Constant-temperature and constant-humidity laboratory filtering structure

Abstract

The utility model provides a constant-temperature and constant-humidity laboratory filtering structure, which belongs to the technical field of laboratory filtering and comprises a filtering box, an air inlet is arranged on the right side of the filtering box, and the inside of the filtering box is divided into a filtering cabin, a temperature and humidity control cabin and a shunting cabin through structural plates; the centrifugal fan is arranged at the air inlet; the filtering device is arranged in the filtering cabin; a temperature regulation and control unit is arranged in the water tank, and a shunting pipe is arranged at an outlet of the filtering device, penetrates into the water tank from one side, close to the bottom, of the right side of the water tank and penetrates through the top wall of the water tank to be communicated with a shunting cabin; the monitoring control unit comprises a controller, a humidity sensor and a temperature sensor which are arranged on the top wall of the shunting cabin, and the problems that in the prior art, the temperature and the humidity of air cannot be effectively regulated and controlled, so that after external air enters a laboratory, the temperature and the humidity of the external air cannot meet specific conditions needed by experiments, and the experiment time is shortened are solved. Therefore, adverse effects on experimental results are generated.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory filtration, and particularly relates to a constant temperature and humidity laboratory filtration structure. Background Art

[0002] In a modern laboratory, a constant temperature and humidity environment is crucial for ensuring the accuracy and reliability of experimental results. Traditional laboratory filtration structures mainly filter and transport external air through vane axial flow ventilators and filtration devices. When filtering air, although this method can effectively remove dust and harmful substances in the air, it cannot effectively control the temperature and humidity of the air. As a result, after the external air enters the laboratory, its temperature and humidity may not meet the specific conditions required for the experiment, thereby having an adverse impact on the experimental results. Content of the Utility Model

[0003] To make up for the above deficiencies, the utility model provides a constant temperature and humidity laboratory filtration structure to solve the above problems.

[0004] The utility model is implemented as follows:

[0005] A constant temperature and humidity laboratory filtration structure includes:

[0006] A filtration box, an air inlet is arranged on the right side of the filtration box near the bottom. Its interior is divided into a filtration chamber, a temperature and humidity control chamber, and a diversion chamber by a structural plate. A plurality of third air outlets extending outward are arranged on the inner side wall of the diversion chamber, and the third air outlets are communicated with a ventilation duct at the top of the laboratory;

[0007] A centrifugal fan is arranged at the air inlet and is communicated with it;

[0008] A filtration device is arranged in the filtration chamber, and the right side of the filtration device is communicated with the air inlet;

[0009] A water tank is arranged inside the temperature and humidity control chamber. A liquid level sensor is arranged on the inner side wall of the water tank. A water injection port is arranged on the inner side wall of the water tank near the top. The water injection port penetrates through the filtration box and is communicated with external water resources. A temperature control unit is arranged inside the water tank. A diversion pipe is arranged at the outlet of the filtration device. The diversion pipe penetrates into the interior from the right side near the bottom of the water tank and penetrates through its top wall to be communicated with the diversion chamber;

[0010] A monitoring and control unit includes a controller, a humidity sensor, and a temperature sensor arranged on the top wall of the diversion chamber. The controller is electrically connected to the centrifugal fan, the liquid level sensor, the temperature control unit, and the diversion pipe respectively.

[0011] In an embodiment of the present utility model, the filtering device includes a mounting frame, the mounting frame is arranged at the bottom of the filtering chamber, the filtering device is installed on the top of the mounting frame, its right side is communicated with the air inlet, and a sealing ring is arranged at the connection part.

[0012] In an embodiment of the present utility model, the temperature control unit includes a condensing pipe arranged at the bottom of the water tank, a honeycomb partition is arranged in the middle of the water tank, and a heating pipe is arranged on the top of the honeycomb partition.

[0013] In an embodiment of the present utility model, a first air outlet and a second air outlet are arranged on the structural plate at the bottom of the shunt chamber, a one-way solenoid valve is arranged on the top of the first air outlet, and the bottom of the first air outlet is communicated with the water tank.

[0014] In an embodiment of the present utility model, the shunt pipe includes a first copper pipe, the first copper pipe is vertically arranged inside the water tank, its bottom penetrates through the side wall of the water tank to the right and is communicated with the outlet of the filtering device, the other end of it is provided with a three-way solenoid valve, the three-way solenoid valve has a channel a and a channel b, a second copper pipe is connected at the channel a, the second copper pipe penetrates through the top of the water tank and is communicated with the second air outlet, a third copper pipe is connected at the channel b, the third copper pipe extends downward in the water tank, and a bubble diffuser is arranged at its end.

[0015] In an embodiment of the present utility model, the bubble diffuser includes a main exhaust pipe, a plurality of side exhaust pipes are arranged on both sides of the main exhaust pipe, and nozzles are arranged at the bottom of the side exhaust pipes near both ends.

[0016] In an embodiment of the present utility model, the intersection of the first copper pipe and the liquid in the water tank is a spiral copper pipe.

[0017] In an embodiment of the present utility model, the signal output ends of the temperature sensor, the humidity sensor and the liquid level sensor are communicatively connected with the signal input end of the controller, and the signal input ends of the three-way solenoid valve, the one-way solenoid valve, the centrifugal fan, the heating pipe and the condensing pipe are communicatively connected with the signal output end of the controller.

[0018] The beneficial effects of the present utility model are as follows: A filtering device is arranged in the filtering box in this structure. The external air is inhaled into the filtering chamber by the centrifugal fan and filtered by the filtering material, effectively removing dust and harmful substances in the air; through the temperature control unit and the shunt pipe arranged in the water tank, the precise control of the air temperature and humidity is realized, and whether the treated air meets the standard is monitored by the monitoring and control unit to dynamically adjust it to meet the requirements. This design improves the working efficiency and safety of the laboratory and also provides a strong guarantee for the accuracy and reliability of the experimental results. Description of the Drawings

[0019] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the whole provided by the embodiment of the present utility model;

[0021] Figure 2 It is a schematic cross-sectional structural diagram of the whole provided by the embodiment of the present utility model;

[0022] Figure 3 It is a schematic cross-sectional structural diagram of the filter box provided by the embodiment of the present utility model;

[0023] Figure 4 It is a schematic cross-sectional structural diagram of the water tank provided by the embodiment of the present utility model;

[0024] Figure 5 It is a schematic structural diagram of the bubble diffuser tube provided by the embodiment of the present utility model;

[0025] Figure 6 It is a communication block diagram provided by the embodiment of the present utility model.

[0026] In the figure: 10, centrifugal fan; 20, filter box; 21, air inlet; 22, filter chamber; 23, temperature and humidity control chamber; 24, shunt chamber; 2401, first air outlet; 2402, second air outlet; 2403, third air outlet; 30, filter device; 31, mounting rack; 32, sealing ring; 40, water tank; 41, water injection port; 42, liquid level sensor; 43, temperature regulation unit; 4301, heating pipe; 4302, condensing pipe; 4303, honeycomb partition; 44, shunt pipe; 4401, three-way solenoid valve; 4402, first copper pipe; 44021, spiral copper pipe; 4403, second copper pipe; 4404, third copper pipe; 4405, bubble diffuser tube; 44051, main exhaust pipe; 44052, side exhaust pipe; 44053, nozzle; 4406, one-way solenoid valve; 50, monitoring and control unit; 51, controller; 52, humidity sensor; 53, temperature sensor. Specific Embodiments

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] As Figures 1 - 3 shown, the present utility model provides a filtering structure for a constant temperature and humidity laboratory, which includes a filtering box 20. An air inlet 21 is provided on the right side near the bottom of the filtering box 20. Its interior is divided into a filtering chamber 22, a temperature and humidity control chamber 23, and a flow splitting chamber 24 by a structural plate. A plurality of outwardly extending third air outlets 2403 are provided on the inner side wall of the flow splitting chamber 24. The third air outlets 2403 are communicated with the ventilation duct at the top of the laboratory. A centrifugal fan 10 is provided at the air inlet 21 and is communicated with it. A filtering device 30 is provided in the filtering chamber 22. The centrifugal fan 10 enables external air to pass through the filtering device 30, effectively removing dust and harmful substances in the air. The filtered air is adjusted in temperature and humidity by a water tank 40 and finally flows into the flow splitting chamber 24. At the same time, the monitoring and control unit 50 is used to monitor whether the processed air meets the standards and dynamically adjust the device according to the monitoring results. This structure can not only efficiently filter external air, but also precisely control the temperature and humidity of the air during filtering, ensuring that the externally flowing air will not pollute the experiment and meeting the strict requirements of the laboratory for temperature and humidity.

[0030] As Figure 2 shown, the filtering device 30 includes a mounting frame 31. The mounting frame 31 is provided at the bottom of the filtering chamber 22. The filtering device 30 is installed on the top of the mounting frame 31. Its right side is communicated with the air inlet 21, and a sealing ring 32 is provided at the connection.

[0031] As Figures 2 - 4As shown in the figure, the water tank 40 is arranged inside the temperature and humidity control chamber 23. A liquid level sensor 42 is arranged on the inner side wall of the water tank 40. An injection port 41 is arranged on the inner side wall of the water tank 40 near the top side. The injection port 41 penetrates through the filter box 20 and is communicated with external water resources. The height of the water surface in the water tank 40 is monitored by the liquid level sensor 42. When the water surface height is lower than the preset value, it can be replenished in time through the injection port 41. A temperature regulation unit 43 is arranged inside the water tank 40. A shunt pipe 44 is arranged at the outlet of the filtering device 30. The shunt pipe 44 penetrates into the interior from the side near the bottom on the right side of the water tank 40 and penetrates through its top wall to be communicated with the shunt chamber 24.

[0032] In this embodiment, the temperature regulation unit 43 includes a condensing pipe 4302 arranged at the bottom of the water tank 40. A honeycomb partition plate 4303 is arranged in the middle of the water tank 40. A heating pipe 4301 is arranged on the top of the honeycomb partition plate 4303. This design follows the principle that cold air flows downward and hot air flows upward, so as to better change the water temperature in the water tank 40.

[0033] In this embodiment, a first air outlet 2401 and a second air outlet 2402 are arranged on the structural plate at the bottom of the shunt chamber 24. A one-way solenoid valve 4406 is arranged on the top of the first air outlet 2401. The bottom of the first air outlet 2401 is communicated with the water tank 40.

[0034] Furthermore, the shunt pipe 44 includes a first copper pipe 4402. The first copper pipe 4402 is vertically arranged inside the water tank 40. Its bottom penetrates through the side wall of the water tank 40 to the right and is communicated with the outlet of the filtering device 30. The other end of it is provided with a three-way solenoid valve 4401. The three-way solenoid valve 4401 has a channel a and a channel b. A second copper pipe 4403 is connected at the channel a. The second copper pipe 4403 penetrates through the top of the water tank 40 and is communicated with the second air outlet 2402. A third copper pipe 4404 is connected at the channel b. The third copper pipe 4404 extends downward in the water tank 40. The end of it is provided with a bubble diffuser 4405.

[0035] Furthermore, the bubble diffuser 4405 includes a main exhaust pipe 44051. A plurality of side exhaust pipes 44052 are arranged on both sides of the main exhaust pipe 44051. Spray heads 44053 are arranged near both ends at the bottom of the side exhaust pipes 44052.

[0036] Embodiment 1: When the humidity sensor 52 monitors that the air humidity in the shunt chamber 24 is low and does not meet the laboratory requirements, the controller 51 controls the three-way solenoid valve 4401 to connect the first copper pipe 4402 and the third copper pipe 4404. At the same time, the one-way solenoid valve 4406 is opened, and then the water temperature is controlled by the temperature regulation unit 43. The filtered air first changes its temperature through the first copper pipe 4402 and is controlled to be in a constant temperature state. The third copper pipe 4404 converts the air into dense bubbles underwater, thereby increasing the air humidity in the upper layer of the water surface. The air with temperature and humidity regulation completed flows into the shunt chamber 24 through the first air outlet 2401.

[0037] Embodiment 2: When the humidity sensor 52 monitors that the air humidity in the shunt chamber 24 is high, there is no need to humidify the external air at this time. That is, the controller 51 controls the three-way solenoid valve 4401 to connect the first copper pipe 4402 and the second copper pipe 4403, and at the same time closes the one-way solenoid valve 4406. The air after temperature control through the first copper pipe 4402 directly flows into the shunt chamber 24 through the second air outlet 2402.

[0038] As a preferred embodiment, the intersection of the first copper pipe 4402 and the liquid in the water tank 40 is a spiral copper pipe 44021. Using water as the temperature control medium, its temperature change is stable, but its temperature change is also slower. Increasing the spiral structure can increase the temperature control time to ensure its constant temperature state.

[0039] As Figure 6 shown, the monitoring and control unit 50 includes a controller 51, a humidity sensor 52, and a temperature sensor 53 provided on the top wall of the shunt chamber 24. The signal output ends of the temperature sensor 53, the humidity sensor 52, and the liquid level sensor 42 are communicatively connected to the signal input end of the controller 51. The signal input ends of the three-way solenoid valve 4401, the one-way solenoid valve 4406, the centrifugal fan 10, the heating pipe 4301, and the condensing pipe 4302 are communicatively connected to the signal output end of the controller 51.

[0040] It should be noted that the specific model specifications of the centrifugal fan 10, the liquid level sensor 42, the heating pipe 4301, the condensing pipe 4302, the three-way solenoid valve 4401, the one-way solenoid valve 4406, the controller 51, the humidity sensor 52, and the temperature sensor 53 need to be selected according to the actual specifications of the device. The specific selection calculation method uses the existing technology in this field, so it will not be elaborated in detail.

[0041] The power supply and principle of the centrifugal fan 10, the liquid level sensor 42, the heating pipe 4301, the condensing pipe 4302, the three-way solenoid valve 4401, the one-way solenoid valve 4406, the controller 51, the humidity sensor 52, and the temperature sensor 53 are clear to those skilled in the art and will not be described in detail here.

[0042] The above further describes the present utility model by means of specific embodiments. However, it should be understood that this specific description should not be construed as a limitation on the essence and scope of the present utility model. Various modifications made by those of ordinary skill in the art to the above embodiments after reading this specification all fall within the scope protected by the present utility model.

Claims

1. A constant temperature and humidity laboratory filtration structure, characterized in that, Comprising: A filter box (20), an air inlet (21) is arranged on the right side of the filter box (20) near the bottom, and its interior is divided into a filter chamber (22), a temperature and humidity control chamber (23) and a shunt chamber (24) by a structural plate. A number of third air outlets (2403) extending outward are arranged on the inner side wall of the shunt chamber (24), and the third air outlets (2403) are communicated with a ventilation duct at the top of the laboratory; A centrifugal fan (10), arranged at the air inlet (21) and communicated with it; A filtering device (30), arranged in the filter chamber (22), and the right side of the filtering device (30) is communicated with the air inlet (21); A water tank (40), arranged inside the temperature and humidity control chamber (23). A liquid level sensor (42) is arranged on the inner side wall of the water tank (40). A water injection port (41) is arranged on the inner side wall of the water tank (40) near the top. The water injection port (41) penetrates through the filter box (20) and is communicated with external water resources. A temperature regulation unit (43) is arranged inside the water tank (40). A shunt pipe (44) is arranged at the outlet of the filtering device (30). The shunt pipe (44) penetrates from the right side of the water tank (40) near the bottom to the inside and penetrates through its top wall to be communicated with the shunt chamber (24); A monitoring and control unit (50), including a controller (51), a humidity sensor (52) and a temperature sensor (53) arranged on the top wall of the shunt chamber (24). The controller (51) is electrically connected to the centrifugal fan (10), the liquid level sensor (42), the temperature regulation unit (43) and the shunt pipe (44) respectively.

2. The filtration structure of a constant temperature and humidity laboratory according to claim 1, characterized in that, The filtering device (30) includes a mounting frame (31). The mounting frame (31) is arranged at the bottom of the filter chamber (22). The filtering device (30) is mounted on the top of the mounting frame (31), and its right side is communicated with the air inlet (21), and a sealing ring (32) is arranged at the connection part.

3. The filtering structure of a constant temperature and humidity laboratory according to claim 2, characterized in that, The temperature regulation unit (43) includes a condensing pipe (4302) arranged at the bottom of the water tank (40). A honeycomb partition plate (4303) is arranged in the middle of the water tank (40). A heating pipe (4301) is arranged on the top of the honeycomb partition plate (4303).

4. A constant temperature and humidity laboratory filtration structure according to claim 3, characterized in that, A first air outlet (2401) and a second air outlet (2402) are arranged on the structural plate at the bottom of the shunt chamber (24). A one-way solenoid valve (4406) is arranged on the top of the first air outlet (2401). The bottom of the first air outlet (2401) is communicated with the water tank (40).

5. A constant temperature and humidity laboratory filtration structure according to claim 4, characterized in that, The shunt pipe (44) includes a first copper pipe (4402) which is vertically placed inside the water tank (40). Its bottom penetrates the side wall of the water tank (40) to the right and communicates with the outlet of the filtering device (30). The other end is provided with a three-way solenoid valve (4401). The three-way solenoid valve (4401) has a passage a and a passage b. A second copper pipe (4403) is connected to the passage a. The second copper pipe (4403) penetrates the top of the water tank (40) and communicates with the second air outlet (2402). A third copper pipe (4404) is connected to the passage b. The third copper pipe (4404) extends downward in the water tank (40), and a bubble diffuser tube (4405) is provided at its end.

6. The filtering structure of a constant temperature and humidity laboratory according to claim 5, characterized in that, The bubble diffuser tube (4405) includes a main exhaust pipe (44051). A number of side exhaust pipes (44052) are provided on both sides of the main exhaust pipe (44051). Sprayers (44053) are provided at the bottom of the side exhaust pipes (44052) near both ends.

7. The filtering structure of a constant temperature and humidity laboratory according to claim 6, characterized in that, The intersection of the first copper pipe (4402) and the liquid in the water tank (40) is a spiral copper pipe (44021).

8. A constant temperature and humidity laboratory filtration structure according to claim 7, characterized in that, The signal output ends of the temperature sensor (53), the humidity sensor (52) and the liquid level sensor (42) are communicatively connected to the signal input end of the controller (51). The signal input ends of the three-way solenoid valve (4401), the one-way solenoid valve (4406), the centrifugal fan (10), the heating pipe (4301) and the condensing pipe (4302) are communicatively connected to the signal output end of the controller (51).

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