Constant-temperature and constant-humidity laboratory exhaust system

Abstract

The utility model discloses a constant temperature and humidity laboratory exhaust system, which relates to the technical field of exhaust systems, and comprises a carriage and a ventilation box, the carriage is fixedly installed on the top edge in a laboratory, the ventilation box is installed in the center of the top in the laboratory, and an active ventilation assembly is fixedly connected between the ventilation box and the carriage; the active ventilation assembly comprises an air pipe, the inner end of the air pipe is communicated with the ventilation box, and the active ventilation assembly controls and adjusts the position of the outer end of the air pipe at the top in the laboratory; the outer end of the air pipe is fixedly connected with a corrugated pipe; the top of the ventilation box is rotationally connected with an electric control device, and the electric control device controls rotation of the ventilation box. The electric control device is fixedly connected to the center of the top in the laboratory; an embedded pipe is arranged in the laboratory wall body, one end of the embedded pipe is communicated with the ventilation box, and the other end of the embedded pipe is fixedly connected with a filtering device used for filtering gas.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust systems, in particular to a constant temperature and humidity laboratory exhaust system. Background Art

[0002] Exhaust system refers to the method of preventing harmful substances generated by equipment during the production process from polluting the workshop air. Harmful substances are often captured on the spot through exhaust hoods or air inlets, and transported to purification equipment through pipes for treatment. After meeting the emission standards, they are reused or discharged into the atmosphere. When there are multiple such equipment in production, and the local exhaust volume of each equipment does not need to be large, for economic considerations, they are often connected as a whole with pipes to form a local exhaust system. The entire system shares one purification equipment and fan.

[0003] Existing laboratory exhaust systems are usually passive exhaust, that is, the exhaust system is fixedly installed inside the laboratory and works at intervals to exhaust and ventilate the laboratory. Various experiments are often carried out in laboratories, especially chemical experiments. Common products usually include acidic gases, organic gases, etc. that are harmful to human health. The laboratory bench is far away from the exhaust system, which makes it difficult for the exhaust system to passively capture harmful gases with a density greater than that of air. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a constant temperature and humidity laboratory exhaust system, which solves the problem raised in the background technology.

[0005] In order to achieve the above purpose, the utility model proposes a constant temperature and humidity laboratory exhaust system.

[0006] As a further solution of the utility model:

[0007] A constant temperature and humidity laboratory exhaust system, comprising a slide and a ventilation box, wherein the slide is fixedly installed at the top edge of the laboratory, the ventilation box is installed at the center of the top of the laboratory, and an active ventilation component is fixedly connected between the ventilation box and the slide; the active ventilation component comprises an air pipe, the inner end of the air pipe is connected to the ventilation box, and the active ventilation component controls and adjusts the position of the outer end of the air pipe at the top of the laboratory; the outer end of the air pipe is fixedly connected to a bellows;

[0008] The top of the ventilation box is rotatably connected to an electric control device, and the electric control device controls the rotation of the ventilation box; the electric control device is fixedly connected to the center of the top of the laboratory.

[0009] Furthermore, a pre-buried pipe is provided in the laboratory wall, one end of the pre-buried pipe is connected to the ventilation box, the other end of the pre-buried pipe is fixedly connected to a filter device for filtering gas, and one end of the filter device is provided with an exhaust port through the wall of the laboratory.

[0010] Furthermore, the filtering device is fixedly connected to the lower end of the laboratory wall for easy access by experimenters, and a detachable activated carbon bag is provided in the filtering device.

[0011] Furthermore, the active ventilation component also includes an electrically driven telescopic rod, which is horizontally fixedly connected to the outside of the ventilation box. A slide rail is horizontally arranged on the outside of the electrically driven telescopic rod and is slidably connected to a sliding sleeve. The lower end of the sliding sleeve is fixedly provided with an air pipe.

[0012] Furthermore, the ventilation box is horizontally fixedly connected to a fixing frame, the outer end of the fixing frame is fixedly connected to a motor, the output end of the motor passes through the fixing frame and is fixedly connected to a screw rod, and the screw rod is threadedly penetrated by the upper end of the sliding sleeve.

[0013] Furthermore, pull ropes are provided on both sides of the bellows, and the pull ropes are used to pull the bellows downward and lift the bellows respectively.

[0014] Furthermore, the bottom of the ventilation box is a passive ventilation port that operates at intervals.

[0015] Furthermore, a PCB remote control panel is arranged on the outside of the electric control device.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The ventilation box continuously ventilates the laboratory passively. When an experiment that generates harmful gases is conducted, the electronic control device is driven to rotate through the PCB remote control panel, causing the electric drive telescopic rod to slide in the slide. At the same time, the motor drives the lead screw to rotate, and then the sleeve moves the air pipe to the top of the test bench, aligning the bellows. The pull rope is pulled to lower the bellows to a suitable height, so that the harmful gases generated by the experiment are sucked away by the bellows. This is conducive to the harmful gases generated by the experiment being sucked away by the bellows, thereby ensuring the safety of the experimenters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structural installation of the utility model;

[0019] Figure 2 It is a structural stereogram of the utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0021] In the figure: 1. Slide; 2. Ventilation box; 3. Electronic control device; 4. Active ventilation assembly; 41. Electric drive telescopic rod; 43. Sliding sleeve; 44. Screw rod; 45. Motor; 51. Air pipe; 52. Bellows; 6. Embedded pipe; 7. Filter device. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-3 As shown, a constant temperature and humidity laboratory exhaust system includes a slide 1 and a ventilation box 2, wherein the slide 1 is fixedly installed at the top edge of the laboratory, and the ventilation box 2 is installed at the top center of the laboratory, and an active ventilation component 4 is fixedly connected between the ventilation box 2 and the slide 1; the active ventilation component 4 includes an air pipe 51, the inner end of the air pipe 51 is connected to the ventilation box 2, and the active ventilation component 4 controls and adjusts the position of the outer end of the air pipe 51 at the top of the laboratory; the outer end of the air pipe 51 is fixedly connected to a bellows 52;

[0024] The top of the ventilation box 2 is rotatably connected to an electric control device 3, and the electric control device 3 controls the rotation of the ventilation box 2; the electric control device 3 is fixedly connected to the top center of the laboratory.

[0025] Preferably, a pre-buried pipe 6 is provided in the laboratory wall, one end of the pre-buried pipe 6 is connected to the ventilation box 2, and the other end of the pre-buried pipe 6 is fixedly connected to a filter device 7 for filtering gas, and one end of the filter device 7 is provided with an exhaust port through the wall of the laboratory.

[0026] Preferably, the filter device 7 is fixedly connected to the lower end of the laboratory wall for easy access by experimenters, and the filter device 7 is provided with a detachable activated carbon bag.

[0027] Preferably, the active ventilation component 4 also includes an electrically driven telescopic rod 41, which is horizontally fixedly connected to the outside of the ventilation box 2, and a slide rail is horizontally arranged on the outside of the electrically driven telescopic rod 41 and is slidably connected to a slide sleeve 43, and an air pipe 51 is fixedly arranged at the lower end of the slide sleeve 43.

[0028] Preferably, the ventilation box 2 is horizontally fixedly connected to a fixing frame, the outer end of the fixing frame is fixedly connected to a motor 45, the output end of the motor 45 passes through the fixing frame and is fixedly connected to a screw rod 44, and the screw rod 44 is threadedly penetrated by the upper end of the sliding sleeve 43.

[0029] Preferably, pull ropes are provided on both sides of the bellows 52 , and the pull ropes are used to pull the bellows 52 downward and lift the bellows 52 , respectively.

[0030] Preferably, the bottom of the ventilation box 2 is a passive ventilation port that operates at intervals.

[0031] Preferably, a PCB remote control panel is provided on the outer side of the electric control device 3 .

[0032] Working principle:

[0033] When in use, the ventilation box 2 continuously ventilates the laboratory passively. When conducting an experiment that generates harmful gases, the electric control device 3 is driven to rotate through the PCB remote control panel, so that the electric drive telescopic rod 41 slides in the slide 1, and the motor 45 drives the screw rod 44 to rotate, and then the sliding sleeve 43 moves the air pipe 51 to the top of the test bench, so that the bellows 52 is aligned, and the pull rope is pulled to make the bellows 52 drop to a suitable height, so that the harmful gases generated by the experiment are sucked away by the bellows 52; it is conducive to the harmful gases generated by the experiment being sucked away by the bellows 52, thereby ensuring the safety of the experimenters;

[0034] After the gas is sucked away, it enters the ventilation box 2 and then enters the filter device 7 along the pre-buried pipe 6 from the ventilation box 2. After the activated carbon bag in the filter device 7 absorbs and filters, the gas is discharged from the exhaust port of the filter device 7. The staff ensures the stable operation of the filter device 7 by replacing the activated carbon bag.

[0035] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A constant temperature and humidity laboratory exhaust system, characterized in that: The invention comprises a slide (1) and a ventilation box (2), wherein the slide (1) is fixedly installed on the top edge of a laboratory, and the ventilation box (2) is installed at the center of the top of the laboratory, and an active ventilation component (4) is fixedly connected between the ventilation box (2) and the slide (1); the active ventilation component (4) comprises an air pipe (51), the inner end of the air pipe (51) is connected to the ventilation box (2), and the active ventilation component (4) controls and adjusts the position of the outer end of the air pipe (51) at the top of the laboratory; the outer end of the air pipe (51) is fixedly connected to a bellows (52); The top of the ventilation box (2) is rotatably connected to an electric control device (3), and the electric control device (3) controls the rotation of the ventilation box (2); the electric control device (3) is fixedly connected to the center of the top of the laboratory.

2. A constant temperature and humidity laboratory exhaust system according to claim 1, characterized in that: A pre-buried pipe (6) is arranged in the wall of the laboratory, one end of the pre-buried pipe (6) is connected to the ventilation box (2), the other end of the pre-buried pipe (6) is fixedly connected to a filter device (7) for filtering gas, and one end of the filter device (7) is provided with an exhaust port through the wall of the laboratory.

3. A constant temperature and humidity laboratory exhaust system according to claim 2, characterized in that: The filtering device (7) is fixedly connected to the lower end of the laboratory wall for easy access by experimenters, and an activated carbon bag is detachably arranged in the filtering device (7).

4. A constant temperature and humidity laboratory exhaust system according to claim 3, characterized in that: The active ventilation component (4) further comprises an electrically driven telescopic rod (41), wherein the electrically driven telescopic rod (41) is horizontally fixedly connected to the outside of the ventilation box (2), a slide rail is horizontally arranged on the outside of the electrically driven telescopic rod (41) and is slidably connected to a slide sleeve (43), and an air pipe (51) is fixedly arranged at the lower end of the slide sleeve (43).

5. A constant temperature and humidity laboratory exhaust system according to claim 4, characterized in that: The ventilation box (2) is horizontally fixedly connected to a fixing frame, the outer end of the fixing frame is fixedly connected to a motor (45), the output end of the motor (45) passes through the fixing frame and is fixedly connected to a screw rod (44), and the screw rod (44) is threadedly penetrated through the upper end of the sliding sleeve (43).

6. A constant temperature and humidity laboratory exhaust system according to claim 5, characterized in that: Pull ropes are provided on both sides of the bellows (52), and the pull ropes are used to pull the bellows (52) downwards and lift the bellows (52) respectively.

7. A constant temperature and humidity laboratory exhaust system according to claim 6, characterized in that: The bottom of the ventilation box (2) is a passive ventilation port that operates at intervals.

8. A constant temperature and humidity laboratory exhaust system according to claim 7, characterized in that: A PCB remote control panel is arranged on the outside of the electric control device (3).

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