Ventilation pipeline for constant-temperature and constant-humidity laboratory air conditioner

Abstract

The utility model discloses a constant temperature and humidity laboratory air conditioner ventilating duct relates to laboratory air conditioner ventilating duct technical field, including ventilating duct body and pipeline limit plate, the pipeline limit plate is installed in the front wall surface of ventilating duct body, the lower wall surface of ventilating duct body is provided with the drainage groove, and the drainage groove is equipped with the drainage groove. A ventilation structure is installed on the inner wall face of the ventilation pipeline body, and a sealing structure is installed on the front wall face of the ventilation structure. The electric telescopic rod drives the port sealing ring to be separated from the pipeline limiting plate through the port sealing plate, and air in a laboratory is output in a plurality of ventilation holes through the gap between the pipeline limiting plate and the port sealing plate along the front wall fan blade protection plate and the rear wall fan blade protection plate under the action of the ventilation fan blades and is finally guided out along the ventilation pipeline body. The problems that an existing ventilation pipeline for a constant-temperature and constant-humidity laboratory air conditioner is not provided with a port sealing device, external air flows back to a laboratory along a ventilation pipeline body, and the internal humidity is affected are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of ventilation ducts for laboratory air conditioning, and in particular to a ventilation duct for a constant temperature and humidity laboratory air conditioning system. Background Technology

[0002] Social development and scientific progress are inseparable from experiments, and a good experimental environment not only has a positive guiding effect on experimental results to a certain extent, but also protects the health of experimental personnel. Nowadays, gas emissions are unavoidable in experiments across various industries;

[0003] Existing ventilation ducts for constant temperature and humidity laboratory air conditioning lack port sealing devices. External air flowing back into the laboratory along the duct body will affect the internal humidity. Existing ventilation ducts for constant temperature and humidity laboratory air conditioning lack safety structures. When the temperature difference between the inside and outside air is large, the backflow of condensate will cause the experiment in the laboratory to fail. Summary of the Invention

[0004] The technical problem this invention aims to solve is that existing ventilation ducts for constant temperature and humidity laboratory air conditioning lack port sealing devices. External air flowing back into the laboratory along the duct body affects the internal humidity. Furthermore, existing ventilation ducts for constant temperature and humidity laboratory air conditioning lack safety structures. When there is a large temperature difference between the inside and outside air, the backflow of condensate can lead to experimental failure in the laboratory.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is a ventilation duct for a constant temperature and humidity laboratory air conditioner, including a ventilation duct body and a duct limiting plate. The duct limiting plate is installed on the front wall of the ventilation duct body. A drainage groove is opened on the lower wall inside the ventilation duct body. A ventilation structure is installed on the inner wall of the ventilation duct body. A sealing structure is installed on the front wall of the ventilation structure. A safety structure is installed on the inner wall of the ventilation duct body. A monitoring structure is installed inside the safety structure.

[0006] As a further embodiment of this utility model: the ventilation structure includes: a fan blade fixing frame, a ventilation fan blade, a rear wall fan blade protective plate, and a front wall fan blade protective plate; the fan blade fixing frame is installed on the inner wall surface of the ventilation duct body, the ventilation fan blade is installed on the inner wall surface of the fan blade fixing frame, the rear wall fan blade protective plate is connected to the rear wall surface of the ventilation fan blade, and the front wall fan blade protective plate is connected to the front wall surface of the ventilation fan blade.

[0007] As a further embodiment of this utility model: the sealing structure includes: an electric telescopic rod, a port sealing plate, and a port sealing ring; the electric telescopic rod is installed on the front wall surface of the front fan blade protective plate, the port sealing plate is installed on the front wall surface of the electric telescopic rod, and the port sealing ring is connected to the front wall surface of the port sealing plate.

[0008] As a further embodiment of this utility model: the safety structure includes: a counterflow fixing block, several auxiliary frames, and several water-absorbing pads; the counterflow fixing block is installed on the inner wall of the ventilation duct body and is located behind the rear fan blade protective plate; several auxiliary frames are respectively installed on the inner wall of the ventilation duct body and are arranged at equal intervals behind the counterflow fixing block; several water-absorbing pads are respectively connected to the rear wall of the counterflow fixing block and the several auxiliary frames.

[0009] As a further embodiment of this utility model: the monitoring structure includes: a monitoring bracket, a wind speed detector, and two temperature and humidity detectors; the monitoring bracket is installed on the inner wall of the counterflow fixing block, the wind speed detector is installed on the inner wall of the monitoring bracket, and the two temperature and humidity detectors are respectively installed on the inner wall of the ventilation duct body and located at the outlet end of the ventilation duct body.

[0010] As a further embodiment of this utility model, both the rear wall fan blade protective plate and the front wall fan blade protective plate are provided with several ventilation holes.

[0011] As a further embodiment of this utility model, the drainage channel is inclined at an angle to the horizontal plane.

[0012] As a further embodiment of this utility model: the front wall surfaces of several of the auxiliary frames are respectively provided with an inclination angle.

[0013] The present invention adopts the above technical solution and has the following advantages compared with the prior art:

[0014] After the ventilation fan blades are activated, the electric telescopic rod drives the port sealing ring to disengage from the pipe limiting plate via the port sealing plate. Under the action of the ventilation fan blades, the air in the laboratory passes through the gap between the pipe limiting plate and the port sealing plate, along the front wall fan blade protection plate, through the rear wall fan blade protection plate, and is output through several ventilation holes. Finally, it is discharged along the ventilation duct body, which solves the problem that the existing ventilation ducts for constant temperature and humidity laboratory air conditioning do not have port sealing devices, and the external air flows back into the laboratory along the ventilation duct body, affecting the internal humidity.

[0015] During exhaust, if the temperature difference between the inside and outside is too large, condensation will occur at the outlet end of the ventilation duct body. Water droplets will form on the inner wall of the ventilation duct body and flow down and out of the ventilation duct body along the drainage channel. Some water droplets will collect under several auxiliary frames and backflow fixing blocks and be absorbed by several water-absorbing pads to prevent backflow. This solves the problem that existing ventilation ducts for constant temperature and humidity laboratory air conditioning lack a safety structure, and when the temperature difference between the inside and outside air is large, the backflow of condensate will cause the experiment in the laboratory to fail. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of a ventilation duct for a constant temperature and humidity laboratory air conditioner in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the ventilation structure of a ventilation duct for a constant temperature and humidity laboratory air conditioner in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of a monitoring structure for a ventilation duct used in a constant temperature and humidity laboratory air conditioning system, as described in an embodiment of this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the overall structure of a ventilation duct for a constant temperature and humidity laboratory air conditioner according to an embodiment of this utility model.

[0020] In the diagram: 1. Ventilation duct body; 2. Duct limiting plate; 3. Drainage channel; 4. Fan blade fixing bracket; 5. Ventilation fan blade; 6. Rear wall fan blade protection plate; 7. Front wall fan blade protection plate; 8. Electric telescopic rod; 9. Port sealing plate; 10. Port sealing ring; 11. Backflow fixing block; 12. Auxiliary frame; 13. Water absorption pad; 14. Monitoring fixing frame; 15. Wind speed detector; 16. Temperature and humidity detector; 17. Ventilation hole. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Please see Figures 1-4 A ventilation duct for a constant temperature and humidity laboratory air conditioner includes a ventilation duct body 1 and a duct limiting plate 2. The duct limiting plate 2 is installed on the front wall of the ventilation duct body 1. A drainage groove 3 is provided on the lower wall inside the ventilation duct body 1. A ventilation structure is installed on the inner wall of the ventilation duct body 1. A sealing structure is installed on the front wall of the ventilation structure. A safety structure is installed on the inner wall of the ventilation duct body 1. A monitoring structure is installed inside the safety structure. The ventilation structure includes: a fan blade fixing frame 4, a ventilation fan blade 5, a rear fan blade protection plate 6, and a front fan blade protection plate 7. The fan blade fixing frame 4 is installed on the inner wall of the ventilation duct body 1. The ventilation fan blade 5 is installed on the inner wall of the fan blade fixing frame 4. The rear fan blade protection plate 6 is connected to the rear wall of the ventilation fan blade 5. The front fan blade protection plate 7 is connected to the front wall of the ventilation fan blade 5.

[0023] Please see Figure 2The sealing structure includes: an electric telescopic rod 8, a port sealing plate 9, and a port sealing ring 10; the electric telescopic rod 8 is installed on the front wall surface of the front fan blade protection plate 7, the port sealing plate 9 is installed on the front wall surface of the electric telescopic rod 8, and the port sealing ring 10 is connected to the front wall surface of the port sealing plate 9.

[0024] Please see Figure 3 The safety structure includes: a backflow fixing block 11, several auxiliary frames 12, and several water-absorbing pads 13; the backflow fixing block 11 is installed on the inner wall of the ventilation duct body 1 and is located behind the rear fan blade protection plate 6; several auxiliary frames 12 are respectively installed on the inner wall of the ventilation duct body 1 and are arranged at equal intervals behind the backflow fixing block 11; several water-absorbing pads 13 are respectively connected to the back wall of the backflow fixing block 11 and the several auxiliary frames 12.

[0025] Please see Figure 3 The monitoring structure includes: a monitoring fixture 14, a wind speed detector 15, and two temperature and humidity detectors 16. The monitoring fixture 14 is installed on the inner wall of the counterflow fixing block 11, the wind speed detector 15 is installed on the inner wall of the monitoring fixture 14, and the two temperature and humidity detectors 16 are respectively installed on the inner wall of the ventilation duct body 1 and located at the outlet end of the ventilation duct body 1.

[0026] Please see Figure 2 Both the rear wall fan blade protective plate 6 and the front wall fan blade protective plate 7 are provided with several ventilation holes 17. When in use, the air in the laboratory is driven by the ventilation fan blade 5, passes through the gap between the pipe limiting plate 2 and the port sealing plate 9, and is output through the rear wall fan blade protective plate 6 via the gap between the front wall fan blade protective plate 7 and the rear wall fan blade protective plate 6 in several ventilation holes 17.

[0027] Please see Figure 4 The drainage channel 3 is inclined at an angle to the horizontal plane. When in use, if the temperature difference between the inside and outside is too large during exhaust, condensation will occur at the outlet end of the ventilation duct body 1, and water droplets will form on the inner wall of the ventilation duct body 1 and flow down.

[0028] Please see Figure 4 The front walls of several auxiliary frames 12 are respectively provided with an inclination angle. When in use, the water droplets in front of the several auxiliary frames 12 that are closer to the ventilation fan blades 5 flow backward under the action of the wind through the inclination angles provided on the front walls of the several auxiliary frames 12 and are absorbed by several water-absorbing pads 13. The remaining part gradually evaporates.

[0029] In Example 1, after the ventilation fan blade 5 is started, the electric telescopic rod 8 drives the port sealing ring 10 to disengage from the pipe limiting plate 2 through the port sealing plate 9. Under the action of the ventilation fan blade 5, the air in the laboratory passes through the gap between the pipe limiting plate 2 and the port sealing plate 9, along the front wall fan blade protection plate 7, through the rear wall fan blade protection plate 6, and is output in several ventilation holes 17, and finally out along the ventilation duct body 1.

[0030] Specifically, when the indoor humidity is too high, after the ventilation fan blades 5 are activated, the electric telescopic rod 8 drives the port sealing ring 10 to disengage from the pipe limiting plate 2 through the port sealing plate 9. Under the action of the ventilation fan blades 5, the air in the laboratory passes through the gap between the pipe limiting plate 2 and the port sealing plate 9, along the front wall fan blade protection plate 7, through the rear wall fan blade protection plate 6, and is output through several ventilation holes 17. Finally, it is discharged along the ventilation duct body 1. When the indoor humidity reaches the set humidity, the electric telescopic rod 8 drives the port sealing ring 10 to press against the pipe limiting plate 2 again through the port sealing plate 9, and re-closes the ventilation duct body 1 to prevent external moisture from flowing back into the ventilation duct body 1.

[0031] In Example 2, if the temperature difference between the inside and outside is too large during exhaust, condensation will occur at the outlet end of the ventilation duct body 1. Water droplets will form on the inner wall of the ventilation duct body 1 and flow down and out of the ventilation duct body 1 along the drainage groove 3. Some water droplets will gather below several auxiliary frames 12 and the counterflow fixing block 11 and be absorbed by several water-absorbing pads 13 to prevent backflow.

[0032] Specifically, during exhaust, if the temperature difference between the inside and outside is too large, condensation will occur at the outlet end of the ventilation duct body 1. Water droplets will form on the inner wall of the ventilation duct body 1 and flow down and out of the ventilation duct body 1 along the drainage groove 3. Some water droplets will gather below several auxiliary frames 12 and the counterflow fixing block 11 and be absorbed by several water-absorbing pads 13 to prevent backflow and affect the humidity of the laboratory. During this period, water droplets in front of several auxiliary frames 12 that are closer to the ventilation fan blades 5 will flow backward through the angles opened on the front wall of several auxiliary frames 12 under the action of the wind and be absorbed by several water-absorbing pads 13. The remaining part will gradually evaporate.

[0033] Example 3: Specifically, two temperature and humidity detectors 16 monitor the temperature and humidity near the ventilation duct body 1, and the indoor temperature control system controls the extension and retraction of the electric telescopic rod 8 to exchange the air between the ventilation duct body 1 and the laboratory.

[0034] Specifically, the temperature near the ventilation duct body 1 is monitored by two temperature and humidity detectors 16. When the humidity inside and outside the laboratory is similar, the indoor temperature control system controls the extension and retraction of the electric telescopic rod 8 to exchange the air in the ventilation duct body 1 with the air in the laboratory. When the outdoor temperature is higher than the indoor temperature, if the indoor temperature needs to be increased, the electric telescopic rod 8 drives the port sealing ring 10 to disengage from the duct limit plate 2 through the port sealing plate 9. Some air flows into the laboratory along the ventilation duct body 1 to improve the efficiency of the laboratory heater. When the indoor temperature reaches the set value, the port sealing plate 9 resets.

[0035] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A constant temperature and humidity laboratory air using ventilation duct, comprising a ventilation duct body (1) and a duct limiting plate (2), characterized in that, The pipeline limiting plate (2) is installed on the front wall of the ventilation pipeline body (1), the lower wall of the ventilation pipeline body (1) is provided with a drainage groove (3), the inner wall of the ventilation pipeline body (1) is provided with a ventilation structure, the front wall of the ventilation structure is provided with a sealing structure, the inner wall of the ventilation pipeline body (1) is provided with a safety structure, and the safety structure is provided with a monitoring structure; The ventilation structure comprises a fan blade fixing frame (4), ventilation fan blades (5), a rear wall fan blade protection plate (6) and a front wall fan blade protection plate (7). The fan blade fixing frame (4) is installed on the inner wall of the ventilation pipeline body (1), the ventilation fan blades (5) are installed on the inner wall of the fan blade fixing frame (4), the rear wall fan blade protection plate (6) is connected to the rear wall of the ventilation fan blades (5), and the front wall fan blade protection plate (7) is connected to the front wall of the ventilation fan blades (5).

2. The constant temperature and humidity laboratory air using ventilation duct according to claim 1, characterized in that, The sealing structure comprises an electric telescopic rod (8), a port sealing plate (9) and a port sealing ring (10). The electric telescopic rod (8) is installed on the front wall of the front wall fan blade protection plate (7), the port sealing plate (9) is installed on the front wall of the electric telescopic rod (8), and the port sealing ring (10) is connected to the front wall of the port sealing plate (9).

3. The constant temperature and humidity laboratory air using ventilation duct according to claim 1, characterized in that, The safety structure comprises a backflow fixing block (11), a plurality of auxiliary frames (12) and a plurality of water absorption pads (13). The backflow fixing block (11) is installed on the inner wall of the ventilation pipeline body (1) and located behind the rear wall fan blade protection plate (6), a plurality of auxiliary frames (12) are respectively installed on the inner wall of the ventilation pipeline body (1) and equidistantly arranged behind the backflow fixing block (11), and a plurality of water absorption pads (13) are respectively connected to the rear walls of the backflow fixing block (11) and the plurality of auxiliary frames (12).

4. The constant temperature and humidity laboratory air using ventilation duct according to claim 3, characterized in that, The monitoring structure comprises a monitoring fixing frame (14), a wind speed detector (15) and two temperature and humidity detectors (16). The monitoring fixing frame (14) is installed on the inner wall of the backflow fixing block (11), the wind speed detector (15) is installed on the inner wall of the monitoring fixing frame (14), and the two temperature and humidity detectors (16) are respectively installed on the inner wall of the ventilation pipeline body (1) and located at the outlet end of the ventilation pipeline body (1).

5. The constant temperature and humidity laboratory air using ventilation duct according to claim 1, characterized in that, The rear wall fan blade protection plate (6) and the front wall fan blade protection plate (7) are both provided with a plurality of ventilation holes (17).

6. The constant temperature and humidity laboratory air using ventilation duct according to claim 1, characterized in that, An inclination is formed between the drainage groove (3) and the horizontal plane.

7. The constant temperature and humidity laboratory air using ventilation duct according to claim 3, characterized in that, An inclination is formed on the front wall of each of the plurality of auxiliary frames (12). An inclination is formed on the front wall of each of the plurality of auxiliary frames (12).

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