A constant temperature and humidity adjusting device for laboratory

Abstract

The utility model relates to laboratory environment regulation and control equipment technical field, proposes a constant temperature and humidity adjusting device for laboratory, including equipment shell, the inner wall top of equipment shell is fixedly connected with humidity control box, temperature control box, air supply box and power supply box respectively, the side of equipment shell is provided with control panel, the top of equipment shell is provided with shunt mixing device, in the utility model, through the cooperative work of shunt plate, double mixed air impeller and shunt mixing device with the shunt blade of band pass hole, realize airflow secondary penetration mixing, ensure that the temperature and humidity airflow after temperature control box, humidity control box adjustment fully fuses, solved the problem that traditional device airflow mixes unevenly and leads to local temperature and humidity deviation big, can form temperature and humidity even airflow quickly, significantly improve the constant temperature and humidity precision of laboratory environment, through above technical scheme, solved the problem that the air supply coverage range is limited in the prior art, and there is obvious dead angle.

Description

Technical Field

[0001] This utility model relates to the technical field of laboratory environmental control equipment, specifically to a laboratory constant temperature and humidity control device. Background Technology

[0002] In laboratory scientific research and testing, the stability and uniformity of temperature and humidity are crucial prerequisites for ensuring the accuracy and repeatability of experimental results. Excessive deviations in temperature and humidity directly affect the validity of test data. Therefore, as a core supporting equipment in laboratories, the temperature and humidity control device's control precision, coverage, and adaptability directly determine the efficiency and quality of experimental work.

[0003] According to a public disclosure of a constant temperature and humidity regulating device (publication number: CN218393727U), it includes: a cover and a control box. The side walls at both ends of the cover are open. The control box is connected to the cover. A regulating pump is installed in the inner cavity of the control box. An installation groove is opened on the side wall where the control box connects to the cover. A filter plate is inserted into the inner cavity of the installation groove. A limiting block is provided on the upper side of the filter plate to restrict its position. A telescopic tube is connected to the end of the cover away from the control box. A docking frame is fixedly connected to the outer end of the telescopic tube. A guide mechanism is provided between the docking frame and the cover. Compared with the existing constant temperature and humidity test chamber, this utility model separates the test chamber and the control structure. This allows for the replacement of test chambers of different sizes according to different experiments, thus facilitating a smoother experimental process. At the same time, the docking frame can be replaced or its position changed according to the size of the test chamber, so that the device can be stably connected to the test chamber.

[0004] In the aforementioned application, the basic regulation of airflow temperature and humidity is achieved by adjusting the pump, and the filter plate filters impurities. The telescopic tube and docking frame are used to adapt to different experimental chambers, realizing the function of separating the control structure from the experimental container. However, there are problems with the uniformity of airflow mixing. The temperature and humidity regulating airflow output by the regulating pump enters the cover directly without being diverted and stirred, which easily forms airflow clumps, resulting in large local temperature and humidity deviations in the experimental chamber. Therefore, in order to solve the problems of uneven airflow mixing, narrow coverage, and poor regulation flexibility of the existing device, we propose a laboratory constant temperature and humidity regulating device. Utility Model Content

[0005] This invention proposes a laboratory constant temperature and humidity control device.

[0006] The technical solution of this utility model is as follows: A laboratory constant temperature and humidity regulating device includes: a device shell, a humidity control box, a temperature control box, an air supply box and a power supply box are fixedly connected to the top of the inner wall of the device shell respectively, a control panel is provided on the side of the device shell, and a flow mixing device is provided on the top of the device shell; The flow-dividing and mixing device includes an air supply channel, the air inlet side of which is fixedly connected to the output port of the air supply box, a flow divider plate fixedly connected to the inner wall side of the air supply channel, a mixing box fixedly connected to the output side of the air supply channel, the bottom of the mixing box fixedly connected to the top of the equipment housing, a support shaft fixedly connected to the top of the inner wall of the mixing box, and a mixing impeller rotatably connected to the circumferential surface of the support shaft.

[0007] The mixing impeller is configured in two parts, with the circumferential surfaces of the two mixing impellers located at the top and bottom of the flow divider plate, respectively. The two mixing impellers correspond to the airflow on both sides of the flow divider plate, and can synchronously stir the airflow after the flow divider from both the top and bottom dimensions, avoiding uneven temperature and humidity mixing caused by airflow stratification, improving the comprehensiveness and uniformity of airflow mixing, and providing a stable temperature and humidity environment for the laboratory.

[0008] The side of the mixing impeller blades has through holes, and the number of through holes is set to a certain number and is arranged in a linear array along the side of the mixing impeller blades. The number of through holes arranged in a linear array can reduce the airflow resistance when the blades rotate, further break up airflow clumps, and allow airflows with different temperatures and humidity to fully intertwine at the micro level, thereby improving the mixing accuracy.

[0009] Temperature and humidity sensors are fixedly connected to the bottom of the inner wall of the mixing box. The temperature and humidity sensors are electrically connected to the control panel. The temperature and humidity sensors can collect the temperature and humidity data of the mixed airflow in real time and transmit it to the control panel synchronously to realize the visual monitoring of temperature and humidity data.

[0010] The mixing box has an air guide device on its circumferential surface. The air guide device includes a controller. The bottom of the controller is fixedly connected to the top of the mixing box. An air outlet is opened on the side of the mixing box. A rotating shaft is rotatably connected to the bottom of the inner wall of the air outlet. An air guide vane is fixedly connected to the circumferential surface of the rotating shaft. A drive motor is fixedly connected to the top of the rotating shaft. The circumferential surface of the drive motor is fixedly connected to the circumferential surface of the mixing box.

[0011] The rotating shaft is electrically connected to the controller. The side of the air guide vane is not located on the displacement trajectory of the mixing impeller. The rotating shaft is electrically connected to the controller, and the angle of the air guide vane can be remotely adjusted through the control panel to achieve flexible adjustment of the air supply direction and adapt to the air supply needs of different areas of the laboratory. The displacement trajectories of the air guide vane and the mixing impeller do not interfere with each other, avoiding collisions between the two and causing equipment damage.

[0012] The system has four air outlets arranged in a circular array along the vertical central axis of the mixing chamber. The four circularly arrayed air outlets can deliver air in a wide area, allowing the regulated airflow to evenly cover every corner of the laboratory, avoiding excessive temperature and humidity in local areas, solving the problem of dead zones in traditional single-outlet air outlet equipment, and ensuring consistent temperature and humidity in the experimental space.

[0013] The number of rotating shafts and air guide vanes is set to several, and they are arranged in a circular array along the vertical central axis of the mixing box. The several rotating shafts and air guide vanes arranged in a circular array along the vertical central axis of the mixing box can be precisely matched with the four air outlets. By independently adjusting the angle of each set of air guide vanes, differentiated control of the air supply direction of different air outlets can be achieved.

[0014] The working principle and beneficial effects of this utility model are as follows: 1. This utility model achieves secondary infiltration and mixing of airflow through the coordinated operation of a flow divider plate, a double-mixing impeller, and a flow divider mixing device with through-hole blades. This ensures that the temperature and humidity airflow after adjustment in the temperature and humidity control chambers are fully integrated, solving the problem of uneven airflow mixing in traditional devices that leads to large local temperature and humidity deviations. It can quickly form a uniform airflow with temperature and humidity, significantly improving the accuracy of constant temperature and humidity in the laboratory environment.

[0015] 2. This utility model achieves directional airflow and multi-area delivery by using a temperature and humidity sensor for real-time monitoring, a drive motor controlled by a controller, and a circular array of air outlets. This solves the problems of limited airflow coverage and lagging control in traditional devices, allowing constant temperature and humidity airflow to evenly cover every corner of the laboratory, while also achieving real-time dynamic control to effectively maintain the stability of the laboratory environment.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the three-dimensional flow-diverting mixing device and the air-guiding device of this utility model; Figure 3 This is a three-dimensional top-view half-section structural schematic diagram of the present invention; Figure 4 This is a three-dimensional side view half-section structural schematic diagram of the present invention; Figure 5 This utility model is three-dimensional Figure 4 A magnified structural diagram of part A in the middle.

[0019] In the diagram: 1. Equipment casing; 2. Humidity control box; 3. Temperature control box; 4. Air supply box; 5. Power supply box; 6. Control panel; 7. Flow mixing device; 71. Air supply duct; 72. Flow divider; 73. Mixing box; 74. Support shaft; 75. Mixing impeller; 8. Air guide device; 81. Controller; 82. Air outlet; 83. Rotating shaft; 84. Air guide vane; 85. Drive motor. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1 like Figures 1-5 As shown, this embodiment proposes a laboratory constant temperature and humidity control device, including a device housing 1. A humidity control box 2, a temperature control box 3, an air supply box 4, and a power supply box 5 are fixedly connected to the top of the inner wall of the device housing 1. A control panel 6 is provided on the side of the device housing 1, and a flow mixing device 7 is provided on the top of the device housing 1. The flow mixing device 7 includes an air supply channel 71, the air inlet side of which is fixedly connected to the output port of the air supply box 4, a flow divider 72 is fixedly connected to the inner wall side of the air supply channel 71, a mixing box 73 is fixedly connected to the output side of the air supply channel 71, the bottom of the mixing box 73 is fixedly connected to the top of the equipment housing 1, a support shaft 74 is fixedly connected to the top of the inner wall of the mixing box 73, and a mixing impeller 75 is rotatably connected to the circumferential surface of the support shaft 74.

[0022] There are two mixing impellers 75, with their circumferential surfaces located at the top and bottom of the flow divider 72, respectively. The two mixing impellers 75 correspond to the airflow on both sides of the flow divider 72, and can synchronously stir the airflow after diversion from both the top and bottom dimensions. This avoids uneven temperature and humidity mixing caused by airflow stratification, improves the comprehensiveness and uniformity of airflow mixing, and provides a stable temperature and humidity environment for the laboratory.

[0023] The side of the blades of the mixing impeller 75 has through holes. The number of through holes is set to a certain number and is arranged in a linear array along the side of the blades of the mixing impeller 75. The number of through holes arranged in a linear array can reduce the airflow resistance when the blades rotate, further break up the airflow clumps, and allow the airflows with different temperatures and humidity to fully intertwine at the micro level, thereby improving the mixing accuracy.

[0024] The number of rotating shafts and air guide vanes is set to several, and they are arranged in a circular array along the vertical central axis of the mixing box. The several rotating shafts and air guide vanes arranged in a circular array along the vertical central axis of the mixing box can be precisely matched with the four air outlets. By independently adjusting the angle of each set of air guide vanes, differentiated control of the air supply direction of different air outlets can be achieved.

[0025] Temperature and humidity sensors are fixedly connected to the bottom of the inner wall of the mixing box 73. The temperature and humidity sensors are electrically connected to the control panel 6. The temperature and humidity sensors can collect the temperature and humidity data of the mixed airflow in real time and transmit it to the control panel 6 synchronously to realize the visual monitoring of temperature and humidity data.

[0026] In this embodiment, the required temperature and humidity parameters for the laboratory are first set via the control panel 6 on the side of the equipment casing 1. The power supply box 5 is then activated to supply power to all components. The humidity control box 2 and temperature control box 3 are activated simultaneously to pre-treat the incoming basic airflow in terms of temperature and humidity. The pre-treated airflow is then delivered to the air supply box 4, which in turn delivers the pre-treated airflow to the air supply channel 71 of the splitting and mixing device 7. As the airflow flows within the air supply channel 71, it is divided into upper and lower airflows by the splitting plate 72 on the inner wall side, preventing a single airflow from directly entering the mixing box 73 and causing insufficient mixing. The divided upper and lower airflows then enter the mixing box 73 respectively. At this time, the two mixing impellers 75 connected to the circumferential surface of the support shaft 74 rotate synchronously. The linear array of through holes on the side of the blades of the mixing impeller 75 reduces the airflow resistance when the blades rotate and breaks up the airflow clumps, so that the upper and lower airflows are fully intertwined at the micro level, achieving uniform mixing of temperature and humidity. The temperature sensor and humidity sensor at the bottom of the inner wall of the mixing box 73 collect the temperature and humidity data of the mixed airflow in real time and transmit the data electrically to the control panel 6. If the data does not reach the set value, the control panel 6 will send a command to the temperature control box 3 and the humidity control box 2 to adjust the pre-processing parameters until the temperature and humidity of the mixed airflow meet the requirements.

[0027] Example 2 like Figures 1-5 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes a laboratory constant temperature and humidity regulating device, including: a guide device 8 is provided on the circumferential surface of the mixing chamber 73, the guide device 8 includes a controller 81, the bottom of the controller 81 is fixedly connected to the top of the mixing chamber 73, an air outlet 82 is opened on the side of the mixing chamber 73, a rotating shaft 83 is rotatably connected to the bottom of the inner wall of the air outlet 82, a guide vane 84 is fixedly connected to the circumferential surface of the rotating shaft 83, a drive motor 85 is fixedly connected to the top of the rotating shaft 83, and the circumferential surface of the drive motor 85 is fixedly connected to the circumferential surface of the mixing chamber 73.

[0028] The rotating shaft 83 is electrically connected to the controller 81. The side of the air guide vane 84 is not located on the displacement trajectory of the mixing impeller 75. The rotating shaft 83 is electrically connected to the controller 81. The angle of the air guide vane 84 can be remotely adjusted through the control panel 6 to achieve flexible adjustment of the air supply direction and adapt to the air supply needs of different areas of the laboratory. The displacement trajectories of the air guide vane 84 and the mixing impeller 75 do not interfere with each other, avoiding collisions between the two and causing equipment damage.

[0029] There are four air outlets 82, which are arranged in a circular array along the vertical central axis of the mixing box 73. The four circular array of air outlets 82 can achieve wide-range air supply, so that the regulated airflow can evenly cover all corners of the laboratory, avoid local temperature and humidity exceeding the standard, solve the problem of air supply dead zone in traditional single air outlet equipment, and ensure the consistency of temperature and humidity in the experimental space.

[0030] The number of rotating shafts 83 and air guide vanes 84 is set to a certain number and arranged in a circular array along the vertical central axis of the mixing box 73. The rotating shafts 83 and air guide vanes 84 arranged in a circular array along the vertical central axis of the mixing box 73 can be precisely matched with the four air outlets 82. By independently adjusting the angle of each set of air guide vanes 84, the air delivery direction of different air outlets 82 can be differentiated.

[0031] In this embodiment, after the airflow with the required temperature and humidity is output by the diversion and mixing device 7, the airflow is temporarily stored in the mixing box 73. The control panel 6 sends an adjustment command to the controller 81 of the air guide device 8 according to the air supply needs of different areas of the laboratory. After receiving the command, the controller 81 sends a signal to the drive motor 85. The drive motor 85 drives the rotating shaft 83 to rotate the air guide vanes 84 fixed on the circumferential surface. Since the side of the air guide vanes 84 is not located on the displacement trajectory of the mixing impeller 75, it will not collide with the mixing impeller 75 during the adjustment process, ensuring the safety of the equipment. The four air outlets 82 arranged in a circular array along the vertical central axis on the side of the mixing box 73 are precisely matched with several air guide vanes 84. By independently adjusting the angle of the air guide vanes 84 corresponding to each air outlet 82, the qualified airflow is sent out from different directions, evenly covering all corners of the laboratory, avoiding the dead zones of traditional single-outlet equipment, and ultimately maintaining the overall temperature and humidity stability of the laboratory.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A laboratory constant temperature and humidity control device, characterized in that, include: The equipment housing (1) has a humidity control box (2), a temperature control box (3), an air supply box (4) and a power supply box (5) fixedly connected to the top of the inner wall of the equipment housing (1). The equipment housing (1) has a control panel (6) on its side and a flow mixing device (7) on its top. The flow mixing device (7) includes an air supply channel (71), the air inlet side of which is fixedly connected to the outlet of the air supply box (4), a flow divider plate (72) is fixedly connected to the inner wall side of the air supply channel (71), a mixing box (73) is fixedly connected to the outlet side of the air supply channel (71), the bottom of the mixing box (73) is fixedly connected to the top of the equipment housing (1), a support shaft (74) is fixedly connected to the top of the inner wall of the mixing box (73), and a mixing impeller (75) is rotatably connected to the circumferential surface of the support shaft (74).

2. The laboratory constant temperature and humidity control device according to claim 1, characterized in that, The number of the mixing impeller (75) is set to two, and the circumferential surfaces of the two mixing impellers (75) are located at the top and bottom of the diverter plate (72), respectively.

3. A laboratory constant temperature and humidity control device according to claim 2, characterized in that, The side of the blades of the mixing impeller (75) is provided with through holes, and the number of through holes is set to several, and they are arranged in a linear array along the side of the blades of the mixing impeller (75).

4. A laboratory constant temperature and humidity regulating device according to claim 3, characterized in that, Temperature sensor and humidity sensor are fixedly connected to the bottom of the inner wall of the mixing box (73), and the temperature sensor and humidity sensor are electrically connected to the control panel (6).

5. A laboratory constant temperature and humidity regulating device according to claim 4, characterized in that, The mixing box (73) is provided with an air guide device (8) on its circumferential surface. The air guide device (8) includes a controller (81). The bottom of the controller (81) is fixedly connected to the top of the mixing box (73). An air outlet (82) is provided on the side of the mixing box (73). A rotating shaft (83) is rotatably connected to the bottom of the inner wall of the air outlet (82). An air guide vane (84) is fixedly connected to the circumferential surface of the rotating shaft (83). A drive motor (85) is fixedly connected to the top of the rotating shaft (83). The circumferential surface of the drive motor (85) is fixedly connected to the circumferential surface of the mixing box (73).

6. A laboratory constant temperature and humidity regulating device according to claim 5, characterized in that, The rotating shaft (83) is electrically connected to the controller (81), and the side of the air guide vane (84) is not located on the displacement trajectory of the mixing impeller (75).

7. A laboratory constant temperature and humidity regulating device according to claim 6, characterized in that, The number of air outlets (82) is set to four, and they are arranged in a circular array along the vertical central axis of the mixing box (73).

8. A laboratory constant temperature and humidity regulating device according to claim 7, characterized in that, The number of the rotating shaft (83) and the air guide vanes (84) is set to several, and they are arranged in a circular array along the vertical central axis of the mixing box (73).

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