from the reagent bottles, and the other end of the connecting pipe is connected to the exhaust pipe; the exhaust pipe is provided with an exhaust device.
[0007] In some embodiments, the exhaust plate further includes a partition plate, which is disposed in the inner cavity of the exhaust plate and located between the first side and the second side of the exhaust plate, and the partition plate is provided with a through hole; the exhaust plate has a connecting hole connected to the connecting pipe.
[0008] In some embodiments, the partition plate is parallel to the first side of the exhaust plate, and the partition plate is parallel to the second side of the exhaust plate; and / or, the through holes are distributed in a single row or multiple rows.
[0009] In some embodiments, the exhaust plate further includes a partition plate, which is disposed in the inner cavity of the exhaust plate. The partition plate is located between the first side and the second side of the exhaust plate, and a guide gap is provided between at least a portion of the circumferential side wall of the partition plate and the inner wall of the exhaust plate.
[0010] In some embodiments, the housing further includes a transparent baffle, and the transparent baffle and the exhaust plate form the annular structure.
[0011] In some embodiments, the outer shell is a rectangular ring, and at least one side of the outer shell is formed by the transparent baffle, and the other sides of the outer shell are formed by the exhaust plate, and the exhaust plates on adjacent sides are an internally connected integrated structure; or, the outer shell is a circular ring, and the transparent baffle and the exhaust plate are both arc-shaped.
[0012] In some embodiments, there are at least two exhaust plates that are distributed adjacent to each other in sequence, and the two adjacent exhaust plates are connected; or, there is one exhaust plate that is an integrated structure.
[0013] In some embodiments, the exhaust holes are distributed along multiple rows, and the exhaust holes in two adjacent rows are staggered; or, the exhaust holes are distributed along a single row;
[0014] And / or, the exhaust hole is configured to be a perfect circle, an ellipse or a polygon.
[0015] In some embodiments, the connecting pipe is provided with a regulating valve, and the regulating valve is capable of adjusting the flow cross-sectional area of the connecting pipe.
[0016] In some embodiments, the housing is provided as one or more; in the case of multiple housings, the number of the connecting pipes corresponds to the number of the housings, and at least two connecting pipes are connected to the same exhaust pipe;
[0017] And / or, the experimental bench is provided with experimental equipment, and the housing is used to be provided on the experimental equipment.
[0018] The laboratory exhaust device provided in the present application, by providing an outer shell with a ring structure, encloses all reagent bottles on the laboratory bench, can block the gas generated during the experiment, reduce the spread of toxic gases to a larger area, and provide a premise for targeted exhaust of the laboratory bench area. The toxic gas enclosed by the outer shell is discharged from the laboratory through the exhaust plate, connecting pipe, and exhaust pipe, thereby achieving targeted and timely exhaust of the laboratory bench area, reducing the harm of toxic gases to laboratory personnel.
[0019] Moreover, in the laboratory exhaust device provided by the present application, the outer shell is annular in structure, and the top of the outer shell is open, so that the outer shell will not interfere with the height of the reagent bottle, nor will it interfere with the connection between the reagent bottle and other components, such as pipes, etc., so that the laboratory exhaust device can exhaust reagent bottles of different heights, and also facilitates the connection between reagent bottles and other components, thereby expanding the scope of application of the laboratory exhaust device. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.
[0021] Figure 1 An axonometric diagram of a laboratory exhaust device provided in an embodiment of the present application;
[0022] Figure 2 for Figure 1 A partial enlarged view of
[0023] Figure 3 A schematic diagram of the structure of the connection between the exhaust plate and the connecting pipe in the laboratory exhaust device provided in an embodiment of the present application;
[0024] Figure 4 Schematic diagram of the internal structure of the exhaust plate in the laboratory exhaust device provided in an embodiment of the present application.
[0025] Description of reference numerals:
[0026] 1 is the outer shell, 2 is the connecting pipe, 3 is the exhaust pipe, 4 is the experimental table, 40 is the reagent bottle, 5 is the exhaust plate, 6 is the exhaust hole, 7 is the transparent baffle, 8 is the regulating valve, 9 is the partition plate, 10 is the through hole, and 100 is the experimental equipment. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting of the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the embodiments of the present application, "one or more" refers to one, two or more; "and / or" describes the association relationship of associated objects, indicating that three relationships may exist; for example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship.
[0029] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0030] The "multiple" involved in the embodiments of the present application means greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the words "first" and "second" are only used for the purpose of distinguishing the description and cannot be understood as indicating or implying relative importance or order.
[0031] The "parallel" involved in this application refers to "substantially parallel" in actual operation. "Substantially parallel" can be understood as parallel with a certain error.
[0032] refer to Figure 1 The laboratory exhaust device provided in the embodiment of the present application includes a shell 1, a connecting pipe 2 and an exhaust pipe 3.
[0033] The experimental table 4 can be used to place experimental equipment 100, which can be a gas chromatograph or other experimental equipment. There can be one or more experimental equipment 100 on the experimental table 4, and the experimental equipment 100 has a reagent bottle 40 for the experiment. Of course, the experimental table 4 can be provided with no experimental equipment 100, and only the reagent bottle 40 for the experiment can be placed.
[0034] In some embodiments, the housing 1 is disposed above the experimental table 4. The housing 1 can be placed directly on the surface of the experimental table 4, or directly contact the surface of the experimental table 4 by bonding, magnetism, or other methods, so that the housing 1 can operate stably.
[0035] When the housing 1 and the experimental table 4 are in contact with each other, a gap is likely to exist between the housing 1 and the experimental table 4. To prevent toxic gases from escaping from the gap, the housing 1 can be sealed to the experimental table 4. For example, the housing 1 and the experimental table 4 are sealed by a sealing ring, a sealing strip, or a sealant.
[0036] In some other embodiments, the housing 1 is disposed on an experimental device 100 , and the experimental device 100 is located on a test bench 4 .
[0037] The housing 1 can be arranged at the same height as the experimental device 100 or at different heights. In the case where the housing 1 and the experimental device 100 are arranged at different heights, refer to Figure 1-Figure 2 , the housing 1 is located at the upper part of the experimental equipment 100 .
[0038] The housing 1 can be directly placed on the experimental device 100 , or directly contact the surface of the experimental device 100 through other means such as bonding, magnetic attraction, etc., so that the housing 1 can operate stably.
[0039] If the housing 1 and the experimental device 100 are in contact with each other, a gap is likely to exist between the housing 1 and the experimental device 100. To prevent toxic gases from escaping through the gap, the housing 1 and the experimental device 100 can be sealed. For example, the housing 1 and the experimental device 100 are sealed using a sealing ring, a sealing strip, or a sealant.
[0040] In the embodiment of the present application, the housing 1 is annular in structure and surrounds all the reagent bottles 40 to block the gas generated during the experiment. In this case, the reagent bottles 40 can be located on the experimental equipment 100 or directly on the experimental table 4.
[0041] The housing 1 includes an exhaust plate 5, which is a hollow structure. The first side of the exhaust plate 5 faces the reagent bottle 40, and the second side of the exhaust plate 5 faces away from the reagent bottle 40. The first side of the exhaust plate 5 is provided with an exhaust hole 6; the second side of the exhaust plate 5 is connected to one end of the connecting pipe 2, and the other end of the connecting pipe 2 is connected to the exhaust pipe 3; the exhaust pipe 3 is provided with an exhaust device.
[0042] Before toxic gases are generated, the exhaust device is activated. Toxic gases generated during the experiment are blocked by the housing 1 and, under the action of the exhaust device, enter the exhaust plate 5 through the exhaust hole 6 and are then promptly discharged from the laboratory through the connecting pipe 2 and the exhaust pipe 3.
[0043] According to the above exhaust principle, the laboratory exhaust device provided by the embodiments of the present application can achieve targeted and timely exhaust of the experimental bench area, reducing the harm of toxic gases to laboratory personnel.
[0044] Moreover, in the laboratory exhaust device provided by the embodiments of the present application, the outer shell 1 has an annular structure, and the top of the outer shell 1 is open, so that the outer shell 1 does not interfere with the height of the reagent bottle 40, nor does it interfere with the connection between the reagent bottle 40 and other components, such as pipe fittings, etc. This enables the laboratory exhaust device to exhaust reagent bottles 40 of different heights, and also facilitates the connection between the reagent bottle 40 and other components, expanding the scope of application of the laboratory exhaust device.
[0045] In the embodiments of the present application, the exhaust plate 5 can be in the shape of a flat plate, L-shaped, U-shaped, "凵"-shaped, arc-shaped or annular, etc.
[0046] In some embodiments, there are at least two exhaust plates 5 and they are distributed adjacent to each other in sequence, and the interiors of two adjacent exhaust plates 5 are connected. Exemplarily, when the exhaust plate 5 is in the shape of a flat plate, two exhaust plates 5 can form an L-shaped structure, three exhaust plates 5 can form a "凵"-shaped structure, and four exhaust plates 5 can form an annular structure.
[0047] In some other embodiments, there is one exhaust plate 5 and it is of an integral structure. In this case, the exhaust plate 5 can be in the shape of a flat plate, L-shaped, U-shaped, "凵"-shaped, arc-shaped or annular, etc.
[0048] Refer to Figure 2 , the outer shell 1 further includes a transparent baffle 7, and the transparent baffle 7 and the exhaust plate 5 enclose an annular structure.
[0049] Among them, the transparent baffle 7 can be a glass baffle, an acrylic baffle or other materials, which facilitates experimenters to further observe the experimental process.
[0050] In actual situations, the outer shell 1 can also include a baffle, and the baffle does not have exhaust holes 6. For example, the baffle and the exhaust plate 5 enclose an annular structure, or the transparent baffle 7, the baffle and the exhaust plate 5 enclose an annular structure. Among them, the exhaust plate 5, the transparent baffle 7 and the baffle are all higher than the reagent bottle 40, thereby strengthening the blocking effect on the gas generated by the reagent bottle 40 during the experiment.
[0051] In some embodiments, the outer shell 1 is a rectangular ring, at least one side of the outer shell 1 is formed by the transparent baffle 7, and the other sides of the outer shell 1 are formed by the exhaust plate 5, and the exhaust plates 5 on adjacent sides are of an integral structure with internal connection. Exemplarily, refer to Figure 2 , one side of the outer shell 1 is composed of the transparent baffle 7, and the other three adjacent sides are composed of the exhaust plate 5. The exhaust plates 5 on the three adjacent sides are of an integral structure with internal connection, realizing the exhaust of the gas within the range surrounded by the three-sided enclosure of the experimental bench.
[0052] In some other embodiments, the housing 1 is a regular pentagonal ring structure, wherein at least one side of the housing 1 is formed by a transparent baffle 7, and the other sides are formed by exhaust plates 5, and the exhaust plates 5 on adjacent sides are an internally connected integrated structure.
[0053] In actual situations, the shell may also be other polygonal ring structures and is not limited to the above two types.
[0054] In some other embodiments, the housing 1 is annular, and the transparent baffle 7 and the exhaust plate 5 are both arc-shaped. The arc-shaped exhaust plate 5 and the arc-shaped transparent baffle 7 together form a ring, and the exhaust plate 5 has any arc that can be used for exhaust.
[0055] refer to Figure 2 The exhaust holes 6 on the exhaust plate 5 can be distributed in two rows. Each row is provided with a plurality of exhaust holes 6, and the exhaust holes 6 in two adjacent rows are staggered. In this way, the exhaust area can be increased, and the exhaust effect and efficiency can be improved.
[0056] In actual situations, the exhaust holes 6 on the exhaust plate 5 may be distributed in three rows, or in four or more rows, and the exhaust holes 6 in two adjacent rows may be staggered.
[0057] In the case that the exhaust holes 6 on the exhaust plate 5 are distributed in multiple rows, the exhaust holes 6 may be evenly distributed on the entire exhaust plate 5 or unevenly distributed.
[0058] Of course, the exhaust holes 6 on the exhaust plate 5 may also be arranged in a single row.
[0059] The exhaust hole 6 may be circular, elliptical, polygonal or other shapes, which is not limited in the embodiment of the present application.
[0060] refer to Figure 2 The connecting pipe 2 is provided with a regulating valve 8 for adjusting the flow cross-sectional area of the connecting pipe 2, so as to control the exhaust rate. In this way, the exhaust rate can be adjusted according to the specific experiment to meet the requirements of different experiments on the exhaust rate.
[0061] refer to Figure 3-Figure 4 (Regulating valve 8 is not shown in the figure.) A partition plate 9 is also provided within the interior of exhaust plate 5. Partition plate 9 is located between the first and second sides of exhaust plate 5 and is parallel to both the first and second side surfaces of exhaust plate 5. It should be noted that the first side surface of exhaust plate 5 is located on the first side of exhaust plate 5, and the second side surface of exhaust plate 5 is located on the second side of exhaust plate 5.
[0062] The partition plate 9 is provided with through holes 10. The through holes 10 are distributed in a single row or multiple rows, and each row includes a plurality of through holes 10. The through holes 10 can be evenly distributed on the entire partition plate 9, or the through holes 10 can be unevenly distributed on the entire partition plate 9.
[0063] The through hole 10 may be circular, elliptical, polygonal or other shapes, which is not limited in the embodiment of the present application.
[0064] The second side surface of the exhaust plate 5 has a connecting hole connected to the connecting pipe 2, and the multiple through holes 10 on the partition plate 9 are opposite to the connecting hole. In this way, after the gas enters the interior of the exhaust plate 5 through the exhaust hole 6, the gas is blocked by the partition plate 9 during the process of flowing to the connecting pipe 2, reducing the gas flow rate in the area opposite to the connecting hole, so that the gas in other areas can flow more easily to the connecting hole and the connecting pipe 2, so that the airflow on the second side of the exhaust plate 5 can flow to the connecting pipe 2 more evenly, thereby improving the exhaust effect and effectively reducing the concentration of toxic gases in the experimental bench area.
[0065] It should be noted that, in the partition plate 9, a plurality of through holes 10 may be selected not to be opposite to the communication holes. In order to facilitate production and manufacturing, the through holes 10 may be selected to be evenly distributed on the entire partition plate 9.
[0066] In some other embodiments, a partition plate 9 is disposed within the inner cavity of the exhaust plate 5, between the first and second sides of the exhaust plate 5, and a flow-guiding gap is defined between at least a portion of the circumferential sidewall of the partition plate 9 and the inner wall of the exhaust plate 5. Thus, after airflow enters the exhaust plate 5 through the exhaust holes 6, it flows through the flow-guiding gap into the connecting pipe 2. The flow-guiding gap improves the uniformity of airflow through the exhaust plate 5, thereby enhancing exhaust efficiency.
[0067] It should be noted that the thickness direction of the partition plate 9 is consistent with the distribution direction of the first side and the second side of the exhaust plate 5. Exemplarily, the thickness direction of the partition plate 9 is parallel to the distribution direction of the first side and the second side of the exhaust plate 5, and the partition plate 9 can be parallel to both the first side surface and the second side surface of the exhaust plate 5.
[0068] The partition plate 9 may be provided with through holes 10 to further improve the exhaust effect. Of course, the partition plate 9 may not be provided with the through holes 10.
[0069] The partition plate 9 can be connected to the exhaust plate 5 by welding, bonding, magnetism, clamping or other means; or the partition plate 9 can be integrally formed with the exhaust plate 5 so that the partition plate 9 can achieve stable operation during the exhaust process. This embodiment of the present application does not limit this.
[0070] refer to Figure 1The housing 1 can be provided as one or more, with a plurality being at least two. When there are multiple housings 1, they can correspond one-to-one to multiple lab benches 4 in the laboratory, and the number of connecting pipes 2 corresponds one-to-one to the number of housings 1, with all connecting pipes 2 connected to the same exhaust pipe 3. By adjusting the regulating valve 8 on the connecting pipe 2, it is possible to exhaust multiple lab benches 4 simultaneously, or to exhaust a single lab bench 4, thereby achieving targeted exhaust for the lab benches.
[0071] The method of using the laboratory exhaust device includes: adjusting the regulating valve 8 corresponding to the laboratory bench 4 to exhaust the laboratory bench 4 that needs to be exhausted; starting the exhaust device on the exhaust pipe 3, and discharging the gas within the enclosure range of the shell 1 out of the laboratory through the exhaust plate 5, the connecting pipe 2 and the exhaust pipe 3.
[0072] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A laboratory exhaust device, characterized in that: include: A housing (1), a connecting pipe (2) and an exhaust pipe (3); The housing (1) is used to be arranged above a laboratory table (4), the laboratory table (4) can be used to place reagent bottles (40), and the housing (1) is annular and is used to enclose the periphery of all the reagent bottles (40); The housing (1) comprises an exhaust plate (5), the exhaust plate (5) is a hollow structure, and an exhaust hole (6) is provided on a first side of the exhaust plate (5) facing the reagent bottle (40); One end of the connecting tube (2) is connected to the second side of the exhaust plate (5) facing away from the reagent bottle (40), and the other end of the connecting tube (2) is connected to the exhaust pipe (3); The exhaust pipe (3) is provided with an exhaust device.
2. The laboratory exhaust device according to claim 1, characterized in that The exhaust plate (5) further comprises a partition plate (9), wherein the partition plate (9) is arranged in the inner cavity of the exhaust plate (5), and the partition plate (9) is located between the first side and the second side of the exhaust plate (5), and the partition plate (9) is provided with a through hole (10); The exhaust plate (5) has a communication hole communicating with the connecting pipe (2).
3. The laboratory exhaust device according to claim 2, characterized in that: The partition plate (9) is parallel to the first side surface of the exhaust plate (5), and the partition plate (9) is parallel to the second side surface of the exhaust plate (5); And / or, the through holes (10) are distributed in a single row or multiple rows.
4. The laboratory exhaust device according to claim 1, characterized in that The exhaust plate (5) further comprises a partition plate (9), wherein the partition plate (9) is arranged in the inner cavity of the exhaust plate (5), the partition plate (9) is located between the first side and the second side of the exhaust plate (5), and a flow guide gap is provided between at least a portion of the circumferential side wall of the partition plate (9) and the inner wall of the exhaust plate (5).
5. The laboratory exhaust device according to claim 1, characterized in that: The housing (1) further comprises a transparent baffle (7), and the transparent baffle (7) and the exhaust plate (5) form the housing (1) in an annular structure.
6. The laboratory exhaust device according to claim 5, characterized in that: The housing (1) is a rectangular ring, and at least one side of the housing (1) is formed by the transparent baffle (7), and the other sides of the housing (1) are formed by the exhaust plate (5), and the exhaust plates (5) on adjacent sides are an integrated structure with internal communication; Alternatively, the housing (1) is annular, and the transparent baffle (7) and the exhaust plate (5) are both arc-shaped.
7. The laboratory exhaust device according to claim 1, characterized in that: There are at least two exhaust plates (5) which are sequentially distributed adjacent to each other, and the two adjacent exhaust plates (5) are connected; Alternatively, the exhaust plate (5) is one and is an integrated structure.
8. The laboratory exhaust device according to claim 1, characterized in that: The exhaust holes (6) are distributed along multiple rows, and the exhaust holes (6) in two adjacent rows are staggered; or, the exhaust holes (6) are distributed along a single row; And / or, the exhaust hole (6) is configured to be a perfect circle, an ellipse or a polygon.
9. The laboratory exhaust device according to claim 1, characterized in that: The connecting pipe (2) is provided with a regulating valve (8), and the regulating valve (8) is capable of adjusting the flow cross-sectional area of the connecting pipe (2).
10. The laboratory exhaust device according to any one of claims 1 to 9, characterized in that: The housing (1) is provided as one or more; in the case where there are multiple housings (1), the number of the connecting pipes (2) corresponds to the number of the housings (1), and at least two connecting pipes (2) are connected to the same exhaust pipe (3); And / or, the experimental table (4) is provided with an experimental device (100), and the housing (1) is used to be provided on the experimental device (100).