Intelligent ventilation and exhaust system for laboratory

Abstract

The utility model discloses an intelligent ventilation and exhaust system for a laboratory. The intelligent ventilation and exhaust system comprises the laboratory and a conveying pipe, uniformly distributed fans are arranged in the middle of the top end of the laboratory, air outlets of the fans are fixedly connected with air pipes, and the bottom ends of the air pipes extend into the interlayer at the upper end of the laboratory; the conveying pipe is fixedly connected to the top wall of the interlayer, the upper surface of the conveying pipe is fixedly connected with the bottom ends of the evenly-distributed air pipes, the conveying pipe is communicated with the air pipes, evenly-distributed exhaust pipes are arranged at the bottom end of the conveying pipe, all the evenly-distributed exhaust pipes are communicated with one conveying pipe, and the bottom ends of all the exhaust pipes extend into the laboratory; according to the intelligent ventilation and exhaust system for the laboratory, the airflow direction can be controlled, fresh air can be specifically introduced into a specific area in the laboratory, mixing of different air volumes is effectively promoted, the air fluidity in the laboratory is improved, and local dead corners and mixing areas are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to an intelligent ventilation and exhaust system for a laboratory. Background Art

[0002] The laboratory intelligent ventilation and exhaust system is designed to ensure the air quality inside the laboratory, maintain safety and improve efficiency. However, through automatic control and intelligent adjustment, the intelligent ventilation system can achieve efficient air circulation and exhaust, ensure the stability and balance of the internal environment of the laboratory, help improve the accuracy and repeatability of the experiment, reduce the interference of external environmental factors on the experimental results, and improve work efficiency and the repeatability of the experiment;

[0003] Traditional laboratory intelligent ventilation and exhaust systems adopt a fixed wind direction design, that is, the position and direction of the ventilation and exhaust vents are fixed;

[0004] The traditional laboratory intelligent ventilation and exhaust system has the following problems: it is impossible to adjust the direction of the airflow according to the specific needs and changes inside the laboratory, resulting in the ventilation effect may not be flexible and adaptable to changes. For this reason, we propose a laboratory intelligent ventilation and exhaust system. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a laboratory intelligent ventilation and exhaust system that can control the direction of airflow and introduce fresh air into specific areas in the laboratory in a targeted manner, which can effectively promote the mixing of different air volumes, improve the air flow inside the laboratory, reduce local dead corners and mixing areas, and effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent ventilation and exhaust system for a laboratory, comprising a laboratory and a conveying pipe;

[0007] Laboratory: Evenly distributed fans are set in the middle of the top, and the air outlets of the fans are fixedly connected with air ducts, and the bottom ends of the air ducts extend to the mezzanine at the upper end of the laboratory;

[0008] Delivery pipe: It is fixedly connected to the top wall of the interlayer, the upper surface of the delivery pipe is fixedly connected to the bottom end of the evenly distributed air duct, the delivery pipe is connected to the air duct respectively, the bottom end of the delivery pipe is provided with evenly distributed exhaust pipes, the evenly distributed exhaust pipes are all connected to a delivery pipe, the bottom end of the exhaust pipe extends to the inside of the laboratory, the bottom end of the exhaust pipe is fixedly connected to an exhaust box, and the exhaust box is provided with a wind direction adjustment mechanism inside;

[0009] Among them: it also includes a single-chip microcomputer, which is arranged on the top wall of the laboratory. The input end of the single-chip microcomputer is electrically connected to the output end of the fan, which can control the direction of airflow and introduce fresh air into specific areas in the laboratory in a targeted manner. It can effectively promote the mixing of different air volumes, improve the air flow inside the laboratory, and reduce local dead corners and mixing areas.

[0010] Furthermore, it also includes a humidity sensor, which is arranged on the left inner wall of the laboratory. The humidity sensor is bidirectionally electrically connected to the single-chip microcomputer to facilitate timely regulation of the operation of the ventilation and exhaust system.

[0011] Furthermore, the wind direction adjustment mechanism includes an air guide plate and a rotating shaft, and the rotating shaft is rotatably connected between the left and right inner walls of the exhaust box. The outer surface of the rotating shaft is fixedly sleeved with an air guide plate for adjusting the direction of the wind flow.

[0012] Furthermore, the wind direction adjustment mechanism also includes a single-groove pulley, a double-groove pulley and a belt. The single-groove pulley is fixedly mounted on the right end of the rotating shaft at the front end and the right end of the rotating shaft at the rear end. The double-groove pulleys are fixedly mounted on the right end of the rotating shaft in the middle. The single-groove pulley at the front end and the double-groove pulley in the middle of the front end, the two adjacent double-groove pulleys, the double-groove pulley in the middle of the rear end and the single-groove pulley at the rear end are all connected by belt transmission to provide continuous and stable adjustment.

[0013] Furthermore, the wind direction adjustment mechanism also includes a motor, which is installed on the left side of the exhaust box by bolts. The right end of the output shaft of the motor is fixedly connected to the left end of the frontmost rotating shaft, and the input end of the motor is electrically connected to the output end of the single-chip microcomputer to drive the wind direction adjustment mechanism to operate.

[0014] Furthermore, it also includes exhaust fans, which are arranged in installation openings on the left and right sides of the laboratory. The input end of the exhaust fan is electrically connected to the output end of the single-chip microcomputer to facilitate exhaust.

[0015] Furthermore, it also includes a sealing door, which is hinged to the lower end of the front side of the laboratory through a hinge to facilitate personnel to enter the laboratory.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the intelligent ventilation and exhaust system of the laboratory has the following advantages:

[0017] When it is necessary to adjust the wind direction of air flowing into the laboratory, the motor is regulated by the single-chip microcomputer. The output shaft of the motor drives the frontmost rotating shaft to rotate, and the rotating shaft drives the frontmost air guide plate to rotate a certain angle according to the needs of the staff. At the same time, the frontmost rotating shaft drives the frontmost single-groove pulley to rotate, and the frontmost single-groove pulley is driven by a belt to rotate the double-groove pulley in the middle and the single-groove pulley at the end. However, the belt drive system usually has lower operating noise, which is particularly important for the laboratory environment. It can reduce the interference caused by the transmission system itself and ensure that the working environment of the experimenter is quiet and comfortable. Then drive the remaining rotating shafts to rotate, and at the same time drive the remaining air guide plates to rotate with the rotation angle of the frontmost air guide plate, so as to adjust the direction of the wind flow, control the airflow direction, and introduce fresh air into specific areas in the laboratory in a targeted manner. It can effectively promote the mixing of different air volumes, improve the air flow inside the laboratory, reduce local dead angles and mixing areas, and is conducive to the stability of experimental conditions and the accuracy of experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a schematic diagram of the structure of the utility model in cross section;

[0020] Figure 3 It is a schematic diagram of the structure of the utility model enlarged at A;

[0021] Figure 4 It is a schematic diagram of the structure of the bottom section of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure enlarged at B of the utility model.

[0023] In the figure: 1 laboratory, 2 sealing door, 3 exhaust fan, 4 air duct, 5 fan, 6 conveying pipe, 7 interlayer, 8 exhaust duct, 9 exhaust bellows, 10 wind direction adjustment mechanism, 101 motor, 102 air guide plate, 103 single groove pulley, 104 rotating shaft, 105 double groove pulley, 106 belt, 11 single chip microcomputer, 12 humidity sensor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] See also Figure 1-5 ,This embodiment provides a technical solution: a laboratory intelligent ventilation and exhaust system, including a laboratory 1 and a conveying pipe 6;

[0026] Laboratory 1: The top middle part is provided with evenly distributed fans 5, the air outlets of the fans 5 are fixedly connected with air ducts 4, the bottom ends of the air ducts 4 are extended to the interlayer 7 at the upper end of the laboratory 1, and also includes a humidity sensor 12, which is arranged on the left inner wall of the laboratory 1, and the humidity sensor 12 is bidirectionally electrically connected to the single-chip computer 11, and also includes exhaust fans 3, which are arranged in the installation openings on the left and right sides of the laboratory 1, and the input end of the exhaust fan 3 is electrically connected to the output end of the single-chip computer 11, and also includes a sealing door 2, which is hinged to the laboratory through a hinge. At the lower end of the front side of the room 1, when the air humidity inside the laboratory 1 is high, a series of problems may occur, such as mold growth, equipment damage, experimental result deviation, etc. The fan 5 generates airflow by rotating the wind wheel, introduces fresh air into the air duct 4, and then the fresh air flows into the inside of the conveying pipe 6 for diversion, and is diverted to the exhaust pipe 8 in turn, and then discharged through the exhaust box 9. At the same time, the exhaust fan 3 is controlled by the single-chip microcomputer 11. When the fresh air is discharged into the laboratory 1 through the exhaust box 9, the polluted air in the laboratory 1 is discharged through the exhaust fan 3;

[0027] The conveying pipe 6 is fixedly connected to the top wall of the interlayer 7, the upper surface of the conveying pipe 6 is fixedly connected to the bottom end of the uniformly distributed air duct 4, the conveying pipe 6 is respectively connected to the air duct 4, the bottom end of the conveying pipe 6 is provided with uniformly distributed exhaust pipes 8, the uniformly distributed exhaust pipes 8 are all connected to a conveying pipe 6, the bottom ends of the exhaust pipes 8 extend to the interior of the laboratory 1, the bottom ends of the exhaust pipes 8 are fixedly connected to the exhaust box 9, the exhaust box 9 is provided with a wind direction adjustment mechanism 10, the wind direction adjustment mechanism 10 includes a wind guide plate 102 and a rotating shaft 104, the rotating shaft 104 is rotatably connected between the left and right inner walls of the exhaust box 9, the outer surface of the rotating shaft 104 is fixedly sleeved with a wind guide plate 102, the wind direction adjustment mechanism The structure 10 also includes a single-groove pulley 103, a double-groove pulley 105 and a belt 106. The single-groove pulley 103 is fixedly sleeved on the right end of the rotating shaft 104 at the front end and the right end of the rotating shaft 104 at the rear end. The double-groove pulleys 105 are fixedly sleeved on the right end of the rotating shaft 104 in the middle. The single-groove pulley 103 at the front end and the double-groove pulley 10 in the middle of the front end, the two adjacent double-groove pulleys 10, and the double-groove pulley 105 in the middle of the rear end and the single-groove pulley 103 at the rear end are all connected by belt 106. However, the single-groove pulley 103 at the front end and the double-groove pulley 10 in the middle of the front end, the two adjacent double-groove pulleys 10, and the double-groove pulley 10 in the middle of the rear end are all connected by belt 106. The diameters of the double-groove pulley 105 and the single-groove pulley 103 at the rear end are inconsistent, which can achieve the effect of belt transmission. The wind direction adjustment mechanism 10 also includes a motor 101. The motor 101 is installed on the left side of the exhaust box 9 by bolts. The right end of the output shaft of the motor 101 is fixedly connected to the left end of the frontmost rotating shaft 104. The input end of the motor 101 is electrically connected to the output end of the single-chip microcomputer 11. When it is necessary to adjust the wind direction of the air flowing into the laboratory 1, the single-chip microcomputer 11 is used to control the operation of the motor 101. The output shaft of the motor 101 drives the frontmost rotating shaft 104 to rotate, and the rotating shaft 104 drives the frontmost wind guide plate 102 to rotate a certain angle according to the needs of the staff. The frontmost rotating shaft 104 drives the frontmost single-groove pulley 103 to rotate, and the frontmost single-groove pulley 103 is transmitted to the middle double-groove pulley 105 and the rearmost single-groove pulley 103 through the belt 106 to rotate, driving the remaining rotating shafts 104 to rotate, and at the same time driving the remaining air guide plates 102 to rotate with the rotation angle of the frontmost air guide plate 102, so as to adjust the direction of the wind flow, control the flow direction of the air flow, and introduce fresh air into a specific area in the laboratory in a targeted manner, which can effectively promote the mixing of different air volumes, improve the air uniformity inside the laboratory, reduce local dead angles and mixing areas, and be beneficial to the stability of experimental conditions and the accuracy of experimental results;

[0028] Among them: it also includes a single-chip microcomputer 11, which is arranged on the top wall of the laboratory 1, and the input end of the single-chip microcomputer 11 is electrically connected to the output end of the fan 5. The single-chip microcomputer 11 and the humidity sensor 12 are first set with a humidity threshold. When the humidity reaches the set threshold, the humidity sensor 12 transmits a signal to the single-chip microcomputer 11, and the single-chip microcomputer 11 makes a judgment and adjusts the operation of the fan 5.

[0029] The working principle of a laboratory intelligent ventilation and exhaust system provided by the utility model is as follows: first, a humidity threshold is set for the single-chip microcomputer 11 and the humidity sensor 12. Then, when the humidity inside the laboratory 1 is high, a series of problems may be caused, such as mold growth, equipment damage, experimental result deviation, etc. When the humidity reaches the set threshold, the humidity sensor 12 transmits a signal to the single-chip microcomputer 11. The single-chip microcomputer 11 makes a judgment and adjusts the operation of the fan 5. The fan 5 generates an airflow by rotating the wind wheel, and introduces fresh air into the air duct 4. The fresh air then flows into the inside of the delivery pipe 6 for diversion, and is diverted to the exhaust duct 8 in turn, and then discharged through the exhaust box 9. At the same time, the operation of the exhaust fan 3 is regulated by the single-chip microcomputer 11. When the fresh air is discharged into the laboratory 1 through the exhaust box 9, the polluted air in the laboratory 1 is discharged through the exhaust fan 3. When it is necessary to adjust the wind direction of the air flowing into the laboratory 1, the operation of the motor 101 is regulated by the single-chip microcomputer 11. The output shaft of the motor 101 The frontmost rotating shaft 104 is driven to rotate, and the rotating shaft 104 drives the frontmost air guide plate 102 to rotate a certain angle according to the needs of the staff. At the same time, the frontmost rotating shaft 104 drives the frontmost single-groove pulley 103 to rotate. However, the frontmost single-groove pulley 103 and the double-groove pulley 10 in the middle of the front end, the two adjacent double-groove pulleys 10, and the double-groove pulley 105 in the middle of the rear end and the single-groove pulley 103 at the rear end are all connected by belt 106 transmission, thereby driving the remaining rotating shafts 104 to rotate, and at the same time driving the remaining air guide plates 102 to rotate with the rotation angle of the frontmost air guide plate 102, so as to adjust the direction of the windflow, control the direction of the airflow, and introduce fresh air into specific areas in the laboratory in a targeted manner, which can effectively promote the mixing of different air volumes, improve the air uniformity inside the laboratory, reduce local dead angles and mixing areas, and are beneficial to the stability of experimental conditions and the accuracy of experimental results.

[0030] It is worth noting that the specific model of the single chip microcomputer 11 disclosed in the above embodiment is S7-200, the exhaust fan 3 can be selected from ASC15-2-1DE, the fan 5 can be selected from KP140A2E02-W, the humidity sensor 12 can be freely configured according to the actual application scenario, and it is recommended to use C15-M53R, and the motor 101 can be selected from YBE4-0.75KW-2. The single chip microcomputer 11 controls the exhaust fan 3, the fan 5, the humidity sensor 12 and the motor 101 using methods commonly used in the prior art.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A laboratory intelligent ventilation and exhaust system, characterized by: It includes a laboratory (1) and a delivery pipe (6); The laboratory (1) is provided with evenly distributed fans (5) at the middle of the top, and the air outlets of the fans (5) are fixedly connected to the air ducts (4), and the bottom ends of the air ducts (4) extend into the interlayer (7) at the upper end of the laboratory (1); The delivery pipe (6) is fixedly connected to the top wall of the interlayer (7), the upper surface of the delivery pipe (6) is fixedly connected to the bottom ends of the evenly distributed air pipes (4), the delivery pipes (6) are respectively connected to the air pipes (4), the bottom ends of the delivery pipes (6) are provided with evenly distributed exhaust pipes (8), the evenly distributed exhaust pipes (8) are all connected to one delivery pipe (6), the bottom ends of the exhaust pipes (8) extend to the interior of the laboratory (1), the bottom ends of the exhaust pipes (8) are fixedly connected to exhaust boxes (9), and the interior of the exhaust boxes (9) is provided with wind direction adjustment mechanisms (10); Wherein: it also includes a single chip computer (11), the single chip computer (11) is arranged on the top wall of the laboratory (1), and the input end of the single chip computer (11) is electrically connected to the output end of the fan (5).

2. According to claim 1, a laboratory intelligent ventilation and exhaust system is characterized in that: It also comprises a humidity sensor (12), wherein the humidity sensor (12) is arranged on the left inner wall of the laboratory (1), and the humidity sensor (12) is bidirectionally electrically connected to the single-chip computer (11).

3. The intelligent laboratory ventilation and exhaust system according to claim 1, characterized in that: The wind direction adjustment mechanism (10) comprises an air guide plate (102) and a rotating shaft (104). The rotating shaft (104) is rotatably connected between the left and right inner walls of the exhaust box (9), and the outer surface of the rotating shaft (104) is fixedly sleeved with the air guide plate (102).

4. The intelligent laboratory ventilation and exhaust system according to claim 3 is characterized in that: The wind direction adjustment mechanism (10) further comprises a single-groove pulley (103), a double-groove pulley (105) and a belt (106); the single-groove pulley (103) is fixedly sleeved on the right end of the frontmost rotating shaft (104) and the right end of the rearmost rotating shaft (104); the double-groove pulleys (105) are fixedly sleeved on the right end of the middle rotating shaft (104); the single-groove pulley (103) at the frontmost end and the double-groove pulley (105) at the middle of the frontmost end, two adjacent double-groove pulleys (105), and the double-groove pulley (105) at the middle of the rearmost end and the single-groove pulley (103) at the rearmost end are all connected by a belt (106).

5. The intelligent laboratory ventilation and exhaust system according to claim 3 is characterized by: The wind direction adjustment mechanism (10) further comprises a motor (101), wherein the motor (101) is mounted on the left side of the exhaust box (9) by means of bolts, the right end of the output shaft of the motor (101) is fixedly connected to the left end of the frontmost rotating shaft (104), and the input end of the motor (101) is electrically connected to the output end of the single chip computer (11).

6. The intelligent laboratory ventilation and exhaust system according to claim 1, characterized in that: It also includes exhaust fans (3), which are arranged in installation openings on the left and right sides of the laboratory (1), and the input end of the exhaust fan (3) is electrically connected to the output end of the single-chip computer (11).

7. The intelligent laboratory ventilation and exhaust system according to claim 1, characterized in that: It also comprises a sealing door (2), which is hinged to the lower end of the front side of the laboratory (1) through a hinge.

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